brcm2708: add linux 4.19 support

Boot tested on Raspberry Pi B+ (BCM2708) and Raspberry Pi 2 (BCM2709)

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

config/Config-images.in

@@ -262,7 +262,7 @@ menu "Target Images"
 		int "Kernel partition size (in MB)"
 		depends on GRUB_IMAGES || USES_BOOT_PART
 		default 8 if TARGET_apm821xx_sata
-		default 20 if TARGET_brcm2708
+		default 64 if TARGET_brcm2708
 		default 16
 
 	config TARGET_ROOTFS_PARTSIZE

target/linux/brcm2708/Makefile

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2012-2016 OpenWrt.org
+# Copyright (C) 2012-2019 OpenWrt.org
 # Copyright (C) 2017 LEDE project
 #
 # This is free software, licensed under the GNU General Public License v2.
@@ -14,7 +14,7 @@ FEATURES:=ext4 audio usb usbgadget display gpio fpu squashfs rootfs-part boot-pa
 MAINTAINER:=Álvaro Fernández Rojas <noltari@gmail.com>
 SUBTARGETS:=bcm2708 bcm2709 bcm2710
 
-KERNEL_PATCHVER:=4.14
+KERNEL_PATCHVER:=4.19
 
 define Target/Description
 	Build firmware image for Broadcom BCM27xx SoC devices.

target/linux/brcm2708/bcm2708/config-4.19

@@ -0,0 +1,415 @@
+# CONFIG_AIO is not set
+CONFIG_ALIGNMENT_TRAP=y
+CONFIG_ARCH_BCM=y
+CONFIG_ARCH_BCM2835=y
+CONFIG_ARCH_CLOCKSOURCE_DATA=y
+CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
+CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
+CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
+CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
+CONFIG_ARCH_HAS_KCOV=y
+CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
+CONFIG_ARCH_HAS_PHYS_TO_DMA=y
+CONFIG_ARCH_HAS_SET_MEMORY=y
+CONFIG_ARCH_HAS_SG_CHAIN=y
+CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
+CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
+CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+CONFIG_ARCH_MULTIPLATFORM=y
+CONFIG_ARCH_MULTI_V6=y
+CONFIG_ARCH_MULTI_V6_V7=y
+CONFIG_ARCH_NR_GPIO=0
+CONFIG_ARCH_OPTIONAL_KERNEL_RWX=y
+CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_ARCH_SUPPORTS_UPROBES=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARCH_USE_BUILTIN_BSWAP=y
+CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
+CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
+CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
+# CONFIG_ARGON_MEM is not set
+CONFIG_ARM=y
+CONFIG_ARM_AMBA=y
+CONFIG_ARM_BCM2835_CPUFREQ=y
+CONFIG_ARM_CPU_SUSPEND=y
+CONFIG_ARM_ERRATA_411920=y
+CONFIG_ARM_GIC=y
+CONFIG_ARM_HAS_SG_CHAIN=y
+CONFIG_ARM_L1_CACHE_SHIFT=5
+CONFIG_ARM_PATCH_PHYS_VIRT=y
+# CONFIG_ARM_SCMI_PROTOCOL is not set
+# CONFIG_ARM_SP805_WATCHDOG is not set
+CONFIG_ARM_THUMB=y
+CONFIG_ARM_TIMER_SP804=y
+CONFIG_ARM_UNWIND=y
+CONFIG_AUTO_ZRELADDR=y
+# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+CONFIG_BCM2708_VCMEM=y
+CONFIG_BCM2835_DEVGPIOMEM=y
+CONFIG_BCM2835_FAST_MEMCPY=y
+CONFIG_BCM2835_MBOX=y
+CONFIG_BCM2835_POWER=y
+# CONFIG_BCM2835_SMI is not set
+CONFIG_BCM2835_THERMAL=y
+CONFIG_BCM2835_TIMER=y
+CONFIG_BCM2835_VCHIQ=y
+# CONFIG_BCM2835_VCHIQ_MMAL is not set
+CONFIG_BCM2835_WDT=y
+CONFIG_BCM_VCIO=y
+CONFIG_BCM_VC_SM=y
+# CONFIG_BCM_VC_SM_CMA is not set
+CONFIG_BCM_VIDEOCORE=y
+# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_SCSI_REQUEST=y
+# CONFIG_BRCMSTB_THERMAL is not set
+CONFIG_BRCM_CHAR_DRIVERS=y
+# CONFIG_BT_MTKUART is not set
+CONFIG_BUILD_BIN2C=y
+# CONFIG_CACHE_L2X0 is not set
+CONFIG_CC_HAS_ASM_GOTO=y
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLKSRC_MMIO=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMA=y
+CONFIG_CMA_ALIGNMENT=8
+CONFIG_CMA_AREAS=7
+# CONFIG_CMA_DEBUG is not set
+# CONFIG_CMA_DEBUGFS is not set
+CONFIG_CMA_SIZE_MBYTES=5
+# CONFIG_CMA_SIZE_SEL_MAX is not set
+CONFIG_CMA_SIZE_SEL_MBYTES=y
+# CONFIG_CMA_SIZE_SEL_MIN is not set
+# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
+CONFIG_COMMON_CLK=y
+CONFIG_CONFIGFS_FS=y
+CONFIG_CONSOLE_TRANSLATIONS=y
+# CONFIG_CPUFREQ_DT is not set
+CONFIG_CPU_32v6=y
+CONFIG_CPU_32v6K=y
+CONFIG_CPU_ABRT_EV6=y
+# CONFIG_CPU_BPREDICT_DISABLE is not set
+CONFIG_CPU_CACHE_V6=y
+CONFIG_CPU_CACHE_VIPT=y
+CONFIG_CPU_COPY_V6=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
+CONFIG_CPU_FREQ_GOV_ATTR_SET=y
+CONFIG_CPU_FREQ_GOV_COMMON=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_HAS_ASID=y
+# CONFIG_CPU_ICACHE_DISABLE is not set
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPU_IDLE_GOV_MENU=y
+CONFIG_CPU_PABRT_V6=y
+CONFIG_CPU_PM=y
+# CONFIG_CPU_THERMAL is not set
+CONFIG_CPU_THUMB_CAPABLE=y
+CONFIG_CPU_TLB_V6=y
+CONFIG_CPU_V6K=y
+CONFIG_CRC16=y
+CONFIG_CRYPTO_CRC32=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_WORKQUEUE=y
+CONFIG_DCACHE_WORD_ACCESS=y
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
+# CONFIG_DEBUG_USER is not set
+CONFIG_DEFAULT_CFQ=y
+# CONFIG_DEFAULT_DEADLINE is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
+CONFIG_DMADEVICES=y
+CONFIG_DMA_BCM2708=y
+CONFIG_DMA_BCM2835=y
+CONFIG_DMA_CMA=y
+CONFIG_DMA_ENGINE=y
+CONFIG_DMA_OF=y
+CONFIG_DMA_SHARED_BUFFER=y
+CONFIG_DMA_VIRTUAL_CHANNELS=y
+CONFIG_DNOTIFY=y
+CONFIG_DTC=y
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_EDAC_ATOMIC_SCRUB=y
+CONFIG_EDAC_SUPPORT=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+# CONFIG_F2FS_CHECK_FS is not set
+CONFIG_F2FS_FS=y
+# CONFIG_F2FS_FS_SECURITY is not set
+CONFIG_F2FS_FS_XATTR=y
+CONFIG_F2FS_STAT_FS=y
+CONFIG_FB=y
+CONFIG_FB_BCM2708=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+CONFIG_FB_CMDLINE=y
+# CONFIG_FB_RPISENSE is not set
+CONFIG_FB_SIMPLE=y
+CONFIG_FIQ=y
+CONFIG_FIX_EARLYCON_MEM=y
+# CONFIG_FONTS is not set
+CONFIG_FONT_8x16=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_SUPPORT=y
+# CONFIG_FPE_FASTFPE is not set
+# CONFIG_FPE_NWFPE is not set
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+CONFIG_FREEZER=y
+CONFIG_FS_IOMAP=y
+CONFIG_FS_MBCACHE=y
+CONFIG_FS_POSIX_ACL=y
+CONFIG_GENERIC_ALLOCATOR=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CPU_AUTOPROBE=y
+CONFIG_GENERIC_EARLY_IOREMAP=y
+CONFIG_GENERIC_IDLE_POLL_SETUP=y
+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_PINCONF=y
+CONFIG_GENERIC_PINCTRL_GROUPS=y
+CONFIG_GENERIC_PINMUX_FUNCTIONS=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIOLIB_IRQCHIP=y
+# CONFIG_GPIO_BCM_VIRT is not set
+CONFIG_GPIO_RASPBERRYPI_EXP=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_PFN_VALID=y
+CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+CONFIG_HAVE_CLK=y
+CONFIG_HAVE_CLK_PREPARE=y
+CONFIG_HAVE_CONTEXT_TRACKING=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_HAVE_DMA_CONTIGUOUS=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
+CONFIG_HAVE_EBPF_JIT=y
+CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
+CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_LD_DEAD_CODE_DATA_ELIMINATION=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_OPTPROBES=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_PERF_REGS=y
+CONFIG_HAVE_PERF_USER_STACK_DUMP=y
+CONFIG_HAVE_PROC_CPU=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_RSEQ=y
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HAVE_UID16=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
+# CONFIG_HID_BIGBEN_FF is not set
+CONFIG_HW_CONSOLE=y
+CONFIG_HZ_FIXED=0
+CONFIG_I2C=y
+# CONFIG_I2C_BCM2708 is not set
+CONFIG_I2C_BOARDINFO=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_INPUT=y
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+CONFIG_IOSCHED_CFQ=y
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_DOMAIN_HIERARCHY=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_WORK=y
+CONFIG_JBD2=y
+CONFIG_KERNEL_GZIP=y
+# CONFIG_KERNEL_XZ is not set
+# CONFIG_LCD_CLASS_DEVICE is not set
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGER_INPUT=y
+CONFIG_LIBFDT=y
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+CONFIG_LOGO=y
+CONFIG_LOGO_LINUX_CLUT224=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_MAC_PARTITION=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MAILBOX=y
+# CONFIG_MAILBOX_TEST is not set
+CONFIG_MAX_RAW_DEVS=256
+CONFIG_MEMFD_CREATE=y
+CONFIG_MEMORY_ISOLATION=y
+CONFIG_MFD_CORE=y
+# CONFIG_MFD_RPISENSE_CORE is not set
+CONFIG_MFD_SYSCON=y
+CONFIG_MIGHT_HAVE_CACHE_L2X0=y
+CONFIG_MIGHT_HAVE_PCI=y
+CONFIG_MIGRATION=y
+CONFIG_MMC=y
+CONFIG_MMC_BCM2835=y
+CONFIG_MMC_BCM2835_DMA=y
+CONFIG_MMC_BCM2835_MMC=y
+CONFIG_MMC_BCM2835_PIO_DMA_BARRIER=2
+CONFIG_MMC_BCM2835_SDHOST=y
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_BLOCK_MINORS=32
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MODULES_USE_ELF_REL=y
+# CONFIG_MTD is not set
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_PER_CPU_KM=y
+CONFIG_NLS=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NO_BOOTMEM=y
+CONFIG_NO_HZ=y
+CONFIG_NO_HZ_COMMON=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NVMEM=y
+CONFIG_OABI_COMPAT=y
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_CONFIGFS=y
+CONFIG_OF_DYNAMIC=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_KOBJ=y
+CONFIG_OF_NET=y
+CONFIG_OF_OVERLAY=y
+CONFIG_OF_RESERVED_MEM=y
+CONFIG_OF_RESOLVE=y
+CONFIG_OLD_SIGACTION=y
+CONFIG_OLD_SIGSUSPEND3=y
+CONFIG_PAGE_OFFSET=0xC0000000
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PGTABLE_LEVELS=2
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_BCM2835=y
+CONFIG_PM=y
+CONFIG_PM_CLK=y
+# CONFIG_PM_DEBUG is not set
+CONFIG_PM_GENERIC_DOMAINS=y
+CONFIG_PM_GENERIC_DOMAINS_OF=y
+CONFIG_PM_GENERIC_DOMAINS_SLEEP=y
+CONFIG_PM_SLEEP=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_PRINTK_TIME=y
+CONFIG_RASPBERRYPI_FIRMWARE=y
+CONFIG_RASPBERRYPI_POWER=y
+CONFIG_RATIONAL=y
+# CONFIG_RAVE_SP_CORE is not set
+CONFIG_RAW_DRIVER=y
+CONFIG_REFCOUNT_FULL=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_RESET_CONTROLLER=y
+CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+CONFIG_SCSI=y
+# CONFIG_SCSI_LOWLEVEL is not set
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_SERIAL_8250_BCM2835AUX=y
+# CONFIG_SERIAL_8250_DMA is not set
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_FSL=y
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=0
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_DEV_BUS=y
+# CONFIG_SERIAL_DEV_CTRL_TTYPORT is not set
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SG_POOL=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_SRCU=y
+# CONFIG_STRIP_ASM_SYMS is not set
+CONFIG_SUSPEND=y
+CONFIG_SUSPEND_FREEZER=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+# CONFIG_TEXTSEARCH is not set
+CONFIG_THERMAL=y
+CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
+CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
+CONFIG_THERMAL_GOV_STEP_WISE=y
+CONFIG_THERMAL_OF=y
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_TIMER_OF=y
+CONFIG_TIMER_PROBE=y
+CONFIG_TINY_SRCU=y
+CONFIG_TMPFS_POSIX_ACL=y
+# CONFIG_TOUCHSCREEN_RPI_FT5406 is not set
+CONFIG_UEVENT_HELPER_PATH=""
+# CONFIG_UID16 is not set
+CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_COMMON=y
+CONFIG_USB_DWCOTG=y
+# CONFIG_USB_EHCI_HCD is not set
+CONFIG_USB_NET_DRIVERS=y
+CONFIG_USB_NET_SMSC95XX=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_UAS=y
+CONFIG_USB_USBNET=y
+CONFIG_USE_OF=y
+CONFIG_VFP=y
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_VT_CONSOLE_SLEEP=y
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_WATCHDOG_CORE=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_BCJ=y
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_ZBOOT_ROM_TEXT=0x0

target/linux/brcm2708/bcm2708/target.mk

@@ -1,12 +1,13 @@
 #
-# Copyright (C) 2015 OpenWrt.org
+# Copyright (C) 2015-2019 OpenWrt.org
 #
 
 SUBTARGET:=bcm2708
-BOARDNAME:=BCM2708 based boards
+BOARDNAME:=BCM2708 boards (32 bit)
 CPU_TYPE:=arm1176jzf-s
 CPU_SUBTYPE:=vfp
 
 define Target/Description
-	Build firmware image for Broadcom BCM2708 SoC devices.
+	Build firmware image for BCM2708 devices.
+	This firmware features a 32 bit kernel.
 endef

target/linux/brcm2708/bcm2709/config-4.19

@@ -0,0 +1,497 @@
+# CONFIG_AIO is not set
+CONFIG_ALIGNMENT_TRAP=y
+# CONFIG_ARCH_AXXIA is not set
+CONFIG_ARCH_BCM=y
+CONFIG_ARCH_BCM2835=y
+# CONFIG_ARCH_BCM_HR2 is not set
+CONFIG_ARCH_CLOCKSOURCE_DATA=y
+CONFIG_ARCH_DMA_ADDR_T_64BIT=y
+CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
+CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
+CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
+CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
+CONFIG_ARCH_HAS_KCOV=y
+CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
+CONFIG_ARCH_HAS_PHYS_TO_DMA=y
+CONFIG_ARCH_HAS_PTE_SPECIAL=y
+CONFIG_ARCH_HAS_SET_MEMORY=y
+CONFIG_ARCH_HAS_SG_CHAIN=y
+CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
+CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
+CONFIG_ARCH_HAS_TICK_BROADCAST=y
+CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+CONFIG_ARCH_MULTIPLATFORM=y
+CONFIG_ARCH_MULTI_V6_V7=y
+CONFIG_ARCH_MULTI_V7=y
+CONFIG_ARCH_NR_GPIO=0
+CONFIG_ARCH_OPTIONAL_KERNEL_RWX=y
+CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT=y
+CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_ARCH_SUPPORTS_UPROBES=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARCH_USE_BUILTIN_BSWAP=y
+CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
+CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
+CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
+# CONFIG_ARGON_MEM is not set
+CONFIG_ARM=y
+CONFIG_ARM_AMBA=y
+CONFIG_ARM_ARCH_TIMER=y
+CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y
+CONFIG_ARM_BCM2835_CPUFREQ=y
+CONFIG_ARM_CPU_SUSPEND=y
+CONFIG_ARM_GIC=y
+CONFIG_ARM_HAS_SG_CHAIN=y
+CONFIG_ARM_L1_CACHE_SHIFT=6
+CONFIG_ARM_L1_CACHE_SHIFT_6=y
+CONFIG_ARM_LPAE=y
+CONFIG_ARM_PATCH_IDIV=y
+CONFIG_ARM_PATCH_PHYS_VIRT=y
+# CONFIG_ARM_SCMI_PROTOCOL is not set
+# CONFIG_ARM_SP805_WATCHDOG is not set
+CONFIG_ARM_THUMB=y
+# CONFIG_ARM_THUMBEE is not set
+CONFIG_ARM_TIMER_SP804=y
+CONFIG_ARM_UNWIND=y
+CONFIG_ARM_VIRT_EXT=y
+CONFIG_AUTO_ZRELADDR=y
+# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+CONFIG_BCM2708_VCMEM=y
+CONFIG_BCM2835_DEVGPIOMEM=y
+CONFIG_BCM2835_MBOX=y
+CONFIG_BCM2835_POWER=y
+# CONFIG_BCM2835_SMI is not set
+CONFIG_BCM2835_THERMAL=y
+CONFIG_BCM2835_TIMER=y
+CONFIG_BCM2835_VCHIQ=y
+# CONFIG_BCM2835_VCHIQ_MMAL is not set
+CONFIG_BCM2835_WDT=y
+CONFIG_BCM7XXX_PHY=y
+CONFIG_BCMGENET=y
+CONFIG_BCM_NET_PHYLIB=y
+CONFIG_BCM_VCIO=y
+CONFIG_BCM_VC_SM=y
+# CONFIG_BCM_VC_SM_CMA is not set
+CONFIG_BCM_VIDEOCORE=y
+# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_MQ_PCI=y
+CONFIG_BLK_SCSI_REQUEST=y
+CONFIG_BOUNCE=y
+CONFIG_BRCMSTB_THERMAL=y
+CONFIG_BRCM_CHAR_DRIVERS=y
+CONFIG_BROADCOM_PHY=y
+# CONFIG_BT_MTKUART is not set
+CONFIG_BUILD_BIN2C=y
+# CONFIG_CACHE_L2X0 is not set
+CONFIG_CC_HAS_ASM_GOTO=y
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLKSRC_MMIO=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMA=y
+CONFIG_CMA_ALIGNMENT=8
+CONFIG_CMA_AREAS=7
+# CONFIG_CMA_DEBUG is not set
+# CONFIG_CMA_DEBUGFS is not set
+CONFIG_CMA_SIZE_MBYTES=5
+# CONFIG_CMA_SIZE_SEL_MAX is not set
+CONFIG_CMA_SIZE_SEL_MBYTES=y
+# CONFIG_CMA_SIZE_SEL_MIN is not set
+# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
+CONFIG_COMMON_CLK=y
+CONFIG_CONFIGFS_FS=y
+CONFIG_CONSOLE_TRANSLATIONS=y
+# CONFIG_CPUFREQ_DT is not set
+CONFIG_CPU_32v6K=y
+CONFIG_CPU_32v7=y
+CONFIG_CPU_ABRT_EV7=y
+# CONFIG_CPU_BPREDICT_DISABLE is not set
+CONFIG_CPU_CACHE_V7=y
+CONFIG_CPU_CACHE_VIPT=y
+CONFIG_CPU_COPY_V6=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
+CONFIG_CPU_FREQ_GOV_ATTR_SET=y
+CONFIG_CPU_FREQ_GOV_COMMON=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_HAS_ASID=y
+# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
+# CONFIG_CPU_ICACHE_DISABLE is not set
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPU_IDLE_GOV_MENU=y
+CONFIG_CPU_PABRT_V7=y
+CONFIG_CPU_PM=y
+CONFIG_CPU_RMAP=y
+CONFIG_CPU_SPECTRE=y
+# CONFIG_CPU_THERMAL is not set
+CONFIG_CPU_THUMB_CAPABLE=y
+CONFIG_CPU_TLB_V7=y
+CONFIG_CPU_V7=y
+CONFIG_CRC16=y
+CONFIG_CRYPTO_AEAD=y
+CONFIG_CRYPTO_AEAD2=y
+CONFIG_CRYPTO_CRC32=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_MANAGER2=y
+CONFIG_CRYPTO_NULL2=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_WORKQUEUE=y
+CONFIG_DCACHE_WORD_ACCESS=y
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
+# CONFIG_DEBUG_USER is not set
+CONFIG_DEFAULT_CFQ=y
+# CONFIG_DEFAULT_DEADLINE is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
+CONFIG_DMADEVICES=y
+CONFIG_DMA_BCM2708=y
+CONFIG_DMA_BCM2835=y
+CONFIG_DMA_CMA=y
+CONFIG_DMA_ENGINE=y
+CONFIG_DMA_OF=y
+CONFIG_DMA_SHARED_BUFFER=y
+CONFIG_DMA_VIRTUAL_CHANNELS=y
+CONFIG_DNOTIFY=y
+CONFIG_DTC=y
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_EDAC_ATOMIC_SCRUB=y
+CONFIG_EDAC_SUPPORT=y
+CONFIG_ENABLE_MUST_CHECK=y
+# CONFIG_EXTCON_ARIZONA is not set
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+# CONFIG_F2FS_CHECK_FS is not set
+CONFIG_F2FS_FS=y
+# CONFIG_F2FS_FS_SECURITY is not set
+CONFIG_F2FS_FS_XATTR=y
+CONFIG_F2FS_STAT_FS=y
+CONFIG_FB=y
+CONFIG_FB_BCM2708=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+CONFIG_FB_CMDLINE=y
+# CONFIG_FB_RPISENSE is not set
+CONFIG_FB_SIMPLE=y
+CONFIG_FIQ=y
+CONFIG_FIXED_PHY=y
+CONFIG_FIX_EARLYCON_MEM=y
+# CONFIG_FONTS is not set
+CONFIG_FONT_8x16=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_SUPPORT=y
+# CONFIG_FPE_FASTFPE is not set
+# CONFIG_FPE_NWFPE is not set
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+CONFIG_FREEZER=y
+CONFIG_FS_IOMAP=y
+CONFIG_FS_MBCACHE=y
+CONFIG_FS_POSIX_ACL=y
+CONFIG_GENERIC_ALLOCATOR=y
+CONFIG_GENERIC_ARCH_TOPOLOGY=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
+CONFIG_GENERIC_CPU_AUTOPROBE=y
+CONFIG_GENERIC_EARLY_IOREMAP=y
+CONFIG_GENERIC_IDLE_POLL_SETUP=y
+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_GENERIC_IRQ_MIGRATION=y
+CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_PHY=y
+CONFIG_GENERIC_PINCONF=y
+CONFIG_GENERIC_PINCTRL_GROUPS=y
+CONFIG_GENERIC_PINMUX_FUNCTIONS=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIOLIB_IRQCHIP=y
+CONFIG_GPIO_BCM_VIRT=y
+CONFIG_GPIO_RASPBERRYPI_EXP=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDEN_BRANCH_PREDICTOR=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+CONFIG_HAVE_ARCH_BITREVERSE=y
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_PFN_VALID=y
+CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
+CONFIG_HAVE_ARM_ARCH_TIMER=y
+CONFIG_HAVE_ARM_SMCCC=y
+CONFIG_HAVE_CLK=y
+CONFIG_HAVE_CLK_PREPARE=y
+CONFIG_HAVE_CONTEXT_TRACKING=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_HAVE_DMA_CONTIGUOUS=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
+CONFIG_HAVE_EBPF_JIT=y
+CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
+CONFIG_HAVE_GENERIC_GUP=y
+CONFIG_HAVE_IDE=y
+CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_LD_DEAD_CODE_DATA_ELIMINATION=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_OPTPROBES=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_PERF_REGS=y
+CONFIG_HAVE_PERF_USER_STACK_DUMP=y
+CONFIG_HAVE_PROC_CPU=y
+CONFIG_HAVE_RCU_TABLE_FREE=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_RSEQ=y
+CONFIG_HAVE_SMP=y
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HAVE_UID16=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
+# CONFIG_HID_BIGBEN_FF is not set
+CONFIG_HIGHMEM=y
+CONFIG_HIGHPTE=y
+CONFIG_HOTPLUG_CPU=y
+# CONFIG_HUGETLBFS is not set
+CONFIG_HW_CONSOLE=y
+CONFIG_HZ_FIXED=0
+CONFIG_I2C=y
+# CONFIG_I2C_BCM2708 is not set
+CONFIG_I2C_BOARDINFO=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_INPUT=y
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+CONFIG_IOSCHED_CFQ=y
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_DOMAIN_HIERARCHY=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_WORK=y
+CONFIG_JBD2=y
+CONFIG_KERNEL_GZIP=y
+# CONFIG_KERNEL_XZ is not set
+# CONFIG_LCD_CLASS_DEVICE is not set
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGER_INPUT=y
+CONFIG_LIBFDT=y
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+CONFIG_LOCK_SPIN_ON_OWNER=y
+CONFIG_LOGO=y
+CONFIG_LOGO_LINUX_CLUT224=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_MAC_PARTITION=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MAILBOX=y
+# CONFIG_MAILBOX_TEST is not set
+CONFIG_MAX_RAW_DEVS=256
+CONFIG_MDIO_BCM_UNIMAC=y
+CONFIG_MDIO_BUS=y
+CONFIG_MDIO_DEVICE=y
+CONFIG_MEMFD_CREATE=y
+CONFIG_MEMORY_ISOLATION=y
+CONFIG_MFD_CORE=y
+# CONFIG_MFD_RPISENSE_CORE is not set
+CONFIG_MFD_SYSCON=y
+CONFIG_MICROCHIP_PHY=y
+CONFIG_MIGHT_HAVE_CACHE_L2X0=y
+CONFIG_MIGHT_HAVE_PCI=y
+CONFIG_MIGRATION=y
+CONFIG_MMC=y
+CONFIG_MMC_BCM2835=y
+CONFIG_MMC_BCM2835_DMA=y
+CONFIG_MMC_BCM2835_MMC=y
+CONFIG_MMC_BCM2835_PIO_DMA_BARRIER=2
+CONFIG_MMC_BCM2835_SDHOST=y
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_BLOCK_MINORS=32
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_IO_ACCESSORS=y
+CONFIG_MMC_SDHCI_IPROC=y
+# CONFIG_MMC_SDHCI_PCI is not set
+CONFIG_MMC_SDHCI_PLTFM=y
+# CONFIG_MMC_TIFM_SD is not set
+CONFIG_MODULES_USE_ELF_REL=y
+# CONFIG_MTD is not set
+CONFIG_MUTEX_SPIN_ON_OWNER=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEON=y
+CONFIG_NET_FLOW_LIMIT=y
+CONFIG_NLS=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NO_BOOTMEM=y
+CONFIG_NO_HZ=y
+CONFIG_NO_HZ_COMMON=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NR_CPUS=4
+CONFIG_NVMEM=y
+CONFIG_OABI_COMPAT=y
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_CONFIGFS=y
+CONFIG_OF_DYNAMIC=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_KOBJ=y
+CONFIG_OF_MDIO=y
+CONFIG_OF_NET=y
+CONFIG_OF_OVERLAY=y
+CONFIG_OF_RESERVED_MEM=y
+CONFIG_OF_RESOLVE=y
+CONFIG_OLD_SIGACTION=y
+CONFIG_OLD_SIGSUSPEND3=y
+CONFIG_PADATA=y
+CONFIG_PAGE_OFFSET=0xC0000000
+CONFIG_PCI=y
+# CONFIG_PCIE_BRCMSTB is not set
+CONFIG_PCI_DOMAINS=y
+CONFIG_PCI_DOMAINS_GENERIC=y
+# CONFIG_PCI_V3_SEMI is not set
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PGTABLE_LEVELS=3
+CONFIG_PHYLIB=y
+CONFIG_PHYS_ADDR_T_64BIT=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_BCM2835=y
+CONFIG_PM=y
+CONFIG_PM_CLK=y
+# CONFIG_PM_DEBUG is not set
+CONFIG_PM_GENERIC_DOMAINS=y
+CONFIG_PM_GENERIC_DOMAINS_OF=y
+CONFIG_PM_GENERIC_DOMAINS_SLEEP=y
+CONFIG_PM_SLEEP=y
+CONFIG_PM_SLEEP_SMP=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_PRINTK_TIME=y
+CONFIG_RASPBERRYPI_FIRMWARE=y
+CONFIG_RASPBERRYPI_POWER=y
+CONFIG_RATIONAL=y
+# CONFIG_RAVE_SP_CORE is not set
+CONFIG_RAW_DRIVER=y
+CONFIG_RCU_NEED_SEGCBLIST=y
+CONFIG_RCU_STALL_COMMON=y
+CONFIG_REFCOUNT_FULL=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_REGULATOR_GPIO=y
+CONFIG_RESET_CONTROLLER=y
+CONFIG_RFS_ACCEL=y
+CONFIG_RPS=y
+CONFIG_RWSEM_SPIN_ON_OWNER=y
+CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+CONFIG_SCSI=y
+# CONFIG_SCSI_LOWLEVEL is not set
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_SERIAL_8250_BCM2835AUX=y
+# CONFIG_SERIAL_8250_DMA is not set
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_FSL=y
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=0
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_DEV_BUS=y
+# CONFIG_SERIAL_DEV_CTRL_TTYPORT is not set
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SG_POOL=y
+CONFIG_SMP=y
+CONFIG_SMP_ON_UP=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_SRCU=y
+# CONFIG_STRIP_ASM_SYMS is not set
+CONFIG_SUSPEND=y
+CONFIG_SUSPEND_FREEZER=y
+CONFIG_SWPHY=y
+CONFIG_SWP_EMULATE=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+CONFIG_SYS_SUPPORTS_HUGETLBFS=y
+# CONFIG_TEXTSEARCH is not set
+CONFIG_THERMAL=y
+CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
+CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
+CONFIG_THERMAL_GOV_STEP_WISE=y
+CONFIG_THERMAL_OF=y
+# CONFIG_THUMB2_KERNEL is not set
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_TIMER_OF=y
+CONFIG_TIMER_PROBE=y
+CONFIG_TMPFS_POSIX_ACL=y
+# CONFIG_TOUCHSCREEN_RPI_FT5406 is not set
+CONFIG_TREE_RCU=y
+CONFIG_TREE_SRCU=y
+CONFIG_UEVENT_HELPER_PATH=""
+# CONFIG_UID16 is not set
+CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_COMMON=y
+CONFIG_USB_DWCOTG=y
+# CONFIG_USB_EHCI_HCD is not set
+CONFIG_USB_LAN78XX=y
+CONFIG_USB_NET_DRIVERS=y
+CONFIG_USB_NET_SMSC95XX=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_UAS=y
+CONFIG_USB_USBNET=y
+CONFIG_USE_OF=y
+CONFIG_VFP=y
+CONFIG_VFPv3=y
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_VT_CONSOLE_SLEEP=y
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_WATCHDOG_CORE=y
+CONFIG_XPS=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_BCJ=y
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_ZBOOT_ROM_TEXT=0x0

target/linux/brcm2708/bcm2709/target.mk

@@ -1,13 +1,14 @@
 #
-# Copyright (C) 2015 OpenWrt.org
+# Copyright (C) 2015-2019 OpenWrt.org
 # Copyright (C) 2017 LEDE project
 #
 
 SUBTARGET:=bcm2709
-BOARDNAME:=BCM2709/BCM2710 32 bit based boards
+BOARDNAME:=BCM2709/BCM2710 boards (32 bit)
 CPU_TYPE:=cortex-a7
 CPU_SUBTYPE:=neon-vfpv4
 
 define Target/Description
-	Build firmware image for Broadcom BCM2709/BCM2710 32 bit SoC devices.
+	Build firmware image for BCM2709/BCM2710 devices.
+	This firmware features a 32 bit kernel.
 endef

target/linux/brcm2708/bcm2710/config-4.19

@@ -0,0 +1,556 @@
+CONFIG_64BIT=y
+# CONFIG_AIO is not set
+CONFIG_ARCH_BCM2835=y
+CONFIG_ARCH_CLOCKSOURCE_DATA=y
+CONFIG_ARCH_DMA_ADDR_T_64BIT=y
+CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
+CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
+CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
+CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
+CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
+CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
+CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
+CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
+CONFIG_ARCH_HAS_KCOV=y
+CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
+CONFIG_ARCH_HAS_PTE_SPECIAL=y
+CONFIG_ARCH_HAS_SET_MEMORY=y
+CONFIG_ARCH_HAS_SG_CHAIN=y
+CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
+CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
+CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
+CONFIG_ARCH_HAS_TICK_BROADCAST=y
+CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_INLINE_READ_LOCK=y
+CONFIG_ARCH_INLINE_READ_LOCK_BH=y
+CONFIG_ARCH_INLINE_READ_LOCK_IRQ=y
+CONFIG_ARCH_INLINE_READ_LOCK_IRQSAVE=y
+CONFIG_ARCH_INLINE_READ_UNLOCK=y
+CONFIG_ARCH_INLINE_READ_UNLOCK_BH=y
+CONFIG_ARCH_INLINE_READ_UNLOCK_IRQ=y
+CONFIG_ARCH_INLINE_READ_UNLOCK_IRQRESTORE=y
+CONFIG_ARCH_INLINE_SPIN_LOCK=y
+CONFIG_ARCH_INLINE_SPIN_LOCK_BH=y
+CONFIG_ARCH_INLINE_SPIN_LOCK_IRQ=y
+CONFIG_ARCH_INLINE_SPIN_LOCK_IRQSAVE=y
+CONFIG_ARCH_INLINE_SPIN_TRYLOCK=y
+CONFIG_ARCH_INLINE_SPIN_TRYLOCK_BH=y
+CONFIG_ARCH_INLINE_SPIN_UNLOCK=y
+CONFIG_ARCH_INLINE_SPIN_UNLOCK_BH=y
+CONFIG_ARCH_INLINE_SPIN_UNLOCK_IRQ=y
+CONFIG_ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE=y
+CONFIG_ARCH_INLINE_WRITE_LOCK=y
+CONFIG_ARCH_INLINE_WRITE_LOCK_BH=y
+CONFIG_ARCH_INLINE_WRITE_LOCK_IRQ=y
+CONFIG_ARCH_INLINE_WRITE_LOCK_IRQSAVE=y
+CONFIG_ARCH_INLINE_WRITE_UNLOCK=y
+CONFIG_ARCH_INLINE_WRITE_UNLOCK_BH=y
+CONFIG_ARCH_INLINE_WRITE_UNLOCK_IRQ=y
+CONFIG_ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE=y
+CONFIG_ARCH_MMAP_RND_BITS=18
+CONFIG_ARCH_MMAP_RND_BITS_MAX=24
+CONFIG_ARCH_MMAP_RND_BITS_MIN=18
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
+CONFIG_ARCH_PROC_KCORE_TEXT=y
+CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+CONFIG_ARCH_SPARSEMEM_DEFAULT=y
+CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
+CONFIG_ARCH_SUPPORTS_INT128=y
+CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
+CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
+CONFIG_ARCH_SUPPORTS_UPROBES=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
+CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
+CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
+CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
+CONFIG_ARCH_WANT_FRAME_POINTERS=y
+CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
+# CONFIG_ARGON_MEM is not set
+CONFIG_ARM64=y
+# CONFIG_ARM64_16K_PAGES is not set
+CONFIG_ARM64_4K_PAGES=y
+# CONFIG_ARM64_64K_PAGES is not set
+CONFIG_ARM64_CONT_SHIFT=4
+# CONFIG_ARM64_CRYPTO is not set
+CONFIG_ARM64_ERRATUM_819472=y
+CONFIG_ARM64_ERRATUM_824069=y
+CONFIG_ARM64_ERRATUM_826319=y
+CONFIG_ARM64_ERRATUM_827319=y
+CONFIG_ARM64_ERRATUM_832075=y
+CONFIG_ARM64_ERRATUM_843419=y
+CONFIG_ARM64_HW_AFDBM=y
+# CONFIG_ARM64_LSE_ATOMICS is not set
+CONFIG_ARM64_MODULE_PLTS=y
+CONFIG_ARM64_PAGE_SHIFT=12
+CONFIG_ARM64_PAN=y
+CONFIG_ARM64_PA_BITS=48
+CONFIG_ARM64_PA_BITS_48=y
+# CONFIG_ARM64_PMEM is not set
+# CONFIG_ARM64_PTDUMP_DEBUGFS is not set
+# CONFIG_ARM64_RANDOMIZE_TEXT_OFFSET is not set
+CONFIG_ARM64_SSBD=y
+CONFIG_ARM64_SVE=y
+CONFIG_ARM64_UAO=y
+CONFIG_ARM64_VA_BITS=39
+CONFIG_ARM64_VA_BITS_39=y
+# CONFIG_ARM64_VA_BITS_48 is not set
+CONFIG_ARM64_VHE=y
+CONFIG_ARM_AMBA=y
+CONFIG_ARM_ARCH_TIMER=y
+CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y
+CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND=y
+CONFIG_ARM_BCM2835_CPUFREQ=y
+CONFIG_ARM_GIC=y
+CONFIG_ARM_GIC_V2M=y
+CONFIG_ARM_GIC_V3=y
+CONFIG_ARM_GIC_V3_ITS=y
+CONFIG_ARM_GIC_V3_ITS_PCI=y
+CONFIG_ARM_PSCI_FW=y
+# CONFIG_ARM_SCMI_PROTOCOL is not set
+# CONFIG_ARM_SP805_WATCHDOG is not set
+CONFIG_ARM_TIMER_SP804=y
+CONFIG_AUDIT_ARCH_COMPAT_GENERIC=y
+# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+CONFIG_BCM2708_VCMEM=y
+CONFIG_BCM2835_DEVGPIOMEM=y
+CONFIG_BCM2835_MBOX=y
+CONFIG_BCM2835_POWER=y
+# CONFIG_BCM2835_SMI is not set
+CONFIG_BCM2835_THERMAL=y
+CONFIG_BCM2835_VCHIQ=y
+# CONFIG_BCM2835_VCHIQ_MMAL is not set
+CONFIG_BCM2835_WDT=y
+# CONFIG_BCM_VCIO is not set
+# CONFIG_BCM_VC_SM is not set
+# CONFIG_BCM_VC_SM_CMA is not set
+CONFIG_BCM_VIDEOCORE=y
+# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_MQ_PCI=y
+CONFIG_BLK_SCSI_REQUEST=y
+CONFIG_BRCMSTB_THERMAL=y
+CONFIG_BRCM_CHAR_DRIVERS=y
+# CONFIG_BT_MTKUART is not set
+CONFIG_BUILD_BIN2C=y
+CONFIG_CAVIUM_ERRATUM_22375=y
+CONFIG_CAVIUM_ERRATUM_23154=y
+CONFIG_CAVIUM_ERRATUM_27456=y
+CONFIG_CC_HAS_ASM_GOTO=y
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLKSRC_MMIO=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMA=y
+CONFIG_CMA_ALIGNMENT=8
+CONFIG_CMA_AREAS=7
+# CONFIG_CMA_DEBUG is not set
+# CONFIG_CMA_DEBUGFS is not set
+CONFIG_CMA_SIZE_MBYTES=5
+# CONFIG_CMA_SIZE_SEL_MAX is not set
+CONFIG_CMA_SIZE_SEL_MBYTES=y
+# CONFIG_CMA_SIZE_SEL_MIN is not set
+# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
+CONFIG_COMMON_CLK=y
+CONFIG_COMMON_CLK_XGENE=y
+CONFIG_CONFIGFS_FS=y
+CONFIG_CONSOLE_TRANSLATIONS=y
+# CONFIG_CPUFREQ_DT is not set
+# CONFIG_CPU_BIG_ENDIAN is not set
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
+CONFIG_CPU_FREQ_GOV_ATTR_SET=y
+CONFIG_CPU_FREQ_GOV_COMMON=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_STAT=y
+# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPU_IDLE_GOV_MENU=y
+CONFIG_CPU_PM=y
+CONFIG_CPU_RMAP=y
+# CONFIG_CPU_THERMAL is not set
+CONFIG_CRC16=y
+CONFIG_CRYPTO_AEAD=y
+CONFIG_CRYPTO_AEAD2=y
+CONFIG_CRYPTO_CRC32=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_MANAGER2=y
+CONFIG_CRYPTO_NULL2=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_WORKQUEUE=y
+CONFIG_DCACHE_WORD_ACCESS=y
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEFAULT_CFQ=y
+# CONFIG_DEFAULT_DEADLINE is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
+CONFIG_DMADEVICES=y
+CONFIG_DMA_BCM2708=y
+CONFIG_DMA_BCM2835=y
+CONFIG_DMA_CMA=y
+CONFIG_DMA_DIRECT_OPS=y
+CONFIG_DMA_ENGINE=y
+CONFIG_DMA_OF=y
+CONFIG_DMA_VIRTUAL_CHANNELS=y
+CONFIG_DNOTIFY=y
+CONFIG_DTC=y
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_EDAC_SUPPORT=y
+CONFIG_ENABLE_MUST_CHECK=y
+# CONFIG_EXTCON_ARIZONA is not set
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+# CONFIG_F2FS_CHECK_FS is not set
+CONFIG_F2FS_FS=y
+# CONFIG_F2FS_FS_SECURITY is not set
+CONFIG_F2FS_FS_XATTR=y
+CONFIG_F2FS_STAT_FS=y
+CONFIG_FB=y
+CONFIG_FB_BCM2708=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+CONFIG_FB_CMDLINE=y
+# CONFIG_FB_RPISENSE is not set
+CONFIG_FB_SIMPLE=y
+CONFIG_FIXED_PHY=y
+CONFIG_FIX_EARLYCON_MEM=y
+# CONFIG_FLATMEM_MANUAL is not set
+# CONFIG_FONTS is not set
+CONFIG_FONT_8x16=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_SUPPORT=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+CONFIG_FRAME_POINTER=y
+CONFIG_FREEZER=y
+CONFIG_FSL_ERRATUM_A008585=y
+CONFIG_FS_IOMAP=y
+CONFIG_FS_MBCACHE=y
+CONFIG_FS_POSIX_ACL=y
+CONFIG_GENERIC_ALLOCATOR=y
+CONFIG_GENERIC_ARCH_TOPOLOGY=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
+CONFIG_GENERIC_CPU_AUTOPROBE=y
+CONFIG_GENERIC_CSUM=y
+CONFIG_GENERIC_EARLY_IOREMAP=y
+CONFIG_GENERIC_IDLE_POLL_SETUP=y
+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_GENERIC_IRQ_MIGRATION=y
+CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
+CONFIG_GENERIC_MSI_IRQ=y
+CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_PINCONF=y
+CONFIG_GENERIC_PINCTRL_GROUPS=y
+CONFIG_GENERIC_PINMUX_FUNCTIONS=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+CONFIG_GENERIC_TIME_VSYSCALL=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIOLIB_IRQCHIP=y
+CONFIG_GPIO_BCM_VIRT=y
+CONFIG_GPIO_RASPBERRYPI_EXP=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDEN_BRANCH_PREDICTOR=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
+CONFIG_HAVE_ARCH_AUDITSYSCALL=y
+CONFIG_HAVE_ARCH_BITREVERSE=y
+CONFIG_HAVE_ARCH_HUGE_VMAP=y
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_KASAN=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_PFN_VALID=y
+CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
+CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
+CONFIG_HAVE_ARCH_VMAP_STACK=y
+CONFIG_HAVE_ARM_SMCCC=y
+CONFIG_HAVE_CLK=y
+CONFIG_HAVE_CLK_PREPARE=y
+CONFIG_HAVE_CMPXCHG_DOUBLE=y
+CONFIG_HAVE_CMPXCHG_LOCAL=y
+CONFIG_HAVE_CONTEXT_TRACKING=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_HAVE_DEBUG_BUGVERBOSE=y
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_HAVE_DMA_CONTIGUOUS=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_EBPF_JIT=y
+CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
+CONFIG_HAVE_GENERIC_GUP=y
+CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_MEMORY_PRESENT=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_PATA_PLATFORM=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_PERF_REGS=y
+CONFIG_HAVE_PERF_USER_STACK_DUMP=y
+CONFIG_HAVE_RCU_TABLE_FREE=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_RSEQ=y
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
+# CONFIG_HID_BIGBEN_FF is not set
+CONFIG_HOLES_IN_ZONE=y
+CONFIG_HOTPLUG_CPU=y
+# CONFIG_HUGETLBFS is not set
+CONFIG_HW_CONSOLE=y
+CONFIG_I2C=y
+# CONFIG_I2C_BCM2708 is not set
+CONFIG_I2C_BOARDINFO=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
+CONFIG_INLINE_READ_LOCK=y
+CONFIG_INLINE_READ_LOCK_BH=y
+CONFIG_INLINE_READ_LOCK_IRQ=y
+CONFIG_INLINE_READ_LOCK_IRQSAVE=y
+CONFIG_INLINE_READ_UNLOCK_BH=y
+CONFIG_INLINE_READ_UNLOCK_IRQRESTORE=y
+CONFIG_INLINE_SPIN_LOCK=y
+CONFIG_INLINE_SPIN_LOCK_BH=y
+CONFIG_INLINE_SPIN_LOCK_IRQ=y
+CONFIG_INLINE_SPIN_LOCK_IRQSAVE=y
+CONFIG_INLINE_SPIN_TRYLOCK=y
+CONFIG_INLINE_SPIN_TRYLOCK_BH=y
+CONFIG_INLINE_SPIN_UNLOCK_BH=y
+CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE=y
+CONFIG_INLINE_WRITE_LOCK=y
+CONFIG_INLINE_WRITE_LOCK_BH=y
+CONFIG_INLINE_WRITE_LOCK_IRQ=y
+CONFIG_INLINE_WRITE_LOCK_IRQSAVE=y
+CONFIG_INLINE_WRITE_UNLOCK_BH=y
+CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE=y
+CONFIG_INPUT=y
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+CONFIG_IOSCHED_CFQ=y
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_DOMAIN_HIERARCHY=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_WORK=y
+CONFIG_JBD2=y
+# CONFIG_LCD_CLASS_DEVICE is not set
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGER_INPUT=y
+CONFIG_LIBFDT=y
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+CONFIG_LOCK_SPIN_ON_OWNER=y
+CONFIG_LOGO=y
+CONFIG_LOGO_LINUX_CLUT224=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_MAC_PARTITION=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MAILBOX=y
+# CONFIG_MAILBOX_TEST is not set
+CONFIG_MAX_RAW_DEVS=256
+CONFIG_MDIO_BUS=y
+CONFIG_MDIO_DEVICE=y
+CONFIG_MEMFD_CREATE=y
+CONFIG_MEMORY_ISOLATION=y
+CONFIG_MFD_CORE=y
+# CONFIG_MFD_RPISENSE_CORE is not set
+CONFIG_MFD_SYSCON=y
+CONFIG_MICROCHIP_PHY=y
+CONFIG_MIGRATION=y
+CONFIG_MMC=y
+CONFIG_MMC_BCM2835=y
+CONFIG_MMC_BCM2835_DMA=y
+CONFIG_MMC_BCM2835_MMC=y
+CONFIG_MMC_BCM2835_PIO_DMA_BARRIER=2
+CONFIG_MMC_BCM2835_SDHOST=y
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_BLOCK_MINORS=32
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_IO_ACCESSORS=y
+CONFIG_MMC_SDHCI_IPROC=y
+# CONFIG_MMC_SDHCI_PCI is not set
+CONFIG_MMC_SDHCI_PLTFM=y
+# CONFIG_MMC_TIFM_SD is not set
+CONFIG_MODULES_USE_ELF_RELA=y
+# CONFIG_MTD is not set
+CONFIG_MUTEX_SPIN_ON_OWNER=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_SG_DMA_LENGTH=y
+CONFIG_NET_FLOW_LIMIT=y
+CONFIG_NLS=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NO_BOOTMEM=y
+CONFIG_NO_HZ=y
+CONFIG_NO_HZ_COMMON=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NR_CPUS=4
+# CONFIG_NUMA is not set
+CONFIG_NVMEM=y
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_CONFIGFS=y
+CONFIG_OF_DYNAMIC=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_KOBJ=y
+CONFIG_OF_MDIO=y
+CONFIG_OF_NET=y
+CONFIG_OF_OVERLAY=y
+CONFIG_OF_RESERVED_MEM=y
+CONFIG_OF_RESOLVE=y
+CONFIG_PADATA=y
+CONFIG_PARTITION_PERCPU=y
+CONFIG_PCI=y
+# CONFIG_PCIE_BRCMSTB is not set
+CONFIG_PCI_DOMAINS=y
+CONFIG_PCI_DOMAINS_GENERIC=y
+CONFIG_PCI_MSI=y
+CONFIG_PCI_MSI_IRQ_DOMAIN=y
+CONFIG_PGTABLE_LEVELS=3
+CONFIG_PHYLIB=y
+CONFIG_PHYS_ADDR_T_64BIT=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_BCM2835=y
+CONFIG_PM=y
+CONFIG_PM_CLK=y
+# CONFIG_PM_DEBUG is not set
+CONFIG_PM_GENERIC_DOMAINS=y
+CONFIG_PM_GENERIC_DOMAINS_OF=y
+CONFIG_PM_GENERIC_DOMAINS_SLEEP=y
+CONFIG_PM_SLEEP=y
+CONFIG_PM_SLEEP_SMP=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_PRINTK_TIME=y
+CONFIG_QUEUED_RWLOCKS=y
+CONFIG_QUEUED_SPINLOCKS=y
+# CONFIG_RANDOMIZE_BASE is not set
+CONFIG_RASPBERRYPI_FIRMWARE=y
+CONFIG_RASPBERRYPI_POWER=y
+CONFIG_RATIONAL=y
+# CONFIG_RAVE_SP_CORE is not set
+CONFIG_RAW_DRIVER=y
+CONFIG_RCU_NEED_SEGCBLIST=y
+CONFIG_RCU_STALL_COMMON=y
+CONFIG_REFCOUNT_FULL=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_REGULATOR_GPIO=y
+CONFIG_RESET_CONTROLLER=y
+CONFIG_RFS_ACCEL=y
+CONFIG_RPS=y
+CONFIG_RWSEM_SPIN_ON_OWNER=y
+CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+CONFIG_SCSI=y
+# CONFIG_SCSI_LOWLEVEL is not set
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_SERIAL_8250_BCM2835AUX=y
+# CONFIG_SERIAL_8250_DMA is not set
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_FSL=y
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=0
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_DEV_BUS=y
+# CONFIG_SERIAL_DEV_CTRL_TTYPORT is not set
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SG_POOL=y
+CONFIG_SMP=y
+CONFIG_SPARSEMEM=y
+CONFIG_SPARSEMEM_EXTREME=y
+CONFIG_SPARSEMEM_MANUAL=y
+CONFIG_SPARSEMEM_VMEMMAP=y
+CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_SRCU=y
+# CONFIG_STRIP_ASM_SYMS is not set
+CONFIG_SUSPEND=y
+CONFIG_SUSPEND_FREEZER=y
+CONFIG_SWIOTLB=y
+CONFIG_SWPHY=y
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+CONFIG_SYS_SUPPORTS_HUGETLBFS=y
+# CONFIG_TEXTSEARCH is not set
+CONFIG_THERMAL=y
+CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
+CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
+CONFIG_THERMAL_GOV_STEP_WISE=y
+CONFIG_THERMAL_OF=y
+CONFIG_THREAD_INFO_IN_TASK=y
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_TIMER_OF=y
+CONFIG_TIMER_PROBE=y
+CONFIG_TMPFS_POSIX_ACL=y
+# CONFIG_TOUCHSCREEN_RPI_FT5406 is not set
+CONFIG_TREE_RCU=y
+CONFIG_TREE_SRCU=y
+CONFIG_UEVENT_HELPER_PATH=""
+CONFIG_UNMAP_KERNEL_AT_EL0=y
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_COMMON=y
+CONFIG_USB_DWCOTG=y
+# CONFIG_USB_EHCI_HCD is not set
+CONFIG_USB_LAN78XX=y
+CONFIG_USB_NET_DRIVERS=y
+CONFIG_USB_NET_SMSC95XX=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_UAS=y
+CONFIG_USB_USBNET=y
+CONFIG_VMAP_STACK=y
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_VT_CONSOLE_SLEEP=y
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_WATCHDOG_CORE=y
+CONFIG_XPS=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_BCJ=y
+CONFIG_ZONE_DMA32=y

target/linux/brcm2708/bcm2710/target.mk

@@ -1,13 +1,14 @@
 #
-# Copyright (C) 2016 OpenWrt.org
+# Copyright (C) 2016-2019 OpenWrt.org
 # Copyright (C) 2017 LEDE project
 #
 
 ARCH:=aarch64
 SUBTARGET:=bcm2710
-BOARDNAME:=BCM2710 64 bit based boards
+BOARDNAME:=BCM2710 boards (64 bit)
 CPU_TYPE:=cortex-a53
 
 define Target/Description
-	Build firmware image for Broadcom BCM2710 64 bit SoC devices.
+	Build firmware image for BCM2710 devices.
+	This firmware features a 64 bit kernel.
 endef

target/linux/brcm2708/image/Makefile

@@ -58,7 +58,7 @@ endef
 
 define Device/rpi
   DEVICE_TITLE := Raspberry Pi B/B+/CM/Zero/ZeroW
-  DEVICE_DTS := bcm2708-rpi-b bcm2708-rpi-b-plus bcm2708-rpi-cm bcm2708-rpi-0-w
+  DEVICE_DTS := bcm2708-rpi-b bcm2708-rpi-b-plus bcm2708-rpi-cm bcm2708-rpi-zero bcm2708-rpi-zero-w
   SUPPORTED_DEVICES := \
 	rpi-b rpi-b-plus rpi-cm rpi-zero rpi-zero-w \
 	raspberrypi,model-b raspberrypi,model-b-plus raspberrypi,model-b-rev2 \
@@ -86,8 +86,8 @@ endif
 
 define Device/rpi-3
   KERNEL_IMG := kernel8.img
-  DEVICE_TITLE := Raspberry Pi 3B/3B+
-  DEVICE_DTS := broadcom/bcm2710-rpi-3-b broadcom/bcm2710-rpi-3-b-plus
+  DEVICE_TITLE := Raspberry Pi 3B/3B+/3CM
+  DEVICE_DTS := broadcom/bcm2710-rpi-3-b broadcom/bcm2710-rpi-3-b-plus broadcom/bcm2710-rpi-cm3
   SUPPORTED_DEVICES := \
 	rpi-3-b rpi-3-b-plus \
 	raspberrypi,3-model-b raspberrypi,3-model-b-plus \

target/linux/brcm2708/image/cmdline.txt

@@ -1 +1 @@
-dwc_otg.lpm_enable=0 console=serial0,115200 kgdboc=serial0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=squashfs,ext4 rootwait
+console=serial0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=squashfs,ext4 rootwait

target/linux/brcm2708/image/config.txt

@@ -1,961 +1,8 @@
 ################################################################################
-##  Raspberry Pi Configuration Settings
-##
-##  Revision 14, 2012/10/22
-##
-##  Details taken from the eLinux wiki
-##  For up-to-date information please refer to wiki page.
-##
-##  Wiki Location : http://elinux.org/RPi_config.txt
-##
-##
-##  Description:
-##    Details of each setting are described with each section that begins with
-##    a double hashed comment ('##')
-##    It is up to the user to remove the single hashed comment ('#') from each
-##    option they want to enable, and to set the specific value of that option.
-##
-##  WARNING: Setting the following combination of parameters will set a
-##  permanent bit within the SOC and your warranty is void.
-##    over_voltage>0, and at least one of the following:
-##      force_turbo=1
-##      current_limit_override=0x5A000020
-##      temp_limit>85
-##
-##  Overclock settings will be disabled at runtime if the SoC reaches temp_limit
-##
+# Bootloader configuration - config.txt
 ################################################################################
 
 ################################################################################
-##  Standard Definition Video Settings
+# For overclocking and various other settings, see:
+# https://www.raspberrypi.org/documentation/configuration/config-txt/README.md
 ################################################################################
-
-## sdtv_mode
-##     defines the TV standard for composite output
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Normal NTSC (Default)
-##     1        Japanese version of NTSC - no pedestal
-##     2        Normal PAL
-##     3        Brazilian version of PAL - 525/60 rather than 625/50, different
-##              subcarrier
-##
-#sdtv_mode=0
-
-## sdtv_aspect
-##     defines the aspect ratio for composite output
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     1        4:3 (Default)
-##     2        14:9
-##     3        16:9
-##
-#sdtv_aspect=1
-
-## sdtv_disable_colourburst
-##     Disables colour burst on composite output. The picture will be
-##     monochrome, but possibly sharper
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Colour burst is enabled (Default)
-##     1        Colour burst is disabled
-##
-#sdtv_disable_colourburst=1
-
-################################################################################
-##  High Definition Video Settings
-################################################################################
-
-## hdmi_safe
-##     Use "safe mode" settings to try to boot with maximum hdmi compatibility.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Disabled (Default)
-##     1        Enabled (this does: hdmi_force_hotplug=1, config_hdmi_boost=4,
-##                                  hdmi_group=1, hdmi_mode=1,
-##                                  disable_overscan=0)
-##
-#hdmi_safe=1
-
-## hdmi_force_hotplug
-##     Pretends HDMI hotplug signal is asserted so it appears a HDMI display
-##     is attached
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Disabled (Default)
-##     1        Use HDMI mode even if no HDMI monitor is detected
-##
-#hdmi_force_hotplug=1
-
-## hdmi_ignore_hotplug
-##     Pretends HDMI hotplug signal is not asserted so it appears a HDMI
-##     display is not attached
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Disabled (Default)
-##     1        Use composite mode even if HDMI monitor is detected
-##
-#hdmi_ignore_hotplug=1 
-
-## hdmi_drive
-##     chooses between HDMI and DVI modes
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     1        Normal DVI mode (No sound)
-##     2        Normal HDMI mode (Sound will be sent if supported and enabled)
-##
-#hdmi_drive=2
-
-## hdmi_ignore_edid
-##     Enables the ignoring of EDID/display data
-##
-#hdmi_ignore_edid=0xa5000080
-
-## hdmi_edid_file
-##     Read the EDID data from the edid.dat file instead of from the attached
-##     device
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Read EDID data from attached device (Default)
-##     1        Read EDID data from edid.txt file
-##
-#hdmi_edid_file=1
-
-## hdmi_force_edid_audio
-##     Pretends all audio formats are supported by display, allowing
-##     passthrough of DTS/AC3 even when not reported as supported.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Use EDID provided values (Default)
-##     1        Pretend all audio formats are supported
-##
-#hdmi_force_edid_audio=1
-
-## avoid_edid_fuzzy_match
-##     Avoid fuzzy matching of modes described in edid.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Use fuzzy matching (Default)
-##     1        Avoid fuzzy matching
-##
-#avoid_edid_fuzzy_match=1
-
-## hdmi_group
-##     Defines the HDMI type
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Use the preferred group reported by the edid (Default)
-##     1        CEA
-##     2        DMT
-##
-#hdmi_group=1
-
-## hdmi_mode
-##     defines screen resolution in CEA or DMT format
-##
-##     H means 16:9 variant (of a normally 4:3 mode).
-##     2x means pixel doubled (i.e. higher clock rate, with each pixel repeated
-##                                  twice)
-##     4x means pixel quadrupled (i.e. higher clock rate, with each pixel
-##                                     repeated four times)
-##     reduced blanking means fewer bytes are used for blanking within the data
-##                      stream (i.e. lower clock rate, with fewer wasted bytes)
-##
-##     Value    hdmi_group=CEA                  hdmi_group=DMT
-##     -------------------------------------------------------------------------
-##     1        VGA                             640x350   85Hz
-##     2        480p  60Hz                      640x400   85Hz
-##     3        480p  60Hz  H                   720x400   85Hz
-##     4        720p  60Hz                      640x480   60Hz
-##     5        1080i 60Hz                      640x480   72Hz
-##     6        480i  60Hz                      640x480   75Hz
-##     7        480i  60Hz  H                   640x480   85Hz
-##     8        240p  60Hz                      800x600   56Hz
-##     9        240p  60Hz  H                   800x600   60Hz
-##     10       480i  60Hz  4x                  800x600   72Hz
-##     11       480i  60Hz  4x H                800x600   75Hz
-##     12       240p  60Hz  4x                  800x600   85Hz
-##     13       240p  60Hz  4x H                800x600   120Hz
-##     14       480p  60Hz  2x                  848x480   60Hz
-##     15       480p  60Hz  2x H                1024x768  43Hz  DO NOT USE
-##     16       1080p 60Hz                      1024x768  60Hz
-##     17       576p  50Hz                      1024x768  70Hz
-##     18       576p  50Hz  H                   1024x768  75Hz
-##     19       720p  50Hz                      1024x768  85Hz
-##     20       1080i 50Hz                      1024x768  120Hz
-##     21       576i  50Hz                      1152x864  75Hz
-##     22       576i  50Hz  H                   1280x768        reduced blanking
-##     23       288p  50Hz                      1280x768  60Hz
-##     24       288p  50Hz  H                   1280x768  75Hz
-##     25       576i  50Hz  4x                  1280x768  85Hz
-##     26       576i  50Hz  4x H                1280x768  120Hz reduced blanking
-##     27       288p  50Hz  4x                  1280x800        reduced blanking
-##     28       288p  50Hz  4x H                1280x800  60Hz
-##     29       576p  50Hz  2x                  1280x800  75Hz
-##     30       576p  50Hz  2x H                1280x800  85Hz
-##     31       1080p 50Hz                      1280x800  120Hz reduced blanking
-##     32       1080p 24Hz                      1280x960  60Hz
-##     33       1080p 25Hz                      1280x960  85Hz
-##     34       1080p 30Hz                      1280x960  120Hz reduced blanking
-##     35       480p  60Hz  4x                  1280x1024 60Hz
-##     36       480p  60Hz  4x H                1280x1024 75Hz
-##     37       576p  50Hz  4x                  1280x1024 85Hz
-##     38       576p  50Hz  4x H                1280x1024 120Hz reduced blanking
-##     39       1080i 50Hz  reduced blanking    1360x768  60Hz
-##     40       1080i 100Hz                     1360x768  120Hz reduced blanking
-##     41       720p  100Hz                     1400x1050       reduced blanking
-##     42       576p  100Hz                     1400x1050 60Hz
-##     43       576p  100Hz H                   1400x1050 75Hz
-##     44       576i  100Hz                     1400x1050 85Hz
-##     45       576i  100Hz H                   1400x1050 120Hz reduced blanking
-##     46       1080i 120Hz                     1440x900        reduced blanking
-##     47       720p  120Hz                     1440x900  60Hz
-##     48       480p  120Hz                     1440x900  75Hz
-##     49       480p  120Hz H                   1440x900  85Hz
-##     50       480i  120Hz                     1440x900  120Hz reduced blanking
-##     51       480i  120Hz H                   1600x1200 60Hz
-##     52       576p  200Hz                     1600x1200 65Hz
-##     53       576p  200Hz H                   1600x1200 70Hz
-##     54       576i  200Hz                     1600x1200 75Hz
-##     55       576i  200Hz H                   1600x1200 85Hz
-##     56       480p  240Hz                     1600x1200 120Hz reduced blanking
-##     57       480p  240Hz H                   1680x1050       reduced blanking
-##     58       480i  240Hz                     1680x1050 60Hz
-##     59       480i  240Hz H                   1680x1050 75Hz
-##     60                                       1680x1050 85Hz
-##     61                                       1680x1050 120Hz reduced blanking
-##     62                                       1792x1344 60Hz
-##     63                                       1792x1344 75Hz
-##     64                                       1792x1344 120Hz reduced blanking
-##     65                                       1856x1392 60Hz
-##     66                                       1856x1392 75Hz
-##     67                                       1856x1392 120Hz reduced blanking
-##     68                                       1920x1200       reduced blanking
-##     69                                       1920x1200 60Hz
-##     70                                       1920x1200 75Hz
-##     71                                       1920x1200 85Hz
-##     72                                       1920x1200 120Hz reduced blanking
-##     73                                       1920x1440 60Hz
-##     74                                       1920x1440 75Hz
-##     75                                       1920x1440 120Hz reduced blanking
-##     76                                       2560x1600       reduced blanking
-##     77                                       2560x1600 60Hz
-##     78                                       2560x1600 75Hz
-##     79                                       2560x1600 85Hz
-##     80                                       2560x1600 120Hz reduced blanking
-##     81                                       1366x768  60Hz
-##     82                                       1080p     60Hz
-##     83                                       1600x900        reduced blanking
-##     84                                       2048x1152       reduced blanking
-##     85                                       720p      60Hz
-##     86                                       1366x768        reduced blanking
-##
-#hdmi_mode=1
-
-## config_hdmi_boost
-##     configure the signal strength of the HDMI interface.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        (Default)
-##     1
-##     2
-##     3
-##     4        Try if you have interference issues with HDMI
-##     5
-##     6
-##     7        Maximum
-##
-#config_hdmi_boost=0
-
-## hdmi_ignore_cec_init
-##     Doesn't sent initial active source message.  Avoids bringing
-##     (CEC enabled) TV out of standby and channel switch when rebooting.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Normal behaviour (Default)
-##     1        Doesn't sent initial active source message
-##
-#hdmi_ignore_cec_init=1
-
-## hdmi_ignore_cec
-##     Pretends CEC is not supported at all by TV.
-##     No CEC functions will be supported.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Normal behaviour (Default)
-##     1        Pretend CEC is not supported by TV
-##
-#hdmi_ignore_cec=1
-
-################################################################################
-##  Overscan Video Settings
-################################################################################
-
-## overscan_left
-##     Number of pixels to skip on left
-##
-#overscan_left=0
-
-## overscan_right
-##     Number of pixels to skip on right
-##
-#overscan_right=0
-
-## overscan_top
-##     Number of pixels to skip on top
-##
-#overscan_top=0
-
-## overscan_bottom
-##     Number of pixels to skip on bottom
-##
-#overscan_bottom=0
-
-## disable_overscan
-##     Set to 1 to disable overscan
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Overscan Enabled (Default)
-##     1        Overscan Disabled
-##
-#disable_overscan=1
-
-################################################################################
-##  Framebuffer Video Settings
-################################################################################
-
-## framebuffer_width
-##     Console framebuffer width in pixels. Default is display width minus
-##     overscan.
-##
-#framebuffer_width=0
-
-## framebuffer_height
-##     Console framebuffer height in pixels. Default is display height minus
-##     overscan.
-##
-#framebuffer_height=0
-
-## framebuffer_depth
-##     Console framebuffer depth in bits per pixel.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     8        Valid, but default RGB palette makes an unreadable screen
-##     16       (Default)
-##     24       Looks better but has corruption issues as of 2012/06/15
-##     32       Has no corruption issues but needs framebuffer_ignore_alpha=1
-##              and shows the wrong colors as of 2012/06/15
-##
-#framebuffer_depth=16
-
-## framebuffer_ignore_alpha
-##     Set to 1 to disable alpha channel. Helps with 32bit.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Enable Alpha Channel (Default)
-##     1        Disable Alpha Channel
-##
-#framebuffer_ignore_alpha=0
-
-################################################################################
-##  General Video Settings
-################################################################################
-
-## display_rotate
-##     Rotate the display clockwise or flip the display.
-##     The 90 and 270 degrees rotation options require additional memory on GPU,
-##     so won't work with the 16M GPU split.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        0 degrees (Default)
-##     1        90 degrees
-##     2        180 degrees
-##     3        270 degrees
-##     0x10000  Horizontal flip
-##     0x20000  Vertical flip
-##
-#display_rotate=0
-
-################################################################################
-##  Licensed Codecs
-##
-##  Hardware decoding of additional codecs can be enabled by purchasing a
-##  license that is locked to the CPU serial number of your Raspberry Pi.
-##
-##  Up to 8 licenses per CODEC can be specified as a comma seperated list.
-##
-################################################################################
-
-## decode_MPG2
-##     License key to allow hardware MPEG-2 decoding.
-##
-#decode_MPG2=0x12345678
-
-## decode_WVC1
-##     License key to allow hardware VC-1 decoding.
-##
-#decode_WVC1=0x12345678
-
-################################################################################
-##  Test Settings
-################################################################################
-
-## test_mode
-##     Enable test sound/image during boot for manufacturing test.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Disable Test Mod (Default)
-##     1        Enable Test Mode
-##
-#test_mode=0
-
-################################################################################
-##  Memory Settings
-################################################################################
-
-## disable_l2cache
-##     Disable arm access to GPU's L2 cache. Needs corresponding L2 disabled
-##     kernel.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Enable L2 Cache (Default)
-##     1        Disable L2 cache
-##
-#disable_l2cache=0
-
-## gpu_mem
-##     GPU memory allocation in MB for all board revisions.
-##
-##     Default 64
-##
-#gpu_mem=128
-
-## gpu_mem_256
-##     GPU memory allocation in MB for 256MB board revision.
-##     This option overrides gpu_mem.
-##
-#gpu_mem_256=128
-
-## gpu_mem_512
-##     GPU memory allocation in MB for 512MB board revision.
-##     This option overrides gpu_mem.
-##
-#gpu_mem_512=128
-
-## gpu_mem_1024
-##     GPU memory allocation in MB for 1024MB board revision.
-##     This option overrides gpu_mem.
-##
-#gpu_mem_1024=128
-
-################################################################################
-##  Boot Option Settings
-################################################################################
-
-## disable_commandline_tags
-##     Stop start.elf from filling in ATAGS (memory from 0x100) before
-##     launching kernel
-##
-#disable_commandline_tags=2
-
-## enable_uart
-##     Enables or disables uart pin multiplexing
-##     Raspberry Pi 1/2: if unset, uart is enabled by default
-##     Raspberry Pi 3: if unset uart is disabled by default
-##
-enable_uart=1
-
-## cmdline (string)
-##     Command line parameters. Can be used instead of cmdline.txt file
-##
-#cmdline=""
-
-## kernel (string)
-##     Alternative name to use when loading kernel.
-##
-#kernel=""
-
-## kernel_address
-##     Address to load kernel.img file at
-##
-#kernel_address=0x8000
-
-## ramfsfile (string)
-##     ramfs file to load
-##
-#ramfsfile=""
-
-## ramfsaddr
-##     Address to load ramfs file at
-##
-#ramfsaddr=0x00000000
-
-## initramfs (string address)
-##     ramfs file and address to load it at (it's like ramfsfile+ramfsaddr in
-##     one option).
-##
-##     NOTE: this option uses different syntax than all other options - you
-##           should not use "=" character here.
-##
-#initramfs initramf.gz 0x00800000
-
-## device_tree_address
-##     Address to load device_tree at
-##
-#device_tree_address=0x100
-
-## init_uart_baud
-##     Initial uart baud rate.
-##
-##     Default 115200
-##
-#init_uart_baud=115200
-
-## init_uart_clock
-##     Initial uart clock.
-##
-##     Default 3000000 (3MHz)
-##
-#init_uart_clock=3000000
-
-## init_emmc_clock
-##     Initial emmc clock, increasing this can speedup your SD-card.
-##
-##     Default 100000000 (100mhz)
-##
-#init_emmc_clock=100000000
-
-## boot_delay
-##     Wait for a given number of seconds in start.elf before loading
-##     kernel.img.
-##
-##     delay = (1000 * boot_delay) + boot_delay_ms
-##
-##     Default 1
-##
-#boot_delay=0
-
-## boot_delay_ms
-##     Wait for a given number of milliseconds in start.elf before loading
-##     kernel.img.
-##
-##     delay = (1000 * boot_delay) + boot_delay_ms
-##
-##     Default 0
-##
-#boot_delay_ms=0
-
-## avoid_safe_mode
-##     Adding a jumper between pins 5 & 6 of P1 enables a recovery Safe Mode.
-##     If pins 5 & 6 are used for connecting to external devices (e.g. GPIO),
-##     then this setting can be used to ensure Safe Mode is not triggered.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Respect Safe Mode input (Default)
-##     1        Ignore Safe Mode input
-##
-#avoid_safe_mode=1
-
-################################################################################
-##  Overclocking Settings
-##
-##  ARM, SDRAM and GPU each have their own PLLs and can have unrelated
-##  frequencies.
-##
-##  The GPU core, h264, v3d and isp share a PLL, so need to have related
-##  frequencies.
-##  pll_freq = floor(2400 / (2 * core_freq)) * (2 * core_freq)
-##  gpu_freq = pll_freq / [even number]
-##
-##  The effective gpu_freq is automatically rounded to nearest even integer, so
-##  asking for core_freq = 500 and gpu_freq = 300 will result in divisor of
-##  2000/300 = 6.666 => 6 and so 333.33MHz.
-##
-##
-##  Standard Profiles:
-##                  arm_freq    core_freq    sdram_freq    over_voltage
-##     -------------------------------------------------------------------------
-##     None         700         250          400           0
-##     Modest       800         300          400           0
-##     Medium       900         333          450           2
-##     High         950         450          450           6
-##     Turbo        1000        500          500           6
-##
-################################################################################
-
-## force_turbo
-##     Control the kernel "ondemand" governor. It has no effect if no overclock
-##     settings are specified.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Enable dynamic clocks and voltage for the ARM core, GPU core and
-##              SDRAM (Default).
-##              Overclocking of h264_freq, v3d_freq and isp_freq is ignored.
-##     1        Disable dynamic clocks and voltage for the ARM core, GPU core
-##              and SDRAM.
-##              Overclocking of h264_freq, v3d_freq and isp_freq is allowed.
-##
-#force_turbo=0
-
-## initial_turbo
-##     Enables turbo mode from boot for the given value in seconds (up to 60)
-##     or until cpufreq sets a frequency. Can help with sdcard corruption if
-##     overclocked.
-##
-##     Default 0
-##
-#initial_turbo=0
-
-## temp_limit
-##     Overheat protection. Sets clocks and voltages to default when the SoC
-##     reaches this Celsius value.
-##     Setting this higher than default voids warranty.
-##
-##     Default 85
-##
-#temp_limit=85
-
-## arm_freq
-##     Frequency of ARM in MHz.
-##
-##     Default 700.
-##
-#arm_freq=700
-
-## arm_freq_min
-##     Minimum frequency of ARM in MHz (used for dynamic clocking).
-##
-##     Default 700.
-##
-#arm_freq_min=700
-
-## gpu_freq
-##     Sets core_freq, h264_freq, isp_freq, v3d_freq together.
-##
-##     Default 250.
-##
-#gpu_freq=250
-
-## core_freq
-##     Frequency of GPU processor core in MHz. It has an impact on ARM
-##     performance since it drives L2 cache.
-##
-##     Default 250.
-##
-#core_freq=250
-
-## core_freq_min
-##     Minimum frequency of GPU processor core in MHz (used for dynamic
-##     clocking). It has an impact on ARM performance since it drives L2 cache.
-##
-##     Default 250.
-##
-#core_freq_min=250
-
-## h264_freq
-##     Frequency of hardware video block in MHz.
-##
-##     Default 250.
-##
-#h264_freq=250
-
-## isp_freq
-##     Frequency of image sensor pipeline block in MHz.
-##
-##     Default 250.
-##
-#isp_freq=250
-
-## v3d_freq
-##     Frequency of 3D block in MHz.
-##
-##     Default 250.
-##
-#v3d_freq=250
-
-## sdram_freq
-##     Frequency of SDRAM in MHz.
-##
-##     Default 400.
-##
-#sdram_freq=400
-
-## sdram_freq_min
-##     Minimum frequency of SDRAM in MHz (used for dynamic clocking).
-##
-##     Default 400.
-##
-#sdram_freq_min=400
-
-## avoid_pwm_pll
-##     Unlink core_freq from the rest of the gpu. Analog audio should still
-##     work, but from a fractional divider, so lower quality.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     0        Linked core_freq (Default)
-##     1        Unlinked core_freq
-##
-#avoid_pwm_pll=1
-
-################################################################################
-##  Voltage Settings
-################################################################################
-
-## current_limit_override
-##     Disables SMPS current limit protection. Can help if you are currently
-##     hitting a reboot failure when overclocking too high.
-##
-#current_limit_override=0x5A000020
-
-## over_voltage
-##     ARM/GPU core voltage adjust.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     -16      0.8   V
-##     -15      0.825 V
-##     -14      0.85  V
-##     -13      0.875 V
-##     -12      0.9   V
-##     -11      0.925 V
-##     -10      0.95  V
-##     -9       0.975 V
-##     -8       1.0   V
-##     -7       1.025 V
-##     -6       1.05  V
-##     -5       1.075 V
-##     -4       1.1   V
-##     -3       1.125 V
-##     -2       1.15  V
-##     -1       1.175 V
-##     0        1.2   V (Default)
-##     1        1.225 V
-##     2        1.25  V
-##     3        1.275 V
-##     4        1.3   V
-##     5        1.325 V
-##     6        1.35  V
-##     7        1.375 V (requires force_turbo=1)
-##     8        1.4   V (requires force_turbo=1)
-##
-#over_voltage=0
-
-## over_voltage_min
-##     Minimum ARM/GPU core voltage adjust (used for dynamic clocking).
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     -16      0.8   V
-##     -15      0.825 V
-##     -14      0.85  V
-##     -13      0.875 V
-##     -12      0.9   V
-##     -11      0.925 V
-##     -10      0.95  V
-##     -9       0.975 V
-##     -8       1.0   V
-##     -7       1.025 V
-##     -6       1.05  V
-##     -5       1.075 V
-##     -4       1.1   V
-##     -3       1.125 V
-##     -2       1.15  V
-##     -1       1.175 V
-##     0        1.2   V (Default)
-##     1        1.225 V
-##     2        1.25  V
-##     3        1.275 V
-##     4        1.3   V
-##     5        1.325 V
-##     6        1.35  V
-##     7        1.375 V (requires force_turbo=1)
-##     8        1.4   V (requires force_turbo=1)
-##
-#over_voltage_min=0
-
-## over_voltage_sdram
-##     Sets over_voltage_sdram_c, over_voltage_sdram_i, over_voltage_sdram_p
-##     together
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     -16      0.8   V
-##     -15      0.825 V
-##     -14      0.85  V
-##     -13      0.875 V
-##     -12      0.9   V
-##     -11      0.925 V
-##     -10      0.95  V
-##     -9       0.975 V
-##     -8       1.0   V
-##     -7       1.025 V
-##     -6       1.05  V
-##     -5       1.075 V
-##     -4       1.1   V
-##     -3       1.125 V
-##     -2       1.15  V
-##     -1       1.175 V
-##     0        1.2   V (Default)
-##     1        1.225 V
-##     2        1.25  V
-##     3        1.275 V
-##     4        1.3   V
-##     5        1.325 V
-##     6        1.35  V
-##     7        1.375 V
-##     8        1.4   V
-##
-#over_voltage_sdram=0
-
-## over_voltage_sdram_c
-##     SDRAM controller voltage adjust.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     -16      0.8   V
-##     -15      0.825 V
-##     -14      0.85  V
-##     -13      0.875 V
-##     -12      0.9   V
-##     -11      0.925 V
-##     -10      0.95  V
-##     -9       0.975 V
-##     -8       1.0   V
-##     -7       1.025 V
-##     -6       1.05  V
-##     -5       1.075 V
-##     -4       1.1   V
-##     -3       1.125 V
-##     -2       1.15  V
-##     -1       1.175 V
-##     0        1.2   V (Default)
-##     1        1.225 V
-##     2        1.25  V
-##     3        1.275 V
-##     4        1.3   V
-##     5        1.325 V
-##     6        1.35  V
-##     7        1.375 V
-##     8        1.4   V
-##
-#over_voltage_sdram_c=0
-
-## over_voltage_sdram_i
-##     SDRAM I/O voltage adjust.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     -16      0.8   V
-##     -15      0.825 V
-##     -14      0.85  V
-##     -13      0.875 V
-##     -12      0.9   V
-##     -11      0.925 V
-##     -10      0.95  V
-##     -9       0.975 V
-##     -8       1.0   V
-##     -7       1.025 V
-##     -6       1.05  V
-##     -5       1.075 V
-##     -4       1.1   V
-##     -3       1.125 V
-##     -2       1.15  V
-##     -1       1.175 V
-##     0        1.2   V (Default)
-##     1        1.225 V
-##     2        1.25  V
-##     3        1.275 V
-##     4        1.3   V
-##     5        1.325 V
-##     6        1.35  V
-##     7        1.375 V
-##     8        1.4   V
-##
-#over_voltage_sdram_i=0
-
-## over_voltage_sdram_p
-##     SDRAM phy voltage adjust.
-##
-##     Value    Description
-##     -------------------------------------------------------------------------
-##     -16      0.8   V
-##     -15      0.825 V
-##     -14      0.85  V
-##     -13      0.875 V
-##     -12      0.9   V
-##     -11      0.925 V
-##     -10      0.95  V
-##     -9       0.975 V
-##     -8       1.0   V
-##     -7       1.025 V
-##     -6       1.05  V
-##     -5       1.075 V
-##     -4       1.1   V
-##     -3       1.125 V
-##     -2       1.15  V
-##     -1       1.175 V
-##     0        1.2   V (Default)
-##     1        1.225 V
-##     2        1.25  V
-##     3        1.275 V
-##     4        1.3   V
-##     5        1.325 V
-##     6        1.35  V
-##     7        1.375 V
-##     8        1.4   V
-##
-#over_voltage_sdram_p=0
-
-################################################################################
-##  Device Tree Settings
-################################################################################
-
-dtparam=random=on
-dtparam=watchdog=on
-dtparam=audio=on
-dtparam=i2c0=on
-dtparam=i2c1=on
-dtparam=spi=on
-
-#dtoverlay=adau1977-adc
-#dtoverlay=allo-piano-dac-pcm512x-audio
-#dtoverlay=audioinjector-wm8731-audio
-#dtoverlay=dionaudio-loco
-#dtoverlay=hifiberry-amp
-#dtoverlay=hifiberry-dac
-#dtoverlay=hifiberry-dacplus
-#dtoverlay=hifiberry-digi
-#dtoverlay=hifiberry-digi-pro
-#dtoverlay=iqaudio-dac
-#dtoverlay=iqaudio-dacplus
-#dtoverlay=iqaudio-digi-wm8804-audio
-#dtoverlay=justboom-dac
-#dtoverlay=justboom-digi
-#dtoverlay=pisound
-#dtoverlay=raspidac3
-#dtoverlay=rpi-dac
-#dtoverlay=rpi-proto
-#dtoverlay=rra-digidac1-wm8741-audio

target/linux/brcm2708/modules.mk

@@ -1,868 +1,8 @@
 #
-# Copyright (C) 2012-2016 OpenWrt.org
+# Copyright (C) 2019 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
 #
 
-define KernelPackage/drm-vc4
-  SUBMENU:=$(VIDEO_MENU)
-  TITLE:=Broadcom VC4 Graphics
-  DEPENDS:= \
-	@TARGET_brcm2708 +kmod-drm \
-	+kmod-sound-core \
-	+kmod-sound-soc-core
-  KCONFIG:= \
-	CONFIG_DRM_VC4 \
-	CONFIG_DRM_VC4_HDMI_CEC=n
-  FILES:= \
-	$(LINUX_DIR)/drivers/gpu/drm/vc4/vc4.ko \
-	$(LINUX_DIR)/drivers/gpu/drm/drm_kms_helper.ko
-  AUTOLOAD:=$(call AutoProbe,vc4)
-endef
-
-define KernelPackage/drm-vc4/description
-  Direct Rendering Manager (DRM) support for Broadcom VideoCore IV GPU
-  used in BCM2835, BCM2836 and BCM2837 SoCs (e.g. Raspberry Pi).
-endef
-
-$(eval $(call KernelPackage,drm-vc4))
-
-
-define KernelPackage/hwmon-rpi-poe-fan
-  SUBMENU:=$(HWMON_MENU)
-  TITLE:=Raspberry Pi PoE HAT fan
-  DEPENDS:=@TARGET_brcm2708 +kmod-hwmon-core
-  KCONFIG:=CONFIG_SENSORS_RPI_POE_FAN
-  FILES:=$(LINUX_DIR)/drivers/hwmon/rpi-poe-fan.ko
-  AUTOLOAD:=$(call AutoProbe,rpi-poe-fan)
-endef
-
-define KernelPackage/hwmon-rpi-poe-fan/description
-  Raspberry Pi PoE HAT fan driver
-endef
-
-$(eval $(call KernelPackage,hwmon-rpi-poe-fan))
-
-
-define KernelPackage/sound-arm-bcm2835
-  TITLE:=BCM2835 ALSA driver
-  KCONFIG:= \
-	CONFIG_SND_ARM=y \
-	CONFIG_SND_BCM2835 \
-	CONFIG_SND_ARMAACI=n
-  FILES:= \
-	$(LINUX_DIR)/drivers/staging/vc04_services/bcm2835-audio/snd-bcm2835.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-bcm2835)
-  DEPENDS:=@TARGET_brcm2708
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-arm-bcm2835/description
-  This package contains the BCM2835 ALSA pcm card driver
-endef
-
-$(eval $(call KernelPackage,sound-arm-bcm2835))
-
-
-define KernelPackage/sound-soc-bcm2835-i2s
-  TITLE:=SoC Audio support for the Broadcom 2835 I2S module
-  KCONFIG:= \
-	CONFIG_SND_BCM2835_SOC_I2S \
-	CONFIG_SND_SOC_DMAENGINE_PCM=y \
-	CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-bcm2835-i2s.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-bcm2835-i2s)
-  DEPENDS:=@TARGET_brcm2708 +kmod-sound-soc-core
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-bcm2835-i2s/description
-  This package contains support for codecs attached to the Broadcom 2835 I2S interface
-endef
-
-$(eval $(call KernelPackage,sound-soc-bcm2835-i2s))
-
-
-define KernelPackage/sound-soc-3dlab-nano-player
-  TITLE:=Support for 3Dlab Nano Player
-  KCONFIG:= CONFIG_SND_BCM2708_SOC_3DLAB_NANO_PLAYER
-  FILES:=$(LINUX_DIR)/sound/soc/bcm/snd-soc-3dlab-nano-player.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-3dlab-nano-player)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-regmap-i2c
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-3dlab-nano-player/description
-  This package contains support for 3Dlab Nano Player
-endef
-
-$(eval $(call KernelPackage,sound-soc-3dlab-nano-player))
-
-
-define KernelPackage/sound-soc-adau1977-adc
-  TITLE:=Support for ADAU1977 ADC
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_ADAU1977_ADC \
-	CONFIG_SND_SOC_ADAU1977 \
-	CONFIG_SND_SOC_ADAU1977_I2C
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-adau1977-adc.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-adau1977.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-adau1977-i2c.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-adau1977 snd-soc-adau1977-i2c \
-	snd-soc-adau1977-adc)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-i2c-bcm2708 \
-	+kmod-regmap-i2c
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-adau1977-adc/description
-  This package contains support for ADAU1977 ADC
-endef
-
-$(eval $(call KernelPackage,sound-soc-adau1977-adc))
-
-
-define KernelPackage/sound-soc-allo-boss-dac
-  TITLE:=Support for Allo Boss DAC
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC \
-	CONFIG_SND_SOC_PCM512x \
-	CONFIG_SND_SOC_PCM512x_I2C
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-allo-boss-dac.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x-i2c.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x-i2c snd-soc-pcm512x \
-	snd-soc-allo-boss-dac)
-  DEPENDS:= \
-	+kmod-i2c-bcm2708 \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-regmap-i2c
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-allo-boss-dac/description
-  This package contains support for Allo Boss DAC
-endef
-
-$(eval $(call KernelPackage,sound-soc-allo-boss-dac))
-
-
-define KernelPackage/sound-soc-allo-digione
-  TITLE:=Support for Allo Piano DigiOne
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_ALLO_DIGIONE \
-	CONFIG_SND_SOC_PCM512x \
-	CONFIG_SND_SOC_PCM512x_I2C
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-allo-digione.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x-i2c.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x-i2c snd-soc-pcm512x \
-	snd-soc-allo-digione)
-  DEPENDS:= \
-	+kmod-i2c-bcm2708 \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-regmap-i2c
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-allo-digione/description
-  This package contains support for Allo DigiOne
-endef
-
-$(eval $(call KernelPackage,sound-soc-allo-digione))
-
-
-define KernelPackage/sound-soc-allo-piano-dac
-  TITLE:=Support for Allo Piano DAC
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC \
-	CONFIG_SND_SOC_PCM512x \
-	CONFIG_SND_SOC_PCM512x_I2C
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-allo-piano-dac.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x-i2c.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x-i2c snd-soc-pcm512x \
-	snd-soc-allo-piano-dac)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-i2c-bcm2708 \
-	+kmod-regmap-i2c
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-allo-piano-dac/description
-  This package contains support for Allo Piano DAC
-endef
-
-$(eval $(call KernelPackage,sound-soc-allo-piano-dac))
-
-
-define KernelPackage/sound-soc-allo-piano-dac-plus
-  TITLE:=Support for Allo Piano DAC Plus
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS \
-	CONFIG_SND_SOC_PCM512x \
-	CONFIG_SND_SOC_PCM512x_I2C
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-allo-piano-dac-plus.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x-i2c.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x-i2c snd-soc-pcm512x \
-	snd-soc-allo-piano-dac-plus)
-  DEPENDS:= \
-	+kmod-i2c-bcm2708 \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-regmap-i2c
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-allo-piano-dac-plus/description
-  This package contains support for Allo Piano DAC Plus
-endef
-
-$(eval $(call KernelPackage,sound-soc-allo-piano-dac-plus))
-
-
-define KernelPackage/sound-soc-allo-katana-codec
-  TITLE:=Support for Allo Katana DAC
-  KCONFIG:= \
-	CONFIG_SND_AUDIO_GRAPH_CARD \
-	CONFIG_SND_BCM2708_SOC_ALLO_KATANA_DAC \
-	CONFIG_SND_SOC_PCM512x \
-	CONFIG_SND_SOC_PCM512x_I2C \
-	CONFIG_SND_SIMPLE_CARD_UTILS
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-allo-katana-codec.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x-i2c.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x-i2c snd-soc-pcm512x \
-	snd-soc-allo-katana-codec)
-  DEPENDS:= \
-	+kmod-i2c-bcm2708 \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-regmap-i2c
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-allo-katana-codec/description
-  This package contains support for Allo Katana DAC
-endef
-
-$(eval $(call KernelPackage,sound-soc-allo-katana-codec))
-
-
-define KernelPackage/sound-soc-audioinjector-octo-soundcard
-  TITLE:=Support for AudioInjector Octo soundcard
-  KCONFIG:= \
-	CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD \
-	CONFIG_SND_SOC_CS42XX8 \
-	CONFIG_SND_SOC_CS42XX8_I2C
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-audioinjector-octo-soundcard.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-cs42xx8.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-cs42xx8-i2c.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc- \
-	snd-soc-audioinjector-octo-soundcard)
-  DEPENDS:= \
-	+kmod-i2c-bcm2708 \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-regmap-i2c
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-audioinjector-octo-soundcard/description
-  This package contains support for AudioInjector Octo soundcard
-endef
-
-$(eval $(call KernelPackage,sound-soc-audioinjector-octo-soundcard))
-
-
-define KernelPackage/sound-soc-audioinjector-pi-soundcard
-  TITLE:=Support for AudioInjector Pi soundcard
-  KCONFIG:= \
-        CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD \
-        CONFIG_SND_SOC_WM8731
-  FILES:= \
-        $(LINUX_DIR)/sound/soc/bcm/snd-soc-audioinjector-pi-soundcard.ko \
-        $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8731.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-wm8731 \
-	snd-soc-audioinjector-pi-soundcard)
-  DEPENDS:= \
-        kmod-sound-soc-bcm2835-i2s \
-        +kmod-i2c-bcm2708 \
-        +kmod-regmap-i2c \
-        +kmod-regmap-spi
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-audioinjector-pi-soundcard/description
-  This package contains support for AudioInjector Pi soundcard
-endef
-
-$(eval $(call KernelPackage,sound-soc-audioinjector-pi-soundcard))
-
-define KernelPackage/sound-soc-digidac1-soundcard
-  TITLE:=Support for RRA DigiDAC1
-  KCONFIG:= \
-	CONFIG_SND_DIGIDAC1_SOUNDCARD \
-	CONFIG_SND_SOC_WM8741 \
-	CONFIG_SND_SOC_WM8804 \
-	CONFIG_SND_SOC_WM8804_I2C
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-digidac1-soundcard.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8741.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804-i2c.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-wm8741 \
-	snd-soc-wm8804 snd-soc-wm8804-i2c \
-	snd-soc-digidac1-soundcard)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-i2c-bcm2708 \
-	+kmod-regmap-i2c \
-	+kmod-regmap-spi
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-digidac1-soundcard/description
-  This package contains support for RRA DigiDAC1
-endef
-
-$(eval $(call KernelPackage,sound-soc-digidac1-soundcard))
-
-define KernelPackage/sound-soc-dionaudio-loco
-  TITLE:=Support for Dion Audio LOCO DAC-AMP
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO \
-	CONFIG_SND_SOC_PCM5102A
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-dionaudio-loco.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm5102a.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm5102a \
-	snd-soc-dionaudio-loco)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-dionaudio-loco/description
-  This package contains support for Dion Audio LOCO DAC-AMP
-endef
-
-$(eval $(call KernelPackage,sound-soc-dionaudio-loco))
-
-define KernelPackage/sound-soc-dionaudio-loco-v2
-  TITLE:=Support for Dion Audio LOCO-V2 DAC-AMP
-  KCONFIG:= \
-        CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2 \
-        CONFIG_SND_SOC_PCM512x \
-        CONFIG_SND_SOC_PCM512x_I2C
-  FILES:= \
-        $(LINUX_DIR)/sound/soc/bcm/snd-soc-dionaudio-loco.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x-i2c.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x snd-soc-pcm512x-i2c \
-        snd-soc-dionaudio-loco)
-  DEPENDS:= \
-        kmod-sound-soc-bcm2835-i2s \
-        +kmod-regmap-i2c
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-dionaudio-loco-v2/description
-  This package contains support for Dion Audio LOCO-V2 DAC-AMP
-endef
-
-$(eval $(call KernelPackage,sound-soc-dionaudio-loco-v2))
-
-define KernelPackage/sound-soc-fe-pi
-  TITLE:=Support for Fe-Pi Audio Sound Card
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO \
-	CONFIG_SND_SOC_SGTL5000
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-fe-pi-audio.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-sgtl5000.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-sgtl5000 \
-	snd-soc-fe-pi-audio)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-regmap-i2c
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-fe-pi/description
-  This package contains support for Fe-Pi Audio Sound Card
-endef
-
-$(eval $(call KernelPackage,sound-soc-fe-pi))
-
-
-define KernelPackage/sound-soc-googlevoicehat
-  TITLE:=Support for Google VoiceHAT Sound Card
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD \
-	CONFIG_SND_SOC_VOICEHAT
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-googlevoicehat-codec.ko \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-googlevoicehat-soundcard.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-googlevoicehat-codec \
-	snd-soc-googlevoicehat-soundcard)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-googlevoicehat/description
-  This package contains support for Google VoiceHAT Sound Card
-endef
-
-$(eval $(call KernelPackage,sound-soc-googlevoicehat))
-
-
-define KernelPackage/sound-soc-hifiberry-dac
-  TITLE:=Support for HifiBerry DAC
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC \
-	CONFIG_SND_SOC_PCM5102A
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-hifiberry-dac.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm5102a.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm5102a snd-soc-hifiberry-dac)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-i2c-bcm2708
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-hifiberry-dac/description
-  This package contains support for HifiBerry DAC
-endef
-
-$(eval $(call KernelPackage,sound-soc-hifiberry-dac))
-
-define KernelPackage/sound-soc-hifiberry-dacplus
-  TITLE:=Support for HifiBerry DAC+ / DAC+ Pro
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS \
-	CONFIG_SND_SOC_PCM512x
-  FILES:= \
-	$(LINUX_DIR)/drivers/clk/clk-hifiberry-dacpro.ko \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-hifiberry-dacplus.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko
-  AUTOLOAD:=$(call AutoLoad,68,clk-hifiberry-dacpro snd-soc-pcm512x \
-	snd-soc-hifiberry-dacplus)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-i2c-bcm2708
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-hifiberry-dacplus/description
-  This package contains support for HifiBerry DAC+ / DAC+ Pro
-endef
-
-$(eval $(call KernelPackage,sound-soc-hifiberry-dacplus))
-
-define KernelPackage/sound-soc-hifiberry-digi
-  TITLE:=Support for HifiBerry Digi / Digi+ / Digi+ Pro
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI \
-	CONFIG_SND_SOC_WM8804
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-hifiberry-digi.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-wm8804 snd-soc-hifiberry-digi)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-i2c-bcm2708
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-hifiberry-digi/description
-  This package contains support for HifiBerry Digi
-endef
-
-$(eval $(call KernelPackage,sound-soc-hifiberry-digi))
-
-define KernelPackage/sound-soc-hifiberry-amp
-  TITLE:=Support for HifiBerry Amp
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP \
-	CONFIG_SND_SOC_TAS5713
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-hifiberry-amp.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-tas5713.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-tas5713 snd-soc-hifiberry-amp)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-i2c-bcm2708 \
-	+kmod-regmap-i2c
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-hifiberry-amp/description
-  This package contains support for HifiBerry Amp
-endef
-
-$(eval $(call KernelPackage,sound-soc-hifiberry-amp))
-
-define KernelPackage/sound-soc-iqaudio-dac
-  TITLE:=Support for IQaudIO-DAC
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC \
-	CONFIG_SND_SOC_PCM512x \
-	CONFIG_SND_SOC_PCM512x_I2C
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-iqaudio-dac.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x-i2c.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x snd-soc-pcm512x-i2c \
-	snd-soc-iqaudio-dac)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-i2c-bcm2708 \
-	+kmod-regmap-i2c
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-iqaudio-dac/description
-  This package contains support for IQaudIO-DAC
-endef
-
-$(eval $(call KernelPackage,sound-soc-iqaudio-dac))
-
-define KernelPackage/sound-soc-iqaudio-digi
-  TITLE:=Support for IQaudIO-DIGI
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI \
-	CONFIG_SND_SOC_WM8804 \
-	CONFIG_SND_SOC_WM8804_I2C
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-iqaudio-digi.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804-i2c.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-wm8804 snd-soc-wm8804-i2c \
-	snd-soc-iqaudio-digi)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-i2c-bcm2708 \
-	+kmod-regmap-i2c
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-iqaudio-digi/description
-  This package contains support for IQaudIO-DIGI
-endef
-
-$(eval $(call KernelPackage,sound-soc-iqaudio-digi))
-
-define KernelPackage/sound-soc-justboom-dac
-  TITLE:=Support for JustBoom DAC
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC \
-	CONFIG_SND_SOC_PCM512x
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-justboom-dac.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x snd-soc-justboom-dac)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-i2c-bcm2708
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-justboom-dac/description
-  This package contains support for JustBoom DAC
-endef
-
-$(eval $(call KernelPackage,sound-soc-justboom-dac))
-
-define KernelPackage/sound-soc-justboom-digi
-  TITLE:=Support for JustBoom Digi
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_JUSTBOOM_DIGI \
-	CONFIG_SND_SOC_WM8804
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-justboom-digi.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-wm8804 snd-soc-justboom-digi)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-i2c-bcm2708
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-justboom-digi/description
-  This package contains support for JustBoom Digi
-endef
-
-$(eval $(call KernelPackage,sound-soc-justboom-digi))
-
-define KernelPackage/sound-soc-pisound
-  TITLE:=Support for Blokas Labs PiSound
-  KCONFIG:= \
-	CONFIG_SND_PISOUND \
-	CONFIG_SND_SOC_PCM5102A
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-pisound.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm5102a.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm5102a snd-soc-pisound)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-pisound/description
-  This package contains support for Blokas Labs PiSound
-endef
-
-$(eval $(call KernelPackage,sound-soc-pisound))
-
-
-define KernelPackage/sound-soc-rpi-cirrus
-  TITLE:=Support for Cirrus Logic Audio Card
-  KCONFIG:= \
-	CONFIG_GPIO_ARIZONA \
-	CONFIG_INPUT_ARIZONA_HAPTICS=n \
-	CONFIG_MFD_ARIZONA=y \
-	CONFIG_MFD_ARIZONA_I2C \
-	CONFIG_MFD_CS47L24=n \
-	CONFIG_MFD_WM5102=n \
-	CONFIG_MFD_WM5110=n \
-	CONFIG_MFD_WM8997=n \
-	CONFIG_MFD_WM8998=n \
-	CONFIG_REGULATOR_ARIZONA \
-	CONFIG_REGULATOR_ARIZONA_LDO1 \
-	CONFIG_REGULATOR_ARIZONA_MICSUPP \
-	CONFIG_SND_BCM2708_SOC_RPI_CIRRUS \
-	CONFIG_SND_SOC_ARIZONA \
-	CONFIG_SND_SOC_WM5102 \
-	CONFIG_SND_SOC_WM8804 \
-	CONFIG_SND_SOC_WM_ADSP
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-rpi-cirrus.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-arizona.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-wm-adsp.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-wm5102.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm1794a snd-soc-rpi-cirrus)
-  DEPENDS:= \
-	+kmod-i2c-bcm2708 \
-	kmod-sound-soc-bcm2835-i2s
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-rpi-cirrus/description
-  This package contains support for RPi-Cirrus
-endef
-
-$(eval $(call KernelPackage,sound-soc-rpi-cirrus))
-
-
-define KernelPackage/sound-soc-rpi-dac
-  TITLE:=Support for RPi-DAC
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_RPI_DAC \
-	CONFIG_SND_SOC_PCM1794A
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-rpi-dac.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm1794a.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm1794a snd-soc-rpi-dac)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-i2c-bcm2708
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-rpi-dac/description
-  This package contains support for RPi-DAC
-endef
-
-$(eval $(call KernelPackage,sound-soc-rpi-dac))
-
-define KernelPackage/sound-soc-rpi-proto
-  TITLE:=Support for RPi-PROTO
-  KCONFIG:= \
-	CONFIG_SND_BCM2708_SOC_RPI_PROTO \
-	CONFIG_SND_SOC_WM8731
-  FILES:= \
-	$(LINUX_DIR)/sound/soc/bcm/snd-soc-rpi-proto.ko \
-	$(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8731.ko
-  AUTOLOAD:=$(call AutoLoad,68,snd-soc-wm8731 snd-soc-rpi-proto)
-  DEPENDS:= \
-	kmod-sound-soc-bcm2835-i2s \
-	+kmod-i2c-bcm2708 \
-	+kmod-regmap-i2c \
-	+kmod-regmap-spi
-  $(call AddDepends/sound)
-endef
-
-define KernelPackage/sound-soc-rpi-proto/description
-  This package contains support for RPi-PROTO
-endef
-
-$(eval $(call KernelPackage,sound-soc-rpi-proto))
-
-
-define KernelPackage/random-bcm2835
-  SUBMENU:=$(OTHER_MENU)
-  TITLE:=BCM2835 HW Random Number Generator
-  KCONFIG:=CONFIG_HW_RANDOM_BCM2835
-  FILES:=$(LINUX_DIR)/drivers/char/hw_random/bcm2835-rng.ko
-  AUTOLOAD:=$(call AutoLoad,11,bcm2835-rng)
-  DEPENDS:=@TARGET_brcm2708 +kmod-random-core
-endef
-
-define KernelPackage/random-bcm2835/description
-  This package contains the Broadcom 2835 HW random number generator driver
-endef
-
-$(eval $(call KernelPackage,random-bcm2835))
-
-
-define KernelPackage/smi-bcm2835
-  SUBMENU:=$(OTHER_MENU)
-  TITLE:=BCM2835 SMI driver
-  KCONFIG:=CONFIG_BCM2835_SMI
-  FILES:=$(LINUX_DIR)/drivers/misc/bcm2835_smi.ko
-  AUTOLOAD:=$(call AutoLoad,20,bcm2835_smi)
-  DEPENDS:=@TARGET_brcm2708
-endef
-
-define KernelPackage/smi-bcm2835/description
-  This package contains the Character device driver for Broadcom Secondary
-  Memory Interface
-endef
-
-$(eval $(call KernelPackage,smi-bcm2835))
-
-define KernelPackage/smi-bcm2835-dev
-  SUBMENU:=$(OTHER_MENU)
-  TITLE:=BCM2835 SMI device driver
-  KCONFIG:=CONFIG_BCM2835_SMI_DEV
-  FILES:=$(LINUX_DIR)/drivers/char/broadcom/bcm2835_smi_dev.ko
-  AUTOLOAD:=$(call AutoLoad,21,bcm2835_smi_dev)
-  DEPENDS:=@TARGET_brcm2708 +kmod-smi-bcm2835
-endef
-
-define KernelPackage/smi-bcm2835-dev/description
-  This driver provides a character device interface (ioctl + read/write) to
-  Broadcom's Secondary Memory interface. The low-level functionality is provided
-  by the SMI driver itself.
-endef
-
-$(eval $(call KernelPackage,smi-bcm2835-dev))
-
-
-define KernelPackage/spi-bcm2835
-  SUBMENU:=$(SPI_MENU)
-  TITLE:=BCM2835 SPI controller driver
-  KCONFIG:=\
-    CONFIG_SPI=y \
-    CONFIG_SPI_BCM2835 \
-    CONFIG_SPI_MASTER=y
-  FILES:=$(LINUX_DIR)/drivers/spi/spi-bcm2835.ko
-  AUTOLOAD:=$(call AutoLoad,89,spi-bcm2835)
-  DEPENDS:=@TARGET_brcm2708
-endef
-
-define KernelPackage/spi-bcm2835/description
-  This package contains the Broadcom 2835 SPI master controller driver
-endef
-
-$(eval $(call KernelPackage,spi-bcm2835))
-
-define KernelPackage/spi-bcm2835-aux
-  SUBMENU:=$(SPI_MENU)
-  TITLE:=BCM2835 Aux SPI controller driver
-  KCONFIG:=\
-    CONFIG_SPI=y \
-    CONFIG_SPI_BCM2835AUX \
-    CONFIG_SPI_MASTER=y
-  FILES:=$(LINUX_DIR)/drivers/spi/spi-bcm2835aux.ko
-  AUTOLOAD:=$(call AutoLoad,89,spi-bcm2835aux)
-  DEPENDS:=@TARGET_brcm2708
-endef
-
-define KernelPackage/spi-bcm2835-aux/description
-  This package contains the Broadcom 2835 Aux SPI master controller driver
-endef
-
-$(eval $(call KernelPackage,spi-bcm2835-aux))
-
-
-define KernelPackage/hwmon-bcm2835
-  TITLE:=BCM2835 HWMON driver
-  KCONFIG:=CONFIG_SENSORS_BCM2835
-  FILES:=$(LINUX_DIR)/drivers/hwmon/bcm2835-hwmon.ko
-  AUTOLOAD:=$(call AutoLoad,60,bcm2835-hwmon)
-  $(call AddDepends/hwmon,@TARGET_brcm2708)
-endef
-
-define KernelPackage/hwmon-bcm2835/description
-  Kernel module for BCM2835 thermal monitor chip
-endef
-
-$(eval $(call KernelPackage,hwmon-bcm2835))
-
-
-I2C_BCM2708_MODULES:=\
-  CONFIG_I2C_BCM2708:drivers/i2c/busses/i2c-bcm2708
-
-define KernelPackage/i2c-bcm2708
-  $(call i2c_defaults,$(I2C_BCM2708_MODULES),59)
-  TITLE:=Broadcom BCM2708 I2C master controller driver
-  KCONFIG+= \
-	CONFIG_I2C_BCM2708_BAUDRATE=100000
-  DEPENDS:=@TARGET_brcm2708 +kmod-i2c-core
-endef
-
-define KernelPackage/i2c-bcm2708/description
-  This package contains the Broadcom 2708 I2C master controller driver
-endef
-
-$(eval $(call KernelPackage,i2c-bcm2708))
-
-I2C_BCM2835_MODULES:=\
-  CONFIG_I2C_BCM2835:drivers/i2c/busses/i2c-bcm2835
-
-define KernelPackage/i2c-bcm2835
-  $(call i2c_defaults,$(I2C_BCM2835_MODULES),59)
-  TITLE:=Broadcom BCM2835 I2C master controller driver
-  DEPENDS:=@TARGET_brcm2708 +kmod-i2c-core
-endef
-
-define KernelPackage/i2c-bcm2835/description
-  This package contains the Broadcom 2835 I2C master controller driver
-endef
-
-$(eval $(call KernelPackage,i2c-bcm2835))
-
-
-define KernelPackage/video-bcm2835
-  TITLE:=Broadcom BCM2835 camera interface driver
-  KCONFIG:= \
-	CONFIG_VIDEO_BCM2835 \
-	CONFIG_VIDEO_BCM2835_MMAL
-  FILES:= \
-	$(LINUX_DIR)/drivers/staging/vc04_services/bcm2835-camera/bcm2835-v4l2.ko
-  AUTOLOAD:=$(call AutoLoad,65,bcm2835-v4l2)
-  $(call AddDepends/video,@TARGET_brcm2708 +kmod-video-videobuf2)
-endef
-
-define KernelPackage/video-bcm2835/description
-  This is a V4L2 driver for the Broadcom 2835 MMAL camera host interface
-endef
-
-$(eval $(call KernelPackage,video-bcm2835))
+include $(TOPDIR)/target/linux/brcm2708/modules/*.mk

target/linux/brcm2708/modules/hwmon.mk

@@ -0,0 +1,36 @@
+#
+# Copyright (C) 2019 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+define KernelPackage/hwmon-raspberrypi
+  TITLE:=Raspberry Pi voltage monitor
+  KCONFIG:=CONFIG_SENSORS_RASPBERRYPI_HWMON
+  FILES:=$(LINUX_DIR)/drivers/hwmon/raspberrypi-hwmon.ko
+  AUTOLOAD:=$(call AutoLoad,60,raspberrypi-hwmon)
+  $(call AddDepends/hwmon,@TARGET_brcm2708)
+endef
+
+define KernelPackage/hwmon-raspberrypi/description
+  Kernel module for voltage sensor on the Raspberry Pi
+endef
+
+$(eval $(call KernelPackage,hwmon-raspberrypi))
+
+
+define KernelPackage/hwmon-rpi-poe-fan
+  SUBMENU:=$(HWMON_MENU)
+  TITLE:=Raspberry Pi PoE HAT fan
+  DEPENDS:=@TARGET_brcm2708 +kmod-hwmon-core
+  KCONFIG:=CONFIG_SENSORS_RPI_POE_FAN
+  FILES:=$(LINUX_DIR)/drivers/hwmon/rpi-poe-fan.ko
+  AUTOLOAD:=$(call AutoProbe,rpi-poe-fan)
+endef
+
+define KernelPackage/hwmon-rpi-poe-fan/description
+  Raspberry Pi PoE HAT fan driver
+endef
+
+$(eval $(call KernelPackage,hwmon-rpi-poe-fan))

target/linux/brcm2708/modules/i2c.mk

@@ -0,0 +1,21 @@
+#
+# Copyright (C) 2019 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+I2C_BCM2835_MODULES:=\
+  CONFIG_I2C_BCM2835:drivers/i2c/busses/i2c-bcm2835
+
+define KernelPackage/i2c-bcm2835
+  $(call i2c_defaults,$(I2C_BCM2835_MODULES),59)
+  TITLE:=Broadcom BCM2835 I2C master controller driver
+  DEPENDS:=@TARGET_brcm2708 +kmod-i2c-core
+endef
+
+define KernelPackage/i2c-bcm2835/description
+  This package contains the Broadcom 2835 I2C master controller driver
+endef
+
+$(eval $(call KernelPackage,i2c-bcm2835))

target/linux/brcm2708/modules/other.mk

@@ -0,0 +1,75 @@
+#
+# Copyright (C) 2019 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+define KernelPackage/pwm-bcm2835
+  SUBMENU:=$(OTHER_MENU)
+  TITLE:=BCM2835 PWM driver
+  KCONFIG:= \
+    CONFIG_PWM=y \
+    CONFIG_PWM_BCM2835
+  FILES:=$(LINUX_DIR)/drivers/pwm/pwm-bcm2835.ko
+  AUTOLOAD:=$(call AutoLoad,60,pwm-bcm2835)
+  DEPENDS:=@TARGET_brcm2708
+endef
+
+define KernelPackage/pwm-bcm2835/description
+  This package contains the PWM framework driver for BCM2835 controller (Raspberry Pi)
+endef
+
+$(eval $(call KernelPackage,pwm-bcm2835))
+
+
+define KernelPackage/random-bcm2835
+  SUBMENU:=$(OTHER_MENU)
+  TITLE:=BCM2835 HW Random Number Generator
+  KCONFIG:= \
+    CONFIG_HW_RANDOM_BCM2835
+  FILES:=$(LINUX_DIR)/drivers/char/hw_random/bcm2835-rng.ko
+  AUTOLOAD:=$(call AutoLoad,11,bcm2835-rng)
+  DEPENDS:=@TARGET_brcm2708 +kmod-random-core
+endef
+
+define KernelPackage/random-bcm2835/description
+  This package contains the Broadcom 2835 HW random number generator driver
+endef
+
+$(eval $(call KernelPackage,random-bcm2835))
+
+
+define KernelPackage/smi-bcm2835
+  SUBMENU:=$(OTHER_MENU)
+  TITLE:=BCM2835 SMI driver
+  KCONFIG:=CONFIG_BCM2835_SMI
+  FILES:=$(LINUX_DIR)/drivers/misc/bcm2835_smi.ko
+  AUTOLOAD:=$(call AutoLoad,20,bcm2835_smi)
+  DEPENDS:=@TARGET_brcm2708
+endef
+
+define KernelPackage/smi-bcm2835/description
+  This package contains the Character device driver for Broadcom Secondary
+  Memory Interface
+endef
+
+$(eval $(call KernelPackage,smi-bcm2835))
+
+
+define KernelPackage/smi-bcm2835-dev
+  SUBMENU:=$(OTHER_MENU)
+  TITLE:=BCM2835 SMI device driver
+  KCONFIG:=CONFIG_BCM2835_SMI_DEV
+  FILES:=$(LINUX_DIR)/drivers/char/broadcom/bcm2835_smi_dev.ko
+  AUTOLOAD:=$(call AutoLoad,21,bcm2835_smi_dev)
+  DEPENDS:=@TARGET_brcm2708 +kmod-smi-bcm2835
+endef
+
+define KernelPackage/smi-bcm2835-dev/description
+  This driver provides a character device interface (ioctl + read/write) to
+  Broadcom's Secondary Memory interface. The low-level functionality is provided
+  by the SMI driver itself.
+endef
+
+$(eval $(call KernelPackage,smi-bcm2835-dev))

target/linux/brcm2708/modules/sound.mk

@@ -0,0 +1,805 @@
+#
+# Copyright (C) 2019 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+define KernelPackage/sound-arm-bcm2835
+  TITLE:=BCM2835 ALSA driver
+  KCONFIG:= \
+    CONFIG_SND_ARM=y \
+    CONFIG_SND_BCM2835 \
+    CONFIG_SND_ARMAACI=n
+  FILES:= \
+    $(LINUX_DIR)/drivers/staging/vc04_services/bcm2835-audio/snd-bcm2835.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-bcm2835)
+  DEPENDS:=@TARGET_brcm2708
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-arm-bcm2835/description
+  This package contains the BCM2835 ALSA pcm card driver
+endef
+
+$(eval $(call KernelPackage,sound-arm-bcm2835))
+
+
+define KernelPackage/sound-soc-bcm2835-i2s
+  TITLE:=SoC Audio support for the Broadcom 2835 I2S module
+  KCONFIG:= \
+    CONFIG_SND_BCM2835_SOC_I2S \
+    CONFIG_SND_SOC_AD193X_SPI=n \
+    CONFIG_SND_SOC_AD193X_I2C=n \
+    CONFIG_SND_SOC_DMAENGINE_PCM=y \
+    CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-bcm2835-i2s.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-bcm2835-i2s)
+  DEPENDS:=@TARGET_brcm2708 +kmod-sound-soc-core
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-bcm2835-i2s/description
+  This package contains support for codecs attached to the Broadcom 2835 I2S interface
+endef
+
+$(eval $(call KernelPackage,sound-soc-bcm2835-i2s))
+
+
+define KernelPackage/sound-soc-rpi-simple-soundcard
+  TITLE:=Support for Raspberry Pi simple soundcards
+  KCONFIG:= \
+    CONFIG_SND_RPI_SIMPLE_SOUNDCARD
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-rpi-simple-soundcard.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-rpi-simple-soundcard)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-rpi-simple-soundcard/description
+  This package contains support for Raspbery Pi simple soundcards
+endef
+
+$(eval $(call KernelPackage,sound-soc-rpi-simple-soundcard))
+
+
+define KernelPackage/sound-soc-rpi-wm8804-soundcard
+  TITLE:=Support for Raspberry Pi generic WM8804 soundcards
+  KCONFIG:= \
+    CONFIG_SND_RPI_WM8804_SOUNDCARD
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-rpi-wm8804-soundcard.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-rpi-wm8804-soundcard)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-rpi-wm8804-soundcard/description
+  This package contains support for Raspbery Pi simple soundcards
+endef
+
+$(eval $(call KernelPackage,sound-soc-rpi-wm8804-soundcard))
+
+
+define KernelPackage/sound-soc-adau1977-adc
+  TITLE:=Support for ADAU1977 ADC
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_ADAU1977_ADC \
+    CONFIG_SND_SOC_ADAU1977 \
+    CONFIG_SND_SOC_ADAU1977_I2C
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-adau1977.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-adau1977-i2c.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-adau1977 snd-soc-adau1977-i2c)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-sound-soc-rpi-simple-soundcard \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-adau1977-adc/description
+  This package contains support for ADAU1977 ADC
+endef
+
+$(eval $(call KernelPackage,sound-soc-adau1977-adc))
+
+
+define KernelPackage/sound-soc-allo-boss-dac
+  TITLE:=Support for Allo Boss DAC
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC \
+    CONFIG_SND_SOC_PCM512x \
+    CONFIG_SND_SOC_PCM512x_I2C
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-allo-boss-dac.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x-i2c.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x-i2c snd-soc-pcm512x \
+    snd-soc-allo-boss-dac)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-allo-boss-dac/description
+  This package contains support for Allo Boss DAC
+endef
+
+$(eval $(call KernelPackage,sound-soc-allo-boss-dac))
+
+
+define KernelPackage/sound-soc-allo-digione
+  TITLE:=Support for Allo Piano DigiOne
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_ALLO_DIGIONE \
+    CONFIG_SND_SOC_WM8804 \
+    CONFIG_SND_SOC_WM8804_I2C
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804-i2c.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-wm8804-i2c snd-soc-wm8804 \
+    snd-soc-allo-digione)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-sound-soc-rpi-wm8804-soundcard \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-allo-digione/description
+  This package contains support for Allo DigiOne
+endef
+
+$(eval $(call KernelPackage,sound-soc-allo-digione))
+
+
+define KernelPackage/sound-soc-allo-piano-dac
+  TITLE:=Support for Allo Piano DAC
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC \
+    CONFIG_SND_SOC_PCM512x \
+    CONFIG_SND_SOC_PCM512x_I2C
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-allo-piano-dac.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x-i2c.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x-i2c snd-soc-pcm512x \
+    snd-soc-allo-piano-dac)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-allo-piano-dac/description
+  This package contains support for Allo Piano DAC
+endef
+
+$(eval $(call KernelPackage,sound-soc-allo-piano-dac))
+
+
+define KernelPackage/sound-soc-allo-piano-dac-plus
+  TITLE:=Support for Allo Piano DAC Plus
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS \
+    CONFIG_SND_SOC_PCM512x \
+    CONFIG_SND_SOC_PCM512x_I2C
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-allo-piano-dac-plus.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x-i2c.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x-i2c snd-soc-pcm512x \
+    snd-soc-allo-piano-dac-plus)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-allo-piano-dac-plus/description
+  This package contains support for Allo Piano DAC Plus
+endef
+
+$(eval $(call KernelPackage,sound-soc-allo-piano-dac-plus))
+
+
+define KernelPackage/sound-soc-audiosense-pi
+  TITLE:=Support for AudioSense Add-On Soundcard
+  KCONFIG:= \
+    CONFIG_SND_AUDIOSENSE_PI \
+    CONFIG_SND_SOC_TLV320AIC32X4 \
+    CONFIG_SND_SOC_TLV320AIC32X4_I2C
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-audiosense-pi.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-tlv320aic32x4.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-tlv320aic32x4-i2c.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-tlv320aic32x4-i2c snd-soc-tlv320aic32x4 \
+    snd-soc-audiosense-pi)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-audiosense-pi/description
+  This package contains support for AudioSense Add-On Soundcard
+endef
+
+$(eval $(call KernelPackage,sound-soc-audiosense-pi))
+
+
+define KernelPackage/sound-soc-allo-katana-codec
+  TITLE:=Support for Allo Katana DAC
+  KCONFIG:= \
+    CONFIG_SND_AUDIO_GRAPH_CARD \
+    CONFIG_SND_BCM2708_SOC_ALLO_KATANA_DAC \
+    CONFIG_SND_SOC_PCM512x \
+    CONFIG_SND_SOC_PCM512x_I2C \
+    CONFIG_SND_SIMPLE_CARD_UTILS
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-allo-katana-codec.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x-i2c.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x-i2c snd-soc-pcm512x \
+    snd-soc-allo-katana-codec)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-allo-katana-codec/description
+  This package contains support for Allo Katana DAC
+endef
+
+$(eval $(call KernelPackage,sound-soc-allo-katana-codec))
+
+
+define KernelPackage/sound-soc-audioinjector-octo-soundcard
+  TITLE:=Support for AudioInjector Octo soundcard
+  KCONFIG:= \
+    CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD \
+    CONFIG_SND_SOC_CS42XX8 \
+    CONFIG_SND_SOC_CS42XX8_I2C
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-audioinjector-octo-soundcard.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-cs42xx8.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-cs42xx8-i2c.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc- \
+    snd-soc-audioinjector-octo-soundcard)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-audioinjector-octo-soundcard/description
+  This package contains support for AudioInjector Octo soundcard
+endef
+
+$(eval $(call KernelPackage,sound-soc-audioinjector-octo-soundcard))
+
+
+define KernelPackage/sound-soc-audioinjector-pi-soundcard
+  TITLE:=Support for AudioInjector Pi soundcard
+  KCONFIG:= \
+    CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD \
+    CONFIG_SND_SOC_WM8731
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-audioinjector-pi-soundcard.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8731.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-wm8731 \
+    snd-soc-audioinjector-pi-soundcard)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c \
+    +kmod-regmap-spi
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-audioinjector-pi-soundcard/description
+  This package contains support for AudioInjector Pi soundcard
+endef
+
+$(eval $(call KernelPackage,sound-soc-audioinjector-pi-soundcard))
+
+
+define KernelPackage/sound-soc-digidac1-soundcard
+  TITLE:=Support for RRA DigiDAC1
+  KCONFIG:= \
+    CONFIG_SND_DIGIDAC1_SOUNDCARD \
+    CONFIG_SND_SOC_WM8741 \
+    CONFIG_SND_SOC_WM8804 \
+    CONFIG_SND_SOC_WM8804_I2C
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-digidac1-soundcard.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8741.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804-i2c.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-wm8741 \
+    snd-soc-wm8804 snd-soc-wm8804-i2c \
+    snd-soc-digidac1-soundcard)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c \
+    +kmod-regmap-spi
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-digidac1-soundcard/description
+  This package contains support for RRA DigiDAC1
+endef
+
+$(eval $(call KernelPackage,sound-soc-digidac1-soundcard))
+
+
+define KernelPackage/sound-soc-dionaudio-loco
+  TITLE:=Support for Dion Audio LOCO DAC-AMP
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO \
+    CONFIG_SND_SOC_PCM5102A
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-dionaudio-loco.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm5102a.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm5102a \
+    snd-soc-dionaudio-loco)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-dionaudio-loco/description
+  This package contains support for Dion Audio LOCO DAC-AMP
+endef
+
+$(eval $(call KernelPackage,sound-soc-dionaudio-loco))
+
+
+define KernelPackage/sound-soc-dionaudio-loco-v2
+  TITLE:=Support for Dion Audio LOCO-V2 DAC-AMP
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2 \
+    CONFIG_SND_SOC_PCM512x \
+    CONFIG_SND_SOC_PCM512x_I2C
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-dionaudio-loco.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x-i2c.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x snd-soc-pcm512x-i2c \
+    snd-soc-dionaudio-loco)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-dionaudio-loco-v2/description
+  This package contains support for Dion Audio LOCO-V2 DAC-AMP
+endef
+
+$(eval $(call KernelPackage,sound-soc-dionaudio-loco-v2))
+
+
+define KernelPackage/sound-soc-fe-pi
+  TITLE:=Support for Fe-Pi Audio Sound Card
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO \
+    CONFIG_SND_SOC_SGTL5000
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-fe-pi-audio.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-sgtl5000.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-sgtl5000 \
+    snd-soc-fe-pi-audio)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-fe-pi/description
+  This package contains support for Fe-Pi Audio Sound Card
+endef
+
+$(eval $(call KernelPackage,sound-soc-fe-pi))
+
+
+define KernelPackage/sound-soc-googlevoicehat
+  TITLE:=Support for Google VoiceHAT Sound Card
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD \
+    CONFIG_SND_SOC_VOICEHAT
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-googlevoicehat-codec.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-googlevoicehat-codec)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-sound-soc-rpi-simple-soundcard
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-googlevoicehat/description
+  This package contains support for Google VoiceHAT Sound Card
+endef
+
+$(eval $(call KernelPackage,sound-soc-googlevoicehat))
+
+
+define KernelPackage/sound-soc-hifiberry-dac
+  TITLE:=Support for HifiBerry DAC
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC \
+    CONFIG_SND_SOC_PCM5102A
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm5102a.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm5102a)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-sound-soc-rpi-simple-soundcard \
+    +kmod-i2c-bcm2835
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-hifiberry-dac/description
+  This package contains support for HifiBerry DAC
+endef
+
+$(eval $(call KernelPackage,sound-soc-hifiberry-dac))
+
+
+define KernelPackage/sound-soc-hifiberry-dacplus
+  TITLE:=Support for HifiBerry DAC+ / DAC+ Pro
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS \
+    CONFIG_SND_SOC_PCM512x
+  FILES:= \
+    $(LINUX_DIR)/drivers/clk/clk-hifiberry-dacpro.ko \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-hifiberry-dacplus.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko
+  AUTOLOAD:=$(call AutoLoad,68,clk-hifiberry-dacpro snd-soc-pcm512x \
+    snd-soc-hifiberry-dacplus)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-hifiberry-dacplus/description
+  This package contains support for HifiBerry DAC+ / DAC+ Pro
+endef
+
+$(eval $(call KernelPackage,sound-soc-hifiberry-dacplus))
+
+
+define KernelPackage/sound-soc-hifiberry-dacplusadc
+  TITLE:=Support for HifiBerry DAC+ADC
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADC \
+    CONFIG_SND_SOC_PCM512x \
+    CONFIG_SND_SOC_DMIC
+  FILES:= \
+    $(LINUX_DIR)/drivers/clk/clk-hifiberry-dacpro.ko \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-hifiberry-dacplusadc.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-dmic.ko
+  AUTOLOAD:=$(call AutoLoad,68,clk-hifiberry-dacpro snd-soc-pcm512x \
+    snd-soc-dmic snd-soc-hifiberry-dacplusadc)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-hifiberry-dacplusadc/description
+  This package contains support for HifiBerry DAC+ADC
+endef
+
+$(eval $(call KernelPackage,sound-soc-hifiberry-dacplusadc))
+
+
+define KernelPackage/sound-soc-hifiberry-digi
+  TITLE:=Support for HifiBerry Digi / Digi+ / Digi+ Pro
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI \
+    CONFIG_SND_SOC_WM8804
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-wm8804)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-sound-soc-rpi-wm8804-soundcard \
+    +kmod-i2c-bcm2835
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-hifiberry-digi/description
+  This package contains support for HifiBerry Digi
+endef
+
+$(eval $(call KernelPackage,sound-soc-hifiberry-digi))
+
+
+define KernelPackage/sound-soc-hifiberry-amp
+  TITLE:=Support for HifiBerry Amp
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP \
+    CONFIG_SND_SOC_TAS5713
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-tas5713.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-tas5713)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-sound-soc-rpi-simple-soundcard \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-hifiberry-amp/description
+  This package contains support for HifiBerry Amp
+endef
+
+$(eval $(call KernelPackage,sound-soc-hifiberry-amp))
+
+
+define KernelPackage/sound-soc-iqaudio-codec
+  TITLE:=Support for IQaudIO-CODEC
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_IQAUDIO_CODEC \
+    CONFIG_SND_SOC_DA7213
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-iqaudio-codec.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-da7213.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-da7213 snd-soc-iqaudio-codec)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-iqaudio-codec/description
+  This package contains support for IQaudIO-CODEC
+endef
+
+$(eval $(call KernelPackage,sound-soc-iqaudio-codec))
+
+
+define KernelPackage/sound-soc-iqaudio-dac
+  TITLE:=Support for IQaudIO-DAC
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC \
+    CONFIG_SND_SOC_PCM512x \
+    CONFIG_SND_SOC_PCM512x_I2C
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-iqaudio-dac.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x-i2c.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x snd-soc-pcm512x-i2c \
+    snd-soc-iqaudio-dac)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-iqaudio-dac/description
+  This package contains support for IQaudIO-DAC
+endef
+
+$(eval $(call KernelPackage,sound-soc-iqaudio-dac))
+
+
+define KernelPackage/sound-soc-iqaudio-digi
+  TITLE:=Support for IQaudIO-DIGI
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI \
+    CONFIG_SND_SOC_WM8804 \
+    CONFIG_SND_SOC_WM8804_I2C
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804-i2c.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-wm8804 snd-soc-wm8804-i2c)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-sound-soc-rpi-wm8804-soundcard \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-iqaudio-digi/description
+  This package contains support for IQaudIO-DIGI
+endef
+
+$(eval $(call KernelPackage,sound-soc-iqaudio-digi))
+
+
+define KernelPackage/sound-soc-i-sabe-q2m
+  TITLE:=Support for Audiophonics I-Sabre Q2M DAC
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_I_SABRE_Q2M \
+    CONFIG_SND_SOC_I_SABRE_CODEC
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-i-sabre-q2m.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-i-sabre-codec.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-i-sabre-codec snd-soc-i-sabre-q2m)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-i-sabe-q2m/description
+  This package contains support for Audiophonics I-SABRE Q2M DAC
+endef
+
+$(eval $(call KernelPackage,sound-soc-i-sabe-q2m))
+
+
+define KernelPackage/sound-soc-justboom-dac
+  TITLE:=Support for JustBoom DAC
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC \
+    CONFIG_SND_SOC_PCM512x
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-justboom-dac.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm512x.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm512x snd-soc-justboom-dac)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-justboom-dac/description
+  This package contains support for JustBoom DAC
+endef
+
+$(eval $(call KernelPackage,sound-soc-justboom-dac))
+
+
+define KernelPackage/sound-soc-justboom-digi
+  TITLE:=Support for JustBoom Digi
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_JUSTBOOM_DIGI \
+    CONFIG_SND_SOC_WM8804
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-wm8804)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-sound-soc-rpi-wm8804-soundcard \
+    +kmod-i2c-bcm2835
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-justboom-digi/description
+  This package contains support for JustBoom Digi
+endef
+
+$(eval $(call KernelPackage,sound-soc-justboom-digi))
+
+
+define KernelPackage/sound-soc-pisound
+  TITLE:=Support for Blokas Labs PiSound
+  KCONFIG:= \
+    CONFIG_SND_PISOUND \
+    CONFIG_SND_SOC_PCM5102A
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-pisound.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm5102a.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm5102a snd-soc-pisound)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-pisound/description
+  This package contains support for Blokas Labs PiSound
+endef
+
+$(eval $(call KernelPackage,sound-soc-pisound))
+
+
+define KernelPackage/sound-soc-rpi-cirrus
+  TITLE:=Support for Cirrus Logic Audio Card
+  KCONFIG:= \
+    CONFIG_GPIO_ARIZONA \
+    CONFIG_INPUT_ARIZONA_HAPTICS=n \
+    CONFIG_MFD_ARIZONA=y \
+    CONFIG_MFD_ARIZONA_I2C \
+    CONFIG_MFD_CS47L24=n \
+    CONFIG_MFD_WM5102=n \
+    CONFIG_MFD_WM5110=n \
+    CONFIG_MFD_WM8997=n \
+    CONFIG_MFD_WM8998=n \
+    CONFIG_REGULATOR_ARIZONA \
+    CONFIG_REGULATOR_ARIZONA_LDO1 \
+    CONFIG_REGULATOR_ARIZONA_MICSUPP \
+    CONFIG_SND_BCM2708_SOC_RPI_CIRRUS \
+    CONFIG_SND_SOC_ARIZONA \
+    CONFIG_SND_SOC_WM5102 \
+    CONFIG_SND_SOC_WM8804 \
+    CONFIG_SND_SOC_WM_ADSP
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-rpi-cirrus.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-arizona.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm-adsp.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm5102.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8804.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm1794a snd-soc-rpi-cirrus)
+  DEPENDS:= \
+    +kmod-i2c-bcm2835 \
+    kmod-sound-soc-bcm2835-i2s
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-rpi-cirrus/description
+  This package contains support for RPi-Cirrus
+endef
+
+$(eval $(call KernelPackage,sound-soc-rpi-cirrus))
+
+
+define KernelPackage/sound-soc-rpi-dac
+  TITLE:=Support for RPi-DAC
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_RPI_DAC \
+    CONFIG_SND_SOC_PCM1794A
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-pcm1794a.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-pcm1794a)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-sound-soc-rpi-simple-soundcard \
+    +kmod-i2c-bcm2835
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-rpi-dac/description
+  This package contains support for RPi-DAC
+endef
+
+$(eval $(call KernelPackage,sound-soc-rpi-dac))
+
+
+define KernelPackage/sound-soc-rpi-proto
+  TITLE:=Support for RPi-PROTO
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_RPI_PROTO \
+    CONFIG_SND_SOC_WM8731
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-rpi-proto.ko \
+    $(LINUX_DIR)/sound/soc/codecs/snd-soc-wm8731.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-wm8731 snd-soc-rpi-proto)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    +kmod-i2c-bcm2835 \
+    +kmod-regmap-i2c \
+    +kmod-regmap-spi
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-rpi-proto/description
+  This package contains support for RPi-PROTO
+endef
+
+$(eval $(call KernelPackage,sound-soc-rpi-proto))

target/linux/brcm2708/modules/spi.mk

@@ -0,0 +1,43 @@
+#
+# Copyright (C) 2019 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+define KernelPackage/spi-bcm2835
+  SUBMENU:=$(SPI_MENU)
+  TITLE:=BCM2835 SPI controller driver
+  KCONFIG:=\
+    CONFIG_SPI=y \
+    CONFIG_SPI_BCM2835 \
+    CONFIG_SPI_MASTER=y
+  FILES:=$(LINUX_DIR)/drivers/spi/spi-bcm2835.ko
+  AUTOLOAD:=$(call AutoLoad,89,spi-bcm2835)
+  DEPENDS:=@TARGET_brcm2708
+endef
+
+define KernelPackage/spi-bcm2835/description
+  This package contains the Broadcom 2835 SPI master controller driver
+endef
+
+$(eval $(call KernelPackage,spi-bcm2835))
+
+
+define KernelPackage/spi-bcm2835-aux
+  SUBMENU:=$(SPI_MENU)
+  TITLE:=BCM2835 Aux SPI controller driver
+  KCONFIG:=\
+    CONFIG_SPI=y \
+    CONFIG_SPI_BCM2835AUX \
+    CONFIG_SPI_MASTER=y
+  FILES:=$(LINUX_DIR)/drivers/spi/spi-bcm2835aux.ko
+  AUTOLOAD:=$(call AutoLoad,89,spi-bcm2835aux)
+  DEPENDS:=@TARGET_brcm2708
+endef
+
+define KernelPackage/spi-bcm2835-aux/description
+  This package contains the Broadcom 2835 Aux SPI master controller driver
+endef
+
+$(eval $(call KernelPackage,spi-bcm2835-aux))

target/linux/brcm2708/modules/video.mk

@@ -0,0 +1,85 @@
+#
+# Copyright (C) 2019 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+define KernelPackage/camera-bcm2835
+  TITLE:=BCM2835 Camera
+  KCONFIG:= \
+    CONFIG_VIDEO_BCM2835 \
+    CONFIG_VIDEO_BCM2835_MMAL
+  FILES:= \
+    $(LINUX_DIR)/drivers/staging/vc04_services/bcm2835-camera/bcm2835-v4l2.ko
+  AUTOLOAD:=$(call AutoLoad,65,bcm2835-v4l2)
+  $(call AddDepends/video,@TARGET_brcm2708 +kmod-vchiq-mmal-bcm2835 +kmod-video-videobuf2)
+endef
+
+define KernelPackage/camera-bcm2835/description
+  Camera host interface devices for Broadcom BCM2835 SoC.
+  This operates over the VCHIQ interface to a service running on VideoCore.
+endef
+
+$(eval $(call KernelPackage,camera-bcm2835))
+
+
+define KernelPackage/drm-vc4
+  SUBMENU:=$(VIDEO_MENU)
+  TITLE:=Broadcom VC4 Graphics
+  DEPENDS:= \
+    @TARGET_brcm2708 +kmod-drm \
+    +kmod-sound-core \
+    +kmod-sound-soc-core
+  KCONFIG:= \
+    CONFIG_DRM_VC4 \
+    CONFIG_DRM_VC4_HDMI_CEC=n \
+    CONFIG_DRM_V3D=n \
+    CONFIG_DRM_TVE200=n
+  FILES:= \
+    $(LINUX_DIR)/drivers/gpu/drm/vc4/vc4.ko \
+    $(LINUX_DIR)/drivers/gpu/drm/drm_kms_helper.ko
+  AUTOLOAD:=$(call AutoProbe,vc4)
+endef
+
+define KernelPackage/drm-vc4/description
+  Direct Rendering Manager (DRM) support for Broadcom VideoCore IV GPU
+  used in BCM2835, BCM2836 and BCM2837 SoCs (e.g. Raspberry Pi).
+endef
+
+$(eval $(call KernelPackage,drm-vc4))
+
+
+define KernelPackage/vc-sm-cma
+  TITLE:=VideoCore Shared Memory (CMA) driver
+  KCONFIG:= \
+    CONFIG_BCM_VC_SM_CMA
+  FILES:= \
+    $(LINUX_DIR)/drivers/staging/vc04_services/vc-sm-cma/vc-sm-cma.ko
+  $(call AddDepends/video,@TARGET_brcm2708)
+endef
+
+define KernelPackage/vc-sm-cma/description
+  Shared memory interface that supports sharing dmabufs with VideoCore.
+  This operates over the VCHIQ interface to a service running on VideoCore.
+endef
+
+$(eval $(call KernelPackage,vc-sm-cma))
+
+
+define KernelPackage/vchiq-mmal-bcm2835
+  TITLE:=BCM2835 MMAL VCHIQ service
+  KCONFIG:= \
+    CONFIG_BCM2835_VCHIQ_MMAL \
+    CONFIG_VIDEO_CODEC_BCM2835=n
+  FILES:= \
+    $(LINUX_DIR)/drivers/staging/vc04_services/vchiq-mmal/bcm2835-mmal-vchiq.ko
+  $(call AddDepends/video,@TARGET_brcm2708 +kmod-vc-sm-cma)
+endef
+
+define KernelPackage/vchiq-mmal-bcm2835/description
+  Enables the MMAL API over VCHIQ as used for the
+  majority of the multimedia services on VideoCore.
+endef
+
+$(eval $(call KernelPackage,vchiq-mmal-bcm2835))

target/linux/brcm2708/patches-4.19/950-0001-arm-partially-revert-702b94bff3c50542a6e4ab9a4f4cef0.patch

@@ -0,0 +1,99 @@
+From d76972193fe88bb13028ba8277736a6aec4b8c8a Mon Sep 17 00:00:00 2001
+From: Dan Pasanen <dan.pasanen@gmail.com>
+Date: Thu, 21 Sep 2017 09:55:42 -0500
+Subject: [PATCH 001/703] arm: partially revert
+ 702b94bff3c50542a6e4ab9a4f4cef093262fe65
+
+* Re-expose some dmi APIs for use in VCSM
+---
+ arch/arm/include/asm/cacheflush.h | 21 +++++++++++++++++++++
+ arch/arm/include/asm/glue-cache.h |  2 ++
+ arch/arm/mm/proc-macros.S         |  2 ++
+ arch/arm/mm/proc-syms.c           |  3 +++
+ 4 files changed, 28 insertions(+)
+
+--- a/arch/arm/include/asm/cacheflush.h
++++ b/arch/arm/include/asm/cacheflush.h
+@@ -94,6 +94,21 @@
+  *	DMA Cache Coherency
+  *	===================
+  *
++ *	dma_inv_range(start, end)
++ *
++ *		Invalidate (discard) the specified virtual address range.
++ *		May not write back any entries.  If 'start' or 'end'
++ *		are not cache line aligned, those lines must be written
++ *		back.
++ *		- start  - virtual start address
++ *		- end    - virtual end address
++ *
++ *	dma_clean_range(start, end)
++ *
++ *		Clean (write back) the specified virtual address range.
++ *		- start  - virtual start address
++ *		- end    - virtual end address
++ *
+  *	dma_flush_range(start, end)
+  *
+  *		Clean and invalidate the specified virtual address range.
+@@ -115,6 +130,8 @@ struct cpu_cache_fns {
+ 	void (*dma_map_area)(const void *, size_t, int);
+ 	void (*dma_unmap_area)(const void *, size_t, int);
+ 
++	void (*dma_inv_range)(const void *, const void *);
++	void (*dma_clean_range)(const void *, const void *);
+ 	void (*dma_flush_range)(const void *, const void *);
+ } __no_randomize_layout;
+ 
+@@ -140,6 +157,8 @@ extern struct cpu_cache_fns cpu_cache;
+  * is visible to DMA, or data written by DMA to system memory is
+  * visible to the CPU.
+  */
++#define dmac_inv_range			cpu_cache.dma_inv_range
++#define dmac_clean_range		cpu_cache.dma_clean_range
+ #define dmac_flush_range		cpu_cache.dma_flush_range
+ 
+ #else
+@@ -159,6 +178,8 @@ extern void __cpuc_flush_dcache_area(voi
+  * is visible to DMA, or data written by DMA to system memory is
+  * visible to the CPU.
+  */
++extern void dmac_inv_range(const void *, const void *);
++extern void dmac_clean_range(const void *, const void *);
+ extern void dmac_flush_range(const void *, const void *);
+ 
+ #endif
+--- a/arch/arm/include/asm/glue-cache.h
++++ b/arch/arm/include/asm/glue-cache.h
+@@ -158,6 +158,8 @@ static inline void nop_dma_unmap_area(co
+ #define __cpuc_coherent_user_range	__glue(_CACHE,_coherent_user_range)
+ #define __cpuc_flush_dcache_area	__glue(_CACHE,_flush_kern_dcache_area)
+ 
++#define dmac_inv_range			__glue(_CACHE,_dma_inv_range)
++#define dmac_clean_range		__glue(_CACHE,_dma_clean_range)
+ #define dmac_flush_range		__glue(_CACHE,_dma_flush_range)
+ #endif
+ 
+--- a/arch/arm/mm/proc-macros.S
++++ b/arch/arm/mm/proc-macros.S
+@@ -335,6 +335,8 @@ ENTRY(\name\()_cache_fns)
+ 	.long	\name\()_flush_kern_dcache_area
+ 	.long	\name\()_dma_map_area
+ 	.long	\name\()_dma_unmap_area
++	.long	\name\()_dma_inv_range
++	.long	\name\()_dma_clean_range
+ 	.long	\name\()_dma_flush_range
+ 	.size	\name\()_cache_fns, . - \name\()_cache_fns
+ .endm
+--- a/arch/arm/mm/proc-syms.c
++++ b/arch/arm/mm/proc-syms.c
+@@ -30,6 +30,9 @@ EXPORT_SYMBOL(__cpuc_flush_user_all);
+ EXPORT_SYMBOL(__cpuc_flush_user_range);
+ EXPORT_SYMBOL(__cpuc_coherent_kern_range);
+ EXPORT_SYMBOL(__cpuc_flush_dcache_area);
++EXPORT_SYMBOL(dmac_inv_range);
++EXPORT_SYMBOL(dmac_clean_range);
++EXPORT_SYMBOL(dmac_flush_range);
+ #else
+ EXPORT_SYMBOL(cpu_cache);
+ #endif

target/linux/brcm2708/patches-4.19/950-0002-smsx95xx-fix-crimes-against-truesize.patch

@@ -0,0 +1,47 @@
+From 8f4948a1503a76cbeb5823d8b17990bf3a3c57a6 Mon Sep 17 00:00:00 2001
+From: Steve Glendinning <steve.glendinning@smsc.com>
+Date: Thu, 19 Feb 2015 18:47:12 +0000
+Subject: [PATCH 002/703] smsx95xx: fix crimes against truesize
+
+smsc95xx is adjusting truesize when it shouldn't, and following a recent patch from Eric this is now triggering warnings.
+
+This patch stops smsc95xx from changing truesize.
+
+Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
+---
+ drivers/net/usb/smsc95xx.c | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/usb/smsc95xx.c
++++ b/drivers/net/usb/smsc95xx.c
+@@ -82,6 +82,10 @@ static bool turbo_mode = true;
+ module_param(turbo_mode, bool, 0644);
+ MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
+ 
++static bool truesize_mode = false;
++module_param(truesize_mode, bool, 0644);
++MODULE_PARM_DESC(truesize_mode, "Report larger truesize value");
++
+ static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
+ 					    u32 *data, int in_pm)
+ {
+@@ -1972,7 +1976,8 @@ static int smsc95xx_rx_fixup(struct usbn
+ 				if (dev->net->features & NETIF_F_RXCSUM)
+ 					smsc95xx_rx_csum_offload(skb);
+ 				skb_trim(skb, skb->len - 4); /* remove fcs */
+-				skb->truesize = size + sizeof(struct sk_buff);
++				if (truesize_mode)
++					skb->truesize = size + sizeof(struct sk_buff);
+ 
+ 				return 1;
+ 			}
+@@ -1990,7 +1995,8 @@ static int smsc95xx_rx_fixup(struct usbn
+ 			if (dev->net->features & NETIF_F_RXCSUM)
+ 				smsc95xx_rx_csum_offload(ax_skb);
+ 			skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */
+-			ax_skb->truesize = size + sizeof(struct sk_buff);
++			if (truesize_mode)
++				ax_skb->truesize = size + sizeof(struct sk_buff);
+ 
+ 			usbnet_skb_return(dev, ax_skb);
+ 		}

target/linux/brcm2708/patches-4.19/950-0003-smsc95xx-Experimental-Enable-turbo_mode-and-packetsi.patch

@@ -0,0 +1,43 @@
+From 623b0f5e0a439af4beef58317b224d4d3d2a969c Mon Sep 17 00:00:00 2001
+From: Sam Nazarko <email@samnazarko.co.uk>
+Date: Fri, 1 Apr 2016 17:27:21 +0100
+Subject: [PATCH 003/703] smsc95xx: Experimental: Enable turbo_mode and
+ packetsize=2560 by default
+
+See: http://forum.kodi.tv/showthread.php?tid=285288
+---
+ drivers/net/usb/smsc95xx.c | 14 +++++++++-----
+ 1 file changed, 9 insertions(+), 5 deletions(-)
+
+--- a/drivers/net/usb/smsc95xx.c
++++ b/drivers/net/usb/smsc95xx.c
+@@ -86,6 +86,10 @@ static bool truesize_mode = false;
+ module_param(truesize_mode, bool, 0644);
+ MODULE_PARM_DESC(truesize_mode, "Report larger truesize value");
+ 
++static int packetsize = 2560;
++module_param(packetsize, int, 0644);
++MODULE_PARM_DESC(packetsize, "Override the RX URB packet size");
++
+ static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
+ 					    u32 *data, int in_pm)
+ {
+@@ -1109,13 +1113,13 @@ static int smsc95xx_reset(struct usbnet
+ 
+ 	if (!turbo_mode) {
+ 		burst_cap = 0;
+-		dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE;
++		dev->rx_urb_size = packetsize ? packetsize : MAX_SINGLE_PACKET_SIZE;
+ 	} else if (dev->udev->speed == USB_SPEED_HIGH) {
+-		burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
+-		dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE;
++		dev->rx_urb_size = packetsize ? packetsize : DEFAULT_HS_BURST_CAP_SIZE;
++		burst_cap = dev->rx_urb_size / HS_USB_PKT_SIZE;
+ 	} else {
+-		burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
+-		dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE;
++		dev->rx_urb_size = packetsize ? packetsize : DEFAULT_FS_BURST_CAP_SIZE;
++		burst_cap = dev->rx_urb_size / FS_USB_PKT_SIZE;
+ 	}
+ 
+ 	netif_dbg(dev, ifup, dev->net, "rx_urb_size=%ld\n",

target/linux/brcm2708/patches-4.19/950-0004-Allow-mac-address-to-be-set-in-smsc95xx.patch

@@ -0,0 +1,96 @@
+From 80592905099a4f0fa5d166d58785eacef968ba4e Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Tue, 26 Mar 2013 17:26:38 +0000
+Subject: [PATCH 004/703] Allow mac address to be set in smsc95xx
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/net/usb/smsc95xx.c | 56 ++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 56 insertions(+)
+
+--- a/drivers/net/usb/smsc95xx.c
++++ b/drivers/net/usb/smsc95xx.c
+@@ -60,6 +60,7 @@
+ #define SUSPEND_SUSPEND3		(0x08)
+ #define SUSPEND_ALLMODES		(SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \
+ 					 SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3)
++#define MAC_ADDR_LEN                    (6)
+ 
+ #define CARRIER_CHECK_DELAY (2 * HZ)
+ 
+@@ -90,6 +91,10 @@ static int packetsize = 2560;
+ module_param(packetsize, int, 0644);
+ MODULE_PARM_DESC(packetsize, "Override the RX URB packet size");
+ 
++static char *macaddr = ":";
++module_param(macaddr, charp, 0);
++MODULE_PARM_DESC(macaddr, "MAC address");
++
+ static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
+ 					    u32 *data, int in_pm)
+ {
+@@ -921,6 +926,53 @@ static int smsc95xx_ioctl(struct net_dev
+ 	return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
+ }
+ 
++/* Check the macaddr module parameter for a MAC address */
++static int smsc95xx_is_macaddr_param(struct usbnet *dev, u8 *dev_mac)
++{
++       int i, j, got_num, num;
++       u8 mtbl[MAC_ADDR_LEN];
++
++       if (macaddr[0] == ':')
++               return 0;
++
++       i = 0;
++       j = 0;
++       num = 0;
++       got_num = 0;
++       while (j < MAC_ADDR_LEN) {
++               if (macaddr[i] && macaddr[i] != ':') {
++                       got_num++;
++                       if ('0' <= macaddr[i] && macaddr[i] <= '9')
++                               num = num * 16 + macaddr[i] - '0';
++                       else if ('A' <= macaddr[i] && macaddr[i] <= 'F')
++                               num = num * 16 + 10 + macaddr[i] - 'A';
++                       else if ('a' <= macaddr[i] && macaddr[i] <= 'f')
++                               num = num * 16 + 10 + macaddr[i] - 'a';
++                       else
++                               break;
++                       i++;
++               } else if (got_num == 2) {
++                       mtbl[j++] = (u8) num;
++                       num = 0;
++                       got_num = 0;
++                       i++;
++               } else {
++                       break;
++               }
++       }
++
++       if (j == MAC_ADDR_LEN) {
++               netif_dbg(dev, ifup, dev->net, "Overriding MAC address with: "
++               "%02x:%02x:%02x:%02x:%02x:%02x\n", mtbl[0], mtbl[1], mtbl[2],
++                                               mtbl[3], mtbl[4], mtbl[5]);
++               for (i = 0; i < MAC_ADDR_LEN; i++)
++                       dev_mac[i] = mtbl[i];
++               return 1;
++       } else {
++               return 0;
++       }
++}
++
+ static void smsc95xx_init_mac_address(struct usbnet *dev)
+ {
+ 	const u8 *mac_addr;
+@@ -942,6 +994,10 @@ static void smsc95xx_init_mac_address(st
+ 		}
+ 	}
+ 
++	/* Check module parameters */
++	if (smsc95xx_is_macaddr_param(dev, dev->net->dev_addr))
++		return;
++
+ 	/* no useful static MAC address found. generate a random one */
+ 	eth_hw_addr_random(dev->net);
+ 	netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr\n");

target/linux/brcm2708/patches-4.19/950-0005-Protect-__release_resource-against-resources-without.patch

@@ -0,0 +1,28 @@
+From b5e65f6a5a75c72d56d98c9543ff549710aa2d72 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 13 Mar 2015 12:43:36 +0000
+Subject: [PATCH 005/703] Protect __release_resource against resources without
+ parents
+
+Without this patch, removing a device tree overlay can crash here.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ kernel/resource.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/kernel/resource.c
++++ b/kernel/resource.c
+@@ -213,6 +213,12 @@ static int __release_resource(struct res
+ {
+ 	struct resource *tmp, **p, *chd;
+ 
++	if (!old->parent) {
++		WARN(old->sibling, "sibling but no parent");
++		if (old->sibling)
++			return -EINVAL;
++		return 0;
++	}
+ 	p = &old->parent->child;
+ 	for (;;) {
+ 		tmp = *p;

target/linux/brcm2708/patches-4.19/950-0006-irq-bcm2836-Prevent-spurious-interrupts-and-trap-the.patch

@@ -0,0 +1,27 @@
+From da00086d33452442af1009580f8e40164fc4e97f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 4 Dec 2015 17:41:50 +0000
+Subject: [PATCH 006/703] irq-bcm2836: Prevent spurious interrupts, and trap
+ them early
+
+The old arch-specific IRQ macros included a dsb to ensure the
+write to clear the mailbox interrupt completed before returning
+from the interrupt. The BCM2836 irqchip driver needs the same
+precaution to avoid spurious interrupts.
+
+Spurious interrupts are still possible for other reasons,
+though, so trap them early.
+---
+ drivers/irqchip/irq-bcm2836.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/irqchip/irq-bcm2836.c
++++ b/drivers/irqchip/irq-bcm2836.c
+@@ -144,6 +144,7 @@ __exception_irq_entry bcm2836_arm_irqchi
+ 		u32 ipi = ffs(mbox_val) - 1;
+ 
+ 		writel(1 << ipi, mailbox0);
++		dsb(sy);
+ 		handle_IPI(ipi, regs);
+ #endif
+ 	} else if (stat) {

target/linux/brcm2708/patches-4.19/950-0007-irq-bcm2836-Avoid-Invalid-trigger-warning.patch

@@ -0,0 +1,24 @@
+From 23f28161eadbc84b976b1a6ff4c8e4fdfa38aa93 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 9 Feb 2017 14:33:30 +0000
+Subject: [PATCH 007/703] irq-bcm2836: Avoid "Invalid trigger warning"
+
+Initialise the level for each IRQ to avoid a warning from the
+arm arch timer code.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/irqchip/irq-bcm2836.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/irqchip/irq-bcm2836.c
++++ b/drivers/irqchip/irq-bcm2836.c
+@@ -124,7 +124,7 @@ static int bcm2836_map(struct irq_domain
+ 	irq_set_percpu_devid(irq);
+ 	irq_domain_set_info(d, irq, hw, chip, d->host_data,
+ 			    handle_percpu_devid_irq, NULL, NULL);
+-	irq_set_status_flags(irq, IRQ_NOAUTOEN);
++	irq_set_status_flags(irq, IRQ_NOAUTOEN | IRQ_TYPE_LEVEL_LOW);
+ 
+ 	return 0;
+ }

target/linux/brcm2708/patches-4.19/950-0008-irqchip-bcm2835-Add-FIQ-support.patch

@@ -0,0 +1,127 @@
+From 06cc1d14e061ef7169947f09f1e356cec9e0a790 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Fri, 12 Jun 2015 19:01:05 +0200
+Subject: [PATCH 008/703] irqchip: bcm2835: Add FIQ support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Add a duplicate irq range with an offset on the hwirq's so the
+driver can detect that enable_fiq() is used.
+Tested with downstream dwc_otg USB controller driver.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+Reviewed-by: Eric Anholt <eric@anholt.net>
+Acked-by: Stephen Warren <swarren@wwwdotorg.org>
+---
+ arch/arm/mach-bcm/Kconfig     |  1 +
+ drivers/irqchip/irq-bcm2835.c | 51 +++++++++++++++++++++++++++++++----
+ 2 files changed, 47 insertions(+), 5 deletions(-)
+
+--- a/arch/arm/mach-bcm/Kconfig
++++ b/arch/arm/mach-bcm/Kconfig
+@@ -165,6 +165,7 @@ config ARCH_BCM2835
+ 	select HAVE_ARM_ARCH_TIMER if ARCH_MULTI_V7
+ 	select TIMER_OF
+ 	select BCM2835_TIMER
++	select FIQ
+ 	select PINCTRL
+ 	select PINCTRL_BCM2835
+ 	help
+--- a/drivers/irqchip/irq-bcm2835.c
++++ b/drivers/irqchip/irq-bcm2835.c
+@@ -54,7 +54,7 @@
+ #include <asm/exception.h>
+ 
+ /* Put the bank and irq (32 bits) into the hwirq */
+-#define MAKE_HWIRQ(b, n)	((b << 5) | (n))
++#define MAKE_HWIRQ(b, n)	(((b) << 5) | (n))
+ #define HWIRQ_BANK(i)		(i >> 5)
+ #define HWIRQ_BIT(i)		BIT(i & 0x1f)
+ 
+@@ -70,9 +70,13 @@
+ 					| SHORTCUT1_MASK | SHORTCUT2_MASK)
+ 
+ #define REG_FIQ_CONTROL		0x0c
++#define REG_FIQ_ENABLE		0x80
++#define REG_FIQ_DISABLE		0
+ 
+ #define NR_BANKS		3
+ #define IRQS_PER_BANK		32
++#define NUMBER_IRQS		MAKE_HWIRQ(NR_BANKS, 0)
++#define FIQ_START		(NR_IRQS_BANK0 + MAKE_HWIRQ(NR_BANKS - 1, 0))
+ 
+ static const int reg_pending[] __initconst = { 0x00, 0x04, 0x08 };
+ static const int reg_enable[] __initconst = { 0x18, 0x10, 0x14 };
+@@ -97,14 +101,38 @@ static void __exception_irq_entry bcm283
+ 	struct pt_regs *regs);
+ static void bcm2836_chained_handle_irq(struct irq_desc *desc);
+ 
++static inline unsigned int hwirq_to_fiq(unsigned long hwirq)
++{
++	hwirq -= NUMBER_IRQS;
++	/*
++	 * The hwirq numbering used in this driver is:
++	 *   BASE (0-7) GPU1 (32-63) GPU2 (64-95).
++	 * This differ from the one used in the FIQ register:
++	 *   GPU1 (0-31) GPU2 (32-63) BASE (64-71)
++	 */
++	if (hwirq >= 32)
++		return hwirq - 32;
++
++	return hwirq + 64;
++}
++
+ static void armctrl_mask_irq(struct irq_data *d)
+ {
+-	writel_relaxed(HWIRQ_BIT(d->hwirq), intc.disable[HWIRQ_BANK(d->hwirq)]);
++	if (d->hwirq >= NUMBER_IRQS)
++		writel_relaxed(REG_FIQ_DISABLE, intc.base + REG_FIQ_CONTROL);
++	else
++		writel_relaxed(HWIRQ_BIT(d->hwirq),
++			       intc.disable[HWIRQ_BANK(d->hwirq)]);
+ }
+ 
+ static void armctrl_unmask_irq(struct irq_data *d)
+ {
+-	writel_relaxed(HWIRQ_BIT(d->hwirq), intc.enable[HWIRQ_BANK(d->hwirq)]);
++	if (d->hwirq >= NUMBER_IRQS)
++		writel_relaxed(REG_FIQ_ENABLE | hwirq_to_fiq(d->hwirq),
++			       intc.base + REG_FIQ_CONTROL);
++	else
++		writel_relaxed(HWIRQ_BIT(d->hwirq),
++			       intc.enable[HWIRQ_BANK(d->hwirq)]);
+ }
+ 
+ static struct irq_chip armctrl_chip = {
+@@ -149,8 +177,9 @@ static int __init armctrl_of_init(struct
+ 	if (!base)
+ 		panic("%pOF: unable to map IC registers\n", node);
+ 
+-	intc.domain = irq_domain_add_linear(node, MAKE_HWIRQ(NR_BANKS, 0),
+-			&armctrl_ops, NULL);
++	intc.base = base;
++	intc.domain = irq_domain_add_linear(node, NUMBER_IRQS * 2,
++					    &armctrl_ops, NULL);
+ 	if (!intc.domain)
+ 		panic("%pOF: unable to create IRQ domain\n", node);
+ 
+@@ -180,6 +209,18 @@ static int __init armctrl_of_init(struct
+ 		set_handle_irq(bcm2835_handle_irq);
+ 	}
+ 
++	/* Make a duplicate irq range which is used to enable FIQ */
++	for (b = 0; b < NR_BANKS; b++) {
++		for (i = 0; i < bank_irqs[b]; i++) {
++			irq = irq_create_mapping(intc.domain,
++					MAKE_HWIRQ(b, i) + NUMBER_IRQS);
++			BUG_ON(irq <= 0);
++			irq_set_chip(irq, &armctrl_chip);
++			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
++		}
++	}
++	init_FIQ(FIQ_START);
++
+ 	return 0;
+ }
+ 

target/linux/brcm2708/patches-4.19/950-0009-irqchip-irq-bcm2835-Add-2836-FIQ-support.patch

@@ -0,0 +1,99 @@
+From 9c8894afe627b270aad44c64f4e70c659468d7ed Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Fri, 23 Oct 2015 16:26:55 +0200
+Subject: [PATCH 009/703] irqchip: irq-bcm2835: Add 2836 FIQ support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/irqchip/irq-bcm2835.c | 43 +++++++++++++++++++++++++++++++++--
+ 1 file changed, 41 insertions(+), 2 deletions(-)
+
+--- a/drivers/irqchip/irq-bcm2835.c
++++ b/drivers/irqchip/irq-bcm2835.c
+@@ -50,8 +50,11 @@
+ #include <linux/of_irq.h>
+ #include <linux/irqchip.h>
+ #include <linux/irqdomain.h>
++#include <linux/mfd/syscon.h>
++#include <linux/regmap.h>
+ 
+ #include <asm/exception.h>
++#include <asm/mach/irq.h>
+ 
+ /* Put the bank and irq (32 bits) into the hwirq */
+ #define MAKE_HWIRQ(b, n)	(((b) << 5) | (n))
+@@ -69,6 +72,9 @@
+ #define BANK0_VALID_MASK	(BANK0_HWIRQ_MASK | BANK1_HWIRQ | BANK2_HWIRQ \
+ 					| SHORTCUT1_MASK | SHORTCUT2_MASK)
+ 
++#undef ARM_LOCAL_GPU_INT_ROUTING
++#define ARM_LOCAL_GPU_INT_ROUTING 0x0c
++
+ #define REG_FIQ_CONTROL		0x0c
+ #define REG_FIQ_ENABLE		0x80
+ #define REG_FIQ_DISABLE		0
+@@ -94,6 +100,7 @@ struct armctrl_ic {
+ 	void __iomem *enable[NR_BANKS];
+ 	void __iomem *disable[NR_BANKS];
+ 	struct irq_domain *domain;
++	struct regmap *local_regmap;
+ };
+ 
+ static struct armctrl_ic intc __read_mostly;
+@@ -127,12 +134,35 @@ static void armctrl_mask_irq(struct irq_
+ 
+ static void armctrl_unmask_irq(struct irq_data *d)
+ {
+-	if (d->hwirq >= NUMBER_IRQS)
++	if (d->hwirq >= NUMBER_IRQS) {
++		if (num_online_cpus() > 1) {
++			unsigned int data;
++			int ret;
++
++			if (!intc.local_regmap) {
++				pr_err("FIQ is disabled due to missing regmap\n");
++				return;
++			}
++
++			ret = regmap_read(intc.local_regmap,
++					  ARM_LOCAL_GPU_INT_ROUTING, &data);
++			if (ret) {
++				pr_err("Failed to read int routing %d\n", ret);
++				return;
++			}
++
++			data &= ~0xc;
++			data |= (1 << 2);
++			regmap_write(intc.local_regmap,
++				     ARM_LOCAL_GPU_INT_ROUTING, data);
++		}
++
+ 		writel_relaxed(REG_FIQ_ENABLE | hwirq_to_fiq(d->hwirq),
+ 			       intc.base + REG_FIQ_CONTROL);
+-	else
++	} else {
+ 		writel_relaxed(HWIRQ_BIT(d->hwirq),
+ 			       intc.enable[HWIRQ_BANK(d->hwirq)]);
++	}
+ }
+ 
+ static struct irq_chip armctrl_chip = {
+@@ -209,6 +239,15 @@ static int __init armctrl_of_init(struct
+ 		set_handle_irq(bcm2835_handle_irq);
+ 	}
+ 
++	if (is_2836) {
++		intc.local_regmap =
++			syscon_regmap_lookup_by_compatible("brcm,bcm2836-arm-local");
++		if (IS_ERR(intc.local_regmap)) {
++			pr_err("Failed to get local register map. FIQ is disabled for cpus > 1\n");
++			intc.local_regmap = NULL;
++		}
++	}
++
+ 	/* Make a duplicate irq range which is used to enable FIQ */
+ 	for (b = 0; b < NR_BANKS; b++) {
+ 		for (i = 0; i < bank_irqs[b]; i++) {

target/linux/brcm2708/patches-4.19/950-0010-spidev-Add-spidev-compatible-string-to-silence-warni.patch

@@ -0,0 +1,21 @@
+From 97e88641862862585d6ae8aaae034946ceab8ceb Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 14 Jul 2015 10:26:09 +0100
+Subject: [PATCH 010/703] spidev: Add "spidev" compatible string to silence
+ warning
+
+See: https://github.com/raspberrypi/linux/issues/1054
+---
+ drivers/spi/spidev.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/spi/spidev.c
++++ b/drivers/spi/spidev.c
+@@ -670,6 +670,7 @@ static const struct of_device_id spidev_
+ 	{ .compatible = "ge,achc" },
+ 	{ .compatible = "semtech,sx1301" },
+ 	{ .compatible = "siliconlabs,si3210" },
++	{ .compatible = "spidev" },
+ 	{},
+ };
+ MODULE_DEVICE_TABLE(of, spidev_dt_ids);

target/linux/brcm2708/patches-4.19/950-0011-spi-bcm2835-Support-pin-groups-other-than-7-11.patch

@@ -0,0 +1,80 @@
+From 5d9d6d510a0e7d2e3eee1ed663f0157c719c90ec Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 24 Jun 2015 14:10:44 +0100
+Subject: [PATCH 011/703] spi-bcm2835: Support pin groups other than 7-11
+
+The spi-bcm2835 driver automatically uses GPIO chip-selects due to
+some unreliability of the native ones. In doing so it chooses the
+same pins as the native chip-selects would use, but the existing
+code always uses pins 7 and 8, wherever the SPI function is mapped.
+
+Search the pinctrl group assigned to the driver for pins that
+correspond to native chip-selects, and use those for GPIO chip-
+selects.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/spi/spi-bcm2835.c | 45 ++++++++++++++++++++++++++++++++-------
+ 1 file changed, 37 insertions(+), 8 deletions(-)
+
+--- a/drivers/spi/spi-bcm2835.c
++++ b/drivers/spi/spi-bcm2835.c
+@@ -686,6 +686,8 @@ static int bcm2835_spi_setup(struct spi_
+ {
+ 	int err;
+ 	struct gpio_chip *chip;
++	struct device_node *pins;
++	u32 pingroup_index;
+ 	/*
+ 	 * sanity checking the native-chipselects
+ 	 */
+@@ -702,15 +704,42 @@ static int bcm2835_spi_setup(struct spi_
+ 			"setup: only two native chip-selects are supported\n");
+ 		return -EINVAL;
+ 	}
+-	/* now translate native cs to GPIO */
+ 
+-	/* get the gpio chip for the base */
+-	chip = gpiochip_find("pinctrl-bcm2835", chip_match_name);
+-	if (!chip)
+-		return 0;
++	/* now translate native cs to GPIO */
++	/* first look for chip select pins in the devices pin groups */
++	for (pingroup_index = 0;
++	     (pins = of_parse_phandle(spi->master->dev.of_node,
++				     "pinctrl-0",
++				      pingroup_index)) != 0;
++	     pingroup_index++) {
++		u32 pin;
++		u32 pin_index;
++		for (pin_index = 0;
++		     of_property_read_u32_index(pins,
++						"brcm,pins",
++						pin_index,
++						&pin) == 0;
++		     pin_index++) {
++			if (((spi->chip_select == 0) &&
++			     ((pin == 8) || (pin == 36) || (pin == 46))) ||
++			    ((spi->chip_select == 1) &&
++			     ((pin == 7) || (pin == 35)))) {
++				spi->cs_gpio = pin;
++				break;
++			}
++		}
++		of_node_put(pins);
++	}
++	/* if that fails, assume GPIOs 7-11 are used */
++	if (!gpio_is_valid(spi->cs_gpio) ) {
++		/* get the gpio chip for the base */
++		chip = gpiochip_find("pinctrl-bcm2835", chip_match_name);
++		if (!chip)
++			return 0;
+ 
+-	/* and calculate the real CS */
+-	spi->cs_gpio = chip->base + 8 - spi->chip_select;
++		/* and calculate the real CS */
++		spi->cs_gpio = chip->base + 8 - spi->chip_select;
++	}
+ 
+ 	/* and set up the "mode" and level */
+ 	dev_info(&spi->dev, "setting up native-CS%i as GPIO %i\n",

target/linux/brcm2708/patches-4.19/950-0012-spi-bcm2835-Disable-forced-software-CS.patch

@@ -0,0 +1,34 @@
+From 8d654c03c8e0730e67fc4e7d6435da05ddf4e284 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 1 Jul 2016 22:09:24 +0100
+Subject: [PATCH 012/703] spi-bcm2835: Disable forced software CS
+
+Select software CS in bcm2708_common.dtsi, and disable the automatic
+conversion in the driver to allow hardware CS to be re-enabled with an
+overlay.
+
+See: https://github.com/raspberrypi/linux/issues/1547
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/spi/spi-bcm2835.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/spi/spi-bcm2835.c
++++ b/drivers/spi/spi-bcm2835.c
+@@ -705,6 +705,7 @@ static int bcm2835_spi_setup(struct spi_
+ 		return -EINVAL;
+ 	}
+ 
++#if 0
+ 	/* now translate native cs to GPIO */
+ 	/* first look for chip select pins in the devices pin groups */
+ 	for (pingroup_index = 0;
+@@ -754,6 +755,7 @@ static int bcm2835_spi_setup(struct spi_
+ 			spi->chip_select, spi->cs_gpio, err);
+ 		return err;
+ 	}
++#endif
+ 
+ 	return 0;
+ }

target/linux/brcm2708/patches-4.19/950-0013-spi-bcm2835-Remove-unused-code.patch

@@ -0,0 +1,88 @@
+From 5a6dcccb576167d1e50c922bfb7bf6cffbdaa671 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 8 Nov 2016 21:35:38 +0000
+Subject: [PATCH 013/703] spi-bcm2835: Remove unused code
+
+---
+ drivers/spi/spi-bcm2835.c | 61 ---------------------------------------
+ 1 file changed, 61 deletions(-)
+
+--- a/drivers/spi/spi-bcm2835.c
++++ b/drivers/spi/spi-bcm2835.c
+@@ -677,17 +677,8 @@ static void bcm2835_spi_set_cs(struct sp
+ 	bcm2835_wr(bs, BCM2835_SPI_CS, cs);
+ }
+ 
+-static int chip_match_name(struct gpio_chip *chip, void *data)
+-{
+-	return !strcmp(chip->label, data);
+-}
+-
+ static int bcm2835_spi_setup(struct spi_device *spi)
+ {
+-	int err;
+-	struct gpio_chip *chip;
+-	struct device_node *pins;
+-	u32 pingroup_index;
+ 	/*
+ 	 * sanity checking the native-chipselects
+ 	 */
+@@ -705,58 +696,6 @@ static int bcm2835_spi_setup(struct spi_
+ 		return -EINVAL;
+ 	}
+ 
+-#if 0
+-	/* now translate native cs to GPIO */
+-	/* first look for chip select pins in the devices pin groups */
+-	for (pingroup_index = 0;
+-	     (pins = of_parse_phandle(spi->master->dev.of_node,
+-				     "pinctrl-0",
+-				      pingroup_index)) != 0;
+-	     pingroup_index++) {
+-		u32 pin;
+-		u32 pin_index;
+-		for (pin_index = 0;
+-		     of_property_read_u32_index(pins,
+-						"brcm,pins",
+-						pin_index,
+-						&pin) == 0;
+-		     pin_index++) {
+-			if (((spi->chip_select == 0) &&
+-			     ((pin == 8) || (pin == 36) || (pin == 46))) ||
+-			    ((spi->chip_select == 1) &&
+-			     ((pin == 7) || (pin == 35)))) {
+-				spi->cs_gpio = pin;
+-				break;
+-			}
+-		}
+-		of_node_put(pins);
+-	}
+-	/* if that fails, assume GPIOs 7-11 are used */
+-	if (!gpio_is_valid(spi->cs_gpio) ) {
+-		/* get the gpio chip for the base */
+-		chip = gpiochip_find("pinctrl-bcm2835", chip_match_name);
+-		if (!chip)
+-			return 0;
+-
+-		/* and calculate the real CS */
+-		spi->cs_gpio = chip->base + 8 - spi->chip_select;
+-	}
+-
+-	/* and set up the "mode" and level */
+-	dev_info(&spi->dev, "setting up native-CS%i as GPIO %i\n",
+-		 spi->chip_select, spi->cs_gpio);
+-
+-	/* set up GPIO as output and pull to the correct level */
+-	err = gpio_direction_output(spi->cs_gpio,
+-				    (spi->mode & SPI_CS_HIGH) ? 0 : 1);
+-	if (err) {
+-		dev_err(&spi->dev,
+-			"could not set CS%i gpio %i as output: %i",
+-			spi->chip_select, spi->cs_gpio, err);
+-		return err;
+-	}
+-#endif
+-
+ 	return 0;
+ }
+ 

target/linux/brcm2708/patches-4.19/950-0014-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch

@@ -0,0 +1,101 @@
+From abbc7f81bb68293439c0a325b5a590d28b91b819 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Sat, 3 Oct 2015 22:22:55 +0200
+Subject: [PATCH 014/703] dmaengine: bcm2835: Load driver early and support
+ legacy API
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Load driver early since at least bcm2708_fb doesn't support deferred
+probing and even if it did, we don't want the video driver deferred.
+Support the legacy DMA API which is needed by bcm2708_fb.
+Don't mask out channel 2.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/dma/Kconfig       |  2 +-
+ drivers/dma/bcm2835-dma.c | 26 +++++++++++++++++++++++++-
+ 2 files changed, 26 insertions(+), 2 deletions(-)
+
+--- a/drivers/dma/Kconfig
++++ b/drivers/dma/Kconfig
+@@ -131,7 +131,7 @@ config COH901318
+ 
+ config DMA_BCM2835
+ 	tristate "BCM2835 DMA engine support"
+-	depends on ARCH_BCM2835
++	depends on ARCH_BCM2835 || ARCH_BCM2708 || ARCH_BCM2709
+ 	select DMA_ENGINE
+ 	select DMA_VIRTUAL_CHANNELS
+ 
+--- a/drivers/dma/bcm2835-dma.c
++++ b/drivers/dma/bcm2835-dma.c
+@@ -37,6 +37,7 @@
+ #include <linux/interrupt.h>
+ #include <linux/list.h>
+ #include <linux/module.h>
++#include <linux/platform_data/dma-bcm2708.h>
+ #include <linux/platform_device.h>
+ #include <linux/slab.h>
+ #include <linux/io.h>
+@@ -48,6 +49,7 @@
+ 
+ #define BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED 14
+ #define BCM2835_DMA_CHAN_NAME_SIZE 8
++#define BCM2835_DMA_BULK_MASK  BIT(0)
+ 
+ struct bcm2835_dmadev {
+ 	struct dma_device ddev;
+@@ -912,6 +914,9 @@ static int bcm2835_dma_probe(struct plat
+ 	base = devm_ioremap_resource(&pdev->dev, res);
+ 	if (IS_ERR(base))
+ 		return PTR_ERR(base);
++	rc = bcm_dmaman_probe(pdev, base, BCM2835_DMA_BULK_MASK);
++	if (rc)
++		dev_err(&pdev->dev, "Failed to initialize the legacy API\n");
+ 
+ 	od->base = base;
+ 
+@@ -950,6 +955,9 @@ static int bcm2835_dma_probe(struct plat
+ 		goto err_no_dma;
+ 	}
+ 
++	/* Channel 0 is used by the legacy API */
++	chans_available &= ~BCM2835_DMA_BULK_MASK;
++
+ 	/* get irqs for each channel that we support */
+ 	for (i = 0; i <= BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED; i++) {
+ 		/* skip masked out channels */
+@@ -1024,6 +1032,7 @@ static int bcm2835_dma_remove(struct pla
+ {
+ 	struct bcm2835_dmadev *od = platform_get_drvdata(pdev);
+ 
++	bcm_dmaman_remove(pdev);
+ 	dma_async_device_unregister(&od->ddev);
+ 	bcm2835_dma_free(od);
+ 
+@@ -1039,7 +1048,22 @@ static struct platform_driver bcm2835_dm
+ 	},
+ };
+ 
+-module_platform_driver(bcm2835_dma_driver);
++static int bcm2835_dma_init(void)
++{
++	return platform_driver_register(&bcm2835_dma_driver);
++}
++
++static void bcm2835_dma_exit(void)
++{
++	platform_driver_unregister(&bcm2835_dma_driver);
++}
++
++/*
++ * Load after serial driver (arch_initcall) so we see the messages if it fails,
++ * but before drivers (module_init) that need a DMA channel.
++ */
++subsys_initcall(bcm2835_dma_init);
++module_exit(bcm2835_dma_exit);
+ 
+ MODULE_ALIAS("platform:bcm2835-dma");
+ MODULE_DESCRIPTION("BCM2835 DMA engine driver");

target/linux/brcm2708/patches-4.19/950-0015-firmware-Updated-mailbox-header.patch

@@ -0,0 +1,36 @@
+From 8d00375a0645102bc58fc5c8e4c05efbcfbbbd71 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 25 Jan 2016 17:25:12 +0000
+Subject: [PATCH 015/703] firmware: Updated mailbox header
+
+---
+ include/soc/bcm2835/raspberrypi-firmware.h | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/include/soc/bcm2835/raspberrypi-firmware.h
++++ b/include/soc/bcm2835/raspberrypi-firmware.h
+@@ -12,6 +12,8 @@
+ #include <linux/types.h>
+ #include <linux/of_device.h>
+ 
++#define RPI_FIRMWARE_CHAN_FB		1
++
+ struct rpi_firmware;
+ 
+ enum rpi_firmware_property_status {
+@@ -76,6 +78,8 @@ enum rpi_firmware_property_tag {
+ 	RPI_FIRMWARE_GET_CUSTOMER_OTP =                       0x00030021,
+ 	RPI_FIRMWARE_GET_DOMAIN_STATE =                       0x00030030,
+ 	RPI_FIRMWARE_GET_THROTTLED =                          0x00030046,
++	RPI_FIRMWARE_GET_CLOCK_MEASURED =                     0x00030047,
++	RPI_FIRMWARE_NOTIFY_REBOOT =                          0x00030048,
+ 	RPI_FIRMWARE_SET_CLOCK_STATE =                        0x00038001,
+ 	RPI_FIRMWARE_SET_CLOCK_RATE =                         0x00038002,
+ 	RPI_FIRMWARE_SET_VOLTAGE =                            0x00038003,
+@@ -158,5 +162,6 @@ static inline struct rpi_firmware *rpi_f
+ 	return NULL;
+ }
+ #endif
++int rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data);
+ 
+ #endif /* __SOC_RASPBERRY_FIRMWARE_H__ */

target/linux/brcm2708/patches-4.19/950-0016-rtc-Add-SPI-alias-for-pcf2123-driver.patch

@@ -0,0 +1,20 @@
+From afbee813c2e801c74c1732eb4511e5fd32027245 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 15 Jun 2016 16:48:41 +0100
+Subject: [PATCH 016/703] rtc: Add SPI alias for pcf2123 driver
+
+Without this alias, Device Tree won't cause the driver
+to be loaded.
+
+See: https://github.com/raspberrypi/linux/pull/1510
+---
+ drivers/rtc/rtc-pcf2123.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/rtc/rtc-pcf2123.c
++++ b/drivers/rtc/rtc-pcf2123.c
+@@ -472,3 +472,4 @@ module_spi_driver(pcf2123_driver);
+ MODULE_AUTHOR("Chris Verges <chrisv@cyberswitching.com>");
+ MODULE_DESCRIPTION("NXP PCF2123 RTC driver");
+ MODULE_LICENSE("GPL");
++MODULE_ALIAS("spi:rtc-pcf2123");

target/linux/brcm2708/patches-4.19/950-0017-watchdog-bcm2835-Support-setting-reboot-partition.patch

@@ -0,0 +1,102 @@
+From 3091f3a65590ab446e9c637377efa55dc3b8996f Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Fri, 7 Oct 2016 16:50:59 +0200
+Subject: [PATCH 017/703] watchdog: bcm2835: Support setting reboot partition
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The Raspberry Pi firmware looks at the RSTS register to know which
+partition to boot from. The reboot syscall command
+LINUX_REBOOT_CMD_RESTART2 supports passing in a string argument.
+
+Add support for passing in a partition number 0..63 to boot from.
+Partition 63 is a special partiton indicating halt.
+If the partition doesn't exist, the firmware falls back to partition 0.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/watchdog/bcm2835_wdt.c | 49 +++++++++++++++++++---------------
+ 1 file changed, 27 insertions(+), 22 deletions(-)
+
+--- a/drivers/watchdog/bcm2835_wdt.c
++++ b/drivers/watchdog/bcm2835_wdt.c
+@@ -31,13 +31,7 @@
+ #define PM_RSTC_WRCFG_SET		0x00000030
+ #define PM_RSTC_WRCFG_FULL_RESET	0x00000020
+ #define PM_RSTC_RESET			0x00000102
+-
+-/*
+- * The Raspberry Pi firmware uses the RSTS register to know which partition
+- * to boot from. The partition value is spread into bits 0, 2, 4, 6, 8, 10.
+- * Partition 63 is a special partition used by the firmware to indicate halt.
+- */
+-#define PM_RSTS_RASPBERRYPI_HALT	0x555
++#define PM_RSTS_PARTITION_CLR          0xfffffaaa
+ 
+ #define SECS_TO_WDOG_TICKS(x) ((x) << 16)
+ #define WDOG_TICKS_TO_SECS(x) ((x) >> 16)
+@@ -94,9 +88,24 @@ static unsigned int bcm2835_wdt_get_time
+ 	return WDOG_TICKS_TO_SECS(ret & PM_WDOG_TIME_SET);
+ }
+ 
+-static void __bcm2835_restart(struct bcm2835_wdt *wdt)
++/*
++ * The Raspberry Pi firmware uses the RSTS register to know which partiton
++ * to boot from. The partiton value is spread into bits 0, 2, 4, 6, 8, 10.
++ * Partiton 63 is a special partition used by the firmware to indicate halt.
++ */
++
++static void __bcm2835_restart(struct bcm2835_wdt *wdt, u8 partition)
+ {
+-	u32 val;
++	u32 val, rsts;
++
++	rsts = (partition & BIT(0)) | ((partition & BIT(1)) << 1) |
++	       ((partition & BIT(2)) << 2) | ((partition & BIT(3)) << 3) |
++	       ((partition & BIT(4)) << 4) | ((partition & BIT(5)) << 5);
++
++	val = readl_relaxed(wdt->base + PM_RSTS);
++	val &= PM_RSTS_PARTITION_CLR;
++	val |= PM_PASSWORD | rsts;
++	writel_relaxed(val, wdt->base + PM_RSTS);
+ 
+ 	/* use a timeout of 10 ticks (~150us) */
+ 	writel_relaxed(10 | PM_PASSWORD, wdt->base + PM_WDOG);
+@@ -114,7 +123,13 @@ static int bcm2835_restart(struct watchd
+ {
+ 	struct bcm2835_wdt *wdt = watchdog_get_drvdata(wdog);
+ 
+-	__bcm2835_restart(wdt);
++	unsigned long long val;
++	u8 partition = 0;
++
++	if (data && !kstrtoull(data, 0, &val) && val <= 63)
++		partition = val;
++
++	__bcm2835_restart(wdt, partition);
+ 
+ 	return 0;
+ }
+@@ -152,19 +167,9 @@ static void bcm2835_power_off(void)
+ 		of_find_compatible_node(NULL, NULL, "brcm,bcm2835-pm-wdt");
+ 	struct platform_device *pdev = of_find_device_by_node(np);
+ 	struct bcm2835_wdt *wdt = platform_get_drvdata(pdev);
+-	u32 val;
+-
+-	/*
+-	 * We set the watchdog hard reset bit here to distinguish this reset
+-	 * from the normal (full) reset. bootcode.bin will not reboot after a
+-	 * hard reset.
+-	 */
+-	val = readl_relaxed(wdt->base + PM_RSTS);
+-	val |= PM_PASSWORD | PM_RSTS_RASPBERRYPI_HALT;
+-	writel_relaxed(val, wdt->base + PM_RSTS);
+ 
+-	/* Continue with normal reset mechanism */
+-	__bcm2835_restart(wdt);
++	/* Partition 63 tells the firmware that this is a halt */
++	__bcm2835_restart(wdt, 63);
+ }
+ 
+ static int bcm2835_wdt_probe(struct platform_device *pdev)

target/linux/brcm2708/patches-4.19/950-0018-reboot-Use-power-off-rather-than-busy-spinning-when-.patch

@@ -0,0 +1,23 @@
+From 49dc030939b6332a4d1dca0c2b12ea9f559dcf2f Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Tue, 5 Apr 2016 19:40:12 +0100
+Subject: [PATCH 018/703] reboot: Use power off rather than busy spinning when
+ halt is requested
+
+---
+ arch/arm/kernel/reboot.c | 4 +---
+ 1 file changed, 1 insertion(+), 3 deletions(-)
+
+--- a/arch/arm/kernel/reboot.c
++++ b/arch/arm/kernel/reboot.c
+@@ -105,9 +105,7 @@ void machine_shutdown(void)
+  */
+ void machine_halt(void)
+ {
+-	local_irq_disable();
+-	smp_send_stop();
+-	while (1);
++	machine_power_off();
+ }
+ 
+ /*

target/linux/brcm2708/patches-4.19/950-0019-bcm-Make-RASPBERRYPI_POWER-depend-on-PM.patch

@@ -0,0 +1,19 @@
+From 9fdc1aa7e5d82029afb4e14c3ef3613264f6eca0 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Wed, 9 Nov 2016 13:02:52 +0000
+Subject: [PATCH 019/703] bcm: Make RASPBERRYPI_POWER depend on PM
+
+---
+ drivers/soc/bcm/Kconfig | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/soc/bcm/Kconfig
++++ b/drivers/soc/bcm/Kconfig
+@@ -4,6 +4,7 @@ config RASPBERRYPI_POWER
+ 	bool "Raspberry Pi power domain driver"
+ 	depends on ARCH_BCM2835 || (COMPILE_TEST && OF)
+ 	depends on RASPBERRYPI_FIRMWARE=y
++	depends on PM
+ 	select PM_GENERIC_DOMAINS if PM
+ 	help
+ 	  This enables support for the RPi power domains which can be enabled

target/linux/brcm2708/patches-4.19/950-0020-Register-the-clocks-early-during-the-boot-process-so.patch

@@ -0,0 +1,45 @@
+From 4900c14f9c0f514162496e6a3f71c51a50e7b376 Mon Sep 17 00:00:00 2001
+From: Martin Sperl <kernel@martin.sperl.org>
+Date: Fri, 2 Sep 2016 16:45:27 +0100
+Subject: [PATCH 020/703] Register the clocks early during the boot process, so
+ that special/critical clocks can get enabled early on in the boot process
+ avoiding the risk of disabling a clock, pll_divider or pll when a claiming
+ driver fails to install propperly - maybe it needs to defer.
+
+Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 15 +++++++++++++--
+ 1 file changed, 13 insertions(+), 2 deletions(-)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -2184,8 +2184,15 @@ static int bcm2835_clk_probe(struct plat
+ 	if (ret)
+ 		return ret;
+ 
+-	return of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get,
++	ret = of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get,
+ 				      &cprman->onecell);
++	if (ret)
++		return ret;
++
++	/* note that we have registered all the clocks */
++	dev_dbg(dev, "registered %d clocks\n", asize);
++
++	return 0;
+ }
+ 
+ static const struct of_device_id bcm2835_clk_of_match[] = {
+@@ -2202,7 +2209,11 @@ static struct platform_driver bcm2835_cl
+ 	.probe          = bcm2835_clk_probe,
+ };
+ 
+-builtin_platform_driver(bcm2835_clk_driver);
++static int __init __bcm2835_clk_driver_init(void)
++{
++	return platform_driver_register(&bcm2835_clk_driver);
++}
++core_initcall(__bcm2835_clk_driver_init);
+ 
+ MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
+ MODULE_DESCRIPTION("BCM2835 clock driver");

target/linux/brcm2708/patches-4.19/950-0021-bcm2835-rng-Avoid-initialising-if-already-enabled.patch

@@ -0,0 +1,25 @@
+From bc5b619aa9eaa634e49483c95b3681171cb4d900 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Tue, 6 Dec 2016 17:05:39 +0000
+Subject: [PATCH 021/703] bcm2835-rng: Avoid initialising if already enabled
+
+Avoids the 0x40000 cycles of warmup again if firmware has already used it
+---
+ drivers/char/hw_random/bcm2835-rng.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/drivers/char/hw_random/bcm2835-rng.c
++++ b/drivers/char/hw_random/bcm2835-rng.c
+@@ -105,8 +105,10 @@ static int bcm2835_rng_init(struct hwrng
+ 	}
+ 
+ 	/* set warm-up count & enable */
+-	rng_writel(priv, RNG_WARMUP_COUNT, RNG_STATUS);
+-	rng_writel(priv, RNG_RBGEN, RNG_CTRL);
++	if (!(rng_readl(priv, RNG_CTRL) & RNG_RBGEN)) {
++		rng_writel(priv, RNG_WARMUP_COUNT, RNG_STATUS);
++		rng_writel(priv, RNG_RBGEN, RNG_CTRL);
++	}
+ 
+ 	return ret;
+ }

target/linux/brcm2708/patches-4.19/950-0022-kbuild-Ignore-dtco-targets-when-filtering-symbols.patch

@@ -0,0 +1,20 @@
+From 30a4c0ff154b3ce8fd0df9054d03cee55dacc8d0 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 24 Aug 2016 16:28:44 +0100
+Subject: [PATCH 022/703] kbuild: Ignore dtco targets when filtering symbols
+
+---
+ scripts/Kbuild.include | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/scripts/Kbuild.include
++++ b/scripts/Kbuild.include
+@@ -287,7 +287,7 @@ ksym_dep_filter =
+ 	    $(CPP) $(call flags_nodeps,c_flags) -D__KSYM_DEPS__ $< ;;        \
+ 	  as_*_S|cpp_s_S)                                                    \
+ 	    $(CPP) $(call flags_nodeps,a_flags) -D__KSYM_DEPS__ $< ;;        \
+-	  boot*|build*|cpp_its_S|*cpp_lds_S|dtc|host*|vdso*) : ;;            \
++	  boot*|build*|cpp_its_S|*cpp_lds_S|dtc*|host*|vdso*) : ;;            \
+ 	  *) echo "Don't know how to preprocess $(1)" >&2; false ;;          \
+ 	esac | tr ";" "\n" | sed -n 's/^.*=== __KSYM_\(.*\) ===.*$$/_\1/p'
+ 

target/linux/brcm2708/patches-4.19/950-0023-clk-bcm2835-Mark-used-PLLs-and-dividers-CRITICAL.patch

@@ -0,0 +1,28 @@
+From 06ad042c1d3b3471c478fee39a7539ac39b752ff Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 13 Feb 2017 17:20:08 +0000
+Subject: [PATCH 023/703] clk-bcm2835: Mark used PLLs and dividers CRITICAL
+
+The VPU configures and relies on several PLLs and dividers. Mark all
+enabled dividers and their PLLs as CRITICAL to prevent the kernel from
+switching them off.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -1362,6 +1362,11 @@ bcm2835_register_pll_divider(struct bcm2
+ 	divider->div.hw.init = &init;
+ 	divider->div.table = NULL;
+ 
++	if (!(cprman_read(cprman, data->cm_reg) & data->hold_mask)) {
++		init.flags |= CLK_IS_CRITICAL;
++		divider->div.flags |= CLK_IS_CRITICAL;
++	}
++
+ 	divider->cprman = cprman;
+ 	divider->data = data;
+ 

target/linux/brcm2708/patches-4.19/950-0024-clk-bcm2835-Add-claim-clocks-property.patch

@@ -0,0 +1,102 @@
+From 14e1d51f1737da7b2bf59df95db6f977179e0497 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 13 Feb 2017 17:20:08 +0000
+Subject: [PATCH 024/703] clk-bcm2835: Add claim-clocks property
+
+The claim-clocks property can be used to prevent PLLs and dividers
+from being marked as critical. It contains a vector of clock IDs,
+as defined by dt-bindings/clock/bcm2835.h.
+
+Use this mechanism to claim PLLD_DSI0, PLLD_DSI1, PLLH_AUX and
+PLLH_PIX for the vc4_kms_v3d driver.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 34 ++++++++++++++++++++++++++++++++--
+ 1 file changed, 32 insertions(+), 2 deletions(-)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -1294,6 +1294,8 @@ static const struct clk_ops bcm2835_vpu_
+ 	.debug_init = bcm2835_clock_debug_init,
+ };
+ 
++static bool bcm2835_clk_is_claimed(const char *name);
++
+ static struct clk_hw *bcm2835_register_pll(struct bcm2835_cprman *cprman,
+ 					   const struct bcm2835_pll_data *data)
+ {
+@@ -1310,6 +1312,9 @@ static struct clk_hw *bcm2835_register_p
+ 	init.ops = &bcm2835_pll_clk_ops;
+ 	init.flags = CLK_IGNORE_UNUSED;
+ 
++	if (!bcm2835_clk_is_claimed(data->name))
++		init.flags |= CLK_IS_CRITICAL;
++
+ 	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+ 	if (!pll)
+ 		return NULL;
+@@ -1363,8 +1368,10 @@ bcm2835_register_pll_divider(struct bcm2
+ 	divider->div.table = NULL;
+ 
+ 	if (!(cprman_read(cprman, data->cm_reg) & data->hold_mask)) {
+-		init.flags |= CLK_IS_CRITICAL;
+-		divider->div.flags |= CLK_IS_CRITICAL;
++		if (!bcm2835_clk_is_claimed(data->source_pll))
++			init.flags |= CLK_IS_CRITICAL;
++		if (!bcm2835_clk_is_claimed(data->name))
++			divider->div.flags |= CLK_IS_CRITICAL;
+ 	}
+ 
+ 	divider->cprman = cprman;
+@@ -2116,6 +2123,8 @@ static const struct bcm2835_clk_desc clk
+ 		.ctl_reg = CM_PERIICTL),
+ };
+ 
++static bool bcm2835_clk_claimed[ARRAY_SIZE(clk_desc_array)];
++
+ /*
+  * Permanently take a reference on the parent of the SDRAM clock.
+  *
+@@ -2135,6 +2144,19 @@ static int bcm2835_mark_sdc_parent_criti
+ 	return clk_prepare_enable(parent);
+ }
+ 
++static bool bcm2835_clk_is_claimed(const char *name)
++{
++	int i;
++
++	for (i = 0; i < ARRAY_SIZE(clk_desc_array); i++) {
++		const char *clk_name = *(const char **)(clk_desc_array[i].data);
++		if (!strcmp(name, clk_name))
++		    return bcm2835_clk_claimed[i];
++	}
++
++	return false;
++}
++
+ static int bcm2835_clk_probe(struct platform_device *pdev)
+ {
+ 	struct device *dev = &pdev->dev;
+@@ -2144,6 +2166,7 @@ static int bcm2835_clk_probe(struct plat
+ 	const struct bcm2835_clk_desc *desc;
+ 	const size_t asize = ARRAY_SIZE(clk_desc_array);
+ 	size_t i;
++	u32 clk_id;
+ 	int ret;
+ 
+ 	cprman = devm_kzalloc(dev,
+@@ -2159,6 +2182,13 @@ static int bcm2835_clk_probe(struct plat
+ 	if (IS_ERR(cprman->regs))
+ 		return PTR_ERR(cprman->regs);
+ 
++	memset(bcm2835_clk_claimed, 0, sizeof(bcm2835_clk_claimed));
++	for (i = 0;
++	     !of_property_read_u32_index(pdev->dev.of_node, "claim-clocks",
++					 i, &clk_id);
++	     i++)
++		bcm2835_clk_claimed[clk_id]= true;
++
+ 	memcpy(cprman->real_parent_names, cprman_parent_names,
+ 	       sizeof(cprman_parent_names));
+ 	of_clk_parent_fill(dev->of_node, cprman->real_parent_names,

target/linux/brcm2708/patches-4.19/950-0025-clk-bcm2835-Read-max-core-clock-from-firmware.patch

@@ -0,0 +1,115 @@
+From 9e24627b07ac0553c9fc00a069fcc10c22a3cb6f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 6 Mar 2017 09:06:18 +0000
+Subject: [PATCH 025/703] clk-bcm2835: Read max core clock from firmware
+
+The VPU is responsible for managing the core clock, usually under
+direction from the bcm2835-cpufreq driver but not via the clk-bcm2835
+driver. Since the core frequency can change without warning, it is
+safer to report the maximum clock rate to users of the core clock -
+I2C, SPI and the mini UART - to err on the safe side when calculating
+clock divisors.
+
+If the DT node for the clock driver includes a reference to the
+firmware node, use the firmware API to query the maximum core clock
+instead of reading the divider registers.
+
+Prior to this patch, a "100KHz" I2C bus was sometimes clocked at about
+160KHz. In particular, switching to the 4.9 kernel was likely to break
+SenseHAT usage on a Pi3.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 39 ++++++++++++++++++++++++++++++++++-
+ 1 file changed, 38 insertions(+), 1 deletion(-)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -44,6 +44,7 @@
+ #include <linux/platform_device.h>
+ #include <linux/slab.h>
+ #include <dt-bindings/clock/bcm2835.h>
++#include <soc/bcm2835/raspberrypi-firmware.h>
+ 
+ #define CM_PASSWORD		0x5a000000
+ 
+@@ -298,6 +299,8 @@
+ #define LOCK_TIMEOUT_NS		100000000
+ #define BCM2835_MAX_FB_RATE	1750000000u
+ 
++#define VCMSG_ID_CORE_CLOCK     4
++
+ /*
+  * Names of clocks used within the driver that need to be replaced
+  * with an external parent's name.  This array is in the order that
+@@ -316,6 +319,7 @@ static const char *const cprman_parent_n
+ struct bcm2835_cprman {
+ 	struct device *dev;
+ 	void __iomem *regs;
++	struct rpi_firmware *fw;
+ 	spinlock_t regs_lock; /* spinlock for all clocks */
+ 
+ 	/*
+@@ -998,6 +1002,30 @@ static unsigned long bcm2835_clock_get_r
+ 	return bcm2835_clock_rate_from_divisor(clock, parent_rate, div);
+ }
+ 
++static unsigned long bcm2835_clock_get_rate_vpu(struct clk_hw *hw,
++						unsigned long parent_rate)
++{
++	struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw);
++	struct bcm2835_cprman *cprman = clock->cprman;
++
++	if (cprman->fw) {
++		struct {
++			u32 id;
++			u32 val;
++		} packet;
++
++		packet.id = VCMSG_ID_CORE_CLOCK;
++		packet.val = 0;
++
++		if (!rpi_firmware_property(cprman->fw,
++					   RPI_FIRMWARE_GET_MAX_CLOCK_RATE,
++					   &packet, sizeof(packet)))
++			return packet.val;
++	}
++
++	return bcm2835_clock_get_rate(hw, parent_rate);
++}
++
+ static void bcm2835_clock_wait_busy(struct bcm2835_clock *clock)
+ {
+ 	struct bcm2835_cprman *cprman = clock->cprman;
+@@ -1286,7 +1314,7 @@ static int bcm2835_vpu_clock_is_on(struc
+  */
+ static const struct clk_ops bcm2835_vpu_clock_clk_ops = {
+ 	.is_prepared = bcm2835_vpu_clock_is_on,
+-	.recalc_rate = bcm2835_clock_get_rate,
++	.recalc_rate = bcm2835_clock_get_rate_vpu,
+ 	.set_rate = bcm2835_clock_set_rate,
+ 	.determine_rate = bcm2835_clock_determine_rate,
+ 	.set_parent = bcm2835_clock_set_parent,
+@@ -2165,6 +2193,7 @@ static int bcm2835_clk_probe(struct plat
+ 	struct resource *res;
+ 	const struct bcm2835_clk_desc *desc;
+ 	const size_t asize = ARRAY_SIZE(clk_desc_array);
++	struct device_node *fw_node;
+ 	size_t i;
+ 	u32 clk_id;
+ 	int ret;
+@@ -2182,6 +2211,14 @@ static int bcm2835_clk_probe(struct plat
+ 	if (IS_ERR(cprman->regs))
+ 		return PTR_ERR(cprman->regs);
+ 
++	fw_node = of_parse_phandle(dev->of_node, "firmware", 0);
++	if (fw_node) {
++		struct rpi_firmware *fw = rpi_firmware_get(NULL);
++		if (!fw)
++			return -EPROBE_DEFER;
++		cprman->fw = fw;
++	}
++
+ 	memset(bcm2835_clk_claimed, 0, sizeof(bcm2835_clk_claimed));
+ 	for (i = 0;
+ 	     !of_property_read_u32_index(pdev->dev.of_node, "claim-clocks",

target/linux/brcm2708/patches-4.19/950-0026-clk-bcm2835-Mark-GPIO-clocks-enabled-at-boot-as-crit.patch

@@ -0,0 +1,38 @@
+From fabb3595bd356f058329ff94a3c5e31df5d84217 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Mon, 9 May 2016 17:28:18 -0700
+Subject: [PATCH 026/703] clk: bcm2835: Mark GPIO clocks enabled at boot as
+ critical.
+
+These divide off of PLLD_PER and are used for the ethernet and wifi
+PHYs source PLLs.  Neither of them is currently represented by a phy
+device that would grab the clock for us.
+
+This keeps other drivers from killing the networking PHYs when they
+disable their own clocks and trigger PLLD_PER's refcount going to 0.
+
+v2: Skip marking as critical if they aren't on at boot.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -1454,6 +1454,15 @@ static struct clk_hw *bcm2835_register_c
+ 	init.flags = data->flags | CLK_IGNORE_UNUSED;
+ 
+ 	/*
++	 * Some GPIO clocks for ethernet/wifi PLLs are marked as
++	 * critical (since some platforms use them), but if the
++	 * firmware didn't have them turned on then they clearly
++	 * aren't actually critical.
++	 */
++	if ((cprman_read(cprman, data->ctl_reg) & CM_ENABLE) == 0)
++		init.flags &= ~CLK_IS_CRITICAL;
++
++	/*
+ 	 * Pass the CLK_SET_RATE_PARENT flag if we are allowed to propagate
+ 	 * rate changes on at least of the parents.
+ 	 */

target/linux/brcm2708/patches-4.19/950-0027-sound-Demote-deferral-errors-to-INFO-level.patch

@@ -0,0 +1,37 @@
+From 34dfe2b3ea493bc57c2b85280c28dbe0b3c1d1dc Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 9 Feb 2017 14:36:44 +0000
+Subject: [PATCH 027/703] sound: Demote deferral errors to INFO level
+
+At present there is no mechanism to specify driver load order,
+which can lead to deferrals and repeated retries until successful.
+Since this situation is expected, reduce the dmesg level to
+INFO and mention that the operation will be retried.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ sound/soc/soc-core.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+--- a/sound/soc/soc-core.c
++++ b/sound/soc/soc-core.c
+@@ -868,8 +868,8 @@ static int soc_bind_dai_link(struct snd_
+ 	cpu_dai_component.dai_name = dai_link->cpu_dai_name;
+ 	rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component);
+ 	if (!rtd->cpu_dai) {
+-		dev_info(card->dev, "ASoC: CPU DAI %s not registered\n",
+-			 dai_link->cpu_dai_name);
++		dev_info(card->dev, "ASoC: CPU DAI %s not registered - will retry\n",
++			dai_link->cpu_dai_name);
+ 		goto _err_defer;
+ 	}
+ 	snd_soc_rtdcom_add(rtd, rtd->cpu_dai->component);
+@@ -881,7 +881,7 @@ static int soc_bind_dai_link(struct snd_
+ 	for (i = 0; i < rtd->num_codecs; i++) {
+ 		codec_dais[i] = snd_soc_find_dai(&codecs[i]);
+ 		if (!codec_dais[i]) {
+-			dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n",
++			dev_info(card->dev, "ASoC: CODEC DAI %s not registered - will retry\n",
+ 				codecs[i].dai_name);
+ 			goto _err_defer;
+ 		}

target/linux/brcm2708/patches-4.19/950-0028-Update-vfpmodule.c.patch

@@ -0,0 +1,137 @@
+From dae5f48d60cccc2214a09c11b84373988e57e2f5 Mon Sep 17 00:00:00 2001
+From: Claggy3 <stephen.maclagan@hotmail.com>
+Date: Sat, 11 Feb 2017 14:00:30 +0000
+Subject: [PATCH 028/703] Update vfpmodule.c
+
+Christopher Alexander Tobias Schulze - May 2, 2015, 11:57 a.m.
+This patch fixes a problem with VFP state save and restore related
+to exception handling (panic with message "BUG: unsupported FP
+instruction in kernel mode") present on VFP11 floating point units
+(as used with ARM1176JZF-S CPUs, e.g. on first generation Raspberry
+Pi boards). This patch was developed and discussed on
+
+   https://github.com/raspberrypi/linux/issues/859
+
+A precondition to see the crashes is that floating point exception
+traps are enabled. In this case, the VFP11 might determine that a FPU
+operation needs to trap at a point in time when it is not possible to
+signal this to the ARM11 core any more. The VFP11 will then set the
+FPEXC.EX bit and store the trapped opcode in FPINST. (In some cases,
+a second opcode might have been accepted by the VFP11 before the
+exception was detected and could be reported to the ARM11 - in this
+case, the VFP11 also sets FPEXC.FP2V and stores the second opcode in
+FPINST2.)
+
+If FPEXC.EX is set, the VFP11 will "bounce" the next FPU opcode issued
+by the ARM11 CPU, which will be seen by the ARM11 as an undefined opcode
+trap. The VFP support code examines the FPEXC.EX and FPEXC.FP2V bits
+to decide what actions to take, i.e., whether to emulate the opcodes
+found in FPINST and FPINST2, and whether to retry the bounced instruction.
+
+If a user space application has left the VFP11 in this "pending trap"
+state, the next FPU opcode issued to the VFP11 might actually be the
+VSTMIA operation vfp_save_state() uses to store the FPU registers
+to memory (in our test cases, when building the signal stack frame).
+In this case, the kernel crashes as described above.
+
+This patch fixes the problem by making sure that vfp_save_state() is
+always entered with FPEXC.EX cleared. (The current value of FPEXC has
+already been saved, so this does not corrupt the context. Clearing
+FPEXC.EX has no effects on FPINST or FPINST2. Also note that many
+callers already modify FPEXC by setting FPEXC.EN before invoking
+vfp_save_state().)
+
+This patch also addresses a second problem related to FPEXC.EX: After
+returning from signal handling, the kernel reloads the VFP context
+from the user mode stack. However, the current code explicitly clears
+both FPEXC.EX and FPEXC.FP2V during reload. As VFP11 requires these
+bits to be preserved, this patch disables clearing them for VFP
+implementations belonging to architecture 1. There should be no
+negative side effects: the user can set both bits by executing FPU
+opcodes anyway, and while user code may now place arbitrary values
+into FPINST and FPINST2 (e.g., non-VFP ARM opcodes) the VFP support
+code knows which instructions can be emulated, and rejects other
+opcodes with "unhandled bounce" messages, so there should be no
+security impact from allowing reloading FPEXC.EX and FPEXC.FP2V.
+
+Signed-off-by: Christopher Alexander Tobias Schulze <cat.schulze@alice-dsl.net>
+---
+ arch/arm/vfp/vfpmodule.c | 25 +++++++++++++++++++------
+ 1 file changed, 19 insertions(+), 6 deletions(-)
+
+--- a/arch/arm/vfp/vfpmodule.c
++++ b/arch/arm/vfp/vfpmodule.c
+@@ -179,8 +179,11 @@ static int vfp_notifier(struct notifier_
+ 		 * case the thread migrates to a different CPU. The
+ 		 * restoring is done lazily.
+ 		 */
+-		if ((fpexc & FPEXC_EN) && vfp_current_hw_state[cpu])
++		if ((fpexc & FPEXC_EN) && vfp_current_hw_state[cpu]) {
++			/* vfp_save_state oopses on VFP11 if EX bit set */
++			fmxr(FPEXC, fpexc & ~FPEXC_EX);
+ 			vfp_save_state(vfp_current_hw_state[cpu], fpexc);
++		}
+ #endif
+ 
+ 		/*
+@@ -462,13 +465,16 @@ static int vfp_pm_suspend(void)
+ 	/* if vfp is on, then save state for resumption */
+ 	if (fpexc & FPEXC_EN) {
+ 		pr_debug("%s: saving vfp state\n", __func__);
++		/* vfp_save_state oopses on VFP11 if EX bit set */
++		fmxr(FPEXC, fpexc & ~FPEXC_EX);
+ 		vfp_save_state(&ti->vfpstate, fpexc);
+ 
+ 		/* disable, just in case */
+ 		fmxr(FPEXC, fmrx(FPEXC) & ~FPEXC_EN);
+ 	} else if (vfp_current_hw_state[ti->cpu]) {
+ #ifndef CONFIG_SMP
+-		fmxr(FPEXC, fpexc | FPEXC_EN);
++		/* vfp_save_state oopses on VFP11 if EX bit set */
++		fmxr(FPEXC, (fpexc & ~FPEXC_EX) | FPEXC_EN);
+ 		vfp_save_state(vfp_current_hw_state[ti->cpu], fpexc);
+ 		fmxr(FPEXC, fpexc);
+ #endif
+@@ -531,7 +537,8 @@ void vfp_sync_hwstate(struct thread_info
+ 		/*
+ 		 * Save the last VFP state on this CPU.
+ 		 */
+-		fmxr(FPEXC, fpexc | FPEXC_EN);
++		/* vfp_save_state oopses on VFP11 if EX bit set */
++		fmxr(FPEXC, (fpexc & ~FPEXC_EX) | FPEXC_EN);
+ 		vfp_save_state(&thread->vfpstate, fpexc | FPEXC_EN);
+ 		fmxr(FPEXC, fpexc);
+ 	}
+@@ -597,6 +604,7 @@ int vfp_restore_user_hwstate(struct user
+ 	struct thread_info *thread = current_thread_info();
+ 	struct vfp_hard_struct *hwstate = &thread->vfpstate.hard;
+ 	unsigned long fpexc;
++	u32 fpsid = fmrx(FPSID);
+ 
+ 	/* Disable VFP to avoid corrupting the new thread state. */
+ 	vfp_flush_hwstate(thread);
+@@ -619,8 +627,12 @@ int vfp_restore_user_hwstate(struct user
+ 	/* Ensure the VFP is enabled. */
+ 	fpexc |= FPEXC_EN;
+ 
+-	/* Ensure FPINST2 is invalid and the exception flag is cleared. */
+-	fpexc &= ~(FPEXC_EX | FPEXC_FP2V);
++	/* Mask FPXEC_EX and FPEXC_FP2V if not required by VFP arch */
++	if ((fpsid & FPSID_ARCH_MASK) != (1 << FPSID_ARCH_BIT)) {
++		/* Ensure FPINST2 is invalid and the exception flag is cleared. */
++		fpexc &= ~(FPEXC_EX | FPEXC_FP2V);
++	}
++
+ 	hwstate->fpexc = fpexc;
+ 
+ 	hwstate->fpinst = ufp_exc->fpinst;
+@@ -690,7 +702,8 @@ void kernel_neon_begin(void)
+ 	cpu = get_cpu();
+ 
+ 	fpexc = fmrx(FPEXC) | FPEXC_EN;
+-	fmxr(FPEXC, fpexc);
++	/* vfp_save_state oopses on VFP11 if EX bit set */
++	fmxr(FPEXC, fpexc & ~FPEXC_EX);
+ 
+ 	/*
+ 	 * Save the userland NEON/VFP state. Under UP,

target/linux/brcm2708/patches-4.19/950-0029-i2c-bcm2835-Add-debug-support.patch

@@ -0,0 +1,189 @@
+From c7e79d0b9906e274e220f568ed49e5f00ee5187f Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Tue, 1 Nov 2016 15:15:41 +0100
+Subject: [PATCH 029/703] i2c: bcm2835: Add debug support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This adds a debug module parameter to aid in debugging transfer issues
+by printing info to the kernel log. When enabled, status values are
+collected in the interrupt routine and msg info in
+bcm2835_i2c_start_transfer(). This is done in a way that tries to avoid
+affecting timing. Having printk in the isr can mask issues.
+
+debug values (additive):
+1: Print info on error
+2: Print info on all transfers
+3: Print messages before transfer is started
+
+The value can be changed at runtime:
+/sys/module/i2c_bcm2835/parameters/debug
+
+Example output, debug=3:
+[  747.114448] bcm2835_i2c_xfer: msg(1/2) write addr=0x54, len=2 flags= [i2c1]
+[  747.114463] bcm2835_i2c_xfer: msg(2/2) read addr=0x54, len=32 flags= [i2c1]
+[  747.117809] start_transfer: msg(1/2) write addr=0x54, len=2 flags= [i2c1]
+[  747.117825] isr: remain=2, status=0x30000055 : TA TXW TXD TXE  [i2c1]
+[  747.117839] start_transfer: msg(2/2) read addr=0x54, len=32 flags= [i2c1]
+[  747.117849] isr: remain=32, status=0xd0000039 : TA RXR TXD RXD  [i2c1]
+[  747.117861] isr: remain=20, status=0xd0000039 : TA RXR TXD RXD  [i2c1]
+[  747.117870] isr: remain=8, status=0x32 : DONE TXD RXD  [i2c1]
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/i2c/busses/i2c-bcm2835.c | 99 +++++++++++++++++++++++++++++++-
+ 1 file changed, 98 insertions(+), 1 deletion(-)
+
+--- a/drivers/i2c/busses/i2c-bcm2835.c
++++ b/drivers/i2c/busses/i2c-bcm2835.c
+@@ -56,6 +56,18 @@
+ #define BCM2835_I2C_CDIV_MIN	0x0002
+ #define BCM2835_I2C_CDIV_MAX	0xFFFE
+ 
++static unsigned int debug;
++module_param(debug, uint, 0644);
++MODULE_PARM_DESC(debug, "1=err, 2=isr, 3=xfer");
++
++#define BCM2835_DEBUG_MAX	512
++struct bcm2835_debug {
++	struct i2c_msg *msg;
++	int msg_idx;
++	size_t remain;
++	u32 status;
++};
++
+ struct bcm2835_i2c_dev {
+ 	struct device *dev;
+ 	void __iomem *regs;
+@@ -69,8 +81,78 @@ struct bcm2835_i2c_dev {
+ 	u32 msg_err;
+ 	u8 *msg_buf;
+ 	size_t msg_buf_remaining;
++	struct bcm2835_debug debug[BCM2835_DEBUG_MAX];
++	unsigned int debug_num;
++	unsigned int debug_num_msgs;
+ };
+ 
++static inline void bcm2835_debug_add(struct bcm2835_i2c_dev *i2c_dev, u32 s)
++{
++	if (!i2c_dev->debug_num_msgs || i2c_dev->debug_num >= BCM2835_DEBUG_MAX)
++		return;
++
++	i2c_dev->debug[i2c_dev->debug_num].msg = i2c_dev->curr_msg;
++	i2c_dev->debug[i2c_dev->debug_num].msg_idx =
++				i2c_dev->debug_num_msgs - i2c_dev->num_msgs;
++	i2c_dev->debug[i2c_dev->debug_num].remain = i2c_dev->msg_buf_remaining;
++	i2c_dev->debug[i2c_dev->debug_num].status = s;
++	i2c_dev->debug_num++;
++}
++
++static void bcm2835_debug_print_status(struct bcm2835_i2c_dev *i2c_dev,
++				       struct bcm2835_debug *d)
++{
++	u32 s = d->status;
++
++	pr_info("isr: remain=%zu, status=0x%x : %s%s%s%s%s%s%s%s%s%s [i2c%d]\n",
++		d->remain, s,
++		s & BCM2835_I2C_S_TA ? "TA " : "",
++		s & BCM2835_I2C_S_DONE ? "DONE " : "",
++		s & BCM2835_I2C_S_TXW ? "TXW " : "",
++		s & BCM2835_I2C_S_RXR ? "RXR " : "",
++		s & BCM2835_I2C_S_TXD ? "TXD " : "",
++		s & BCM2835_I2C_S_RXD ? "RXD " : "",
++		s & BCM2835_I2C_S_TXE ? "TXE " : "",
++		s & BCM2835_I2C_S_RXF ? "RXF " : "",
++		s & BCM2835_I2C_S_ERR ? "ERR " : "",
++		s & BCM2835_I2C_S_CLKT ? "CLKT " : "",
++		i2c_dev->adapter.nr);
++}
++
++static void bcm2835_debug_print_msg(struct bcm2835_i2c_dev *i2c_dev,
++				    struct i2c_msg *msg, int i, int total,
++				    const char *fname)
++{
++	pr_info("%s: msg(%d/%d) %s addr=0x%02x, len=%u flags=%s%s%s%s%s%s%s [i2c%d]\n",
++		fname, i, total,
++		msg->flags & I2C_M_RD ? "read" : "write", msg->addr, msg->len,
++		msg->flags & I2C_M_TEN ? "TEN" : "",
++		msg->flags & I2C_M_RECV_LEN ? "RECV_LEN" : "",
++		msg->flags & I2C_M_NO_RD_ACK ? "NO_RD_ACK" : "",
++		msg->flags & I2C_M_IGNORE_NAK ? "IGNORE_NAK" : "",
++		msg->flags & I2C_M_REV_DIR_ADDR ? "REV_DIR_ADDR" : "",
++		msg->flags & I2C_M_NOSTART ? "NOSTART" : "",
++		msg->flags & I2C_M_STOP ? "STOP" : "",
++		i2c_dev->adapter.nr);
++}
++
++static void bcm2835_debug_print(struct bcm2835_i2c_dev *i2c_dev)
++{
++	struct bcm2835_debug *d;
++	unsigned int i;
++
++	for (i = 0; i < i2c_dev->debug_num; i++) {
++		d = &i2c_dev->debug[i];
++		if (d->status == ~0)
++			bcm2835_debug_print_msg(i2c_dev, d->msg, d->msg_idx,
++				i2c_dev->debug_num_msgs, "start_transfer");
++		else
++			bcm2835_debug_print_status(i2c_dev, d);
++	}
++	if (i2c_dev->debug_num >= BCM2835_DEBUG_MAX)
++		pr_info("BCM2835_DEBUG_MAX reached\n");
++}
++
+ static inline void bcm2835_i2c_writel(struct bcm2835_i2c_dev *i2c_dev,
+ 				      u32 reg, u32 val)
+ {
+@@ -189,6 +271,7 @@ static void bcm2835_i2c_start_transfer(s
+ 	bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_A, msg->addr);
+ 	bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_DLEN, msg->len);
+ 	bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C, c);
++	bcm2835_debug_add(i2c_dev, ~0);
+ }
+ 
+ static void bcm2835_i2c_finish_transfer(struct bcm2835_i2c_dev *i2c_dev)
+@@ -215,6 +298,7 @@ static irqreturn_t bcm2835_i2c_isr(int t
+ 	u32 val, err;
+ 
+ 	val = bcm2835_i2c_readl(i2c_dev, BCM2835_I2C_S);
++	bcm2835_debug_add(i2c_dev, val);
+ 
+ 	err = val & (BCM2835_I2C_S_CLKT | BCM2835_I2C_S_ERR);
+ 	if (err) {
+@@ -281,6 +365,13 @@ static int bcm2835_i2c_xfer(struct i2c_a
+ 	unsigned long time_left;
+ 	int i, ret;
+ 
++	if (debug)
++		i2c_dev->debug_num_msgs = num;
++
++	if (debug > 2)
++		for (i = 0; i < num; i++)
++			bcm2835_debug_print_msg(i2c_dev, &msgs[i], i + 1, num, __func__);
++
+ 	for (i = 0; i < (num - 1); i++)
+ 		if (msgs[i].flags & I2C_M_RD) {
+ 			dev_warn_once(i2c_dev->dev,
+@@ -303,6 +394,10 @@ static int bcm2835_i2c_xfer(struct i2c_a
+ 
+ 	bcm2835_i2c_finish_transfer(i2c_dev);
+ 
++	if (debug > 1 || (debug && (!time_left || i2c_dev->msg_err)))
++		bcm2835_debug_print(i2c_dev);
++	i2c_dev->debug_num_msgs = 0;
++	i2c_dev->debug_num = 0;
+ 	if (!time_left) {
+ 		bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C,
+ 				   BCM2835_I2C_C_CLEAR);
+@@ -313,7 +408,9 @@ static int bcm2835_i2c_xfer(struct i2c_a
+ 	if (!i2c_dev->msg_err)
+ 		return num;
+ 
+-	dev_dbg(i2c_dev->dev, "i2c transfer failed: %x\n", i2c_dev->msg_err);
++	if (debug)
++		dev_err(i2c_dev->dev, "i2c transfer failed: %x\n",
++			i2c_dev->msg_err);
+ 
+ 	if (i2c_dev->msg_err & BCM2835_I2C_S_ERR)
+ 		return -EREMOTEIO;

target/linux/brcm2708/patches-4.19/950-0030-mm-Remove-the-PFN-busy-warning.patch

@@ -0,0 +1,25 @@
+From 72ed3b77a672a8a94dab5d08739fac5b4df488d2 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Thu, 18 Dec 2014 16:07:15 -0800
+Subject: [PATCH 030/703] mm: Remove the PFN busy warning
+
+See commit dae803e165a11bc88ca8dbc07a11077caf97bbcb -- the warning is
+expected sometimes when using CMA.  However, that commit still spams
+my kernel log with these warnings.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ mm/page_alloc.c | 2 --
+ 1 file changed, 2 deletions(-)
+
+--- a/mm/page_alloc.c
++++ b/mm/page_alloc.c
+@@ -7972,8 +7972,6 @@ int alloc_contig_range(unsigned long sta
+ 
+ 	/* Make sure the range is really isolated. */
+ 	if (test_pages_isolated(outer_start, end, false)) {
+-		pr_info_ratelimited("%s: [%lx, %lx) PFNs busy\n",
+-			__func__, outer_start, end);
+ 		ret = -EBUSY;
+ 		goto done;
+ 	}

target/linux/brcm2708/patches-4.19/950-0031-ASoC-Add-prompt-for-ICS43432-codec.patch

@@ -0,0 +1,25 @@
+From 14e894cf24f588a4066b171b846934ebe44afc5d Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 23 Mar 2017 10:06:56 +0000
+Subject: [PATCH 031/703] ASoC: Add prompt for ICS43432 codec
+
+Without a prompt string, a config setting can't be included in a
+defconfig. Give CONFIG_SND_SOC_ICS43432 a prompt so that Pi soundcards
+can use the driver.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ sound/soc/codecs/Kconfig | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/sound/soc/codecs/Kconfig
++++ b/sound/soc/codecs/Kconfig
+@@ -616,7 +616,7 @@ config SND_SOC_HDAC_HDMI
+ 	select HDMI
+ 
+ config SND_SOC_ICS43432
+-	tristate
++	tristate "InvenSense ICS43432 I2S microphone codec"
+ 
+ config SND_SOC_INNO_RK3036
+ 	tristate "Inno codec driver for RK3036 SoC"

target/linux/brcm2708/patches-4.19/950-0032-irqchip-irq-bcm2836-Remove-regmap-and-syscon-use.patch

@@ -0,0 +1,112 @@
+From a580882d64f92ec0b025f6ddcfcea985412eb430 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 23 Jan 2018 16:52:45 +0000
+Subject: [PATCH 032/703] irqchip: irq-bcm2836: Remove regmap and syscon use
+
+The syscon node defines a register range that duplicates that used by
+the local_intc node on bcm2836/7. Since irq-bcm2835 and irq-bcm2836 are
+built in and always present together (both drivers are enabled by
+CONFIG_ARCH_BCM2835), it is possible to replace the syscon usage with a
+global variable that simplifies the code. Doing so does lose the
+locking provided by regmap, but as only one side is using the regmap
+interface (irq-bcm2835 uses readl and write) there is no loss of
+atomicity.
+
+See: https://github.com/raspberrypi/firmware/issues/926
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/irqchip/irq-bcm2835.c | 32 ++++++++++++--------------------
+ drivers/irqchip/irq-bcm2836.c |  5 +++++
+ 2 files changed, 17 insertions(+), 20 deletions(-)
+
+--- a/drivers/irqchip/irq-bcm2835.c
++++ b/drivers/irqchip/irq-bcm2835.c
+@@ -50,8 +50,6 @@
+ #include <linux/of_irq.h>
+ #include <linux/irqchip.h>
+ #include <linux/irqdomain.h>
+-#include <linux/mfd/syscon.h>
+-#include <linux/regmap.h>
+ 
+ #include <asm/exception.h>
+ #include <asm/mach/irq.h>
+@@ -100,7 +98,7 @@ struct armctrl_ic {
+ 	void __iomem *enable[NR_BANKS];
+ 	void __iomem *disable[NR_BANKS];
+ 	struct irq_domain *domain;
+-	struct regmap *local_regmap;
++	void __iomem *local_base;
+ };
+ 
+ static struct armctrl_ic intc __read_mostly;
+@@ -137,24 +135,20 @@ static void armctrl_unmask_irq(struct ir
+ 	if (d->hwirq >= NUMBER_IRQS) {
+ 		if (num_online_cpus() > 1) {
+ 			unsigned int data;
+-			int ret;
+ 
+-			if (!intc.local_regmap) {
+-				pr_err("FIQ is disabled due to missing regmap\n");
++			if (!intc.local_base) {
++				pr_err("FIQ is disabled due to missing arm_local_intc\n");
+ 				return;
+ 			}
+ 
+-			ret = regmap_read(intc.local_regmap,
+-					  ARM_LOCAL_GPU_INT_ROUTING, &data);
+-			if (ret) {
+-				pr_err("Failed to read int routing %d\n", ret);
+-				return;
+-			}
++			data = readl_relaxed(intc.local_base +
++					     ARM_LOCAL_GPU_INT_ROUTING);
+ 
+ 			data &= ~0xc;
+ 			data |= (1 << 2);
+-			regmap_write(intc.local_regmap,
+-				     ARM_LOCAL_GPU_INT_ROUTING, data);
++			writel_relaxed(data,
++				       intc.local_base +
++				       ARM_LOCAL_GPU_INT_ROUTING);
+ 		}
+ 
+ 		writel_relaxed(REG_FIQ_ENABLE | hwirq_to_fiq(d->hwirq),
+@@ -240,12 +234,10 @@ static int __init armctrl_of_init(struct
+ 	}
+ 
+ 	if (is_2836) {
+-		intc.local_regmap =
+-			syscon_regmap_lookup_by_compatible("brcm,bcm2836-arm-local");
+-		if (IS_ERR(intc.local_regmap)) {
+-			pr_err("Failed to get local register map. FIQ is disabled for cpus > 1\n");
+-			intc.local_regmap = NULL;
+-		}
++		extern void __iomem * __attribute__((weak)) arm_local_intc;
++		intc.local_base = arm_local_intc;
++		if (!intc.local_base)
++			pr_err("Failed to get local intc base. FIQ is disabled for cpus > 1\n");
+ 	}
+ 
+ 	/* Make a duplicate irq range which is used to enable FIQ */
+--- a/drivers/irqchip/irq-bcm2836.c
++++ b/drivers/irqchip/irq-bcm2836.c
+@@ -30,6 +30,9 @@ struct bcm2836_arm_irqchip_intc {
+ 
+ static struct bcm2836_arm_irqchip_intc intc  __read_mostly;
+ 
++void __iomem *arm_local_intc;
++EXPORT_SYMBOL_GPL(arm_local_intc);
++
+ static void bcm2836_arm_irqchip_mask_per_cpu_irq(unsigned int reg_offset,
+ 						 unsigned int bit,
+ 						 int cpu)
+@@ -234,6 +237,8 @@ static int __init bcm2836_arm_irqchip_l1
+ 		panic("%pOF: unable to map local interrupt registers\n", node);
+ 	}
+ 
++	arm_local_intc = intc.base;
++
+ 	bcm2835_init_local_timer_frequency();
+ 
+ 	intc.domain = irq_domain_add_linear(node, LAST_IRQ + 1,

target/linux/brcm2708/patches-4.19/950-0033-lan78xx-Enable-LEDs-and-auto-negotiation.patch

@@ -0,0 +1,48 @@
+From a3d3dea9ca36f4f5adbf741f36b06ce05b70c2bb Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 17 Oct 2017 15:04:29 +0100
+Subject: [PATCH 033/703] lan78xx: Enable LEDs and auto-negotiation
+
+For applications of the LAN78xx that don't have valid programmed
+EEPROMs or OTPs, enabling both LEDs and auto-negotiation by default
+seems reasonable.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/net/usb/lan78xx.c | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+--- a/drivers/net/usb/lan78xx.c
++++ b/drivers/net/usb/lan78xx.c
+@@ -2472,6 +2472,11 @@ static int lan78xx_reset(struct lan78xx_
+ 	int ret = 0;
+ 	unsigned long timeout;
+ 	u8 sig;
++	bool has_eeprom;
++	bool has_otp;
++
++	has_eeprom = !lan78xx_read_eeprom(dev, 0, 0, NULL);
++	has_otp = !lan78xx_read_otp(dev, 0, 0, NULL);
+ 
+ 	ret = lan78xx_read_reg(dev, HW_CFG, &buf);
+ 	buf |= HW_CFG_LRST_;
+@@ -2525,6 +2530,9 @@ static int lan78xx_reset(struct lan78xx_
+ 
+ 	ret = lan78xx_read_reg(dev, HW_CFG, &buf);
+ 	buf |= HW_CFG_MEF_;
++	/* If no valid EEPROM and no valid OTP, enable the LEDs by default */
++	if (!has_eeprom && !has_otp)
++	    buf |= HW_CFG_LED0_EN_ | HW_CFG_LED1_EN_;
+ 	ret = lan78xx_write_reg(dev, HW_CFG, buf);
+ 
+ 	ret = lan78xx_read_reg(dev, USB_CFG0, &buf);
+@@ -2580,6 +2588,9 @@ static int lan78xx_reset(struct lan78xx_
+ 			buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_;
+ 		}
+ 	}
++	/* If no valid EEPROM and no valid OTP, enable AUTO negotiation */
++	if (!has_eeprom && !has_otp)
++	    buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_;
+ 	ret = lan78xx_write_reg(dev, MAC_CR, buf);
+ 
+ 	ret = lan78xx_read_reg(dev, MAC_TX, &buf);

target/linux/brcm2708/patches-4.19/950-0034-amba_pl011-Don-t-use-DT-aliases-for-numbering.patch

@@ -0,0 +1,29 @@
+From 3ff31acbe9b371f1b9247cc50e7751eaf98b4cef Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 23 Feb 2016 17:26:48 +0000
+Subject: [PATCH 034/703] amba_pl011: Don't use DT aliases for numbering
+
+The pl011 driver looks for DT aliases of the form "serial<n>",
+and if found uses <n> as the device ID. This can cause
+/dev/ttyAMA0 to become /dev/ttyAMA1, which is confusing if the
+other serial port is provided by the 8250 driver which doesn't
+use the same logic.
+---
+ drivers/tty/serial/amba-pl011.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/tty/serial/amba-pl011.c
++++ b/drivers/tty/serial/amba-pl011.c
+@@ -2578,7 +2578,12 @@ static int pl011_setup_port(struct devic
+ 	if (IS_ERR(base))
+ 		return PTR_ERR(base);
+ 
++	/* Don't use DT serial<n> aliases - it causes the device to
++	   be renumbered to ttyAMA1 if it is the second serial port in the
++	   system, even though the other one is ttyS0. The 8250 driver
++	   doesn't use this logic, so always remains ttyS0.
+ 	index = pl011_probe_dt_alias(index, dev);
++	*/
+ 
+ 	uap->old_cr = 0;
+ 	uap->port.dev = dev;

target/linux/brcm2708/patches-4.19/950-0035-amba_pl011-Round-input-clock-up.patch

@@ -0,0 +1,86 @@
+From 5f626b06eb9efa01ca364a60378b3998d12e2f99 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 1 Mar 2017 16:07:39 +0000
+Subject: [PATCH 035/703] amba_pl011: Round input clock up
+
+The UART clock is initialised to be as close to the requested
+frequency as possible without exceeding it. Now that there is a
+clock manager that returns the actual frequencies, an expected
+48MHz clock is reported as 47999625. If the requested baudrate
+== requested clock/16, there is no headroom and the slight
+reduction in actual clock rate results in failure.
+
+Detect cases where it looks like a "round" clock was chosen and
+adjust the reported clock to match that "round" value. As the
+code comment says:
+
+/*
+ * If increasing a clock by less than 0.1% changes it
+ * from ..999.. to ..000.., round up.
+ */
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/tty/serial/amba-pl011.c | 23 +++++++++++++++++++++--
+ 1 file changed, 21 insertions(+), 2 deletions(-)
+
+--- a/drivers/tty/serial/amba-pl011.c
++++ b/drivers/tty/serial/amba-pl011.c
+@@ -1652,6 +1652,23 @@ static void pl011_put_poll_char(struct u
+ 
+ #endif /* CONFIG_CONSOLE_POLL */
+ 
++unsigned long pl011_clk_round(unsigned long clk)
++{
++	unsigned long scaler;
++
++	/*
++	 * If increasing a clock by less than 0.1% changes it
++	 * from ..999.. to ..000.., round up.
++	 */
++	scaler = 1;
++	while (scaler * 100000 < clk)
++		scaler *= 10;
++	if ((clk + scaler - 1)/scaler % 1000 == 0)
++		clk = (clk/scaler + 1) * scaler;
++
++	return clk;
++}
++
+ static int pl011_hwinit(struct uart_port *port)
+ {
+ 	struct uart_amba_port *uap =
+@@ -1668,7 +1685,7 @@ static int pl011_hwinit(struct uart_port
+ 	if (retval)
+ 		return retval;
+ 
+-	uap->port.uartclk = clk_get_rate(uap->clk);
++	uap->port.uartclk = pl011_clk_round(clk_get_rate(uap->clk));
+ 
+ 	/* Clear pending error and receive interrupts */
+ 	pl011_write(UART011_OEIS | UART011_BEIS | UART011_PEIS |
+@@ -2324,7 +2341,7 @@ static int __init pl011_console_setup(st
+ 			plat->init();
+ 	}
+ 
+-	uap->port.uartclk = clk_get_rate(uap->clk);
++	uap->port.uartclk = pl011_clk_round(clk_get_rate(uap->clk));
+ 
+ 	if (uap->vendor->fixed_options) {
+ 		baud = uap->fixed_baud;
+@@ -2509,6 +2526,7 @@ static struct uart_driver amba_reg = {
+ 	.cons			= AMBA_CONSOLE,
+ };
+ 
++#if 0
+ static int pl011_probe_dt_alias(int index, struct device *dev)
+ {
+ 	struct device_node *np;
+@@ -2540,6 +2558,7 @@ static int pl011_probe_dt_alias(int inde
+ 
+ 	return ret;
+ }
++#endif
+ 
+ /* unregisters the driver also if no more ports are left */
+ static void pl011_unregister_port(struct uart_amba_port *uap)

target/linux/brcm2708/patches-4.19/950-0036-amba_pl011-Insert-mb-for-correct-FIFO-handling.patch

@@ -0,0 +1,27 @@
+From 0ebd5e2c627c3c41a1081f6c1b7e7caa13e5b12e Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 29 Sep 2017 10:32:19 +0100
+Subject: [PATCH 036/703] amba_pl011: Insert mb() for correct FIFO handling
+
+The pl011 register accessor functions use the _relaxed versions of the
+standard readl() and writel() functions, meaning that there are no
+automatic memory barriers. When polling a FIFO status register to check
+for fullness, it is necessary to ensure that any outstanding writes have
+completed; otherwise the flags are effectively stale, making it possible
+that the next write is to a full FIFO.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/tty/serial/amba-pl011.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/tty/serial/amba-pl011.c
++++ b/drivers/tty/serial/amba-pl011.c
+@@ -1385,6 +1385,7 @@ static bool pl011_tx_char(struct uart_am
+ 		return false; /* unable to transmit character */
+ 
+ 	pl011_write(c, uap, REG_DR);
++	mb();
+ 	uap->port.icount.tx++;
+ 
+ 	return true;

target/linux/brcm2708/patches-4.19/950-0037-amba_pl011-Add-cts-event-workaround-DT-property.patch

@@ -0,0 +1,47 @@
+From 9106531665bc17788096fcbc00dac3dd8a4ba2e8 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 29 Sep 2017 10:32:19 +0100
+Subject: [PATCH 037/703] amba_pl011: Add cts-event-workaround DT property
+
+The BCM2835 PL011 implementation seems to have a bug that can lead to a
+transmission lockup if CTS changes frequently. A workaround was added to
+the driver with a vendor-specific flag to enable it, but this flag is
+currently not set for ARM implementations.
+
+Add a "cts-event-workaround" property to Pi DTBs and use the presence
+of that property to force the flag to be enabled in the driver.
+
+See: https://github.com/raspberrypi/linux/issues/1280
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ Documentation/devicetree/bindings/serial/pl011.txt | 3 +++
+ drivers/tty/serial/amba-pl011.c                    | 5 +++++
+ 2 files changed, 8 insertions(+)
+
+--- a/Documentation/devicetree/bindings/serial/pl011.txt
++++ b/Documentation/devicetree/bindings/serial/pl011.txt
+@@ -35,6 +35,9 @@ Optional properties:
+ - poll-timeout-ms:
+ 	   Poll timeout when auto-poll is set, default
+ 	   3000ms.
++- cts-event-workaround:
++	   Enables the (otherwise vendor-specific) workaround for the
++	   CTS-induced TX lockup.
+ 
+ See also bindings/arm/primecell.txt
+ 
+--- a/drivers/tty/serial/amba-pl011.c
++++ b/drivers/tty/serial/amba-pl011.c
+@@ -2661,6 +2661,11 @@ static int pl011_probe(struct amba_devic
+ 	if (IS_ERR(uap->clk))
+ 		return PTR_ERR(uap->clk);
+ 
++	if (of_property_read_bool(dev->dev.of_node, "cts-event-workaround")) {
++	    vendor->cts_event_workaround = true;
++	    dev_info(&dev->dev, "cts_event_workaround enabled\n");
++	}
++
+ 	uap->reg_offset = vendor->reg_offset;
+ 	uap->vendor = vendor;
+ 	uap->fifosize = vendor->get_fifosize(dev);

target/linux/brcm2708/patches-4.19/950-0038-pinctrl-bcm2835-Set-base-to-0-give-expected-gpio-num.patch

@@ -0,0 +1,22 @@
+From d52da4747de6ca008f86a73fbf153526c164c0ee Mon Sep 17 00:00:00 2001
+From: notro <notro@tronnes.org>
+Date: Thu, 10 Jul 2014 13:59:47 +0200
+Subject: [PATCH 038/703] pinctrl-bcm2835: Set base to 0 give expected gpio
+ numbering
+
+Signed-off-by: Noralf Tronnes <notro@tronnes.org>
+---
+ drivers/pinctrl/bcm/pinctrl-bcm2835.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
++++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+@@ -352,7 +352,7 @@ static const struct gpio_chip bcm2835_gp
+ 	.get_direction = bcm2835_gpio_get_direction,
+ 	.get = bcm2835_gpio_get,
+ 	.set = bcm2835_gpio_set,
+-	.base = -1,
++	.base = 0,
+ 	.ngpio = BCM2835_NUM_GPIOS,
+ 	.can_sleep = false,
+ };

target/linux/brcm2708/patches-4.19/950-0039-Main-bcm2708-bcm2709-linux-port.patch

@@ -0,0 +1,150 @@
+From 712b8ef1f284c70fc5612894c1a793c7d6b96eae Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Sun, 12 May 2013 12:24:19 +0100
+Subject: [PATCH 039/703] Main bcm2708/bcm2709 linux port
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+bcm2709: Drop platform smp and timer init code
+
+irq-bcm2836 handles this through these functions:
+bcm2835_init_local_timer_frequency()
+bcm2836_arm_irqchip_smp_init()
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+bcm270x: Use watchdog for reboot/poweroff
+
+The watchdog driver already has support for reboot/poweroff.
+Make use of this and remove the code from the platform files.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+board_bcm2835: Remove coherent dma pool increase - API has gone
+---
+ arch/arm/mach-bcm/Kconfig         |  1 +
+ arch/arm/mm/proc-v6.S             | 15 ++++++++++++---
+ drivers/irqchip/irq-bcm2835.c     |  7 ++++++-
+ drivers/mailbox/bcm2835-mailbox.c | 18 ++++++++++++++++--
+ 4 files changed, 35 insertions(+), 6 deletions(-)
+
+--- a/arch/arm/mach-bcm/Kconfig
++++ b/arch/arm/mach-bcm/Kconfig
+@@ -168,6 +168,7 @@ config ARCH_BCM2835
+ 	select FIQ
+ 	select PINCTRL
+ 	select PINCTRL_BCM2835
++	select MFD_SYSCON if ARCH_MULTI_V7
+ 	help
+ 	  This enables support for the Broadcom BCM2835 and BCM2836 SoCs.
+ 	  This SoC is used in the Raspberry Pi and Roku 2 devices.
+--- a/arch/arm/mm/proc-v6.S
++++ b/arch/arm/mm/proc-v6.S
+@@ -73,10 +73,19 @@ ENDPROC(cpu_v6_reset)
+  *
+  *	IRQs are already disabled.
+  */
++
++/* See jira SW-5991 for details of this workaround */
+ ENTRY(cpu_v6_do_idle)
+-	mov	r1, #0
+-	mcr	p15, 0, r1, c7, c10, 4		@ DWB - WFI may enter a low-power mode
+-	mcr	p15, 0, r1, c7, c0, 4		@ wait for interrupt
++	.align 5
++	mov     r1, #2
++1:	subs	r1, #1
++	nop
++	mcreq	p15, 0, r1, c7, c10, 4		@ DWB - WFI may enter a low-power mode
++	mcreq	p15, 0, r1, c7, c0, 4		@ wait for interrupt
++	nop
++	nop
++	nop
++	bne 1b
+ 	ret	lr
+ 
+ ENTRY(cpu_v6_dcache_clean_area)
+--- a/drivers/irqchip/irq-bcm2835.c
++++ b/drivers/irqchip/irq-bcm2835.c
+@@ -52,7 +52,9 @@
+ #include <linux/irqdomain.h>
+ 
+ #include <asm/exception.h>
++#ifndef CONFIG_ARM64
+ #include <asm/mach/irq.h>
++#endif
+ 
+ /* Put the bank and irq (32 bits) into the hwirq */
+ #define MAKE_HWIRQ(b, n)	(((b) << 5) | (n))
+@@ -80,6 +82,7 @@
+ #define NR_BANKS		3
+ #define IRQS_PER_BANK		32
+ #define NUMBER_IRQS		MAKE_HWIRQ(NR_BANKS, 0)
++#undef FIQ_START
+ #define FIQ_START		(NR_IRQS_BANK0 + MAKE_HWIRQ(NR_BANKS - 1, 0))
+ 
+ static const int reg_pending[] __initconst = { 0x00, 0x04, 0x08 };
+@@ -247,10 +250,12 @@ static int __init armctrl_of_init(struct
+ 					MAKE_HWIRQ(b, i) + NUMBER_IRQS);
+ 			BUG_ON(irq <= 0);
+ 			irq_set_chip(irq, &armctrl_chip);
+-			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
++			irq_set_probe(irq);
+ 		}
+ 	}
++#ifndef CONFIG_ARM64
+ 	init_FIQ(FIQ_START);
++#endif
+ 
+ 	return 0;
+ }
+--- a/drivers/mailbox/bcm2835-mailbox.c
++++ b/drivers/mailbox/bcm2835-mailbox.c
+@@ -51,12 +51,15 @@
+ #define MAIL1_WRT	(ARM_0_MAIL1 + 0x00)
+ #define MAIL1_STA	(ARM_0_MAIL1 + 0x18)
+ 
++/* On ARCH_BCM270x these come through <linux/interrupt.h> (arm_control.h ) */
++#ifndef ARM_MS_FULL
+ /* Status register: FIFO state. */
+ #define ARM_MS_FULL		BIT(31)
+ #define ARM_MS_EMPTY		BIT(30)
+ 
+ /* Configuration register: Enable interrupts. */
+ #define ARM_MC_IHAVEDATAIRQEN	BIT(0)
++#endif
+ 
+ struct bcm2835_mbox {
+ 	void __iomem *regs;
+@@ -151,7 +154,7 @@ static int bcm2835_mbox_probe(struct pla
+ 		return -ENOMEM;
+ 	spin_lock_init(&mbox->lock);
+ 
+-	ret = devm_request_irq(dev, irq_of_parse_and_map(dev->of_node, 0),
++	ret = devm_request_irq(dev, platform_get_irq(pdev, 0),
+ 			       bcm2835_mbox_irq, 0, dev_name(dev), mbox);
+ 	if (ret) {
+ 		dev_err(dev, "Failed to register a mailbox IRQ handler: %d\n",
+@@ -209,7 +212,18 @@ static struct platform_driver bcm2835_mb
+ 	.probe		= bcm2835_mbox_probe,
+ 	.remove		= bcm2835_mbox_remove,
+ };
+-module_platform_driver(bcm2835_mbox_driver);
++
++static int __init bcm2835_mbox_init(void)
++{
++	return platform_driver_register(&bcm2835_mbox_driver);
++}
++arch_initcall(bcm2835_mbox_init);
++
++static void __init bcm2835_mbox_exit(void)
++{
++	platform_driver_unregister(&bcm2835_mbox_driver);
++}
++module_exit(bcm2835_mbox_exit);
+ 
+ MODULE_AUTHOR("Lubomir Rintel <lkundrak@v3.sk>");
+ MODULE_DESCRIPTION("BCM2835 mailbox IPC driver");

target/linux/brcm2708/patches-4.19/950-0042-Speed-up-console-framebuffer-imageblit-function.patch

@@ -0,0 +1,209 @@
+From a1e59cb06aaa97771f2d39777017f8de6f237507 Mon Sep 17 00:00:00 2001
+From: Harm Hanemaaijer <fgenfb@yahoo.com>
+Date: Thu, 20 Jun 2013 20:21:39 +0200
+Subject: [PATCH 042/703] Speed up console framebuffer imageblit function
+
+Especially on platforms with a slower CPU but a relatively high
+framebuffer fill bandwidth, like current ARM devices, the existing
+console monochrome imageblit function used to draw console text is
+suboptimal for common pixel depths such as 16bpp and 32bpp. The existing
+code is quite general and can deal with several pixel depths. By creating
+special case functions for 16bpp and 32bpp, by far the most common pixel
+formats used on modern systems, a significant speed-up is attained
+which can be readily felt on ARM-based devices like the Raspberry Pi
+and the Allwinner platform, but should help any platform using the
+fb layer.
+
+The special case functions allow constant folding, eliminating a number
+of instructions including divide operations, and allow the use of an
+unrolled loop, eliminating instructions with a variable shift size,
+reducing source memory access instructions, and eliminating excessive
+branching. These unrolled loops also allow much better code optimization
+by the C compiler. The code that selects which optimized variant is used
+is also simplified, eliminating integer divide instructions.
+
+The speed-up, measured by timing 'cat file.txt' in the console, varies
+between 40% and 70%, when testing on the Raspberry Pi and Allwinner
+ARM-based platforms, depending on font size and the pixel depth, with
+the greater benefit for 32bpp.
+
+Signed-off-by: Harm Hanemaaijer <fgenfb@yahoo.com>
+---
+ drivers/video/fbdev/core/cfbimgblt.c | 152 ++++++++++++++++++++++++++-
+ 1 file changed, 147 insertions(+), 5 deletions(-)
+
+--- a/drivers/video/fbdev/core/cfbimgblt.c
++++ b/drivers/video/fbdev/core/cfbimgblt.c
+@@ -28,6 +28,11 @@
+  *
+  *  Also need to add code to deal with cards endians that are different than
+  *  the native cpu endians. I also need to deal with MSB position in the word.
++ *  Modified by Harm Hanemaaijer (fgenfb@yahoo.com) 2013:
++ *  - Provide optimized versions of fast_imageblit for 16 and 32bpp that are
++ *    significantly faster than the previous implementation.
++ *  - Simplify the fast/slow_imageblit selection code, avoiding integer
++ *    divides.
+  */
+ #include <linux/module.h>
+ #include <linux/string.h>
+@@ -262,6 +267,133 @@ static inline void fast_imageblit(const
+ 	}
+ }	
+ 	
++/*
++ * Optimized fast_imageblit for bpp == 16. ppw = 2, bit_mask = 3 folded
++ * into the code, main loop unrolled.
++ */
++
++static inline void fast_imageblit16(const struct fb_image *image,
++				    struct fb_info *p, u8 __iomem * dst1,
++				    u32 fgcolor, u32 bgcolor)
++{
++	u32 fgx = fgcolor, bgx = bgcolor;
++	u32 spitch = (image->width + 7) / 8;
++	u32 end_mask, eorx;
++	const char *s = image->data, *src;
++	u32 __iomem *dst;
++	const u32 *tab = NULL;
++	int i, j, k;
++
++	tab = fb_be_math(p) ? cfb_tab16_be : cfb_tab16_le;
++
++	fgx <<= 16;
++	bgx <<= 16;
++	fgx |= fgcolor;
++	bgx |= bgcolor;
++
++	eorx = fgx ^ bgx;
++	k = image->width / 2;
++
++	for (i = image->height; i--;) {
++		dst = (u32 __iomem *) dst1;
++		src = s;
++
++		j = k;
++		while (j >= 4) {
++			u8 bits = *src;
++			end_mask = tab[(bits >> 6) & 3];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 4) & 3];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 2) & 3];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[bits & 3];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			src++;
++			j -= 4;
++		}
++		if (j != 0) {
++			u8 bits = *src;
++			end_mask = tab[(bits >> 6) & 3];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			if (j >= 2) {
++				end_mask = tab[(bits >> 4) & 3];
++				FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++				if (j == 3) {
++					end_mask = tab[(bits >> 2) & 3];
++					FB_WRITEL((end_mask & eorx) ^ bgx, dst);
++				}
++			}
++		}
++		dst1 += p->fix.line_length;
++		s += spitch;
++	}
++}
++
++/*
++ * Optimized fast_imageblit for bpp == 32. ppw = 1, bit_mask = 1 folded
++ * into the code, main loop unrolled.
++ */
++
++static inline void fast_imageblit32(const struct fb_image *image,
++				    struct fb_info *p, u8 __iomem * dst1,
++				    u32 fgcolor, u32 bgcolor)
++{
++	u32 fgx = fgcolor, bgx = bgcolor;
++	u32 spitch = (image->width + 7) / 8;
++	u32 end_mask, eorx;
++	const char *s = image->data, *src;
++	u32 __iomem *dst;
++	const u32 *tab = NULL;
++	int i, j, k;
++
++	tab = cfb_tab32;
++
++	eorx = fgx ^ bgx;
++	k = image->width;
++
++	for (i = image->height; i--;) {
++		dst = (u32 __iomem *) dst1;
++		src = s;
++
++		j = k;
++		while (j >= 8) {
++			u8 bits = *src;
++			end_mask = tab[(bits >> 7) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 6) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 5) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 4) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 3) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 2) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 1) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[bits & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			src++;
++			j -= 8;
++		}
++		if (j != 0) {
++			u32 bits = (u32) * src;
++			while (j > 1) {
++				end_mask = tab[(bits >> 7) & 1];
++				FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++				bits <<= 1;
++				j--;
++			}
++			end_mask = tab[(bits >> 7) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst);
++		}
++		dst1 += p->fix.line_length;
++		s += spitch;
++	}
++}
++
+ void cfb_imageblit(struct fb_info *p, const struct fb_image *image)
+ {
+ 	u32 fgcolor, bgcolor, start_index, bitstart, pitch_index = 0;
+@@ -294,11 +426,21 @@ void cfb_imageblit(struct fb_info *p, co
+ 			bgcolor = image->bg_color;
+ 		}	
+ 		
+-		if (32 % bpp == 0 && !start_index && !pitch_index && 
+-		    ((width & (32/bpp-1)) == 0) &&
+-		    bpp >= 8 && bpp <= 32) 			
+-			fast_imageblit(image, p, dst1, fgcolor, bgcolor);
+-		else 
++		if (!start_index && !pitch_index) {
++			if (bpp == 32)
++				fast_imageblit32(image, p, dst1, fgcolor,
++						 bgcolor);
++			else if (bpp == 16 && (width & 1) == 0)
++				fast_imageblit16(image, p, dst1, fgcolor,
++						 bgcolor);
++			else if (bpp == 8 && (width & 3) == 0)
++				fast_imageblit(image, p, dst1, fgcolor,
++					       bgcolor);
++			else
++				slow_imageblit(image, p, dst1, fgcolor,
++					       bgcolor,
++					       start_index, pitch_index);
++		} else
+ 			slow_imageblit(image, p, dst1, fgcolor, bgcolor,
+ 					start_index, pitch_index);
+ 	} else

target/linux/brcm2708/patches-4.19/950-0043-dmaengine-Add-support-for-BCM2708.patch

@@ -0,0 +1,640 @@
+From 3b7f7192307a3cc84215a42c42065758dd638986 Mon Sep 17 00:00:00 2001
+From: Florian Meier <florian.meier@koalo.de>
+Date: Fri, 22 Nov 2013 14:22:53 +0100
+Subject: [PATCH 043/703] dmaengine: Add support for BCM2708
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Add support for DMA controller of BCM2708 as used in the Raspberry Pi.
+Currently it only supports cyclic DMA.
+
+Signed-off-by: Florian Meier <florian.meier@koalo.de>
+
+dmaengine: expand functionality by supporting scatter/gather transfers sdhci-bcm2708 and dma.c: fix for LITE channels
+
+DMA: fix cyclic LITE length overflow bug
+
+dmaengine: bcm2708: Remove chancnt affectations
+
+Mirror bcm2835-dma.c commit 9eba5536a7434c69d8c185d4bd1c70734d92287d:
+chancnt is already filled by dma_async_device_register, which uses the channel
+list to know how much channels there is.
+
+Since it's already filled, we can safely remove it from the drivers' probe
+function.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: overwrite dreq only if it is not set
+
+dreq is set when the DMA channel is fetched from Device Tree.
+slave_id is set using dmaengine_slave_config().
+Only overwrite dreq with slave_id if it is not set.
+
+dreq/slave_id in the cyclic DMA case is not touched, because I don't
+have hardware to test with.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: do device registration in the board file
+
+Don't register the device in the driver. Do it in the board file.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: don't restrict DT support to ARCH_BCM2835
+
+Both ARCH_BCM2835 and ARCH_BCM270x are built with OF now.
+Add Device Tree support to the non ARCH_BCM2835 case.
+Use the same driver name regardless of architecture.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+BCM270x_DT: add bcm2835-dma entry
+
+Add Device Tree entry for bcm2835-dma.
+The entry doesn't contain any resources since they are handled
+by the arch/arm/mach-bcm270x/dma.c driver.
+In non-DT mode, don't add the device in the board file.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+bcm2708-dmaengine: Add debug options
+
+BCM270x: Add memory and irq resources to dmaengine device and DT
+
+Prepare for merging of the legacy DMA API arch driver dma.c
+with bcm2708-dmaengine by adding memory and irq resources both
+to platform file device and Device Tree node.
+Don't use BCM_DMAMAN_DRIVER_NAME so we don't have to include mach/dma.h
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: Merge with arch dma.c driver and disable dma.c
+
+Merge the legacy DMA API driver with bcm2708-dmaengine.
+This is done so we can use bcm2708_fb on ARCH_BCM2835 (mailbox
+driver is also needed).
+
+Changes to the dma.c code:
+- Use BIT() macro.
+- Cutdown some comments to one line.
+- Add mutex to vc_dmaman and use this, since the dev lock is locked
+  during probing of the engine part.
+- Add global g_dmaman variable since drvdata is used by the engine part.
+- Restructure for readability:
+  vc_dmaman_chan_alloc()
+  vc_dmaman_chan_free()
+  bcm_dma_chan_free()
+- Restructure bcm_dma_chan_alloc() to simplify error handling.
+- Use device irq resources instead of hardcoded bcm_dma_irqs table.
+- Remove dev_dmaman_register() and code it directly.
+- Remove dev_dmaman_deregister() and code it directly.
+- Simplify bcm_dmaman_probe() using devm_* functions.
+- Get dmachans from DT if available.
+- Keep 'dma.dmachans' module argument name for backwards compatibility.
+
+Make it available on ARCH_BCM2835 as well.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: set residue_granularity field
+
+bcm2708-dmaengine supports residue reporting at burst level
+but didn't report this via the residue_granularity field.
+
+Without this field set properly we get playback issues with I2S cards.
+
+dmaengine: bcm2708-dmaengine: Fix memory leak when stopping a running transfer
+
+bcm2708-dmaengine: Use more DMA channels (but not 12)
+
+1) Only the bcm2708_fb drivers uses the legacy DMA API, and
+it requires a BULK-capable channel, so all other types
+(FAST, NORMAL and LITE) can be made available to the regular
+DMA API.
+
+2) DMA channels 11-14 share an interrupt. The driver can't
+handle this, so don't use channels 12-14 (12 was used, probably
+because it appears to have an interrupt, but in reality that
+interrupt is for activity on ANY channel). This may explain
+a lockup encountered when running out of DMA channels.
+
+The combined effect of this patch is to leave 7 DMA channels
+available + channel 0 for bcm2708_fb via the legacy API.
+
+See: https://github.com/raspberrypi/linux/issues/1110
+     https://github.com/raspberrypi/linux/issues/1108
+
+dmaengine: bcm2708: Make legacy API available for bcm2835-dma
+
+bcm2708_fb uses the legacy DMA API, so in order to start using
+bcm2835-dma, bcm2835-dma has to support the legacy API. Make this
+possible by exporting bcm_dmaman_probe() and bcm_dmaman_remove().
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: Change DT compatible string
+
+Both bcm2835-dma and bcm2708-dmaengine have the same compatible string.
+So change compatible to "brcm,bcm2708-dma".
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: Remove driver but keep legacy API
+
+Dropping non-DT support means we don't need this driver,
+but we still need the legacy DMA API.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+bcm2708-dmaengine - Fix arm64 portability/build issues
+
+dma-bcm2708: Fix module compilation of CONFIG_DMA_BCM2708
+
+bcm2708-dmaengine.c defines functions like bcm_dma_start which are
+defined as well in dma-bcm2708.h as inline versions when
+CONFIG_DMA_BCM2708 is not defined. This works fine when
+CONFIG_DMA_BCM2708 is built in, but when it is selected as module build
+fails with redefinition errors because in the build system when
+CONFIG_DMA_BCM2708 is selected as module, the macro becomes
+CONFIG_DMA_BCM2708_MODULE.
+
+This patch makes the header use CONFIG_DMA_BCM2708_MODULE too when
+available.
+
+Fixes https://github.com/raspberrypi/linux/issues/2056
+
+Signed-off-by: Andrei Gherzan <andrei@gherzan.com>
+---
+ drivers/dma/Kconfig                       |   6 +-
+ drivers/dma/Makefile                      |   1 +
+ drivers/dma/bcm2708-dmaengine.c           | 281 ++++++++++++++++++++++
+ include/linux/platform_data/dma-bcm2708.h | 143 +++++++++++
+ 4 files changed, 430 insertions(+), 1 deletion(-)
+ create mode 100644 drivers/dma/bcm2708-dmaengine.c
+ create mode 100644 include/linux/platform_data/dma-bcm2708.h
+
+--- a/drivers/dma/Kconfig
++++ b/drivers/dma/Kconfig
+@@ -131,7 +131,7 @@ config COH901318
+ 
+ config DMA_BCM2835
+ 	tristate "BCM2835 DMA engine support"
+-	depends on ARCH_BCM2835 || ARCH_BCM2708 || ARCH_BCM2709
++	depends on ARCH_BCM2835
+ 	select DMA_ENGINE
+ 	select DMA_VIRTUAL_CHANNELS
+ 
+@@ -576,6 +576,10 @@ config TIMB_DMA
+ 	help
+ 	  Enable support for the Timberdale FPGA DMA engine.
+ 
++config DMA_BCM2708
++	tristate "BCM2708 DMA legacy API support"
++	depends on DMA_BCM2835
++
+ config XGENE_DMA
+ 	tristate "APM X-Gene DMA support"
+ 	depends on ARCH_XGENE || COMPILE_TEST
+--- a/drivers/dma/Makefile
++++ b/drivers/dma/Makefile
+@@ -21,6 +21,7 @@ obj-$(CONFIG_AT_XDMAC) += at_xdmac.o
+ obj-$(CONFIG_AXI_DMAC) += dma-axi-dmac.o
+ obj-$(CONFIG_BCM_SBA_RAID) += bcm-sba-raid.o
+ obj-$(CONFIG_COH901318) += coh901318.o coh901318_lli.o
++obj-$(CONFIG_DMA_BCM2708) += bcm2708-dmaengine.o
+ obj-$(CONFIG_DMA_BCM2835) += bcm2835-dma.o
+ obj-$(CONFIG_DMA_JZ4740) += dma-jz4740.o
+ obj-$(CONFIG_DMA_JZ4780) += dma-jz4780.o
+--- /dev/null
++++ b/drivers/dma/bcm2708-dmaengine.c
+@@ -0,0 +1,281 @@
++/*
++ * BCM2708 legacy DMA API
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ */
++
++#include <linux/init.h>
++#include <linux/interrupt.h>
++#include <linux/list.h>
++#include <linux/module.h>
++#include <linux/platform_data/dma-bcm2708.h>
++#include <linux/platform_device.h>
++#include <linux/slab.h>
++#include <linux/io.h>
++#include <linux/spinlock.h>
++
++#include "virt-dma.h"
++
++#define CACHE_LINE_MASK 31
++#define DEFAULT_DMACHAN_BITMAP 0x10  /* channel 4 only */
++
++/* valid only for channels 0 - 14, 15 has its own base address */
++#define BCM2708_DMA_CHAN(n)	((n) << 8) /* base address */
++#define BCM2708_DMA_CHANIO(dma_base, n) \
++	((void __iomem *)((char *)(dma_base) + BCM2708_DMA_CHAN(n)))
++
++struct vc_dmaman {
++	void __iomem *dma_base;
++	u32 chan_available; /* bitmap of available channels */
++	u32 has_feature[BCM_DMA_FEATURE_COUNT]; /* bitmap of feature presence */
++	struct mutex lock;
++};
++
++static struct device *dmaman_dev;	/* we assume there's only one! */
++static struct vc_dmaman *g_dmaman;	/* DMA manager */
++
++/* DMA Auxiliary Functions */
++
++/* A DMA buffer on an arbitrary boundary may separate a cache line into a
++   section inside the DMA buffer and another section outside it.
++   Even if we flush DMA buffers from the cache there is always the chance that
++   during a DMA someone will access the part of a cache line that is outside
++   the DMA buffer - which will then bring in unwelcome data.
++   Without being able to dictate our own buffer pools we must insist that
++   DMA buffers consist of a whole number of cache lines.
++*/
++extern int bcm_sg_suitable_for_dma(struct scatterlist *sg_ptr, int sg_len)
++{
++	int i;
++
++	for (i = 0; i < sg_len; i++) {
++		if (sg_ptr[i].offset & CACHE_LINE_MASK ||
++		    sg_ptr[i].length & CACHE_LINE_MASK)
++			return 0;
++	}
++
++	return 1;
++}
++EXPORT_SYMBOL_GPL(bcm_sg_suitable_for_dma);
++
++extern void bcm_dma_start(void __iomem *dma_chan_base,
++			  dma_addr_t control_block)
++{
++	dsb(sy);	/* ARM data synchronization (push) operation */
++
++	writel(control_block, dma_chan_base + BCM2708_DMA_ADDR);
++	writel(BCM2708_DMA_ACTIVE, dma_chan_base + BCM2708_DMA_CS);
++}
++EXPORT_SYMBOL_GPL(bcm_dma_start);
++
++extern void bcm_dma_wait_idle(void __iomem *dma_chan_base)
++{
++	dsb(sy);
++
++	/* ugly busy wait only option for now */
++	while (readl(dma_chan_base + BCM2708_DMA_CS) & BCM2708_DMA_ACTIVE)
++		cpu_relax();
++}
++EXPORT_SYMBOL_GPL(bcm_dma_wait_idle);
++
++extern bool bcm_dma_is_busy(void __iomem *dma_chan_base)
++{
++	dsb(sy);
++
++	return readl(dma_chan_base + BCM2708_DMA_CS) & BCM2708_DMA_ACTIVE;
++}
++EXPORT_SYMBOL_GPL(bcm_dma_is_busy);
++
++/* Complete an ongoing DMA (assuming its results are to be ignored)
++   Does nothing if there is no DMA in progress.
++   This routine waits for the current AXI transfer to complete before
++   terminating the current DMA. If the current transfer is hung on a DREQ used
++   by an uncooperative peripheral the AXI transfer may never complete.	In this
++   case the routine times out and return a non-zero error code.
++   Use of this routine doesn't guarantee that the ongoing or aborted DMA
++   does not produce an interrupt.
++*/
++extern int bcm_dma_abort(void __iomem *dma_chan_base)
++{
++	unsigned long int cs;
++	int rc = 0;
++
++	cs = readl(dma_chan_base + BCM2708_DMA_CS);
++
++	if (BCM2708_DMA_ACTIVE & cs) {
++		long int timeout = 10000;
++
++		/* write 0 to the active bit - pause the DMA */
++		writel(0, dma_chan_base + BCM2708_DMA_CS);
++
++		/* wait for any current AXI transfer to complete */
++		while (0 != (cs & BCM2708_DMA_ISPAUSED) && --timeout >= 0)
++			cs = readl(dma_chan_base + BCM2708_DMA_CS);
++
++		if (0 != (cs & BCM2708_DMA_ISPAUSED)) {
++			/* we'll un-pause when we set of our next DMA */
++			rc = -ETIMEDOUT;
++
++		} else if (BCM2708_DMA_ACTIVE & cs) {
++			/* terminate the control block chain */
++			writel(0, dma_chan_base + BCM2708_DMA_NEXTCB);
++
++			/* abort the whole DMA */
++			writel(BCM2708_DMA_ABORT | BCM2708_DMA_ACTIVE,
++			       dma_chan_base + BCM2708_DMA_CS);
++		}
++	}
++
++	return rc;
++}
++EXPORT_SYMBOL_GPL(bcm_dma_abort);
++
++ /* DMA Manager Device Methods */
++
++static void vc_dmaman_init(struct vc_dmaman *dmaman, void __iomem *dma_base,
++			   u32 chans_available)
++{
++	dmaman->dma_base = dma_base;
++	dmaman->chan_available = chans_available;
++	dmaman->has_feature[BCM_DMA_FEATURE_FAST_ORD] = 0x0c;  /* 2 & 3 */
++	dmaman->has_feature[BCM_DMA_FEATURE_BULK_ORD] = 0x01;  /* 0 */
++	dmaman->has_feature[BCM_DMA_FEATURE_NORMAL_ORD] = 0xfe;  /* 1 to 7 */
++	dmaman->has_feature[BCM_DMA_FEATURE_LITE_ORD] = 0x7f00;  /* 8 to 14 */
++}
++
++static int vc_dmaman_chan_alloc(struct vc_dmaman *dmaman,
++				unsigned required_feature_set)
++{
++	u32 chans;
++	int chan = 0;
++	int feature;
++
++	chans = dmaman->chan_available;
++	for (feature = 0; feature < BCM_DMA_FEATURE_COUNT; feature++)
++		/* select the subset of available channels with the desired
++		   features */
++		if (required_feature_set & (1 << feature))
++			chans &= dmaman->has_feature[feature];
++
++	if (!chans)
++		return -ENOENT;
++
++	/* return the ordinal of the first channel in the bitmap */
++	while (chans != 0 && (chans & 1) == 0) {
++		chans >>= 1;
++		chan++;
++	}
++	/* claim the channel */
++	dmaman->chan_available &= ~(1 << chan);
++
++	return chan;
++}
++
++static int vc_dmaman_chan_free(struct vc_dmaman *dmaman, int chan)
++{
++	if (chan < 0)
++		return -EINVAL;
++
++	if ((1 << chan) & dmaman->chan_available)
++		return -EIDRM;
++
++	dmaman->chan_available |= (1 << chan);
++
++	return 0;
++}
++
++/* DMA Manager Monitor */
++
++extern int bcm_dma_chan_alloc(unsigned required_feature_set,
++			      void __iomem **out_dma_base, int *out_dma_irq)
++{
++	struct vc_dmaman *dmaman = g_dmaman;
++	struct platform_device *pdev = to_platform_device(dmaman_dev);
++	struct resource *r;
++	int chan;
++
++	if (!dmaman_dev)
++		return -ENODEV;
++
++	mutex_lock(&dmaman->lock);
++	chan = vc_dmaman_chan_alloc(dmaman, required_feature_set);
++	if (chan < 0)
++		goto out;
++
++	r = platform_get_resource(pdev, IORESOURCE_IRQ, (unsigned int)chan);
++	if (!r) {
++		dev_err(dmaman_dev, "failed to get irq for DMA channel %d\n",
++			chan);
++		vc_dmaman_chan_free(dmaman, chan);
++		chan = -ENOENT;
++		goto out;
++	}
++
++	*out_dma_base = BCM2708_DMA_CHANIO(dmaman->dma_base, chan);
++	*out_dma_irq = r->start;
++	dev_dbg(dmaman_dev,
++		"Legacy API allocated channel=%d, base=%p, irq=%i\n",
++		chan, *out_dma_base, *out_dma_irq);
++
++out:
++	mutex_unlock(&dmaman->lock);
++
++	return chan;
++}
++EXPORT_SYMBOL_GPL(bcm_dma_chan_alloc);
++
++extern int bcm_dma_chan_free(int channel)
++{
++	struct vc_dmaman *dmaman = g_dmaman;
++	int rc;
++
++	if (!dmaman_dev)
++		return -ENODEV;
++
++	mutex_lock(&dmaman->lock);
++	rc = vc_dmaman_chan_free(dmaman, channel);
++	mutex_unlock(&dmaman->lock);
++
++	return rc;
++}
++EXPORT_SYMBOL_GPL(bcm_dma_chan_free);
++
++int bcm_dmaman_probe(struct platform_device *pdev, void __iomem *base,
++		     u32 chans_available)
++{
++	struct device *dev = &pdev->dev;
++	struct vc_dmaman *dmaman;
++
++	dmaman = devm_kzalloc(dev, sizeof(*dmaman), GFP_KERNEL);
++	if (!dmaman)
++		return -ENOMEM;
++
++	mutex_init(&dmaman->lock);
++	vc_dmaman_init(dmaman, base, chans_available);
++	g_dmaman = dmaman;
++	dmaman_dev = dev;
++
++	dev_info(dev, "DMA legacy API manager at %p, dmachans=0x%x\n",
++		 base, chans_available);
++
++	return 0;
++}
++EXPORT_SYMBOL(bcm_dmaman_probe);
++
++int bcm_dmaman_remove(struct platform_device *pdev)
++{
++	dmaman_dev = NULL;
++
++	return 0;
++}
++EXPORT_SYMBOL(bcm_dmaman_remove);
++
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/include/linux/platform_data/dma-bcm2708.h
+@@ -0,0 +1,143 @@
++/*
++ *  Copyright (C) 2010 Broadcom
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#ifndef _PLAT_BCM2708_DMA_H
++#define _PLAT_BCM2708_DMA_H
++
++/* DMA CS Control and Status bits */
++#define BCM2708_DMA_ACTIVE	BIT(0)
++#define BCM2708_DMA_INT		BIT(2)
++#define BCM2708_DMA_ISPAUSED	BIT(4)  /* Pause requested or not active */
++#define BCM2708_DMA_ISHELD	BIT(5)  /* Is held by DREQ flow control */
++#define BCM2708_DMA_ERR		BIT(8)
++#define BCM2708_DMA_ABORT	BIT(30) /* stop current CB, go to next, WO */
++#define BCM2708_DMA_RESET	BIT(31) /* WO, self clearing */
++
++/* DMA control block "info" field bits */
++#define BCM2708_DMA_INT_EN	BIT(0)
++#define BCM2708_DMA_TDMODE	BIT(1)
++#define BCM2708_DMA_WAIT_RESP	BIT(3)
++#define BCM2708_DMA_D_INC	BIT(4)
++#define BCM2708_DMA_D_WIDTH	BIT(5)
++#define BCM2708_DMA_D_DREQ	BIT(6)
++#define BCM2708_DMA_S_INC	BIT(8)
++#define BCM2708_DMA_S_WIDTH	BIT(9)
++#define BCM2708_DMA_S_DREQ	BIT(10)
++
++#define	BCM2708_DMA_BURST(x)	(((x) & 0xf) << 12)
++#define	BCM2708_DMA_PER_MAP(x)	((x) << 16)
++#define	BCM2708_DMA_WAITS(x)	(((x) & 0x1f) << 21)
++
++#define BCM2708_DMA_DREQ_EMMC	11
++#define BCM2708_DMA_DREQ_SDHOST	13
++
++#define BCM2708_DMA_CS		0x00 /* Control and Status */
++#define BCM2708_DMA_ADDR	0x04
++/* the current control block appears in the following registers - read only */
++#define BCM2708_DMA_INFO	0x08
++#define BCM2708_DMA_SOURCE_AD	0x0c
++#define BCM2708_DMA_DEST_AD	0x10
++#define BCM2708_DMA_NEXTCB	0x1C
++#define BCM2708_DMA_DEBUG	0x20
++
++#define BCM2708_DMA4_CS		(BCM2708_DMA_CHAN(4) + BCM2708_DMA_CS)
++#define BCM2708_DMA4_ADDR	(BCM2708_DMA_CHAN(4) + BCM2708_DMA_ADDR)
++
++#define BCM2708_DMA_TDMODE_LEN(w, h) ((h) << 16 | (w))
++
++/* When listing features we can ask for when allocating DMA channels give
++   those with higher priority smaller ordinal numbers */
++#define BCM_DMA_FEATURE_FAST_ORD	0
++#define BCM_DMA_FEATURE_BULK_ORD	1
++#define BCM_DMA_FEATURE_NORMAL_ORD	2
++#define BCM_DMA_FEATURE_LITE_ORD	3
++#define BCM_DMA_FEATURE_FAST		BIT(BCM_DMA_FEATURE_FAST_ORD)
++#define BCM_DMA_FEATURE_BULK		BIT(BCM_DMA_FEATURE_BULK_ORD)
++#define BCM_DMA_FEATURE_NORMAL		BIT(BCM_DMA_FEATURE_NORMAL_ORD)
++#define BCM_DMA_FEATURE_LITE		BIT(BCM_DMA_FEATURE_LITE_ORD)
++#define BCM_DMA_FEATURE_COUNT		4
++
++struct bcm2708_dma_cb {
++	u32 info;
++	u32 src;
++	u32 dst;
++	u32 length;
++	u32 stride;
++	u32 next;
++	u32 pad[2];
++};
++
++struct scatterlist;
++struct platform_device;
++
++#if defined(CONFIG_DMA_BCM2708) || defined(CONFIG_DMA_BCM2708_MODULE)
++
++int bcm_sg_suitable_for_dma(struct scatterlist *sg_ptr, int sg_len);
++void bcm_dma_start(void __iomem *dma_chan_base, dma_addr_t control_block);
++void bcm_dma_wait_idle(void __iomem *dma_chan_base);
++bool bcm_dma_is_busy(void __iomem *dma_chan_base);
++int bcm_dma_abort(void __iomem *dma_chan_base);
++
++/* return channel no or -ve error */
++int bcm_dma_chan_alloc(unsigned preferred_feature_set,
++		       void __iomem **out_dma_base, int *out_dma_irq);
++int bcm_dma_chan_free(int channel);
++
++int bcm_dmaman_probe(struct platform_device *pdev, void __iomem *base,
++		     u32 chans_available);
++int bcm_dmaman_remove(struct platform_device *pdev);
++
++#else /* CONFIG_DMA_BCM2708 */
++
++static inline int bcm_sg_suitable_for_dma(struct scatterlist *sg_ptr,
++					  int sg_len)
++{
++	return 0;
++}
++
++static inline void bcm_dma_start(void __iomem *dma_chan_base,
++				 dma_addr_t control_block) { }
++
++static inline void bcm_dma_wait_idle(void __iomem *dma_chan_base) { }
++
++static inline bool bcm_dma_is_busy(void __iomem *dma_chan_base)
++{
++	return false;
++}
++
++static inline int bcm_dma_abort(void __iomem *dma_chan_base)
++{
++	return -EINVAL;
++}
++
++static inline int bcm_dma_chan_alloc(unsigned preferred_feature_set,
++				     void __iomem **out_dma_base,
++				     int *out_dma_irq)
++{
++	return -EINVAL;
++}
++
++static inline int bcm_dma_chan_free(int channel)
++{
++	return -EINVAL;
++}
++
++static inline int bcm_dmaman_probe(struct platform_device *pdev,
++				   void __iomem *base, u32 chans_available)
++{
++	return 0;
++}
++
++static inline int bcm_dmaman_remove(struct platform_device *pdev)
++{
++	return 0;
++}
++
++#endif /* CONFIG_DMA_BCM2708 || CONFIG_DMA_BCM2708_MODULE */
++
++#endif /* _PLAT_BCM2708_DMA_H */

target/linux/brcm2708/patches-4.19/950-0046-vc_mem-Add-vc_mem-driver-for-querying-firmware-memor.patch

@@ -0,0 +1,515 @@
+From 93e55dab09f9790d4cb547a9ac0a3c4803e682db Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Fri, 28 Oct 2016 15:36:43 +0100
+Subject: [PATCH 046/703] vc_mem: Add vc_mem driver for querying firmware
+ memory addresses
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+
+BCM270x: Move vc_mem
+
+Make the vc_mem module available for ARCH_BCM2835 by moving it.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/char/broadcom/Kconfig   |  18 ++
+ drivers/char/broadcom/Makefile  |   1 +
+ drivers/char/broadcom/vc_mem.c  | 422 ++++++++++++++++++++++++++++++++
+ include/linux/broadcom/vc_mem.h |  35 +++
+ 4 files changed, 476 insertions(+)
+ create mode 100644 drivers/char/broadcom/Kconfig
+ create mode 100644 drivers/char/broadcom/Makefile
+ create mode 100644 drivers/char/broadcom/vc_mem.c
+ create mode 100644 include/linux/broadcom/vc_mem.h
+
+--- /dev/null
++++ b/drivers/char/broadcom/Kconfig
+@@ -0,0 +1,18 @@
++#
++# Broadcom char driver config
++#
++
++menuconfig BRCM_CHAR_DRIVERS
++	bool "Broadcom Char Drivers"
++	help
++	  Broadcom's char drivers
++
++if BRCM_CHAR_DRIVERS
++
++config BCM2708_VCMEM
++	bool "Videocore Memory"
++        default y
++        help
++          Helper for videocore memory access and total size allocation.
++
++endif
+--- /dev/null
++++ b/drivers/char/broadcom/Makefile
+@@ -0,0 +1 @@
++obj-$(CONFIG_BCM2708_VCMEM)	+= vc_mem.o
+--- /dev/null
++++ b/drivers/char/broadcom/vc_mem.c
+@@ -0,0 +1,422 @@
++/*****************************************************************************
++* Copyright 2010 - 2011 Broadcom Corporation.  All rights reserved.
++*
++* Unless you and Broadcom execute a separate written software license
++* agreement governing use of this software, this software is licensed to you
++* under the terms of the GNU General Public License version 2, available at
++* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
++*
++* Notwithstanding the above, under no circumstances may you combine this
++* software in any way with any other Broadcom software provided under a
++* license other than the GPL, without Broadcom's express prior written
++* consent.
++*****************************************************************************/
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/fs.h>
++#include <linux/device.h>
++#include <linux/cdev.h>
++#include <linux/mm.h>
++#include <linux/slab.h>
++#include <linux/debugfs.h>
++#include <linux/uaccess.h>
++#include <linux/dma-mapping.h>
++#include <linux/broadcom/vc_mem.h>
++
++#define DRIVER_NAME  "vc-mem"
++
++// Device (/dev) related variables
++static dev_t vc_mem_devnum = 0;
++static struct class *vc_mem_class = NULL;
++static struct cdev vc_mem_cdev;
++static int vc_mem_inited = 0;
++
++#ifdef CONFIG_DEBUG_FS
++static struct dentry *vc_mem_debugfs_entry;
++#endif
++
++/*
++ * Videocore memory addresses and size
++ *
++ * Drivers that wish to know the videocore memory addresses and sizes should
++ * use these variables instead of the MM_IO_BASE and MM_ADDR_IO defines in
++ * headers. This allows the other drivers to not be tied down to a a certain
++ * address/size at compile time.
++ *
++ * In the future, the goal is to have the videocore memory virtual address and
++ * size be calculated at boot time rather than at compile time. The decision of
++ * where the videocore memory resides and its size would be in the hands of the
++ * bootloader (and/or kernel). When that happens, the values of these variables
++ * would be calculated and assigned in the init function.
++ */
++// in the 2835 VC in mapped above ARM, but ARM has full access to VC space
++unsigned long mm_vc_mem_phys_addr = 0x00000000;
++unsigned int mm_vc_mem_size = 0;
++unsigned int mm_vc_mem_base = 0;
++
++EXPORT_SYMBOL(mm_vc_mem_phys_addr);
++EXPORT_SYMBOL(mm_vc_mem_size);
++EXPORT_SYMBOL(mm_vc_mem_base);
++
++static uint phys_addr = 0;
++static uint mem_size = 0;
++static uint mem_base = 0;
++
++
++/****************************************************************************
++*
++*   vc_mem_open
++*
++***************************************************************************/
++
++static int
++vc_mem_open(struct inode *inode, struct file *file)
++{
++	(void) inode;
++	(void) file;
++
++	pr_debug("%s: called file = 0x%p\n", __func__, file);
++
++	return 0;
++}
++
++/****************************************************************************
++*
++*   vc_mem_release
++*
++***************************************************************************/
++
++static int
++vc_mem_release(struct inode *inode, struct file *file)
++{
++	(void) inode;
++	(void) file;
++
++	pr_debug("%s: called file = 0x%p\n", __func__, file);
++
++	return 0;
++}
++
++/****************************************************************************
++*
++*   vc_mem_get_size
++*
++***************************************************************************/
++
++static void
++vc_mem_get_size(void)
++{
++}
++
++/****************************************************************************
++*
++*   vc_mem_get_base
++*
++***************************************************************************/
++
++static void
++vc_mem_get_base(void)
++{
++}
++
++/****************************************************************************
++*
++*   vc_mem_get_current_size
++*
++***************************************************************************/
++
++int
++vc_mem_get_current_size(void)
++{
++	return mm_vc_mem_size;
++}
++
++EXPORT_SYMBOL_GPL(vc_mem_get_current_size);
++
++/****************************************************************************
++*
++*   vc_mem_ioctl
++*
++***************************************************************************/
++
++static long
++vc_mem_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
++{
++	int rc = 0;
++
++	(void) cmd;
++	(void) arg;
++
++	pr_debug("%s: called file = 0x%p\n", __func__, file);
++
++	switch (cmd) {
++	case VC_MEM_IOC_MEM_PHYS_ADDR:
++		{
++			pr_debug("%s: VC_MEM_IOC_MEM_PHYS_ADDR=0x%p\n",
++				__func__, (void *) mm_vc_mem_phys_addr);
++
++			if (copy_to_user((void *) arg, &mm_vc_mem_phys_addr,
++					 sizeof (mm_vc_mem_phys_addr)) != 0) {
++				rc = -EFAULT;
++			}
++			break;
++		}
++	case VC_MEM_IOC_MEM_SIZE:
++		{
++			// Get the videocore memory size first
++			vc_mem_get_size();
++
++			pr_debug("%s: VC_MEM_IOC_MEM_SIZE=%u\n", __func__,
++				mm_vc_mem_size);
++
++			if (copy_to_user((void *) arg, &mm_vc_mem_size,
++					 sizeof (mm_vc_mem_size)) != 0) {
++				rc = -EFAULT;
++			}
++			break;
++		}
++	case VC_MEM_IOC_MEM_BASE:
++		{
++			// Get the videocore memory base
++			vc_mem_get_base();
++
++			pr_debug("%s: VC_MEM_IOC_MEM_BASE=%u\n", __func__,
++				mm_vc_mem_base);
++
++			if (copy_to_user((void *) arg, &mm_vc_mem_base,
++					 sizeof (mm_vc_mem_base)) != 0) {
++				rc = -EFAULT;
++			}
++			break;
++		}
++	case VC_MEM_IOC_MEM_LOAD:
++		{
++			// Get the videocore memory base
++			vc_mem_get_base();
++
++			pr_debug("%s: VC_MEM_IOC_MEM_LOAD=%u\n", __func__,
++				mm_vc_mem_base);
++
++			if (copy_to_user((void *) arg, &mm_vc_mem_base,
++					 sizeof (mm_vc_mem_base)) != 0) {
++				rc = -EFAULT;
++			}
++			break;
++		}
++	default:
++		{
++			return -ENOTTY;
++		}
++	}
++	pr_debug("%s: file = 0x%p returning %d\n", __func__, file, rc);
++
++	return rc;
++}
++
++/****************************************************************************
++*
++*   vc_mem_mmap
++*
++***************************************************************************/
++
++static int
++vc_mem_mmap(struct file *filp, struct vm_area_struct *vma)
++{
++	int rc = 0;
++	unsigned long length = vma->vm_end - vma->vm_start;
++	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
++
++	pr_debug("%s: vm_start = 0x%08lx vm_end = 0x%08lx vm_pgoff = 0x%08lx\n",
++		__func__, (long) vma->vm_start, (long) vma->vm_end,
++		(long) vma->vm_pgoff);
++
++	if (offset + length > mm_vc_mem_size) {
++		pr_err("%s: length %ld is too big\n", __func__, length);
++		return -EINVAL;
++	}
++	// Do not cache the memory map
++	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
++
++	rc = remap_pfn_range(vma, vma->vm_start,
++			     (mm_vc_mem_phys_addr >> PAGE_SHIFT) +
++			     vma->vm_pgoff, length, vma->vm_page_prot);
++	if (rc != 0) {
++		pr_err("%s: remap_pfn_range failed (rc=%d)\n", __func__, rc);
++	}
++
++	return rc;
++}
++
++/****************************************************************************
++*
++*   File Operations for the driver.
++*
++***************************************************************************/
++
++static const struct file_operations vc_mem_fops = {
++	.owner = THIS_MODULE,
++	.open = vc_mem_open,
++	.release = vc_mem_release,
++	.unlocked_ioctl = vc_mem_ioctl,
++	.mmap = vc_mem_mmap,
++};
++
++#ifdef CONFIG_DEBUG_FS
++static void vc_mem_debugfs_deinit(void)
++{
++	debugfs_remove_recursive(vc_mem_debugfs_entry);
++	vc_mem_debugfs_entry = NULL;
++}
++
++
++static int vc_mem_debugfs_init(
++	struct device *dev)
++{
++	vc_mem_debugfs_entry = debugfs_create_dir(DRIVER_NAME, NULL);
++	if (!vc_mem_debugfs_entry) {
++		dev_warn(dev, "could not create debugfs entry\n");
++		return -EFAULT;
++	}
++
++	if (!debugfs_create_x32("vc_mem_phys_addr",
++				0444,
++				vc_mem_debugfs_entry,
++				(u32 *)&mm_vc_mem_phys_addr)) {
++		dev_warn(dev, "%s:could not create vc_mem_phys entry\n",
++			__func__);
++		goto fail;
++	}
++
++	if (!debugfs_create_x32("vc_mem_size",
++				0444,
++				vc_mem_debugfs_entry,
++				(u32 *)&mm_vc_mem_size)) {
++		dev_warn(dev, "%s:could not create vc_mem_size entry\n",
++			__func__);
++		goto fail;
++	}
++
++	if (!debugfs_create_x32("vc_mem_base",
++				0444,
++				vc_mem_debugfs_entry,
++				(u32 *)&mm_vc_mem_base)) {
++		dev_warn(dev, "%s:could not create vc_mem_base entry\n",
++			 __func__);
++		goto fail;
++	}
++
++	return 0;
++
++fail:
++	vc_mem_debugfs_deinit();
++	return -EFAULT;
++}
++
++#endif /* CONFIG_DEBUG_FS */
++
++
++/****************************************************************************
++*
++*   vc_mem_init
++*
++***************************************************************************/
++
++static int __init
++vc_mem_init(void)
++{
++	int rc = -EFAULT;
++	struct device *dev;
++
++	pr_debug("%s: called\n", __func__);
++
++	mm_vc_mem_phys_addr = phys_addr;
++	mm_vc_mem_size = mem_size;
++	mm_vc_mem_base = mem_base;
++
++	vc_mem_get_size();
++
++	pr_info("vc-mem: phys_addr:0x%08lx mem_base=0x%08x mem_size:0x%08x(%u MiB)\n",
++		mm_vc_mem_phys_addr, mm_vc_mem_base, mm_vc_mem_size, mm_vc_mem_size / (1024 * 1024));
++
++	if ((rc = alloc_chrdev_region(&vc_mem_devnum, 0, 1, DRIVER_NAME)) < 0) {
++		pr_err("%s: alloc_chrdev_region failed (rc=%d)\n",
++		       __func__, rc);
++		goto out_err;
++	}
++
++	cdev_init(&vc_mem_cdev, &vc_mem_fops);
++	if ((rc = cdev_add(&vc_mem_cdev, vc_mem_devnum, 1)) != 0) {
++		pr_err("%s: cdev_add failed (rc=%d)\n", __func__, rc);
++		goto out_unregister;
++	}
++
++	vc_mem_class = class_create(THIS_MODULE, DRIVER_NAME);
++	if (IS_ERR(vc_mem_class)) {
++		rc = PTR_ERR(vc_mem_class);
++		pr_err("%s: class_create failed (rc=%d)\n", __func__, rc);
++		goto out_cdev_del;
++	}
++
++	dev = device_create(vc_mem_class, NULL, vc_mem_devnum, NULL,
++			    DRIVER_NAME);
++	if (IS_ERR(dev)) {
++		rc = PTR_ERR(dev);
++		pr_err("%s: device_create failed (rc=%d)\n", __func__, rc);
++		goto out_class_destroy;
++	}
++
++#ifdef CONFIG_DEBUG_FS
++	/* don't fail if the debug entries cannot be created */
++	vc_mem_debugfs_init(dev);
++#endif
++
++	vc_mem_inited = 1;
++	return 0;
++
++	device_destroy(vc_mem_class, vc_mem_devnum);
++
++      out_class_destroy:
++	class_destroy(vc_mem_class);
++	vc_mem_class = NULL;
++
++      out_cdev_del:
++	cdev_del(&vc_mem_cdev);
++
++      out_unregister:
++	unregister_chrdev_region(vc_mem_devnum, 1);
++
++      out_err:
++	return -1;
++}
++
++/****************************************************************************
++*
++*   vc_mem_exit
++*
++***************************************************************************/
++
++static void __exit
++vc_mem_exit(void)
++{
++	pr_debug("%s: called\n", __func__);
++
++	if (vc_mem_inited) {
++#if CONFIG_DEBUG_FS
++		vc_mem_debugfs_deinit();
++#endif
++		device_destroy(vc_mem_class, vc_mem_devnum);
++		class_destroy(vc_mem_class);
++		cdev_del(&vc_mem_cdev);
++		unregister_chrdev_region(vc_mem_devnum, 1);
++	}
++}
++
++module_init(vc_mem_init);
++module_exit(vc_mem_exit);
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Broadcom Corporation");
++
++module_param(phys_addr, uint, 0644);
++module_param(mem_size, uint, 0644);
++module_param(mem_base, uint, 0644);
+--- /dev/null
++++ b/include/linux/broadcom/vc_mem.h
+@@ -0,0 +1,35 @@
++/*****************************************************************************
++* Copyright 2010 - 2011 Broadcom Corporation.  All rights reserved.
++*
++* Unless you and Broadcom execute a separate written software license
++* agreement governing use of this software, this software is licensed to you
++* under the terms of the GNU General Public License version 2, available at
++* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
++*
++* Notwithstanding the above, under no circumstances may you combine this
++* software in any way with any other Broadcom software provided under a
++* license other than the GPL, without Broadcom's express prior written
++* consent.
++*****************************************************************************/
++
++#ifndef _VC_MEM_H
++#define _VC_MEM_H
++
++#include <linux/ioctl.h>
++
++#define VC_MEM_IOC_MAGIC  'v'
++
++#define VC_MEM_IOC_MEM_PHYS_ADDR    _IOR( VC_MEM_IOC_MAGIC, 0, unsigned long )
++#define VC_MEM_IOC_MEM_SIZE         _IOR( VC_MEM_IOC_MAGIC, 1, unsigned int )
++#define VC_MEM_IOC_MEM_BASE         _IOR( VC_MEM_IOC_MAGIC, 2, unsigned int )
++#define VC_MEM_IOC_MEM_LOAD         _IOR( VC_MEM_IOC_MAGIC, 3, unsigned int )
++
++#if defined( __KERNEL__ )
++#define VC_MEM_TO_ARM_ADDR_MASK 0x3FFFFFFF
++
++extern unsigned long mm_vc_mem_phys_addr;
++extern unsigned int  mm_vc_mem_size;
++extern int vc_mem_get_current_size( void );
++#endif
++
++#endif  /* _VC_MEM_H */

target/linux/brcm2708/patches-4.19/950-0048-Add-dev-gpiomem-device-for-rootless-user-GPIO-access.patch

@@ -0,0 +1,303 @@
+From 1a2c16ef68cbba94eee5d916e77269bca572830d Mon Sep 17 00:00:00 2001
+From: Luke Wren <luke@raspberrypi.org>
+Date: Fri, 21 Aug 2015 23:14:48 +0100
+Subject: [PATCH 048/703] Add /dev/gpiomem device for rootless user GPIO access
+
+Signed-off-by: Luke Wren <luke@raspberrypi.org>
+
+bcm2835-gpiomem: Fix for ARCH_BCM2835 builds
+
+Build on ARCH_BCM2835, and fail to probe if no IO resource.
+
+See: https://github.com/raspberrypi/linux/issues/1154
+---
+ drivers/char/broadcom/Kconfig           |   9 +
+ drivers/char/broadcom/Makefile          |   3 +
+ drivers/char/broadcom/bcm2835-gpiomem.c | 258 ++++++++++++++++++++++++
+ 3 files changed, 270 insertions(+)
+ create mode 100644 drivers/char/broadcom/bcm2835-gpiomem.c
+
+--- a/drivers/char/broadcom/Kconfig
++++ b/drivers/char/broadcom/Kconfig
+@@ -26,3 +26,12 @@ config BCM_VC_SM
+ 	help
+ 	Support for the VC shared memory on the Broadcom reference
+ 	design. Uses the VCHIQ stack.
++
++config BCM2835_DEVGPIOMEM
++	tristate "/dev/gpiomem rootless GPIO access via mmap() on the BCM2835"
++	default m
++	help
++		Provides users with root-free access to the GPIO registers
++		on the 2835. Calling mmap(/dev/gpiomem) will map the GPIO
++		register page to the user's pointer.
++
+--- a/drivers/char/broadcom/Makefile
++++ b/drivers/char/broadcom/Makefile
+@@ -1,2 +1,5 @@
+ obj-$(CONFIG_BCM2708_VCMEM)	+= vc_mem.o
+ obj-$(CONFIG_BCM_VC_SM)         += vc_sm/
++
++obj-$(CONFIG_BCM2835_DEVGPIOMEM)+= bcm2835-gpiomem.o
++
+--- /dev/null
++++ b/drivers/char/broadcom/bcm2835-gpiomem.c
+@@ -0,0 +1,258 @@
++/**
++ * GPIO memory device driver
++ *
++ * Creates a chardev /dev/gpiomem which will provide user access to
++ * the BCM2835's GPIO registers when it is mmap()'d.
++ * No longer need root for user GPIO access, but without relaxing permissions
++ * on /dev/mem.
++ *
++ * Written by Luke Wren <luke@raspberrypi.org>
++ * Copyright (c) 2015, Raspberry Pi (Trading) Ltd.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions, and the following disclaimer,
++ *    without modification.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. The names of the above-listed copyright holders may not be used
++ *    to endorse or promote products derived from this software without
++ *    specific prior written permission.
++ *
++ * ALTERNATIVELY, this software may be distributed under the terms of the
++ * GNU General Public License ("GPL") version 2, as published by the Free
++ * Software Foundation.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
++ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
++ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
++ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
++ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/mm.h>
++#include <linux/slab.h>
++#include <linux/cdev.h>
++#include <linux/pagemap.h>
++#include <linux/io.h>
++
++#define DEVICE_NAME "bcm2835-gpiomem"
++#define DRIVER_NAME "gpiomem-bcm2835"
++#define DEVICE_MINOR 0
++
++struct bcm2835_gpiomem_instance {
++	unsigned long gpio_regs_phys;
++	struct device *dev;
++};
++
++static struct cdev bcm2835_gpiomem_cdev;
++static dev_t bcm2835_gpiomem_devid;
++static struct class *bcm2835_gpiomem_class;
++static struct device *bcm2835_gpiomem_dev;
++static struct bcm2835_gpiomem_instance *inst;
++
++
++/****************************************************************************
++*
++*   GPIO mem chardev file ops
++*
++***************************************************************************/
++
++static int bcm2835_gpiomem_open(struct inode *inode, struct file *file)
++{
++	int dev = iminor(inode);
++	int ret = 0;
++
++	if (dev != DEVICE_MINOR) {
++		dev_err(inst->dev, "Unknown minor device: %d", dev);
++		ret = -ENXIO;
++	}
++	return ret;
++}
++
++static int bcm2835_gpiomem_release(struct inode *inode, struct file *file)
++{
++	int dev = iminor(inode);
++	int ret = 0;
++
++	if (dev != DEVICE_MINOR) {
++		dev_err(inst->dev, "Unknown minor device %d", dev);
++		ret = -ENXIO;
++	}
++	return ret;
++}
++
++static const struct vm_operations_struct bcm2835_gpiomem_vm_ops = {
++#ifdef CONFIG_HAVE_IOREMAP_PROT
++	.access = generic_access_phys
++#endif
++};
++
++static int bcm2835_gpiomem_mmap(struct file *file, struct vm_area_struct *vma)
++{
++	/* Ignore what the user says - they're getting the GPIO regs
++	   whether they like it or not! */
++	unsigned long gpio_page = inst->gpio_regs_phys >> PAGE_SHIFT;
++
++	vma->vm_page_prot = phys_mem_access_prot(file, gpio_page,
++						 PAGE_SIZE,
++						 vma->vm_page_prot);
++	vma->vm_ops = &bcm2835_gpiomem_vm_ops;
++	if (remap_pfn_range(vma, vma->vm_start,
++			gpio_page,
++			PAGE_SIZE,
++			vma->vm_page_prot)) {
++		return -EAGAIN;
++	}
++	return 0;
++}
++
++static const struct file_operations
++bcm2835_gpiomem_fops = {
++	.owner = THIS_MODULE,
++	.open = bcm2835_gpiomem_open,
++	.release = bcm2835_gpiomem_release,
++	.mmap = bcm2835_gpiomem_mmap,
++};
++
++
++ /****************************************************************************
++*
++*   Probe and remove functions
++*
++***************************************************************************/
++
++
++static int bcm2835_gpiomem_probe(struct platform_device *pdev)
++{
++	int err;
++	void *ptr_err;
++	struct device *dev = &pdev->dev;
++	struct resource *ioresource;
++
++	/* Allocate buffers and instance data */
++
++	inst = kzalloc(sizeof(struct bcm2835_gpiomem_instance), GFP_KERNEL);
++
++	if (!inst) {
++		err = -ENOMEM;
++		goto failed_inst_alloc;
++	}
++
++	inst->dev = dev;
++
++	ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	if (ioresource) {
++		inst->gpio_regs_phys = ioresource->start;
++	} else {
++		dev_err(inst->dev, "failed to get IO resource");
++		err = -ENOENT;
++		goto failed_get_resource;
++	}
++
++	/* Create character device entries */
++
++	err = alloc_chrdev_region(&bcm2835_gpiomem_devid,
++				  DEVICE_MINOR, 1, DEVICE_NAME);
++	if (err != 0) {
++		dev_err(inst->dev, "unable to allocate device number");
++		goto failed_alloc_chrdev;
++	}
++	cdev_init(&bcm2835_gpiomem_cdev, &bcm2835_gpiomem_fops);
++	bcm2835_gpiomem_cdev.owner = THIS_MODULE;
++	err = cdev_add(&bcm2835_gpiomem_cdev, bcm2835_gpiomem_devid, 1);
++	if (err != 0) {
++		dev_err(inst->dev, "unable to register device");
++		goto failed_cdev_add;
++	}
++
++	/* Create sysfs entries */
++
++	bcm2835_gpiomem_class = class_create(THIS_MODULE, DEVICE_NAME);
++	ptr_err = bcm2835_gpiomem_class;
++	if (IS_ERR(ptr_err))
++		goto failed_class_create;
++
++	bcm2835_gpiomem_dev = device_create(bcm2835_gpiomem_class, NULL,
++					bcm2835_gpiomem_devid, NULL,
++					"gpiomem");
++	ptr_err = bcm2835_gpiomem_dev;
++	if (IS_ERR(ptr_err))
++		goto failed_device_create;
++
++	dev_info(inst->dev, "Initialised: Registers at 0x%08lx",
++		inst->gpio_regs_phys);
++
++	return 0;
++
++failed_device_create:
++	class_destroy(bcm2835_gpiomem_class);
++failed_class_create:
++	cdev_del(&bcm2835_gpiomem_cdev);
++	err = PTR_ERR(ptr_err);
++failed_cdev_add:
++	unregister_chrdev_region(bcm2835_gpiomem_devid, 1);
++failed_alloc_chrdev:
++failed_get_resource:
++	kfree(inst);
++failed_inst_alloc:
++	dev_err(inst->dev, "could not load bcm2835_gpiomem");
++	return err;
++}
++
++static int bcm2835_gpiomem_remove(struct platform_device *pdev)
++{
++	struct device *dev = inst->dev;
++
++	kfree(inst);
++	device_destroy(bcm2835_gpiomem_class, bcm2835_gpiomem_devid);
++	class_destroy(bcm2835_gpiomem_class);
++	cdev_del(&bcm2835_gpiomem_cdev);
++	unregister_chrdev_region(bcm2835_gpiomem_devid, 1);
++
++	dev_info(dev, "GPIO mem driver removed - OK");
++	return 0;
++}
++
++ /****************************************************************************
++*
++*   Register the driver with device tree
++*
++***************************************************************************/
++
++static const struct of_device_id bcm2835_gpiomem_of_match[] = {
++	{.compatible = "brcm,bcm2835-gpiomem",},
++	{ /* sentinel */ },
++};
++
++MODULE_DEVICE_TABLE(of, bcm2835_gpiomem_of_match);
++
++static struct platform_driver bcm2835_gpiomem_driver = {
++	.probe = bcm2835_gpiomem_probe,
++	.remove = bcm2835_gpiomem_remove,
++	.driver = {
++		   .name = DRIVER_NAME,
++		   .owner = THIS_MODULE,
++		   .of_match_table = bcm2835_gpiomem_of_match,
++		   },
++};
++
++module_platform_driver(bcm2835_gpiomem_driver);
++
++MODULE_ALIAS("platform:gpiomem-bcm2835");
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("gpiomem driver for accessing GPIO from userspace");
++MODULE_AUTHOR("Luke Wren <luke@raspberrypi.org>");

target/linux/brcm2708/patches-4.19/950-0050-MISC-bcm2835-smi-use-clock-manager-and-fix-reload-is.patch

@@ -0,0 +1,170 @@
+From 1216c1cccdd7e1eafd6859c9522cdef5c2e4ac8d Mon Sep 17 00:00:00 2001
+From: Martin Sperl <kernel@martin.sperl.org>
+Date: Tue, 26 Apr 2016 14:59:21 +0000
+Subject: [PATCH 050/703] MISC: bcm2835: smi: use clock manager and fix reload
+ issues
+
+Use clock manager instead of self-made clockmanager.
+
+Also fix some error paths that showd up during development
+(especially missing release of dma resources on rmmod)
+
+Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
+---
+ drivers/misc/bcm2835_smi.c | 86 +++++++++++++-------------------------
+ 1 file changed, 28 insertions(+), 58 deletions(-)
+
+--- a/drivers/misc/bcm2835_smi.c
++++ b/drivers/misc/bcm2835_smi.c
+@@ -34,6 +34,7 @@
+  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  */
+ 
++#include <linux/clk.h>
+ #include <linux/kernel.h>
+ #include <linux/module.h>
+ #include <linux/of.h>
+@@ -62,7 +63,7 @@
+ struct bcm2835_smi_instance {
+ 	struct device *dev;
+ 	struct smi_settings settings;
+-	__iomem void *smi_regs_ptr, *cm_smi_regs_ptr;
++	__iomem void *smi_regs_ptr;
+ 	dma_addr_t smi_regs_busaddr;
+ 
+ 	struct dma_chan *dma_chan;
+@@ -72,8 +73,7 @@ struct bcm2835_smi_instance {
+ 
+ 	struct scatterlist buffer_sgl;
+ 
+-	int clock_source;
+-	int clock_divisor;
++	struct clk *clk;
+ 
+ 	/* Sometimes we are called into in an atomic context (e.g. by
+ 	   JFFS2 + MTD) so we can't use a mutex */
+@@ -82,42 +82,6 @@ struct bcm2835_smi_instance {
+ 
+ /****************************************************************************
+ *
+-*   SMI clock manager setup
+-*
+-***************************************************************************/
+-
+-static inline void write_smi_cm_reg(struct bcm2835_smi_instance *inst,
+-	u32 val, unsigned reg)
+-{
+-	writel(CM_PWD | val, inst->cm_smi_regs_ptr + reg);
+-}
+-
+-static inline u32 read_smi_cm_reg(struct bcm2835_smi_instance *inst,
+-	unsigned reg)
+-{
+-	return readl(inst->cm_smi_regs_ptr + reg);
+-}
+-
+-static void smi_setup_clock(struct bcm2835_smi_instance *inst)
+-{
+-	dev_dbg(inst->dev, "Setting up clock...");
+-	/* Disable SMI clock and wait for it to stop. */
+-	write_smi_cm_reg(inst, 0, CM_SMI_CTL);
+-	while (read_smi_cm_reg(inst, CM_SMI_CTL) & CM_SMI_CTL_BUSY)
+-		;
+-
+-	write_smi_cm_reg(inst, (inst->clock_divisor << CM_SMI_DIV_DIVI_OFFS),
+-	       CM_SMI_DIV);
+-	write_smi_cm_reg(inst, (inst->clock_source << CM_SMI_CTL_SRC_OFFS),
+-	       CM_SMI_CTL);
+-
+-	/* Enable the clock */
+-	write_smi_cm_reg(inst, (inst->clock_source << CM_SMI_CTL_SRC_OFFS) |
+-	       CM_SMI_CTL_ENAB, CM_SMI_CTL);
+-}
+-
+-/****************************************************************************
+-*
+ *   SMI peripheral setup
+ *
+ ***************************************************************************/
+@@ -894,42 +858,40 @@ static int bcm2835_smi_probe(struct plat
+ 	struct device_node *node = dev->of_node;
+ 	struct resource *ioresource;
+ 	struct bcm2835_smi_instance *inst;
++	const __be32 *addr;
+ 
++	/* We require device tree support */
++	if (!node)
++		return -EINVAL;
+ 	/* Allocate buffers and instance data */
+-
+ 	inst = devm_kzalloc(dev, sizeof(struct bcm2835_smi_instance),
+ 		GFP_KERNEL);
+-
+ 	if (!inst)
+ 		return -ENOMEM;
+ 
+ 	inst->dev = dev;
+ 	spin_lock_init(&inst->transaction_lock);
+ 
+-	/* We require device tree support */
+-	if (!node)
+-		return -EINVAL;
+-
+ 	ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ 	inst->smi_regs_ptr = devm_ioremap_resource(dev, ioresource);
+-	ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+-	inst->cm_smi_regs_ptr = devm_ioremap_resource(dev, ioresource);
+-	inst->smi_regs_busaddr = be32_to_cpu(
+-		*of_get_address(node, 0, NULL, NULL));
+-	of_property_read_u32(node,
+-			     "brcm,smi-clock-source",
+-			     &inst->clock_source);
+-	of_property_read_u32(node,
+-			     "brcm,smi-clock-divisor",
+-			     &inst->clock_divisor);
++	if (IS_ERR(inst->smi_regs_ptr)) {
++		err = PTR_ERR(inst->smi_regs_ptr);
++		goto err;
++	}
++	addr = of_get_address(node, 0, NULL, NULL);
++	inst->smi_regs_busaddr = be32_to_cpu(addr);
+ 
+ 	err = bcm2835_smi_dma_setup(inst);
+ 	if (err)
+-		return err;
++		goto err;
+ 
+-	/* Finally, do peripheral setup */
++	/* request clock */
++	inst->clk = devm_clk_get(dev, NULL);
++	if (!inst->clk)
++		goto err;
++	clk_prepare_enable(inst->clk);
+ 
+-	smi_setup_clock(inst);
++	/* Finally, do peripheral setup */
+ 	smi_setup_regs(inst);
+ 
+ 	platform_set_drvdata(pdev, inst);
+@@ -937,6 +899,9 @@ static int bcm2835_smi_probe(struct plat
+ 	dev_info(inst->dev, "initialised");
+ 
+ 	return 0;
++err:
++	kfree(inst);
++	return err;
+ }
+ 
+ /****************************************************************************
+@@ -950,6 +915,11 @@ static int bcm2835_smi_remove(struct pla
+ 	struct bcm2835_smi_instance *inst = platform_get_drvdata(pdev);
+ 	struct device *dev = inst->dev;
+ 
++	dmaengine_terminate_all(inst->dma_chan);
++	dma_release_channel(inst->dma_chan);
++
++	clk_disable_unprepare(inst->clk);
++
+ 	dev_info(dev, "SMI device removed - OK");
+ 	return 0;
+ }

target/linux/brcm2708/patches-4.19/950-0051-Add-SMI-NAND-driver.patch

@@ -0,0 +1,348 @@
+From a3f0263e2d5deb675dfe7fb0c31167e86d762e27 Mon Sep 17 00:00:00 2001
+From: Luke Wren <wren6991@gmail.com>
+Date: Sat, 5 Sep 2015 01:16:10 +0100
+Subject: [PATCH 051/703] Add SMI NAND driver
+
+Signed-off-by: Luke Wren <wren6991@gmail.com>
+---
+ .../bindings/mtd/brcm,bcm2835-smi-nand.txt    |  42 +++
+ drivers/mtd/nand/raw/Kconfig                  |   7 +
+ drivers/mtd/nand/raw/Makefile                 |   1 +
+ drivers/mtd/nand/raw/bcm2835_smi_nand.c       | 258 ++++++++++++++++++
+ 4 files changed, 308 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/mtd/brcm,bcm2835-smi-nand.txt
+ create mode 100644 drivers/mtd/nand/raw/bcm2835_smi_nand.c
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/mtd/brcm,bcm2835-smi-nand.txt
+@@ -0,0 +1,42 @@
++* BCM2835 SMI NAND flash
++
++This driver is a shim between the BCM2835 SMI driver (SMI is a peripheral for
++talking to parallel register interfaces) and Linux's MTD layer.
++
++Required properties:
++- compatible: "brcm,bcm2835-smi-nand"
++- status: "okay"
++
++Optional properties:
++- partition@n, where n is an integer from a consecutive sequence starting at 0
++	- Difficult to store partition table on NAND device - normally put it
++	in the source code, kernel bootparams, or device tree (the best way!)
++	- Sub-properties:
++		- label: the partition name, as shown by mtdinfo /dev/mtd*
++		- reg: the size and offset of this partition.
++		- (optional) read-only: an empty property flagging as read only
++
++Example:
++
++nand: flash@0 {
++	compatible = "brcm,bcm2835-smi-nand";
++	status = "okay";
++
++	partition@0 {
++		label = "stage2";
++		// 128k
++		reg = <0 0x20000>;
++		read-only;
++	};
++	partition@1 {
++		label = "firmware";
++		// 16M
++		reg = <0x20000 0x1000000>;
++		read-only;
++	};
++	partition@2 {
++		label = "root";
++		// 2G
++		reg = <0x1020000 0x80000000>;
++	};
++};
+\ No newline at end of file
+--- a/drivers/mtd/nand/raw/Kconfig
++++ b/drivers/mtd/nand/raw/Kconfig
+@@ -40,6 +40,13 @@ config MTD_SM_COMMON
+ 	tristate
+ 	default n
+ 
++config MTD_NAND_BCM2835_SMI
++        tristate "Use Broadcom's Secondary Memory Interface as a NAND controller (BCM283x)"
++        depends on BCM2835_SMI
++        default m
++        help
++	  Uses the BCM2835's SMI peripheral as a NAND controller.
++
+ config MTD_NAND_DENALI
+ 	tristate
+ 
+--- a/drivers/mtd/nand/raw/Makefile
++++ b/drivers/mtd/nand/raw/Makefile
+@@ -11,6 +11,7 @@ obj-$(CONFIG_MTD_NAND_DENALI)		+= denali
+ obj-$(CONFIG_MTD_NAND_DENALI_PCI)	+= denali_pci.o
+ obj-$(CONFIG_MTD_NAND_DENALI_DT)	+= denali_dt.o
+ obj-$(CONFIG_MTD_NAND_AU1550)		+= au1550nd.o
++obj-$(CONFIG_MTD_NAND_BCM2835_SMI)	+= bcm2835_smi_nand.o
+ obj-$(CONFIG_MTD_NAND_S3C2410)		+= s3c2410.o
+ obj-$(CONFIG_MTD_NAND_TANGO)		+= tango_nand.o
+ obj-$(CONFIG_MTD_NAND_DAVINCI)		+= davinci_nand.o
+--- /dev/null
++++ b/drivers/mtd/nand/raw/bcm2835_smi_nand.c
+@@ -0,0 +1,258 @@
++/**
++ * NAND flash driver for Broadcom Secondary Memory Interface
++ *
++ * Written by Luke Wren <luke@raspberrypi.org>
++ * Copyright (c) 2015, Raspberry Pi (Trading) Ltd.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions, and the following disclaimer,
++ *    without modification.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. The names of the above-listed copyright holders may not be used
++ *    to endorse or promote products derived from this software without
++ *    specific prior written permission.
++ *
++ * ALTERNATIVELY, this software may be distributed under the terms of the
++ * GNU General Public License ("GPL") version 2, as published by the Free
++ * Software Foundation.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
++ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
++ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
++ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
++ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/slab.h>
++#include <linux/mtd/rawnand.h>
++#include <linux/mtd/partitions.h>
++
++#include <linux/broadcom/bcm2835_smi.h>
++
++#define DEVICE_NAME "bcm2835-smi-nand"
++#define DRIVER_NAME "smi-nand-bcm2835"
++
++struct bcm2835_smi_nand_host {
++	struct bcm2835_smi_instance *smi_inst;
++	struct nand_chip nand_chip;
++	struct mtd_info mtd;
++	struct device *dev;
++};
++
++/****************************************************************************
++*
++*   NAND functionality implementation
++*
++****************************************************************************/
++
++#define SMI_NAND_CLE_PIN 0x01
++#define SMI_NAND_ALE_PIN 0x02
++
++static inline void bcm2835_smi_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
++					     unsigned int ctrl)
++{
++	uint32_t cmd32 = cmd;
++	uint32_t addr = ~(SMI_NAND_CLE_PIN | SMI_NAND_ALE_PIN);
++	struct bcm2835_smi_nand_host *host = dev_get_drvdata(mtd->dev.parent);
++	struct bcm2835_smi_instance *inst = host->smi_inst;
++
++	if (ctrl & NAND_CLE)
++		addr |= SMI_NAND_CLE_PIN;
++	if (ctrl & NAND_ALE)
++		addr |= SMI_NAND_ALE_PIN;
++	/* Lower ALL the CS pins! */
++	if (ctrl & NAND_NCE)
++		addr &= (SMI_NAND_CLE_PIN | SMI_NAND_ALE_PIN);
++
++	bcm2835_smi_set_address(inst, addr);
++
++	if (cmd != NAND_CMD_NONE)
++		bcm2835_smi_write_buf(inst, &cmd32, 1);
++}
++
++static inline uint8_t bcm2835_smi_nand_read_byte(struct mtd_info *mtd)
++{
++	uint8_t byte;
++	struct bcm2835_smi_nand_host *host = dev_get_drvdata(mtd->dev.parent);
++	struct bcm2835_smi_instance *inst = host->smi_inst;
++
++	bcm2835_smi_read_buf(inst, &byte, 1);
++	return byte;
++}
++
++static inline void bcm2835_smi_nand_write_byte(struct mtd_info *mtd,
++					       uint8_t byte)
++{
++	struct bcm2835_smi_nand_host *host = dev_get_drvdata(mtd->dev.parent);
++	struct bcm2835_smi_instance *inst = host->smi_inst;
++
++	bcm2835_smi_write_buf(inst, &byte, 1);
++}
++
++static inline void bcm2835_smi_nand_write_buf(struct mtd_info *mtd,
++					      const uint8_t *buf, int len)
++{
++	struct bcm2835_smi_nand_host *host = dev_get_drvdata(mtd->dev.parent);
++	struct bcm2835_smi_instance *inst = host->smi_inst;
++
++	bcm2835_smi_write_buf(inst, buf, len);
++}
++
++static inline void bcm2835_smi_nand_read_buf(struct mtd_info *mtd,
++					     uint8_t *buf, int len)
++{
++	struct bcm2835_smi_nand_host *host = dev_get_drvdata(mtd->dev.parent);
++	struct bcm2835_smi_instance *inst = host->smi_inst;
++
++	bcm2835_smi_read_buf(inst, buf, len);
++}
++
++/****************************************************************************
++*
++*   Probe and remove functions
++*
++***************************************************************************/
++
++static int bcm2835_smi_nand_probe(struct platform_device *pdev)
++{
++	struct bcm2835_smi_nand_host *host;
++	struct nand_chip *this;
++	struct mtd_info *mtd;
++	struct device *dev = &pdev->dev;
++	struct device_node *node = dev->of_node, *smi_node;
++	struct mtd_part_parser_data ppdata;
++	struct smi_settings *smi_settings;
++	struct bcm2835_smi_instance *smi_inst;
++	int ret = -ENXIO;
++
++	if (!node) {
++		dev_err(dev, "No device tree node supplied!");
++		return -EINVAL;
++	}
++
++	smi_node = of_parse_phandle(node, "smi_handle", 0);
++
++	/* Request use of SMI peripheral: */
++	smi_inst = bcm2835_smi_get(smi_node);
++
++	if (!smi_inst) {
++		dev_err(dev, "Could not register with SMI.");
++		return -EPROBE_DEFER;
++	}
++
++	/* Set SMI timing and bus width */
++
++	smi_settings = bcm2835_smi_get_settings_from_regs(smi_inst);
++
++	smi_settings->data_width = SMI_WIDTH_8BIT;
++	smi_settings->read_setup_time = 2;
++	smi_settings->read_hold_time = 1;
++	smi_settings->read_pace_time = 1;
++	smi_settings->read_strobe_time = 3;
++
++	smi_settings->write_setup_time = 2;
++	smi_settings->write_hold_time = 1;
++	smi_settings->write_pace_time = 1;
++	smi_settings->write_strobe_time = 3;
++
++	bcm2835_smi_set_regs_from_settings(smi_inst);
++
++	host = devm_kzalloc(dev, sizeof(struct bcm2835_smi_nand_host),
++		GFP_KERNEL);
++	if (!host)
++		return -ENOMEM;
++
++	host->dev = dev;
++	host->smi_inst = smi_inst;
++
++	platform_set_drvdata(pdev, host);
++
++	/* Link the structures together */
++
++	this = &host->nand_chip;
++	mtd = &host->mtd;
++	mtd->priv = this;
++	mtd->owner = THIS_MODULE;
++	mtd->dev.parent = dev;
++	mtd->name = DRIVER_NAME;
++
++	/* 20 us command delay time... */
++	this->chip_delay = 20;
++
++	this->priv = host;
++	this->cmd_ctrl = bcm2835_smi_nand_cmd_ctrl;
++	this->read_byte = bcm2835_smi_nand_read_byte;
++	this->write_byte = bcm2835_smi_nand_write_byte;
++	this->write_buf = bcm2835_smi_nand_write_buf;
++	this->read_buf = bcm2835_smi_nand_read_buf;
++
++	this->ecc.mode = NAND_ECC_SOFT;
++
++	/* Should never be accessed directly: */
++
++	this->IO_ADDR_R = (void *)0xdeadbeef;
++	this->IO_ADDR_W = (void *)0xdeadbeef;
++
++	/* Scan to find the device and get the page size */
++
++	if (nand_scan(mtd, 1))
++		return -ENXIO;
++
++	nand_release(mtd);
++	return -EINVAL;
++}
++
++static int bcm2835_smi_nand_remove(struct platform_device *pdev)
++{
++	struct bcm2835_smi_nand_host *host = platform_get_drvdata(pdev);
++
++	nand_release(&host->mtd);
++
++	return 0;
++}
++
++/****************************************************************************
++*
++*   Register the driver with device tree
++*
++***************************************************************************/
++
++static const struct of_device_id bcm2835_smi_nand_of_match[] = {
++	{.compatible = "brcm,bcm2835-smi-nand",},
++	{ /* sentinel */ }
++};
++
++MODULE_DEVICE_TABLE(of, bcm2835_smi_nand_of_match);
++
++static struct platform_driver bcm2835_smi_nand_driver = {
++	.probe = bcm2835_smi_nand_probe,
++	.remove = bcm2835_smi_nand_remove,
++	.driver = {
++		.name = DRIVER_NAME,
++		.owner = THIS_MODULE,
++		.of_match_table = bcm2835_smi_nand_of_match,
++	},
++};
++
++module_platform_driver(bcm2835_smi_nand_driver);
++
++MODULE_ALIAS("platform:smi-nand-bcm2835");
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION
++	("Driver for NAND chips using Broadcom Secondary Memory Interface");
++MODULE_AUTHOR("Luke Wren <luke@raspberrypi.org>");

target/linux/brcm2708/patches-4.19/950-0052-Add-cpufreq-driver.patch

@@ -0,0 +1,259 @@
+From 6ae7a56fdff2578805c6f17f03b5bc1b1f9d45a8 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Wed, 3 Jul 2013 00:49:20 +0100
+Subject: [PATCH 052/703] Add cpufreq driver
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+
+bcm2835-cpufreq: Change licence to GPLv2
+
+Signed-off-by: Eben Upton <eben.upton@broadcom.com>
+Signed-off-by: Dom Cobley <dom@raspberrypi.com>
+---
+ drivers/cpufreq/Kconfig.arm       |   9 ++
+ drivers/cpufreq/Makefile          |   1 +
+ drivers/cpufreq/bcm2835-cpufreq.c | 210 ++++++++++++++++++++++++++++++
+ 3 files changed, 220 insertions(+)
+ create mode 100644 drivers/cpufreq/bcm2835-cpufreq.c
+
+--- a/drivers/cpufreq/Kconfig.arm
++++ b/drivers/cpufreq/Kconfig.arm
+@@ -260,6 +260,15 @@ config ARM_TANGO_CPUFREQ
+ 	depends on CPUFREQ_DT && ARCH_TANGO
+ 	default y
+ 
++config ARM_BCM2835_CPUFREQ
++	depends on RASPBERRYPI_FIRMWARE
++	bool "BCM2835 Driver"
++	default y
++	help
++	  This adds the CPUFreq driver for BCM2835
++
++	  If in doubt, say N.
++
+ config ARM_TEGRA20_CPUFREQ
+ 	tristate "Tegra20 CPUFreq support"
+ 	depends on ARCH_TEGRA
+--- a/drivers/cpufreq/Makefile
++++ b/drivers/cpufreq/Makefile
+@@ -80,6 +80,7 @@ obj-$(CONFIG_ARM_SCPI_CPUFREQ)		+= scpi-
+ obj-$(CONFIG_ARM_SPEAR_CPUFREQ)		+= spear-cpufreq.o
+ obj-$(CONFIG_ARM_STI_CPUFREQ)		+= sti-cpufreq.o
+ obj-$(CONFIG_ARM_TANGO_CPUFREQ)		+= tango-cpufreq.o
++obj-$(CONFIG_ARM_BCM2835_CPUFREQ)	+= bcm2835-cpufreq.o
+ obj-$(CONFIG_ARM_TEGRA20_CPUFREQ)	+= tegra20-cpufreq.o
+ obj-$(CONFIG_ARM_TEGRA124_CPUFREQ)	+= tegra124-cpufreq.o
+ obj-$(CONFIG_ARM_TEGRA186_CPUFREQ)	+= tegra186-cpufreq.o
+--- /dev/null
++++ b/drivers/cpufreq/bcm2835-cpufreq.c
+@@ -0,0 +1,210 @@
++/*
++ * Copyright 2011 Broadcom Corporation.
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; version 2
++ * of the License.
++ *
++ * This driver dynamically manages the CPU Frequency of the ARM
++ * processor. Messages are sent to Videocore either setting or requesting the
++ * frequency of the ARM in order to match an appropiate frequency to the current
++ * usage of the processor. The policy which selects the frequency to use is
++ * defined in the kernel .config file, but can be changed during runtime.
++ */
++
++/* ---------- INCLUDES ---------- */
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/cpufreq.h>
++#include <soc/bcm2835/raspberrypi-firmware.h>
++
++/* ---------- DEFINES ---------- */
++/*#define CPUFREQ_DEBUG_ENABLE*/		/* enable debugging */
++#define MODULE_NAME "bcm2835-cpufreq"
++
++#define VCMSG_ID_ARM_CLOCK 0x000000003		/* Clock/Voltage ID's */
++
++/* debug printk macros */
++#ifdef CPUFREQ_DEBUG_ENABLE
++#define print_debug(fmt,...) pr_debug("%s:%s:%d: "fmt, MODULE_NAME, __func__, __LINE__, ##__VA_ARGS__)
++#else
++#define print_debug(fmt,...)
++#endif
++#define print_err(fmt,...) pr_err("%s:%s:%d: "fmt, MODULE_NAME, __func__,__LINE__, ##__VA_ARGS__)
++#define print_info(fmt,...) pr_info("%s: "fmt, MODULE_NAME, ##__VA_ARGS__)
++
++/* ---------- GLOBALS ---------- */
++static struct cpufreq_driver bcm2835_cpufreq_driver;	/* the cpufreq driver global */
++static unsigned int min_frequency, max_frequency;
++static struct cpufreq_frequency_table bcm2835_freq_table[3];
++
++/*
++ ===============================================
++  clk_rate either gets or sets the clock rates.
++ ===============================================
++*/
++
++static int bcm2835_cpufreq_clock_property(u32 tag, u32 id, u32 *val)
++{
++	struct rpi_firmware *fw = rpi_firmware_get(NULL);
++	struct {
++		u32 id;
++		u32 val;
++	} packet;
++	int ret;
++
++	packet.id = id;
++	packet.val = *val;
++	ret = rpi_firmware_property(fw, tag, &packet, sizeof(packet));
++	if (ret)
++		return ret;
++
++	*val = packet.val;
++
++	return 0;
++}
++
++static uint32_t bcm2835_cpufreq_set_clock(int cur_rate, int arm_rate)
++{
++	u32 rate = arm_rate * 1000;
++	int ret;
++
++	ret = bcm2835_cpufreq_clock_property(RPI_FIRMWARE_SET_CLOCK_RATE, VCMSG_ID_ARM_CLOCK, &rate);
++	if (ret) {
++		print_err("Failed to set clock: %d (%d)\n", arm_rate, ret);
++		return 0;
++	}
++
++	rate /= 1000;
++	print_debug("Setting new frequency = %d -> %d (actual %d)\n", cur_rate, arm_rate, rate);
++
++	return rate;
++}
++
++static uint32_t bcm2835_cpufreq_get_clock(int tag)
++{
++	u32 rate;
++	int ret;
++
++	ret = bcm2835_cpufreq_clock_property(tag, VCMSG_ID_ARM_CLOCK, &rate);
++	if (ret) {
++		print_err("Failed to get clock (%d)\n", ret);
++		return 0;
++	}
++
++	rate /= 1000;
++	print_debug("%s frequency = %u\n",
++		tag == RPI_FIRMWARE_GET_CLOCK_RATE ? "Current":
++		tag == RPI_FIRMWARE_GET_MIN_CLOCK_RATE ? "Min":
++		tag == RPI_FIRMWARE_GET_MAX_CLOCK_RATE ? "Max":
++		"Unexpected", rate);
++
++	return rate;
++}
++
++/*
++ ====================================================
++  Module Initialisation registers the cpufreq driver
++ ====================================================
++*/
++static int __init bcm2835_cpufreq_module_init(void)
++{
++	print_debug("IN\n");
++	return cpufreq_register_driver(&bcm2835_cpufreq_driver);
++}
++
++/*
++ =============
++  Module exit
++ =============
++*/
++static void __exit bcm2835_cpufreq_module_exit(void)
++{
++	print_debug("IN\n");
++	cpufreq_unregister_driver(&bcm2835_cpufreq_driver);
++	return;
++}
++
++/*
++ ==============================================================
++  Initialisation function sets up the CPU policy for first use
++ ==============================================================
++*/
++static int bcm2835_cpufreq_driver_init(struct cpufreq_policy *policy)
++{
++	/* measured value of how long it takes to change frequency */
++	const unsigned int transition_latency = 355000; /* ns */
++
++	if (!rpi_firmware_get(NULL)) {
++		print_err("Firmware is not available\n");
++		return -ENODEV;
++	}
++
++	/* now find out what the maximum and minimum frequencies are */
++	min_frequency = bcm2835_cpufreq_get_clock(RPI_FIRMWARE_GET_MIN_CLOCK_RATE);
++	max_frequency = bcm2835_cpufreq_get_clock(RPI_FIRMWARE_GET_MAX_CLOCK_RATE);
++
++	if (min_frequency == max_frequency) {
++		bcm2835_freq_table[0].frequency = min_frequency;
++		bcm2835_freq_table[1].frequency = CPUFREQ_TABLE_END;
++	} else {
++		bcm2835_freq_table[0].frequency = min_frequency;
++		bcm2835_freq_table[1].frequency = max_frequency;
++		bcm2835_freq_table[2].frequency = CPUFREQ_TABLE_END;
++	}
++
++	print_info("min=%d max=%d\n", min_frequency, max_frequency);
++	return cpufreq_generic_init(policy, bcm2835_freq_table, transition_latency);
++}
++
++/*
++ =====================================================================
++  Target index function chooses the requested frequency from the table
++ =====================================================================
++*/
++
++static int bcm2835_cpufreq_driver_target_index(struct cpufreq_policy *policy, unsigned int state)
++{
++	unsigned int target_freq = state == 0 ? min_frequency : max_frequency;
++	unsigned int cur = bcm2835_cpufreq_set_clock(policy->cur, target_freq);
++
++	if (!cur)
++	{
++		print_err("Error occurred setting a new frequency (%d)\n", target_freq);
++		return -EINVAL;
++	}
++	print_debug("%s: %i: freq %d->%d\n", policy->governor->name, state, policy->cur, cur);
++	return 0;
++}
++
++/*
++ ======================================================
++  Get function returns the current frequency from table
++ ======================================================
++*/
++
++static unsigned int bcm2835_cpufreq_driver_get(unsigned int cpu)
++{
++	unsigned int actual_rate = bcm2835_cpufreq_get_clock(RPI_FIRMWARE_GET_CLOCK_RATE);
++	print_debug("cpu%d: freq=%d\n", cpu, actual_rate);
++	return actual_rate <= min_frequency ? min_frequency : max_frequency;
++}
++
++/* the CPUFreq driver */
++static struct cpufreq_driver bcm2835_cpufreq_driver = {
++	.name         = "BCM2835 CPUFreq",
++	.init         = bcm2835_cpufreq_driver_init,
++	.verify       = cpufreq_generic_frequency_table_verify,
++	.target_index = bcm2835_cpufreq_driver_target_index,
++	.get          = bcm2835_cpufreq_driver_get,
++	.attr         = cpufreq_generic_attr,
++};
++
++MODULE_AUTHOR("Dorian Peake and Dom Cobley");
++MODULE_DESCRIPTION("CPU frequency driver for BCM2835 chip");
++MODULE_LICENSE("GPL");
++
++module_init(bcm2835_cpufreq_module_init);
++module_exit(bcm2835_cpufreq_module_exit);

target/linux/brcm2708/patches-4.19/950-0053-Add-Chris-Boot-s-i2c-driver.patch

@@ -0,0 +1,660 @@
+From 3ae115e0812cdaaa3404c84354f40f1e1402fadf Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Wed, 17 Jun 2015 15:44:08 +0100
+Subject: [PATCH 053/703] Add Chris Boot's i2c driver
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+i2c-bcm2708: fixed baudrate
+
+Fixed issue where the wrong CDIV value was set for baudrates below 3815 Hz (for 250MHz bus clock).
+In that case the computed CDIV value was more than 0xffff. However the CDIV register width is only 16 bits.
+This resulted in incorrect setting of CDIV and higher baudrate than intended.
+Example: 3500Hz -> CDIV=0x11704 -> CDIV(16bit)=0x1704 -> 42430Hz
+After correction: 3500Hz -> CDIV=0x11704 -> CDIV(16bit)=0xffff -> 3815Hz
+The correct baudrate is shown in the log after the cdiv > 0xffff correction.
+
+Perform I2C combined transactions when possible
+
+Perform I2C combined transactions whenever possible, within the
+restrictions of the Broadcomm Serial Controller.
+
+Disable DONE interrupt during TA poll
+
+Prevent interrupt from being triggered if poll is missed and transfer
+starts and finishes.
+
+i2c: Make combined transactions optional and disabled by default
+
+i2c: bcm2708: add device tree support
+
+Add DT support to driver and add to .dtsi file.
+Setup pins in .dts file.
+i2c is disabled by default.
+
+Signed-off-by: Noralf Tronnes <notro@tronnes.org>
+
+bcm2708: don't register i2c controllers when using DT
+
+The devices for the i2c controllers are in the Device Tree.
+Only register devices when not using DT.
+
+Signed-off-by: Noralf Tronnes <notro@tronnes.org>
+
+I2C: Only register the I2C device for the current board revision
+
+i2c_bcm2708: Fix clock reference counting
+
+Fix grabbing lock from atomic context in i2c driver
+
+2 main changes:
+- check for timeouts in the bcm2708_bsc_setup function as indicated by this comment:
+      /* poll for transfer start bit (should only take 1-20 polls) */
+  This implies that the setup function can now fail so account for this everywhere it's called
+- Removed the clk_get_rate call from inside the setup function as it locks a mutex and that's not ok since we call it from under a spin lock.
+
+i2c-bcm2708: When using DT, leave the GPIO setup to pinctrl
+
+i2c-bcm2708: Increase timeouts to allow larger transfers
+
+Use the timeout value provided by the I2C_TIMEOUT ioctl when waiting
+for completion. The default timeout is 1 second.
+
+See: https://github.com/raspberrypi/linux/issues/260
+
+i2c-bcm2708/BCM270X_DT: Add support for I2C2
+
+The third I2C bus (I2C2) is normally reserved for HDMI use. Careless
+use of this bus can break an attached display - use with caution.
+
+It is recommended to disable accesses by VideoCore by setting
+hdmi_ignore_edid=1 or hdmi_edid_file=1 in config.txt.
+
+The interface is disabled by default - enable using the
+i2c2_iknowwhatimdoing DT parameter.
+
+bcm2708-spi: Don't use static pin configuration with DT
+
+Also remove superfluous error checking - the SPI framework ensures the
+validity of the chip_select value.
+
+i2c-bcm2708: Remove non-DT support
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+Set the BSC_CLKT clock streching timeout to 35ms as per SMBus specs.
+
+Fixes i2c_bcm2708: Write to FIFO correctly - v2 (#1574)
+
+* i2c: fix i2c_bcm2708: Clear FIFO before sending data
+
+Make sure FIFO gets cleared before trying to send
+data in case of a repeated start (COMBINED=Y).
+
+* i2c: fix i2c_bcm2708: Only write to FIFO when not full
+
+Check if FIFO can accept data before writing.
+To avoid a peripheral read on the last iteration of a loop,
+both bcm2708_bsc_fifo_fill and ~drain are changed as well.
+---
+ drivers/i2c/busses/Kconfig       |  19 ++
+ drivers/i2c/busses/Makefile      |   2 +
+ drivers/i2c/busses/i2c-bcm2708.c | 512 +++++++++++++++++++++++++++++++
+ 3 files changed, 533 insertions(+)
+ create mode 100644 drivers/i2c/busses/i2c-bcm2708.c
+
+--- a/drivers/i2c/busses/Kconfig
++++ b/drivers/i2c/busses/Kconfig
+@@ -8,6 +8,25 @@ menu "I2C Hardware Bus support"
+ comment "PC SMBus host controller drivers"
+ 	depends on PCI
+ 
++config I2C_BCM2708
++	tristate "BCM2708 BSC"
++	depends on ARCH_BCM2835
++	help
++	  Enabling this option will add BSC (Broadcom Serial Controller)
++	  support for the BCM2708. BSC is a Broadcom proprietary bus compatible
++	  with I2C/TWI/SMBus.
++
++config I2C_BCM2708_BAUDRATE
++	prompt "BCM2708 I2C baudrate"
++	depends on I2C_BCM2708
++	int
++	default 100000
++	help
++	  Set the I2C baudrate. This will alter the default value. A
++	  different baudrate can be set by using a module parameter as well. If
++	  no parameter is provided when loading, this is the value that will be
++	  used.
++
+ config I2C_ALI1535
+ 	tristate "ALI 1535"
+ 	depends on PCI
+--- a/drivers/i2c/busses/Makefile
++++ b/drivers/i2c/busses/Makefile
+@@ -3,6 +3,8 @@
+ # Makefile for the i2c bus drivers.
+ #
+ 
++obj-$(CONFIG_I2C_BCM2708)	+= i2c-bcm2708.o
++
+ # ACPI drivers
+ obj-$(CONFIG_I2C_SCMI)		+= i2c-scmi.o
+ 
+--- /dev/null
++++ b/drivers/i2c/busses/i2c-bcm2708.c
+@@ -0,0 +1,512 @@
++/*
++ * Driver for Broadcom BCM2708 BSC Controllers
++ *
++ * Copyright (C) 2012 Chris Boot & Frank Buss
++ *
++ * This driver is inspired by:
++ * i2c-ocores.c, by Peter Korsgaard <jacmet@sunsite.dk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/spinlock.h>
++#include <linux/clk.h>
++#include <linux/err.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/io.h>
++#include <linux/slab.h>
++#include <linux/i2c.h>
++#include <linux/interrupt.h>
++#include <linux/sched.h>
++#include <linux/wait.h>
++
++/* BSC register offsets */
++#define BSC_C			0x00
++#define BSC_S			0x04
++#define BSC_DLEN		0x08
++#define BSC_A			0x0c
++#define BSC_FIFO		0x10
++#define BSC_DIV			0x14
++#define BSC_DEL			0x18
++#define BSC_CLKT		0x1c
++
++/* Bitfields in BSC_C */
++#define BSC_C_I2CEN		0x00008000
++#define BSC_C_INTR		0x00000400
++#define BSC_C_INTT		0x00000200
++#define BSC_C_INTD		0x00000100
++#define BSC_C_ST		0x00000080
++#define BSC_C_CLEAR_1		0x00000020
++#define BSC_C_CLEAR_2		0x00000010
++#define BSC_C_READ		0x00000001
++
++/* Bitfields in BSC_S */
++#define BSC_S_CLKT		0x00000200
++#define BSC_S_ERR		0x00000100
++#define BSC_S_RXF		0x00000080
++#define BSC_S_TXE		0x00000040
++#define BSC_S_RXD		0x00000020
++#define BSC_S_TXD		0x00000010
++#define BSC_S_RXR		0x00000008
++#define BSC_S_TXW		0x00000004
++#define BSC_S_DONE		0x00000002
++#define BSC_S_TA		0x00000001
++
++#define I2C_WAIT_LOOP_COUNT	200
++
++#define DRV_NAME		"bcm2708_i2c"
++
++static unsigned int baudrate;
++module_param(baudrate, uint, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
++MODULE_PARM_DESC(baudrate, "The I2C baudrate");
++
++static bool combined = false;
++module_param(combined, bool, 0644);
++MODULE_PARM_DESC(combined, "Use combined transactions");
++
++struct bcm2708_i2c {
++	struct i2c_adapter adapter;
++
++	spinlock_t lock;
++	void __iomem *base;
++	int irq;
++	struct clk *clk;
++	u32 cdiv;
++	u32 clk_tout;
++
++	struct completion done;
++
++	struct i2c_msg *msg;
++	int pos;
++	int nmsgs;
++	bool error;
++};
++
++static inline u32 bcm2708_rd(struct bcm2708_i2c *bi, unsigned reg)
++{
++	return readl(bi->base + reg);
++}
++
++static inline void bcm2708_wr(struct bcm2708_i2c *bi, unsigned reg, u32 val)
++{
++	writel(val, bi->base + reg);
++}
++
++static inline void bcm2708_bsc_reset(struct bcm2708_i2c *bi)
++{
++	bcm2708_wr(bi, BSC_C, 0);
++	bcm2708_wr(bi, BSC_S, BSC_S_CLKT | BSC_S_ERR | BSC_S_DONE);
++}
++
++static inline void bcm2708_bsc_fifo_drain(struct bcm2708_i2c *bi)
++{
++	while ((bi->pos < bi->msg->len) && (bcm2708_rd(bi, BSC_S) & BSC_S_RXD))
++		bi->msg->buf[bi->pos++] = bcm2708_rd(bi, BSC_FIFO);
++}
++
++static inline void bcm2708_bsc_fifo_fill(struct bcm2708_i2c *bi)
++{
++	while ((bi->pos < bi->msg->len) && (bcm2708_rd(bi, BSC_S) & BSC_S_TXD))
++		bcm2708_wr(bi, BSC_FIFO, bi->msg->buf[bi->pos++]);
++}
++
++static inline int bcm2708_bsc_setup(struct bcm2708_i2c *bi)
++{
++	u32 cdiv, s, clk_tout;
++	u32 c = BSC_C_I2CEN | BSC_C_INTD | BSC_C_ST | BSC_C_CLEAR_1;
++	int wait_loops = I2C_WAIT_LOOP_COUNT;
++
++	/* Can't call clk_get_rate as it locks a mutex and here we are spinlocked.
++	 * Use the value that we cached in the probe.
++	 */
++	cdiv = bi->cdiv;
++	clk_tout = bi->clk_tout;
++
++	if (bi->msg->flags & I2C_M_RD)
++		c |= BSC_C_INTR | BSC_C_READ;
++	else
++		c |= BSC_C_INTT;
++
++	bcm2708_wr(bi, BSC_CLKT, clk_tout);
++	bcm2708_wr(bi, BSC_DIV, cdiv);
++	bcm2708_wr(bi, BSC_A, bi->msg->addr);
++	bcm2708_wr(bi, BSC_DLEN, bi->msg->len);
++	if (combined)
++	{
++		/* Do the next two messages meet combined transaction criteria?
++		   - Current message is a write, next message is a read
++		   - Both messages to same slave address
++		   - Write message can fit inside FIFO (16 bytes or less) */
++		if ( (bi->nmsgs > 1) &&
++			!(bi->msg[0].flags & I2C_M_RD) && (bi->msg[1].flags & I2C_M_RD) &&
++			 (bi->msg[0].addr == bi->msg[1].addr) && (bi->msg[0].len <= 16)) {
++
++			/* Clear FIFO */
++			bcm2708_wr(bi, BSC_C, BSC_C_CLEAR_1);
++
++			/* Fill FIFO with entire write message (16 byte FIFO) */
++			while (bi->pos < bi->msg->len) {
++				bcm2708_wr(bi, BSC_FIFO, bi->msg->buf[bi->pos++]);
++			}
++			/* Start write transfer (no interrupts, don't clear FIFO) */
++			bcm2708_wr(bi, BSC_C, BSC_C_I2CEN | BSC_C_ST);
++
++			/* poll for transfer start bit (should only take 1-20 polls) */
++			do {
++				s = bcm2708_rd(bi, BSC_S);
++			} while (!(s & (BSC_S_TA | BSC_S_ERR | BSC_S_CLKT | BSC_S_DONE)) && --wait_loops >= 0);
++
++			/* did we time out or some error occured? */
++			if (wait_loops < 0 || (s & (BSC_S_ERR | BSC_S_CLKT))) {
++				return -1;
++			}
++
++			/* Send next read message before the write transfer finishes. */
++			bi->nmsgs--;
++			bi->msg++;
++			bi->pos = 0;
++			bcm2708_wr(bi, BSC_DLEN, bi->msg->len);
++			c = BSC_C_I2CEN | BSC_C_INTD | BSC_C_INTR | BSC_C_ST | BSC_C_READ;
++		}
++	}
++	bcm2708_wr(bi, BSC_C, c);
++
++	return 0;
++}
++
++static irqreturn_t bcm2708_i2c_interrupt(int irq, void *dev_id)
++{
++	struct bcm2708_i2c *bi = dev_id;
++	bool handled = true;
++	u32 s;
++	int ret;
++
++	spin_lock(&bi->lock);
++
++	/* we may see camera interrupts on the "other" I2C channel
++		   Just return if we've not sent anything */
++	if (!bi->nmsgs || !bi->msg) {
++		goto early_exit;
++	}
++
++	s = bcm2708_rd(bi, BSC_S);
++
++	if (s & (BSC_S_CLKT | BSC_S_ERR)) {
++		bcm2708_bsc_reset(bi);
++		bi->error = true;
++
++		bi->msg = 0; /* to inform the that all work is done */
++		bi->nmsgs = 0;
++		/* wake up our bh */
++		complete(&bi->done);
++	} else if (s & BSC_S_DONE) {
++		bi->nmsgs--;
++
++		if (bi->msg->flags & I2C_M_RD) {
++			bcm2708_bsc_fifo_drain(bi);
++		}
++
++		bcm2708_bsc_reset(bi);
++
++		if (bi->nmsgs) {
++			/* advance to next message */
++			bi->msg++;
++			bi->pos = 0;
++			ret = bcm2708_bsc_setup(bi);
++			if (ret < 0) {
++				bcm2708_bsc_reset(bi);
++				bi->error = true;
++				bi->msg = 0; /* to inform the that all work is done */
++				bi->nmsgs = 0;
++				/* wake up our bh */
++				complete(&bi->done);
++				goto early_exit;
++			}
++		} else {
++			bi->msg = 0; /* to inform the that all work is done */
++			bi->nmsgs = 0;
++			/* wake up our bh */
++			complete(&bi->done);
++		}
++	} else if (s & BSC_S_TXW) {
++		bcm2708_bsc_fifo_fill(bi);
++	} else if (s & BSC_S_RXR) {
++		bcm2708_bsc_fifo_drain(bi);
++	} else {
++		handled = false;
++	}
++
++early_exit:
++	spin_unlock(&bi->lock);
++
++	return handled ? IRQ_HANDLED : IRQ_NONE;
++}
++
++static int bcm2708_i2c_master_xfer(struct i2c_adapter *adap,
++	struct i2c_msg *msgs, int num)
++{
++	struct bcm2708_i2c *bi = adap->algo_data;
++	unsigned long flags;
++	int ret;
++
++	spin_lock_irqsave(&bi->lock, flags);
++
++	reinit_completion(&bi->done);
++	bi->msg = msgs;
++	bi->pos = 0;
++	bi->nmsgs = num;
++	bi->error = false;
++
++	ret = bcm2708_bsc_setup(bi);
++
++	spin_unlock_irqrestore(&bi->lock, flags);
++
++	/* check the result of the setup */
++	if (ret < 0)
++	{
++		dev_err(&adap->dev, "transfer setup timed out\n");
++		goto error_timeout;
++	}
++
++	ret = wait_for_completion_timeout(&bi->done, adap->timeout);
++	if (ret == 0) {
++		dev_err(&adap->dev, "transfer timed out\n");
++		goto error_timeout;
++	}
++
++	ret = bi->error ? -EIO : num;
++	return ret;
++
++error_timeout:
++	spin_lock_irqsave(&bi->lock, flags);
++	bcm2708_bsc_reset(bi);
++	bi->msg = 0; /* to inform the interrupt handler that there's nothing else to be done */
++	bi->nmsgs = 0;
++	spin_unlock_irqrestore(&bi->lock, flags);
++	return -ETIMEDOUT;
++}
++
++static u32 bcm2708_i2c_functionality(struct i2c_adapter *adap)
++{
++	return I2C_FUNC_I2C | /*I2C_FUNC_10BIT_ADDR |*/ I2C_FUNC_SMBUS_EMUL;
++}
++
++static struct i2c_algorithm bcm2708_i2c_algorithm = {
++	.master_xfer = bcm2708_i2c_master_xfer,
++	.functionality = bcm2708_i2c_functionality,
++};
++
++static int bcm2708_i2c_probe(struct platform_device *pdev)
++{
++	struct resource *regs;
++	int irq, err = -ENOMEM;
++	struct clk *clk;
++	struct bcm2708_i2c *bi;
++	struct i2c_adapter *adap;
++	unsigned long bus_hz;
++	u32 cdiv, clk_tout;
++	u32 baud;
++
++	baud = CONFIG_I2C_BCM2708_BAUDRATE;
++
++	if (pdev->dev.of_node) {
++		u32 bus_clk_rate;
++		pdev->id = of_alias_get_id(pdev->dev.of_node, "i2c");
++		if (pdev->id < 0) {
++			dev_err(&pdev->dev, "alias is missing\n");
++			return -EINVAL;
++		}
++		if (!of_property_read_u32(pdev->dev.of_node,
++					"clock-frequency", &bus_clk_rate))
++			baud = bus_clk_rate;
++		else
++			dev_warn(&pdev->dev,
++				"Could not read clock-frequency property\n");
++	}
++
++	if (baudrate)
++		baud = baudrate;
++
++	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	if (!regs) {
++		dev_err(&pdev->dev, "could not get IO memory\n");
++		return -ENXIO;
++	}
++
++	irq = platform_get_irq(pdev, 0);
++	if (irq < 0) {
++		dev_err(&pdev->dev, "could not get IRQ\n");
++		return irq;
++	}
++
++	clk = clk_get(&pdev->dev, NULL);
++	if (IS_ERR(clk)) {
++		dev_err(&pdev->dev, "could not find clk: %ld\n", PTR_ERR(clk));
++		return PTR_ERR(clk);
++	}
++
++	err = clk_prepare_enable(clk);
++	if (err) {
++		dev_err(&pdev->dev, "could not enable clk: %d\n", err);
++		goto out_clk_put;
++	}
++
++	bi = kzalloc(sizeof(*bi), GFP_KERNEL);
++	if (!bi)
++		goto out_clk_disable;
++
++	platform_set_drvdata(pdev, bi);
++
++	adap = &bi->adapter;
++	adap->class = I2C_CLASS_HWMON | I2C_CLASS_DDC;
++	adap->algo = &bcm2708_i2c_algorithm;
++	adap->algo_data = bi;
++	adap->dev.parent = &pdev->dev;
++	adap->nr = pdev->id;
++	strlcpy(adap->name, dev_name(&pdev->dev), sizeof(adap->name));
++	adap->dev.of_node = pdev->dev.of_node;
++
++	switch (pdev->id) {
++	case 0:
++		adap->class = I2C_CLASS_HWMON;
++		break;
++	case 1:
++		adap->class = I2C_CLASS_DDC;
++		break;
++	case 2:
++		adap->class = I2C_CLASS_DDC;
++		break;
++	default:
++		dev_err(&pdev->dev, "can only bind to BSC 0, 1 or 2\n");
++		err = -ENXIO;
++		goto out_free_bi;
++	}
++
++	spin_lock_init(&bi->lock);
++	init_completion(&bi->done);
++
++	bi->base = ioremap(regs->start, resource_size(regs));
++	if (!bi->base) {
++		dev_err(&pdev->dev, "could not remap memory\n");
++		goto out_free_bi;
++	}
++
++	bi->irq = irq;
++	bi->clk = clk;
++
++	err = request_irq(irq, bcm2708_i2c_interrupt, IRQF_SHARED,
++			dev_name(&pdev->dev), bi);
++	if (err) {
++		dev_err(&pdev->dev, "could not request IRQ: %d\n", err);
++		goto out_iounmap;
++	}
++
++	bcm2708_bsc_reset(bi);
++
++	err = i2c_add_numbered_adapter(adap);
++	if (err < 0) {
++		dev_err(&pdev->dev, "could not add I2C adapter: %d\n", err);
++		goto out_free_irq;
++	}
++
++	bus_hz = clk_get_rate(bi->clk);
++	cdiv = bus_hz / baud;
++	if (cdiv > 0xffff) {
++		cdiv = 0xffff;
++		baud = bus_hz / cdiv;
++	}
++
++	clk_tout = 35/1000*baud; //35ms timeout as per SMBus specs.
++	if (clk_tout > 0xffff)
++		clk_tout = 0xffff;
++	
++	bi->cdiv = cdiv;
++	bi->clk_tout = clk_tout;
++
++	dev_info(&pdev->dev, "BSC%d Controller at 0x%08lx (irq %d) (baudrate %d)\n",
++		pdev->id, (unsigned long)regs->start, irq, baud);
++
++	return 0;
++
++out_free_irq:
++	free_irq(bi->irq, bi);
++out_iounmap:
++	iounmap(bi->base);
++out_free_bi:
++	kfree(bi);
++out_clk_disable:
++	clk_disable_unprepare(clk);
++out_clk_put:
++	clk_put(clk);
++	return err;
++}
++
++static int bcm2708_i2c_remove(struct platform_device *pdev)
++{
++	struct bcm2708_i2c *bi = platform_get_drvdata(pdev);
++
++	platform_set_drvdata(pdev, NULL);
++
++	i2c_del_adapter(&bi->adapter);
++	free_irq(bi->irq, bi);
++	iounmap(bi->base);
++	clk_disable_unprepare(bi->clk);
++	clk_put(bi->clk);
++	kfree(bi);
++
++	return 0;
++}
++
++static const struct of_device_id bcm2708_i2c_of_match[] = {
++        { .compatible = "brcm,bcm2708-i2c" },
++        {},
++};
++MODULE_DEVICE_TABLE(of, bcm2708_i2c_of_match);
++
++static struct platform_driver bcm2708_i2c_driver = {
++	.driver		= {
++		.name	= DRV_NAME,
++		.owner	= THIS_MODULE,
++		.of_match_table = bcm2708_i2c_of_match,
++	},
++	.probe		= bcm2708_i2c_probe,
++	.remove		= bcm2708_i2c_remove,
++};
++
++// module_platform_driver(bcm2708_i2c_driver);
++
++
++static int __init bcm2708_i2c_init(void)
++{
++	return platform_driver_register(&bcm2708_i2c_driver);
++}
++
++static void __exit bcm2708_i2c_exit(void)
++{
++	platform_driver_unregister(&bcm2708_i2c_driver);
++}
++
++module_init(bcm2708_i2c_init);
++module_exit(bcm2708_i2c_exit);
++
++
++
++MODULE_DESCRIPTION("BSC controller driver for Broadcom BCM2708");
++MODULE_AUTHOR("Chris Boot <bootc@bootc.net>");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:" DRV_NAME);

target/linux/brcm2708/patches-4.19/950-0054-char-broadcom-Add-vcio-module.patch

@@ -0,0 +1,220 @@
+From 9fc71e9f5ee71c3f91b43c8c94a0db17349b938c Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Fri, 26 Jun 2015 14:27:06 +0200
+Subject: [PATCH 054/703] char: broadcom: Add vcio module
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Add module for accessing the mailbox property channel through
+/dev/vcio. Was previously in bcm2708-vcio.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/char/broadcom/Kconfig  |   6 ++
+ drivers/char/broadcom/Makefile |   1 +
+ drivers/char/broadcom/vcio.c   | 175 +++++++++++++++++++++++++++++++++
+ 3 files changed, 182 insertions(+)
+ create mode 100644 drivers/char/broadcom/vcio.c
+
+--- a/drivers/char/broadcom/Kconfig
++++ b/drivers/char/broadcom/Kconfig
+@@ -15,6 +15,12 @@ config BCM2708_VCMEM
+         help
+           Helper for videocore memory access and total size allocation.
+ 
++config BCM_VCIO
++	tristate "Mailbox userspace access"
++	depends on BCM2835_MBOX
++	help
++	  Gives access to the mailbox property channel from userspace.
++
+ endif
+ 
+ config BCM_VC_SM
+--- a/drivers/char/broadcom/Makefile
++++ b/drivers/char/broadcom/Makefile
+@@ -1,4 +1,5 @@
+ obj-$(CONFIG_BCM2708_VCMEM)	+= vc_mem.o
++obj-$(CONFIG_BCM_VCIO)		+= vcio.o
+ obj-$(CONFIG_BCM_VC_SM)         += vc_sm/
+ 
+ obj-$(CONFIG_BCM2835_DEVGPIOMEM)+= bcm2835-gpiomem.o
+--- /dev/null
++++ b/drivers/char/broadcom/vcio.c
+@@ -0,0 +1,175 @@
++/*
++ *  Copyright (C) 2010 Broadcom
++ *  Copyright (C) 2015 Noralf Trønnes
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++
++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
++
++#include <linux/cdev.h>
++#include <linux/device.h>
++#include <linux/fs.h>
++#include <linux/init.h>
++#include <linux/ioctl.h>
++#include <linux/module.h>
++#include <linux/slab.h>
++#include <linux/uaccess.h>
++#include <soc/bcm2835/raspberrypi-firmware.h>
++
++#define MBOX_CHAN_PROPERTY 8
++
++#define VCIO_IOC_MAGIC 100
++#define IOCTL_MBOX_PROPERTY _IOWR(VCIO_IOC_MAGIC, 0, char *)
++
++static struct {
++	dev_t devt;
++	struct cdev cdev;
++	struct class *class;
++	struct rpi_firmware *fw;
++} vcio;
++
++static int vcio_user_property_list(void *user)
++{
++	u32 *buf, size;
++	int ret;
++
++	/* The first 32-bit is the size of the buffer */
++	if (copy_from_user(&size, user, sizeof(size)))
++		return -EFAULT;
++
++	buf = kmalloc(size, GFP_KERNEL);
++	if (!buf)
++		return -ENOMEM;
++
++	if (copy_from_user(buf, user, size)) {
++		kfree(buf);
++		return -EFAULT;
++	}
++
++	/* Strip off protocol encapsulation */
++	ret = rpi_firmware_property_list(vcio.fw, &buf[2], size - 12);
++	if (ret) {
++		kfree(buf);
++		return ret;
++	}
++
++	buf[1] = RPI_FIRMWARE_STATUS_SUCCESS;
++	if (copy_to_user(user, buf, size))
++		ret = -EFAULT;
++
++	kfree(buf);
++
++	return ret;
++}
++
++static int vcio_device_open(struct inode *inode, struct file *file)
++{
++	try_module_get(THIS_MODULE);
++
++	return 0;
++}
++
++static int vcio_device_release(struct inode *inode, struct file *file)
++{
++	module_put(THIS_MODULE);
++
++	return 0;
++}
++
++static long vcio_device_ioctl(struct file *file, unsigned int ioctl_num,
++			      unsigned long ioctl_param)
++{
++	switch (ioctl_num) {
++	case IOCTL_MBOX_PROPERTY:
++		return vcio_user_property_list((void *)ioctl_param);
++	default:
++		pr_err("unknown ioctl: %d\n", ioctl_num);
++		return -EINVAL;
++	}
++}
++
++const struct file_operations vcio_fops = {
++	.unlocked_ioctl = vcio_device_ioctl,
++	.open = vcio_device_open,
++	.release = vcio_device_release,
++};
++
++static int __init vcio_init(void)
++{
++	struct device_node *np;
++	static struct device *dev;
++	int ret;
++
++	np = of_find_compatible_node(NULL, NULL,
++				     "raspberrypi,bcm2835-firmware");
++/* Uncomment this when we only boot with Device Tree
++	if (!of_device_is_available(np))
++		return -ENODEV;
++*/
++	vcio.fw = rpi_firmware_get(np);
++	if (!vcio.fw)
++		return -ENODEV;
++
++	ret = alloc_chrdev_region(&vcio.devt, 0, 1, "vcio");
++	if (ret) {
++		pr_err("failed to allocate device number\n");
++		return ret;
++	}
++
++	cdev_init(&vcio.cdev, &vcio_fops);
++	vcio.cdev.owner = THIS_MODULE;
++	ret = cdev_add(&vcio.cdev, vcio.devt, 1);
++	if (ret) {
++		pr_err("failed to register device\n");
++		goto err_unregister_chardev;
++	}
++
++	/*
++	 * Create sysfs entries
++	 * 'bcm2708_vcio' is used for backwards compatibility so we don't break
++	 * userspace. Raspian has a udev rule that changes the permissions.
++	 */
++	vcio.class = class_create(THIS_MODULE, "bcm2708_vcio");
++	if (IS_ERR(vcio.class)) {
++		ret = PTR_ERR(vcio.class);
++		pr_err("failed to create class\n");
++		goto err_cdev_del;
++	}
++
++	dev = device_create(vcio.class, NULL, vcio.devt, NULL, "vcio");
++	if (IS_ERR(dev)) {
++		ret = PTR_ERR(dev);
++		pr_err("failed to create device\n");
++		goto err_class_destroy;
++	}
++
++	return 0;
++
++err_class_destroy:
++	class_destroy(vcio.class);
++err_cdev_del:
++	cdev_del(&vcio.cdev);
++err_unregister_chardev:
++	unregister_chrdev_region(vcio.devt, 1);
++
++	return ret;
++}
++module_init(vcio_init);
++
++static void __exit vcio_exit(void)
++{
++	device_destroy(vcio.class, vcio.devt);
++	class_destroy(vcio.class);
++	cdev_del(&vcio.cdev);
++	unregister_chrdev_region(vcio.devt, 1);
++}
++module_exit(vcio_exit);
++
++MODULE_AUTHOR("Gray Girling");
++MODULE_AUTHOR("Noralf Trønnes");
++MODULE_DESCRIPTION("Mailbox userspace access");
++MODULE_LICENSE("GPL");

target/linux/brcm2708/patches-4.19/950-0055-firmware-bcm2835-Support-ARCH_BCM270x.patch

@@ -0,0 +1,83 @@
+From 2df6434c1ff682a80f65bde7a9e026f4e0d20df1 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Fri, 26 Jun 2015 14:25:01 +0200
+Subject: [PATCH 055/703] firmware: bcm2835: Support ARCH_BCM270x
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Support booting without Device Tree.
+Turn on USB power.
+Load driver early because of lacking support for deferred probing
+in many drivers.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+firmware: bcm2835: Don't turn on USB power
+
+The raspberrypi-power driver is now used to turn on USB power.
+
+This partly reverts commit:
+firmware: bcm2835: Support ARCH_BCM270x
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/firmware/raspberrypi.c | 19 +++++++++++++++++--
+ 1 file changed, 17 insertions(+), 2 deletions(-)
+
+--- a/drivers/firmware/raspberrypi.c
++++ b/drivers/firmware/raspberrypi.c
+@@ -32,6 +32,8 @@ struct rpi_firmware {
+ 	u32 enabled;
+ };
+ 
++static struct platform_device *g_pdev;
++
+ static DEFINE_MUTEX(transaction_lock);
+ 
+ static void response_callback(struct mbox_client *cl, void *msg)
+@@ -229,6 +231,7 @@ static int rpi_firmware_probe(struct pla
+ 	init_completion(&fw->c);
+ 
+ 	platform_set_drvdata(pdev, fw);
++	g_pdev = pdev;
+ 
+ 	rpi_firmware_print_firmware_revision(fw);
+ 	rpi_register_hwmon_driver(dev, fw);
+@@ -243,6 +246,7 @@ static int rpi_firmware_remove(struct pl
+ 	platform_device_unregister(rpi_hwmon);
+ 	rpi_hwmon = NULL;
+ 	mbox_free_channel(fw->chan);
++	g_pdev = NULL;
+ 
+ 	return 0;
+ }
+@@ -255,7 +259,7 @@ static int rpi_firmware_remove(struct pl
+  */
+ struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node)
+ {
+-	struct platform_device *pdev = of_find_device_by_node(firmware_node);
++	struct platform_device *pdev = g_pdev;
+ 
+ 	if (!pdev)
+ 		return NULL;
+@@ -278,7 +282,18 @@ static struct platform_driver rpi_firmwa
+ 	.probe		= rpi_firmware_probe,
+ 	.remove		= rpi_firmware_remove,
+ };
+-module_platform_driver(rpi_firmware_driver);
++
++static int __init rpi_firmware_init(void)
++{
++	return platform_driver_register(&rpi_firmware_driver);
++}
++subsys_initcall(rpi_firmware_init);
++
++static void __init rpi_firmware_exit(void)
++{
++	platform_driver_unregister(&rpi_firmware_driver);
++}
++module_exit(rpi_firmware_exit);
+ 
+ MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
+ MODULE_DESCRIPTION("Raspberry Pi firmware driver");

target/linux/brcm2708/patches-4.19/950-0056-scripts-Add-mkknlimg-and-knlinfo-scripts-from-tools-.patch

@@ -0,0 +1,533 @@
+From bce7a71e1f399b6dcea8a145cc5fff4653450c50 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 11 May 2015 09:00:42 +0100
+Subject: [PATCH 056/703] scripts: Add mkknlimg and knlinfo scripts from tools
+ repo
+
+The Raspberry Pi firmware looks for a trailer on the kernel image to
+determine whether it was compiled with Device Tree support enabled.
+If the firmware finds a kernel without this trailer, or which has a
+trailer indicating that it isn't DT-capable, it disables DT support
+and reverts to using ATAGs.
+
+The mkknlimg utility adds that trailer, having first analysed the
+image to look for signs of DT support and the kernel version string.
+
+knlinfo displays the contents of the trailer in the given kernel image.
+
+scripts/mkknlimg: Add support for ARCH_BCM2835
+
+Add a new trailer field indicating whether this is an ARCH_BCM2835
+build, as opposed to MACH_BCM2708/9. If the loader finds this flag
+is set it changes the default base dtb file name from bcm270x...
+to bcm283y...
+
+Also update knlinfo to show the status of the field.
+
+scripts/mkknlimg: Improve ARCH_BCM2835 detection
+
+The board support code contains sufficient strings to be able to
+distinguish 2708 vs. 2835 builds, so remove the check for
+bcm2835-pm-wdt which could exist in either.
+
+Also, since the canned configuration is no longer built in (it's
+a module), remove the config string checking.
+
+See: https://github.com/raspberrypi/linux/issues/1157
+
+scripts: Multi-platform support for mkknlimg and knlinfo
+
+The firmware uses tags in the kernel trailer to choose which dtb file
+to load. Current firmware loads bcm2835-*.dtb if the '283x' tag is true,
+otherwise it loads bcm270*.dtb. This scheme breaks if an image supports
+multiple platforms.
+
+This patch adds '270X' and '283X' tags to indicate support for RPi and
+upstream platforms, respectively. '283x' (note lower case 'x') is left
+for old firmware, and is only set if the image only supports upstream
+builds.
+
+scripts/mkknlimg: Append a trailer for all input
+
+Now that the firmware assumes an unsigned kernel is DT-capable, it is
+helpful to be able to mark a kernel as being non-DT-capable.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+scripts/knlinfo: Decode DDTK atom
+
+Show the DDTK atom as being a boolean.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+mkknlimg: Retain downstream-kernel detection
+
+With the death of ARCH_BCM2708 and ARCH_BCM2709, a new way is needed to
+determine if this is a "downstream" build that wants the firmware to
+load a bcm27xx .dtb. The vc_cma driver is used downstream but not
+upstream, making vc_cma_init a suitable predicate symbol.
+
+mkknlimg: Find some more downstream-only strings
+
+See: https://github.com/raspberrypi/linux/issues/1920
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+scripts: Update mkknlimg, just in case
+
+With the removal of the vc_cma driver, mkknlimg lost an indication that
+the user had built a downstream kernel. Update the script, adding a few
+more key strings, in case it is still being used.
+
+Note that mkknlimg is now deprecated, except to tag kernels as upstream
+(283x), and thus requiring upstream DTBs.
+
+See: https://github.com/raspberrypi/linux/issues/2239
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ scripts/knlinfo  | 171 +++++++++++++++++++++++++++++++
+ scripts/mkknlimg | 262 +++++++++++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 433 insertions(+)
+ create mode 100755 scripts/knlinfo
+ create mode 100755 scripts/mkknlimg
+
+--- /dev/null
++++ b/scripts/knlinfo
+@@ -0,0 +1,171 @@
++#!/usr/bin/env perl
++# ----------------------------------------------------------------------
++# knlinfo by Phil Elwell for Raspberry Pi
++#
++# (c) 2014,2015 Raspberry Pi (Trading) Limited <info@raspberrypi.org>
++#
++# Licensed under the terms of the GNU General Public License.
++# ----------------------------------------------------------------------
++
++use strict;
++use integer;
++
++use Fcntl ":seek";
++
++my $trailer_magic = 'RPTL';
++
++my %atom_formats =
++(
++    'DDTK' => \&format_bool,
++    'DTOK' => \&format_bool,
++    'KVer' => \&format_string,
++    '270X' => \&format_bool,
++    '283X' => \&format_bool,
++    '283x' => \&format_bool,
++);
++
++if (@ARGV != 1)
++{
++	print ("Usage: knlinfo <kernel image>\n");
++	exit(1);
++}
++
++my $kernel_file = $ARGV[0];
++
++
++my ($atoms, $pos) = read_trailer($kernel_file);
++
++exit(1) if (!$atoms);
++
++printf("Kernel trailer found at %d/0x%x:\n", $pos, $pos);
++
++foreach my $atom (@$atoms)
++{
++    printf("  %s: %s\n", $atom->[0], format_atom($atom));
++}
++
++exit(0);
++
++sub read_trailer
++{
++	my ($kernel_file) = @_;
++	my $fh;
++
++	if (!open($fh, '<', $kernel_file))
++	{
++		print ("* Failed to open '$kernel_file'\n");
++		return undef;
++	}
++
++	if (!seek($fh, -12, SEEK_END))
++	{
++		print ("* seek error in '$kernel_file'\n");
++		return undef;
++	}
++
++	my $last_bytes;
++	sysread($fh, $last_bytes, 12);
++
++	my ($trailer_len, $data_len, $magic) = unpack('VVa4', $last_bytes);
++
++	if (($magic ne $trailer_magic) || ($data_len != 4))
++	{
++		print ("* no trailer\n");
++		return undef;
++	}
++	if (!seek($fh, -12, SEEK_END))
++	{
++		print ("* seek error in '$kernel_file'\n");
++		return undef;
++	}
++
++	$trailer_len -= 12;
++
++	while ($trailer_len > 0)
++	{
++		if ($trailer_len < 8)
++		{
++			print ("* truncated atom header in trailer\n");
++			return undef;
++		}
++		if (!seek($fh, -8, SEEK_CUR))
++		{
++			print ("* seek error in '$kernel_file'\n");
++			return undef;
++		}
++		$trailer_len -= 8;
++
++		my $atom_hdr;
++		sysread($fh, $atom_hdr, 8);
++		my ($atom_len, $atom_type) = unpack('Va4', $atom_hdr);
++
++		if ($trailer_len < $atom_len)
++		{
++			print ("* truncated atom data in trailer\n");
++			return undef;
++		}
++
++		my $rounded_len = (($atom_len + 3) & ~3);
++		if (!seek($fh, -(8 + $rounded_len), SEEK_CUR))
++		{
++			print ("* seek error in '$kernel_file'\n");
++			return undef;
++		}
++		$trailer_len -= $rounded_len;
++
++		my $atom_data;
++		sysread($fh, $atom_data, $atom_len);
++
++		if (!seek($fh, -$atom_len, SEEK_CUR))
++		{
++			print ("* seek error in '$kernel_file'\n");
++			return undef;
++		}
++
++		push @$atoms, [ $atom_type, $atom_data ];
++	}
++
++ 	if (($$atoms[-1][0] eq "\x00\x00\x00\x00") &&
++	    ($$atoms[-1][1] eq ""))
++	{
++		pop @$atoms;
++	}
++	else
++	{
++		print ("* end marker missing from trailer\n");
++	}
++
++	return ($atoms, tell($fh));
++}
++
++sub format_atom
++{
++    my ($atom) = @_;
++
++    my $format_func = $atom_formats{$atom->[0]} || \&format_hex;
++    return $format_func->($atom->[1]);
++}
++
++sub format_bool
++{
++    my ($data) = @_;
++    return unpack('V', $data) ? 'y' : 'n';
++}
++
++sub format_int
++{
++    my ($data) = @_;
++    return unpack('V', $data);
++}
++
++sub format_string
++{
++    my ($data) = @_;
++    return '"'.$data.'"';
++}
++
++sub format_hex
++{
++    my ($data) = @_;
++    return unpack('H*', $data);
++}
+--- /dev/null
++++ b/scripts/mkknlimg
+@@ -0,0 +1,262 @@
++#!/usr/bin/env perl
++# ----------------------------------------------------------------------
++# mkknlimg by Phil Elwell for Raspberry Pi
++# based on extract-ikconfig by Dick Streefland
++#
++# (c) 2009,2010 Dick Streefland <dick@streefland.net>
++# (c) 2014,2015 Raspberry Pi (Trading) Limited <info@raspberrypi.org>
++#
++# Licensed under the terms of the GNU General Public License.
++# ----------------------------------------------------------------------
++
++use strict;
++use warnings;
++use integer;
++
++use constant FLAG_PI   => 0x01;
++use constant FLAG_DTOK => 0x02;
++use constant FLAG_DDTK => 0x04;
++use constant FLAG_270X => 0x08;
++use constant FLAG_283X => 0x10;
++
++my $trailer_magic = 'RPTL';
++
++my $tmpfile1 = "/tmp/mkknlimg_$$.1";
++my $tmpfile2 = "/tmp/mkknlimg_$$.2";
++
++my $dtok = 0;
++my $ddtk = 0;
++my $is_270x = 0;
++my $is_283x = 0;
++
++while (@ARGV && ($ARGV[0] =~ /^-/))
++{
++    my $arg = shift(@ARGV);
++    if ($arg eq '--dtok')
++    {
++	$dtok = 1;
++    }
++    elsif ($arg eq '--ddtk')
++    {
++	$ddtk = 1;
++    }
++    elsif ($arg eq '--270x')
++    {
++	$is_270x = 1;
++    }
++    elsif ($arg eq '--283x')
++    {
++	$is_283x = 1;
++    }
++    else
++    {
++	print ("* Unknown option '$arg'\n");
++	usage();
++    }
++}
++
++usage() if (@ARGV != 2);
++
++my $kernel_file = $ARGV[0];
++my $out_file = $ARGV[1];
++
++if (! -r $kernel_file)
++{
++    print ("* File '$kernel_file' not found\n");
++    usage();
++}
++
++my $wanted_strings =
++{
++	'brcm,bcm2835-mmc' => FLAG_PI,
++	'brcm,bcm2835-sdhost' => FLAG_PI,
++	'brcm,bcm2835-gpio' => FLAG_PI | FLAG_DTOK,
++	'brcm,bcm2708-fb'   => FLAG_PI | FLAG_DTOK | FLAG_270X,
++	'brcm,bcm2708-usb'  => FLAG_PI | FLAG_DTOK | FLAG_270X,
++	'brcm,bcm2835' => FLAG_PI | FLAG_DTOK | FLAG_283X,
++	'brcm,bcm2836' => FLAG_PI | FLAG_DTOK | FLAG_283X,
++	'brcm,bcm2837' => FLAG_PI | FLAG_DTOK | FLAG_283X,
++	'of_cfs_init' => FLAG_DTOK | FLAG_DDTK,
++};
++
++my $res = try_extract($kernel_file, $tmpfile1);
++$res ||= try_decompress('\037\213\010', 'xy',    'gunzip', 0,
++			$kernel_file, $tmpfile1, $tmpfile2);
++$res ||= try_decompress('\3757zXZ\000', 'abcde', 'unxz --single-stream', -1,
++			$kernel_file, $tmpfile1, $tmpfile2);
++$res ||= try_decompress('BZh',          'xy',    'bunzip2', 0,
++			$kernel_file, $tmpfile1, $tmpfile2);
++$res ||= try_decompress('\135\0\0\0',   'xxx',   'unlzma', 0,
++			$kernel_file, $tmpfile1, $tmpfile2);
++$res ||= try_decompress('\211\114\132', 'xy',    'lzop -d', 0,
++			$kernel_file, $tmpfile1, $tmpfile2);
++$res ||= try_decompress('\002\041\114\030', 'xy',    'lz4 -d', 1,
++			$kernel_file, $tmpfile1, $tmpfile2);
++
++my $append_trailer;
++my $trailer;
++my $kver = '?';
++
++$append_trailer = 1;
++
++if ($res)
++{
++    $kver = $res->{'kver'} || '?';
++    my $flags = $res->{'flags'};
++    print("Version: $kver\n");
++
++    if ($flags & FLAG_PI)
++    {
++	$dtok ||= ($flags & FLAG_DTOK) != 0;
++	$is_270x ||= ($flags & FLAG_270X) != 0;
++	$is_283x ||= ($flags & FLAG_283X) != 0;
++	$ddtk ||= ($flags & FLAG_DDTK) != 0;
++    }
++    else
++    {
++	print ("* This doesn't look like a Raspberry Pi kernel.\n");
++    }
++}
++elsif (!$dtok)
++{
++    print ("* Is this a valid kernel?\n");
++}
++
++if ($append_trailer)
++{
++    printf("DT: %s\n", $dtok ? "y" : "n");
++    printf("DDT: %s\n", $ddtk ? "y" : "n");
++    printf("270x: %s\n", $is_270x ? "y" : "n");
++    printf("283x: %s\n", $is_283x ? "y" : "n");
++
++    my @atoms;
++
++    push @atoms, [ $trailer_magic, pack('V', 0) ];
++    push @atoms, [ 'KVer', $kver ];
++    push @atoms, [ 'DTOK', pack('V', $dtok) ];
++    push @atoms, [ 'DDTK', pack('V', $ddtk) ];
++    push @atoms, [ '270X', pack('V', $is_270x) ];
++    push @atoms, [ '283X', pack('V', $is_283x) ];
++    push @atoms, [ '283x', pack('V', $is_283x && !$is_270x) ];
++
++    $trailer = pack_trailer(\@atoms);
++    $atoms[0]->[1] = pack('V', length($trailer));
++
++    $trailer = pack_trailer(\@atoms);
++}
++
++my $ofh;
++my $total_len = 0;
++
++if ($out_file eq $kernel_file)
++{
++    die "* Failed to open '$out_file' for append\n"
++	if (!open($ofh, '>>', $out_file));
++    $total_len = tell($ofh);
++}
++else
++{
++    die "* Failed to open '$kernel_file'\n"
++	if (!open(my $ifh, '<', $kernel_file));
++    die "* Failed to create '$out_file'\n"
++	if (!open($ofh, '>', $out_file));
++
++    my $copybuf;
++    while (1)
++    {
++	my $bytes = sysread($ifh, $copybuf, 64*1024);
++	last if (!$bytes);
++	syswrite($ofh, $copybuf, $bytes);
++	$total_len += $bytes;
++    }
++    close($ifh);
++}
++
++if ($trailer)
++{
++    # Pad to word-alignment
++    syswrite($ofh, "\x000\x000\x000", (-$total_len & 0x3));
++    syswrite($ofh, $trailer);
++}
++
++close($ofh);
++
++exit($trailer ? 0 : 1);
++
++END {
++	unlink($tmpfile1) if ($tmpfile1);
++	unlink($tmpfile2) if ($tmpfile2);
++}
++
++
++sub usage
++{
++	print ("Usage: mkknlimg [--dtok] [--270x] [--283x] <vmlinux|zImage|bzImage> <outfile>\n");
++	exit(1);
++}
++
++sub try_extract
++{
++	my ($knl, $tmp) = @_;
++
++	my $ver = `strings "$knl" | grep -a -E "^Linux version [1-9]"`;
++
++	return undef if (!$ver);
++
++	chomp($ver);
++
++	my $res = { 'kver'=>$ver };
++	$res->{'flags'} = strings_to_flags($knl, $wanted_strings);
++
++	return $res;
++}
++
++
++sub try_decompress
++{
++	my ($magic, $subst, $zcat, $idx, $knl, $tmp1, $tmp2) = @_;
++
++	my $pos = `tr "$magic\n$subst" "\n$subst=" < "$knl" | grep -abo "^$subst"`;
++	if ($pos)
++	{
++		chomp($pos);
++		$pos = (split(/[\r\n]+/, $pos))[$idx];
++		return undef if (!defined($pos));
++		$pos =~ s/:.*[\r\n]*$//s;
++		my $cmd = "tail -c+$pos \"$knl\" | $zcat > $tmp2 2> /dev/null";
++		my $err = (system($cmd) >> 8);
++		return undef if (($err != 0) && ($err != 2));
++
++		return try_extract($tmp2, $tmp1);
++	}
++
++	return undef;
++}
++
++sub strings_to_flags
++{
++	my ($knl, $strings) = @_;
++	my $string_pattern = '^('.join('|', keys(%$strings)).')$';
++	my $flags = 0;
++
++	my @matches = `strings \"$knl\" | grep -E \"$string_pattern\"`;
++	foreach my $match (@matches)
++	{
++	    chomp($match);
++	    $flags |= $strings->{$match};
++	}
++
++	return $flags;
++}
++
++sub pack_trailer
++{
++	my ($atoms) = @_;
++	my $trailer = pack('VV', 0, 0);
++	for (my $i = $#$atoms; $i>=0; $i--)
++	{
++		my $atom = $atoms->[$i];
++		$trailer .= pack('a*x!4Va4', $atom->[1], length($atom->[1]), $atom->[0]);
++	}
++	return $trailer;
++}

target/linux/brcm2708/patches-4.19/950-0058-BCM270x_DT-Add-pwr_led-and-the-required-input-trigge.patch

@@ -0,0 +1,168 @@
+From 28644cb31e076ccc6645c692a7ff43414230f361 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 6 Feb 2015 13:50:57 +0000
+Subject: [PATCH 058/703] BCM270x_DT: Add pwr_led, and the required "input"
+ trigger
+
+The "input" trigger makes the associated GPIO an input.  This is to support
+the Raspberry Pi PWR LED, which is driven by external hardware in normal use.
+
+N.B. pwr_led is not available on Model A or B boards.
+
+leds-gpio: Implement the brightness_get method
+
+The power LED uses some clever logic that means it is driven
+by a voltage measuring circuit when configured as input, otherwise
+it is driven by the GPIO output value. This patch wires up the
+brightness_get method for leds-gpio so that user-space can monitor
+the LED value via /sys/class/gpio/led1/brightness. Using the input
+trigger this returns an indication of the system power health,
+otherwise it is just whatever value the trigger has written most
+recently.
+
+See: https://github.com/raspberrypi/linux/issues/1064
+---
+ drivers/leds/leds-gpio.c             | 17 ++++++++-
+ drivers/leds/trigger/Kconfig         |  7 ++++
+ drivers/leds/trigger/Makefile        |  1 +
+ drivers/leds/trigger/ledtrig-input.c | 55 ++++++++++++++++++++++++++++
+ include/linux/leds.h                 |  3 ++
+ 5 files changed, 82 insertions(+), 1 deletion(-)
+ create mode 100644 drivers/leds/trigger/ledtrig-input.c
+
+--- a/drivers/leds/leds-gpio.c
++++ b/drivers/leds/leds-gpio.c
+@@ -50,8 +50,15 @@ static void gpio_led_set(struct led_clas
+ 		led_dat->platform_gpio_blink_set(led_dat->gpiod, level,
+ 						 NULL, NULL);
+ 		led_dat->blinking = 0;
++	} else if (led_dat->cdev.flags & SET_GPIO_INPUT) {
++		gpiod_direction_input(led_dat->gpiod);
++		led_dat->cdev.flags &= ~SET_GPIO_INPUT;
++	} else if (led_dat->cdev.flags & SET_GPIO_OUTPUT) {
++		gpiod_direction_output(led_dat->gpiod, level);
++		led_dat->cdev.flags &= ~SET_GPIO_OUTPUT;
+ 	} else {
+-		if (led_dat->can_sleep)
++		if (led_dat->can_sleep ||
++			(led_dat->cdev.flags & (SET_GPIO_INPUT | SET_GPIO_OUTPUT) ))
+ 			gpiod_set_value_cansleep(led_dat->gpiod, level);
+ 		else
+ 			gpiod_set_value(led_dat->gpiod, level);
+@@ -65,6 +72,13 @@ static int gpio_led_set_blocking(struct
+ 	return 0;
+ }
+ 
++static enum led_brightness gpio_led_get(struct led_classdev *led_cdev)
++{
++	struct gpio_led_data *led_dat =
++		container_of(led_cdev, struct gpio_led_data, cdev);
++	return gpiod_get_value_cansleep(led_dat->gpiod) ? LED_FULL : LED_OFF;
++}
++
+ static int gpio_blink_set(struct led_classdev *led_cdev,
+ 	unsigned long *delay_on, unsigned long *delay_off)
+ {
+@@ -122,6 +136,7 @@ static int create_gpio_led(const struct
+ 		led_dat->platform_gpio_blink_set = blink_set;
+ 		led_dat->cdev.blink_set = gpio_blink_set;
+ 	}
++	led_dat->cdev.brightness_get = gpio_led_get;
+ 	if (template->default_state == LEDS_GPIO_DEFSTATE_KEEP) {
+ 		state = gpiod_get_value_cansleep(led_dat->gpiod);
+ 		if (state < 0)
+--- a/drivers/leds/trigger/Kconfig
++++ b/drivers/leds/trigger/Kconfig
+@@ -113,6 +113,13 @@ config LEDS_TRIGGER_CAMERA
+ 	  This enables direct flash/torch on/off by the driver, kernel space.
+ 	  If unsure, say Y.
+ 
++config LEDS_TRIGGER_INPUT
++	tristate "LED Input Trigger"
++	depends on LEDS_TRIGGERS
++	help
++	  This allows the GPIOs assigned to be LEDs to be initialised to inputs.
++	  If unsure, say Y.
++
+ config LEDS_TRIGGER_PANIC
+ 	bool "LED Panic Trigger"
+ 	help
+--- a/drivers/leds/trigger/Makefile
++++ b/drivers/leds/trigger/Makefile
+@@ -11,5 +11,6 @@ obj-$(CONFIG_LEDS_TRIGGER_ACTIVITY)	+= l
+ obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON)	+= ledtrig-default-on.o
+ obj-$(CONFIG_LEDS_TRIGGER_TRANSIENT)	+= ledtrig-transient.o
+ obj-$(CONFIG_LEDS_TRIGGER_CAMERA)	+= ledtrig-camera.o
++obj-$(CONFIG_LEDS_TRIGGER_INPUT)	+= ledtrig-input.o
+ obj-$(CONFIG_LEDS_TRIGGER_PANIC)	+= ledtrig-panic.o
+ obj-$(CONFIG_LEDS_TRIGGER_NETDEV)	+= ledtrig-netdev.o
+--- /dev/null
++++ b/drivers/leds/trigger/ledtrig-input.c
+@@ -0,0 +1,55 @@
++/*
++ * Set LED GPIO to Input "Trigger"
++ *
++ * Copyright 2015 Phil Elwell <phil@raspberrypi.org>
++ *
++ * Based on Nick Forbes's ledtrig-default-on.c.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/leds.h>
++#include <linux/gpio.h>
++#include "../leds.h"
++
++static int input_trig_activate(struct led_classdev *led_cdev)
++{
++	led_cdev->flags |= SET_GPIO_INPUT;
++	led_set_brightness(led_cdev, 0);
++	return 0;
++}
++
++static void input_trig_deactivate(struct led_classdev *led_cdev)
++{
++	led_cdev->flags |= SET_GPIO_OUTPUT;
++	led_set_brightness(led_cdev, 0);
++}
++
++static struct led_trigger input_led_trigger = {
++	.name     = "input",
++	.activate = input_trig_activate,
++	.deactivate = input_trig_deactivate,
++};
++
++static int __init input_trig_init(void)
++{
++	return led_trigger_register(&input_led_trigger);
++}
++
++static void __exit input_trig_exit(void)
++{
++	led_trigger_unregister(&input_led_trigger);
++}
++
++module_init(input_trig_init);
++module_exit(input_trig_exit);
++
++MODULE_AUTHOR("Phil Elwell <phil@raspberrypi.org>");
++MODULE_DESCRIPTION("Set LED GPIO to Input \"trigger\"");
++MODULE_LICENSE("GPL");
+--- a/include/linux/leds.h
++++ b/include/linux/leds.h
+@@ -50,6 +50,9 @@ struct led_classdev {
+ #define LED_PANIC_INDICATOR	BIT(20)
+ #define LED_BRIGHT_HW_CHANGED	BIT(21)
+ #define LED_RETAIN_AT_SHUTDOWN	BIT(22)
++	/* Additions for Raspberry Pi PWR LED */
++#define SET_GPIO_INPUT		BIT(30)
++#define SET_GPIO_OUTPUT		BIT(31)
+ 
+ 	/* set_brightness_work / blink_timer flags, atomic, private. */
+ 	unsigned long		work_flags;

target/linux/brcm2708/patches-4.19/950-0059-fbdev-add-FBIOCOPYAREA-ioctl.patch

@@ -0,0 +1,265 @@
+From cdec439b6dd76c5e1ccbe49636882067971abd0d Mon Sep 17 00:00:00 2001
+From: Siarhei Siamashka <siarhei.siamashka@gmail.com>
+Date: Mon, 17 Jun 2013 13:32:11 +0300
+Subject: [PATCH 059/703] fbdev: add FBIOCOPYAREA ioctl
+
+Based on the patch authored by Ali Gholami Rudi at
+    https://lkml.org/lkml/2009/7/13/153
+
+Provide an ioctl for userspace applications, but only if this operation
+is hardware accelerated (otherwide it does not make any sense).
+
+Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
+
+bcm2708_fb: Add ioctl for reading gpu memory through dma
+---
+ drivers/video/fbdev/bcm2708_fb.c | 119 ++++++++++++++++++++++++++++++-
+ drivers/video/fbdev/core/fbmem.c |  36 ++++++++++
+ include/uapi/linux/fb.h          |  12 ++++
+ 3 files changed, 166 insertions(+), 1 deletion(-)
+
+--- a/drivers/video/fbdev/bcm2708_fb.c
++++ b/drivers/video/fbdev/bcm2708_fb.c
+@@ -31,8 +31,10 @@
+ #include <linux/console.h>
+ #include <linux/debugfs.h>
+ #include <asm/sizes.h>
++#include <linux/uaccess.h>
+ #include <linux/io.h>
+ #include <linux/dma-mapping.h>
++#include <linux/cred.h>
+ #include <soc/bcm2835/raspberrypi-firmware.h>
+ 
+ //#define BCM2708_FB_DEBUG
+@@ -95,6 +97,7 @@ struct bcm2708_fb {
+ 	wait_queue_head_t dma_waitq;
+ 	struct bcm2708_fb_stats stats;
+ 	unsigned long fb_bus_address;
++	struct { u32 base, length; } gpu;
+ };
+ 
+ #define to_bcm2708(info)	container_of(info, struct bcm2708_fb, fb)
+@@ -439,7 +442,118 @@ static int bcm2708_fb_pan_display(struct
+ 	return result;
+ }
+ 
+-static int bcm2708_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
++static void dma_memcpy(struct bcm2708_fb *fb, dma_addr_t dst, dma_addr_t src,
++		       int size)
++{
++	int burst_size = (fb->dma_chan == 0) ? 8 : 2;
++	struct bcm2708_dma_cb *cb = fb->cb_base;
++
++	cb->info = BCM2708_DMA_BURST(burst_size) | BCM2708_DMA_S_WIDTH |
++		   BCM2708_DMA_S_INC | BCM2708_DMA_D_WIDTH |
++		   BCM2708_DMA_D_INC;
++	cb->dst = dst;
++	cb->src = src;
++	cb->length = size;
++	cb->stride = 0;
++	cb->pad[0] = 0;
++	cb->pad[1] = 0;
++	cb->next = 0;
++
++	if (size < dma_busy_wait_threshold) {
++		bcm_dma_start(fb->dma_chan_base, fb->cb_handle);
++		bcm_dma_wait_idle(fb->dma_chan_base);
++	} else {
++		void __iomem *dma_chan = fb->dma_chan_base;
++
++		cb->info |= BCM2708_DMA_INT_EN;
++		bcm_dma_start(fb->dma_chan_base, fb->cb_handle);
++		while (bcm_dma_is_busy(dma_chan)) {
++			wait_event_interruptible(
++				fb->dma_waitq,
++				!bcm_dma_is_busy(dma_chan));
++		}
++		fb->stats.dma_irqs++;
++	}
++	fb->stats.dma_copies++;
++}
++
++/* address with no aliases */
++#define INTALIAS_NORMAL(x) ((x)&~0xc0000000)
++/* cache coherent but non-allocating in L1 and L2 */
++#define INTALIAS_L1L2_NONALLOCATING(x) (((x)&~0xc0000000)|0x80000000)
++
++static long vc_mem_copy(struct bcm2708_fb *fb, unsigned long arg)
++{
++	struct fb_dmacopy ioparam;
++	size_t size = PAGE_SIZE;
++	u32 *buf = NULL;
++	dma_addr_t bus_addr;
++	long rc = 0;
++	size_t offset;
++
++	/* restrict this to root user */
++	if (!uid_eq(current_euid(), GLOBAL_ROOT_UID)) {
++		rc = -EFAULT;
++		goto out;
++	}
++
++	/* Get the parameter data.
++	 */
++	if (copy_from_user
++	    (&ioparam, (void *)arg, sizeof(ioparam)) != 0) {
++		pr_err("[%s]: failed to copy-from-user\n",
++				__func__);
++		rc = -EFAULT;
++		goto out;
++	}
++
++	if (fb->gpu.base == 0 || fb->gpu.length == 0) {
++		pr_err("[%s]: Unable to determine gpu memory (%x,%x)\n",
++			__func__, fb->gpu.base, fb->gpu.length);
++		return -EFAULT;
++	}
++
++	if (INTALIAS_NORMAL(ioparam.src) < fb->gpu.base ||
++		INTALIAS_NORMAL(ioparam.src) >= fb->gpu.base + fb->gpu.length) {
++		pr_err("[%s]: Invalid memory access %x (%x-%x)", __func__,
++			INTALIAS_NORMAL(ioparam.src), fb->gpu.base,
++			fb->gpu.base + fb->gpu.length);
++		return -EFAULT;
++	}
++
++	buf = dma_alloc_coherent(fb->fb.device, PAGE_ALIGN(size), &bus_addr,
++				 GFP_ATOMIC);
++	if (!buf) {
++		pr_err("[%s]: failed to dma_alloc_coherent(%d)\n",
++				__func__, size);
++		rc = -ENOMEM;
++		goto out;
++	}
++
++	for (offset = 0; offset < ioparam.length; offset += size) {
++		size_t remaining = ioparam.length - offset;
++		size_t s = min(size, remaining);
++		unsigned char *p = (unsigned char *)ioparam.src + offset;
++		unsigned char *q = (unsigned char *)ioparam.dst + offset;
++
++		dma_memcpy(fb, bus_addr,
++			   INTALIAS_L1L2_NONALLOCATING((dma_addr_t)p), size);
++		if (copy_to_user(q, buf, s) != 0) {
++			pr_err("[%s]: failed to copy-to-user\n",
++					__func__);
++			rc = -EFAULT;
++			goto out;
++		}
++	}
++out:
++	if (buf)
++		dma_free_coherent(fb->fb.device, PAGE_ALIGN(size), buf,
++				  bus_addr);
++	return rc;
++}
++
++static int bcm2708_ioctl(struct fb_info *info, unsigned int cmd,
++			 unsigned long arg)
+ {
+ 	struct bcm2708_fb *fb = to_bcm2708(info);
+ 	u32 dummy = 0;
+@@ -451,6 +565,9 @@ static int bcm2708_ioctl(struct fb_info
+ 					    RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC,
+ 					    &dummy, sizeof(dummy));
+ 		break;
++	case FBIODMACOPY:
++		ret = vc_mem_copy(fb, arg);
++		break;
+ 	default:
+ 		dev_dbg(info->device, "Unknown ioctl 0x%x\n", cmd);
+ 		return -ENOTTY;
+--- a/drivers/video/fbdev/core/fbmem.c
++++ b/drivers/video/fbdev/core/fbmem.c
+@@ -1081,6 +1081,31 @@ fb_blank(struct fb_info *info, int blank
+ }
+ EXPORT_SYMBOL(fb_blank);
+ 
++static int fb_copyarea_user(struct fb_info *info,
++			    struct fb_copyarea *copy)
++{
++	int ret = 0;
++	if (!lock_fb_info(info))
++		return -ENODEV;
++	if (copy->dx >= info->var.xres ||
++	    copy->sx >= info->var.xres ||
++	    copy->width > info->var.xres ||
++	    copy->dy >= info->var.yres ||
++	    copy->sy >= info->var.yres ||
++	    copy->height > info->var.yres ||
++	    copy->dx + copy->width > info->var.xres ||
++	    copy->sx + copy->width > info->var.xres ||
++	    copy->dy + copy->height > info->var.yres ||
++	    copy->sy + copy->height > info->var.yres) {
++		ret = -EINVAL;
++		goto out;
++	}
++	info->fbops->fb_copyarea(info, copy);
++out:
++	unlock_fb_info(info);
++	return ret;
++}
++
+ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
+ 			unsigned long arg)
+ {
+@@ -1091,6 +1116,7 @@ static long do_fb_ioctl(struct fb_info *
+ 	struct fb_cmap cmap_from;
+ 	struct fb_cmap_user cmap;
+ 	struct fb_event event;
++	struct fb_copyarea copy;
+ 	void __user *argp = (void __user *)arg;
+ 	long ret = 0;
+ 
+@@ -1208,6 +1234,15 @@ static long do_fb_ioctl(struct fb_info *
+ 		unlock_fb_info(info);
+ 		console_unlock();
+ 		break;
++	case FBIOCOPYAREA:
++		if (info->flags & FBINFO_HWACCEL_COPYAREA) {
++			/* only provide this ioctl if it is accelerated */
++			if (copy_from_user(&copy, argp, sizeof(copy)))
++				return -EFAULT;
++			ret = fb_copyarea_user(info, &copy);
++			break;
++		}
++		/* fall through */
+ 	default:
+ 		if (!lock_fb_info(info))
+ 			return -ENODEV;
+@@ -1353,6 +1388,7 @@ static long fb_compat_ioctl(struct file
+ 	case FBIOPAN_DISPLAY:
+ 	case FBIOGET_CON2FBMAP:
+ 	case FBIOPUT_CON2FBMAP:
++	case FBIOCOPYAREA:
+ 		arg = (unsigned long) compat_ptr(arg);
+ 		/* fall through */
+ 	case FBIOBLANK:
+--- a/include/uapi/linux/fb.h
++++ b/include/uapi/linux/fb.h
+@@ -35,6 +35,12 @@
+ #define FBIOPUT_MODEINFO        0x4617
+ #define FBIOGET_DISPINFO        0x4618
+ #define FBIO_WAITFORVSYNC	_IOW('F', 0x20, __u32)
++/*
++ * HACK: use 'z' in order not to clash with any other ioctl numbers which might
++ * be concurrently added to the mainline kernel
++ */
++#define FBIOCOPYAREA		_IOW('z', 0x21, struct fb_copyarea)
++#define FBIODMACOPY 		_IOW('z', 0x22, struct fb_dmacopy)
+ 
+ #define FB_TYPE_PACKED_PIXELS		0	/* Packed Pixels	*/
+ #define FB_TYPE_PLANES			1	/* Non interleaved planes */
+@@ -347,6 +353,12 @@ struct fb_copyarea {
+ 	__u32 sy;
+ };
+ 
++struct fb_dmacopy {
++	void *dst;
++	__u32 src;
++	__u32 length;
++};
++
+ struct fb_fillrect {
+ 	__u32 dx;	/* screen-relative */
+ 	__u32 dy;

target/linux/brcm2708/patches-4.19/950-0060-Added-Device-IDs-for-August-DVB-T-205.patch

@@ -0,0 +1,22 @@
+From 4052b5ba9b502747a6326b43e7f1437be36843b7 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Wed, 3 Jul 2013 00:54:08 +0100
+Subject: [PATCH 060/703] Added Device IDs for August DVB-T 205
+
+---
+ drivers/media/usb/dvb-usb-v2/rtl28xxu.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
++++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+@@ -1917,6 +1917,10 @@ static const struct usb_device_id rtl28x
+ 		&rtl28xxu_props, "Compro VideoMate U650F", NULL) },
+ 	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd394,
+ 		&rtl28xxu_props, "MaxMedia HU394-T", NULL) },
++	{ DVB_USB_DEVICE(USB_VID_GTEK, 0xb803 /*USB_PID_AUGUST_DVBT205*/,
++		&rtl28xxu_props, "August DVB-T 205", NULL) },
++	{ DVB_USB_DEVICE(USB_VID_GTEK, 0xa803 /*USB_PID_AUGUST_DVBT205*/,
++		&rtl28xxu_props, "August DVB-T 205", NULL) },
+ 	{ DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a03,
+ 		&rtl28xxu_props, "Leadtek WinFast DTV Dongle mini", NULL) },
+ 	{ DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,

target/linux/brcm2708/patches-4.19/950-0061-rpi-ft5406-Add-touchscreen-driver-for-pi-LCD-display.patch

@@ -0,0 +1,340 @@
+From adc948965c7c2c52df7c93acffe5bd1d71dce462 Mon Sep 17 00:00:00 2001
+From: Gordon Hollingworth <gordon@raspberrypi.org>
+Date: Tue, 12 May 2015 14:47:56 +0100
+Subject: [PATCH 061/703] rpi-ft5406: Add touchscreen driver for pi LCD display
+
+Fix driver detection failure Check that the buffer response is non-zero meaning the touchscreen was detected
+
+rpi-ft5406: Use firmware API
+
+RPI-FT5406: Enable aarch64 support through explicit iomem interface
+
+Signed-off-by: Gerhard de Clercq <gerharddeclercq@outlook.com>
+---
+ drivers/input/touchscreen/Kconfig      |   7 +
+ drivers/input/touchscreen/Makefile     |   1 +
+ drivers/input/touchscreen/rpi-ft5406.c | 292 +++++++++++++++++++++++++
+ 3 files changed, 300 insertions(+)
+ create mode 100644 drivers/input/touchscreen/rpi-ft5406.c
+
+--- a/drivers/input/touchscreen/Kconfig
++++ b/drivers/input/touchscreen/Kconfig
+@@ -696,6 +696,13 @@ config TOUCHSCREEN_EDT_FT5X06
+ 	  To compile this driver as a module, choose M here: the
+ 	  module will be called edt-ft5x06.
+ 
++config TOUCHSCREEN_RPI_FT5406
++	tristate "Raspberry Pi FT5406 driver"
++	depends on RASPBERRYPI_FIRMWARE
++	help
++	  Say Y here to enable the Raspberry Pi memory based FT5406 device
++
++
+ config TOUCHSCREEN_MIGOR
+ 	tristate "Renesas MIGO-R touchscreen"
+ 	depends on (SH_MIGOR || COMPILE_TEST) && I2C
+--- a/drivers/input/touchscreen/Makefile
++++ b/drivers/input/touchscreen/Makefile
+@@ -33,6 +33,7 @@ obj-$(CONFIG_TOUCHSCREEN_DA9034)	+= da90
+ obj-$(CONFIG_TOUCHSCREEN_DA9052)	+= da9052_tsi.o
+ obj-$(CONFIG_TOUCHSCREEN_DYNAPRO)	+= dynapro.o
+ obj-$(CONFIG_TOUCHSCREEN_EDT_FT5X06)	+= edt-ft5x06.o
++obj-$(CONFIG_TOUCHSCREEN_RPI_FT5406)	+= rpi-ft5406.o
+ obj-$(CONFIG_TOUCHSCREEN_HAMPSHIRE)	+= hampshire.o
+ obj-$(CONFIG_TOUCHSCREEN_GUNZE)		+= gunze.o
+ obj-$(CONFIG_TOUCHSCREEN_EETI)		+= eeti_ts.o
+--- /dev/null
++++ b/drivers/input/touchscreen/rpi-ft5406.c
+@@ -0,0 +1,292 @@
++/*
++ * Driver for memory based ft5406 touchscreen
++ *
++ * Copyright (C) 2015 Raspberry Pi
++ *
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++
++#include <linux/module.h>
++#include <linux/interrupt.h>
++#include <linux/input.h>
++#include <linux/irq.h>
++#include <linux/delay.h>
++#include <linux/slab.h>
++#include <linux/bitops.h>
++#include <linux/input/mt.h>
++#include <linux/kthread.h>
++#include <linux/platform_device.h>
++#include <linux/stddef.h>
++#include <asm/io.h>
++#include <linux/dma-mapping.h>
++#include <soc/bcm2835/raspberrypi-firmware.h>
++
++#define MAXIMUM_SUPPORTED_POINTS 10
++struct ft5406_regs {
++	uint8_t device_mode;
++	uint8_t gesture_id;
++	uint8_t num_points;
++	struct ft5406_touch {
++		uint8_t xh;
++		uint8_t xl;
++		uint8_t yh;
++		uint8_t yl;
++		uint8_t res1;
++		uint8_t res2;
++	} point[MAXIMUM_SUPPORTED_POINTS];
++};
++
++#define SCREEN_WIDTH  800
++#define SCREEN_HEIGHT 480
++
++struct ft5406 {
++	struct platform_device * pdev;
++	struct input_dev       * input_dev;
++	void __iomem           * ts_base;
++	dma_addr_t		 bus_addr;
++	struct task_struct     * thread;
++};
++
++/* Thread to poll for touchscreen events
++ * 
++ * This thread polls the memory based register copy of the ft5406 registers
++ * using the number of points register to know whether the copy has been
++ * updated (we write 99 to the memory copy, the GPU will write between 
++ * 0 - 10 points)
++ */
++static int ft5406_thread(void *arg)
++{
++	struct ft5406 *ts = (struct ft5406 *) arg;
++	struct ft5406_regs regs;
++	int known_ids = 0;
++	
++	while(!kthread_should_stop())
++	{
++		// 60fps polling
++		msleep_interruptible(17);
++		memcpy_fromio(&regs, ts->ts_base, sizeof(struct ft5406_regs));
++		iowrite8(99, ts->ts_base + offsetof(struct ft5406_regs, num_points));
++		// Do not output if theres no new information (num_points is 99)
++		// or we have no touch points and don't need to release any
++		if(!(regs.num_points == 99 || (regs.num_points == 0 && known_ids == 0)))
++		{
++			int i;
++			int modified_ids = 0, released_ids;
++			for(i = 0; i < regs.num_points; i++)
++			{
++				int x = (((int) regs.point[i].xh & 0xf) << 8) + regs.point[i].xl;
++				int y = (((int) regs.point[i].yh & 0xf) << 8) + regs.point[i].yl;
++				int touchid = (regs.point[i].yh >> 4) & 0xf;
++				
++				modified_ids |= 1 << touchid;
++
++				if(!((1 << touchid) & known_ids))
++					dev_dbg(&ts->pdev->dev, "x = %d, y = %d, touchid = %d\n", x, y, touchid);
++				
++				input_mt_slot(ts->input_dev, touchid);
++				input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, 1);
++
++				input_report_abs(ts->input_dev, ABS_MT_POSITION_X, x);
++				input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, y);
++
++			}
++
++			released_ids = known_ids & ~modified_ids;
++			for(i = 0; released_ids && i < MAXIMUM_SUPPORTED_POINTS; i++)
++			{
++				if(released_ids & (1<<i))
++				{
++					dev_dbg(&ts->pdev->dev, "Released %d, known = %x modified = %x\n", i, known_ids, modified_ids);
++					input_mt_slot(ts->input_dev, i);
++					input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, 0);
++					modified_ids &= ~(1 << i);
++				}
++			}
++			known_ids = modified_ids;
++			
++			input_mt_report_pointer_emulation(ts->input_dev, true);
++			input_sync(ts->input_dev);
++		}
++			
++	}
++	
++	return 0;
++}
++
++static int ft5406_probe(struct platform_device *pdev)
++{
++	int err = 0;
++	struct device *dev = &pdev->dev;
++	struct device_node *np = dev->of_node;
++	struct ft5406 * ts;
++	struct device_node *fw_node;
++	struct rpi_firmware *fw;
++	u32 touchbuf;
++	
++	dev_info(dev, "Probing device\n");
++	
++	fw_node = of_parse_phandle(np, "firmware", 0);
++	if (!fw_node) {
++		dev_err(dev, "Missing firmware node\n");
++		return -ENOENT;
++	}
++
++	fw = rpi_firmware_get(fw_node);
++	if (!fw)
++		return -EPROBE_DEFER;
++
++	ts = devm_kzalloc(dev, sizeof(struct ft5406), GFP_KERNEL);
++	if (!ts) {
++		dev_err(dev, "Failed to allocate memory\n");
++		return -ENOMEM;
++	}
++
++	ts->input_dev = input_allocate_device();
++	if (!ts->input_dev) {
++		dev_err(dev, "Failed to allocate input device\n");
++		return -ENOMEM;
++	}
++
++	ts->ts_base = dma_zalloc_coherent(dev, PAGE_SIZE, &ts->bus_addr, GFP_KERNEL);
++	if (!ts->ts_base) {
++		pr_err("[%s]: failed to dma_alloc_coherent(%ld)\n",
++				__func__, PAGE_SIZE);
++		err = -ENOMEM;
++		goto out;
++	}
++
++	touchbuf = (u32)ts->bus_addr;
++	err = rpi_firmware_property(fw, RPI_FIRMWARE_FRAMEBUFFER_SET_TOUCHBUF,
++				    &touchbuf, sizeof(touchbuf));
++
++	if (err || touchbuf != 0) {
++		dev_warn(dev, "Failed to set touchbuf, trying to get err:%x\n", err);
++		dma_free_coherent(dev, PAGE_SIZE, ts->ts_base, ts->bus_addr);
++		ts->ts_base = 0;
++		ts->bus_addr = 0;
++	}
++
++	if (!ts->ts_base) {
++		dev_warn(dev, "set failed, trying get (err:%d touchbuf:%x virt:%p bus:%x)\n", err, touchbuf, ts->ts_base, ts->bus_addr);
++
++		err = rpi_firmware_property(fw, RPI_FIRMWARE_FRAMEBUFFER_GET_TOUCHBUF,
++				    &touchbuf, sizeof(touchbuf));
++		if (err) {
++			dev_err(dev, "Failed to get touch buffer\n");
++			goto out;
++		}
++
++		if (!touchbuf) {
++			dev_err(dev, "Touchscreen not detected\n");
++			err = -ENODEV;
++			goto out;
++		}
++
++		dev_dbg(dev, "Got TS buffer 0x%x\n", touchbuf);
++
++		// mmap the physical memory
++		touchbuf &= ~0xc0000000;
++		ts->ts_base = ioremap(touchbuf, sizeof(struct ft5406_regs));
++		if (ts->ts_base == NULL)
++		{
++			dev_err(dev, "Failed to map physical address\n");
++			err = -ENOMEM;
++			goto out;
++		}
++	}
++	platform_set_drvdata(pdev, ts);
++	ts->pdev = pdev;
++	
++	ts->input_dev->name = "FT5406 memory based driver";
++	
++	__set_bit(EV_KEY, ts->input_dev->evbit);
++	__set_bit(EV_SYN, ts->input_dev->evbit);
++	__set_bit(EV_ABS, ts->input_dev->evbit);
++
++	input_set_abs_params(ts->input_dev, ABS_MT_POSITION_X, 0,
++			     SCREEN_WIDTH, 0, 0);
++	input_set_abs_params(ts->input_dev, ABS_MT_POSITION_Y, 0,
++			     SCREEN_HEIGHT, 0, 0);
++
++	input_mt_init_slots(ts->input_dev, MAXIMUM_SUPPORTED_POINTS, INPUT_MT_DIRECT);
++
++	input_set_drvdata(ts->input_dev, ts);
++	
++	err = input_register_device(ts->input_dev);
++	if (err) {
++		dev_err(dev, "could not register input device, %d\n",
++			err);
++		goto out;
++	}
++
++	// create thread to poll the touch events
++	ts->thread = kthread_run(ft5406_thread, ts, "ft5406");
++	if(ts->thread == NULL)
++	{
++		dev_err(dev, "Failed to create kernel thread");
++		err = -ENOMEM;
++		goto out;
++	}
++
++	return 0;
++
++out:
++	if (ts->bus_addr) {
++		dma_free_coherent(dev, PAGE_SIZE, ts->ts_base, ts->bus_addr);
++		ts->bus_addr = 0;
++		ts->ts_base = NULL;
++	} else if (ts->ts_base) {
++		iounmap(ts->ts_base);
++		ts->ts_base = NULL;
++	}
++	if (ts->input_dev) {
++		input_unregister_device(ts->input_dev);
++		ts->input_dev = NULL;
++	}
++	return err;
++}
++
++static int ft5406_remove(struct platform_device *pdev)
++{
++	struct device *dev = &pdev->dev;
++	struct ft5406 *ts = (struct ft5406 *) platform_get_drvdata(pdev);
++	
++	dev_info(dev, "Removing rpi-ft5406\n");
++	
++	kthread_stop(ts->thread);
++
++	if (ts->bus_addr)
++		dma_free_coherent(dev, PAGE_SIZE, ts->ts_base, ts->bus_addr);
++	else if (ts->ts_base)
++		iounmap(ts->ts_base);
++	if (ts->input_dev)
++		input_unregister_device(ts->input_dev);
++	
++	return 0;
++}
++
++static const struct of_device_id ft5406_match[] = {
++	{ .compatible = "rpi,rpi-ft5406", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, ft5406_match);
++
++static struct platform_driver ft5406_driver = {
++	.driver = {
++		.name   = "rpi-ft5406",
++		.owner  = THIS_MODULE,
++		.of_match_table = ft5406_match,
++	},
++	.probe          = ft5406_probe,
++	.remove         = ft5406_remove,
++};
++
++module_platform_driver(ft5406_driver);
++
++MODULE_AUTHOR("Gordon Hollingworth");
++MODULE_DESCRIPTION("Touchscreen driver for memory based FT5406");
++MODULE_LICENSE("GPL");

target/linux/brcm2708/patches-4.19/950-0063-gpio-poweroff-Allow-it-to-work-on-Raspberry-Pi.patch

@@ -0,0 +1,35 @@
+From 985bdee303c68ce16a6ad0b0e317c86b9669ab1a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 25 Jun 2015 12:16:11 +0100
+Subject: [PATCH 063/703] gpio-poweroff: Allow it to work on Raspberry Pi
+
+The Raspberry Pi firmware manages the power-down and reboot
+process. To do this it installs a pm_power_off handler, causing
+the gpio-poweroff module to abort the probe function.
+
+This patch introduces a "force" DT property that overrides that
+behaviour, and also adds a DT overlay to enable and control it.
+
+Note that running in an active-low configuration (DT parameter
+"active_low") requires a custom dt-blob.bin and probably won't
+allow a reboot without switching off, so an external inversion
+of the trigger signal may be preferable.
+---
+ drivers/power/reset/gpio-poweroff.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/power/reset/gpio-poweroff.c
++++ b/drivers/power/reset/gpio-poweroff.c
+@@ -51,9 +51,11 @@ static int gpio_poweroff_probe(struct pl
+ {
+ 	bool input = false;
+ 	enum gpiod_flags flags;
++	bool force = false;
+ 
+ 	/* If a pm_power_off function has already been added, leave it alone */
+-	if (pm_power_off != NULL) {
++	force = of_property_read_bool(pdev->dev.of_node, "force");
++	if (!force && (pm_power_off != NULL)) {
+ 		dev_err(&pdev->dev,
+ 			"%s: pm_power_off function already registered",
+ 		       __func__);

target/linux/brcm2708/patches-4.19/950-0064-mfd-Add-Raspberry-Pi-Sense-HAT-core-driver.patch

@@ -0,0 +1,838 @@
+From cc60f52641f8debefb1c37b59379ccdc84e1938f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <pelwell@users.noreply.github.com>
+Date: Tue, 14 Jul 2015 14:32:47 +0100
+Subject: [PATCH 064/703] mfd: Add Raspberry Pi Sense HAT core driver
+
+---
+ drivers/input/joystick/Kconfig           |   8 +
+ drivers/input/joystick/Makefile          |   1 +
+ drivers/input/joystick/rpisense-js.c     | 153 ++++++++++++
+ drivers/mfd/Kconfig                      |   8 +
+ drivers/mfd/Makefile                     |   2 +-
+ drivers/mfd/rpisense-core.c              | 157 ++++++++++++
+ drivers/video/fbdev/Kconfig              |  13 +
+ drivers/video/fbdev/Makefile             |   1 +
+ drivers/video/fbdev/rpisense-fb.c        | 293 +++++++++++++++++++++++
+ include/linux/mfd/rpisense/core.h        |  47 ++++
+ include/linux/mfd/rpisense/framebuffer.h |  32 +++
+ include/linux/mfd/rpisense/joystick.h    |  35 +++
+ 12 files changed, 749 insertions(+), 1 deletion(-)
+ create mode 100644 drivers/input/joystick/rpisense-js.c
+ create mode 100644 drivers/mfd/rpisense-core.c
+ create mode 100644 drivers/video/fbdev/rpisense-fb.c
+ create mode 100644 include/linux/mfd/rpisense/core.h
+ create mode 100644 include/linux/mfd/rpisense/framebuffer.h
+ create mode 100644 include/linux/mfd/rpisense/joystick.h
+
+--- a/drivers/input/joystick/Kconfig
++++ b/drivers/input/joystick/Kconfig
+@@ -361,4 +361,12 @@ config JOYSTICK_PXRC
+ 	  To compile this driver as a module, choose M here: the
+ 	  module will be called pxrc.
+ 
++config JOYSTICK_RPISENSE
++	tristate "Raspberry Pi Sense HAT joystick"
++	depends on GPIOLIB && INPUT
++	select MFD_RPISENSE_CORE
++
++	help
++	  This is the joystick driver for the Raspberry Pi Sense HAT
++
+ endif
+--- a/drivers/input/joystick/Makefile
++++ b/drivers/input/joystick/Makefile
+@@ -35,4 +35,5 @@ obj-$(CONFIG_JOYSTICK_WARRIOR)		+= warri
+ obj-$(CONFIG_JOYSTICK_XPAD)		+= xpad.o
+ obj-$(CONFIG_JOYSTICK_ZHENHUA)		+= zhenhua.o
+ obj-$(CONFIG_JOYSTICK_WALKERA0701)	+= walkera0701.o
++obj-$(CONFIG_JOYSTICK_RPISENSE)		+= rpisense-js.o
+ 
+--- /dev/null
++++ b/drivers/input/joystick/rpisense-js.c
+@@ -0,0 +1,153 @@
++/*
++ * Raspberry Pi Sense HAT joystick driver
++ * http://raspberrypi.org
++ *
++ * Copyright (C) 2015 Raspberry Pi
++ *
++ * Author: Serge Schneider
++ *
++ *  This program is free software; you can redistribute  it and/or modify it
++ *  under  the terms of  the GNU General  Public License as published by the
++ *  Free Software Foundation;  either version 2 of the  License, or (at your
++ *  option) any later version.
++ *
++ */
++
++#include <linux/module.h>
++
++#include <linux/mfd/rpisense/joystick.h>
++#include <linux/mfd/rpisense/core.h>
++
++static struct rpisense *rpisense;
++static unsigned char keymap[5] = {KEY_DOWN, KEY_RIGHT, KEY_UP, KEY_ENTER, KEY_LEFT,};
++
++static void keys_work_fn(struct work_struct *work)
++{
++	int i;
++	static s32 prev_keys;
++	struct rpisense_js *rpisense_js = &rpisense->joystick;
++	s32 keys = rpisense_reg_read(rpisense, RPISENSE_KEYS);
++	s32 changes = keys ^ prev_keys;
++
++	prev_keys = keys;
++	for (i = 0; i < 5; i++) {
++		if (changes & 1) {
++			input_report_key(rpisense_js->keys_dev,
++					 keymap[i], keys & 1);
++		}
++		changes >>= 1;
++		keys >>= 1;
++	}
++	input_sync(rpisense_js->keys_dev);
++}
++
++static irqreturn_t keys_irq_handler(int irq, void *pdev)
++{
++	struct rpisense_js *rpisense_js = &rpisense->joystick;
++
++	schedule_work(&rpisense_js->keys_work_s);
++	return IRQ_HANDLED;
++}
++
++static int rpisense_js_probe(struct platform_device *pdev)
++{
++	int ret;
++	int i;
++	struct rpisense_js *rpisense_js;
++
++	rpisense = rpisense_get_dev();
++	rpisense_js = &rpisense->joystick;
++
++	INIT_WORK(&rpisense_js->keys_work_s, keys_work_fn);
++
++	rpisense_js->keys_dev = input_allocate_device();
++	if (!rpisense_js->keys_dev) {
++		dev_err(&pdev->dev, "Could not allocate input device.\n");
++		return -ENOMEM;
++	}
++
++	rpisense_js->keys_dev->evbit[0] = BIT_MASK(EV_KEY);
++	for (i = 0; i < ARRAY_SIZE(keymap); i++) {
++		set_bit(keymap[i],
++			rpisense_js->keys_dev->keybit);
++	}
++
++	rpisense_js->keys_dev->name = "Raspberry Pi Sense HAT Joystick";
++	rpisense_js->keys_dev->phys = "rpi-sense-joy/input0";
++	rpisense_js->keys_dev->id.bustype = BUS_I2C;
++	rpisense_js->keys_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
++	rpisense_js->keys_dev->keycode = keymap;
++	rpisense_js->keys_dev->keycodesize = sizeof(unsigned char);
++	rpisense_js->keys_dev->keycodemax = ARRAY_SIZE(keymap);
++
++	ret = input_register_device(rpisense_js->keys_dev);
++	if (ret) {
++		dev_err(&pdev->dev, "Could not register input device.\n");
++		goto err_keys_alloc;
++	}
++
++	ret = gpiod_direction_input(rpisense_js->keys_desc);
++	if (ret) {
++		dev_err(&pdev->dev, "Could not set keys-int direction.\n");
++		goto err_keys_reg;
++	}
++
++	rpisense_js->keys_irq = gpiod_to_irq(rpisense_js->keys_desc);
++	if (rpisense_js->keys_irq < 0) {
++		dev_err(&pdev->dev, "Could not determine keys-int IRQ.\n");
++		ret = rpisense_js->keys_irq;
++		goto err_keys_reg;
++	}
++
++	ret = devm_request_irq(&pdev->dev, rpisense_js->keys_irq,
++			       keys_irq_handler, IRQF_TRIGGER_RISING,
++			       "keys", &pdev->dev);
++	if (ret) {
++		dev_err(&pdev->dev, "IRQ request failed.\n");
++		goto err_keys_reg;
++	}
++	return 0;
++err_keys_reg:
++	input_unregister_device(rpisense_js->keys_dev);
++err_keys_alloc:
++	input_free_device(rpisense_js->keys_dev);
++	return ret;
++}
++
++static int rpisense_js_remove(struct platform_device *pdev)
++{
++	struct rpisense_js *rpisense_js = &rpisense->joystick;
++
++	input_unregister_device(rpisense_js->keys_dev);
++	input_free_device(rpisense_js->keys_dev);
++	return 0;
++}
++
++#ifdef CONFIG_OF
++static const struct of_device_id rpisense_js_id[] = {
++	{ .compatible = "rpi,rpi-sense-js" },
++	{ },
++};
++MODULE_DEVICE_TABLE(of, rpisense_js_id);
++#endif
++
++static struct platform_device_id rpisense_js_device_id[] = {
++	{ .name = "rpi-sense-js" },
++	{ },
++};
++MODULE_DEVICE_TABLE(platform, rpisense_js_device_id);
++
++static struct platform_driver rpisense_js_driver = {
++	.probe = rpisense_js_probe,
++	.remove = rpisense_js_remove,
++	.driver = {
++		.name = "rpi-sense-js",
++		.owner = THIS_MODULE,
++	},
++};
++
++module_platform_driver(rpisense_js_driver);
++
++MODULE_DESCRIPTION("Raspberry Pi Sense HAT joystick driver");
++MODULE_AUTHOR("Serge Schneider <serge@raspberrypi.org>");
++MODULE_LICENSE("GPL");
+--- a/drivers/mfd/Kconfig
++++ b/drivers/mfd/Kconfig
+@@ -10,6 +10,14 @@ config MFD_CORE
+ 	select IRQ_DOMAIN
+ 	default n
+ 
++config MFD_RPISENSE_CORE
++	tristate "Raspberry Pi Sense HAT core functions"
++	depends on I2C
++	select MFD_CORE
++	help
++	  This is the core driver for the Raspberry Pi Sense HAT. This provides
++	  the necessary functions to communicate with the hardware.
++
+ config MFD_CS5535
+ 	tristate "AMD CS5535 and CS5536 southbridge core functions"
+ 	select MFD_CORE
+--- a/drivers/mfd/Makefile
++++ b/drivers/mfd/Makefile
+@@ -240,4 +240,4 @@ obj-$(CONFIG_MFD_MXS_LRADC)     += mxs-l
+ obj-$(CONFIG_MFD_SC27XX_PMIC)	+= sprd-sc27xx-spi.o
+ obj-$(CONFIG_RAVE_SP_CORE)	+= rave-sp.o
+ obj-$(CONFIG_MFD_ROHM_BD718XX)	+= rohm-bd718x7.o
+-
++obj-$(CONFIG_MFD_RPISENSE_CORE)	+= rpisense-core.o
+--- /dev/null
++++ b/drivers/mfd/rpisense-core.c
+@@ -0,0 +1,157 @@
++/*
++ * Raspberry Pi Sense HAT core driver
++ * http://raspberrypi.org
++ *
++ * Copyright (C) 2015 Raspberry Pi
++ *
++ * Author: Serge Schneider
++ *
++ *  This program is free software; you can redistribute  it and/or modify it
++ *  under  the terms of  the GNU General  Public License as published by the
++ *  Free Software Foundation;  either version 2 of the  License, or (at your
++ *  option) any later version.
++ *
++ *  This driver is based on wm8350 implementation.
++ */
++
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/err.h>
++#include <linux/init.h>
++#include <linux/i2c.h>
++#include <linux/platform_device.h>
++#include <linux/mfd/rpisense/core.h>
++#include <linux/slab.h>
++
++static struct rpisense *rpisense;
++
++static void rpisense_client_dev_register(struct rpisense *rpisense,
++					 const char *name,
++					 struct platform_device **pdev)
++{
++	int ret;
++
++	*pdev = platform_device_alloc(name, -1);
++	if (*pdev == NULL) {
++		dev_err(rpisense->dev, "Failed to allocate %s\n", name);
++		return;
++	}
++
++	(*pdev)->dev.parent = rpisense->dev;
++	platform_set_drvdata(*pdev, rpisense);
++	ret = platform_device_add(*pdev);
++	if (ret != 0) {
++		dev_err(rpisense->dev, "Failed to register %s: %d\n",
++			name, ret);
++		platform_device_put(*pdev);
++		*pdev = NULL;
++	}
++}
++
++static int rpisense_probe(struct i2c_client *i2c,
++			       const struct i2c_device_id *id)
++{
++	int ret;
++	struct rpisense_js *rpisense_js;
++
++	rpisense = devm_kzalloc(&i2c->dev, sizeof(struct rpisense), GFP_KERNEL);
++	if (rpisense == NULL)
++		return -ENOMEM;
++
++	i2c_set_clientdata(i2c, rpisense);
++	rpisense->dev = &i2c->dev;
++	rpisense->i2c_client = i2c;
++
++	ret = rpisense_reg_read(rpisense, RPISENSE_WAI);
++	if (ret > 0) {
++		if (ret != 's')
++			return -EINVAL;
++	} else {
++		return ret;
++	}
++	ret = rpisense_reg_read(rpisense, RPISENSE_VER);
++	if (ret < 0)
++		return ret;
++
++	dev_info(rpisense->dev,
++		 "Raspberry Pi Sense HAT firmware version %i\n", ret);
++
++	rpisense_js = &rpisense->joystick;
++	rpisense_js->keys_desc = devm_gpiod_get(&i2c->dev,
++						"keys-int", GPIOD_IN);
++	if (IS_ERR(rpisense_js->keys_desc)) {
++		dev_warn(&i2c->dev, "Failed to get keys-int descriptor.\n");
++		rpisense_js->keys_desc = gpio_to_desc(23);
++		if (rpisense_js->keys_desc == NULL) {
++			dev_err(&i2c->dev, "GPIO23 fallback failed.\n");
++			return PTR_ERR(rpisense_js->keys_desc);
++		}
++	}
++	rpisense_client_dev_register(rpisense, "rpi-sense-js",
++				     &(rpisense->joystick.pdev));
++	rpisense_client_dev_register(rpisense, "rpi-sense-fb",
++				     &(rpisense->framebuffer.pdev));
++
++	return 0;
++}
++
++static int rpisense_remove(struct i2c_client *i2c)
++{
++	struct rpisense *rpisense = i2c_get_clientdata(i2c);
++
++	platform_device_unregister(rpisense->joystick.pdev);
++	return 0;
++}
++
++struct rpisense *rpisense_get_dev(void)
++{
++	return rpisense;
++}
++EXPORT_SYMBOL_GPL(rpisense_get_dev);
++
++s32 rpisense_reg_read(struct rpisense *rpisense, int reg)
++{
++	int ret = i2c_smbus_read_byte_data(rpisense->i2c_client, reg);
++
++	if (ret < 0)
++		dev_err(rpisense->dev, "Read from reg %d failed\n", reg);
++	/* Due to the BCM270x I2C clock stretching bug, some values
++	 * may have MSB set. Clear it to avoid incorrect values.
++	 * */
++	return ret & 0x7F;
++}
++EXPORT_SYMBOL_GPL(rpisense_reg_read);
++
++int rpisense_block_write(struct rpisense *rpisense, const char *buf, int count)
++{
++	int ret = i2c_master_send(rpisense->i2c_client, buf, count);
++
++	if (ret < 0)
++		dev_err(rpisense->dev, "Block write failed\n");
++	return ret;
++}
++EXPORT_SYMBOL_GPL(rpisense_block_write);
++
++static const struct i2c_device_id rpisense_i2c_id[] = {
++	{ "rpi-sense", 0 },
++	{ }
++};
++MODULE_DEVICE_TABLE(i2c, rpisense_i2c_id);
++
++
++static struct i2c_driver rpisense_driver = {
++	.driver = {
++		   .name = "rpi-sense",
++		   .owner = THIS_MODULE,
++	},
++	.probe = rpisense_probe,
++	.remove = rpisense_remove,
++	.id_table = rpisense_i2c_id,
++};
++
++module_i2c_driver(rpisense_driver);
++
++MODULE_DESCRIPTION("Raspberry Pi Sense HAT core driver");
++MODULE_AUTHOR("Serge Schneider <serge@raspberrypi.org>");
++MODULE_LICENSE("GPL");
++
+--- a/drivers/video/fbdev/Kconfig
++++ b/drivers/video/fbdev/Kconfig
+@@ -2355,3 +2355,16 @@ config FB_SM712
+ 	  This driver is also available as a module. The module will be
+ 	  called sm712fb. If you want to compile it as a module, say M
+ 	  here and read <file:Documentation/kbuild/modules.txt>.
++
++config FB_RPISENSE
++	tristate "Raspberry Pi Sense HAT framebuffer"
++	depends on FB
++	select MFD_RPISENSE_CORE
++	select FB_SYS_FOPS
++	select FB_SYS_FILLRECT
++	select FB_SYS_COPYAREA
++	select FB_SYS_IMAGEBLIT
++	select FB_DEFERRED_IO
++
++	help
++	  This is the framebuffer driver for the Raspberry Pi Sense HAT
+--- a/drivers/video/fbdev/Makefile
++++ b/drivers/video/fbdev/Makefile
+@@ -138,6 +138,7 @@ obj-$(CONFIG_FB_DA8XX)		  += da8xx-fb.o
+ obj-$(CONFIG_FB_MXS)		  += mxsfb.o
+ obj-$(CONFIG_FB_SSD1307)	  += ssd1307fb.o
+ obj-$(CONFIG_FB_SIMPLE)           += simplefb.o
++obj-$(CONFIG_FB_RPISENSE)	  += rpisense-fb.o
+ 
+ # the test framebuffer is last
+ obj-$(CONFIG_FB_VIRTUAL)          += vfb.o
+--- /dev/null
++++ b/drivers/video/fbdev/rpisense-fb.c
+@@ -0,0 +1,293 @@
++/*
++ * Raspberry Pi Sense HAT framebuffer driver
++ * http://raspberrypi.org
++ *
++ * Copyright (C) 2015 Raspberry Pi
++ *
++ * Author: Serge Schneider
++ *
++ *  This program is free software; you can redistribute  it and/or modify it
++ *  under  the terms of  the GNU General  Public License as published by the
++ *  Free Software Foundation;  either version 2 of the  License, or (at your
++ *  option) any later version.
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/errno.h>
++#include <linux/string.h>
++#include <linux/mm.h>
++#include <linux/slab.h>
++#include <linux/uaccess.h>
++#include <linux/delay.h>
++#include <linux/fb.h>
++#include <linux/init.h>
++
++#include <linux/mfd/rpisense/framebuffer.h>
++#include <linux/mfd/rpisense/core.h>
++
++static bool lowlight;
++module_param(lowlight, bool, 0);
++MODULE_PARM_DESC(lowlight, "Reduce LED matrix brightness to one third");
++
++static struct rpisense *rpisense;
++
++struct rpisense_fb_param {
++	char __iomem *vmem;
++	u8 *vmem_work;
++	u32 vmemsize;
++	u8 *gamma;
++};
++
++static u8 gamma_default[32] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
++			       0x02, 0x02, 0x03, 0x03, 0x04, 0x05, 0x06, 0x07,
++			       0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0E, 0x0F, 0x11,
++			       0x12, 0x14, 0x15, 0x17, 0x19, 0x1B, 0x1D, 0x1F,};
++
++static u8 gamma_low[32] = {0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
++			   0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02,
++			   0x03, 0x03, 0x03, 0x04, 0x04, 0x05, 0x05, 0x06,
++			   0x06, 0x07, 0x07, 0x08, 0x08, 0x09, 0x0A, 0x0A,};
++
++static u8 gamma_user[32];
++
++static struct rpisense_fb_param rpisense_fb_param = {
++	.vmem = NULL,
++	.vmemsize = 128,
++	.gamma = gamma_default,
++};
++
++static struct fb_deferred_io rpisense_fb_defio;
++
++static struct fb_fix_screeninfo rpisense_fb_fix = {
++	.id =		"RPi-Sense FB",
++	.type =		FB_TYPE_PACKED_PIXELS,
++	.visual =	FB_VISUAL_TRUECOLOR,
++	.xpanstep =	0,
++	.ypanstep =	0,
++	.ywrapstep =	0,
++	.accel =	FB_ACCEL_NONE,
++	.line_length =	16,
++};
++
++static struct fb_var_screeninfo rpisense_fb_var = {
++	.xres		= 8,
++	.yres		= 8,
++	.xres_virtual	= 8,
++	.yres_virtual	= 8,
++	.bits_per_pixel = 16,
++	.red		= {11, 5, 0},
++	.green		= {5, 6, 0},
++	.blue		= {0, 5, 0},
++};
++
++static ssize_t rpisense_fb_write(struct fb_info *info,
++				 const char __user *buf, size_t count,
++				 loff_t *ppos)
++{
++	ssize_t res = fb_sys_write(info, buf, count, ppos);
++
++	schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay);
++	return res;
++}
++
++static void rpisense_fb_fillrect(struct fb_info *info,
++				 const struct fb_fillrect *rect)
++{
++	sys_fillrect(info, rect);
++	schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay);
++}
++
++static void rpisense_fb_copyarea(struct fb_info *info,
++				 const struct fb_copyarea *area)
++{
++	sys_copyarea(info, area);
++	schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay);
++}
++
++static void rpisense_fb_imageblit(struct fb_info *info,
++				  const struct fb_image *image)
++{
++	sys_imageblit(info, image);
++	schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay);
++}
++
++static void rpisense_fb_deferred_io(struct fb_info *info,
++				struct list_head *pagelist)
++{
++	int i;
++	int j;
++	u8 *vmem_work = rpisense_fb_param.vmem_work;
++	u16 *mem = (u16 *)rpisense_fb_param.vmem;
++	u8 *gamma = rpisense_fb_param.gamma;
++
++	vmem_work[0] = 0;
++	for (j = 0; j < 8; j++) {
++		for (i = 0; i < 8; i++) {
++			vmem_work[(j * 24) + i + 1] =
++				gamma[(mem[(j * 8) + i] >> 11) & 0x1F];
++			vmem_work[(j * 24) + (i + 8) + 1] =
++				gamma[(mem[(j * 8) + i] >> 6) & 0x1F];
++			vmem_work[(j * 24) + (i + 16) + 1] =
++				gamma[(mem[(j * 8) + i]) & 0x1F];
++		}
++	}
++	rpisense_block_write(rpisense, vmem_work, 193);
++}
++
++static struct fb_deferred_io rpisense_fb_defio = {
++	.delay		= HZ/100,
++	.deferred_io	= rpisense_fb_deferred_io,
++};
++
++static int rpisense_fb_ioctl(struct fb_info *info, unsigned int cmd,
++			     unsigned long arg)
++{
++	switch (cmd) {
++	case SENSEFB_FBIOGET_GAMMA:
++		if (copy_to_user((void __user *) arg, rpisense_fb_param.gamma,
++				 sizeof(u8[32])))
++			return -EFAULT;
++		return 0;
++	case SENSEFB_FBIOSET_GAMMA:
++		if (copy_from_user(gamma_user, (void __user *)arg,
++				   sizeof(u8[32])))
++			return -EFAULT;
++		rpisense_fb_param.gamma = gamma_user;
++		schedule_delayed_work(&info->deferred_work,
++				      rpisense_fb_defio.delay);
++		return 0;
++	case SENSEFB_FBIORESET_GAMMA:
++		switch (arg) {
++		case 0:
++			rpisense_fb_param.gamma = gamma_default;
++			break;
++		case 1:
++			rpisense_fb_param.gamma = gamma_low;
++			break;
++		case 2:
++			rpisense_fb_param.gamma = gamma_user;
++			break;
++		default:
++			return -EINVAL;
++		}
++		schedule_delayed_work(&info->deferred_work,
++				      rpisense_fb_defio.delay);
++		break;
++	default:
++		return -EINVAL;
++	}
++	return 0;
++}
++
++static struct fb_ops rpisense_fb_ops = {
++	.owner		= THIS_MODULE,
++	.fb_read	= fb_sys_read,
++	.fb_write	= rpisense_fb_write,
++	.fb_fillrect	= rpisense_fb_fillrect,
++	.fb_copyarea	= rpisense_fb_copyarea,
++	.fb_imageblit	= rpisense_fb_imageblit,
++	.fb_ioctl	= rpisense_fb_ioctl,
++};
++
++static int rpisense_fb_probe(struct platform_device *pdev)
++{
++	struct fb_info *info;
++	int ret = -ENOMEM;
++	struct rpisense_fb *rpisense_fb;
++
++	rpisense = rpisense_get_dev();
++	rpisense_fb = &rpisense->framebuffer;
++
++	rpisense_fb_param.vmem = vzalloc(rpisense_fb_param.vmemsize);
++	if (!rpisense_fb_param.vmem)
++		return ret;
++
++	rpisense_fb_param.vmem_work = devm_kmalloc(&pdev->dev, 193, GFP_KERNEL);
++	if (!rpisense_fb_param.vmem_work)
++		goto err_malloc;
++
++	info = framebuffer_alloc(0, &pdev->dev);
++	if (!info) {
++		dev_err(&pdev->dev, "Could not allocate framebuffer.\n");
++		goto err_malloc;
++	}
++	rpisense_fb->info = info;
++
++	rpisense_fb_fix.smem_start = (unsigned long)rpisense_fb_param.vmem;
++	rpisense_fb_fix.smem_len = rpisense_fb_param.vmemsize;
++
++	info->fbops = &rpisense_fb_ops;
++	info->fix = rpisense_fb_fix;
++	info->var = rpisense_fb_var;
++	info->fbdefio = &rpisense_fb_defio;
++	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
++	info->screen_base = rpisense_fb_param.vmem;
++	info->screen_size = rpisense_fb_param.vmemsize;
++
++	if (lowlight)
++		rpisense_fb_param.gamma = gamma_low;
++
++	fb_deferred_io_init(info);
++
++	ret = register_framebuffer(info);
++	if (ret < 0) {
++		dev_err(&pdev->dev, "Could not register framebuffer.\n");
++		goto err_fballoc;
++	}
++
++	fb_info(info, "%s frame buffer device\n", info->fix.id);
++	schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay);
++	return 0;
++err_fballoc:
++	framebuffer_release(info);
++err_malloc:
++	vfree(rpisense_fb_param.vmem);
++	return ret;
++}
++
++static int rpisense_fb_remove(struct platform_device *pdev)
++{
++	struct rpisense_fb *rpisense_fb = &rpisense->framebuffer;
++	struct fb_info *info = rpisense_fb->info;
++
++	if (info) {
++		unregister_framebuffer(info);
++		fb_deferred_io_cleanup(info);
++		framebuffer_release(info);
++		vfree(rpisense_fb_param.vmem);
++	}
++
++	return 0;
++}
++
++#ifdef CONFIG_OF
++static const struct of_device_id rpisense_fb_id[] = {
++	{ .compatible = "rpi,rpi-sense-fb" },
++	{ },
++};
++MODULE_DEVICE_TABLE(of, rpisense_fb_id);
++#endif
++
++static struct platform_device_id rpisense_fb_device_id[] = {
++	{ .name = "rpi-sense-fb" },
++	{ },
++};
++MODULE_DEVICE_TABLE(platform, rpisense_fb_device_id);
++
++static struct platform_driver rpisense_fb_driver = {
++	.probe = rpisense_fb_probe,
++	.remove = rpisense_fb_remove,
++	.driver = {
++		.name = "rpi-sense-fb",
++		.owner = THIS_MODULE,
++	},
++};
++
++module_platform_driver(rpisense_fb_driver);
++
++MODULE_DESCRIPTION("Raspberry Pi Sense HAT framebuffer driver");
++MODULE_AUTHOR("Serge Schneider <serge@raspberrypi.org>");
++MODULE_LICENSE("GPL");
++
+--- /dev/null
++++ b/include/linux/mfd/rpisense/core.h
+@@ -0,0 +1,47 @@
++/*
++ * Raspberry Pi Sense HAT core driver
++ * http://raspberrypi.org
++ *
++ * Copyright (C) 2015 Raspberry Pi
++ *
++ * Author: Serge Schneider
++ *
++ *  This program is free software; you can redistribute  it and/or modify it
++ *  under  the terms of  the GNU General  Public License as published by the
++ *  Free Software Foundation;  either version 2 of the  License, or (at your
++ *  option) any later version.
++ *
++ */
++
++#ifndef __LINUX_MFD_RPISENSE_CORE_H_
++#define __LINUX_MFD_RPISENSE_CORE_H_
++
++#include <linux/mfd/rpisense/joystick.h>
++#include <linux/mfd/rpisense/framebuffer.h>
++
++/*
++ * Register values.
++ */
++#define RPISENSE_FB			0x00
++#define RPISENSE_WAI			0xF0
++#define RPISENSE_VER			0xF1
++#define RPISENSE_KEYS			0xF2
++#define RPISENSE_EE_WP			0xF3
++
++#define RPISENSE_ID			's'
++
++struct rpisense {
++	struct device *dev;
++	struct i2c_client *i2c_client;
++
++	/* Client devices */
++	struct rpisense_js joystick;
++	struct rpisense_fb framebuffer;
++};
++
++struct rpisense *rpisense_get_dev(void);
++s32 rpisense_reg_read(struct rpisense *rpisense, int reg);
++int rpisense_reg_write(struct rpisense *rpisense, int reg, u16 val);
++int rpisense_block_write(struct rpisense *rpisense, const char *buf, int count);
++
++#endif
+--- /dev/null
++++ b/include/linux/mfd/rpisense/framebuffer.h
+@@ -0,0 +1,32 @@
++/*
++ * Raspberry Pi Sense HAT framebuffer driver
++ * http://raspberrypi.org
++ *
++ * Copyright (C) 2015 Raspberry Pi
++ *
++ * Author: Serge Schneider
++ *
++ *  This program is free software; you can redistribute  it and/or modify it
++ *  under  the terms of  the GNU General  Public License as published by the
++ *  Free Software Foundation;  either version 2 of the  License, or (at your
++ *  option) any later version.
++ *
++ */
++
++#ifndef __LINUX_RPISENSE_FB_H_
++#define __LINUX_RPISENSE_FB_H_
++
++#define SENSEFB_FBIO_IOC_MAGIC 0xF1
++
++#define SENSEFB_FBIOGET_GAMMA _IO(SENSEFB_FBIO_IOC_MAGIC, 0)
++#define SENSEFB_FBIOSET_GAMMA _IO(SENSEFB_FBIO_IOC_MAGIC, 1)
++#define SENSEFB_FBIORESET_GAMMA _IO(SENSEFB_FBIO_IOC_MAGIC, 2)
++
++struct rpisense;
++
++struct rpisense_fb {
++	struct platform_device *pdev;
++	struct fb_info *info;
++};
++
++#endif
+--- /dev/null
++++ b/include/linux/mfd/rpisense/joystick.h
+@@ -0,0 +1,35 @@
++/*
++ * Raspberry Pi Sense HAT joystick driver
++ * http://raspberrypi.org
++ *
++ * Copyright (C) 2015 Raspberry Pi
++ *
++ * Author: Serge Schneider
++ *
++ *  This program is free software; you can redistribute  it and/or modify it
++ *  under  the terms of  the GNU General  Public License as published by the
++ *  Free Software Foundation;  either version 2 of the  License, or (at your
++ *  option) any later version.
++ *
++ */
++
++#ifndef __LINUX_RPISENSE_JOYSTICK_H_
++#define __LINUX_RPISENSE_JOYSTICK_H_
++
++#include <linux/input.h>
++#include <linux/interrupt.h>
++#include <linux/gpio/consumer.h>
++#include <linux/platform_device.h>
++
++struct rpisense;
++
++struct rpisense_js {
++	struct platform_device *pdev;
++	struct input_dev *keys_dev;
++	struct gpio_desc *keys_desc;
++	struct work_struct keys_work_s;
++	int keys_irq;
++};
++
++
++#endif

target/linux/brcm2708/patches-4.19/950-0065-ASoC-pcm512x-implement-set_tdm_slot-interface.patch

@@ -0,0 +1,80 @@
+From 099cc7ff40bca5c9203100aaca2ab69bc7b669ac Mon Sep 17 00:00:00 2001
+From: Matthias Reichl <hias@horus.com>
+Date: Thu, 22 Feb 2018 11:55:06 +0100
+Subject: [PATCH 065/703] ASoC: pcm512x: implement set_tdm_slot interface
+
+PCM512x can accept data padded with additional BCLK cycles
+but the driver currently lacks an interface to configure this.
+
+This leads to the problem that S24_LE format in master mode
+can result in non-integer clock divisors and pcm512x running
+at a rather off rate.
+
+For example 48kHz with 48fs BCLK and SCLK at 24.576MHz uses
+a divisor of 10 (rounded down from 10.6666) and results in a
+51.2kHz LRCLK. With 64fs BCLK a divisor of 8 is used and
+LRCLK runs at exactly 48kHz.
+
+Fix this by providing a minimal set_tdm_slot implementation
+so machine drivers can optionally configure custom BCLK ratios.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ sound/soc/codecs/pcm512x.c | 28 +++++++++++++++++++++++++++-
+ 1 file changed, 27 insertions(+), 1 deletion(-)
+
+--- a/sound/soc/codecs/pcm512x.c
++++ b/sound/soc/codecs/pcm512x.c
+@@ -53,6 +53,7 @@ struct pcm512x_priv {
+ 	unsigned long overclock_pll;
+ 	unsigned long overclock_dac;
+ 	unsigned long overclock_dsp;
++	int lrclk_div;
+ };
+ 
+ /*
+@@ -851,7 +852,10 @@ static int pcm512x_set_dividers(struct s
+ 	int fssp;
+ 	int gpio;
+ 
+-	lrclk_div = snd_soc_params_to_frame_size(params);
++	if (pcm512x->lrclk_div)
++		lrclk_div = pcm512x->lrclk_div;
++	else
++		lrclk_div = snd_soc_params_to_frame_size(params);
+ 	if (lrclk_div == 0) {
+ 		dev_err(dev, "No LRCLK?\n");
+ 		return -EINVAL;
+@@ -1319,10 +1323,32 @@ static int pcm512x_set_fmt(struct snd_so
+ 	return 0;
+ }
+ 
++static int pcm512x_set_tdm_slot(struct snd_soc_dai *dai,
++	unsigned int tx_mask, unsigned int rx_mask,
++	int slots, int width)
++{
++	struct snd_soc_component *component = dai->component;
++	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
++
++	switch (slots) {
++	case 0:
++		pcm512x->lrclk_div = 0;
++		return 0;
++	case 2:
++		if (tx_mask != 0x03 || rx_mask != 0x03)
++			return -EINVAL;
++		pcm512x->lrclk_div = slots * width;
++		return 0;
++	default:
++		return -EINVAL;
++	}
++}
++
+ static const struct snd_soc_dai_ops pcm512x_dai_ops = {
+ 	.startup = pcm512x_dai_startup,
+ 	.hw_params = pcm512x_hw_params,
+ 	.set_fmt = pcm512x_set_fmt,
++	.set_tdm_slot = pcm512x_set_tdm_slot,
+ };
+ 
+ static struct snd_soc_dai_driver pcm512x_dai = {

target/linux/brcm2708/patches-4.19/950-0066-ASoC-Add-support-for-Rpi-DAC.patch

@@ -0,0 +1,123 @@
+From 2112d06f09c1ecd601de065351bc60b08fc53bca Mon Sep 17 00:00:00 2001
+From: Florian Meier <florian.meier@koalo.de>
+Date: Mon, 25 Jan 2016 15:48:59 +0000
+Subject: [PATCH 066/703] ASoC: Add support for Rpi-DAC
+
+---
+ sound/soc/codecs/Kconfig    |  5 +++
+ sound/soc/codecs/Makefile   |  2 ++
+ sound/soc/codecs/pcm1794a.c | 69 +++++++++++++++++++++++++++++++++++++
+ 3 files changed, 76 insertions(+)
+ create mode 100644 sound/soc/codecs/pcm1794a.c
+
+--- a/sound/soc/codecs/Kconfig
++++ b/sound/soc/codecs/Kconfig
+@@ -118,6 +118,7 @@ config SND_SOC_ALL_CODECS
+ 	select SND_SOC_PCM179X_SPI if SPI_MASTER
+ 	select SND_SOC_PCM186X_I2C if I2C
+ 	select SND_SOC_PCM186X_SPI if SPI_MASTER
++	select SND_SOC_PCM1794A if I2C
+ 	select SND_SOC_PCM3008
+ 	select SND_SOC_PCM3168A_I2C if I2C
+ 	select SND_SOC_PCM3168A_SPI if SPI_MASTER
+@@ -834,6 +835,10 @@ config SND_SOC_RT5616
+ 	tristate "Realtek RT5616 CODEC"
+ 	depends on I2C
+ 
++config SND_SOC_PCM1794A
++	tristate
++	depends on I2C
++
+ config SND_SOC_RT5631
+ 	tristate "Realtek ALC5631/RT5631 CODEC"
+ 	depends on I2C
+--- a/sound/soc/codecs/Makefile
++++ b/sound/soc/codecs/Makefile
+@@ -118,6 +118,7 @@ snd-soc-pcm179x-spi-objs := pcm179x-spi.
+ snd-soc-pcm186x-objs := pcm186x.o
+ snd-soc-pcm186x-i2c-objs := pcm186x-i2c.o
+ snd-soc-pcm186x-spi-objs := pcm186x-spi.o
++snd-soc-pcm1794a-objs := pcm1794a.o
+ snd-soc-pcm3008-objs := pcm3008.o
+ snd-soc-pcm3168a-objs := pcm3168a.o
+ snd-soc-pcm3168a-i2c-objs := pcm3168a-i2c.o
+@@ -386,6 +387,7 @@ obj-$(CONFIG_SND_SOC_PCM5102A)	+= snd-so
+ obj-$(CONFIG_SND_SOC_PCM512x)	+= snd-soc-pcm512x.o
+ obj-$(CONFIG_SND_SOC_PCM512x_I2C)	+= snd-soc-pcm512x-i2c.o
+ obj-$(CONFIG_SND_SOC_PCM512x_SPI)	+= snd-soc-pcm512x-spi.o
++obj-$(CONFIG_SND_SOC_PCM1794A)	+= snd-soc-pcm1794a.o
+ obj-$(CONFIG_SND_SOC_RL6231)	+= snd-soc-rl6231.o
+ obj-$(CONFIG_SND_SOC_RL6347A)	+= snd-soc-rl6347a.o
+ obj-$(CONFIG_SND_SOC_RT1305)	+= snd-soc-rt1305.o
+--- /dev/null
++++ b/sound/soc/codecs/pcm1794a.c
+@@ -0,0 +1,69 @@
++/*
++ * Driver for the PCM1794A codec
++ *
++ * Author:	Florian Meier <florian.meier@koalo.de>
++ *		Copyright 2013
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/soc.h>
++
++static struct snd_soc_dai_driver pcm1794a_dai = {
++	.name = "pcm1794a-hifi",
++	.playback = {
++		.channels_min = 2,
++		.channels_max = 2,
++		.rates = SNDRV_PCM_RATE_8000_192000,
++		.formats = SNDRV_PCM_FMTBIT_S16_LE |
++			   SNDRV_PCM_FMTBIT_S24_LE
++	},
++};
++
++static struct snd_soc_component_driver soc_component_dev_pcm1794a;
++
++static int pcm1794a_probe(struct platform_device *pdev)
++{
++	return snd_soc_register_component(&pdev->dev, &soc_component_dev_pcm1794a,
++			&pcm1794a_dai, 1);
++}
++
++static int pcm1794a_remove(struct platform_device *pdev)
++{
++	snd_soc_unregister_component(&pdev->dev);
++	return 0;
++}
++
++static const struct of_device_id pcm1794a_of_match[] = {
++	{ .compatible = "ti,pcm1794a", },
++	{ }
++};
++MODULE_DEVICE_TABLE(of, pcm1794a_of_match);
++
++static struct platform_driver pcm1794a_component_driver = {
++	.probe 		= pcm1794a_probe,
++	.remove 	= pcm1794a_remove,
++	.driver		= {
++		.name	= "pcm1794a-codec",
++		.owner	= THIS_MODULE,
++		.of_match_table = of_match_ptr(pcm1794a_of_match),
++	},
++};
++
++module_platform_driver(pcm1794a_component_driver);
++
++MODULE_DESCRIPTION("ASoC PCM1794A codec driver");
++MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>");
++MODULE_LICENSE("GPL v2");

target/linux/brcm2708/patches-4.19/950-0067-Add-IQaudIO-Sound-Card-support-for-Raspberry-Pi.patch

@@ -0,0 +1,292 @@
+From c8aa8a71618c103d09ae7fa05d5f65c111581194 Mon Sep 17 00:00:00 2001
+From: Gordon Garrity <gordon@iqaudio.com>
+Date: Sat, 8 Mar 2014 16:56:57 +0000
+Subject: [PATCH 067/703] Add IQaudIO Sound Card support for Raspberry Pi
+
+Set a limit of 0dB on Digital Volume Control
+
+The main volume control in the PCM512x DAC has a range up to
++24dB. This is dangerously loud and can potentially cause massive
+clipping in the output stages. Therefore this sets a sensible
+limit of 0dB for this control.
+
+Allow up to 24dB digital gain to be applied when using IQAudIO DAC+
+
+24db_digital_gain DT param can be used to specify that PCM512x
+codec "Digital" volume control should not be limited to 0dB gain,
+and if specified will allow the full 24dB gain.
+
+Modify IQAudIO DAC+ ASoC driver to set card/dai config from dt
+
+Add the ability to set the card name, dai name and dai stream name, from
+dt config.
+
+Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
+
+IQaudIO: auto-mute for AMP+ and DigiAMP+
+
+IQAudIO amplifier mute via GPIO22. Add dt params for "one-shot" unmute
+and auto mute.
+
+Revision 2, auto mute implementing HiassofT suggestion to mute/unmute
+using set_bias_level, rather than startup/shutdown....
+"By default DAPM waits 5 seconds (pmdown_time) before shutting down
+playback streams so a close/stop immediately followed by open/start
+doesn't trigger an amp mute+unmute."
+
+Tested on both AMP+ (via DAC+) and DigiAMP+, with both options...
+
+dtoverlay=iqaudio-dacplus,unmute_amp
+ "one-shot" unmute when kernel module loads.
+
+dtoverlay=iqaudio-dacplus,auto_mute_amp
+ Unmute amp when ALSA device opened by a client. Mute, with 5 second delay
+ when ALSA device closed. (Re-opening the device within the 5 second close
+ window, will cancel mute.)
+
+Revision 4, using gpiod.
+
+Revision 5, clean-up formatting before adding mute code.
+ - Convert tab plus 4 space formatting to 2x tab
+ - Remove '// NOT USED' commented code
+
+Revision 6, don't attempt to "one-shot" unmute amp, unless card is
+successfully registered.
+
+Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
+
+ASoC: iqaudio-dac: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ sound/soc/bcm/iqaudio-dac.c | 221 ++++++++++++++++++++++++++++++++++++
+ 1 file changed, 221 insertions(+)
+ create mode 100644 sound/soc/bcm/iqaudio-dac.c
+
+--- /dev/null
++++ b/sound/soc/bcm/iqaudio-dac.c
+@@ -0,0 +1,221 @@
++/*
++ * ASoC Driver for IQaudIO DAC
++ *
++ * Author:	Florian Meier <florian.meier@koalo.de>
++ *		Copyright 2013
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/gpio/consumer.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++static bool digital_gain_0db_limit = true;
++
++static struct gpio_desc *mute_gpio;
++
++static int snd_rpi_iqaudio_dac_init(struct snd_soc_pcm_runtime *rtd)
++{
++	if (digital_gain_0db_limit)
++	{
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
++	}
++
++	return 0;
++}
++
++static void snd_rpi_iqaudio_gpio_mute(struct snd_soc_card *card)
++{
++	if (mute_gpio) {
++		dev_info(card->dev, "%s: muting amp using GPIO22\n",
++			 __func__);
++		gpiod_set_value_cansleep(mute_gpio, 0);
++	}
++}
++
++static void snd_rpi_iqaudio_gpio_unmute(struct snd_soc_card *card)
++{
++	if (mute_gpio) {
++		dev_info(card->dev, "%s: un-muting amp using GPIO22\n",
++			 __func__);
++		gpiod_set_value_cansleep(mute_gpio, 1);
++	}
++}
++
++static int snd_rpi_iqaudio_set_bias_level(struct snd_soc_card *card,
++	struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level)
++{
++	struct snd_soc_pcm_runtime *rtd;
++	struct snd_soc_dai *codec_dai;
++
++	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
++	codec_dai = rtd->codec_dai;
++
++	if (dapm->dev != codec_dai->dev)
++		return 0;
++
++	switch (level) {
++	case SND_SOC_BIAS_PREPARE:
++		if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
++			break;
++
++		/* UNMUTE AMP */
++		snd_rpi_iqaudio_gpio_unmute(card);
++
++		break;
++	case SND_SOC_BIAS_STANDBY:
++		if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
++			break;
++
++		/* MUTE AMP */
++		snd_rpi_iqaudio_gpio_mute(card);
++
++		break;
++	default:
++		break;
++	}
++
++	return 0;
++}
++
++static struct snd_soc_dai_link snd_rpi_iqaudio_dac_dai[] = {
++{
++	.cpu_dai_name	= "bcm2708-i2s.0",
++	.codec_dai_name	= "pcm512x-hifi",
++	.platform_name	= "bcm2708-i2s.0",
++	.codec_name	= "pcm512x.1-004c",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBS_CFS,
++	.init		= snd_rpi_iqaudio_dac_init,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_iqaudio_dac = {
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_rpi_iqaudio_dac_dai,
++	.num_links    = ARRAY_SIZE(snd_rpi_iqaudio_dac_dai),
++};
++
++static int snd_rpi_iqaudio_dac_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++	bool gpio_unmute = false;
++
++	snd_rpi_iqaudio_dac.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_card *card = &snd_rpi_iqaudio_dac;
++		struct snd_soc_dai_link *dai = &snd_rpi_iqaudio_dac_dai[0];
++		bool auto_gpio_mute = false;
++
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++					    "i2s-controller", 0);
++		if (i2s_node) {
++			dai->cpu_dai_name = NULL;
++			dai->cpu_of_node = i2s_node;
++			dai->platform_name = NULL;
++			dai->platform_of_node = i2s_node;
++		}
++
++		digital_gain_0db_limit = !of_property_read_bool(
++			pdev->dev.of_node, "iqaudio,24db_digital_gain");
++
++		if (of_property_read_string(pdev->dev.of_node, "card_name",
++					    &card->name))
++			card->name = "IQaudIODAC";
++
++		if (of_property_read_string(pdev->dev.of_node, "dai_name",
++					    &dai->name))
++			dai->name = "IQaudIO DAC";
++
++		if (of_property_read_string(pdev->dev.of_node,
++					"dai_stream_name", &dai->stream_name))
++			dai->stream_name = "IQaudIO DAC HiFi";
++
++		/* gpio_unmute - one time unmute amp using GPIO */
++		gpio_unmute = of_property_read_bool(pdev->dev.of_node,
++						    "iqaudio-dac,unmute-amp");
++
++		/* auto_gpio_mute - mute/unmute amp using GPIO */
++		auto_gpio_mute = of_property_read_bool(pdev->dev.of_node,
++						"iqaudio-dac,auto-mute-amp");
++
++		if (auto_gpio_mute || gpio_unmute) {
++			mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute",
++							    GPIOD_OUT_LOW);
++			if (IS_ERR(mute_gpio)) {
++				ret = PTR_ERR(mute_gpio);
++				dev_err(&pdev->dev,
++					"Failed to get mute gpio: %d\n", ret);
++				return ret;
++			}
++
++			if (auto_gpio_mute && mute_gpio)
++				snd_rpi_iqaudio_dac.set_bias_level =
++						snd_rpi_iqaudio_set_bias_level;
++		}
++	}
++
++	ret = snd_soc_register_card(&snd_rpi_iqaudio_dac);
++	if (ret) {
++		if (ret != -EPROBE_DEFER)
++			dev_err(&pdev->dev,
++				"snd_soc_register_card() failed: %d\n", ret);
++		return ret;
++	}
++
++	if (gpio_unmute && mute_gpio)
++		snd_rpi_iqaudio_gpio_unmute(&snd_rpi_iqaudio_dac);
++
++	return 0;
++}
++
++static int snd_rpi_iqaudio_dac_remove(struct platform_device *pdev)
++{
++	snd_rpi_iqaudio_gpio_mute(&snd_rpi_iqaudio_dac);
++
++	return snd_soc_unregister_card(&snd_rpi_iqaudio_dac);
++}
++
++static const struct of_device_id iqaudio_of_match[] = {
++	{ .compatible = "iqaudio,iqaudio-dac", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, iqaudio_of_match);
++
++static struct platform_driver snd_rpi_iqaudio_dac_driver = {
++	.driver = {
++		.name   = "snd-rpi-iqaudio-dac",
++		.owner  = THIS_MODULE,
++		.of_match_table = iqaudio_of_match,
++	},
++	.probe          = snd_rpi_iqaudio_dac_probe,
++	.remove         = snd_rpi_iqaudio_dac_remove,
++};
++
++module_platform_driver(snd_rpi_iqaudio_dac_driver);
++
++MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>");
++MODULE_DESCRIPTION("ASoC Driver for IQAudio DAC");
++MODULE_LICENSE("GPL v2");

target/linux/brcm2708/patches-4.19/950-0068-Added-support-for-HiFiBerry-DAC.patch

@@ -0,0 +1,595 @@
+From c383086fd519fcf61f3c5a35e937685f6f34832e Mon Sep 17 00:00:00 2001
+From: Daniel Matuschek <info@crazy-audio.com>
+Date: Mon, 4 Aug 2014 10:06:56 +0200
+Subject: [PATCH 068/703] Added support for HiFiBerry DAC+
+
+The driver is based on the HiFiBerry DAC driver. However HiFiBerry DAC+ uses
+a different codec chip (PCM5122), therefore a new driver is necessary.
+
+Add support for the HiFiBerry DAC+ Pro.
+
+The HiFiBerry DAC+ and DAC+ Pro products both use the existing bcm sound driver with the DAC+ Pro having a special clock device driver representing the two high precision oscillators.
+
+An addition bug fix is included for the PCM512x codec where by the physical size of the sample frame is used in the calculation of the LRCK divisor as it was found to be wrong when using 24-bit depth sample contained in a little endian 4-byte sample frame.
+
+Limit PCM512x "Digital" gain to 0dB by default with HiFiBerry DAC+
+
+24db_digital_gain DT param can be used to specify that PCM512x
+codec "Digital" volume control should not be limited to 0dB gain,
+and if specified will allow the full 24dB gain.
+
+Add dt param to force HiFiBerry DAC+ Pro into slave mode
+
+"dtoverlay=hifiberry-dacplus,slave"
+
+Add 'slave' param to use HiFiBerry DAC+ Pro in slave mode,
+with Pi as master for bit and frame clock.
+
+Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
+
+Fixed a bug when using 352.8kHz sample rate
+
+Signed-off-by: Daniel Matuschek <daniel@hifiberry.com>
+
+ASoC: pcm512x: revert downstream changes
+
+This partially reverts commit 185ea05465aac8bf02a0d2b2f4289d42c72870b7
+which was added by https://github.com/raspberrypi/linux/pull/1152
+
+The downstream pcm512x changes caused a regression, it broke normal
+use of the 24bit format with the codec, eg when using simple-audio-card.
+
+The actual bug with 24bit playback is the incorrect usage
+of physical_width in various drivers in the downstream tree
+which causes 24bit data to be transmitted with 32 clock
+cycles. So it's not the pcm512x that needs fixing, it's the
+soundcard drivers.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: hifiberry_dacplus: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: hifiberry_dacplus: transmit S24_LE with 64 BCLK cycles
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ drivers/clk/Makefile               |   1 +
+ drivers/clk/clk-hifiberry-dacpro.c | 160 +++++++++++++
+ sound/soc/bcm/hifiberry_dacplus.c  | 352 +++++++++++++++++++++++++++++
+ 3 files changed, 513 insertions(+)
+ create mode 100644 drivers/clk/clk-hifiberry-dacpro.c
+ create mode 100644 sound/soc/bcm/hifiberry_dacplus.c
+
+--- a/drivers/clk/Makefile
++++ b/drivers/clk/Makefile
+@@ -30,6 +30,7 @@ obj-$(CONFIG_COMMON_CLK_GEMINI)		+= clk-
+ obj-$(CONFIG_COMMON_CLK_ASPEED)		+= clk-aspeed.o
+ obj-$(CONFIG_ARCH_HIGHBANK)		+= clk-highbank.o
+ obj-$(CONFIG_CLK_HSDK)			+= clk-hsdk-pll.o
++obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += clk-hifiberry-dacpro.o
+ obj-$(CONFIG_COMMON_CLK_MAX77686)	+= clk-max77686.o
+ obj-$(CONFIG_COMMON_CLK_MAX9485)	+= clk-max9485.o
+ obj-$(CONFIG_ARCH_MOXART)		+= clk-moxart.o
+--- /dev/null
++++ b/drivers/clk/clk-hifiberry-dacpro.c
+@@ -0,0 +1,160 @@
++/*
++ * Clock Driver for HiFiBerry DAC Pro
++ *
++ * Author: Stuart MacLean
++ *         Copyright 2015
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/clk-provider.h>
++#include <linux/clkdev.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/slab.h>
++#include <linux/platform_device.h>
++
++/* Clock rate of CLK44EN attached to GPIO6 pin */
++#define CLK_44EN_RATE 22579200UL
++/* Clock rate of CLK48EN attached to GPIO3 pin */
++#define CLK_48EN_RATE 24576000UL
++
++/**
++ * struct hifiberry_dacpro_clk - Common struct to the HiFiBerry DAC Pro
++ * @hw: clk_hw for the common clk framework
++ * @mode: 0 => CLK44EN, 1 => CLK48EN
++ */
++struct clk_hifiberry_hw {
++	struct clk_hw hw;
++	uint8_t mode;
++};
++
++#define to_hifiberry_clk(_hw) container_of(_hw, struct clk_hifiberry_hw, hw)
++
++static const struct of_device_id clk_hifiberry_dacpro_dt_ids[] = {
++	{ .compatible = "hifiberry,dacpro-clk",},
++	{ }
++};
++MODULE_DEVICE_TABLE(of, clk_hifiberry_dacpro_dt_ids);
++
++static unsigned long clk_hifiberry_dacpro_recalc_rate(struct clk_hw *hw,
++	unsigned long parent_rate)
++{
++	return (to_hifiberry_clk(hw)->mode == 0) ? CLK_44EN_RATE :
++		CLK_48EN_RATE;
++}
++
++static long clk_hifiberry_dacpro_round_rate(struct clk_hw *hw,
++	unsigned long rate, unsigned long *parent_rate)
++{
++	long actual_rate;
++
++	if (rate <= CLK_44EN_RATE) {
++		actual_rate = (long)CLK_44EN_RATE;
++	} else if (rate >= CLK_48EN_RATE) {
++		actual_rate = (long)CLK_48EN_RATE;
++	} else {
++		long diff44Rate = (long)(rate - CLK_44EN_RATE);
++		long diff48Rate = (long)(CLK_48EN_RATE - rate);
++
++		if (diff44Rate < diff48Rate)
++			actual_rate = (long)CLK_44EN_RATE;
++		else
++			actual_rate = (long)CLK_48EN_RATE;
++	}
++	return actual_rate;
++}
++
++
++static int clk_hifiberry_dacpro_set_rate(struct clk_hw *hw,
++	unsigned long rate, unsigned long parent_rate)
++{
++	unsigned long actual_rate;
++	struct clk_hifiberry_hw *clk = to_hifiberry_clk(hw);
++
++	actual_rate = (unsigned long)clk_hifiberry_dacpro_round_rate(hw, rate,
++		&parent_rate);
++	clk->mode = (actual_rate == CLK_44EN_RATE) ? 0 : 1;
++	return 0;
++}
++
++
++const struct clk_ops clk_hifiberry_dacpro_rate_ops = {
++	.recalc_rate = clk_hifiberry_dacpro_recalc_rate,
++	.round_rate = clk_hifiberry_dacpro_round_rate,
++	.set_rate = clk_hifiberry_dacpro_set_rate,
++};
++
++static int clk_hifiberry_dacpro_probe(struct platform_device *pdev)
++{
++	int ret;
++	struct clk_hifiberry_hw *proclk;
++	struct clk *clk;
++	struct device *dev;
++	struct clk_init_data init;
++
++	dev = &pdev->dev;
++
++	proclk = kzalloc(sizeof(struct clk_hifiberry_hw), GFP_KERNEL);
++	if (!proclk)
++		return -ENOMEM;
++
++	init.name = "clk-hifiberry-dacpro";
++	init.ops = &clk_hifiberry_dacpro_rate_ops;
++	init.flags = CLK_IS_BASIC;
++	init.parent_names = NULL;
++	init.num_parents = 0;
++
++	proclk->mode = 0;
++	proclk->hw.init = &init;
++
++	clk = devm_clk_register(dev, &proclk->hw);
++	if (!IS_ERR(clk)) {
++		ret = of_clk_add_provider(dev->of_node, of_clk_src_simple_get,
++			clk);
++	} else {
++		dev_err(dev, "Fail to register clock driver\n");
++		kfree(proclk);
++		ret = PTR_ERR(clk);
++	}
++	return ret;
++}
++
++static int clk_hifiberry_dacpro_remove(struct platform_device *pdev)
++{
++	of_clk_del_provider(pdev->dev.of_node);
++	return 0;
++}
++
++static struct platform_driver clk_hifiberry_dacpro_driver = {
++	.probe = clk_hifiberry_dacpro_probe,
++	.remove = clk_hifiberry_dacpro_remove,
++	.driver = {
++		.name = "clk-hifiberry-dacpro",
++		.of_match_table = clk_hifiberry_dacpro_dt_ids,
++	},
++};
++
++static int __init clk_hifiberry_dacpro_init(void)
++{
++	return platform_driver_register(&clk_hifiberry_dacpro_driver);
++}
++core_initcall(clk_hifiberry_dacpro_init);
++
++static void __exit clk_hifiberry_dacpro_exit(void)
++{
++	platform_driver_unregister(&clk_hifiberry_dacpro_driver);
++}
++module_exit(clk_hifiberry_dacpro_exit);
++
++MODULE_DESCRIPTION("HiFiBerry DAC Pro clock driver");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:clk-hifiberry-dacpro");
+--- /dev/null
++++ b/sound/soc/bcm/hifiberry_dacplus.c
+@@ -0,0 +1,352 @@
++/*
++ * ASoC Driver for HiFiBerry DAC+ / DAC Pro
++ *
++ * Author:	Daniel Matuschek, Stuart MacLean <stuart@hifiberry.com>
++ *		Copyright 2014-2015
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/kernel.h>
++#include <linux/clk.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/slab.h>
++#include <linux/delay.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#include "../codecs/pcm512x.h"
++
++#define HIFIBERRY_DACPRO_NOCLOCK 0
++#define HIFIBERRY_DACPRO_CLK44EN 1
++#define HIFIBERRY_DACPRO_CLK48EN 2
++
++struct pcm512x_priv {
++	struct regmap *regmap;
++	struct clk *sclk;
++};
++
++/* Clock rate of CLK44EN attached to GPIO6 pin */
++#define CLK_44EN_RATE 22579200UL
++/* Clock rate of CLK48EN attached to GPIO3 pin */
++#define CLK_48EN_RATE 24576000UL
++
++static bool slave;
++static bool snd_rpi_hifiberry_is_dacpro;
++static bool digital_gain_0db_limit = true;
++
++static void snd_rpi_hifiberry_dacplus_select_clk(struct snd_soc_component *component,
++	int clk_id)
++{
++	switch (clk_id) {
++	case HIFIBERRY_DACPRO_NOCLOCK:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x00);
++		break;
++	case HIFIBERRY_DACPRO_CLK44EN:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x20);
++		break;
++	case HIFIBERRY_DACPRO_CLK48EN:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
++		break;
++	}
++}
++
++static void snd_rpi_hifiberry_dacplus_clk_gpio(struct snd_soc_component *component)
++{
++	snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x24, 0x24);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02);
++}
++
++static bool snd_rpi_hifiberry_dacplus_is_sclk(struct snd_soc_component *component)
++{
++	unsigned int sck;
++
++	snd_soc_component_read(component, PCM512x_RATE_DET_4, &sck);
++	return (!(sck & 0x40));
++}
++
++static bool snd_rpi_hifiberry_dacplus_is_sclk_sleep(
++	struct snd_soc_component *component)
++{
++	msleep(2);
++	return snd_rpi_hifiberry_dacplus_is_sclk(component);
++}
++
++static bool snd_rpi_hifiberry_dacplus_is_pro_card(struct snd_soc_component *component)
++{
++	bool isClk44EN, isClk48En, isNoClk;
++
++	snd_rpi_hifiberry_dacplus_clk_gpio(component);
++
++	snd_rpi_hifiberry_dacplus_select_clk(component, HIFIBERRY_DACPRO_CLK44EN);
++	isClk44EN = snd_rpi_hifiberry_dacplus_is_sclk_sleep(component);
++
++	snd_rpi_hifiberry_dacplus_select_clk(component, HIFIBERRY_DACPRO_NOCLOCK);
++	isNoClk = snd_rpi_hifiberry_dacplus_is_sclk_sleep(component);
++
++	snd_rpi_hifiberry_dacplus_select_clk(component, HIFIBERRY_DACPRO_CLK48EN);
++	isClk48En = snd_rpi_hifiberry_dacplus_is_sclk_sleep(component);
++
++	return (isClk44EN && isClk48En && !isNoClk);
++}
++
++static int snd_rpi_hifiberry_dacplus_clk_for_rate(int sample_rate)
++{
++	int type;
++
++	switch (sample_rate) {
++	case 11025:
++	case 22050:
++	case 44100:
++	case 88200:
++	case 176400:
++	case 352800:
++		type = HIFIBERRY_DACPRO_CLK44EN;
++		break;
++	default:
++		type = HIFIBERRY_DACPRO_CLK48EN;
++		break;
++	}
++	return type;
++}
++
++static void snd_rpi_hifiberry_dacplus_set_sclk(struct snd_soc_component *component,
++	int sample_rate)
++{
++	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
++
++	if (!IS_ERR(pcm512x->sclk)) {
++		int ctype;
++
++		ctype = snd_rpi_hifiberry_dacplus_clk_for_rate(sample_rate);
++		clk_set_rate(pcm512x->sclk, (ctype == HIFIBERRY_DACPRO_CLK44EN)
++			? CLK_44EN_RATE : CLK_48EN_RATE);
++		snd_rpi_hifiberry_dacplus_select_clk(component, ctype);
++	}
++}
++
++static int snd_rpi_hifiberry_dacplus_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *component = rtd->codec_dai->component;
++	struct pcm512x_priv *priv;
++
++	if (slave)
++		snd_rpi_hifiberry_is_dacpro = false;
++	else
++		snd_rpi_hifiberry_is_dacpro =
++				snd_rpi_hifiberry_dacplus_is_pro_card(component);
++
++	if (snd_rpi_hifiberry_is_dacpro) {
++		struct snd_soc_dai_link *dai = rtd->dai_link;
++
++		dai->name = "HiFiBerry DAC+ Pro";
++		dai->stream_name = "HiFiBerry DAC+ Pro HiFi";
++		dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
++			| SND_SOC_DAIFMT_CBM_CFM;
++
++		snd_soc_component_update_bits(component, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11);
++		snd_soc_component_update_bits(component, PCM512x_MASTER_MODE, 0x03, 0x03);
++		snd_soc_component_update_bits(component, PCM512x_MASTER_CLKDIV_2, 0x7f, 63);
++	} else {
++		priv = snd_soc_component_get_drvdata(component);
++		priv->sclk = ERR_PTR(-ENOENT);
++	}
++
++	snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++
++	if (digital_gain_0db_limit)
++	{
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
++	}
++
++	return 0;
++}
++
++static int snd_rpi_hifiberry_dacplus_update_rate_den(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = rtd->codec_dai->component;
++	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
++	struct snd_ratnum *rats_no_pll;
++	unsigned int num = 0, den = 0;
++	int err;
++
++	rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL);
++	if (!rats_no_pll)
++		return -ENOMEM;
++
++	rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64;
++	rats_no_pll->den_min = 1;
++	rats_no_pll->den_max = 128;
++	rats_no_pll->den_step = 1;
++
++	err = snd_interval_ratnum(hw_param_interval(params,
++		SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den);
++	if (err >= 0 && den) {
++		params->rate_num = num;
++		params->rate_den = den;
++	}
++
++	devm_kfree(rtd->dev, rats_no_pll);
++	return 0;
++}
++
++static int snd_rpi_hifiberry_dacplus_hw_params(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	int ret = 0;
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	int channels = params_channels(params);
++	int width = 32;
++
++	if (snd_rpi_hifiberry_is_dacpro) {
++		struct snd_soc_component *component = rtd->codec_dai->component;
++
++		width = snd_pcm_format_physical_width(params_format(params));
++
++		snd_rpi_hifiberry_dacplus_set_sclk(component,
++			params_rate(params));
++
++		ret = snd_rpi_hifiberry_dacplus_update_rate_den(
++			substream, params);
++	}
++
++	ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x03, 0x03,
++		channels, width);
++	if (ret)
++		return ret;
++	ret = snd_soc_dai_set_tdm_slot(rtd->codec_dai, 0x03, 0x03,
++		channels, width);
++	return ret;
++}
++
++static int snd_rpi_hifiberry_dacplus_startup(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = rtd->codec_dai->component;
++
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++	return 0;
++}
++
++static void snd_rpi_hifiberry_dacplus_shutdown(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = rtd->codec_dai->component;
++
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_hifiberry_dacplus_ops = {
++	.hw_params = snd_rpi_hifiberry_dacplus_hw_params,
++	.startup = snd_rpi_hifiberry_dacplus_startup,
++	.shutdown = snd_rpi_hifiberry_dacplus_shutdown,
++};
++
++static struct snd_soc_dai_link snd_rpi_hifiberry_dacplus_dai[] = {
++{
++	.name		= "HiFiBerry DAC+",
++	.stream_name	= "HiFiBerry DAC+ HiFi",
++	.cpu_dai_name	= "bcm2708-i2s.0",
++	.codec_dai_name	= "pcm512x-hifi",
++	.platform_name	= "bcm2708-i2s.0",
++	.codec_name	= "pcm512x.1-004d",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBS_CFS,
++	.ops		= &snd_rpi_hifiberry_dacplus_ops,
++	.init		= snd_rpi_hifiberry_dacplus_init,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_hifiberry_dacplus = {
++	.name         = "snd_rpi_hifiberry_dacplus",
++	.driver_name  = "HifiberryDacp",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_rpi_hifiberry_dacplus_dai,
++	.num_links    = ARRAY_SIZE(snd_rpi_hifiberry_dacplus_dai),
++};
++
++static int snd_rpi_hifiberry_dacplus_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_rpi_hifiberry_dacplus.dev = &pdev->dev;
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai;
++
++		dai = &snd_rpi_hifiberry_dacplus_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++			"i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpu_dai_name = NULL;
++			dai->cpu_of_node = i2s_node;
++			dai->platform_name = NULL;
++			dai->platform_of_node = i2s_node;
++		}
++
++		digital_gain_0db_limit = !of_property_read_bool(
++			pdev->dev.of_node, "hifiberry,24db_digital_gain");
++		slave = of_property_read_bool(pdev->dev.of_node,
++						"hifiberry-dacplus,slave");
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev,
++			&snd_rpi_hifiberry_dacplus);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev,
++			"snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_rpi_hifiberry_dacplus_of_match[] = {
++	{ .compatible = "hifiberry,hifiberry-dacplus", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplus_of_match);
++
++static struct platform_driver snd_rpi_hifiberry_dacplus_driver = {
++	.driver = {
++		.name   = "snd-rpi-hifiberry-dacplus",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_rpi_hifiberry_dacplus_of_match,
++	},
++	.probe          = snd_rpi_hifiberry_dacplus_probe,
++};
++
++module_platform_driver(snd_rpi_hifiberry_dacplus_driver);
++
++MODULE_AUTHOR("Daniel Matuschek <daniel@hifiberry.com>");
++MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+");
++MODULE_LICENSE("GPL v2");

target/linux/brcm2708/patches-4.19/950-0069-Added-driver-for-HiFiBerry-Amp-amplifier-add-on-boar.patch

@@ -0,0 +1,647 @@
+From 32df84e8c6f0f747c1182774fadbf4e9ef1794e2 Mon Sep 17 00:00:00 2001
+From: Daniel Matuschek <info@crazy-audio.com>
+Date: Mon, 4 Aug 2014 11:09:58 +0200
+Subject: [PATCH 069/703] Added driver for HiFiBerry Amp amplifier add-on board
+
+The driver contains a low-level hardware driver for the TAS5713 and the
+drivers for the Raspberry Pi I2S subsystem.
+
+TAS5713: return error if initialisation fails
+
+Existing TAS5713 driver logs errors during initialisation, but does not return
+an error code. Therefore even if initialisation fails, the driver will still be
+loaded, but won't work. This patch fixes this. I2C communication error will now
+reported correctly by a non-zero return code.
+
+HiFiBerry Amp: fix device-tree problems
+
+Some code to load the driver based on device-tree-overlays was missing. This is added by this patch.
+---
+ sound/soc/codecs/Kconfig   |   4 +
+ sound/soc/codecs/Makefile  |   2 +
+ sound/soc/codecs/tas5713.c | 366 +++++++++++++++++++++++++++++++++++++
+ sound/soc/codecs/tas5713.h | 210 +++++++++++++++++++++
+ 4 files changed, 582 insertions(+)
+ create mode 100644 sound/soc/codecs/tas5713.c
+ create mode 100644 sound/soc/codecs/tas5713.h
+
+--- a/sound/soc/codecs/Kconfig
++++ b/sound/soc/codecs/Kconfig
+@@ -167,6 +167,7 @@ config SND_SOC_ALL_CODECS
+ 	select SND_SOC_TFA9879 if I2C
+ 	select SND_SOC_TLV320AIC23_I2C if I2C
+ 	select SND_SOC_TLV320AIC23_SPI if SPI_MASTER
++	select SND_SOC_TAS5713 if I2C
+ 	select SND_SOC_TLV320AIC26 if SPI_MASTER
+ 	select SND_SOC_TLV320AIC31XX if I2C
+ 	select SND_SOC_TLV320AIC32X4_I2C if I2C
+@@ -997,6 +998,9 @@ config SND_SOC_TFA9879
+ 	tristate "NXP Semiconductors TFA9879 amplifier"
+ 	depends on I2C
+ 
++config SND_SOC_TAS5713
++	tristate
++
+ config SND_SOC_TLV320AIC23
+ 	tristate
+ 
+--- a/sound/soc/codecs/Makefile
++++ b/sound/soc/codecs/Makefile
+@@ -176,6 +176,7 @@ snd-soc-tas5720-objs := tas5720.o
+ snd-soc-tas6424-objs := tas6424.o
+ snd-soc-tda7419-objs := tda7419.o
+ snd-soc-tfa9879-objs := tfa9879.o
++snd-soc-tas5713-objs := tas5713.o
+ snd-soc-tlv320aic23-objs := tlv320aic23.o
+ snd-soc-tlv320aic23-i2c-objs := tlv320aic23-i2c.o
+ snd-soc-tlv320aic23-spi-objs := tlv320aic23-spi.o
+@@ -436,6 +437,7 @@ obj-$(CONFIG_SND_SOC_TAS5720)	+= snd-soc
+ obj-$(CONFIG_SND_SOC_TAS6424)	+= snd-soc-tas6424.o
+ obj-$(CONFIG_SND_SOC_TDA7419)	+= snd-soc-tda7419.o
+ obj-$(CONFIG_SND_SOC_TFA9879)	+= snd-soc-tfa9879.o
++obj-$(CONFIG_SND_SOC_TAS5713)	+= snd-soc-tas5713.o
+ obj-$(CONFIG_SND_SOC_TLV320AIC23)	+= snd-soc-tlv320aic23.o
+ obj-$(CONFIG_SND_SOC_TLV320AIC23_I2C)	+= snd-soc-tlv320aic23-i2c.o
+ obj-$(CONFIG_SND_SOC_TLV320AIC23_SPI)	+= snd-soc-tlv320aic23-spi.o
+--- /dev/null
++++ b/sound/soc/codecs/tas5713.c
+@@ -0,0 +1,366 @@
++/*
++ * ASoC Driver for TAS5713
++ *
++ * Author:	Sebastian Eickhoff <basti.eickhoff@googlemail.com>
++ *		Copyright 2014
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/init.h>
++#include <linux/delay.h>
++#include <linux/pm.h>
++#include <linux/i2c.h>
++#include <linux/of_device.h>
++#include <linux/spi/spi.h>
++#include <linux/regmap.h>
++#include <linux/regulator/consumer.h>
++#include <linux/slab.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/initval.h>
++#include <sound/tlv.h>
++
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/fs.h>
++#include <asm/uaccess.h>
++
++#include "tas5713.h"
++
++
++static struct i2c_client *i2c;
++
++struct tas5713_priv {
++	struct regmap *regmap;
++	int mclk_div;
++	struct snd_soc_component *component;
++};
++
++static struct tas5713_priv *priv_data;
++
++
++
++
++/*
++ *    _   _    ___   _      ___         _           _
++ *   /_\ | |  / __| /_\    / __|___ _ _| |_ _ _ ___| |___
++ *  / _ \| |__\__ \/ _ \  | (__/ _ \ ' \  _| '_/ _ \ (_-<
++ * /_/ \_\____|___/_/ \_\  \___\___/_||_\__|_| \___/_/__/
++ *
++ */
++
++static const DECLARE_TLV_DB_SCALE(tas5713_vol_tlv, -10000, 50, 1);
++
++
++static const struct snd_kcontrol_new tas5713_snd_controls[] = {
++	SOC_SINGLE_TLV  ("Master"    , TAS5713_VOL_MASTER, 0, 248, 1, tas5713_vol_tlv),
++	SOC_DOUBLE_R_TLV("Channels"  , TAS5713_VOL_CH1, TAS5713_VOL_CH2, 0, 248, 1, tas5713_vol_tlv)
++};
++
++
++
++
++/*
++ *  __  __         _    _            ___      _
++ * |  \/  |__ _ __| |_ (_)_ _  ___  |   \ _ _(_)_ _____ _ _
++ * | |\/| / _` / _| ' \| | ' \/ -_) | |) | '_| \ V / -_) '_|
++ * |_|  |_\__,_\__|_||_|_|_||_\___| |___/|_| |_|\_/\___|_|
++ *
++ */
++
++static int tas5713_hw_params(struct snd_pcm_substream *substream,
++			    struct snd_pcm_hw_params *params,
++			    struct snd_soc_dai *dai)
++{
++	u16 blen = 0x00;
++
++	struct snd_soc_component *component = dai->component;
++	priv_data->component = component;
++
++	switch (params_format(params)) {
++	case SNDRV_PCM_FORMAT_S16_LE:
++		blen = 0x03;
++		break;
++	case SNDRV_PCM_FORMAT_S20_3LE:
++		blen = 0x1;
++		break;
++	case SNDRV_PCM_FORMAT_S24_LE:
++		blen = 0x04;
++		break;
++	case SNDRV_PCM_FORMAT_S32_LE:
++		blen = 0x05;
++		break;
++	default:
++		dev_err(dai->dev, "Unsupported word length: %u\n",
++			params_format(params));
++		return -EINVAL;
++	}
++
++	// set word length
++	snd_soc_component_update_bits(component, TAS5713_SERIAL_DATA_INTERFACE, 0x7, blen);
++
++	return 0;
++}
++
++
++static int tas5713_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
++{
++	unsigned int val = 0;
++
++	struct tas5713_priv *tas5713;
++	struct snd_soc_component *component = dai->component;
++	tas5713 = snd_soc_component_get_drvdata(component);
++
++	if (mute) {
++		val = TAS5713_SOFT_MUTE_ALL;
++	}
++
++	return regmap_write(tas5713->regmap, TAS5713_SOFT_MUTE, val);
++}
++
++
++static const struct snd_soc_dai_ops tas5713_dai_ops = {
++	.hw_params 		= tas5713_hw_params,
++	.mute_stream	= tas5713_mute_stream,
++};
++
++
++static struct snd_soc_dai_driver tas5713_dai = {
++	.name		= "tas5713-hifi",
++	.playback 	= {
++		.stream_name	= "Playback",
++		.channels_min	= 2,
++		.channels_max	= 2,
++		.rates		    = SNDRV_PCM_RATE_8000_48000,
++		.formats	    = (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE ),
++	},
++	.ops        = &tas5713_dai_ops,
++};
++
++
++
++
++/*
++ *   ___         _          ___      _
++ *  / __|___  __| |___ __  |   \ _ _(_)_ _____ _ _
++ * | (__/ _ \/ _` / -_) _| | |) | '_| \ V / -_) '_|
++ *  \___\___/\__,_\___\__| |___/|_| |_|\_/\___|_|
++ *
++ */
++
++static void tas5713_remove(struct snd_soc_component *component)
++{
++	struct tas5713_priv *tas5713;
++
++	tas5713 = snd_soc_component_get_drvdata(component);
++}
++
++
++static int tas5713_probe(struct snd_soc_component *component)
++{
++	struct tas5713_priv *tas5713;
++	int i, ret;
++
++	i2c = container_of(component->dev, struct i2c_client, dev);
++
++	tas5713 = snd_soc_component_get_drvdata(component);
++
++	// Reset error
++	ret = snd_soc_component_write(component, TAS5713_ERROR_STATUS, 0x00);
++	if (ret < 0) return ret;
++
++	// Trim oscillator
++	ret = snd_soc_component_write(component, TAS5713_OSC_TRIM, 0x00);
++	if (ret < 0) return ret;
++	msleep(1000);
++
++	// Reset error
++	ret = snd_soc_component_write(component, TAS5713_ERROR_STATUS, 0x00);
++	if (ret < 0) return ret;
++
++	// Clock mode: 44/48kHz, MCLK=64xfs
++	ret = snd_soc_component_write(component, TAS5713_CLOCK_CTRL, 0x60);
++	if (ret < 0) return ret;
++
++	// I2S 24bit
++	ret = snd_soc_component_write(component, TAS5713_SERIAL_DATA_INTERFACE, 0x05);
++	if (ret < 0) return ret;
++
++	// Unmute
++	ret = snd_soc_component_write(component, TAS5713_SYSTEM_CTRL2, 0x00);
++	if (ret < 0) return ret;
++	ret = snd_soc_component_write(component, TAS5713_SOFT_MUTE, 0x00);
++	if (ret < 0) return ret;
++
++	// Set volume to 0db
++	ret = snd_soc_component_write(component, TAS5713_VOL_MASTER, 0x00);
++	if (ret < 0) return ret;
++
++	// Now start programming the default initialization sequence
++	for (i = 0; i < ARRAY_SIZE(tas5713_init_sequence); ++i) {
++		ret = i2c_master_send(i2c,
++				     tas5713_init_sequence[i].data,
++				     tas5713_init_sequence[i].size);
++		if (ret < 0) {
++			printk(KERN_INFO "TAS5713 CODEC PROBE: InitSeq returns: %d\n", ret);
++		}
++	}
++
++	// Unmute
++	ret = snd_soc_component_write(component, TAS5713_SYSTEM_CTRL2, 0x00);
++	if (ret < 0) return ret;
++
++	return 0;
++}
++
++
++static struct snd_soc_component_driver soc_codec_dev_tas5713 = {
++	.probe = tas5713_probe,
++	.remove = tas5713_remove,
++	.controls = tas5713_snd_controls,
++	.num_controls = ARRAY_SIZE(tas5713_snd_controls),
++};
++
++
++
++
++/*
++ *   ___ ___ ___   ___      _
++ *  |_ _|_  ) __| |   \ _ _(_)_ _____ _ _
++ *   | | / / (__  | |) | '_| \ V / -_) '_|
++ *  |___/___\___| |___/|_| |_|\_/\___|_|
++ *
++ */
++
++static const struct reg_default tas5713_reg_defaults[] = {
++	{ 0x07 ,0x80 },     // R7  - VOL_MASTER    - -40dB
++	{ 0x08 ,  30 },     // R8  - VOL_CH1	   -   0dB
++	{ 0x09 ,  30 },     // R9  - VOL_CH2       -   0dB
++	{ 0x0A ,0x80 },     // R10 - VOL_HEADPHONE - -40dB
++};
++
++
++static bool tas5713_reg_volatile(struct device *dev, unsigned int reg)
++{
++	switch (reg) {
++		case TAS5713_DEVICE_ID:
++		case TAS5713_ERROR_STATUS:
++			return true;
++	default:
++			return false;
++	}
++}
++
++
++static const struct of_device_id tas5713_of_match[] = {
++	{ .compatible = "ti,tas5713", },
++	{ }
++};
++MODULE_DEVICE_TABLE(of, tas5713_of_match);
++
++
++static struct regmap_config tas5713_regmap_config = {
++	.reg_bits = 8,
++	.val_bits = 8,
++
++	.max_register = TAS5713_MAX_REGISTER,
++	.volatile_reg = tas5713_reg_volatile,
++
++	.cache_type = REGCACHE_RBTREE,
++	.reg_defaults = tas5713_reg_defaults,
++	.num_reg_defaults = ARRAY_SIZE(tas5713_reg_defaults),
++};
++
++
++static int tas5713_i2c_probe(struct i2c_client *i2c,
++			    const struct i2c_device_id *id)
++{
++	int ret;
++
++	priv_data = devm_kzalloc(&i2c->dev, sizeof *priv_data, GFP_KERNEL);
++	if (!priv_data)
++		return -ENOMEM;
++
++	priv_data->regmap = devm_regmap_init_i2c(i2c, &tas5713_regmap_config);
++	if (IS_ERR(priv_data->regmap)) {
++		ret = PTR_ERR(priv_data->regmap);
++		return ret;
++	}
++
++	i2c_set_clientdata(i2c, priv_data);
++
++	ret = snd_soc_register_component(&i2c->dev,
++				     &soc_codec_dev_tas5713, &tas5713_dai, 1);
++
++	return ret;
++}
++
++
++static int tas5713_i2c_remove(struct i2c_client *i2c)
++{
++	snd_soc_unregister_component(&i2c->dev);
++	i2c_set_clientdata(i2c, NULL);
++
++	kfree(priv_data);
++
++	return 0;
++}
++
++
++static const struct i2c_device_id tas5713_i2c_id[] = {
++	{ "tas5713", 0 },
++	{ }
++};
++
++MODULE_DEVICE_TABLE(i2c, tas5713_i2c_id);
++
++
++static struct i2c_driver tas5713_i2c_driver = {
++	.driver = {
++		.name = "tas5713",
++		.owner = THIS_MODULE,
++		.of_match_table = tas5713_of_match,
++	},
++	.probe = tas5713_i2c_probe,
++	.remove = tas5713_i2c_remove,
++	.id_table = tas5713_i2c_id
++};
++
++
++static int __init tas5713_modinit(void)
++{
++	int ret = 0;
++
++	ret = i2c_add_driver(&tas5713_i2c_driver);
++	if (ret) {
++		printk(KERN_ERR "Failed to register tas5713 I2C driver: %d\n",
++		       ret);
++	}
++
++	return ret;
++}
++module_init(tas5713_modinit);
++
++
++static void __exit tas5713_exit(void)
++{
++	i2c_del_driver(&tas5713_i2c_driver);
++}
++module_exit(tas5713_exit);
++
++
++MODULE_AUTHOR("Sebastian Eickhoff <basti.eickhoff@googlemail.com>");
++MODULE_DESCRIPTION("ASoC driver for TAS5713");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/codecs/tas5713.h
+@@ -0,0 +1,210 @@
++/*
++ * ASoC Driver for TAS5713
++ *
++ * Author:      Sebastian Eickhoff <basti.eickhoff@googlemail.com>
++ *              Copyright 2014
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#ifndef _TAS5713_H
++#define _TAS5713_H
++
++
++// TAS5713 I2C-bus register addresses
++
++#define TAS5713_CLOCK_CTRL              0x00
++#define TAS5713_DEVICE_ID               0x01
++#define TAS5713_ERROR_STATUS            0x02
++#define TAS5713_SYSTEM_CTRL1            0x03
++#define TAS5713_SERIAL_DATA_INTERFACE   0x04
++#define TAS5713_SYSTEM_CTRL2            0x05
++#define TAS5713_SOFT_MUTE               0x06
++#define TAS5713_VOL_MASTER              0x07
++#define TAS5713_VOL_CH1                 0x08
++#define TAS5713_VOL_CH2                 0x09
++#define TAS5713_VOL_HEADPHONE           0x0A
++#define TAS5713_VOL_CONFIG              0x0E
++#define TAS5713_MODULATION_LIMIT        0x10
++#define TAS5713_IC_DLY_CH1              0x11
++#define TAS5713_IC_DLY_CH2              0x12
++#define TAS5713_IC_DLY_CH3              0x13
++#define TAS5713_IC_DLY_CH4              0x14
++
++#define TAS5713_START_STOP_PERIOD       0x1A
++#define TAS5713_OSC_TRIM                0x1B
++#define TAS5713_BKND_ERR                0x1C
++
++#define TAS5713_INPUT_MUX               0x20
++#define TAS5713_SRC_SELECT_CH4          0x21
++#define TAS5713_PWM_MUX                 0x25
++
++#define TAS5713_CH1_BQ0                 0x29
++#define TAS5713_CH1_BQ1                 0x2A
++#define TAS5713_CH1_BQ2                 0x2B
++#define TAS5713_CH1_BQ3                 0x2C
++#define TAS5713_CH1_BQ4                 0x2D
++#define TAS5713_CH1_BQ5                 0x2E
++#define TAS5713_CH1_BQ6                 0x2F
++#define TAS5713_CH1_BQ7                 0x58
++#define TAS5713_CH1_BQ8                 0x59
++
++#define TAS5713_CH2_BQ0                 0x30
++#define TAS5713_CH2_BQ1                 0x31
++#define TAS5713_CH2_BQ2                 0x32
++#define TAS5713_CH2_BQ3                 0x33
++#define TAS5713_CH2_BQ4                 0x34
++#define TAS5713_CH2_BQ5                 0x35
++#define TAS5713_CH2_BQ6                 0x36
++#define TAS5713_CH2_BQ7                 0x5C
++#define TAS5713_CH2_BQ8                 0x5D
++
++#define TAS5713_CH4_BQ0                 0x5A
++#define TAS5713_CH4_BQ1                 0x5B
++#define TAS5713_CH3_BQ0                 0x5E
++#define TAS5713_CH3_BQ1                 0x5F
++
++#define TAS5713_DRC1_SOFTENING_FILTER_ALPHA_OMEGA       0x3B
++#define TAS5713_DRC1_ATTACK_RELEASE_RATE                0x3C
++#define TAS5713_DRC2_SOFTENING_FILTER_ALPHA_OMEGA       0x3E
++#define TAS5713_DRC2_ATTACK_RELEASE_RATE                0x3F
++#define TAS5713_DRC1_ATTACK_RELEASE_THRES               0x40
++#define TAS5713_DRC2_ATTACK_RELEASE_THRES               0x43
++#define TAS5713_DRC_CTRL                                0x46
++
++#define TAS5713_BANK_SW_CTRL            0x50
++#define TAS5713_CH1_OUTPUT_MIXER        0x51
++#define TAS5713_CH2_OUTPUT_MIXER        0x52
++#define TAS5713_CH1_INPUT_MIXER         0x53
++#define TAS5713_CH2_INPUT_MIXER         0x54
++#define TAS5713_OUTPUT_POST_SCALE       0x56
++#define TAS5713_OUTPUT_PRESCALE         0x57
++
++#define TAS5713_IDF_POST_SCALE          0x62
++
++#define TAS5713_CH1_INLINE_MIXER        0x70
++#define TAS5713_CH1_INLINE_DRC_EN_MIXER 0x71
++#define TAS5713_CH1_R_CHANNEL_MIXER     0x72
++#define TAS5713_CH1_L_CHANNEL_MIXER     0x73
++#define TAS5713_CH2_INLINE_MIXER        0x74
++#define TAS5713_CH2_INLINE_DRC_EN_MIXER 0x75
++#define TAS5713_CH2_L_CHANNEL_MIXER     0x76
++#define TAS5713_CH2_R_CHANNEL_MIXER     0x77
++
++#define TAS5713_UPDATE_DEV_ADDR_KEY     0xF8
++#define TAS5713_UPDATE_DEV_ADDR_REG     0xF9
++
++#define TAS5713_REGISTER_COUNT          0x46
++#define TAS5713_MAX_REGISTER            0xF9
++
++
++// Bitmasks for registers
++#define TAS5713_SOFT_MUTE_ALL           0x07
++
++
++
++struct tas5713_init_command {
++        const int size;
++        const char *const data;
++};
++
++static const struct tas5713_init_command tas5713_init_sequence[] = {
++
++        // Trim oscillator
++    { .size = 2,  .data = "\x1B\x00" },
++    // System control register 1 (0x03): block DC
++    { .size = 2,  .data = "\x03\x80" },
++    // Mute everything
++    { .size = 2,  .data = "\x05\x40" },
++    // Modulation limit register (0x10): 97.7%
++    { .size = 2,  .data = "\x10\x02" },
++    // Interchannel delay registers
++    // (0x11, 0x12, 0x13, and 0x14): BD mode
++    { .size = 2,  .data = "\x11\xB8" },
++    { .size = 2,  .data = "\x12\x60" },
++    { .size = 2,  .data = "\x13\xA0" },
++    { .size = 2,  .data = "\x14\x48" },
++    // PWM shutdown group register (0x19): no shutdown
++    { .size = 2,  .data = "\x19\x00" },
++    // Input multiplexer register (0x20): BD mode
++    { .size = 2,  .data = "\x20\x00\x89\x77\x72" },
++    // PWM output mux register (0x25)
++    // Channel 1 --> OUTA, channel 1 neg --> OUTB
++    // Channel 2 --> OUTC, channel 2 neg --> OUTD
++    { .size = 5,  .data = "\x25\x01\x02\x13\x45" },
++    // DRC control (0x46): DRC off
++    { .size = 5,  .data = "\x46\x00\x00\x00\x00" },
++    // BKND_ERR register (0x1C): 299ms reset period
++    { .size = 2,  .data = "\x1C\x07" },
++    // Mute channel 3
++    { .size = 2,  .data = "\x0A\xFF" },
++    // Volume configuration register (0x0E): volume slew 512 steps
++    { .size = 2,  .data = "\x0E\x90" },
++    // Clock control register (0x00): 44/48kHz, MCLK=64xfs
++    { .size = 2,  .data = "\x00\x60" },
++    // Bank switch and eq control (0x50): no bank switching
++    { .size = 5,  .data = "\x50\x00\x00\x00\x00" },
++    // Volume registers (0x07, 0x08, 0x09, 0x0A)
++    { .size = 2,  .data = "\x07\x20" },
++    { .size = 2,  .data = "\x08\x30" },
++    { .size = 2,  .data = "\x09\x30" },
++    { .size = 2,  .data = "\x0A\xFF" },
++    // 0x72, 0x73, 0x76, 0x77 input mixer:
++    // no intermix between channels
++    { .size = 5,  .data = "\x72\x00\x00\x00\x00" },
++    { .size = 5,  .data = "\x73\x00\x80\x00\x00" },
++    { .size = 5,  .data = "\x76\x00\x00\x00\x00" },
++    { .size = 5,  .data = "\x77\x00\x80\x00\x00" },
++    // 0x70, 0x71, 0x74, 0x75 inline DRC mixer:
++    // no inline DRC inmix
++    { .size = 5,  .data = "\x70\x00\x80\x00\x00" },
++    { .size = 5,  .data = "\x71\x00\x00\x00\x00" },
++    { .size = 5,  .data = "\x74\x00\x80\x00\x00" },
++    { .size = 5,  .data = "\x75\x00\x00\x00\x00" },
++    // 0x56, 0x57 Output scale
++    { .size = 5,  .data = "\x56\x00\x80\x00\x00" },
++    { .size = 5,  .data = "\x57\x00\x02\x00\x00" },
++    // 0x3B, 0x3c
++    { .size = 9,  .data = "\x3B\x00\x08\x00\x00\x00\x78\x00\x00" },
++    { .size = 9,  .data = "\x3C\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
++    { .size = 9,  .data = "\x3E\x00\x08\x00\x00\x00\x78\x00\x00" },
++    { .size = 9,  .data = "\x3F\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
++    { .size = 9,  .data = "\x40\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
++    { .size = 9,  .data = "\x43\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
++    // 0x51, 0x52: output mixer
++    { .size = 9,  .data = "\x51\x00\x80\x00\x00\x00\x00\x00\x00" },
++    { .size = 9,  .data = "\x52\x00\x80\x00\x00\x00\x00\x00\x00" },
++    // PEQ defaults
++    { .size = 21,  .data = "\x29\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x2A\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x2B\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x2C\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x2D\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x2E\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x2F\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x30\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x31\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x32\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x33\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x34\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x35\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x36\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x58\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x59\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x5C\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x5D\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x5E\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x5F\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x5A\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x5B\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++};
++
++
++#endif  /* _TAS5713_H */

target/linux/brcm2708/patches-4.19/950-0070-Add-driver-for-rpi-proto.patch

@@ -0,0 +1,168 @@
+From 0a8842f908f015bd889e3c0cee5115db1c451990 Mon Sep 17 00:00:00 2001
+From: Waldemar Brodkorb <wbrodkorb@conet.de>
+Date: Wed, 25 Mar 2015 09:26:17 +0100
+Subject: [PATCH 070/703] Add driver for rpi-proto
+
+Forward port of 3.10.x driver from https://github.com/koalo
+We are using a custom board and would like to use rpi 3.18.x
+kernel. Patch works fine for our embedded system.
+
+URL to the audio chip:
+http://www.mikroe.com/add-on-boards/audio-voice/audio-codec-proto/
+
+Playback tested with devicetree enabled.
+
+Signed-off-by: Waldemar Brodkorb <wbrodkorb@conet.de>
+---
+ sound/soc/bcm/rpi-proto.c | 145 ++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 145 insertions(+)
+ create mode 100644 sound/soc/bcm/rpi-proto.c
+
+--- /dev/null
++++ b/sound/soc/bcm/rpi-proto.c
+@@ -0,0 +1,145 @@
++/*
++ * ASoC driver for PROTO AudioCODEC (with a WM8731)
++ * connected to a Raspberry Pi
++ *
++ * Author:      Florian Meier, <koalo@koalo.de>
++ *	      Copyright 2013
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#include "../codecs/wm8731.h"
++
++static const unsigned int wm8731_rates_12288000[] = {
++	8000, 32000, 48000, 96000,
++};
++
++static struct snd_pcm_hw_constraint_list wm8731_constraints_12288000 = {
++	.list = wm8731_rates_12288000,
++	.count = ARRAY_SIZE(wm8731_rates_12288000),
++};
++
++static int snd_rpi_proto_startup(struct snd_pcm_substream *substream)
++{
++	/* Setup constraints, because there is a 12.288 MHz XTAL on the board */
++	snd_pcm_hw_constraint_list(substream->runtime, 0,
++				SNDRV_PCM_HW_PARAM_RATE,
++				&wm8731_constraints_12288000);
++	return 0;
++}
++
++static int snd_rpi_proto_hw_params(struct snd_pcm_substream *substream,
++				       struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *codec_dai = rtd->codec_dai;
++	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
++	int sysclk = 12288000; /* This is fixed on this board */
++
++	/* Set proto bclk */
++	int ret = snd_soc_dai_set_bclk_ratio(cpu_dai,32*2);
++	if (ret < 0){
++		dev_err(rtd->card->dev,
++				"Failed to set BCLK ratio %d\n", ret);
++		return ret;
++	}
++
++	/* Set proto sysclk */
++	ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
++			sysclk, SND_SOC_CLOCK_IN);
++	if (ret < 0) {
++		dev_err(rtd->card->dev,
++				"Failed to set WM8731 SYSCLK: %d\n", ret);
++		return ret;
++	}
++
++	return 0;
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_proto_ops = {
++	.startup = snd_rpi_proto_startup,
++	.hw_params = snd_rpi_proto_hw_params,
++};
++
++static struct snd_soc_dai_link snd_rpi_proto_dai[] = {
++{
++	.name		= "WM8731",
++	.stream_name	= "WM8731 HiFi",
++	.cpu_dai_name	= "bcm2708-i2s.0",
++	.codec_dai_name	= "wm8731-hifi",
++	.platform_name	= "bcm2708-i2s.0",
++	.codec_name	= "wm8731.1-001a",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S
++				| SND_SOC_DAIFMT_NB_NF
++				| SND_SOC_DAIFMT_CBM_CFM,
++	.ops		= &snd_rpi_proto_ops,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_proto = {
++	.name		= "snd_rpi_proto",
++	.owner		= THIS_MODULE,
++	.dai_link	= snd_rpi_proto_dai,
++	.num_links	= ARRAY_SIZE(snd_rpi_proto_dai),
++};
++
++static int snd_rpi_proto_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_rpi_proto.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai = &snd_rpi_proto_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++				            "i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpu_dai_name = NULL;
++			dai->cpu_of_node = i2s_node;
++			dai->platform_name = NULL;
++			dai->platform_of_node = i2s_node;
++		}
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_proto);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev,
++				"snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_rpi_proto_of_match[] = {
++	{ .compatible = "rpi,rpi-proto", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_proto_of_match);
++
++static struct platform_driver snd_rpi_proto_driver = {
++	.driver = {
++		.name   = "snd-rpi-proto",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_rpi_proto_of_match,
++	},
++	.probe	  = snd_rpi_proto_probe,
++};
++
++module_platform_driver(snd_rpi_proto_driver);
++
++MODULE_AUTHOR("Florian Meier");
++MODULE_DESCRIPTION("ASoC Driver for Raspberry Pi connected to PROTO board (WM8731)");
++MODULE_LICENSE("GPL");

target/linux/brcm2708/patches-4.19/950-0071-Add-Support-for-JustBoom-Audio-boards.patch

@@ -0,0 +1,173 @@
+From 71cd216db9c7c05f05c8dd7c7afdfb24f718be74 Mon Sep 17 00:00:00 2001
+From: Aaron Shaw <shawaj@gmail.com>
+Date: Thu, 7 Apr 2016 21:26:21 +0100
+Subject: [PATCH 071/703] Add Support for JustBoom Audio boards
+
+justboom-dac: Adjust for ALSA API change
+
+As of 4.4, snd_soc_limit_volume now takes a struct snd_soc_card *
+rather than a struct snd_soc_codec *.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+ASoC: justboom-dac: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Also remove hw_params as it's no longer needed.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ sound/soc/bcm/justboom-dac.c | 145 +++++++++++++++++++++++++++++++++++
+ 1 file changed, 145 insertions(+)
+ create mode 100644 sound/soc/bcm/justboom-dac.c
+
+--- /dev/null
++++ b/sound/soc/bcm/justboom-dac.c
+@@ -0,0 +1,145 @@
++/*
++ * ASoC Driver for JustBoom DAC Raspberry Pi HAT Sound Card
++ *
++ * Author:	Milan Neskovic
++ *		Copyright 2016
++ *		based on code by Daniel Matuschek <info@crazy-audio.com>
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#include "../codecs/pcm512x.h"
++
++static bool digital_gain_0db_limit = true;
++
++static int snd_rpi_justboom_dac_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *component = rtd->codec_dai->component;
++	snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0xf, 0x02);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08,0x08);
++
++	if (digital_gain_0db_limit)
++	{
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
++	}
++
++	return 0;
++}
++
++static int snd_rpi_justboom_dac_startup(struct snd_pcm_substream *substream) {
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = rtd->codec_dai->component;
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08,0x08);
++	return 0;
++}
++
++static void snd_rpi_justboom_dac_shutdown(struct snd_pcm_substream *substream) {
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = rtd->codec_dai->component;
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08,0x00);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_justboom_dac_ops = {
++	.startup = snd_rpi_justboom_dac_startup,
++	.shutdown = snd_rpi_justboom_dac_shutdown,
++};
++
++static struct snd_soc_dai_link snd_rpi_justboom_dac_dai[] = {
++{
++	.name		= "JustBoom DAC",
++	.stream_name	= "JustBoom DAC HiFi",
++	.cpu_dai_name	= "bcm2708-i2s.0",
++	.codec_dai_name	= "pcm512x-hifi",
++	.platform_name	= "bcm2708-i2s.0",
++	.codec_name	= "pcm512x.1-004d",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBS_CFS,
++	.ops		= &snd_rpi_justboom_dac_ops,
++	.init		= snd_rpi_justboom_dac_init,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_justboom_dac = {
++	.name         = "snd_rpi_justboom_dac",
++	.driver_name  = "JustBoomDac",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_rpi_justboom_dac_dai,
++	.num_links    = ARRAY_SIZE(snd_rpi_justboom_dac_dai),
++};
++
++static int snd_rpi_justboom_dac_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_rpi_justboom_dac.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++	    struct device_node *i2s_node;
++	    struct snd_soc_dai_link *dai = &snd_rpi_justboom_dac_dai[0];
++	    i2s_node = of_parse_phandle(pdev->dev.of_node,
++					"i2s-controller", 0);
++
++	    if (i2s_node) {
++			dai->cpu_dai_name = NULL;
++			dai->cpu_of_node = i2s_node;
++			dai->platform_name = NULL;
++			dai->platform_of_node = i2s_node;
++	    }
++
++	    digital_gain_0db_limit = !of_property_read_bool(
++			pdev->dev.of_node, "justboom,24db_digital_gain");
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_justboom_dac);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev,
++			"snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_rpi_justboom_dac_of_match[] = {
++	{ .compatible = "justboom,justboom-dac", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_justboom_dac_of_match);
++
++static struct platform_driver snd_rpi_justboom_dac_driver = {
++	.driver = {
++		.name   = "snd-rpi-justboom-dac",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_rpi_justboom_dac_of_match,
++	},
++	.probe          = snd_rpi_justboom_dac_probe,
++};
++
++module_platform_driver(snd_rpi_justboom_dac_driver);
++
++MODULE_AUTHOR("Milan Neskovic <info@justboom.co>");
++MODULE_DESCRIPTION("ASoC Driver for JustBoom PI DAC HAT Sound Card");
++MODULE_LICENSE("GPL v2");

target/linux/brcm2708/patches-4.19/950-0072-New-AudioInjector.net-Pi-soundcard-with-low-jitter-a.patch

@@ -0,0 +1,207 @@
+From 075e259919f36828473a97a231cdafcec073b63b Mon Sep 17 00:00:00 2001
+From: Matt Flax <flatmax@flatmax.org>
+Date: Mon, 16 May 2016 21:36:31 +1000
+Subject: [PATCH 072/703] New AudioInjector.net Pi soundcard with low jitter
+ audio in and out.
+
+Contains the sound/soc/bcm ALSA machine driver and necessary alterations to the Kconfig and Makefile.
+Adds the dts overlay and updates the Makefile and README.
+Updates the relevant defconfig files to enable building for the Raspberry Pi.
+Thanks to Phil Elwell (pelwell) for the review, simple-card concepts and discussion. Thanks to Clive Messer for overlay naming suggestions.
+
+Added support for headphones, microphone and bclk_ratio settings.
+
+This patch adds headphone and microphone capability to the Audio Injector sound card. The patch also sets the bit clock ratio for use in the bcm2835-i2s driver. The bcm2835-i2s can't handle an 8 kHz sample rate when the bit clock is at 12 MHz because its register is only 10 bits wide which can't represent the ch2 offset of 1508. For that reason, the rate constraint is added.
+---
+ sound/soc/bcm/audioinjector-pi-soundcard.c | 185 +++++++++++++++++++++
+ 1 file changed, 185 insertions(+)
+ create mode 100644 sound/soc/bcm/audioinjector-pi-soundcard.c
+
+--- /dev/null
++++ b/sound/soc/bcm/audioinjector-pi-soundcard.c
+@@ -0,0 +1,185 @@
++/*
++ * ASoC Driver for AudioInjector Pi add on soundcard
++ *
++ *  Created on: 13-May-2016
++ *      Author: flatmax@flatmax.org
++ *              based on code by  Cliff Cai <Cliff.Cai@analog.com> for the ssm2602 machine blackfin.
++ *              with help from Lars-Peter Clausen for simplifying the original code to use the dai_fmt field.
++ *		i2s_node code taken from the other sound/soc/bcm machine drivers.
++ *
++ * Copyright (C) 2016 Flatmax Pty. Ltd.
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/types.h>
++
++#include <sound/core.h>
++#include <sound/soc.h>
++#include <sound/pcm_params.h>
++#include <sound/control.h>
++
++#include "../codecs/wm8731.h"
++
++static const unsigned int bcm2835_rates_12000000[] = {
++	8000, 16000, 32000, 44100, 48000, 96000, 88200,
++};
++
++static struct snd_pcm_hw_constraint_list bcm2835_constraints_12000000 = {
++	.list = bcm2835_rates_12000000,
++	.count = ARRAY_SIZE(bcm2835_rates_12000000),
++};
++
++static int snd_audioinjector_pi_soundcard_startup(struct snd_pcm_substream *substream)
++{
++	/* Setup constraints, because there is a 12 MHz XTAL on the board */
++	snd_pcm_hw_constraint_list(substream->runtime, 0,
++				SNDRV_PCM_HW_PARAM_RATE,
++				&bcm2835_constraints_12000000);
++	return 0;
++}
++
++static int snd_audioinjector_pi_soundcard_hw_params(struct snd_pcm_substream *substream,
++				       struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
++
++	switch (params_rate(params)){
++		case 8000:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 1);
++		case 16000:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 750);
++		case 32000:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 375);
++		case 44100:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 272);
++		case 48000:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 250);
++		case 88200:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 136);
++		case 96000:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 125);
++		default:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 125);
++	}
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_audioinjector_pi_soundcard_ops = {
++	.startup = snd_audioinjector_pi_soundcard_startup,
++	.hw_params = snd_audioinjector_pi_soundcard_hw_params,
++};
++
++static int audioinjector_pi_soundcard_dai_init(struct snd_soc_pcm_runtime *rtd)
++{
++	return snd_soc_dai_set_sysclk(rtd->codec_dai, WM8731_SYSCLK_XTAL, 12000000, SND_SOC_CLOCK_IN);
++}
++
++static struct snd_soc_dai_link audioinjector_pi_soundcard_dai[] = {
++	{
++		.name = "AudioInjector audio",
++		.stream_name = "AudioInjector audio",
++		.cpu_dai_name	= "bcm2708-i2s.0",
++		.codec_dai_name = "wm8731-hifi",
++		.platform_name	= "bcm2835-i2s.0",
++		.codec_name = "wm8731.1-001a",
++		.ops = &snd_audioinjector_pi_soundcard_ops,
++		.init = audioinjector_pi_soundcard_dai_init,
++		.dai_fmt = SND_SOC_DAIFMT_CBM_CFM|SND_SOC_DAIFMT_I2S|SND_SOC_DAIFMT_NB_NF,
++	},
++};
++
++static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
++	SND_SOC_DAPM_HP("Headphone Jack", NULL),
++	SND_SOC_DAPM_SPK("Ext Spk", NULL),
++	SND_SOC_DAPM_LINE("Line In Jacks", NULL),
++	SND_SOC_DAPM_MIC("Microphone", NULL),
++};
++
++static const struct snd_soc_dapm_route audioinjector_audio_map[] = {
++	/* headphone connected to LHPOUT, RHPOUT */
++	{"Headphone Jack", NULL, "LHPOUT"},
++	{"Headphone Jack", NULL, "RHPOUT"},
++
++	/* speaker connected to LOUT, ROUT */
++	{"Ext Spk", NULL, "ROUT"},
++	{"Ext Spk", NULL, "LOUT"},
++
++	/* line inputs */
++	{"Line In Jacks", NULL, "Line Input"},
++
++	/* mic is connected to Mic Jack, with WM8731 Mic Bias */
++	{"Microphone", NULL, "Mic Bias"},
++};
++
++static struct snd_soc_card snd_soc_audioinjector = {
++	.name = "audioinjector-pi-soundcard",
++	.dai_link = audioinjector_pi_soundcard_dai,
++	.num_links = ARRAY_SIZE(audioinjector_pi_soundcard_dai),
++
++	.dapm_widgets = wm8731_dapm_widgets,
++	.num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets),
++	.dapm_routes = audioinjector_audio_map,
++	.num_dapm_routes = ARRAY_SIZE(audioinjector_audio_map),
++};
++
++static int audioinjector_pi_soundcard_probe(struct platform_device *pdev)
++{
++	struct snd_soc_card *card = &snd_soc_audioinjector;
++	int ret;
++	
++	card->dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct snd_soc_dai_link *dai = &audioinjector_pi_soundcard_dai[0];
++		struct device_node *i2s_node = of_parse_phandle(pdev->dev.of_node,
++								"i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpu_dai_name = NULL;
++			dai->cpu_of_node = i2s_node;
++			dai->platform_name = NULL;
++			dai->platform_of_node = i2s_node;
++		} else
++			if (!dai->cpu_of_node) {
++				dev_err(&pdev->dev, "Property 'i2s-controller' missing or invalid\n");
++				return -EINVAL;
++			}
++	}
++
++	if ((ret = devm_snd_soc_register_card(&pdev->dev, card))) {
++		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
++	}
++	return ret;
++}
++
++static const struct of_device_id audioinjector_pi_soundcard_of_match[] = {
++	{ .compatible = "ai,audioinjector-pi-soundcard", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, audioinjector_pi_soundcard_of_match);
++
++static struct platform_driver audioinjector_pi_soundcard_driver = {
++       .driver         = {
++		.name   = "audioinjector-stereo",
++		.owner  = THIS_MODULE,
++		.of_match_table = audioinjector_pi_soundcard_of_match,
++       },
++       .probe          = audioinjector_pi_soundcard_probe,
++};
++
++module_platform_driver(audioinjector_pi_soundcard_driver);
++MODULE_AUTHOR("Matt Flax <flatmax@flatmax.org>");
++MODULE_DESCRIPTION("AudioInjector.net Pi Soundcard");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:audioinjector-pi-soundcard");
++

target/linux/brcm2708/patches-4.19/950-0073-New-driver-for-RRA-DigiDAC1-soundcard-using-WM8741-W.patch

@@ -0,0 +1,430 @@
+From 3f5b5702b2245c639439607ab4e64d654edaa864 Mon Sep 17 00:00:00 2001
+From: escalator2015 <jmtasende@gmail.com>
+Date: Tue, 24 May 2016 16:20:09 +0100
+Subject: [PATCH 073/703] New driver for RRA DigiDAC1 soundcard using WM8741 +
+ WM8804
+
+---
+ sound/soc/bcm/digidac1-soundcard.c | 416 +++++++++++++++++++++++++++++
+ 1 file changed, 416 insertions(+)
+ create mode 100644 sound/soc/bcm/digidac1-soundcard.c
+
+--- /dev/null
++++ b/sound/soc/bcm/digidac1-soundcard.c
+@@ -0,0 +1,416 @@
++/*
++ * ASoC Driver for RRA DigiDAC1
++ * Copyright 2016
++ * Author: José M. Tasende <vintage@redrocksaudio.es>
++ * based on the HifiBerry DAC driver by Florian Meier <florian.meier@koalo.de>
++ * and the Wolfson card driver by Nikesh Oswal, <Nikesh.Oswal@wolfsonmicro.com>
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/i2c.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++#include <sound/soc-dapm.h>
++#include <sound/tlv.h>
++#include <linux/regulator/consumer.h>
++
++#include "../codecs/wm8804.h"
++#include "../codecs/wm8741.h"
++
++#define WM8741_NUM_SUPPLIES 2
++
++/* codec private data */
++struct wm8741_priv {
++	struct wm8741_platform_data pdata;
++	struct regmap *regmap;
++	struct regulator_bulk_data supplies[WM8741_NUM_SUPPLIES];
++	unsigned int sysclk;
++	const struct snd_pcm_hw_constraint_list *sysclk_constraints;
++};
++
++static int samplerate = 44100;
++
++/* New Alsa Controls not exposed by original wm8741 codec driver	*/
++/* in actual driver the att. adjustment is wrong because		*/
++/* this DAC has a coarse attenuation register with 4dB steps		*/
++/* and a fine level register with 0.125dB steps				*/
++/* each register has 32 steps so combining both we have	1024 steps	*/
++/* of 0.125 dB.								*/
++/* The original level controls from driver are removed at startup	*/
++/* and replaced by the corrected ones.					*/
++/* The same wm8741 driver can be used for wm8741 and wm8742 devices	*/
++
++static const DECLARE_TLV_DB_SCALE(dac_tlv_fine, 0, 13, 0);
++static const DECLARE_TLV_DB_SCALE(dac_tlv_coarse, -12700, 400, 1);
++static const char *w8741_dither[4] = {"Off", "RPDF", "TPDF", "HPDF"};
++static const char *w8741_filter[5] = {
++		"Type 1", "Type 2", "Type 3", "Type 4", "Type 5"};
++static const char *w8741_switch[2] = {"Off", "On"};
++static const struct soc_enum w8741_enum[] = {
++SOC_ENUM_SINGLE(WM8741_MODE_CONTROL_2, 0, 4, w8741_dither),/* dithering type */
++SOC_ENUM_SINGLE(WM8741_FILTER_CONTROL, 0, 5, w8741_filter),/* filter type */
++SOC_ENUM_SINGLE(WM8741_FORMAT_CONTROL, 6, 2, w8741_switch),/* phase invert */
++SOC_ENUM_SINGLE(WM8741_VOLUME_CONTROL, 0, 2, w8741_switch),/* volume ramp */
++SOC_ENUM_SINGLE(WM8741_VOLUME_CONTROL, 3, 2, w8741_switch),/* soft mute */
++};
++
++static const struct snd_kcontrol_new w8741_snd_controls_stereo[] = {
++SOC_DOUBLE_R_TLV("DAC Fine Playback Volume", WM8741_DACLLSB_ATTENUATION,
++		WM8741_DACRLSB_ATTENUATION, 0, 31, 1, dac_tlv_fine),
++SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8741_DACLMSB_ATTENUATION,
++		WM8741_DACRMSB_ATTENUATION, 0, 31, 1, dac_tlv_coarse),
++SOC_ENUM("DAC Dither", w8741_enum[0]),
++SOC_ENUM("DAC Digital Filter", w8741_enum[1]),
++SOC_ENUM("DAC Phase Invert", w8741_enum[2]),
++SOC_ENUM("DAC Volume Ramp", w8741_enum[3]),
++SOC_ENUM("DAC Soft Mute", w8741_enum[4]),
++};
++
++static const struct snd_kcontrol_new w8741_snd_controls_mono_left[] = {
++SOC_SINGLE_TLV("DAC Fine Playback Volume", WM8741_DACLLSB_ATTENUATION,
++		0, 31, 0, dac_tlv_fine),
++SOC_SINGLE_TLV("Digital Playback Volume", WM8741_DACLMSB_ATTENUATION,
++		0, 31, 1, dac_tlv_coarse),
++SOC_ENUM("DAC Dither", w8741_enum[0]),
++SOC_ENUM("DAC Digital Filter", w8741_enum[1]),
++SOC_ENUM("DAC Phase Invert", w8741_enum[2]),
++SOC_ENUM("DAC Volume Ramp", w8741_enum[3]),
++SOC_ENUM("DAC Soft Mute", w8741_enum[4]),
++};
++
++static const struct snd_kcontrol_new w8741_snd_controls_mono_right[] = {
++SOC_SINGLE_TLV("DAC Fine Playback Volume", WM8741_DACRLSB_ATTENUATION,
++	0, 31, 0, dac_tlv_fine),
++SOC_SINGLE_TLV("Digital Playback Volume", WM8741_DACRMSB_ATTENUATION,
++	0, 31, 1, dac_tlv_coarse),
++SOC_ENUM("DAC Dither", w8741_enum[0]),
++SOC_ENUM("DAC Digital Filter", w8741_enum[1]),
++SOC_ENUM("DAC Phase Invert", w8741_enum[2]),
++SOC_ENUM("DAC Volume Ramp", w8741_enum[3]),
++SOC_ENUM("DAC Soft Mute", w8741_enum[4]),
++};
++
++static int w8741_add_controls(struct snd_soc_component *component)
++{
++	struct wm8741_priv *wm8741 = snd_soc_component_get_drvdata(component);
++
++	switch (wm8741->pdata.diff_mode) {
++	case WM8741_DIFF_MODE_STEREO:
++	case WM8741_DIFF_MODE_STEREO_REVERSED:
++		snd_soc_add_component_controls(component,
++				w8741_snd_controls_stereo,
++				ARRAY_SIZE(w8741_snd_controls_stereo));
++		break;
++	case WM8741_DIFF_MODE_MONO_LEFT:
++		snd_soc_add_component_controls(component,
++				w8741_snd_controls_mono_left,
++				ARRAY_SIZE(w8741_snd_controls_mono_left));
++		break;
++	case WM8741_DIFF_MODE_MONO_RIGHT:
++		snd_soc_add_component_controls(component,
++				w8741_snd_controls_mono_right,
++				ARRAY_SIZE(w8741_snd_controls_mono_right));
++		break;
++	default:
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++static int digidac1_soundcard_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *component = rtd->codec_dai->component;
++	struct snd_soc_card *card = rtd->card;
++	struct snd_soc_pcm_runtime *wm8741_rtd;
++	struct snd_soc_component *wm8741_component;
++	struct snd_card *sound_card = card->snd_card;
++	struct snd_kcontrol *kctl;
++	int ret;
++
++	wm8741_rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
++	if (!wm8741_rtd) {
++		dev_warn(card->dev, "digidac1_soundcard_init: couldn't get wm8741 rtd\n");
++		return -EFAULT;
++	}
++	wm8741_component = wm8741_rtd->codec_dai->component;
++	ret = w8741_add_controls(wm8741_component);
++	if (ret < 0)
++		dev_warn(card->dev, "Failed to add new wm8741 controls: %d\n",
++		ret);
++
++	/* enable TX output */
++	snd_soc_component_update_bits(component, WM8804_PWRDN, 0x4, 0x0);
++
++	kctl = snd_soc_card_get_kcontrol(card,
++		"Playback Volume");
++	if (kctl) {
++		kctl->vd[0].access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
++		snd_ctl_remove(sound_card, kctl);
++		}
++	kctl = snd_soc_card_get_kcontrol(card,
++		"Fine Playback Volume");
++	if (kctl) {
++		kctl->vd[0].access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
++		snd_ctl_remove(sound_card, kctl);
++		}
++	return 0;
++}
++
++static int digidac1_soundcard_startup(struct snd_pcm_substream *substream)
++{
++	/* turn on wm8804 digital output */
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = rtd->codec_dai->component;
++	struct snd_soc_card *card = rtd->card;
++	struct snd_soc_pcm_runtime *wm8741_rtd;
++	struct snd_soc_component *wm8741_component;
++
++	snd_soc_component_update_bits(component, WM8804_PWRDN, 0x3c, 0x00);
++	wm8741_rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
++	if (!wm8741_rtd) {
++		dev_warn(card->dev, "digidac1_soundcard_startup: couldn't get WM8741 rtd\n");
++		return -EFAULT;
++	}
++	wm8741_component = wm8741_rtd->codec_dai->component;
++
++	/* latch wm8741 level */
++	snd_soc_component_update_bits(wm8741_component, WM8741_DACLLSB_ATTENUATION,
++		WM8741_UPDATELL, WM8741_UPDATELL);
++	snd_soc_component_update_bits(wm8741_component, WM8741_DACLMSB_ATTENUATION,
++		WM8741_UPDATELM, WM8741_UPDATELM);
++	snd_soc_component_update_bits(wm8741_component, WM8741_DACRLSB_ATTENUATION,
++		WM8741_UPDATERL, WM8741_UPDATERL);
++	snd_soc_component_update_bits(wm8741_component, WM8741_DACRMSB_ATTENUATION,
++		WM8741_UPDATERM, WM8741_UPDATERM);
++
++	return 0;
++}
++
++static void digidac1_soundcard_shutdown(struct snd_pcm_substream *substream)
++{
++	/* turn off wm8804 digital output */
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = rtd->codec_dai->component;
++
++	snd_soc_component_update_bits(component, WM8804_PWRDN, 0x3c, 0x3c);
++}
++
++static int digidac1_soundcard_hw_params(struct snd_pcm_substream *substream,
++				       struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *codec_dai = rtd->codec_dai;
++	struct snd_soc_component *component = rtd->codec_dai->component;
++	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
++	struct snd_soc_card *card = rtd->card;
++	struct snd_soc_pcm_runtime *wm8741_rtd;
++	struct snd_soc_component *wm8741_component;
++
++	int sysclk = 27000000;
++	long mclk_freq = 0;
++	int mclk_div = 1;
++	int sampling_freq = 1;
++	int ret;
++
++	wm8741_rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
++	if (!wm8741_rtd) {
++		dev_warn(card->dev, "digidac1_soundcard_hw_params: couldn't get WM8741 rtd\n");
++		return -EFAULT;
++	}
++	wm8741_component = wm8741_rtd->codec_dai->component;
++	samplerate = params_rate(params);
++
++	if (samplerate <= 96000) {
++		mclk_freq = samplerate*256;
++		mclk_div = WM8804_MCLKDIV_256FS;
++	} else {
++		mclk_freq = samplerate*128;
++		mclk_div = WM8804_MCLKDIV_128FS;
++		}
++
++	switch (samplerate) {
++	case 32000:
++		sampling_freq = 0x03;
++		break;
++	case 44100:
++		sampling_freq = 0x00;
++		break;
++	case 48000:
++		sampling_freq = 0x02;
++		break;
++	case 88200:
++		sampling_freq = 0x08;
++		break;
++	case 96000:
++		sampling_freq = 0x0a;
++		break;
++	case 176400:
++		sampling_freq = 0x0c;
++		break;
++	case 192000:
++		sampling_freq = 0x0e;
++		break;
++	default:
++		dev_err(card->dev,
++		"Failed to set WM8804 SYSCLK, unsupported samplerate %d\n",
++		samplerate);
++	}
++
++	snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, mclk_div);
++	snd_soc_dai_set_pll(codec_dai, 0, 0, sysclk, mclk_freq);
++
++	ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL,
++		sysclk, SND_SOC_CLOCK_OUT);
++	if (ret < 0) {
++		dev_err(card->dev,
++		"Failed to set WM8804 SYSCLK: %d\n", ret);
++		return ret;
++	}
++	/* Enable wm8804 TX output */
++	snd_soc_component_update_bits(component, WM8804_PWRDN, 0x4, 0x0);
++
++	/* wm8804 Power on */
++	snd_soc_component_update_bits(component, WM8804_PWRDN, 0x9, 0);
++
++	/* wm8804 set sampling frequency status bits */
++	snd_soc_component_update_bits(component, WM8804_SPDTX4, 0x0f, sampling_freq);
++
++	/* Now update wm8741 registers for the correct oversampling */
++	if (samplerate <= 48000)
++		snd_soc_component_update_bits(wm8741_component, WM8741_MODE_CONTROL_1,
++		 WM8741_OSR_MASK, 0x00);
++	else if (samplerate <= 96000)
++		snd_soc_component_update_bits(wm8741_component, WM8741_MODE_CONTROL_1,
++		 WM8741_OSR_MASK, 0x20);
++	else
++		snd_soc_component_update_bits(wm8741_component, WM8741_MODE_CONTROL_1,
++		 WM8741_OSR_MASK, 0x40);
++
++	/* wm8741 bit size */
++	switch (params_width(params)) {
++	case 16:
++		snd_soc_component_update_bits(wm8741_component, WM8741_FORMAT_CONTROL,
++		 WM8741_IWL_MASK, 0x00);
++		break;
++	case 20:
++		snd_soc_component_update_bits(wm8741_component, WM8741_FORMAT_CONTROL,
++		 WM8741_IWL_MASK, 0x01);
++		break;
++	case 24:
++		snd_soc_component_update_bits(wm8741_component, WM8741_FORMAT_CONTROL,
++		 WM8741_IWL_MASK, 0x02);
++		break;
++	case 32:
++		snd_soc_component_update_bits(wm8741_component, WM8741_FORMAT_CONTROL,
++		 WM8741_IWL_MASK, 0x03);
++		break;
++	default:
++		dev_dbg(card->dev, "wm8741_hw_params:    Unsupported bit size param = %d",
++			params_width(params));
++		return -EINVAL;
++	}
++
++	return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
++}
++/* machine stream operations */
++static struct snd_soc_ops digidac1_soundcard_ops = {
++	.hw_params	= digidac1_soundcard_hw_params,
++	.startup	= digidac1_soundcard_startup,
++	.shutdown	= digidac1_soundcard_shutdown,
++};
++
++static struct snd_soc_dai_link digidac1_soundcard_dai[] = {
++	{
++	.name		= "RRA DigiDAC1",
++	.stream_name	= "RRA DigiDAC1 HiFi",
++	.cpu_dai_name	= "bcm2708-i2s.0",
++	.codec_dai_name	= "wm8804-spdif",
++	.platform_name	= "bcm2708-i2s.0",
++	.codec_name	= "wm8804.1-003b",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBM_CFM,
++	.ops		= &digidac1_soundcard_ops,
++	.init		= digidac1_soundcard_init,
++	},
++	{
++	.name		= "RRA DigiDAC11",
++	.stream_name	= "RRA DigiDAC11 HiFi",
++	.cpu_dai_name	= "wm8804-spdif",
++	.codec_dai_name	= "wm8741",
++	.codec_name	= "wm8741.1-001a",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S
++			| SND_SOC_DAIFMT_NB_NF
++			| SND_SOC_DAIFMT_CBS_CFS,
++	},
++};
++
++/* audio machine driver */
++static struct snd_soc_card digidac1_soundcard = {
++	.name		= "digidac1-soundcard",
++	.owner		= THIS_MODULE,
++	.dai_link	= digidac1_soundcard_dai,
++	.num_links	= ARRAY_SIZE(digidac1_soundcard_dai),
++};
++
++static int digidac1_soundcard_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	digidac1_soundcard.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai = &digidac1_soundcard_dai[0];
++
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++					"i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpu_dai_name = NULL;
++			dai->cpu_of_node = i2s_node;
++			dai->platform_name = NULL;
++			dai->platform_of_node = i2s_node;
++		}
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &digidac1_soundcard);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
++			ret);
++
++	return ret;
++}
++
++static const struct of_device_id digidac1_soundcard_of_match[] = {
++	{ .compatible = "rra,digidac1-soundcard", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, digidac1_soundcard_of_match);
++
++static struct platform_driver digidac1_soundcard_driver = {
++	.driver = {
++			.name		= "digidac1-audio",
++			.owner		= THIS_MODULE,
++			.of_match_table	= digidac1_soundcard_of_match,
++	},
++	.probe		= digidac1_soundcard_probe,
++};
++
++module_platform_driver(digidac1_soundcard_driver);
++
++MODULE_AUTHOR("José M. Tasende <vintage@redrocksaudio.es>");
++MODULE_DESCRIPTION("ASoC Driver for RRA DigiDAC1");
++MODULE_LICENSE("GPL v2");

target/linux/brcm2708/patches-4.19/950-0074-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch

@@ -0,0 +1,131 @@
+From 63f29d95488d5bbebc704f904e3f4d12ba90fe42 Mon Sep 17 00:00:00 2001
+From: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
+Date: Sat, 2 Jul 2016 16:26:19 +0100
+Subject: [PATCH 074/703] Add support for Dion Audio LOCO DAC-AMP HAT
+
+Using dedicated machine driver and pcm5102a codec driver.
+
+Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
+---
+ sound/soc/bcm/dionaudio_loco.c | 115 +++++++++++++++++++++++++++++++++
+ 1 file changed, 115 insertions(+)
+ create mode 100644 sound/soc/bcm/dionaudio_loco.c
+
+--- /dev/null
++++ b/sound/soc/bcm/dionaudio_loco.c
+@@ -0,0 +1,115 @@
++/*
++ * ASoC Driver for Dion Audio LOCO DAC-AMP
++ *
++ * Author:      Miquel Blauw <info@dionaudio.nl>
++ *              Copyright 2016
++ *
++ * Based on the software of the RPi-DAC writen by Florian Meier
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++static int snd_rpi_dionaudio_loco_hw_params(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
++
++	unsigned int sample_bits =
++		snd_pcm_format_physical_width(params_format(params));
++
++	return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_dionaudio_loco_ops = {
++	.hw_params = snd_rpi_dionaudio_loco_hw_params,
++};
++
++static struct snd_soc_dai_link snd_rpi_dionaudio_loco_dai[] = {
++{
++	.name		= "DionAudio LOCO",
++	.stream_name	= "DionAudio LOCO DAC-AMP",
++	.cpu_dai_name	= "bcm2708-i2s.0",
++	.codec_dai_name	= "pcm5102a-hifi",
++	.platform_name	= "bcm2708-i2s.0",
++	.codec_name	= "pcm5102a-codec",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S |
++			  SND_SOC_DAIFMT_NB_NF |
++			  SND_SOC_DAIFMT_CBS_CFS,
++	.ops		= &snd_rpi_dionaudio_loco_ops,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_dionaudio_loco = {
++	.name		= "snd_rpi_dionaudio_loco",
++	.dai_link	= snd_rpi_dionaudio_loco_dai,
++	.num_links	= ARRAY_SIZE(snd_rpi_dionaudio_loco_dai),
++};
++
++static int snd_rpi_dionaudio_loco_probe(struct platform_device *pdev)
++{
++	struct device_node *np;
++	int ret = 0;
++
++	snd_rpi_dionaudio_loco.dev = &pdev->dev;
++
++	np = pdev->dev.of_node;
++	if (np) {
++		struct snd_soc_dai_link *dai = &snd_rpi_dionaudio_loco_dai[0];
++		struct device_node *i2s_np;
++
++		i2s_np = of_parse_phandle(np, "i2s-controller", 0);
++		if (i2s_np) {
++			dai->cpu_dai_name = NULL;
++			dai->cpu_of_node = i2s_np;
++			dai->platform_name = NULL;
++			dai->platform_of_node = i2s_np;
++		}
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_dionaudio_loco);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
++			ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_rpi_dionaudio_loco_of_match[] = {
++	{ .compatible = "dionaudio,loco-pcm5242-tpa3118", },
++	{ /* sentinel */ },
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_dionaudio_loco_of_match);
++
++static struct platform_driver snd_rpi_dionaudio_loco_driver = {
++	.driver = {
++		.name		= "snd-dionaudio-loco",
++		.owner		= THIS_MODULE,
++		.of_match_table	= snd_rpi_dionaudio_loco_of_match,
++	},
++	.probe  = snd_rpi_dionaudio_loco_probe,
++};
++
++module_platform_driver(snd_rpi_dionaudio_loco_driver);
++
++MODULE_AUTHOR("Miquel Blauw <info@dionaudio.nl>");
++MODULE_DESCRIPTION("ASoC Driver for DionAudio LOCO");
++MODULE_LICENSE("GPL v2");

target/linux/brcm2708/patches-4.19/950-0075-Allo-Piano-DAC-boards-Initial-2-channel-stereo-suppo.patch

@@ -0,0 +1,157 @@
+From befd64b81a740cba0ad23a6732dd56b2e67dda84 Mon Sep 17 00:00:00 2001
+From: Clive Messer <clive.m.messer@gmail.com>
+Date: Mon, 19 Sep 2016 14:01:04 +0100
+Subject: [PATCH 075/703] Allo Piano DAC boards: Initial 2 channel (stereo)
+ support (#1645)
+
+Add initial 2 channel (stereo) support for Allo Piano DAC (2.0/2.1) boards,
+using allo-piano-dac-pcm512x-audio overlay and allo-piano-dac ALSA ASoC
+machine driver.
+
+NB. The initial support is 2 channel (stereo) ONLY!
+(The Piano DAC 2.1 will only support 2 channel (stereo) left/right output,
+ pending an update to the upstream pcm512x codec driver, which will have
+ to be submitted via upstream. With the initial downstream support,
+ provided by this patch, the Piano DAC 2.1 subwoofer outputs will
+ not function.)
+
+Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
+Signed-off-by: Clive Messer <clive.messer@digitaldreamtime.co.uk>
+Tested-by: Clive Messer <clive.messer@digitaldreamtime.co.uk>
+
+ASoC: allo-piano-dac: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Also remove hw_params and ops as they are no longer needed.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ sound/soc/bcm/allo-piano-dac.c | 120 +++++++++++++++++++++++++++++++++
+ 1 file changed, 120 insertions(+)
+ create mode 100644 sound/soc/bcm/allo-piano-dac.c
+
+--- /dev/null
++++ b/sound/soc/bcm/allo-piano-dac.c
+@@ -0,0 +1,120 @@
++/*
++ * ALSA ASoC Machine Driver for Allo Piano DAC
++ *
++ * Author:	Baswaraj K <jaikumar@cem-solutions.net>
++ *		Copyright 2016
++ *		based on code by Daniel Matuschek <info@crazy-audio.com>
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++
++static bool digital_gain_0db_limit = true;
++
++static int snd_allo_piano_dac_init(struct snd_soc_pcm_runtime *rtd)
++{
++	if (digital_gain_0db_limit) {
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume",
++					   207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n",
++				 ret);
++	}
++
++	return 0;
++}
++
++static struct snd_soc_dai_link snd_allo_piano_dac_dai[] = {
++{
++	.name		= "Piano DAC",
++	.stream_name	= "Piano DAC HiFi",
++	.cpu_dai_name	= "bcm2708-i2s.0",
++	.codec_dai_name	= "pcm512x-hifi",
++	.platform_name	= "bcm2708-i2s.0",
++	.codec_name	= "pcm512x.1-004c",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S |
++			  SND_SOC_DAIFMT_NB_NF |
++			  SND_SOC_DAIFMT_CBS_CFS,
++	.init		= snd_allo_piano_dac_init,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_allo_piano_dac = {
++	.name         = "PianoDAC",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_allo_piano_dac_dai,
++	.num_links    = ARRAY_SIZE(snd_allo_piano_dac_dai),
++};
++
++static int snd_allo_piano_dac_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_allo_piano_dac.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai;
++
++		dai = &snd_allo_piano_dac_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++					    "i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpu_dai_name = NULL;
++			dai->cpu_of_node = i2s_node;
++			dai->platform_name = NULL;
++			dai->platform_of_node = i2s_node;
++		}
++
++		digital_gain_0db_limit = !of_property_read_bool(
++			pdev->dev.of_node, "allo,24db_digital_gain");
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &snd_allo_piano_dac);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev,
++			"snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_allo_piano_dac_of_match[] = {
++	{ .compatible = "allo,piano-dac", },
++	{ /* sentinel */ },
++};
++MODULE_DEVICE_TABLE(of, snd_allo_piano_dac_of_match);
++
++static struct platform_driver snd_allo_piano_dac_driver = {
++	.driver = {
++		.name   = "snd-allo-piano-dac",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_allo_piano_dac_of_match,
++	},
++	.probe          = snd_allo_piano_dac_probe,
++};
++
++module_platform_driver(snd_allo_piano_dac_driver);
++
++MODULE_AUTHOR("Baswaraj K <jaikumar@cem-solutions.net>");
++MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Piano DAC");
++MODULE_LICENSE("GPL v2");

target/linux/brcm2708/patches-4.19/950-0077-Add-support-for-Allo-Boss-DAC-add-on-board-for-Raspb.patch

@@ -0,0 +1,667 @@
+From f9b56b66913621c3ecba0a5379381fd1e33e1914 Mon Sep 17 00:00:00 2001
+From: BabuSubashChandar <babuenir@gmail.com>
+Date: Tue, 28 Mar 2017 20:04:42 +0530
+Subject: [PATCH 077/703] Add support for Allo Boss DAC add-on board for
+ Raspberry Pi. (#1924)
+
+Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
+Reviewed-by: Deepak <deepak@zilogic.com>
+Reviewed-by: BabuSubashChandar <babusubashchandar@zilogic.com>
+
+Add support for new clock rate and mute gpios.
+
+Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
+Reviewed-by: Deepak <deepak@zilogic.com>
+Reviewed-by: BabuSubashChandar <babusubashchandar@zilogic.com>
+
+ASoC: allo-boss-dac: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: allo-boss-dac: transmit S24_LE with 64 BCLK cycles
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ drivers/clk/Makefile          |   1 +
+ drivers/clk/clk-allo-dac.c    | 161 ++++++++++++
+ sound/soc/bcm/allo-boss-dac.c | 456 ++++++++++++++++++++++++++++++++++
+ 3 files changed, 618 insertions(+)
+ create mode 100644 drivers/clk/clk-allo-dac.c
+ create mode 100644 sound/soc/bcm/allo-boss-dac.c
+
+--- a/drivers/clk/Makefile
++++ b/drivers/clk/Makefile
+@@ -18,6 +18,7 @@ endif
+ 
+ # hardware specific clock types
+ # please keep this section sorted lexicographically by file path name
++obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC)	+= clk-allo-dac.o
+ obj-$(CONFIG_MACH_ASM9260)		+= clk-asm9260.o
+ obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN)	+= clk-axi-clkgen.o
+ obj-$(CONFIG_ARCH_AXXIA)		+= clk-axm5516.o
+--- /dev/null
++++ b/drivers/clk/clk-allo-dac.c
+@@ -0,0 +1,161 @@
++/*
++ * Clock Driver for Allo DAC
++ *
++ * Author:	Baswaraj K <jaikumar@cem-solutions.net>
++ *		Copyright 2016
++ *		based on code by Stuart MacLean
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/clk-provider.h>
++#include <linux/clkdev.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/slab.h>
++#include <linux/platform_device.h>
++
++/* Clock rate of CLK44EN attached to GPIO6 pin */
++#define CLK_44EN_RATE 45158400UL
++/* Clock rate of CLK48EN attached to GPIO3 pin */
++#define CLK_48EN_RATE 49152000UL
++
++/**
++ * struct allo_dac_clk - Common struct to the Allo DAC
++ * @hw: clk_hw for the common clk framework
++ * @mode: 0 => CLK44EN, 1 => CLK48EN
++ */
++struct clk_allo_hw {
++	struct clk_hw hw;
++	uint8_t mode;
++};
++
++#define to_allo_clk(_hw) container_of(_hw, struct clk_allo_hw, hw)
++
++static const struct of_device_id clk_allo_dac_dt_ids[] = {
++	{ .compatible = "allo,dac-clk",},
++	{ }
++};
++MODULE_DEVICE_TABLE(of, clk_allo_dac_dt_ids);
++
++static unsigned long clk_allo_dac_recalc_rate(struct clk_hw *hw,
++	unsigned long parent_rate)
++{
++	return (to_allo_clk(hw)->mode == 0) ? CLK_44EN_RATE :
++		CLK_48EN_RATE;
++}
++
++static long clk_allo_dac_round_rate(struct clk_hw *hw,
++	unsigned long rate, unsigned long *parent_rate)
++{
++	long actual_rate;
++
++	if (rate <= CLK_44EN_RATE) {
++		actual_rate = (long)CLK_44EN_RATE;
++	} else if (rate >= CLK_48EN_RATE) {
++		actual_rate = (long)CLK_48EN_RATE;
++	} else {
++		long diff44Rate = (long)(rate - CLK_44EN_RATE);
++		long diff48Rate = (long)(CLK_48EN_RATE - rate);
++
++		if (diff44Rate < diff48Rate)
++			actual_rate = (long)CLK_44EN_RATE;
++		else
++			actual_rate = (long)CLK_48EN_RATE;
++	}
++	return actual_rate;
++}
++
++
++static int clk_allo_dac_set_rate(struct clk_hw *hw,
++	unsigned long rate, unsigned long parent_rate)
++{
++	unsigned long actual_rate;
++	struct clk_allo_hw *clk = to_allo_clk(hw);
++
++	actual_rate = (unsigned long)clk_allo_dac_round_rate(hw, rate,
++		&parent_rate);
++	clk->mode = (actual_rate == CLK_44EN_RATE) ? 0 : 1;
++	return 0;
++}
++
++
++const struct clk_ops clk_allo_dac_rate_ops = {
++	.recalc_rate = clk_allo_dac_recalc_rate,
++	.round_rate = clk_allo_dac_round_rate,
++	.set_rate = clk_allo_dac_set_rate,
++};
++
++static int clk_allo_dac_probe(struct platform_device *pdev)
++{
++	int ret;
++	struct clk_allo_hw *proclk;
++	struct clk *clk;
++	struct device *dev;
++	struct clk_init_data init;
++
++	dev = &pdev->dev;
++
++	proclk = kzalloc(sizeof(struct clk_allo_hw), GFP_KERNEL);
++	if (!proclk)
++		return -ENOMEM;
++
++	init.name = "clk-allo-dac";
++	init.ops = &clk_allo_dac_rate_ops;
++	init.flags = CLK_IS_BASIC;
++	init.parent_names = NULL;
++	init.num_parents = 0;
++
++	proclk->mode = 0;
++	proclk->hw.init = &init;
++
++	clk = devm_clk_register(dev, &proclk->hw);
++	if (!IS_ERR(clk)) {
++		ret = of_clk_add_provider(dev->of_node, of_clk_src_simple_get,
++			clk);
++	} else {
++		dev_err(dev, "Fail to register clock driver\n");
++		kfree(proclk);
++		ret = PTR_ERR(clk);
++	}
++	return ret;
++}
++
++static int clk_allo_dac_remove(struct platform_device *pdev)
++{
++	of_clk_del_provider(pdev->dev.of_node);
++	return 0;
++}
++
++static struct platform_driver clk_allo_dac_driver = {
++	.probe = clk_allo_dac_probe,
++	.remove = clk_allo_dac_remove,
++	.driver = {
++		.name = "clk-allo-dac",
++		.of_match_table = clk_allo_dac_dt_ids,
++	},
++};
++
++static int __init clk_allo_dac_init(void)
++{
++	return platform_driver_register(&clk_allo_dac_driver);
++}
++core_initcall(clk_allo_dac_init);
++
++static void __exit clk_allo_dac_exit(void)
++{
++	platform_driver_unregister(&clk_allo_dac_driver);
++}
++module_exit(clk_allo_dac_exit);
++
++MODULE_DESCRIPTION("Allo DAC clock driver");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:clk-allo-dac");
+--- /dev/null
++++ b/sound/soc/bcm/allo-boss-dac.c
+@@ -0,0 +1,456 @@
++/*
++ * ALSA ASoC Machine Driver for Allo Boss DAC
++ *
++ * Author:	Baswaraj K <jaikumar@cem-solutions.net>
++ *		Copyright 2017
++ *		based on code by Daniel Matuschek,
++ *				 Stuart MacLean <stuart@hifiberry.com>
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/gpio/consumer.h>
++#include <linux/platform_device.h>
++#include <linux/clk.h>
++#include <linux/delay.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include "../codecs/pcm512x.h"
++
++#define ALLO_BOSS_NOCLOCK 0
++#define ALLO_BOSS_CLK44EN 1
++#define ALLO_BOSS_CLK48EN 2
++
++struct pcm512x_priv {
++	struct regmap *regmap;
++	struct clk *sclk;
++};
++
++static struct gpio_desc *mute_gpio;
++
++/* Clock rate of CLK44EN attached to GPIO6 pin */
++#define CLK_44EN_RATE 45158400UL
++/* Clock rate of CLK48EN attached to GPIO3 pin */
++#define CLK_48EN_RATE 49152000UL
++
++static bool slave;
++static bool snd_soc_allo_boss_master;
++static bool digital_gain_0db_limit = true;
++
++static void snd_allo_boss_select_clk(struct snd_soc_component *component,
++	int clk_id)
++{
++	switch (clk_id) {
++	case ALLO_BOSS_NOCLOCK:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x00);
++		break;
++	case ALLO_BOSS_CLK44EN:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x20);
++		break;
++	case ALLO_BOSS_CLK48EN:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
++		break;
++	}
++}
++
++static void snd_allo_boss_clk_gpio(struct snd_soc_component *component)
++{
++	snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x24, 0x24);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02);
++}
++
++static bool snd_allo_boss_is_sclk(struct snd_soc_component *component)
++{
++	unsigned int sck;
++
++	snd_soc_component_read(component, PCM512x_RATE_DET_4, &sck);
++	return (!(sck & 0x40));
++}
++
++static bool snd_allo_boss_is_sclk_sleep(
++	struct snd_soc_component *component)
++{
++	msleep(2);
++	return snd_allo_boss_is_sclk(component);
++}
++
++static bool snd_allo_boss_is_master_card(struct snd_soc_component *component)
++{
++	bool isClk44EN, isClk48En, isNoClk;
++
++	snd_allo_boss_clk_gpio(component);
++
++	snd_allo_boss_select_clk(component, ALLO_BOSS_CLK44EN);
++	isClk44EN = snd_allo_boss_is_sclk_sleep(component);
++
++	snd_allo_boss_select_clk(component, ALLO_BOSS_NOCLOCK);
++	isNoClk = snd_allo_boss_is_sclk_sleep(component);
++
++	snd_allo_boss_select_clk(component, ALLO_BOSS_CLK48EN);
++	isClk48En = snd_allo_boss_is_sclk_sleep(component);
++
++	return (isClk44EN && isClk48En && !isNoClk);
++}
++
++static int snd_allo_boss_clk_for_rate(int sample_rate)
++{
++	int type;
++
++	switch (sample_rate) {
++	case 11025:
++	case 22050:
++	case 44100:
++	case 88200:
++	case 176400:
++	case 352800:
++		type = ALLO_BOSS_CLK44EN;
++		break;
++	default:
++		type = ALLO_BOSS_CLK48EN;
++		break;
++	}
++	return type;
++}
++
++static void snd_allo_boss_set_sclk(struct snd_soc_component *component,
++	int sample_rate)
++{
++	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
++
++	if (!IS_ERR(pcm512x->sclk)) {
++		int ctype;
++
++		ctype =	snd_allo_boss_clk_for_rate(sample_rate);
++		clk_set_rate(pcm512x->sclk, (ctype == ALLO_BOSS_CLK44EN)
++				? CLK_44EN_RATE : CLK_48EN_RATE);
++		snd_allo_boss_select_clk(component, ctype);
++	}
++}
++
++static int snd_allo_boss_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *component = rtd->codec_dai->component;
++	struct pcm512x_priv *priv = snd_soc_component_get_drvdata(component);
++
++	if (slave)
++		snd_soc_allo_boss_master = false;
++	else
++		snd_soc_allo_boss_master =
++			snd_allo_boss_is_master_card(component);
++
++	if (snd_soc_allo_boss_master) {
++		struct snd_soc_dai_link *dai = rtd->dai_link;
++
++		dai->name = "BossDAC";
++		dai->stream_name = "Boss DAC HiFi [Master]";
++		dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
++			| SND_SOC_DAIFMT_CBM_CFM;
++
++		snd_soc_component_update_bits(component, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11);
++		snd_soc_component_update_bits(component, PCM512x_MASTER_MODE, 0x03, 0x03);
++		snd_soc_component_update_bits(component, PCM512x_MASTER_CLKDIV_2, 0x7f, 63);
++		/*
++		* Default sclk to CLK_48EN_RATE, otherwise codec
++		*  pcm512x_dai_startup_master method could call
++		*  snd_pcm_hw_constraint_ratnums using CLK_44EN/64
++		*  which will mask 384k sample rate.
++		*/
++		if (!IS_ERR(priv->sclk))
++			clk_set_rate(priv->sclk, CLK_48EN_RATE);
++	} else {
++		priv->sclk = ERR_PTR(-ENOENT);
++	}
++
++	snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++
++	if (digital_gain_0db_limit) {
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume",
++				207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n",
++					ret);
++	}
++
++	return 0;
++}
++
++static int snd_allo_boss_update_rate_den(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = rtd->codec_dai->component;
++	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
++	struct snd_ratnum *rats_no_pll;
++	unsigned int num = 0, den = 0;
++	int err;
++
++	rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL);
++	if (!rats_no_pll)
++		return -ENOMEM;
++
++	rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64;
++	rats_no_pll->den_min = 1;
++	rats_no_pll->den_max = 128;
++	rats_no_pll->den_step = 1;
++
++	err = snd_interval_ratnum(hw_param_interval(params,
++		SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den);
++	if (err >= 0 && den) {
++		params->rate_num = num;
++		params->rate_den = den;
++	}
++
++	devm_kfree(rtd->dev, rats_no_pll);
++	return 0;
++}
++
++static void snd_allo_boss_gpio_mute(struct snd_soc_card *card)
++{
++	if (mute_gpio)
++		gpiod_set_value_cansleep(mute_gpio, 1);
++}
++
++static void snd_allo_boss_gpio_unmute(struct snd_soc_card *card)
++{
++	if (mute_gpio)
++		gpiod_set_value_cansleep(mute_gpio, 0);
++}
++
++static int snd_allo_boss_set_bias_level(struct snd_soc_card *card,
++	struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level)
++{
++	struct snd_soc_pcm_runtime *rtd;
++	struct snd_soc_dai *codec_dai;
++
++	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
++	codec_dai = rtd->codec_dai;
++
++	if (dapm->dev != codec_dai->dev)
++		return 0;
++
++	switch (level) {
++	case SND_SOC_BIAS_PREPARE:
++		if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
++			break;
++		/* UNMUTE DAC */
++		snd_allo_boss_gpio_unmute(card);
++		break;
++
++	case SND_SOC_BIAS_STANDBY:
++		if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
++			break;
++		/* MUTE DAC */
++		snd_allo_boss_gpio_mute(card);
++		break;
++
++	default:
++		break;
++	}
++
++	return 0;
++}
++
++static int snd_allo_boss_hw_params(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	int ret = 0;
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	int channels = params_channels(params);
++	int width = snd_pcm_format_physical_width(params_format(params));
++
++	if (snd_soc_allo_boss_master) {
++		struct snd_soc_component *component = rtd->codec_dai->component;
++
++		snd_allo_boss_set_sclk(component,
++			params_rate(params));
++
++		ret = snd_allo_boss_update_rate_den(
++			substream, params);
++		if (ret)
++			return ret;
++	}
++
++	ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x03, 0x03,
++		channels, width);
++	if (ret)
++		return ret;
++	ret = snd_soc_dai_set_tdm_slot(rtd->codec_dai, 0x03, 0x03,
++		channels, width);
++	return ret;
++}
++
++static int snd_allo_boss_startup(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = rtd->codec_dai->component;
++	struct snd_soc_card *card = rtd->card;
++
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++	snd_allo_boss_gpio_mute(card);
++
++	if (snd_soc_allo_boss_master) {
++		struct pcm512x_priv *priv = snd_soc_component_get_drvdata(component);
++		/*
++		 * Default sclk to CLK_48EN_RATE, otherwise codec
++		 * pcm512x_dai_startup_master method could call
++		 * snd_pcm_hw_constraint_ratnums using CLK_44EN/64
++		 * which will mask 384k sample rate.
++		 */
++		if (!IS_ERR(priv->sclk))
++			clk_set_rate(priv->sclk, CLK_48EN_RATE);
++	}
++
++	return 0;
++}
++
++static void snd_allo_boss_shutdown(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = rtd->codec_dai->component;
++
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
++}
++
++static int snd_allo_boss_prepare(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_card *card = rtd->card;
++
++	snd_allo_boss_gpio_unmute(card);
++	return 0;
++}
++/* machine stream operations */
++static struct snd_soc_ops snd_allo_boss_ops = {
++	.hw_params = snd_allo_boss_hw_params,
++	.startup = snd_allo_boss_startup,
++	.shutdown = snd_allo_boss_shutdown,
++	.prepare = snd_allo_boss_prepare,
++};
++
++static struct snd_soc_dai_link snd_allo_boss_dai[] = {
++{
++	.name		= "Boss DAC",
++	.stream_name	= "Boss DAC HiFi",
++	.cpu_dai_name	= "bcm2708-i2s.0",
++	.codec_dai_name	= "pcm512x-hifi",
++	.platform_name	= "bcm2708-i2s.0",
++	.codec_name	= "pcm512x.1-004d",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S |
++			  SND_SOC_DAIFMT_NB_NF |
++			  SND_SOC_DAIFMT_CBS_CFS,
++	.ops		= &snd_allo_boss_ops,
++	.init		= snd_allo_boss_init,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_allo_boss = {
++	.name         = "BossDAC",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_allo_boss_dai,
++	.num_links    = ARRAY_SIZE(snd_allo_boss_dai),
++};
++
++static int snd_allo_boss_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_allo_boss.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai;
++
++		dai = &snd_allo_boss_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++					    "i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpu_dai_name = NULL;
++			dai->cpu_of_node = i2s_node;
++			dai->platform_name = NULL;
++			dai->platform_of_node = i2s_node;
++		}
++
++		digital_gain_0db_limit = !of_property_read_bool(
++			pdev->dev.of_node, "allo,24db_digital_gain");
++		slave = of_property_read_bool(pdev->dev.of_node,
++						"allo,slave");
++
++		mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute",
++							GPIOD_OUT_LOW);
++		if (IS_ERR(mute_gpio)) {
++			ret = PTR_ERR(mute_gpio);
++			dev_err(&pdev->dev,
++				"failed to get mute gpio: %d\n", ret);
++			return ret;
++		}
++
++		if (mute_gpio)
++			snd_allo_boss.set_bias_level =
++				snd_allo_boss_set_bias_level;
++
++		ret = snd_soc_register_card(&snd_allo_boss);
++		if (ret) {
++			dev_err(&pdev->dev,
++				"snd_soc_register_card() failed: %d\n", ret);
++			return ret;
++		}
++
++		if (mute_gpio)
++			snd_allo_boss_gpio_mute(&snd_allo_boss);
++
++		return 0;
++	}
++
++	return -EINVAL;
++}
++
++static int snd_allo_boss_remove(struct platform_device *pdev)
++{
++	snd_allo_boss_gpio_mute(&snd_allo_boss);
++	return snd_soc_unregister_card(&snd_allo_boss);
++}
++
++static const struct of_device_id snd_allo_boss_of_match[] = {
++	{ .compatible = "allo,boss-dac", },
++	{ /* sentinel */ },
++};
++MODULE_DEVICE_TABLE(of, snd_allo_boss_of_match);
++
++static struct platform_driver snd_allo_boss_driver = {
++	.driver = {
++		.name   = "snd-allo-boss-dac",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_allo_boss_of_match,
++	},
++	.probe          = snd_allo_boss_probe,
++	.remove         = snd_allo_boss_remove,
++};
++
++module_platform_driver(snd_allo_boss_driver);
++
++MODULE_AUTHOR("Baswaraj K <jaikumar@cem-solutions.net>");
++MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Boss DAC");
++MODULE_LICENSE("GPL v2");

target/linux/brcm2708/patches-4.19/950-0080-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch

@@ -0,0 +1,138 @@
+From 3e2070202a0607fe572f565ed4c18aa964fc18e5 Mon Sep 17 00:00:00 2001
+From: Miquel <miquelblauw@hotmail.com>
+Date: Fri, 24 Feb 2017 20:51:06 +0100
+Subject: [PATCH 080/703] sound: Support for Dion Audio LOCO-V2 DAC-AMP HAT
+
+Signed-off-by: Miquel Blauw <info@dionaudio.nl>
+
+ASoC: dionaudio_loco-v2: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Also remove hw_params and ops as they are no longer needed.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ sound/soc/bcm/dionaudio_loco-v2.c | 115 ++++++++++++++++++++++++++++++
+ 1 file changed, 115 insertions(+)
+ create mode 100644 sound/soc/bcm/dionaudio_loco-v2.c
+
+--- /dev/null
++++ b/sound/soc/bcm/dionaudio_loco-v2.c
+@@ -0,0 +1,115 @@
++/*
++ * ASoC Driver for Dion Audio LOCO-V2 DAC-AMP
++ *
++ * Author:      Miquel Blauw <info@dionaudio.nl>
++ *              Copyright 2017
++ *
++ * Based on the software of the RPi-DAC writen by Florian Meier
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++static bool digital_gain_0db_limit = true;
++
++static int snd_rpi_dionaudio_loco_v2_init(struct snd_soc_pcm_runtime *rtd)
++{
++	if (digital_gain_0db_limit) {
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
++	}
++
++	return 0;
++}
++
++static struct snd_soc_dai_link snd_rpi_dionaudio_loco_v2_dai[] = {
++{
++	.name		= "DionAudio LOCO-V2",
++	.stream_name	= "DionAudio LOCO-V2 DAC-AMP",
++	.cpu_dai_name	= "bcm2708-i2s.0",
++	.codec_dai_name	= "pcm512x-hifi",
++	.platform_name	= "bcm2708-i2s.0",
++	.codec_name	= "pcm512x.1-004d",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++			  SND_SOC_DAIFMT_CBS_CFS,
++	.init		= snd_rpi_dionaudio_loco_v2_init,
++},};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_dionaudio_loco_v2 = {
++	.name         = "Dion Audio LOCO-V2",
++	.dai_link     = snd_rpi_dionaudio_loco_v2_dai,
++	.num_links    = ARRAY_SIZE(snd_rpi_dionaudio_loco_v2_dai),
++};
++
++static int snd_rpi_dionaudio_loco_v2_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_rpi_dionaudio_loco_v2.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai =
++					&snd_rpi_dionaudio_loco_v2_dai[0];
++
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++					    "i2s-controller", 0);
++		if (i2s_node) {
++			dai->cpu_dai_name = NULL;
++			dai->cpu_of_node = i2s_node;
++			dai->platform_name = NULL;
++			dai->platform_of_node = i2s_node;
++		}
++
++		digital_gain_0db_limit = !of_property_read_bool(
++			pdev->dev.of_node, "dionaudio,24db_digital_gain");
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_dionaudio_loco_v2);
++	if (ret)
++		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
++			ret);
++
++	return ret;
++}
++
++static const struct of_device_id dionaudio_of_match[] = {
++	{ .compatible = "dionaudio,dionaudio-loco-v2", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, dionaudio_of_match);
++
++static struct platform_driver snd_rpi_dionaudio_loco_v2_driver = {
++	.driver = {
++		.name   = "snd-rpi-dionaudio-loco-v2",
++		.owner  = THIS_MODULE,
++		.of_match_table = dionaudio_of_match,
++	},
++	.probe          = snd_rpi_dionaudio_loco_v2_probe,
++};
++
++module_platform_driver(snd_rpi_dionaudio_loco_v2_driver);
++
++MODULE_AUTHOR("Miquel Blauw <info@dionaudio.nl>");
++MODULE_DESCRIPTION("ASoC Driver for DionAudio LOCO-V2");
++MODULE_LICENSE("GPL v2");

target/linux/brcm2708/patches-4.19/950-0081-Add-support-for-Fe-Pi-audio-sound-card.-1867.patch

@@ -0,0 +1,170 @@
+From 0719be99171119689b89d117141b65e849a49239 Mon Sep 17 00:00:00 2001
+From: Fe-Pi <fe-pi@cox.net>
+Date: Wed, 1 Mar 2017 04:42:43 -0700
+Subject: [PATCH 081/703] Add support for Fe-Pi audio sound card. (#1867)
+
+Fe-Pi Audio Sound Card is based on NXP SGTL5000 codec.
+Mechanical specification of the board is the same the Raspberry Pi Zero.
+3.5mm jacks for Headphone/Mic, Line In, and Line Out.
+
+Signed-off-by: Henry Kupis <fe-pi@cox.net>
+---
+ sound/soc/bcm/fe-pi-audio.c | 152 ++++++++++++++++++++++++++++++++++++
+ 1 file changed, 152 insertions(+)
+ create mode 100644 sound/soc/bcm/fe-pi-audio.c
+
+--- /dev/null
++++ b/sound/soc/bcm/fe-pi-audio.c
+@@ -0,0 +1,152 @@
++/*
++ * ASoC Driver for Fe-Pi Audio Sound Card
++ *
++ * Author:	Henry Kupis <kuupaz@gmail.com>
++ *		Copyright 2016
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ *		based on code by Shawn Guo <shawn.guo@linaro.org>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/io.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#include "../codecs/sgtl5000.h"
++
++static int snd_fe_pi_audio_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_card *card = rtd->card;
++	struct snd_soc_component *component = rtd->codec_dai->component;
++
++	snd_soc_dapm_force_enable_pin(&card->dapm, "LO");
++	snd_soc_dapm_force_enable_pin(&card->dapm, "ADC");
++	snd_soc_dapm_force_enable_pin(&card->dapm, "DAC");
++	snd_soc_dapm_force_enable_pin(&card->dapm, "HP");
++	snd_soc_component_update_bits(component, SGTL5000_CHIP_ANA_POWER,
++			SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP);
++
++	return 0;
++}
++
++static int snd_fe_pi_audio_hw_params(struct snd_pcm_substream *substream,
++	struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct device *dev = rtd->card->dev;
++	struct snd_soc_dai *codec_dai = rtd->codec_dai;
++
++	int ret;
++
++	/* Set SGTL5000's SYSCLK */
++	ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, 12288000, SND_SOC_CLOCK_IN);
++	if (ret) {
++		dev_err(dev, "could not set codec driver clock params\n");
++		return ret;
++	}
++
++	return 0;
++}
++
++
++static struct snd_soc_ops snd_fe_pi_audio_ops = {
++	.hw_params = snd_fe_pi_audio_hw_params,
++};
++
++static struct snd_soc_dai_link snd_fe_pi_audio_dai[] = {
++	{
++		.name		= "FE-PI",
++		.stream_name	= "Fe-Pi HiFi",
++		.cpu_dai_name	= "bcm2708-i2s.0",
++		.codec_dai_name	= "sgtl5000",
++		.platform_name	= "bcm2708-i2s.0",
++		.codec_name	= "sgtl5000.1-000a",
++		.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++					SND_SOC_DAIFMT_CBM_CFM,
++		.ops		= &snd_fe_pi_audio_ops,
++		.init		= snd_fe_pi_audio_init,
++	},
++};
++
++static const struct snd_soc_dapm_route fe_pi_audio_dapm_routes[] = {
++	{"ADC", NULL, "Mic Bias"},
++};
++
++
++static struct snd_soc_card fe_pi_audio = {
++	.name         = "Fe-Pi Audio",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_fe_pi_audio_dai,
++	.num_links    = ARRAY_SIZE(snd_fe_pi_audio_dai),
++
++	.dapm_routes = fe_pi_audio_dapm_routes,
++	.num_dapm_routes = ARRAY_SIZE(fe_pi_audio_dapm_routes),
++};
++
++static int snd_fe_pi_audio_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++	struct snd_soc_card *card = &fe_pi_audio;
++	struct device_node *np = pdev->dev.of_node;
++	struct device_node *i2s_node;
++	struct snd_soc_dai_link *dai = &snd_fe_pi_audio_dai[0];
++
++	fe_pi_audio.dev = &pdev->dev;
++
++	i2s_node = of_parse_phandle(np, "i2s-controller", 0);
++	if (!i2s_node) {
++		dev_err(&pdev->dev, "i2s_node phandle missing or invalid\n");
++		return -EINVAL;
++	}
++
++	dai->cpu_dai_name = NULL;
++	dai->cpu_of_node = i2s_node;
++	dai->platform_name = NULL;
++	dai->platform_of_node = i2s_node;
++
++	of_node_put(i2s_node);
++
++	card->dev = &pdev->dev;
++	platform_set_drvdata(pdev, card);
++
++	ret = devm_snd_soc_register_card(&pdev->dev, card);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_fe_pi_audio_of_match[] = {
++	{ .compatible = "fe-pi,fe-pi-audio", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, snd_fe_pi_audio_of_match);
++
++static struct platform_driver snd_fe_pi_audio_driver = {
++        .driver = {
++                .name   = "snd-fe-pi-audio",
++                .owner  = THIS_MODULE,
++                .of_match_table = snd_fe_pi_audio_of_match,
++        },
++        .probe          = snd_fe_pi_audio_probe,
++};
++
++module_platform_driver(snd_fe_pi_audio_driver);
++
++MODULE_AUTHOR("Henry Kupis <fe-pi@cox.net>");
++MODULE_DESCRIPTION("ASoC Driver for Fe-Pi Audio");
++MODULE_LICENSE("GPL v2");

target/linux/brcm2708/patches-4.19/950-0082-Add-support-for-the-AudioInjector.net-Octo-sound-car.patch

@@ -0,0 +1,374 @@
+From e95def09872db37a8e577da0882a113f68476af4 Mon Sep 17 00:00:00 2001
+From: Matt Flax <flatmax@flatmax.org>
+Date: Wed, 8 Mar 2017 20:04:13 +1100
+Subject: [PATCH 082/703] Add support for the AudioInjector.net Octo sound card
+
+AudioInjector Octo: sample rates, regulators, reset
+
+This patch adds new sample rates to the Audioinjector Octo sound card. The
+new supported rates are (in kHz) :
+96, 48, 32, 24, 16, 8, 88.2, 44.1, 29.4, 22.05, 14.7
+
+Reference the bcm270x DT regulators in the overlay.
+
+This patch adds a reset GPIO for the AudioInjector.net octo sound card.
+
+Audioinjector octo : Make the playback and capture symmetric
+
+This patch ensures that the sample rate and channel count of the audioinjector
+octo sound card are symmetric.
+
+audioinjector-octo: Add continuous clock feature
+
+By user request, add a switch to prevent the clocks being stopped when
+the stream is paused, stopped or shutdown. Provide access to the switch
+by adding a 'non-stop-clocks' parameter to the audioinjector-addons
+overlay.
+
+See: https://github.com/raspberrypi/linux/issues/2409
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ sound/soc/bcm/audioinjector-octo-soundcard.c | 336 +++++++++++++++++++
+ 1 file changed, 336 insertions(+)
+ create mode 100644 sound/soc/bcm/audioinjector-octo-soundcard.c
+
+--- /dev/null
++++ b/sound/soc/bcm/audioinjector-octo-soundcard.c
+@@ -0,0 +1,336 @@
++/*
++ * ASoC Driver for AudioInjector Pi octo channel soundcard (hat)
++ *
++ *  Created on: 27-October-2016
++ *      Author: flatmax@flatmax.org
++ *              based on audioinjector-pi-soundcard.c
++ *
++ * Copyright (C) 2016 Flatmax Pty. Ltd.
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/gpio/consumer.h>
++
++#include <sound/core.h>
++#include <sound/soc.h>
++#include <sound/pcm_params.h>
++#include <sound/control.h>
++
++static struct gpio_descs *mult_gpios;
++static struct gpio_desc *codec_rst_gpio;
++static unsigned int audioinjector_octo_rate;
++static bool non_stop_clocks;
++
++static const unsigned int audioinjector_octo_rates[] = {
++	96000, 48000, 32000, 24000, 16000, 8000, 88200, 44100, 29400, 22050, 14700,
++};
++
++static struct snd_pcm_hw_constraint_list audioinjector_octo_constraints = {
++	.list = audioinjector_octo_rates,
++	.count = ARRAY_SIZE(audioinjector_octo_rates),
++};
++
++static int audioinjector_octo_dai_init(struct snd_soc_pcm_runtime *rtd)
++{
++	return snd_soc_dai_set_bclk_ratio(rtd->cpu_dai, 64);
++}
++
++static int audioinjector_octo_startup(struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	rtd->cpu_dai->driver->playback.channels_min = 8;
++	rtd->cpu_dai->driver->playback.channels_max = 8;
++	rtd->cpu_dai->driver->capture.channels_min = 8;
++	rtd->cpu_dai->driver->capture.channels_max = 8;
++	rtd->codec_dai->driver->capture.channels_max = 8;
++	
++	snd_pcm_hw_constraint_list(substream->runtime, 0,
++				SNDRV_PCM_HW_PARAM_RATE,
++				&audioinjector_octo_constraints);
++
++	return 0;
++}
++
++static void audioinjector_octo_shutdown(struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	rtd->cpu_dai->driver->playback.channels_min = 2;
++	rtd->cpu_dai->driver->playback.channels_max = 2;
++	rtd->cpu_dai->driver->capture.channels_min = 2;
++	rtd->cpu_dai->driver->capture.channels_max = 2;
++	rtd->codec_dai->driver->capture.channels_max = 6;
++}
++
++static int audioinjector_octo_hw_params(struct snd_pcm_substream *substream,
++	struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++
++	// set codec DAI configuration
++	int ret = snd_soc_dai_set_fmt(rtd->codec_dai,
++			SND_SOC_DAIFMT_CBS_CFS|SND_SOC_DAIFMT_DSP_A|
++			SND_SOC_DAIFMT_NB_NF);
++	if (ret < 0)
++		return ret;
++
++	// set cpu DAI configuration
++	ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
++			SND_SOC_DAIFMT_CBM_CFM|SND_SOC_DAIFMT_I2S|
++			SND_SOC_DAIFMT_NB_NF);
++	if (ret < 0)
++		return ret;
++
++	audioinjector_octo_rate = params_rate(params);
++
++	// Set the correct sysclock for the codec
++	switch (audioinjector_octo_rate) {
++	case 96000:
++	case 48000:
++		return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 49152000,
++									0);
++		break;
++	case 24000:
++		return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 49152000/2,
++									0);
++		break;
++	case 32000:
++	case 16000:
++		return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 49152000/3,
++									0);
++		break;
++	case 8000:
++		return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 49152000/6,
++									0);
++		break;
++	case 88200:
++	case 44100:
++		return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 45185400,
++									0);
++		break;
++	case 22050:
++		return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 45185400/2,
++									0);
++		break;
++	case 29400:
++	case 14700:
++		return snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 45185400/3,
++									0);
++		break;
++	default:
++		return -EINVAL;
++	}
++}
++
++static int audioinjector_octo_trigger(struct snd_pcm_substream *substream,
++								int cmd){
++	int mult[4];
++
++	memset(mult, 0, sizeof(mult));
++
++	switch (cmd) {
++	case SNDRV_PCM_TRIGGER_STOP:
++	case SNDRV_PCM_TRIGGER_SUSPEND:
++	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
++		if (!non_stop_clocks)
++			break;
++		/* Drop through... */
++	case SNDRV_PCM_TRIGGER_START:
++	case SNDRV_PCM_TRIGGER_RESUME:
++	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
++		switch (audioinjector_octo_rate) {
++		case 96000:
++			mult[3] = 1;
++		case 88200:
++			mult[1] = 1;
++			mult[2] = 1;
++			break;
++		case 48000:
++			mult[3] = 1;
++		case 44100:
++			mult[2] = 1;
++			break;
++		case 32000:
++			mult[3] = 1;
++		case 29400:
++			mult[0] = 1;
++			mult[1] = 1;
++			break;
++		case 24000:
++			mult[3] = 1;
++		case 22050:
++			mult[1] = 1;
++			break;
++		case 16000:
++			mult[3] = 1;
++		case 14700:
++			mult[0] = 1;
++			break;
++		case 8000:
++			mult[3] = 1;
++			break;
++		default:
++			return -EINVAL;
++		}
++		break;
++	default:
++		return -EINVAL;
++	}
++	gpiod_set_array_value_cansleep(mult_gpios->ndescs, mult_gpios->desc,
++									mult);
++
++	return 0;
++}
++
++static struct snd_soc_ops audioinjector_octo_ops = {
++	.startup	= audioinjector_octo_startup,
++	.shutdown	= audioinjector_octo_shutdown,
++	.hw_params = audioinjector_octo_hw_params,
++	.trigger = audioinjector_octo_trigger,
++};
++
++static struct snd_soc_dai_link audioinjector_octo_dai[] = {
++	{
++		.name = "AudioInjector Octo",
++		.stream_name = "AudioInject-HIFI",
++		.codec_dai_name = "cs42448",
++		.ops = &audioinjector_octo_ops,
++		.init = audioinjector_octo_dai_init,
++		.symmetric_rates = 1,
++		.symmetric_channels = 1,
++	},
++};
++
++static const struct snd_soc_dapm_widget audioinjector_octo_widgets[] = {
++	SND_SOC_DAPM_OUTPUT("OUTPUTS0"),
++	SND_SOC_DAPM_OUTPUT("OUTPUTS1"),
++	SND_SOC_DAPM_OUTPUT("OUTPUTS2"),
++	SND_SOC_DAPM_OUTPUT("OUTPUTS3"),
++	SND_SOC_DAPM_INPUT("INPUTS0"),
++	SND_SOC_DAPM_INPUT("INPUTS1"),
++	SND_SOC_DAPM_INPUT("INPUTS2"),
++};
++
++static const struct snd_soc_dapm_route audioinjector_octo_route[] = {
++	/* Balanced outputs */
++	{"OUTPUTS0", NULL, "AOUT1L"},
++	{"OUTPUTS0", NULL, "AOUT1R"},
++	{"OUTPUTS1", NULL, "AOUT2L"},
++	{"OUTPUTS1", NULL, "AOUT2R"},
++	{"OUTPUTS2", NULL, "AOUT3L"},
++	{"OUTPUTS2", NULL, "AOUT3R"},
++	{"OUTPUTS3", NULL, "AOUT4L"},
++	{"OUTPUTS3", NULL, "AOUT4R"},
++
++	/* Balanced inputs */
++	{"AIN1L", NULL, "INPUTS0"},
++	{"AIN1R", NULL, "INPUTS0"},
++	{"AIN2L", NULL, "INPUTS1"},
++	{"AIN2R", NULL, "INPUTS1"},
++	{"AIN3L", NULL, "INPUTS2"},
++	{"AIN3R", NULL, "INPUTS2"},
++};
++
++static struct snd_soc_card snd_soc_audioinjector_octo = {
++	.name = "audioinjector-octo-soundcard",
++	.dai_link = audioinjector_octo_dai,
++	.num_links = ARRAY_SIZE(audioinjector_octo_dai),
++
++	.dapm_widgets = audioinjector_octo_widgets,
++	.num_dapm_widgets = ARRAY_SIZE(audioinjector_octo_widgets),
++	.dapm_routes = audioinjector_octo_route,
++	.num_dapm_routes = ARRAY_SIZE(audioinjector_octo_route),
++};
++
++static int audioinjector_octo_probe(struct platform_device *pdev)
++{
++	struct snd_soc_card *card = &snd_soc_audioinjector_octo;
++	int ret;
++
++	card->dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct snd_soc_dai_link *dai = &audioinjector_octo_dai[0];
++		struct device_node *i2s_node =
++					of_parse_phandle(pdev->dev.of_node,
++							"i2s-controller", 0);
++		struct device_node *codec_node =
++					of_parse_phandle(pdev->dev.of_node,
++								"codec", 0);
++
++		mult_gpios = devm_gpiod_get_array_optional(&pdev->dev, "mult",
++								GPIOD_OUT_LOW);
++		if (IS_ERR(mult_gpios))
++			return PTR_ERR(mult_gpios);
++
++		codec_rst_gpio = devm_gpiod_get_optional(&pdev->dev, "reset",
++								GPIOD_OUT_LOW);
++		if (IS_ERR(codec_rst_gpio))
++			return PTR_ERR(codec_rst_gpio);
++
++		non_stop_clocks = of_property_read_bool(pdev->dev.of_node, "non-stop-clocks");
++
++		if (codec_rst_gpio)
++			gpiod_set_value(codec_rst_gpio, 1);
++		msleep(500);
++		if (codec_rst_gpio)
++			gpiod_set_value(codec_rst_gpio, 0);
++		msleep(500);
++		if (codec_rst_gpio)
++			gpiod_set_value(codec_rst_gpio, 1);
++		msleep(500);
++
++		if (i2s_node && codec_node) {
++			dai->cpu_dai_name = NULL;
++			dai->cpu_of_node = i2s_node;
++			dai->platform_name = NULL;
++			dai->platform_of_node = i2s_node;
++			dai->codec_name = NULL;
++			dai->codec_of_node = codec_node;
++		} else
++			if (!dai->cpu_of_node) {
++				dev_err(&pdev->dev,
++				"i2s-controller missing or invalid in DT\n");
++				return -EINVAL;
++			} else {
++				dev_err(&pdev->dev,
++				"Property 'codec' missing or invalid\n");
++				return -EINVAL;
++			}
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, card);
++	if (ret != 0)
++		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
++	return ret;
++}
++
++static const struct of_device_id audioinjector_octo_of_match[] = {
++	{ .compatible = "ai,audioinjector-octo-soundcard", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, audioinjector_octo_of_match);
++
++static struct platform_driver audioinjector_octo_driver = {
++	.driver	= {
++		.name			= "audioinjector-octo",
++		.owner			= THIS_MODULE,
++		.of_match_table = audioinjector_octo_of_match,
++	},
++	.probe	= audioinjector_octo_probe,
++};
++
++module_platform_driver(audioinjector_octo_driver);
++MODULE_AUTHOR("Matt Flax <flatmax@flatmax.org>");
++MODULE_DESCRIPTION("AudioInjector.net octo Soundcard");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:audioinjector-octo-soundcard");