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update atheros 2.6 port - add support for the older chip generation

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SVN-Revision: 6265
v19.07.3_mercusys_ac12_duma
Felix Fietkau 18 years ago
parent b4bd264899
commit 76c376d82a
25 changed files with 5210 additions and 4686 deletions
Show Stats Download Patch File Download Diff File

16
target/linux/atheros-2.6/config
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@ -14,12 +14,8 @@ CONFIG_AIRO=m
CONFIG_AIRO_CS=m
# CONFIG_AMD8111_ETH is not set
# CONFIG_AMIGA_PARTITION is not set
CONFIG_AP51=y
# CONFIG_APPLICOM is not set
CONFIG_AR2313=y
CONFIG_AR5315=y
CONFIG_AR531X=y
CONFIG_AR531X_COBRA=y
CONFIG_ARCH_FLATMEM_ENABLE=y
# CONFIG_ARCNET is not set
CONFIG_ARPD=y
@ -28,6 +24,9 @@ CONFIG_ASK_IP_FIB_HASH=y
# CONFIG_ATALK is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_ATA_OVER_ETH is not set
CONFIG_ATHEROS=y
CONFIG_ATHEROS_AR5312=y
CONFIG_ATHEROS_AR5315=y
# CONFIG_ATM is not set
CONFIG_ATMEL=m
# CONFIG_ATM_AMBASSADOR is not set
@ -689,10 +688,10 @@ CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_OTP is not set
CONFIG_MTD_PARTITIONS=y
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_PHYSMAP is not set
# CONFIG_MTD_PHYSMAP_BANKWIDTH is not set
# CONFIG_MTD_PHYSMAP_LEN is not set
# CONFIG_MTD_PHYSMAP_START is not set
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_PHYSMAP_BANKWIDTH=0
CONFIG_MTD_PHYSMAP_LEN=0x0
CONFIG_MTD_PHYSMAP_START=0x0
# CONFIG_MTD_PLATRAM is not set
# CONFIG_MTD_RAM is not set
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-3
@ -878,7 +877,6 @@ CONFIG_PCCARD_NONSTATIC=m
CONFIG_PCI=y
CONFIG_PCI_ATMEL=m
CONFIG_PCI_HERMES=m
# CONFIG_PCMCIA is not set
# CONFIG_PCMCIA_AHA152X is not set
# CONFIG_PCMCIA_DEBUG is not set
# CONFIG_PCMCIA_FDOMAIN is not set

17
target/linux/atheros-2.6/config-diff
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@ -1,11 +1,10 @@
CONFIG_32BIT=y
# CONFIG_64BIT is not set
# CONFIG_64BIT_PHYS_ADDR is not set
CONFIG_AP51=y
CONFIG_AR2313=y
CONFIG_AR5315=y
CONFIG_AR531X=y
CONFIG_AR531X_COBRA=y
CONFIG_ATHEROS=y
CONFIG_ATHEROS_AR5312=y
CONFIG_ATHEROS_AR5315=y
# CONFIG_ATM is not set
CONFIG_BASE_SMALL=0
# CONFIG_BT is not set
@ -43,7 +42,6 @@ CONFIG_DMA_NEED_PCI_MAP_STATE=y
CONFIG_DMA_NONCOHERENT=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FS_POSIX_ACL=y
# CONFIG_FUSE_FS is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
# CONFIG_GEN_RTC is not set
CONFIG_HAVE_STD_PC_SERIAL_PORT=y
@ -138,10 +136,10 @@ CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_OTP is not set
CONFIG_MTD_PARTITIONS=y
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_PHYSMAP is not set
# CONFIG_MTD_PHYSMAP_BANKWIDTH is not set
# CONFIG_MTD_PHYSMAP_LEN is not set
# CONFIG_MTD_PHYSMAP_START is not set
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_PHYSMAP_BANKWIDTH=0
CONFIG_MTD_PHYSMAP_LEN=0x0
CONFIG_MTD_PHYSMAP_START=0x0
# CONFIG_MTD_PLATRAM is not set
# CONFIG_MTD_RAM is not set
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-3
@ -155,7 +153,6 @@ CONFIG_MTD_SPIFLASH=y
CONFIG_PAGE_SIZE_4KB=y
# CONFIG_PAGE_SIZE_64KB is not set
# CONFIG_PAGE_SIZE_8KB is not set
# CONFIG_PCMCIA is not set
# CONFIG_PCCARD is not set
# CONFIG_PMC_YOSEMITE is not set
# CONFIG_PNX8550_JBS is not set

13
target/linux/atheros-2.6/files/arch/mips/atheros/Kconfig
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@ -0,0 +1,13 @@
config ATHEROS_AR5312
bool "Atheros 5312/2312+ support"
depends on ATHEROS
default y
config ATHEROS_AR5315
bool "Atheros 5315/2315+ support"
depends on ATHEROS
default y

22
target/linux/atheros-2.6/files/arch/mips/atheros/Makefile
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@ -0,0 +1,22 @@
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
# Copyright (C) 2006 FON Technology, SL.
# Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
# Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
#
# Makefile for Atheros ar531x boards
#
# Note! Dependencies are done automagically by 'make dep', which also
# removes any old dependencies. DON'T put your own dependencies here
# unless it's something special (ie not a .c file).
#
obj-y += board.o prom.o irq.o
obj-$(CONFIG_ATHEROS_AR5312) += ar5312.o
obj-$(CONFIG_ATHEROS_AR5315) += ar5315.o

471
target/linux/atheros-2.6/files/arch/mips/atheros/ar5312.c
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@ -0,0 +1,471 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
* Copyright (C) 2006 FON Technology, SL.
* Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
*/
/*
* Platform devices for Atheros SoCs
*/
#include <linux/autoconf.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/reboot.h>
#include <asm/bootinfo.h>
#include <asm/reboot.h>
#include <asm/time.h>
#include <asm/irq.h>
#include <asm/io.h>
#include "ar531x.h"
#define AR531X_IRQ_WLAN0_INTRS MIPS_CPU_IRQ_BASE+2 /* C0_CAUSE: 0x0400 */
#define AR531X_IRQ_ENET0_INTRS MIPS_CPU_IRQ_BASE+3 /* C0_CAUSE: 0x0800 */
#define AR531X_IRQ_ENET1_INTRS MIPS_CPU_IRQ_BASE+4 /* C0_CAUSE: 0x1000 */
#define AR531X_IRQ_WLAN1_INTRS MIPS_CPU_IRQ_BASE+5 /* C0_CAUSE: 0x2000 */
#define AR531X_IRQ_MISC_INTRS MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */
static struct platform_device *ar5312_devs[5];
static struct resource ar5312_eth0_res[] = {
{
.name = "eth_membase",
.flags = IORESOURCE_MEM,
.start = KSEG1ADDR(AR531X_ENET0),
.end = KSEG1ADDR(AR531X_ENET0 + 0x2000),
},
{
.name = "eth_irq",
.flags = IORESOURCE_IRQ,
.start = AR531X_IRQ_ENET0_INTRS,
.end = AR531X_IRQ_ENET0_INTRS,
},
};
static struct resource ar5312_eth1_res[] = {
{
.name = "eth_membase",
.flags = IORESOURCE_MEM,
.start = KSEG1ADDR(AR531X_ENET1),
.end = KSEG1ADDR(AR531X_ENET1 + 0x2000),
},
{
.name = "eth_irq",
.flags = IORESOURCE_IRQ,
.start = AR531X_IRQ_ENET1_INTRS,
.end = AR531X_IRQ_ENET1_INTRS,
},
};
static struct ar531x_eth ar5312_eth0_data = {
.phy = 0x1f,
.mac = 0,
.reset_base = AR531X_RESET,
.reset_mac = AR531X_RESET_ENET0,
.reset_phy = AR531X_RESET_EPHY0,
};
static struct ar531x_eth ar5312_eth1_data = {
.phy = 0,
.mac = 1,
.reset_base = AR531X_RESET,
.reset_mac = AR531X_RESET_ENET1,
.reset_phy = AR531X_RESET_EPHY1,
};
static struct platform_device ar5312_eth[] = {
{
.id = 0,
.name = "ar531x-eth",
.dev.platform_data = &ar5312_eth0_data,
.resource = ar5312_eth0_res,
.num_resources = ARRAY_SIZE(ar5312_eth0_res)
},
{
.id = 1,
.name = "ar531x-eth",
.dev.platform_data = &ar5312_eth1_data,
.resource = ar5312_eth1_res,
.num_resources = ARRAY_SIZE(ar5312_eth1_res)
},
};
static struct platform_device ar5312_wmac[] = {
{
.id = 0,
.name = "ar531x-wmac",
},
{
.id = 1,
.name = "ar531x-wmac",
},
};
static struct physmap_flash_data ar5312_flash_data = {
.width = 2,
};
static struct resource ar5312_flash_resource = {
.start = AR531X_FLASH,
.end = AR531X_FLASH + 0x400000 - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device ar5312_physmap_flash = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &ar5312_flash_data,
},
.num_resources = 1,
.resource = &ar5312_flash_resource,
};
/*
* NB: This mapping size is larger than the actual flash size,
* but this shouldn't be a problem here, because the flash
* will simply be mapped multiple times.
*/
static char __init *ar5312_flash_limit(void)
{
u32 ctl;
/* Configure flash bank 0 */
ctl = FLASHCTL_E |
FLASHCTL_AC_8M |
FLASHCTL_RBLE |
(0x01 << FLASHCTL_IDCY_S) |
(0x07 << FLASHCTL_WST1_S) |
(0x07 << FLASHCTL_WST2_S) |
(sysRegRead(AR531X_FLASHCTL0) & FLASHCTL_MW);
sysRegWrite(AR531X_FLASHCTL0, ctl);
/* Disable other flash banks */
sysRegWrite(AR531X_FLASHCTL1,
sysRegRead(AR531X_FLASHCTL1) & ~(FLASHCTL_E | FLASHCTL_AC));
sysRegWrite(AR531X_FLASHCTL2,
sysRegRead(AR531X_FLASHCTL2) & ~(FLASHCTL_E | FLASHCTL_AC));
return (char *) KSEG1ADDR(AR531X_FLASH + 0x400000);
}
static struct ar531x_config __init *init_wmac(int unit)
{
struct ar531x_config *config;
config = (struct ar531x_config *) kzalloc(sizeof(struct ar531x_config), GFP_KERNEL);
config->board = board_config;
config->radio = radio_config;
config->unit = unit;
config->tag = (u_int16_t) ((sysRegRead(AR531X_REV) >> AR531X_REV_WMAC_MIN_S) & AR531X_REV_CHIP);
return config;
}
int __init ar5312_init_devices(void)
{
char *radio;
int dev = 0;
if (mips_machtype != MACH_ATHEROS_AR5312)
return 0;
ar531x_find_config(ar5312_flash_limit());
ar5312_eth0_data.board_config = board_config;
ar5312_eth1_data.board_config = board_config;
ar5312_devs[dev++] = &ar5312_physmap_flash;
ar5312_devs[dev++] = &ar5312_eth[0];
ar5312_devs[dev++] = &ar5312_eth[1];
radio = radio_config + AR531X_RADIO_MASK_OFF;
if (*((u32 *) radio) & AR531X_RADIO0_MASK) {
ar5312_wmac[0].dev.platform_data = init_wmac(0);
ar5312_devs[dev++] = &ar5312_wmac[0];
}
if (*((u32 *) radio) & AR531X_RADIO1_MASK) {
ar5312_wmac[1].dev.platform_data = init_wmac(1);
ar5312_devs[dev++] = &ar5312_wmac[1];
}
return platform_add_devices(ar5312_devs, dev);
}
/*
* Called when an interrupt is received, this function
* determines exactly which interrupt it was, and it
* invokes the appropriate handler.
*
* Implicitly, we also define interrupt priority by
* choosing which to dispatch first.
*/
asmlinkage void ar5312_irq_dispatch(void)
{
int pending = read_c0_status() & read_c0_cause();
if (pending & CAUSEF_IP2)
do_IRQ(AR531X_IRQ_WLAN0_INTRS);
else if (pending & CAUSEF_IP3)
do_IRQ(AR531X_IRQ_ENET0_INTRS);
else if (pending & CAUSEF_IP4)
do_IRQ(AR531X_IRQ_ENET1_INTRS);
else if (pending & CAUSEF_IP5)
do_IRQ(AR531X_IRQ_WLAN1_INTRS);
else if (pending & CAUSEF_IP6) {
unsigned int ar531x_misc_intrs = sysRegRead(AR531X_ISR) & sysRegRead(AR531X_IMR);
if (ar531x_misc_intrs & AR531X_ISR_TIMER) {
do_IRQ(AR531X_MISC_IRQ_TIMER);
(void)sysRegRead(AR531X_TIMER);
} else if (ar531x_misc_intrs & AR531X_ISR_AHBPROC)
do_IRQ(AR531X_MISC_IRQ_AHB_PROC);
else if ((ar531x_misc_intrs & AR531X_ISR_UART0))
do_IRQ(AR531X_MISC_IRQ_UART0);
else if (ar531x_misc_intrs & AR531X_ISR_WD)
do_IRQ(AR531X_MISC_IRQ_WATCHDOG);
else
do_IRQ(AR531X_MISC_IRQ_NONE);
} else if (pending & CAUSEF_IP7) {
do_IRQ(AR531X_IRQ_CPU_CLOCK);
}
else
do_IRQ(AR531X_IRQ_NONE);
}
static void ar5312_halt(void)
{
while (1);
}
static void ar5312_power_off(void)
{
ar5312_halt();
}
static void ar5312_restart(char *command)
{
/* reset the system */
for(;;) sysRegWrite(AR531X_RESET, AR531X_RESET_SYSTEM);
}
/*
* This table is indexed by bits 5..4 of the CLOCKCTL1 register
* to determine the predevisor value.
*/
static int __initdata CLOCKCTL1_PREDIVIDE_TABLE[4] = {
1,
2,
4,
5
};
static unsigned int __init ar5312_cpu_frequency(void)
{
unsigned int result;
unsigned int predivide_mask, predivide_shift;
unsigned int multiplier_mask, multiplier_shift;
unsigned int clockCtl1, preDivideSelect, preDivisor, multiplier;
unsigned int doubler_mask;
unsigned int wisoc_revision;
/* Trust the bootrom's idea of cpu frequency. */
if ((result = sysRegRead(AR5312_SCRATCH)))
return result;
wisoc_revision = (sysRegRead(AR531X_REV) & AR531X_REV_MAJ) >> AR531X_REV_MAJ_S;
if (wisoc_revision == AR531X_REV_MAJ_AR2313) {
predivide_mask = AR2313_CLOCKCTL1_PREDIVIDE_MASK;
predivide_shift = AR2313_CLOCKCTL1_PREDIVIDE_SHIFT;
multiplier_mask = AR2313_CLOCKCTL1_MULTIPLIER_MASK;
multiplier_shift = AR2313_CLOCKCTL1_MULTIPLIER_SHIFT;
doubler_mask = AR2313_CLOCKCTL1_DOUBLER_MASK;
} else { /* AR5312 and AR2312 */
predivide_mask = AR5312_CLOCKCTL1_PREDIVIDE_MASK;
predivide_shift = AR5312_CLOCKCTL1_PREDIVIDE_SHIFT;
multiplier_mask = AR5312_CLOCKCTL1_MULTIPLIER_MASK;
multiplier_shift = AR5312_CLOCKCTL1_MULTIPLIER_SHIFT;
doubler_mask = AR5312_CLOCKCTL1_DOUBLER_MASK;
}
/*
* Clocking is derived from a fixed 40MHz input clock.
*
* cpuFreq = InputClock * MULT (where MULT is PLL multiplier)
* sysFreq = cpuFreq / 4 (used for APB clock, serial,
* flash, Timer, Watchdog Timer)
*
* cntFreq = cpuFreq / 2 (use for CPU count/compare)
*
* So, for example, with a PLL multiplier of 5, we have
*
* cpuFreq = 200MHz
* sysFreq = 50MHz
* cntFreq = 100MHz
*
* We compute the CPU frequency, based on PLL settings.
*/
clockCtl1 = sysRegRead(AR5312_CLOCKCTL1);
preDivideSelect = (clockCtl1 & predivide_mask) >> predivide_shift;
preDivisor = CLOCKCTL1_PREDIVIDE_TABLE[preDivideSelect];
multiplier = (clockCtl1 & multiplier_mask) >> multiplier_shift;
if (clockCtl1 & doubler_mask) {
multiplier = multiplier << 1;
}
return (40000000 / preDivisor) * multiplier;
}
static inline int ar5312_sys_frequency(void)
{
return ar5312_cpu_frequency() / 4;
}
static void __init ar5312_time_init(void)
{
mips_hpt_frequency = ar5312_cpu_frequency() / 2;
}
/* Enable the specified AR531X_MISC_IRQ interrupt */
static void
ar5312_misc_intr_enable(unsigned int irq)
{
unsigned int imr;
imr = sysRegRead(AR531X_IMR);
imr |= (1 << (irq - AR531X_MISC_IRQ_BASE - 1));
sysRegWrite(AR531X_IMR, imr);
sysRegRead(AR531X_IMR); /* flush write buffer */
}
/* Disable the specified AR531X_MISC_IRQ interrupt */
static void
ar5312_misc_intr_disable(unsigned int irq)
{
unsigned int imr;
imr = sysRegRead(AR531X_IMR);
imr &= ~(1 << (irq - AR531X_MISC_IRQ_BASE - 1));
sysRegWrite(AR531X_IMR, imr);
sysRegRead(AR531X_IMR); /* flush write buffer */
}
/* Turn on the specified AR531X_MISC_IRQ interrupt */
static unsigned int
ar5312_misc_intr_startup(unsigned int irq)
{
ar5312_misc_intr_enable(irq);
return 0;
}
/* Turn off the specified AR531X_MISC_IRQ interrupt */
static void
ar5312_misc_intr_shutdown(unsigned int irq)
{
ar5312_misc_intr_disable(irq);
}
static void
ar5312_misc_intr_ack(unsigned int irq)
{
ar5312_misc_intr_disable(irq);
}
static void
ar5312_misc_intr_end(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
ar5312_misc_intr_enable(irq);
}
static struct irq_chip ar5312_misc_intr_controller = {
.typename = "AR5312 misc",
.startup = ar5312_misc_intr_startup,
.shutdown = ar5312_misc_intr_shutdown,
.enable = ar5312_misc_intr_enable,
.disable = ar5312_misc_intr_disable,
.ack = ar5312_misc_intr_ack,
.end = ar5312_misc_intr_end,
};
static irqreturn_t ar5312_ahb_proc_handler(int cpl, void *dev_id)
{
u32 proc1 = sysRegRead(AR531X_PROC1);
u32 procAddr = sysRegRead(AR531X_PROCADDR); /* clears error state */
u32 dma1 = sysRegRead(AR531X_DMA1);
u32 dmaAddr = sysRegRead(AR531X_DMAADDR); /* clears error state */
printk("AHB interrupt: PROCADDR=0x%8.8x PROC1=0x%8.8x DMAADDR=0x%8.8x DMA1=0x%8.8x\n",
procAddr, proc1, dmaAddr, dma1);
machine_restart("AHB error"); /* Catastrophic failure */
return IRQ_HANDLED;
}
static struct irqaction ar5312_ahb_proc_interrupt = {
.handler = ar5312_ahb_proc_handler,
.flags = SA_INTERRUPT,
.name = "ar5312_ahb_proc_interrupt",
};
static struct irqaction cascade = {
.handler = no_action,
.flags = SA_INTERRUPT,
.name = "cascade",
};
void __init ar5312_misc_intr_init(int irq_base)
{
int i;
for (i = irq_base; i < irq_base + AR531X_MISC_IRQ_COUNT; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].chip = &ar5312_misc_intr_controller;
}
setup_irq(AR531X_MISC_IRQ_AHB_PROC, &ar5312_ahb_proc_interrupt);
setup_irq(AR531X_IRQ_MISC_INTRS, &cascade);
}
void __init ar5312_plat_setup(void)
{
/* Clear any lingering AHB errors */
sysRegRead(AR531X_PROCADDR);
sysRegRead(AR531X_DMAADDR);
sysRegWrite(AR531X_WD_CTRL, AR531X_WD_CTRL_IGNORE_EXPIRATION);
board_time_init = ar5312_time_init;
_machine_restart = ar5312_restart;
_machine_halt = ar5312_halt;
pm_power_off = ar5312_power_off;
serial_setup(KSEG1ADDR(AR531X_UART0), ar5312_sys_frequency());
}
arch_initcall(ar5312_init_devices);

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target/linux/atheros-2.6/files/arch/mips/atheros/ar5312.h
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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
* Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
*/
#ifndef AR5312_H
#define AR5312_H
#include <asm/addrspace.h>
/* Address Map */
#define AR531X_WLAN0 0x18000000
#define AR531X_WLAN1 0x18500000
#define AR531X_ENET0 0x18100000
#define AR531X_ENET1 0x18200000
#define AR531X_SDRAMCTL 0x18300000
#define AR531X_FLASHCTL 0x18400000
#define AR531X_APBBASE 0x1c000000
#define AR531X_FLASH 0x1e000000
#define AR531X_UART0 0xbc000003 /* UART MMR */
/*
* AR531X_NUM_ENET_MAC defines the number of ethernet MACs that
* should be considered available. The AR5312 supports 2 enet MACS,
* even though many reference boards only actually use 1 of them
* (i.e. Only MAC 0 is actually connected to an enet PHY or PHY switch.
* The AR2312 supports 1 enet MAC.
*/
#define AR531X_NUM_ENET_MAC 2
/*
* Need these defines to determine true number of ethernet MACs
*/
#define AR5212_AR5312_REV2 0x0052 /* AR5312 WMAC (AP31) */
#define AR5212_AR5312_REV7 0x0057 /* AR5312 WMAC (AP30-040) */
#define AR5212_AR2313_REV8 0x0058 /* AR2313 WMAC (AP43-030) */
#define AR531X_RADIO_MASK_OFF 0xc8
#define AR531X_RADIO0_MASK 0x0003
#define AR531X_RADIO1_MASK 0x000c
#define AR531X_RADIO1_S 2
/*
* AR531X_NUM_WMAC defines the number of Wireless MACs that\
* should be considered available.
*/
#define AR531X_NUM_WMAC 2
/* Reset/Timer Block Address Map */
#define AR531X_RESETTMR (AR531X_APBBASE + 0x3000)
#define AR531X_TIMER (AR531X_RESETTMR + 0x0000) /* countdown timer */
#define AR531X_WD_CTRL (AR531X_RESETTMR + 0x0008) /* watchdog cntrl */
#define AR531X_WD_TIMER (AR531X_RESETTMR + 0x000c) /* watchdog timer */
#define AR531X_ISR (AR531X_RESETTMR + 0x0010) /* Intr Status Reg */
#define AR531X_IMR (AR531X_RESETTMR + 0x0014) /* Intr Mask Reg */
#define AR531X_RESET (AR531X_RESETTMR + 0x0020)
#define AR5312_CLOCKCTL1 (AR531X_RESETTMR + 0x0064)
#define AR5312_SCRATCH (AR531X_RESETTMR + 0x006c)
#define AR531X_PROCADDR (AR531X_RESETTMR + 0x0070)
#define AR531X_PROC1 (AR531X_RESETTMR + 0x0074)
#define AR531X_DMAADDR (AR531X_RESETTMR + 0x0078)
#define AR531X_DMA1 (AR531X_RESETTMR + 0x007c)
#define AR531X_ENABLE (AR531X_RESETTMR + 0x0080) /* interface enb */
#define AR531X_REV (AR531X_RESETTMR + 0x0090) /* revision */
/* AR531X_WD_CTRL register bit field definitions */
#define AR531X_WD_CTRL_IGNORE_EXPIRATION 0x0000
#define AR531X_WD_CTRL_NMI 0x0001
#define AR531X_WD_CTRL_RESET 0x0002
/* AR531X_ISR register bit field definitions */
#define AR531X_ISR_NONE 0x0000
#define AR531X_ISR_TIMER 0x0001
#define AR531X_ISR_AHBPROC 0x0002
#define AR531X_ISR_AHBDMA 0x0004
#define AR531X_ISR_GPIO 0x0008
#define AR531X_ISR_UART0 0x0010
#define AR531X_ISR_UART0DMA 0x0020
#define AR531X_ISR_WD 0x0040
#define AR531X_ISR_LOCAL 0x0080
/* AR531X_RESET register bit field definitions */
#define AR531X_RESET_SYSTEM 0x00000001 /* cold reset full system */
#define AR531X_RESET_PROC 0x00000002 /* cold reset MIPS core */
#define AR531X_RESET_WLAN0 0x00000004 /* cold reset WLAN MAC and BB */
#define AR531X_RESET_EPHY0 0x00000008 /* cold reset ENET0 phy */
#define AR531X_RESET_EPHY1 0x00000010 /* cold reset ENET1 phy */
#define AR531X_RESET_ENET0 0x00000020 /* cold reset ENET0 mac */
#define AR531X_RESET_ENET1 0x00000040 /* cold reset ENET1 mac */
#define AR531X_RESET_UART0 0x00000100 /* cold reset UART0 (high speed) */
#define AR531X_RESET_WLAN1 0x00000200 /* cold reset WLAN MAC/BB */
#define AR531X_RESET_APB 0x00000400 /* cold reset APB (ar5312) */
#define AR531X_RESET_WARM_PROC 0x00001000 /* warm reset MIPS core */
#define AR531X_RESET_WARM_WLAN0_MAC 0x00002000 /* warm reset WLAN0 MAC */
#define AR531X_RESET_WARM_WLAN0_BB 0x00004000 /* warm reset WLAN0 BaseBand */
#define AR531X_RESET_NMI 0x00010000 /* send an NMI to the processor */
#define AR531X_RESET_WARM_WLAN1_MAC 0x00020000 /* warm reset WLAN1 mac */
#define AR531X_RESET_WARM_WLAN1_BB 0x00040000 /* warm reset WLAN1 baseband */
#define AR531X_RESET_LOCAL_BUS 0x00080000 /* reset local bus */
#define AR531X_RESET_WDOG 0x00100000 /* last reset was a watchdog */
#define AR531X_RESET_WMAC0_BITS \
AR531X_RESET_WLAN0 |\
AR531X_RESET_WARM_WLAN0_MAC |\
AR531X_RESET_WARM_WLAN0_BB
#define AR531X_RESERT_WMAC1_BITS \
AR531X_RESET_WLAN1 |\
AR531X_RESET_WARM_WLAN1_MAC |\
AR531X_RESET_WARM_WLAN1_BB
/* AR5312_CLOCKCTL1 register bit field definitions */
#define AR5312_CLOCKCTL1_PREDIVIDE_MASK 0x00000030
#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT 4
#define AR5312_CLOCKCTL1_MULTIPLIER_MASK 0x00001f00
#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT 8
#define AR5312_CLOCKCTL1_DOUBLER_MASK 0x00010000
/* Valid for AR5312 and AR2312 */
#define AR5312_CLOCKCTL1_PREDIVIDE_MASK 0x00000030
#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT 4
#define AR5312_CLOCKCTL1_MULTIPLIER_MASK 0x00001f00
#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT 8
#define AR5312_CLOCKCTL1_DOUBLER_MASK 0x00010000
/* Valid for AR2313 */
#define AR2313_CLOCKCTL1_PREDIVIDE_MASK 0x00003000
#define AR2313_CLOCKCTL1_PREDIVIDE_SHIFT 12
#define AR2313_CLOCKCTL1_MULTIPLIER_MASK 0x001f0000
#define AR2313_CLOCKCTL1_MULTIPLIER_SHIFT 16
#define AR2313_CLOCKCTL1_DOUBLER_MASK 0x00000000
/* AR531X_ENABLE register bit field definitions */
#define AR531X_ENABLE_WLAN0 0x0001
#define AR531X_ENABLE_ENET0 0x0002
#define AR531X_ENABLE_ENET1 0x0004
#define AR531X_ENABLE_UART_AND_WLAN1_PIO 0x0008 /* UART, and WLAN1 PIOs */
#define AR531X_ENABLE_WLAN1_DMA 0x0010 /* WLAN1 DMAs */
#define AR531X_ENABLE_WLAN1 \
(AR531X_ENABLE_UART_AND_WLAN1_PIO | AR531X_ENABLE_WLAN1_DMA)
/* AR531X_REV register bit field definitions */
#define AR531X_REV_WMAC_MAJ 0xf000
#define AR531X_REV_WMAC_MAJ_S 12
#define AR531X_REV_WMAC_MIN 0x0f00
#define AR531X_REV_WMAC_MIN_S 8
#define AR531X_REV_MAJ 0x00f0
#define AR531X_REV_MAJ_S 4
#define AR531X_REV_MIN 0x000f
#define AR531X_REV_MIN_S 0
#define AR531X_REV_CHIP (REV_MAJ|REV_MIN)
/* Major revision numbers, bits 7..4 of Revision ID register */
#define AR531X_REV_MAJ_AR5312 0x4
#define AR531X_REV_MAJ_AR2313 0x5
/* Minor revision numbers, bits 3..0 of Revision ID register */
#define AR5312_REV_MIN_DUAL 0x0 /* Dual WLAN version */
#define AR5312_REV_MIN_SINGLE 0x1 /* Single WLAN version */
/* AR531X_FLASHCTL register bit field definitions */
#define FLASHCTL_IDCY 0x0000000f /* Idle cycle turn around time */
#define FLASHCTL_IDCY_S 0
#define FLASHCTL_WST1 0x000003e0 /* Wait state 1 */
#define FLASHCTL_WST1_S 5
#define FLASHCTL_RBLE 0x00000400 /* Read byte lane enable */
#define FLASHCTL_WST2 0x0000f800 /* Wait state 2 */
#define FLASHCTL_WST2_S 11
#define FLASHCTL_AC 0x00070000 /* Flash address check (added) */
#define FLASHCTL_AC_S 16
#define FLASHCTL_AC_128K 0x00000000
#define FLASHCTL_AC_256K 0x00010000
#define FLASHCTL_AC_512K 0x00020000
#define FLASHCTL_AC_1M 0x00030000
#define FLASHCTL_AC_2M 0x00040000
#define FLASHCTL_AC_4M 0x00050000
#define FLASHCTL_AC_8M 0x00060000
#define FLASHCTL_AC_RES 0x00070000 /* 16MB is not supported */
#define FLASHCTL_E 0x00080000 /* Flash bank enable (added) */
#define FLASHCTL_BUSERR 0x01000000 /* Bus transfer error status flag */
#define FLASHCTL_WPERR 0x02000000 /* Write protect error status flag */
#define FLASHCTL_WP 0x04000000 /* Write protect */
#define FLASHCTL_BM 0x08000000 /* Burst mode */
#define FLASHCTL_MW 0x30000000 /* Memory width */
#define FLASHCTL_MWx8 0x00000000 /* Memory width x8 */
#define FLASHCTL_MWx16 0x10000000 /* Memory width x16 */
#define FLASHCTL_MWx32 0x20000000 /* Memory width x32 (not supported) */
#define FLASHCTL_ATNR 0x00000000 /* Access type == no retry */
#define FLASHCTL_ATR 0x80000000 /* Access type == retry every */
#define FLASHCTL_ATR4 0xc0000000 /* Access type == retry every 4 */
/* ARM Flash Controller -- 3 flash banks with either x8 or x16 devices. */
#define AR531X_FLASHCTL0 (AR531X_FLASHCTL + 0x00)
#define AR531X_FLASHCTL1 (AR531X_FLASHCTL + 0x04)
#define AR531X_FLASHCTL2 (AR531X_FLASHCTL + 0x08)
/* ARM SDRAM Controller -- just enough to determine memory size */
#define AR531X_MEM_CFG1 (AR531X_SDRAMCTL + 0x04)
#define MEM_CFG1_AC0 0x00000700 /* bank 0: SDRAM addr check (added) */
#define MEM_CFG1_AC0_S 8
#define MEM_CFG1_AC1 0x00007000 /* bank 1: SDRAM addr check (added) */
#define MEM_CFG1_AC1_S 12
/* GPIO Address Map */
#define AR531X_GPIO (AR531X_APBBASE + 0x2000)
#define AR531X_GPIO_DO (AR531X_GPIO + 0x00) /* output register */
#define AR531X_GPIO_DI (AR531X_GPIO + 0x04) /* intput register */
#define AR531X_GPIO_CR (AR531X_GPIO + 0x08) /* control register */
/* GPIO Control Register bit field definitions */
#define AR531X_GPIO_CR_M(x) (1 << (x)) /* mask for i/o */
#define AR531X_GPIO_CR_O(x) (0 << (x)) /* mask for output */
#define AR531X_GPIO_CR_I(x) (1 << (x)) /* mask for input */
#define AR531X_GPIO_CR_INT(x) (1 << ((x)+8)) /* mask for interrupt */
#define AR531X_GPIO_CR_UART(x) (1 << ((x)+16)) /* uart multiplex */
#endif

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target/linux/atheros-2.6/files/arch/mips/atheros/ar5315.c
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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
* Copyright (C) 2006 FON Technology, SL.
* Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
*/
/*
* Platform devices for Atheros SoCs
*/
#include <linux/autoconf.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/reboot.h>
#include <asm/bootinfo.h>
#include <asm/reboot.h>
#include <asm/time.h>
#include <asm/irq.h>
#include <asm/io.h>
#include "ar531x.h"
#define AR531X_IRQ_MISC_INTRS MIPS_CPU_IRQ_BASE+2 /* C0_CAUSE: 0x0400 */
#define AR531X_IRQ_WLAN0_INTRS MIPS_CPU_IRQ_BASE+3 /* C0_CAUSE: 0x0800 */
#define AR531X_IRQ_ENET0_INTRS MIPS_CPU_IRQ_BASE+4 /* C0_CAUSE: 0x1000 */
#define AR531X_IRQ_LCBUS_PCI MIPS_CPU_IRQ_BASE+5 /* C0_CAUSE: 0x2000 */
#define AR531X_IRQ_WLAN0_POLL MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */
static struct resource ar5315_eth_res[] = {
{
.name = "eth_membase",
.flags = IORESOURCE_MEM,
.start = AR5315_ENET0,
.end = AR5315_ENET0 + 0x2000,
},
{
.name = "eth_irq",
.flags = IORESOURCE_IRQ,
.start = AR531X_IRQ_ENET0_INTRS,
.end = AR531X_IRQ_ENET0_INTRS,
},
};
static struct ar531x_eth ar5315_eth_data = {
.phy = 1,
.mac = 0,
.reset_base = AR5315_RESET,
.reset_mac = AR5315_RESET_ENET0,
.reset_phy = AR5315_RESET_EPHY0,
};
static struct platform_device ar5315_eth = {
.id = 0,
.name = "ar531x-eth",
.dev.platform_data = &ar5315_eth_data,
.resource = ar5315_eth_res,
.num_resources = ARRAY_SIZE(ar5315_eth_res)
};
static struct platform_device ar5315_wmac = {
.id = 0,
.name = "ar531x-wmac",
/* FIXME: add resources */
};
static struct resource ar5315_spiflash_res[] = {
{
.name = "flash_base",
.flags = IORESOURCE_MEM,
.start = KSEG1ADDR(AR5315_SPI_READ),
.end = KSEG1ADDR(AR5315_SPI_READ) + 0x800000,
},
{
.name = "flash_regs",
.flags = IORESOURCE_MEM,
.start = 0x11300000,
.end = 0x11300012,
},
};
static struct platform_device ar5315_spiflash = {
.id = 0,
.name = "spiflash",
.resource = ar5315_spiflash_res,
.num_resources = ARRAY_SIZE(ar5315_spiflash_res)
};
static __initdata struct platform_device *ar5315_devs[4];
static void *flash_regs;
static inline __u32 spiflash_regread32(int reg)
{
volatile __u32 *data = (__u32 *)(flash_regs + reg);
return (*data);
}
static inline void spiflash_regwrite32(int reg, __u32 data)
{
volatile __u32 *addr = (__u32 *)(flash_regs + reg);
*addr = data;
}
#define SPI_FLASH_CTL 0x00
#define SPI_FLASH_OPCODE 0x04
#define SPI_FLASH_DATA 0x08
static __u8 spiflash_probe(void)
{
__u32 reg;
do {
reg = spiflash_regread32(SPI_FLASH_CTL);
} while (reg & SPI_CTL_BUSY);
spiflash_regwrite32(SPI_FLASH_OPCODE, 0xab);
reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | 4 |
(1 << 4) | SPI_CTL_START;
spiflash_regwrite32(SPI_FLASH_CTL, reg);
do {
reg = spiflash_regread32(SPI_FLASH_CTL);
} while (reg & SPI_CTL_BUSY);
reg = (__u32) spiflash_regread32(SPI_FLASH_DATA);
reg &= 0xff;
return (u8) reg;
}
#define STM_8MBIT_SIGNATURE 0x13
#define STM_16MBIT_SIGNATURE 0x14
#define STM_32MBIT_SIGNATURE 0x15
#define STM_64MBIT_SIGNATURE 0x16
static char __init *ar5315_flash_limit(void)
{
u8 sig;
u32 flash_size = 0;
/* probe the flash chip size */
flash_regs = ioremap_nocache(ar5315_spiflash_res[1].start, ar5315_spiflash_res[1].end - ar5315_spiflash_res[1].start);
sig = spiflash_probe();
iounmap(flash_regs);
switch(sig) {
case STM_8MBIT_SIGNATURE:
flash_size = 0x00100000;
break;
case STM_16MBIT_SIGNATURE:
flash_size = 0x00200000;
break;
case STM_32MBIT_SIGNATURE:
flash_size = 0x00400000;
break;
case STM_64MBIT_SIGNATURE:
flash_size = 0x00800000;
break;
}
ar5315_spiflash_res[0].end = ar5315_spiflash_res[0].start + flash_size;
return (char *) ar5315_spiflash_res[0].end;
}
int __init ar5315_init_devices(void)
{
struct ar531x_config *config;
int dev = 0;
if (mips_machtype != MACH_ATHEROS_AR5315)
return 0;
ar531x_find_config(ar5315_flash_limit());
config = (struct ar531x_config *) kzalloc(sizeof(struct ar531x_config), GFP_KERNEL);
config->board = board_config;
config->radio = radio_config;
config->unit = 0;
config->tag = (u_int16_t) (sysRegRead(AR5315_SREV) & REV_CHIP);
ar5315_eth_data.board_config = board_config;
ar5315_wmac.dev.platform_data = config;
ar5315_devs[dev++] = &ar5315_eth;
ar5315_devs[dev++] = &ar5315_wmac;
ar5315_devs[dev++] = &ar5315_spiflash;
return platform_add_devices(ar5315_devs, dev);
}
/*
* Called when an interrupt is received, this function
* determines exactly which interrupt it was, and it
* invokes the appropriate handler.
*
* Implicitly, we also define interrupt priority by
* choosing which to dispatch first.
*/
asmlinkage void ar5315_irq_dispatch(void)
{
int pending = read_c0_status() & read_c0_cause();
if (pending & CAUSEF_IP3)
do_IRQ(AR531X_IRQ_WLAN0_INTRS);
else if (pending & CAUSEF_IP4)
do_IRQ(AR531X_IRQ_ENET0_INTRS);
else if (pending & CAUSEF_IP2) {
unsigned int ar531x_misc_intrs = sysRegRead(AR5315_ISR) & sysRegRead(AR5315_IMR);
if (ar531x_misc_intrs & AR5315_ISR_TIMER)
do_IRQ(AR531X_MISC_IRQ_TIMER);
else if (ar531x_misc_intrs & AR5315_ISR_AHB)
do_IRQ(AR531X_MISC_IRQ_AHB_PROC);
else if (ar531x_misc_intrs & AR5315_ISR_GPIO) {
sysRegWrite(AR5315_ISR, sysRegRead(AR5315_IMR) | ~AR5315_ISR_GPIO);
} else if (ar531x_misc_intrs & AR5315_ISR_UART0)
do_IRQ(AR531X_MISC_IRQ_UART0);
else if (ar531x_misc_intrs & AR5315_ISR_WD)
do_IRQ(AR531X_MISC_IRQ_WATCHDOG);
else
do_IRQ(AR531X_MISC_IRQ_NONE);
} else if (pending & CAUSEF_IP7)
do_IRQ(AR531X_IRQ_CPU_CLOCK);
else
do_IRQ(AR531X_IRQ_NONE);
}
static void ar5315_halt(void)
{
while (1);
}
static void ar5315_power_off(void)
{
ar5315_halt();
}
static void ar5315_restart(char *command)
{
unsigned int reg;
for(;;) {
/* reset the system */
sysRegWrite(AR5315_COLD_RESET,AR5317_RESET_SYSTEM);
/*
* Cold reset does not work on the AR2315/6, use the GPIO reset bits a workaround.
*/
reg = sysRegRead(AR5315_GPIO_DO);
reg &= ~(1 << AR5315_RESET_GPIO);
sysRegWrite(AR5315_GPIO_DO, reg);
(void)sysRegRead(AR5315_GPIO_DO); /* flush write to hardware */
}
}
/*
* This table is indexed by bits 5..4 of the CLOCKCTL1 register
* to determine the predevisor value.
*/
static int __initdata CLOCKCTL1_PREDIVIDE_TABLE[4] = {
1,
2,
4,
5
};
static int __initdata PLLC_DIVIDE_TABLE[5] = {
2,
3,
4,
6,
3
};
static unsigned int __init
ar5315_sys_clk(unsigned int clockCtl)
{
unsigned int pllcCtrl,cpuDiv;
unsigned int pllcOut,refdiv,fdiv,divby2;
unsigned int clkDiv;
pllcCtrl = sysRegRead(AR5315_PLLC_CTL);
refdiv = (pllcCtrl & PLLC_REF_DIV_M) >> PLLC_REF_DIV_S;
refdiv = CLOCKCTL1_PREDIVIDE_TABLE[refdiv];
fdiv = (pllcCtrl & PLLC_FDBACK_DIV_M) >> PLLC_FDBACK_DIV_S;
divby2 = (pllcCtrl & PLLC_ADD_FDBACK_DIV_M) >> PLLC_ADD_FDBACK_DIV_S;
divby2 += 1;
pllcOut = (40000000/refdiv)*(2*divby2)*fdiv;
/* clkm input selected */
switch(clockCtl & CPUCLK_CLK_SEL_M) {
case 0:
case 1:
clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKM_DIV_M) >> PLLC_CLKM_DIV_S];
break;
case 2:
clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKC_DIV_M) >> PLLC_CLKC_DIV_S];
break;
default:
pllcOut = 40000000;
clkDiv = 1;
break;
}
cpuDiv = (clockCtl & CPUCLK_CLK_DIV_M) >> CPUCLK_CLK_DIV_S;
cpuDiv = cpuDiv * 2 ?: 1;
return (pllcOut/(clkDiv * cpuDiv));
}
static inline unsigned int ar5315_cpu_frequency(void)
{
return ar5315_sys_clk(sysRegRead(AR5315_CPUCLK));
}
static inline unsigned int ar5315_apb_frequency(void)
{
return ar5315_sys_clk(sysRegRead(AR5315_AMBACLK));
}
static void __init ar5315_time_init(void)
{
mips_hpt_frequency = ar5315_cpu_frequency() / 2;
}
/* Enable the specified AR531X_MISC_IRQ interrupt */
static void
ar5315_misc_intr_enable(unsigned int irq)
{
unsigned int imr;
imr = sysRegRead(AR5315_IMR);
switch(irq)
{
case AR531X_MISC_IRQ_TIMER:
imr |= AR5315_ISR_TIMER;
break;
case AR531X_MISC_IRQ_AHB_PROC:
imr |= AR5315_ISR_AHB;
break;
case AR531X_MISC_IRQ_AHB_DMA:
imr |= 0/* ?? */;
break;
case AR531X_MISC_IRQ_GPIO:
imr |= AR5315_ISR_GPIO;
break;
case AR531X_MISC_IRQ_UART0:
imr |= AR5315_ISR_UART0;
break;
case AR531X_MISC_IRQ_WATCHDOG:
imr |= AR5315_ISR_WD;
break;
case AR531X_MISC_IRQ_LOCAL:
imr |= 0/* ?? */;
break;
}
sysRegWrite(AR5315_IMR, imr);
imr=sysRegRead(AR5315_IMR); /* flush write buffer */
//printk("enable Interrupt irq 0x%x imr 0x%x \n",irq,imr);
}
/* Disable the specified AR531X_MISC_IRQ interrupt */
static void
ar5315_misc_intr_disable(unsigned int irq)
{
unsigned int imr;
imr = sysRegRead(AR5315_IMR);
switch(irq)
{
case AR531X_MISC_IRQ_TIMER:
imr &= (~AR5315_ISR_TIMER);
break;
case AR531X_MISC_IRQ_AHB_PROC:
imr &= (~AR5315_ISR_AHB);
break;
case AR531X_MISC_IRQ_AHB_DMA:
imr &= 0/* ?? */;
break;
case AR531X_MISC_IRQ_GPIO:
imr &= ~AR5315_ISR_GPIO;
break;
case AR531X_MISC_IRQ_UART0:
imr &= (~AR5315_ISR_UART0);
break;
case AR531X_MISC_IRQ_WATCHDOG:
imr &= (~AR5315_ISR_WD);
break;
case AR531X_MISC_IRQ_LOCAL:
imr &= ~0/* ?? */;
break;
}
sysRegWrite(AR5315_IMR, imr);
sysRegRead(AR5315_IMR); /* flush write buffer */
}
/* Turn on the specified AR531X_MISC_IRQ interrupt */
static unsigned int
ar5315_misc_intr_startup(unsigned int irq)
{
ar5315_misc_intr_enable(irq);
return 0;
}
/* Turn off the specified AR531X_MISC_IRQ interrupt */
static void
ar5315_misc_intr_shutdown(unsigned int irq)
{
ar5315_misc_intr_disable(irq);
}
static void
ar5315_misc_intr_ack(unsigned int irq)
{
ar5315_misc_intr_disable(irq);
}
static void
ar5315_misc_intr_end(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
ar5315_misc_intr_enable(irq);
}
static struct irq_chip ar5315_misc_intr_controller = {
.typename = "AR5315 misc",
.startup = ar5315_misc_intr_startup,
.shutdown = ar5315_misc_intr_shutdown,
.enable = ar5315_misc_intr_enable,
.disable = ar5315_misc_intr_disable,
.ack = ar5315_misc_intr_ack,
.end = ar5315_misc_intr_end,
};
static irqreturn_t ar5315_ahb_proc_handler(int cpl, void *dev_id)
{
sysRegWrite(AR5315_AHB_ERR0,AHB_ERROR_DET);
sysRegRead(AR5315_AHB_ERR1);
printk("AHB fatal error\n");
machine_restart("AHB error"); /* Catastrophic failure */
return IRQ_HANDLED;
}
static struct irqaction ar5315_ahb_proc_interrupt = {
.handler = ar5315_ahb_proc_handler,
.flags = SA_INTERRUPT,
.name = "ar5315_ahb_proc_interrupt",
};
static struct irqaction cascade = {
.handler = no_action,
.flags = SA_INTERRUPT,
.name = "cascade",
};
void ar5315_misc_intr_init(int irq_base)
{
int i;
for (i = irq_base; i < irq_base + AR531X_MISC_IRQ_COUNT; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].chip = &ar5315_misc_intr_controller;
}
setup_irq(AR531X_MISC_IRQ_AHB_PROC, &ar5315_ahb_proc_interrupt);
setup_irq(AR531X_IRQ_MISC_INTRS, &cascade);
}
void __init ar5315_plat_setup(void)
{
unsigned int config = read_c0_config();
/* Clear any lingering AHB errors */
write_c0_config(config & ~0x3);
sysRegWrite(AR5315_AHB_ERR0,AHB_ERROR_DET);
sysRegRead(AR5315_AHB_ERR1);
sysRegWrite(AR5315_WDC, WDC_IGNORE_EXPIRATION);
board_time_init = ar5315_time_init;
_machine_restart = ar5315_restart;
_machine_halt = ar5315_halt;
pm_power_off = ar5315_power_off;
serial_setup(KSEG1ADDR(AR5315_UART0), ar5315_apb_frequency());
}
arch_initcall(ar5315_init_devices);

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target/linux/atheros-2.6/files/arch/mips/atheros/ar5315.h
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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
* Copyright (C) 2006 FON Technology, SL.
* Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
*/
#ifndef AR5315_H
#define AR5315_H
/*
* Address map
*/
#define AR5315_SDRAM0 0x00000000 /* DRAM */
#define AR5315_SPI_READ 0x08000000 /* SPI FLASH */
#define AR5315_WLAN0 0xB0000000 /* Wireless MMR */
#define AR5315_PCI 0xB0100000 /* PCI MMR */
#define AR5315_SDRAMCTL 0xB0300000 /* SDRAM MMR */
#define AR5315_LOCAL 0xB0400000 /* LOCAL BUS MMR */
#define AR5315_ENET0 0xB0500000 /* ETHERNET MMR */
#define AR5315_DSLBASE 0xB1000000 /* RESET CONTROL MMR */
#define AR5315_UART0 0xB1100003 /* UART MMR */
#define AR5315_SPI 0xB1300000 /* SPI FLASH MMR */
#define AR5315_FLASHBT 0xBfc00000 /* ro boot alias to FLASH */
#define AR5315_RAM1 0x40000000 /* ram alias */
#define AR5315_PCIEXT 0x80000000 /* pci external */
#define AR5315_RAM2 0xc0000000 /* ram alias */
#define AR5315_RAM3 0xe0000000 /* ram alias */
/*
* Reset Register
*/
#define AR5315_COLD_RESET (AR5315_DSLBASE + 0x0000)
/* Cold Reset */
#define RESET_COLD_AHB 0x00000001
#define RESET_COLD_APB 0x00000002
#define RESET_COLD_CPU 0x00000004
#define RESET_COLD_CPUWARM 0x00000008
#define RESET_SYSTEM (RESET_COLD_CPU | RESET_COLD_APB | RESET_COLD_AHB) /* full system */
#define AR5317_RESET_SYSTEM 0x00000010
/* Warm Reset */
#define AR5315_RESET (AR5315_DSLBASE + 0x0004)
#define AR5315_RESET_WARM_WLAN0_MAC 0x00000001 /* warm reset WLAN0 MAC */
#define AR5315_RESET_WARM_WLAN0_BB 0x00000002 /* warm reset WLAN0 BaseBand */
#define AR5315_RESET_MPEGTS_RSVD 0x00000004 /* warm reset MPEG-TS */
#define AR5315_RESET_PCIDMA 0x00000008 /* warm reset PCI ahb/dma */
#define AR5315_RESET_MEMCTL 0x00000010 /* warm reset memory controller */
#define AR5315_RESET_LOCAL 0x00000020 /* warm reset local bus */
#define AR5315_RESET_I2C_RSVD 0x00000040 /* warm reset I2C bus */
#define AR5315_RESET_SPI 0x00000080 /* warm reset SPI interface */
#define AR5315_RESET_UART0 0x00000100 /* warm reset UART0 */
#define AR5315_RESET_IR_RSVD 0x00000200 /* warm reset IR interface */
#define AR5315_RESET_EPHY0 0x00000400 /* cold reset ENET0 phy */
#define AR5315_RESET_ENET0 0x00000800 /* cold reset ENET0 mac */
/*
* AHB master arbitration control
*/
#define AR5315_AHB_ARB_CTL (AR5315_DSLBASE + 0x0008)
#define ARB_CPU 0x00000001 /* CPU, default */
#define ARB_WLAN 0x00000002 /* WLAN */
#define ARB_MPEGTS_RSVD 0x00000004 /* MPEG-TS */
#define ARB_LOCAL 0x00000008 /* LOCAL */
#define ARB_PCI 0x00000010 /* PCI */
#define ARB_ETHERNET 0x00000020 /* Ethernet */
#define ARB_RETRY 0x00000100 /* retry policy, debug only */
/*
* Config Register
*/
#define AR5315_ENDIAN_CTL (AR5315_DSLBASE + 0x000c)
#define CONFIG_AHB 0x00000001 /* EC - AHB bridge endianess */
#define CONFIG_WLAN 0x00000002 /* WLAN byteswap */
#define CONFIG_MPEGTS_RSVD 0x00000004 /* MPEG-TS byteswap */
#define CONFIG_PCI 0x00000008 /* PCI byteswap */
#define CONFIG_MEMCTL 0x00000010 /* Memory controller endianess */
#define CONFIG_LOCAL 0x00000020 /* Local bus byteswap */
#define CONFIG_ETHERNET 0x00000040 /* Ethernet byteswap */
#define CONFIG_MERGE 0x00000200 /* CPU write buffer merge */
#define CONFIG_CPU 0x00000400 /* CPU big endian */
#define CONFIG_PCIAHB 0x00000800
#define CONFIG_PCIAHB_BRIDGE 0x00001000
#define CONFIG_SPI 0x00008000 /* SPI byteswap */
#define CONFIG_CPU_DRAM 0x00010000
#define CONFIG_CPU_PCI 0x00020000
#define CONFIG_CPU_MMR 0x00040000
#define CONFIG_BIG 0x00000400
/*
* NMI control
*/
#define AR5315_NMI_CTL (AR5315_DSLBASE + 0x0010)
#define NMI_EN 1
/*
* Revision Register - Initial value is 0x3010 (WMAC 3.0, AR531X 1.0).
*/
#define AR5315_SREV (AR5315_DSLBASE + 0x0014)
#define REV_MAJ 0x00f0
#define REV_MAJ_S 4
#define REV_MIN 0x000f
#define REV_MIN_S 0
#define REV_CHIP (REV_MAJ|REV_MIN)
/*
* Interface Enable
*/
#define AR5315_IF_CTL (AR5315_DSLBASE + 0x0018)
#define IF_MASK 0x00000007
#define IF_DISABLED 0
#define IF_PCI 1
#define IF_TS_LOCAL 2
#define IF_ALL 3 /* only for emulation with separate pins */
#define IF_LOCAL_HOST 0x00000008
#define IF_PCI_HOST 0x00000010
#define IF_PCI_INTR 0x00000020
#define IF_PCI_CLK_MASK 0x00030000
#define IF_PCI_CLK_INPUT 0
#define IF_PCI_CLK_OUTPUT_LOW 1
#define IF_PCI_CLK_OUTPUT_CLK 2
#define IF_PCI_CLK_OUTPUT_HIGH 3
#define IF_PCI_CLK_SHIFT 16
/* Major revision numbers, bits 7..4 of Revision ID register */
#define REV_MAJ_AR5311 0x01
#define REV_MAJ_AR5312 0x04
#define REV_MAJ_AR5315 0x0B
/*
* APB Interrupt control
*/
#define AR5315_ISR (AR5315_DSLBASE + 0x0020)
#define AR5315_IMR (AR5315_DSLBASE + 0x0024)
#define AR5315_GISR (AR5315_DSLBASE + 0x0028)
#define AR5315_ISR_UART0 0x0001 /* high speed UART */
#define AR5315_ISR_I2C_RSVD 0x0002 /* I2C bus */
#define AR5315_ISR_SPI 0x0004 /* SPI bus */
#define AR5315_ISR_AHB 0x0008 /* AHB error */
#define AR5315_ISR_APB 0x0010 /* APB error */
#define AR5315_ISR_TIMER 0x0020 /* timer */
#define AR5315_ISR_GPIO 0x0040 /* GPIO */
#define AR5315_ISR_WD 0x0080 /* watchdog */
#define AR5315_ISR_IR_RSVD 0x0100 /* IR */
#define AR5315_GISR_MISC 0x0001
#define AR5315_GISR_WLAN0 0x0002
#define AR5315_GISR_MPEGTS_RSVD 0x0004
#define AR5315_GISR_LOCALPCI 0x0008
#define AR5315_GISR_WMACPOLL 0x0010
#define AR5315_GISR_TIMER 0x0020
#define AR5315_GISR_ETHERNET 0x0040
/*
* Interrupt routing from IO to the processor IP bits
* Define our inter mask and level
*/
#define AR5315_INTR_MISCIO SR_IBIT3
#define AR5315_INTR_WLAN0 SR_IBIT4
#define AR5315_INTR_ENET0 SR_IBIT5
#define AR5315_INTR_LOCALPCI SR_IBIT6
#define AR5315_INTR_WMACPOLL SR_IBIT7
#define AR5315_INTR_COMPARE SR_IBIT8
/*
* Timers
*/
#define AR5315_TIMER (AR5315_DSLBASE + 0x0030)
#define AR5315_RELOAD (AR5315_DSLBASE + 0x0034)
#define AR5315_WD (AR5315_DSLBASE + 0x0038)
#define AR5315_WDC (AR5315_DSLBASE + 0x003c)
#define WDC_RESET 0x00000002 /* reset on watchdog */
#define WDC_NMI 0x00000001 /* NMI on watchdog */
#define WDC_IGNORE_EXPIRATION 0x00000000
/*
* CPU Performance Counters
*/
#define AR5315_PERFCNT0 (AR5315_DSLBASE + 0x0048)
#define AR5315_PERFCNT1 (AR5315_DSLBASE + 0x004c)
#define PERF_DATAHIT 0x0001 /* Count Data Cache Hits */
#define PERF_DATAMISS 0x0002 /* Count Data Cache Misses */
#define PERF_INSTHIT 0x0004 /* Count Instruction Cache Hits */
#define PERF_INSTMISS 0x0008 /* Count Instruction Cache Misses */
#define PERF_ACTIVE 0x0010 /* Count Active Processor Cycles */
#define PERF_WBHIT 0x0020 /* Count CPU Write Buffer Hits */
#define PERF_WBMISS 0x0040 /* Count CPU Write Buffer Misses */
#define PERF_EB_ARDY 0x0001 /* Count EB_ARdy signal */
#define PERF_EB_AVALID 0x0002 /* Count EB_AValid signal */
#define PERF_EB_WDRDY 0x0004 /* Count EB_WDRdy signal */
#define PERF_EB_RDVAL 0x0008 /* Count EB_RdVal signal */
#define PERF_VRADDR 0x0010 /* Count valid read address cycles */
#define PERF_VWADDR 0x0020 /* Count valid write address cycles */
#define PERF_VWDATA 0x0040 /* Count valid write data cycles */
/*
* AHB Error Reporting.
*/
#define AR5315_AHB_ERR0 (AR5315_DSLBASE + 0x0050) /* error */
#define AR5315_AHB_ERR1 (AR5315_DSLBASE + 0x0054) /* haddr */
#define AR5315_AHB_ERR2 (AR5315_DSLBASE + 0x0058) /* hwdata */
#define AR5315_AHB_ERR3 (AR5315_DSLBASE + 0x005c) /* hrdata */
#define AR5315_AHB_ERR4 (AR5315_DSLBASE + 0x0060) /* status */
#define AHB_ERROR_DET 1 /* AHB Error has been detected, */
/* write 1 to clear all bits in ERR0 */
#define AHB_ERROR_OVR 2 /* AHB Error overflow has been detected */
#define AHB_ERROR_WDT 4 /* AHB Error due to wdt instead of hresp */
#define PROCERR_HMAST 0x0000000f
#define PROCERR_HMAST_DFLT 0
#define PROCERR_HMAST_WMAC 1
#define PROCERR_HMAST_ENET 2
#define PROCERR_HMAST_PCIENDPT 3
#define PROCERR_HMAST_LOCAL 4
#define PROCERR_HMAST_CPU 5
#define PROCERR_HMAST_PCITGT 6
#define PROCERR_HMAST_S 0
#define PROCERR_HWRITE 0x00000010
#define PROCERR_HSIZE 0x00000060
#define PROCERR_HSIZE_S 5
#define PROCERR_HTRANS 0x00000180
#define PROCERR_HTRANS_S 7
#define PROCERR_HBURST 0x00000e00
#define PROCERR_HBURST_S 9
/*
* Clock Control
*/
#define AR5315_PLLC_CTL (AR5315_DSLBASE + 0x0064)
#define AR5315_PLLV_CTL (AR5315_DSLBASE + 0x0068)
#define AR5315_CPUCLK (AR5315_DSLBASE + 0x006c)
#define AR5315_AMBACLK (AR5315_DSLBASE + 0x0070)
#define AR5315_SYNCCLK (AR5315_DSLBASE + 0x0074)
#define AR5315_DSL_SLEEP_CTL (AR5315_DSLBASE + 0x0080)
#define AR5315_DSL_SLEEP_DUR (AR5315_DSLBASE + 0x0084)
/* PLLc Control fields */
#define PLLC_REF_DIV_M 0x00000003
#define PLLC_REF_DIV_S 0
#define PLLC_FDBACK_DIV_M 0x0000007C
#define PLLC_FDBACK_DIV_S 2
#define PLLC_ADD_FDBACK_DIV_M 0x00000080
#define PLLC_ADD_FDBACK_DIV_S 7
#define PLLC_CLKC_DIV_M 0x0001c000
#define PLLC_CLKC_DIV_S 14
#define PLLC_CLKM_DIV_M 0x00700000
#define PLLC_CLKM_DIV_S 20
/* CPU CLK Control fields */
#define CPUCLK_CLK_SEL_M 0x00000003
#define CPUCLK_CLK_SEL_S 0
#define CPUCLK_CLK_DIV_M 0x0000000c
#define CPUCLK_CLK_DIV_S 2
/* AMBA CLK Control fields */
#define AMBACLK_CLK_SEL_M 0x00000003
#define AMBACLK_CLK_SEL_S 0
#define AMBACLK_CLK_DIV_M 0x0000000c
#define AMBACLK_CLK_DIV_S 2
#if defined(COBRA_EMUL)
#define AR5315_AMBA_CLOCK_RATE 20000000
#define AR5315_CPU_CLOCK_RATE 40000000
#else
#if defined(DEFAULT_PLL)
#define AR5315_AMBA_CLOCK_RATE 40000000
#define AR5315_CPU_CLOCK_RATE 40000000
#else
#define AR5315_AMBA_CLOCK_RATE 92000000
#define AR5315_CPU_CLOCK_RATE 184000000
#endif /* ! DEFAULT_PLL */
#endif /* ! COBRA_EMUL */
#define AR5315_UART_CLOCK_RATE AR5315_AMBA_CLOCK_RATE
#define AR5315_SDRAM_CLOCK_RATE AR5315_AMBA_CLOCK_RATE
/*
* The UART computes baud rate as:
* baud = clock / (16 * divisor)
* where divisor is specified as a High Byte (DLM) and a Low Byte (DLL).
*/
#define DESIRED_BAUD_RATE 38400
#define CLOCKCTL_UART0 0x0010 /* enable UART0 external clock */
/*
* Applicable "PCICFG" bits for WLAN(s). Assoc status and LED mode.
*/
#define ASSOC_STATUS_M 0x00000003
#define ASSOC_STATUS_NONE 0
#define ASSOC_STATUS_PENDING 1
#define ASSOC_STATUS_ASSOCIATED 2
#define LED_MODE_M 0x0000001c
#define LED_BLINK_THRESHOLD_M 0x000000e0
#define LED_SLOW_BLINK_MODE 0x00000100
/*
* GPIO
*/
#define AR5315_GPIO_DI (AR5315_DSLBASE + 0x0088)
#define AR5315_GPIO_DO (AR5315_DSLBASE + 0x0090)
#define AR5315_GPIO_CR (AR5315_DSLBASE + 0x0098)
#define AR5315_GPIO_INT (AR5315_DSLBASE + 0x00a0)
#define AR5315_GPIO_CR_M(x) (1 << (x)) /* mask for i/o */
#define AR5315_GPIO_CR_O(x) (1 << (x)) /* output */
#define AR5315_GPIO_CR_I(x) (0 << (x)) /* input */
#define AR5315_GPIO_INT_S(x,Y) ((x) << (8 * (Y))) /* interrupt enable */
#define AR5315_GPIO_INT_M(Y) ((0x3F) << (8 * (Y))) /* mask for int */
#define AR5315_GPIO_INT_LVL(x,Y) ((x) << (8 * (Y) + 6)) /* interrupt level */
#define AR5315_GPIO_INT_LVL_M(Y) ((0x3) << (8 * (Y) + 6)) /* mask for int level */
#define AR5315_RESET_GPIO 5
#define AR5315_NUM_GPIO 22
/*
* PCI Clock Control
*/
#define AR5315_PCICLK (AR5315_DSLBASE + 0x00a4)
#define PCICLK_INPUT_M 0x3
#define PCICLK_INPUT_S 0
#define PCICLK_PLLC_CLKM 0
#define PCICLK_PLLC_CLKM1 1
#define PCICLK_PLLC_CLKC 2
#define PCICLK_REF_CLK 3
#define PCICLK_DIV_M 0xc
#define PCICLK_DIV_S 2
#define PCICLK_IN_FREQ 0
#define PCICLK_IN_FREQ_DIV_6 1
#define PCICLK_IN_FREQ_DIV_8 2
#define PCICLK_IN_FREQ_DIV_10 3
/*
* Observation Control Register
*/
#define AR5315_OCR (AR5315_DSLBASE + 0x00b0)
#define OCR_GPIO0_IRIN 0x0040
#define OCR_GPIO1_IROUT 0x0080
#define OCR_GPIO3_RXCLR 0x0200
/*
* General Clock Control
*/
#define AR5315_MISCCLK (AR5315_DSLBASE + 0x00b4)
#define MISCCLK_PLLBYPASS_EN 0x00000001
#define MISCCLK_PROCREFCLK 0x00000002
/*
* SDRAM Controller
* - No read or write buffers are included.
*/
#define AR5315_MEM_CFG (AR5315_SDRAMCTL + 0x00)
#define AR5315_MEM_CTRL (AR5315_SDRAMCTL + 0x0c)
#define AR5315_MEM_REF (AR5315_SDRAMCTL + 0x10)
#define SDRAM_DATA_WIDTH_M 0x00006000
#define SDRAM_DATA_WIDTH_S 13
#define SDRAM_COL_WIDTH_M 0x00001E00
#define SDRAM_COL_WIDTH_S 9
#define SDRAM_ROW_WIDTH_M 0x000001E0
#define SDRAM_ROW_WIDTH_S 5
#define SDRAM_BANKADDR_BITS_M 0x00000018
#define SDRAM_BANKADDR_BITS_S 3
/*
* SPI Flash Interface Registers
*/
#define AR5315_SPI_CTL (AR5315_SPI + 0x00)
#define AR5315_SPI_OPCODE (AR5315_SPI + 0x04)
#define AR5315_SPI_DATA (AR5315_SPI + 0x08)
#define SPI_CTL_START 0x00000100
#define SPI_CTL_BUSY 0x00010000
#define SPI_CTL_TXCNT_MASK 0x0000000f
#define SPI_CTL_RXCNT_MASK 0x000000f0
#define SPI_CTL_TX_RX_CNT_MASK 0x000000ff
#define SPI_CTL_SIZE_MASK 0x00060000
#define SPI_CTL_CLK_SEL_MASK 0x03000000
#define SPI_OPCODE_MASK 0x000000ff
/*
* PCI-MAC Configuration registers
*/
#define PCI_MAC_RC (AR5315_PCI + 0x4000)
#define PCI_MAC_SCR (AR5315_PCI + 0x4004)
#define PCI_MAC_INTPEND (AR5315_PCI + 0x4008)
#define PCI_MAC_SFR (AR5315_PCI + 0x400C)
#define PCI_MAC_PCICFG (AR5315_PCI + 0x4010)
#define PCI_MAC_SREV (AR5315_PCI + 0x4020)
#define PCI_MAC_RC_MAC 0x00000001
#define PCI_MAC_RC_BB 0x00000002
#define PCI_MAC_SCR_SLMODE_M 0x00030000
#define PCI_MAC_SCR_SLMODE_S 16
#define PCI_MAC_SCR_SLM_FWAKE 0
#define PCI_MAC_SCR_SLM_FSLEEP 1
#define PCI_MAC_SCR_SLM_NORMAL 2
#define PCI_MAC_SFR_SLEEP 0x00000001
#define PCI_MAC_PCICFG_SPWR_DN 0x00010000
/*
* PCI Bus Interface Registers
*/
#define AR5315_PCI_1MS_REG (AR5315_PCI + 0x0008)
#define AR5315_PCI_1MS_MASK 0x3FFFF /* # of AHB clk cycles in 1ms */
#define AR5315_PCI_MISC_CONFIG (AR5315_PCI + 0x000c)
#define AR5315_PCIMISC_TXD_EN 0x00000001 /* Enable TXD for fragments */
#define AR5315_PCIMISC_CFG_SEL 0x00000002 /* mem or config cycles */
#define AR5315_PCIMISC_GIG_MASK 0x0000000C /* bits 31-30 for pci req */
#define AR5315_PCIMISC_RST_MODE 0x00000030
#define AR5315_PCIRST_INPUT 0x00000000 /* 4:5=0 rst is input */
#define AR5315_PCIRST_LOW 0x00000010 /* 4:5=1 rst to GND */
#define AR5315_PCIRST_HIGH 0x00000020 /* 4:5=2 rst to VDD */
#define AR5315_PCIGRANT_EN 0x00000000 /* 6:7=0 early grant en */
#define AR5315_PCIGRANT_FRAME 0x00000040 /* 6:7=1 grant waits 4 frame */
#define AR5315_PCIGRANT_IDLE 0x00000080 /* 6:7=2 grant waits 4 idle */
#define AR5315_PCIGRANT_GAP 0x00000000 /* 6:7=2 grant waits 4 idle */
#define AR5315_PCICACHE_DIS 0x00001000 /* PCI external access cache disable */
#define AR5315_PCI_OUT_TSTAMP (AR5315_PCI + 0x0010)
#define AR5315_PCI_UNCACHE_CFG (AR5315_PCI + 0x0014)
#define AR5315_PCI_IN_EN (AR5315_PCI + 0x0100)
#define AR5315_PCI_IN_EN0 0x01 /* Enable chain 0 */
#define AR5315_PCI_IN_EN1 0x02 /* Enable chain 1 */
#define AR5315_PCI_IN_EN2 0x04 /* Enable chain 2 */
#define AR5315_PCI_IN_EN3 0x08 /* Enable chain 3 */
#define AR5315_PCI_IN_DIS (AR5315_PCI + 0x0104)
#define AR5315_PCI_IN_DIS0 0x01 /* Disable chain 0 */
#define AR5315_PCI_IN_DIS1 0x02 /* Disable chain 1 */
#define AR5315_PCI_IN_DIS2 0x04 /* Disable chain 2 */
#define AR5315_PCI_IN_DIS3 0x08 /* Disable chain 3 */
#define AR5315_PCI_IN_PTR (AR5315_PCI + 0x0200)
#define AR5315_PCI_OUT_EN (AR5315_PCI + 0x0400)
#define AR5315_PCI_OUT_EN0 0x01 /* Enable chain 0 */
#define AR5315_PCI_OUT_DIS (AR5315_PCI + 0x0404)
#define AR5315_PCI_OUT_DIS0 0x01 /* Disable chain 0 */
#define AR5315_PCI_OUT_PTR (AR5315_PCI + 0x0408)
#define AR5315_PCI_INT_STATUS (AR5315_PCI + 0x0500) /* write one to clr */
#define AR5315_PCI_TXINT 0x00000001 /* Desc In Completed */
#define AR5315_PCI_TXOK 0x00000002 /* Desc In OK */
#define AR5315_PCI_TXERR 0x00000004 /* Desc In ERR */
#define AR5315_PCI_TXEOL 0x00000008 /* Desc In End-of-List */
#define AR5315_PCI_RXINT 0x00000010 /* Desc Out Completed */
#define AR5315_PCI_RXOK 0x00000020 /* Desc Out OK */
#define AR5315_PCI_RXERR 0x00000040 /* Desc Out ERR */
#define AR5315_PCI_RXEOL 0x00000080 /* Desc Out EOL */
#define AR5315_PCI_TXOOD 0x00000200 /* Desc In Out-of-Desc */
#define AR5315_PCI_MASK 0x0000FFFF /* Desc Mask */
#define AR5315_PCI_EXT_INT 0x02000000
#define AR5315_PCI_ABORT_INT 0x04000000
#define AR5315_PCI_INT_MASK (AR5315_PCI + 0x0504) /* same as INT_STATUS */
#define AR5315_PCI_INTEN_REG (AR5315_PCI + 0x0508)
#define AR5315_PCI_INT_DISABLE 0x00 /* disable pci interrupts */
#define AR5315_PCI_INT_ENABLE 0x01 /* enable pci interrupts */
#define AR5315_PCI_HOST_IN_EN (AR5315_PCI + 0x0800)
#define AR5315_PCI_HOST_IN_DIS (AR5315_PCI + 0x0804)
#define AR5315_PCI_HOST_IN_PTR (AR5315_PCI + 0x0810)
#define AR5315_PCI_HOST_OUT_EN (AR5315_PCI + 0x0900)
#define AR5315_PCI_HOST_OUT_DIS (AR5315_PCI + 0x0904)
#define AR5315_PCI_HOST_OUT_PTR (AR5315_PCI + 0x0908)
/*
* Local Bus Interface Registers
*/
#define AR5315_LB_CONFIG (AR5315_LOCAL + 0x0000)
#define AR5315_LBCONF_OE 0x00000001 /* =1 OE is low-true */
#define AR5315_LBCONF_CS0 0x00000002 /* =1 first CS is low-true */
#define AR5315_LBCONF_CS1 0x00000004 /* =1 2nd CS is low-true */
#define AR5315_LBCONF_RDY 0x00000008 /* =1 RDY is low-true */
#define AR5315_LBCONF_WE 0x00000010 /* =1 Write En is low-true */
#define AR5315_LBCONF_WAIT 0x00000020 /* =1 WAIT is low-true */
#define AR5315_LBCONF_ADS 0x00000040 /* =1 Adr Strobe is low-true */
#define AR5315_LBCONF_MOT 0x00000080 /* =0 Intel, =1 Motorola */
#define AR5315_LBCONF_8CS 0x00000100 /* =1 8 bits CS, 0= 16bits */
#define AR5315_LBCONF_8DS 0x00000200 /* =1 8 bits Data S, 0=16bits */
#define AR5315_LBCONF_ADS_EN 0x00000400 /* =1 Enable ADS */
#define AR5315_LBCONF_ADR_OE 0x00000800 /* =1 Adr cap on OE, WE or DS */
#define AR5315_LBCONF_ADDT_MUX 0x00001000 /* =1 Adr and Data share bus */
#define AR5315_LBCONF_DATA_OE 0x00002000 /* =1 Data cap on OE, WE, DS */
#define AR5315_LBCONF_16DATA 0x00004000 /* =1 Data is 16 bits wide */
#define AR5315_LBCONF_SWAPDT 0x00008000 /* =1 Byte swap data */
#define AR5315_LBCONF_SYNC 0x00010000 /* =1 Bus synchronous to clk */
#define AR5315_LBCONF_INT 0x00020000 /* =1 Intr is low true */
#define AR5315_LBCONF_INT_CTR0 0x00000000 /* GND high-Z, Vdd is high-Z */
#define AR5315_LBCONF_INT_CTR1 0x00040000 /* GND drive, Vdd is high-Z */
#define AR5315_LBCONF_INT_CTR2 0x00080000 /* GND high-Z, Vdd drive */
#define AR5315_LBCONF_INT_CTR3 0x000C0000 /* GND drive, Vdd drive */
#define AR5315_LBCONF_RDY_WAIT 0x00100000 /* =1 RDY is negative of WAIT */
#define AR5315_LBCONF_INT_PULSE 0x00200000 /* =1 Interrupt is a pulse */
#define AR5315_LBCONF_ENABLE 0x00400000 /* =1 Falcon respond to LB */
#define AR5315_LB_CLKSEL (AR5315_LOCAL + 0x0004)
#define AR5315_LBCLK_EXT 0x0001 /* use external clk for lb */
#define AR5315_LB_1MS (AR5315_LOCAL + 0x0008)
#define AR5315_LB1MS_MASK 0x3FFFF /* # of AHB clk cycles in 1ms */
#define AR5315_LB_MISCCFG (AR5315_LOCAL + 0x000C)
#define AR5315_LBM_TXD_EN 0x00000001 /* Enable TXD for fragments */
#define AR5315_LBM_RX_INTEN 0x00000002 /* Enable LB ints on RX ready */
#define AR5315_LBM_MBOXWR_INTEN 0x00000004 /* Enable LB ints on mbox wr */
#define AR5315_LBM_MBOXRD_INTEN 0x00000008 /* Enable LB ints on mbox rd */
#define AR5315_LMB_DESCSWAP_EN 0x00000010 /* Byte swap desc enable */
#define AR5315_LBM_TIMEOUT_MASK 0x00FFFF80
#define AR5315_LBM_TIMEOUT_SHFT 7
#define AR5315_LBM_PORTMUX 0x07000000
#define AR5315_LB_RXTSOFF (AR5315_LOCAL + 0x0010)
#define AR5315_LB_TX_CHAIN_EN (AR5315_LOCAL + 0x0100)
#define AR5315_LB_TXEN_0 0x01
#define AR5315_LB_TXEN_1 0x02
#define AR5315_LB_TXEN_2 0x04
#define AR5315_LB_TXEN_3 0x08
#define AR5315_LB_TX_CHAIN_DIS (AR5315_LOCAL + 0x0104)
#define AR5315_LB_TX_DESC_PTR (AR5315_LOCAL + 0x0200)
#define AR5315_LB_RX_CHAIN_EN (AR5315_LOCAL + 0x0400)
#define AR5315_LB_RXEN 0x01
#define AR5315_LB_RX_CHAIN_DIS (AR5315_LOCAL + 0x0404)
#define AR5315_LB_RX_DESC_PTR (AR5315_LOCAL + 0x0408)
#define AR5315_LB_INT_STATUS (AR5315_LOCAL + 0x0500)
#define AR5315_INT_TX_DESC 0x0001
#define AR5315_INT_TX_OK 0x0002
#define AR5315_INT_TX_ERR 0x0004
#define AR5315_INT_TX_EOF 0x0008
#define AR5315_INT_RX_DESC 0x0010
#define AR5315_INT_RX_OK 0x0020
#define AR5315_INT_RX_ERR 0x0040
#define AR5315_INT_RX_EOF 0x0080
#define AR5315_INT_TX_TRUNC 0x0100
#define AR5315_INT_TX_STARVE 0x0200
#define AR5315_INT_LB_TIMEOUT 0x0400
#define AR5315_INT_LB_ERR 0x0800
#define AR5315_INT_MBOX_WR 0x1000
#define AR5315_INT_MBOX_RD 0x2000
/* Bit definitions for INT MASK are the same as INT_STATUS */
#define AR5315_LB_INT_MASK (AR5315_LOCAL + 0x0504)
#define AR5315_LB_INT_EN (AR5315_LOCAL + 0x0508)
#define AR5315_LB_MBOX (AR5315_LOCAL + 0x0600)
/*
* IR Interface Registers
*/
#define AR5315_IR_PKTDATA (AR5315_IR + 0x0000)
#define AR5315_IR_PKTLEN (AR5315_IR + 0x07fc) /* 0 - 63 */
#define AR5315_IR_CONTROL (AR5315_IR + 0x0800)
#define AR5315_IRCTL_TX 0x00000000 /* use as tranmitter */
#define AR5315_IRCTL_RX 0x00000001 /* use as receiver */
#define AR5315_IRCTL_SAMPLECLK_MASK 0x00003ffe /* Sample clk divisor mask */
#define AR5315_IRCTL_SAMPLECLK_SHFT 1
#define AR5315_IRCTL_OUTPUTCLK_MASK 0x03ffc000 /* Output clk divisor mask */
#define AR5315_IRCTL_OUTPUTCLK_SHFT 14
#define AR5315_IR_STATUS (AR5315_IR + 0x0804)
#define AR5315_IRSTS_RX 0x00000001 /* receive in progress */
#define AR5315_IRSTS_TX 0x00000002 /* transmit in progress */
#define AR5315_IR_CONFIG (AR5315_IR + 0x0808)
#define AR5315_IRCFG_INVIN 0x00000001 /* invert input polarity */
#define AR5315_IRCFG_INVOUT 0x00000002 /* invert output polarity */
#define AR5315_IRCFG_SEQ_START_WIN_SEL 0x00000004 /* 1 => 28, 0 => 7 */
#define AR5315_IRCFG_SEQ_START_THRESH 0x000000f0 /* */
#define AR5315_IRCFG_SEQ_END_UNIT_SEL 0x00000100 /* */
#define AR5315_IRCFG_SEQ_END_UNIT_THRESH 0x00007e00 /* */
#define AR5315_IRCFG_SEQ_END_WIN_SEL 0x00008000 /* */
#define AR5315_IRCFG_SEQ_END_WIN_THRESH 0x001f0000 /* */
#define AR5315_IRCFG_NUM_BACKOFF_WORDS 0x01e00000 /* */
/*
* PCI memory constants: Memory area 1 and 2 are the same size -
* (twice the PCI_TLB_PAGE_SIZE). The definition of
* CPU_TO_PCI_MEM_SIZE is coupled with the TLB setup routine
* sysLib.c/sysTlbInit(), in that it assumes that 2 pages of size
* PCI_TLB_PAGE_SIZE are set up in the TLB for each PCI memory space.
*/
#define CPU_TO_PCI_MEM_BASE1 0xE0000000
#define CPU_TO_PCI_MEM_SIZE1 (2*PCI_TLB_PAGE_SIZE)
/* TLB attributes for PCI transactions */
#define PCI_MMU_PAGEMASK 0x00003FFF
#define MMU_PAGE_UNCACHED 0x00000010
#define MMU_PAGE_DIRTY 0x00000004
#define MMU_PAGE_VALID 0x00000002
#define MMU_PAGE_GLOBAL 0x00000001
#define PCI_MMU_PAGEATTRIB (MMU_PAGE_UNCACHED|MMU_PAGE_DIRTY|\
MMU_PAGE_VALID|MMU_PAGE_GLOBAL)
#define PCI_MEMORY_SPACE1_VIRT 0xE0000000 /* Used for non-prefet mem */
#define PCI_MEMORY_SPACE1_PHYS 0x80000000
#define PCI_TLB_PAGE_SIZE 0x01000000
#define TLB_HI_MASK 0xFFFFE000
#define TLB_LO_MASK 0x3FFFFFFF
#define PAGEMASK_SHIFT 11
#define TLB_LO_SHIFT 6
#define PCI_MAX_LATENCY 0xFFF /* Max PCI latency */
#define HOST_PCI_DEV_ID 3
#define HOST_PCI_MBAR0 0x10000000
#define HOST_PCI_MBAR1 0x20000000
#define HOST_PCI_MBAR2 0x30000000
#define HOST_PCI_SDRAM_BASEADDR HOST_PCI_MBAR1
#define PCI_DEVICE_MEM_SPACE 0x800000
#endif

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target/linux/atheros-2.6/files/arch/mips/atheros/ar531x.h
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#ifndef __AR531X_H
#define __AR531X_H
#include <ar531x_platform.h>
#include "ar5312.h"
#include "ar5315.h"
#define MIPS_CPU_IRQ_BASE 0x00
#define AR531X_HIGH_PRIO 0x10
#define AR531X_MISC_IRQ_BASE 0x20
#define AR531X_GPIO_IRQ_BASE 0x30
/* Software's idea of interrupts handled by "CPU Interrupt Controller" */
#define AR531X_IRQ_NONE MIPS_CPU_IRQ_BASE+0
#define AR531X_IRQ_CPU_CLOCK MIPS_CPU_IRQ_BASE+7 /* C0_CAUSE: 0x8000 */
/* Miscellaneous interrupts, which share IP6 */
#define AR531X_MISC_IRQ_NONE AR531X_MISC_IRQ_BASE+0
#define AR531X_MISC_IRQ_TIMER AR531X_MISC_IRQ_BASE+1
#define AR531X_MISC_IRQ_AHB_PROC AR531X_MISC_IRQ_BASE+2
#define AR531X_MISC_IRQ_AHB_DMA AR531X_MISC_IRQ_BASE+3
#define AR531X_MISC_IRQ_GPIO AR531X_MISC_IRQ_BASE+4
#define AR531X_MISC_IRQ_UART0 AR531X_MISC_IRQ_BASE+5
#define AR531X_MISC_IRQ_UART0_DMA AR531X_MISC_IRQ_BASE+6
#define AR531X_MISC_IRQ_WATCHDOG AR531X_MISC_IRQ_BASE+7
#define AR531X_MISC_IRQ_LOCAL AR531X_MISC_IRQ_BASE+8
#define AR531X_MISC_IRQ_COUNT 9
/* GPIO Interrupts [0..7], share AR531X_MISC_IRQ_GPIO */
#define AR531X_GPIO_IRQ_NONE AR531X_MISC_IRQ_BASE+0
#define AR531X_GPIO_IRQ(n) AR531X_MISC_IRQ_BASE+(n)+1
#define AR531X_GPIO_IRQ_COUNT 22
#define sysRegRead(phys) \
(*(volatile u32 *)KSEG1ADDR(phys))
#define sysRegWrite(phys, val) \
((*(volatile u32 *)KSEG1ADDR(phys)) = (val))
/*
* This is board-specific data that is stored in a "fixed" location in flash.
* It is shared across operating systems, so it should not be changed lightly.
* The main reason we need it is in order to extract the ethernet MAC
* address(es).
*/
struct ar531x_boarddata {
u32 magic; /* board data is valid */
#define AR531X_BD_MAGIC 0x35333131 /* "5311", for all 531x platforms */
u16 cksum; /* checksum (starting with BD_REV 2) */
u16 rev; /* revision of this struct */
#define BD_REV 4
char boardName[64]; /* Name of board */
u16 major; /* Board major number */
u16 minor; /* Board minor number */
u32 config; /* Board configuration */
#define BD_ENET0 0x00000001 /* ENET0 is stuffed */
#define BD_ENET1 0x00000002 /* ENET1 is stuffed */
#define BD_UART1 0x00000004 /* UART1 is stuffed */
#define BD_UART0 0x00000008 /* UART0 is stuffed (dma) */
#define BD_RSTFACTORY 0x00000010 /* Reset factory defaults stuffed */
#define BD_SYSLED 0x00000020 /* System LED stuffed */
#define BD_EXTUARTCLK 0x00000040 /* External UART clock */
#define BD_CPUFREQ 0x00000080 /* cpu freq is valid in nvram */
#define BD_SYSFREQ 0x00000100 /* sys freq is set in nvram */
#define BD_WLAN0 0x00000200 /* Enable WLAN0 */
#define BD_MEMCAP 0x00000400 /* CAP SDRAM @ memCap for testing */
#define BD_DISWATCHDOG 0x00000800 /* disable system watchdog */
#define BD_WLAN1 0x00001000 /* Enable WLAN1 (ar5212) */
#define BD_ISCASPER 0x00002000 /* FLAG for AR2312 */
#define BD_WLAN0_2G_EN 0x00004000 /* FLAG for radio0_2G */
#define BD_WLAN0_5G_EN 0x00008000 /* FLAG for radio0_2G */
#define BD_WLAN1_2G_EN 0x00020000 /* FLAG for radio0_2G */
#define BD_WLAN1_5G_EN 0x00040000 /* FLAG for radio0_2G */
u16 resetConfigGpio; /* Reset factory GPIO pin */
u16 sysLedGpio; /* System LED GPIO pin */
u32 cpuFreq; /* CPU core frequency in Hz */
u32 sysFreq; /* System frequency in Hz */
u32 cntFreq; /* Calculated C0_COUNT frequency */
u8 wlan0Mac[6];
u8 enet0Mac[6];
u8 enet1Mac[6];
u16 pciId; /* Pseudo PCIID for common code */
u16 memCap; /* cap bank1 in MB */
/* version 3 */
u8 wlan1Mac[6]; /* (ar5212) */
};
extern char *board_config;
extern char *radio_config;
extern void serial_setup(unsigned long mapbase, unsigned int uartclk);
extern int ar531x_find_config(char *flash_limit);
extern void ar5312_misc_intr_init(int irq_base);
extern void ar5312_irq_dispatch(void);
extern void ar5312_plat_setup(void);
extern void ar5315_misc_intr_init(int irq_base);
extern asmlinkage void ar5315_irq_dispatch(void);
extern void ar5315_plat_setup(void);
#endif

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target/linux/atheros-2.6/files/arch/mips/atheros/board.c
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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
* Copyright (C) 2006 FON Technology, SL.
* Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
*/
/*
* Platform devices for Atheros SoCs
*/
#include <linux/autoconf.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <asm/bootinfo.h>
#include <asm/io.h>
#include "ar531x.h"
char *board_config, *radio_config;
static u8 *find_board_config(char *flash_limit)
{
char *addr;
int found = 0;
for (addr = (char *) (flash_limit - 0x1000);
addr >= (char *) (flash_limit - 0x30000);
addr -= 0x1000) {
if ( *(int *)addr == 0x35333131) {
/* config magic found */
found = 1;
break;
}
}
if (!found) {
printk("WARNING: No board configuration data found!\n");
addr = NULL;
}
return addr;
}
static u8 *find_radio_config(char *flash_limit, char *board_config)
{
int dataFound;
u32 radio_config;
/*
* Now find the start of Radio Configuration data, using heuristics:
* Search forward from Board Configuration data by 0x1000 bytes
* at a time until we find non-0xffffffff.
*/
dataFound = 0;
for (radio_config = (u32) board_config + 0x1000;
(radio_config < (u32) flash_limit);
radio_config += 0x1000) {
if (*(int *)radio_config != 0xffffffff) {
dataFound = 1;
break;
}
}
#ifdef CONFIG_ATHEROS_AR5315
if (!dataFound) { /* AR2316 relocates radio config to new location */
for (radio_config = (u32) board_config + 0xf8;
(radio_config < (u32) flash_limit - 0x1000 + 0xf8);
radio_config += 0x1000) {
if (*(int *)radio_config != 0xffffffff) {
dataFound = 1;
break;
}
}
}
#endif
if (!dataFound) {
printk("Could not find Radio Configuration data\n");
radio_config = 0;
}
return (u8 *) radio_config;
}
int __init ar531x_find_config(char *flash_limit)
{
unsigned int rcfg_size;
char *bcfg, *rcfg;
/* Copy the board and radio data to RAM, because with the new
* spiflash driver, accessing the mapped memory directly is no
* longer safe */
bcfg = find_board_config(flash_limit);
if (!bcfg)
return -ENODEV;
board_config = kmalloc(0x1000, GFP_KERNEL);
memcpy(board_config, bcfg, 0x100);
/* Radio config starts 0x100 bytes after board config, regardless
* of what the physical layout on the flash chip looks like */
rcfg = find_radio_config(flash_limit, bcfg);
if (!rcfg)
return -ENODEV;
printk("Radio config found at offset 0x%x\n", rcfg - bcfg);
radio_config = board_config + 0x100 + ((rcfg - bcfg) & 0xfff);
rcfg_size = 0x1000 - ((rcfg - bcfg) & 0xfff);
memcpy(radio_config, rcfg, rcfg_size);
return 0;
}
void __init serial_setup(unsigned long mapbase, unsigned int uartclk)
{
struct uart_port s;
memset(&s, 0, sizeof(s));
s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
s.iotype = UPIO_MEM;
s.irq = AR531X_MISC_IRQ_UART0;
s.regshift = 2;
s.mapbase = mapbase;
s.uartclk = uartclk;
s.membase = (void __iomem *)s.mapbase;
early_serial_setup(&s);
}
void __init plat_mem_setup(void)
{
switch(mips_machtype) {
#ifdef CONFIG_ATHEROS_AR5312
case MACH_ATHEROS_AR5312:
ar5312_plat_setup();
break;
#endif
#ifdef CONFIG_ATHEROS_AR5315
case MACH_ATHEROS_AR5315:
ar5315_plat_setup();
break;
#endif
}
/* Disable data watchpoints */
write_c0_watchlo0(0);
}
const char *get_system_type(void)
{
switch (mips_machtype) {
#ifdef CONFIG_ATHEROS_AR5312
case MACH_ATHEROS_AR5312:
return "Atheros AR5312\n";
#endif
#ifdef CONFIG_ATHEROS_AR5315
case MACH_ATHEROS_AR5315:
return "Atheros AR5315\n";
#endif
}
return "Atheros (unknown)";
}
void __init plat_timer_setup(struct irqaction *irq)
{
unsigned int count;
/* Usually irq is timer_irqaction (timer_interrupt) */
setup_irq(AR531X_IRQ_CPU_CLOCK, irq);
/* to generate the first CPU timer interrupt */
count = read_c0_count();
write_c0_compare(count + 1000);
}

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target/linux/atheros-2.6/files/arch/mips/atheros/irq.c
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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
* Copyright (C) 2006 FON Technology, SL.
* Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
*/
/*
* Interrupt support for AR531X WiSOC.
*/
#include <linux/autoconf.h>
#include <linux/init.h>
#include <linux/kernel_stat.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/random.h>
#include <linux/pm.h>
#include <linux/delay.h>
#include <linux/reboot.h>
#include <linux/irq.h>
#include <asm/bootinfo.h>
#include <asm/mipsregs.h>
#include <asm/irq_cpu.h>
#include "ar531x.h"
/* ARGSUSED */
irqreturn_t
spurious_irq_handler(int cpl, void *dev_id)
{
/*
printk("spurious_irq_handler: %d cause=0x%8.8x status=0x%8.8x\n",
cpl, cause_intrs, status_intrs);
*/
return IRQ_NONE;
}
/* ARGSUSED */
irqreturn_t
spurious_misc_handler(int cpl, void *dev_id)
{
/*
printk("spurious_misc_handler: 0x%x isr=0x%8.8x imr=0x%8.8x\n",
cpl, ar531x_isr, ar531x_imr);
*/
return IRQ_NONE;
}
static struct irqaction spurious_irq = {
.handler = spurious_irq_handler,
.flags = SA_INTERRUPT,
.name = "spurious_irq",
};
static struct irqaction spurious_misc = {
.handler = spurious_misc_handler,
.flags = SA_INTERRUPT,
.name = "spurious_misc",
};
asmlinkage void plat_irq_dispatch(void)
{
#ifdef CONFIG_ATHEROS_AR5312
if (mips_machtype == MACH_ATHEROS_AR5312)
ar5312_irq_dispatch();
#endif
#ifdef CONFIG_ATHEROS_AR5315
if (mips_machtype == MACH_ATHEROS_AR5315)
ar5315_irq_dispatch();
#endif
}
void __init arch_init_irq(void)
{
clear_c0_status(ST0_IM);
mips_cpu_irq_init(0);
/* Initialize interrupt controllers */
#ifdef CONFIG_ATHEROS_AR5312
if (mips_machtype == MACH_ATHEROS_AR5312)
ar5312_misc_intr_init(AR531X_MISC_IRQ_BASE);
#endif
#ifdef CONFIG_ATHEROS_AR5315
if (mips_machtype == MACH_ATHEROS_AR5315)
ar5315_misc_intr_init(AR531X_MISC_IRQ_BASE);
#endif
/* Default "spurious interrupt" handlers */
setup_irq(AR531X_IRQ_NONE, &spurious_irq);
setup_irq(AR531X_MISC_IRQ_NONE, &spurious_misc);
}

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target/linux/atheros-2.6/files/arch/mips/atheros/prom.c
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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright MontaVista Software Inc
* Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
* Copyright (C) 2006 FON Technology, SL.
* Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
*/
/*
* Prom setup file for ar531x
*/
#include <linux/init.h>
#include <linux/autoconf.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/bootmem.h>
#include <asm/bootinfo.h>
#include <asm/addrspace.h>
#include "ar531x.h"
void __init prom_init(void)
{
u32 memsize, memcfg;
mips_machgroup = MACH_GROUP_ATHEROS;
mips_machtype = -1;
/*
* Atheros CPUs before the AR2315 are using MIPS 4Kc core, later designs are
* using MIPS 4KEc R2 core. This makes it easy to determine the board at runtime.
*/
if (current_cpu_data.cputype == CPU_4KEC) {
mips_machtype = MACH_ATHEROS_AR5315;
memcfg = sysRegRead(AR5315_MEM_CFG);
memsize = 1 + ((memcfg & SDRAM_DATA_WIDTH_M) >> SDRAM_DATA_WIDTH_S);
memsize <<= 1 + ((memcfg & SDRAM_COL_WIDTH_M) >> SDRAM_COL_WIDTH_S);
memsize <<= 1 + ((memcfg & SDRAM_ROW_WIDTH_M) >> SDRAM_ROW_WIDTH_S);
memsize <<= 3;
} else {
int bank0AC, bank1AC;
mips_machtype = MACH_ATHEROS_AR5312;
memcfg = sysRegRead(AR531X_MEM_CFG1);
bank0AC = (memcfg & MEM_CFG1_AC0) >> MEM_CFG1_AC0_S;
bank1AC = (memcfg & MEM_CFG1_AC1) >> MEM_CFG1_AC1_S;
memsize = (bank0AC ? (1 << (bank0AC+1)) : 0)
+ (bank1AC ? (1 << (bank1AC+1)) : 0);
memsize <<= 20;
}
add_memory_region(0, memsize, BOOT_MEM_RAM);
strcpy(arcs_cmdline, "console=ttyS0,9600 rootfstype=squashfs,jffs2");
}
void __init prom_free_prom_memory(void)
{
}

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target/linux/atheros-2.6/files/drivers/mtd/devices/spiflash.c
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/*
* MTD driver for the SPI Flash Memory support.
*
* Copyright (c) 2005-2006 Atheros Communications Inc.
* Copyright (C) 2006 FON Technology, SL.
* Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
*
* This code 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.
*
*/
/*===========================================================================
** !!!! VERY IMPORTANT NOTICE !!!! FLASH DATA STORED IN LITTLE ENDIAN FORMAT
**
** This module contains the Serial Flash access routines for the Atheros SOC.
** The Atheros SOC integrates a SPI flash controller that is used to access
** serial flash parts. The SPI flash controller executes in "Little Endian"
** mode. THEREFORE, all WRITES and READS from the MIPS CPU must be
** BYTESWAPPED! The SPI Flash controller hardware by default performs READ
** ONLY byteswapping when accessed via the SPI Flash Alias memory region
** (Physical Address 0x0800_0000 - 0x0fff_ffff). The data stored in the
** flash sectors is stored in "Little Endian" format.
**
** The spiflash_write() routine performs byteswapping on all write
** operations.
**===========================================================================*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/version.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/platform_device.h>
#include <linux/squashfs_fs.h>
#include <linux/root_dev.h>
#include <asm/delay.h>
#include <asm/io.h>
#include "spiflash.h"
/* debugging */
/* #define SPIFLASH_DEBUG */
#ifndef __BIG_ENDIAN
#error This driver currently only works with big endian CPU.
#endif
#define MAX_PARTS 32
static char module_name[] = "spiflash";
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define FALSE 0
#define TRUE 1
#define ROOTFS_NAME "rootfs"
static __u32 spiflash_regread32(int reg);
static void spiflash_regwrite32(int reg, __u32 data);
static __u32 spiflash_sendcmd (int op);
int __init spiflash_init (void);
void __exit spiflash_exit (void);
static int spiflash_probe_chip (void);
static int spiflash_erase (struct mtd_info *mtd,struct erase_info *instr);
static int spiflash_read (struct mtd_info *mtd, loff_t from,size_t len,size_t *retlen,u_char *buf);
static int spiflash_write (struct mtd_info *mtd,loff_t to,size_t len,size_t *retlen,const u_char *buf);
/* Flash configuration table */
struct flashconfig {
__u32 byte_cnt;
__u32 sector_cnt;
__u32 sector_size;
__u32 cs_addrmask;
} flashconfig_tbl[MAX_FLASH] =
{
{ 0, 0, 0, 0},
{ STM_1MB_BYTE_COUNT, STM_1MB_SECTOR_COUNT, STM_1MB_SECTOR_SIZE, 0x0},
{ STM_2MB_BYTE_COUNT, STM_2MB_SECTOR_COUNT, STM_2MB_SECTOR_SIZE, 0x0},
{ STM_4MB_BYTE_COUNT, STM_4MB_SECTOR_COUNT, STM_4MB_SECTOR_SIZE, 0x0},
{ STM_8MB_BYTE_COUNT, STM_8MB_SECTOR_COUNT, STM_8MB_SECTOR_SIZE, 0x0}
};
/* Mapping of generic opcodes to STM serial flash opcodes */
struct opcodes {
__u16 code;
__s8 tx_cnt;
__s8 rx_cnt;
} stm_opcodes[] = {
{STM_OP_WR_ENABLE, 1, 0},
{STM_OP_WR_DISABLE, 1, 0},
{STM_OP_RD_STATUS, 1, 1},
{STM_OP_WR_STATUS, 1, 0},
{STM_OP_RD_DATA, 4, 4},
{STM_OP_FAST_RD_DATA, 1, 0},
{STM_OP_PAGE_PGRM, 8, 0},
{STM_OP_SECTOR_ERASE, 4, 0},
{STM_OP_BULK_ERASE, 1, 0},
{STM_OP_DEEP_PWRDOWN, 1, 0},
{STM_OP_RD_SIG, 4, 1}
};
/* Driver private data structure */
struct spiflash_data {
struct mtd_info *mtd;
struct mtd_partition *parsed_parts; /* parsed partitions */
void *spiflash_readaddr; /* memory mapped data for read */
void *spiflash_mmraddr; /* memory mapped register space */
spinlock_t mutex;
};
static struct spiflash_data *spidata;
extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts);
/***************************************************************************************************/
static __u32
spiflash_regread32(int reg)
{
volatile __u32 *data = (__u32 *)(spidata->spiflash_mmraddr + reg);
return (*data);
}
static void
spiflash_regwrite32(int reg, __u32 data)
{
volatile __u32 *addr = (__u32 *)(spidata->spiflash_mmraddr + reg);
*addr = data;
return;
}
static __u32
spiflash_sendcmd (int op)
{
__u32 reg;
__u32 mask;
struct opcodes *ptr_opcode;
ptr_opcode = &stm_opcodes[op];
do {
reg = spiflash_regread32(SPI_FLASH_CTL);
} while (reg & SPI_CTL_BUSY);
spiflash_regwrite32(SPI_FLASH_OPCODE, ptr_opcode->code);
reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | ptr_opcode->tx_cnt |
(ptr_opcode->rx_cnt << 4) | SPI_CTL_START;
spiflash_regwrite32(SPI_FLASH_CTL, reg);
if (ptr_opcode->rx_cnt > 0) {
do {
reg = spiflash_regread32(SPI_FLASH_CTL);
} while (reg & SPI_CTL_BUSY);
reg = (__u32) spiflash_regread32(SPI_FLASH_DATA);
switch (ptr_opcode->rx_cnt) {
case 1:
mask = 0x000000ff;
break;
case 2:
mask = 0x0000ffff;
break;
case 3:
mask = 0x00ffffff;
break;
default:
mask = 0xffffffff;
break;
}
reg &= mask;
}
else {
reg = 0;
}
return reg;
}
/* Probe SPI flash device
* Function returns 0 for failure.
* and flashconfig_tbl array index for success.
*/
static int
spiflash_probe_chip (void)
{
__u32 sig;
int flash_size;
/* Read the signature on the flash device */
sig = spiflash_sendcmd(SPI_RD_SIG);
switch (sig) {
case STM_8MBIT_SIGNATURE:
flash_size = FLASH_1MB;
break;
case STM_16MBIT_SIGNATURE:
flash_size = FLASH_2MB;
break;
case STM_32MBIT_SIGNATURE:
flash_size = FLASH_4MB;
break;
case STM_64MBIT_SIGNATURE:
flash_size = FLASH_8MB;
break;
default:
printk (KERN_WARNING "%s: Read of flash device signature failed!\n", module_name);
return (0);
}
return (flash_size);
}
static int
spiflash_erase (struct mtd_info *mtd,struct erase_info *instr)
{
struct opcodes *ptr_opcode;
__u32 temp, reg;
int finished = FALSE;
#ifdef SPIFLASH_DEBUG
printk (KERN_DEBUG "%s(addr = 0x%.8x, len = %d)\n",__FUNCTION__,instr->addr,instr->len);
#endif
/* sanity checks */
if (instr->addr + instr->len > mtd->size) return (-EINVAL);
ptr_opcode = &stm_opcodes[SPI_SECTOR_ERASE];
temp = ((__u32)instr->addr << 8) | (__u32)(ptr_opcode->code);
spin_lock(&spidata->mutex);
spiflash_sendcmd(SPI_WRITE_ENABLE);
do {
schedule();
reg = spiflash_regread32(SPI_FLASH_CTL);
} while (reg & SPI_CTL_BUSY);
spiflash_regwrite32(SPI_FLASH_OPCODE, temp);
reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | ptr_opcode->tx_cnt | SPI_CTL_START;
spiflash_regwrite32(SPI_FLASH_CTL, reg);
do {
schedule();
reg = spiflash_sendcmd(SPI_RD_STATUS);
if (!(reg & SPI_STATUS_WIP)) {
finished = TRUE;
}
} while (!finished);
spin_unlock(&spidata->mutex);
instr->state = MTD_ERASE_DONE;
if (instr->callback) instr->callback (instr);
#ifdef SPIFLASH_DEBUG
printk (KERN_DEBUG "%s return\n",__FUNCTION__);
#endif
return (0);
}
static int
spiflash_read (struct mtd_info *mtd, loff_t from,size_t len,size_t *retlen,u_char *buf)
{
u_char *read_addr;
#ifdef SPIFLASH_DEBUG
printk (KERN_DEBUG "%s(from = 0x%.8x, len = %d)\n",__FUNCTION__,(__u32) from,(int)len);
#endif
/* sanity checks */
if (!len) return (0);
if (from + len > mtd->size) return (-EINVAL);
/* we always read len bytes */
*retlen = len;
read_addr = (u_char *)(spidata->spiflash_readaddr + from);
spin_lock(&spidata->mutex);
memcpy(buf, read_addr, len);
spin_unlock(&spidata->mutex);
return (0);
}
static int
spiflash_write (struct mtd_info *mtd,loff_t to,size_t len,size_t *retlen,const u_char *buf)
{
int done = FALSE, page_offset, bytes_left, finished;
__u32 xact_len, spi_data = 0, opcode, reg;
#ifdef SPIFLASH_DEBUG
printk (KERN_DEBUG "%s(to = 0x%.8x, len = %d)\n",__FUNCTION__,(__u32) to,len);
#endif
*retlen = 0;
/* sanity checks */
if (!len) return (0);
if (to + len > mtd->size) return (-EINVAL);
opcode = stm_opcodes[SPI_PAGE_PROGRAM].code;
bytes_left = len;
while (done == FALSE) {
xact_len = MIN(bytes_left, sizeof(__u32));
/* 32-bit writes cannot span across a page boundary
* (256 bytes). This types of writes require two page
* program operations to handle it correctly. The STM part
* will write the overflow data to the beginning of the
* current page as opposed to the subsequent page.
*/
page_offset = (to & (STM_PAGE_SIZE - 1)) + xact_len;
if (page_offset > STM_PAGE_SIZE) {
xact_len -= (page_offset - STM_PAGE_SIZE);
}
spin_lock(&spidata->mutex);
spiflash_sendcmd(SPI_WRITE_ENABLE);
do {
schedule();
reg = spiflash_regread32(SPI_FLASH_CTL);
} while (reg & SPI_CTL_BUSY);
switch (xact_len) {
case 1:
spi_data = (u32) ((u8) *buf);
break;
case 2:
spi_data = (buf[1] << 8) | buf[0];
break;
case 3:
spi_data = (buf[2] << 16) | (buf[1] << 8) | buf[0];
break;
case 4:
spi_data = (buf[3] << 24) | (buf[2] << 16) |
(buf[1] << 8) | buf[0];
break;
default:
printk("spiflash_write: default case\n");
break;
}
spiflash_regwrite32(SPI_FLASH_DATA, spi_data);
opcode = (opcode & SPI_OPCODE_MASK) | ((__u32)to << 8);
spiflash_regwrite32(SPI_FLASH_OPCODE, opcode);
reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | (xact_len + 4) | SPI_CTL_START;
spiflash_regwrite32(SPI_FLASH_CTL, reg);
finished = FALSE;
do {
schedule();
reg = spiflash_sendcmd(SPI_RD_STATUS);
if (!(reg & SPI_STATUS_WIP)) {
finished = TRUE;
}
} while (!finished);
spin_unlock(&spidata->mutex);
bytes_left -= xact_len;
to += xact_len;
buf += xact_len;
*retlen += xact_len;
if (bytes_left == 0) {
done = TRUE;
}
}
return (0);
}
#ifdef CONFIG_MTD_PARTITIONS
static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL };
#endif
static int spiflash_probe(struct platform_device *pdev)
{
int result = -1, i, j;
u32 len;
int index, num_parts;
struct mtd_info *mtd;
struct mtd_partition *mtd_parts;
char *buf;
struct mtd_partition *part;
struct squashfs_super_block *sb;
u32 config_start;
spidata->spiflash_mmraddr = ioremap_nocache(SPI_FLASH_MMR, SPI_FLASH_MMR_SIZE);
if (!spidata->spiflash_mmraddr) {
printk (KERN_WARNING "%s: Failed to map flash device\n", module_name);
kfree(spidata);
spidata = NULL;
}
mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL);
if (!mtd) {
kfree(spidata);
return (-ENXIO);
}
printk ("MTD driver for SPI flash.\n");
printk ("%s: Probing for Serial flash ...\n", module_name);
if (!(index = spiflash_probe_chip())) {
printk (KERN_WARNING "%s: Found no serial flash device\n", module_name);
kfree(mtd);
kfree(spidata);
return (-ENXIO);
}
printk ("%s: Found SPI serial Flash.\n", module_name);
spidata->spiflash_readaddr = ioremap_nocache(SPI_FLASH_READ, flashconfig_tbl[index].byte_cnt);
if (!spidata->spiflash_readaddr) {
printk (KERN_WARNING "%s: Failed to map flash device\n", module_name);
kfree(mtd);
kfree(spidata);
return (-ENXIO);
}
mtd->name = module_name;
mtd->type = MTD_NORFLASH;
mtd->flags = (MTD_CAP_NORFLASH|MTD_WRITEABLE);
mtd->size = flashconfig_tbl[index].byte_cnt;
mtd->erasesize = flashconfig_tbl[index].sector_size;
mtd->writesize = 1;
mtd->numeraseregions = 0;
mtd->eraseregions = NULL;
mtd->erase = spiflash_erase;
mtd->read = spiflash_read;
mtd->write = spiflash_write;
mtd->owner = THIS_MODULE;
#ifdef SPIFLASH_DEBUG
printk (KERN_DEBUG
"mtd->name = %s\n"
"mtd->size = 0x%.8x (%uM)\n"
"mtd->erasesize = 0x%.8x (%uK)\n"
"mtd->numeraseregions = %d\n",
mtd->name,
mtd->size, mtd->size / (1024*1024),
mtd->erasesize, mtd->erasesize / 1024,
mtd->numeraseregions);
if (mtd->numeraseregions) {
for (result = 0; result < mtd->numeraseregions; result++) {
printk (KERN_DEBUG
"\n\n"
"mtd->eraseregions[%d].offset = 0x%.8x\n"
"mtd->eraseregions[%d].erasesize = 0x%.8x (%uK)\n"
"mtd->eraseregions[%d].numblocks = %d\n",
result,mtd->eraseregions[result].offset,
result,mtd->eraseregions[result].erasesize,mtd->eraseregions[result].erasesize / 1024,
result,mtd->eraseregions[result].numblocks);
}
}
#endif
/* parse redboot partitions */
num_parts = parse_mtd_partitions(mtd, part_probe_types, &spidata->parsed_parts, 0);
mtd_parts = kzalloc(sizeof(struct mtd_partition) * MAX_PARTS, GFP_KERNEL);
buf = kmalloc(mtd->erasesize, GFP_KERNEL);
sb = (struct squashfs_super_block *) buf;
for (i = j = 0; i < num_parts; i++, j++) {
part = &mtd_parts[j];
memcpy(part, &spidata->parsed_parts[i], sizeof(struct mtd_partition));
if (!strcmp(part->name, ROOTFS_NAME)) {
/* create the root device */
ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, i);
part->size -= mtd->erasesize;
config_start = part->offset + part->size;
while ((mtd->read(mtd, part->offset, mtd->erasesize, &len, buf) == 0) &&
(len == mtd->erasesize) &&
(*((u32 *) buf) == SQUASHFS_MAGIC) &&
(sb->bytes_used > 0)) {
/* this is squashfs, allocate another partition starting from the end of filesystem data */
memcpy(&mtd_parts[j + 1], part, sizeof(struct mtd_partition));
len = (u32) sb->bytes_used;
len += (part->offset & 0x000fffff);
len += (mtd->erasesize - 1);
len &= ~(mtd->erasesize - 1);
len -= (part->offset & 0x000fffff);
if (len + mtd->erasesize > part->size)
break;
part = &mtd_parts[++j];
part->offset += len;
part->size -= len;
part->name = kmalloc(10, GFP_KERNEL);
sprintf(part->name, "rootfs%d", j - i);
}
}
if (!strcmp(part->name, "RedBoot config")) {
/* add anoterh partition for the board config data */
memcpy(&mtd_parts[j + 1], part, sizeof(struct mtd_partition));
j++;
part = &mtd_parts[j];
part->offset += part->size;
part->size = mtd->erasesize;
part->name = kmalloc(16, GFP_KERNEL);
sprintf(part->name, "board_config");
}
}
num_parts += j - i;
kfree(buf);
#ifdef SPIFLASH_DEBUG
printk (KERN_DEBUG "Found %d redboot partitions\n", num_parts);
#endif
if (num_parts) {
result = add_mtd_partitions(mtd, mtd_parts, num_parts);
} else {
#ifdef SPIFLASH_DEBUG
printk (KERN_DEBUG "Did not find any redboot partitions\n");
#endif
kfree(mtd);
kfree(spidata);
return (-ENXIO);
}
spidata->mtd = mtd;
return (result);
}
static int spiflash_remove (struct platform_device *pdev)
{
del_mtd_partitions (spidata->mtd);
kfree(spidata->mtd);
return 0;
}
struct platform_driver spiflash_driver = {
.driver.name = "spiflash",
.probe = spiflash_probe,
.remove = spiflash_remove,
};
int __init
spiflash_init (void)
{
spidata = kmalloc(sizeof(struct spiflash_data), GFP_KERNEL);
if (!spidata)
return (-ENXIO);
spin_lock_init(&spidata->mutex);
platform_driver_register(&spiflash_driver);
return 0;
}
void __exit
spiflash_exit (void)
{
kfree(spidata);
}
module_init (spiflash_init);
module_exit (spiflash_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Atheros Communications Inc");
MODULE_DESCRIPTION("MTD driver for SPI Flash on Atheros SOC");

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target/linux/atheros-2.6/files/drivers/mtd/devices/spiflash.h
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/*
* SPI Flash Memory support header file.
*
* $Id: //depot/sw/releases/linuxsrc/src/kernels/mips-linux-2.4.25/drivers/mtd/devices/spiflash.h#3 $
*
*
* Copyright (c) 2005, Atheros Communications Inc.
* Copyright (C) 2006 FON Technology, SL.
* Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
*
* This code 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 FLASH_1MB 1
#define FLASH_2MB 2
#define FLASH_4MB 3
#define FLASH_8MB 4
#define MAX_FLASH 5
#define STM_PAGE_SIZE 256
#define SPI_WRITE_ENABLE 0
#define SPI_WRITE_DISABLE 1
#define SPI_RD_STATUS 2
#define SPI_WR_STATUS 3
#define SPI_RD_DATA 4
#define SPI_FAST_RD_DATA 5
#define SPI_PAGE_PROGRAM 6
#define SPI_SECTOR_ERASE 7
#define SPI_BULK_ERASE 8
#define SPI_DEEP_PWRDOWN 9
#define SPI_RD_SIG 10
#define SPI_MAX_OPCODES 11
#define SFI_WRITE_BUFFER_SIZE 4
#define SFI_FLASH_ADDR_MASK 0x00ffffff
#define STM_8MBIT_SIGNATURE 0x13
#define STM_M25P80_BYTE_COUNT 1048576
#define STM_M25P80_SECTOR_COUNT 16
#define STM_M25P80_SECTOR_SIZE 0x10000
#define STM_16MBIT_SIGNATURE 0x14
#define STM_M25P16_BYTE_COUNT 2097152
#define STM_M25P16_SECTOR_COUNT 32
#define STM_M25P16_SECTOR_SIZE 0x10000
#define STM_32MBIT_SIGNATURE 0x15
#define STM_M25P32_BYTE_COUNT 4194304
#define STM_M25P32_SECTOR_COUNT 64
#define STM_M25P32_SECTOR_SIZE 0x10000
#define STM_64MBIT_SIGNATURE 0x16
#define STM_M25P64_BYTE_COUNT 8388608
#define STM_M25P64_SECTOR_COUNT 128
#define STM_M25P64_SECTOR_SIZE 0x10000
#define STM_1MB_BYTE_COUNT STM_M25P80_BYTE_COUNT
#define STM_1MB_SECTOR_COUNT STM_M25P80_SECTOR_COUNT
#define STM_1MB_SECTOR_SIZE STM_M25P80_SECTOR_SIZE
#define STM_2MB_BYTE_COUNT STM_M25P16_BYTE_COUNT
#define STM_2MB_SECTOR_COUNT STM_M25P16_SECTOR_COUNT
#define STM_2MB_SECTOR_SIZE STM_M25P16_SECTOR_SIZE
#define STM_4MB_BYTE_COUNT STM_M25P32_BYTE_COUNT
#define STM_4MB_SECTOR_COUNT STM_M25P32_SECTOR_COUNT
#define STM_4MB_SECTOR_SIZE STM_M25P32_SECTOR_SIZE
#define STM_8MB_BYTE_COUNT STM_M25P64_BYTE_COUNT
#define STM_8MB_SECTOR_COUNT STM_M25P64_SECTOR_COUNT
#define STM_8MB_SECTOR_SIZE STM_M25P64_SECTOR_SIZE
/*
* ST Microelectronics Opcodes for Serial Flash
*/
#define STM_OP_WR_ENABLE 0x06 /* Write Enable */
#define STM_OP_WR_DISABLE 0x04 /* Write Disable */
#define STM_OP_RD_STATUS 0x05 /* Read Status */
#define STM_OP_WR_STATUS 0x01 /* Write Status */
#define STM_OP_RD_DATA 0x03 /* Read Data */
#define STM_OP_FAST_RD_DATA 0x0b /* Fast Read Data */
#define STM_OP_PAGE_PGRM 0x02 /* Page Program */
#define STM_OP_SECTOR_ERASE 0xd8 /* Sector Erase */
#define STM_OP_BULK_ERASE 0xc7 /* Bulk Erase */
#define STM_OP_DEEP_PWRDOWN 0xb9 /* Deep Power-Down Mode */
#define STM_OP_RD_SIG 0xab /* Read Electronic Signature */
#define STM_STATUS_WIP 0x01 /* Write-In-Progress */
#define STM_STATUS_WEL 0x02 /* Write Enable Latch */
#define STM_STATUS_BP0 0x04 /* Block Protect 0 */
#define STM_STATUS_BP1 0x08 /* Block Protect 1 */
#define STM_STATUS_BP2 0x10 /* Block Protect 2 */
#define STM_STATUS_SRWD 0x80 /* Status Register Write Disable */
/*
* SPI Flash Interface Registers
*/
#define AR531XPLUS_SPI_READ 0x08000000
#define AR531XPLUS_SPI_MMR 0x11300000
#define AR531XPLUS_SPI_MMR_SIZE 12
#define AR531XPLUS_SPI_CTL 0x00
#define AR531XPLUS_SPI_OPCODE 0x04
#define AR531XPLUS_SPI_DATA 0x08
#define SPI_FLASH_READ AR531XPLUS_SPI_READ
#define SPI_FLASH_MMR AR531XPLUS_SPI_MMR
#define SPI_FLASH_MMR_SIZE AR531XPLUS_SPI_MMR_SIZE
#define SPI_FLASH_CTL AR531XPLUS_SPI_CTL
#define SPI_FLASH_OPCODE AR531XPLUS_SPI_OPCODE
#define SPI_FLASH_DATA AR531XPLUS_SPI_DATA
#define SPI_CTL_START 0x00000100
#define SPI_CTL_BUSY 0x00010000
#define SPI_CTL_TXCNT_MASK 0x0000000f
#define SPI_CTL_RXCNT_MASK 0x000000f0
#define SPI_CTL_TX_RX_CNT_MASK 0x000000ff
#define SPI_CTL_SIZE_MASK 0x00060000
#define SPI_CTL_CLK_SEL_MASK 0x03000000
#define SPI_OPCODE_MASK 0x000000ff
#define SPI_STATUS_WIP STM_STATUS_WIP

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target/linux/atheros-2.6/files/drivers/net/ar2313/Makefile
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#
# Makefile for the AR2313 ethernet driver
#
obj-$(CONFIG_AR2313) += ar2313.o

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target/linux/atheros-2.6/files/drivers/net/ar2313/ar2313.c
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target/linux/atheros-2.6/files/drivers/net/ar2313/ar2313.h
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#ifndef _AR2313_H_
#define _AR2313_H_
#include <linux/autoconf.h>
#include <asm/bootinfo.h>
#include "platform.h"
extern unsigned long mips_machtype;
#undef ETHERNET_BASE
#define ETHERNET_BASE ar_eth_base
#define ETHERNET_SIZE 0x00100000
#define ETHERNET_MACS 2
#undef DMA_BASE
#define DMA_BASE ar_dma_base
#define DMA_SIZE 0x00100000
/*
* probe link timer - 5 secs
*/
#define LINK_TIMER (5*HZ)
/*
* Interrupt register base address
*/
#define INTERRUPT_BASE PHYS_TO_K1(ar_int_base)
/*
* Reset Register
*/
#define AR531X_RESET (AR531X_RESETTMR + 0x0020)
#define RESET_SYSTEM 0x00000001 /* cold reset full system */
#define RESET_PROC 0x00000002 /* cold reset MIPS core */
#define RESET_WLAN0 0x00000004 /* cold reset WLAN MAC and BB */
#define RESET_EPHY0 0x00000008 /* cold reset ENET0 phy */
#define RESET_EPHY1 0x00000010 /* cold reset ENET1 phy */
#define RESET_ENET0 0x00000020 /* cold reset ENET0 mac */
#define RESET_ENET1 0x00000040 /* cold reset ENET1 mac */
#define IS_DMA_TX_INT(X) (((X) & (DMA_STATUS_TI)) != 0)
#define IS_DMA_RX_INT(X) (((X) & (DMA_STATUS_RI)) != 0)
#define IS_DRIVER_OWNED(X) (((X) & (DMA_TX_OWN)) == 0)
#ifndef K1_TO_PHYS
// hack
#define K1_TO_PHYS(x) (((unsigned int)(x)) & 0x1FFFFFFF) /* kseg1 to physical */
#endif
#ifndef PHYS_TO_K1
// hack
#define PHYS_TO_K1(x) (((unsigned int)(x)) | 0xA0000000) /* physical to kseg1 */
#endif
#define AR2313_TX_TIMEOUT (HZ/4)
/*
* Rings
*/
#define DSC_RING_ENTRIES_SIZE (AR2313_DESCR_ENTRIES * sizeof(struct desc))
#define DSC_NEXT(idx) ((idx + 1) & (AR2313_DESCR_ENTRIES - 1))
static inline int tx_space (u32 csm, u32 prd)
{
return (csm - prd - 1) & (AR2313_DESCR_ENTRIES - 1);
}
#if MAX_SKB_FRAGS
#define TX_RESERVED (MAX_SKB_FRAGS+1) /* +1 for message header */
#define tx_ring_full(csm, prd) (tx_space(csm, prd) <= TX_RESERVED)
#else
#define tx_ring_full 0
#endif
#define AR2313_MBGET 2
#define AR2313_MBSET 3
#define AR2313_PCI_RECONFIG 4
#define AR2313_PCI_DUMP 5
#define AR2313_TEST_PANIC 6
#define AR2313_TEST_NULLPTR 7
#define AR2313_READ_DATA 8
#define AR2313_WRITE_DATA 9
#define AR2313_GET_VERSION 10
#define AR2313_TEST_HANG 11
#define AR2313_SYNC 12
struct ar2313_cmd {
u32 cmd;
u32 address; /* virtual address of image */
u32 length; /* size of image to download */
u32 mailbox; /* mailbox to get/set */
u32 data[2]; /* contents of mailbox to read/write */
};
/*
* Struct private for the Sibyte.
*
* Elements are grouped so variables used by the tx handling goes
* together, and will go into the same cache lines etc. in order to
* avoid cache line contention between the rx and tx handling on SMP.
*
* Frequently accessed variables are put at the beginning of the
* struct to help the compiler generate better/shorter code.
*/
struct ar2313_private
{
struct net_device *dev;
int version;
u32 mb[2];
volatile ETHERNET_STRUCT *eth_regs;
volatile DMA *dma_regs;
volatile u32 *int_regs;
spinlock_t lock; /* Serialise access to device */
/*
* RX and TX descriptors, must be adjacent
*/
ar2313_descr_t *rx_ring;
ar2313_descr_t *tx_ring;
struct sk_buff **rx_skb;
struct sk_buff **tx_skb;
/*
* RX elements
*/
u32 rx_skbprd;
u32 cur_rx;
/*
* TX elements
*/
u32 tx_prd;
u32 tx_csm;
/*
* Misc elements
*/
int board_idx;
char name[48];
struct net_device_stats stats;
struct {
u32 address;
u32 length;
char *mapping;
} desc;
struct timer_list link_timer;
unsigned short phy; /* merlot phy = 1, samsung phy = 0x1f */
unsigned short mac;
unsigned short link; /* 0 - link down, 1 - link up */
u16 phyData;
struct tasklet_struct rx_tasklet;
int unloading;
};
/*
* Prototypes
*/
static int ar2313_init(struct net_device *dev);
#ifdef TX_TIMEOUT
static void ar2313_tx_timeout(struct net_device *dev);
#endif
#if 0
static void ar2313_multicast_list(struct net_device *dev);
#endif
static int ar2313_restart(struct net_device *dev);
#if DEBUG
static void ar2313_dump_regs(struct net_device *dev);
#endif
static void ar2313_load_rx_ring(struct net_device *dev, int bufs);
static irqreturn_t ar2313_interrupt(int irq, void *dev_id);
static int ar2313_open(struct net_device *dev);
static int ar2313_start_xmit(struct sk_buff *skb, struct net_device *dev);
static int ar2313_close(struct net_device *dev);
static int ar2313_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
static void ar2313_init_cleanup(struct net_device *dev);
static int ar2313_setup_timer(struct net_device *dev);
static void ar2313_link_timer_fn(unsigned long data);
static void ar2313_check_link(struct net_device *dev);
static struct net_device_stats *ar2313_get_stats(struct net_device *dev);
#endif /* _AR2313_H_ */

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target/linux/atheros-2.6/files/drivers/net/ar2313/ar2313_msg.h
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#ifndef _AR2313_MSG_H_
#define _AR2313_MSG_H_
#define AR2313_MTU 1692
#define AR2313_PRIOS 1
#define AR2313_QUEUES (2*AR2313_PRIOS)
#define AR2313_DESCR_ENTRIES 64
typedef struct {
volatile unsigned int status; // OWN, Device control and status.
volatile unsigned int devcs; // pkt Control bits + Length
volatile unsigned int addr; // Current Address.
volatile unsigned int descr; // Next descriptor in chain.
} ar2313_descr_t;
#endif /* _AR2313_MSG_H_ */

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target/linux/atheros-2.6/files/drivers/net/ar2313/dma.h
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#ifndef __ARUBA_DMA_H__
#define __ARUBA_DMA_H__
/*******************************************************************************
*
* Copyright 2002 Integrated Device Technology, Inc.
* All rights reserved.
*
* DMA register definition.
*
* File : $Id: dma.h,v 1.3 2002/06/06 18:34:03 astichte Exp $
*
* Author : ryan.holmQVist@idt.com
* Date : 20011005
* Update :
* $Log: dma.h,v $
* Revision 1.3 2002/06/06 18:34:03 astichte
* Added XXX_PhysicalAddress and XXX_VirtualAddress
*
* Revision 1.2 2002/06/05 18:30:46 astichte
* Removed IDTField
*
* Revision 1.1 2002/05/29 17:33:21 sysarch
* jba File moved from vcode/include/idt/acacia
*
*
******************************************************************************/
#define AR_BIT(x) (1 << (x))
#define DMA_RX_ERR_CRC AR_BIT(1)
#define DMA_RX_ERR_DRIB AR_BIT(2)
#define DMA_RX_ERR_MII AR_BIT(3)
#define DMA_RX_EV2 AR_BIT(5)
#define DMA_RX_ERR_COL AR_BIT(6)
#define DMA_RX_LONG AR_BIT(7)
#define DMA_RX_LS AR_BIT(8) /* last descriptor */
#define DMA_RX_FS AR_BIT(9) /* first descriptor */
#define DMA_RX_MF AR_BIT(10) /* multicast frame */
#define DMA_RX_ERR_RUNT AR_BIT(11) /* runt frame */
#define DMA_RX_ERR_LENGTH AR_BIT(12) /* length error */
#define DMA_RX_ERR_DESC AR_BIT(14) /* descriptor error */
#define DMA_RX_ERROR AR_BIT(15) /* error summary */
#define DMA_RX_LEN_MASK 0x3fff0000
#define DMA_RX_LEN_SHIFT 16
#define DMA_RX_FILT AR_BIT(30)
#define DMA_RX_OWN AR_BIT(31) /* desc owned by DMA controller */
#define DMA_RX1_BSIZE_MASK 0x000007ff
#define DMA_RX1_BSIZE_SHIFT 0
#define DMA_RX1_CHAINED AR_BIT(24)
#define DMA_RX1_RER AR_BIT(25)
#define DMA_TX_ERR_UNDER AR_BIT(1) /* underflow error */
#define DMA_TX_ERR_DEFER AR_BIT(2) /* excessive deferral */
#define DMA_TX_COL_MASK 0x78
#define DMA_TX_COL_SHIFT 3
#define DMA_TX_ERR_HB AR_BIT(7) /* hearbeat failure */
#define DMA_TX_ERR_COL AR_BIT(8) /* excessive collisions */
#define DMA_TX_ERR_LATE AR_BIT(9) /* late collision */
#define DMA_TX_ERR_LINK AR_BIT(10) /* no carrier */
#define DMA_TX_ERR_LOSS AR_BIT(11) /* loss of carrier */
#define DMA_TX_ERR_JABBER AR_BIT(14) /* transmit jabber timeout */
#define DMA_TX_ERROR AR_BIT(15) /* frame aborted */
#define DMA_TX_OWN AR_BIT(31) /* descr owned by DMA controller */
#define DMA_TX1_BSIZE_MASK 0x000007ff
#define DMA_TX1_BSIZE_SHIFT 0
#define DMA_TX1_CHAINED AR_BIT(24) /* chained descriptors */
#define DMA_TX1_TER AR_BIT(25) /* transmit end of ring */
#define DMA_TX1_FS AR_BIT(29) /* first segment */
#define DMA_TX1_LS AR_BIT(30) /* last segment */
#define DMA_TX1_IC AR_BIT(31) /* interrupt on completion */
#define RCVPKT_LENGTH(X) (X >> 16) /* Received pkt Length */
#define MAC_CONTROL_RE AR_BIT(2) /* receive enable */
#define MAC_CONTROL_TE AR_BIT(3) /* transmit enable */
#define MAC_CONTROL_DC AR_BIT(5) /* Deferral check*/
#define MAC_CONTROL_ASTP AR_BIT(8) /* Auto pad strip */
#define MAC_CONTROL_DRTY AR_BIT(10) /* Disable retry */
#define MAC_CONTROL_DBF AR_BIT(11) /* Disable bcast frames */
#define MAC_CONTROL_LCC AR_BIT(12) /* late collision ctrl */
#define MAC_CONTROL_HP AR_BIT(13) /* Hash Perfect filtering */
#define MAC_CONTROL_HASH AR_BIT(14) /* Unicast hash filtering */
#define MAC_CONTROL_HO AR_BIT(15) /* Hash only filtering */
#define MAC_CONTROL_PB AR_BIT(16) /* Pass Bad frames */
#define MAC_CONTROL_IF AR_BIT(17) /* Inverse filtering */
#define MAC_CONTROL_PR AR_BIT(18) /* promiscuous mode (valid frames only) */
#define MAC_CONTROL_PM AR_BIT(19) /* pass multicast */
#define MAC_CONTROL_F AR_BIT(20) /* full-duplex */
#define MAC_CONTROL_DRO AR_BIT(23) /* Disable Receive Own */
#define MAC_CONTROL_HBD AR_BIT(28) /* heart-beat disabled (MUST BE SET) */
#define MAC_CONTROL_BLE AR_BIT(30) /* big endian mode */
#define MAC_CONTROL_RA AR_BIT(31) /* receive all (valid and invalid frames) */
#define MII_ADDR_BUSY AR_BIT(0)
#define MII_ADDR_WRITE AR_BIT(1)
#define MII_ADDR_REG_SHIFT 6
#define MII_ADDR_PHY_SHIFT 11
#define MII_DATA_SHIFT 0
#define FLOW_CONTROL_FCE AR_BIT(1)
#define DMA_BUS_MODE_SWR AR_BIT(0) /* software reset */
#define DMA_BUS_MODE_BLE AR_BIT(7) /* big endian mode */
#define DMA_BUS_MODE_PBL_SHIFT 8 /* programmable burst length 32 */
#define DMA_BUS_MODE_DBO AR_BIT(20) /* big-endian descriptors */
#define DMA_STATUS_TI AR_BIT(0) /* transmit interrupt */
#define DMA_STATUS_TPS AR_BIT(1) /* transmit process stopped */
#define DMA_STATUS_TU AR_BIT(2) /* transmit buffer unavailable */
#define DMA_STATUS_TJT AR_BIT(3) /* transmit buffer timeout */
#define DMA_STATUS_UNF AR_BIT(5) /* transmit underflow */
#define DMA_STATUS_RI AR_BIT(6) /* receive interrupt */
#define DMA_STATUS_RU AR_BIT(7) /* receive buffer unavailable */
#define DMA_STATUS_RPS AR_BIT(8) /* receive process stopped */
#define DMA_STATUS_ETI AR_BIT(10) /* early transmit interrupt */
#define DMA_STATUS_FBE AR_BIT(13) /* fatal bus interrupt */
#define DMA_STATUS_ERI AR_BIT(14) /* early receive interrupt */
#define DMA_STATUS_AIS AR_BIT(15) /* abnormal interrupt summary */
#define DMA_STATUS_NIS AR_BIT(16) /* normal interrupt summary */
#define DMA_STATUS_RS_SHIFT 17 /* receive process state */
#define DMA_STATUS_TS_SHIFT 20 /* transmit process state */
#define DMA_STATUS_EB_SHIFT 23 /* error bits */
#define DMA_CONTROL_SR AR_BIT(1) /* start receive */
#define DMA_CONTROL_ST AR_BIT(13) /* start transmit */
#define DMA_CONTROL_SF AR_BIT(21) /* store and forward */
#endif // __ARUBA_DMA_H__

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target/linux/atheros-2.6/files/drivers/net/ar2313/platform.h
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/********************************************************************************
Title: $Source: platform.h,v $
Author: Dan Steinberg
Copyright Integrated Device Technology 2001
Purpose: AR2313 Register/Bit Definitions
Update:
$Log: platform.h,v $
Notes: See Merlot architecture spec for complete details. Note, all
addresses are virtual addresses in kseg1 (Uncached, Unmapped).
********************************************************************************/
#ifndef PLATFORM_H
#define PLATFORM_H
#define BIT(x) (1 << (x))
#define RESET_BASE 0xBC003020
#define RESET_VALUE 0x00000001
/********************************************************************
* Device controller
********************************************************************/
typedef struct {
volatile unsigned int flash0;
} DEVICE;
#define device (*((volatile DEVICE *) DEV_CTL_BASE))
// DDRC register
#define DEV_WP (1<<26)
/********************************************************************
* DDR controller
********************************************************************/
typedef struct {
volatile unsigned int ddrc0;
volatile unsigned int ddrc1;
volatile unsigned int ddrrefresh;
} DDR;
#define ddr (*((volatile DDR *) DDR_BASE))
// DDRC register
#define DDRC_CS(i) ((i&0x3)<<0)
#define DDRC_WE (1<<2)
/********************************************************************
* Ethernet interfaces
********************************************************************/
#define ETHERNET_BASE 0xB8200000
//
// New Combo structure for Both Eth0 AND eth1
//
typedef struct {
volatile unsigned int mac_control; /* 0x00 */
volatile unsigned int mac_addr[2]; /* 0x04 - 0x08*/
volatile unsigned int mcast_table[2]; /* 0x0c - 0x10 */
volatile unsigned int mii_addr; /* 0x14 */
volatile unsigned int mii_data; /* 0x18 */
volatile unsigned int flow_control; /* 0x1c */
volatile unsigned int vlan_tag; /* 0x20 */
volatile unsigned int pad[7]; /* 0x24 - 0x3c */
volatile unsigned int ucast_table[8]; /* 0x40-0x5c */
} ETHERNET_STRUCT;
/********************************************************************
* Interrupt controller
********************************************************************/
typedef struct {
volatile unsigned int wdog_control; /* 0x08 */
volatile unsigned int wdog_timer; /* 0x0c */
volatile unsigned int misc_status; /* 0x10 */
volatile unsigned int misc_mask; /* 0x14 */
volatile unsigned int global_status; /* 0x18 */
volatile unsigned int reserved; /* 0x1c */
volatile unsigned int reset_control; /* 0x20 */
} INTERRUPT;
#define interrupt (*((volatile INTERRUPT *) INTERRUPT_BASE))
#define INTERRUPT_MISC_TIMER BIT(0)
#define INTERRUPT_MISC_AHBPROC BIT(1)
#define INTERRUPT_MISC_AHBDMA BIT(2)
#define INTERRUPT_MISC_GPIO BIT(3)
#define INTERRUPT_MISC_UART BIT(4)
#define INTERRUPT_MISC_UARTDMA BIT(5)
#define INTERRUPT_MISC_WATCHDOG BIT(6)
#define INTERRUPT_MISC_LOCAL BIT(7)
#define INTERRUPT_GLOBAL_ETH BIT(2)
#define INTERRUPT_GLOBAL_WLAN BIT(3)
#define INTERRUPT_GLOBAL_MISC BIT(4)
#define INTERRUPT_GLOBAL_ITIMER BIT(5)
/********************************************************************
* DMA controller
********************************************************************/
#define DMA_BASE 0xB8201000
typedef struct {
volatile unsigned int bus_mode; /* 0x00 (CSR0) */
volatile unsigned int xmt_poll; /* 0x04 (CSR1) */
volatile unsigned int rcv_poll; /* 0x08 (CSR2) */
volatile unsigned int rcv_base; /* 0x0c (CSR3) */
volatile unsigned int xmt_base; /* 0x10 (CSR4) */
volatile unsigned int status; /* 0x14 (CSR5) */
volatile unsigned int control; /* 0x18 (CSR6) */
volatile unsigned int intr_ena; /* 0x1c (CSR7) */
volatile unsigned int rcv_missed; /* 0x20 (CSR8) */
volatile unsigned int reserved[11]; /* 0x24-0x4c (CSR9-19) */
volatile unsigned int cur_tx_buf_addr; /* 0x50 (CSR20) */
volatile unsigned int cur_rx_buf_addr; /* 0x50 (CSR21) */
} DMA;
#define dma (*((volatile DMA *) DMA_BASE))
// macro to convert from virtual to physical address
#define phys_addr(x) (x & 0x1fffffff)
#endif /* PLATFORM_H */

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target/linux/atheros-2.6/files/include/asm-mips/mach-atheros/ar531x_platform.h
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#ifndef __AR531X_PLATFORM_H
#define __AR531X_PLATFORM_H
/*
* Board support data. The driver is required to locate
* and fill-in this information before passing a reference to
* this structure as the HAL_BUS_TAG parameter supplied to
* ath_hal_attach.
*/
struct ar531x_config {
const char *board; /* board config data */
const char *radio; /* radio config data */
int unit; /* unit number [0, 1] */
u32 tag; /* used as devid for now */
};
struct ar531x_eth {
int phy;
int mac;
u32 reset_base;
u32 reset_mac;
u32 reset_phy;
char *board_config;
};
#endif /* __AR531X_PLATFORM_H */

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target/linux/atheros-2.6/patches/100-board.patch
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target/linux/atheros-2.6/patches/110-spiflash.patch
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diff -urN linux.old/drivers/mtd/devices/Kconfig linux.dev/drivers/mtd/devices/Kconfig
--- linux.old/drivers/mtd/devices/Kconfig 2006-11-29 22:57:37.000000000 +0100
+++ linux.dev/drivers/mtd/devices/Kconfig 2006-12-15 00:03:11.000000000 +0100
--- linux.old/drivers/mtd/devices/Kconfig 2007-02-04 04:30:26.145338240 +0100
+++ linux.dev/drivers/mtd/devices/Kconfig 2007-02-02 23:48:28.748969000 +0100
@@ -68,6 +68,10 @@
used for program and data storage. Set up your spi devices
with the right board-specific platform data.
+config MTD_SPIFLASH
+ tristate "Atheros AR2315/6/7 SPI Flash support"
+ depends on MTD && AR531X_COBRA
+ depends on MTD && ATHEROS_AR5315
+
config MTD_SLRAM
tristate "Uncached system RAM"
depends on MTD
diff -urN linux.old/drivers/mtd/devices/Makefile linux.dev/drivers/mtd/devices/Makefile
--- linux.old/drivers/mtd/devices/Makefile 2006-11-29 22:57:37.000000000 +0100
+++ linux.dev/drivers/mtd/devices/Makefile 2006-12-15 00:03:11.000000000 +0100
--- linux.old/drivers/mtd/devices/Makefile 2007-02-04 04:30:26.146338088 +0100
+++ linux.dev/drivers/mtd/devices/Makefile 2007-02-02 23:48:28.749969000 +0100
@@ -17,3 +17,4 @@
obj-$(CONFIG_MTD_BLOCK2MTD) += block2mtd.o
obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataflash.o
obj-$(CONFIG_MTD_M25P80) += m25p80.o
+obj-$(CONFIG_MTD_SPIFLASH) += spiflash.o
diff -urN linux.old/drivers/mtd/devices/spiflash.c linux.dev/drivers/mtd/devices/spiflash.c
--- linux.old/drivers/mtd/devices/spiflash.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/drivers/mtd/devices/spiflash.c 2006-12-15 08:26:11.000000000 +0100
@@ -0,0 +1,595 @@
+
+/*
+ * MTD driver for the SPI Flash Memory support.
+ *
+ * Copyright (c) 2005-2006 Atheros Communications Inc.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This code 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.
+ *
+ */
+
+/*===========================================================================
+** !!!! VERY IMPORTANT NOTICE !!!! FLASH DATA STORED IN LITTLE ENDIAN FORMAT
+**
+** This module contains the Serial Flash access routines for the Atheros SOC.
+** The Atheros SOC integrates a SPI flash controller that is used to access
+** serial flash parts. The SPI flash controller executes in "Little Endian"
+** mode. THEREFORE, all WRITES and READS from the MIPS CPU must be
+** BYTESWAPPED! The SPI Flash controller hardware by default performs READ
+** ONLY byteswapping when accessed via the SPI Flash Alias memory region
+** (Physical Address 0x0800_0000 - 0x0fff_ffff). The data stored in the
+** flash sectors is stored in "Little Endian" format.
+**
+** The spiflash_write() routine performs byteswapping on all write
+** operations.
+**===========================================================================*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/version.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/squashfs_fs.h>
+#include <linux/root_dev.h>
+#include <asm/delay.h>
+#include <asm/io.h>
+#include "spiflash.h"
+
+/* debugging */
+/* #define SPIFLASH_DEBUG */
+
+#ifndef __BIG_ENDIAN
+#error This driver currently only works with big endian CPU.
+#endif
+
+#define MAX_PARTS 32
+
+static char module_name[] = "spiflash";
+
+#define MIN(a,b) ((a) < (b) ? (a) : (b))
+#define FALSE 0
+#define TRUE 1
+
+#define ROOTFS_NAME "rootfs"
+
+static __u32 spiflash_regread32(int reg);
+static void spiflash_regwrite32(int reg, __u32 data);
+static __u32 spiflash_sendcmd (int op);
+
+static void __init spidata_init(void);
+int __init spiflash_init (void);
+void __exit spiflash_exit (void);
+static int spiflash_probe (void);
+static int spiflash_erase (struct mtd_info *mtd,struct erase_info *instr);
+static int spiflash_read (struct mtd_info *mtd, loff_t from,size_t len,size_t *retlen,u_char *buf);
+static int spiflash_write (struct mtd_info *mtd,loff_t to,size_t len,size_t *retlen,const u_char *buf);
+
+/* Flash configuration table */
+struct flashconfig {
+ __u32 byte_cnt;
+ __u32 sector_cnt;
+ __u32 sector_size;
+ __u32 cs_addrmask;
+} flashconfig_tbl[MAX_FLASH] =
+ {
+ { 0, 0, 0, 0},
+ { STM_1MB_BYTE_COUNT, STM_1MB_SECTOR_COUNT, STM_1MB_SECTOR_SIZE, 0x0},
+ { STM_2MB_BYTE_COUNT, STM_2MB_SECTOR_COUNT, STM_2MB_SECTOR_SIZE, 0x0},
+ { STM_4MB_BYTE_COUNT, STM_4MB_SECTOR_COUNT, STM_4MB_SECTOR_SIZE, 0x0},
+ { STM_8MB_BYTE_COUNT, STM_8MB_SECTOR_COUNT, STM_8MB_SECTOR_SIZE, 0x0}
+ };
+
+/* Mapping of generic opcodes to STM serial flash opcodes */
+struct opcodes {
+ __u16 code;
+ __s8 tx_cnt;
+ __s8 rx_cnt;
+} stm_opcodes[] = {
+ {STM_OP_WR_ENABLE, 1, 0},
+ {STM_OP_WR_DISABLE, 1, 0},
+ {STM_OP_RD_STATUS, 1, 1},
+ {STM_OP_WR_STATUS, 1, 0},
+ {STM_OP_RD_DATA, 4, 4},
+ {STM_OP_FAST_RD_DATA, 1, 0},
+ {STM_OP_PAGE_PGRM, 8, 0},
+ {STM_OP_SECTOR_ERASE, 4, 0},
+ {STM_OP_BULK_ERASE, 1, 0},
+ {STM_OP_DEEP_PWRDOWN, 1, 0},
+ {STM_OP_RD_SIG, 4, 1}
+};
+
+/* Driver private data structure */
+struct spiflash_data {
+ struct mtd_info *mtd;
+ struct mtd_partition *parsed_parts; /* parsed partitions */
+ void *spiflash_readaddr; /* memory mapped data for read */
+ void *spiflash_mmraddr; /* memory mapped register space */
+ spinlock_t mutex;
+};
+
+static struct spiflash_data *spidata;
+
+extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts);
+
+/***************************************************************************************************/
+
+static __u32
+spiflash_regread32(int reg)
+{
+ volatile __u32 *data = (__u32 *)(spidata->spiflash_mmraddr + reg);
+
+ return (*data);
+}
+
+static void
+spiflash_regwrite32(int reg, __u32 data)
+{
+ volatile __u32 *addr = (__u32 *)(spidata->spiflash_mmraddr + reg);
+
+ *addr = data;
+ return;
+}
+
+static __u32
+spiflash_sendcmd (int op)
+{
+ __u32 reg;
+ __u32 mask;
+ struct opcodes *ptr_opcode;
+
+ ptr_opcode = &stm_opcodes[op];
+
+ do {
+ reg = spiflash_regread32(SPI_FLASH_CTL);
+ } while (reg & SPI_CTL_BUSY);
+
+ spiflash_regwrite32(SPI_FLASH_OPCODE, ptr_opcode->code);
+
+ reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | ptr_opcode->tx_cnt |
+ (ptr_opcode->rx_cnt << 4) | SPI_CTL_START;
+
+ spiflash_regwrite32(SPI_FLASH_CTL, reg);
+
+ if (ptr_opcode->rx_cnt > 0) {
+ do {
+ reg = spiflash_regread32(SPI_FLASH_CTL);
+ } while (reg & SPI_CTL_BUSY);
+
+ reg = (__u32) spiflash_regread32(SPI_FLASH_DATA);
+
+ switch (ptr_opcode->rx_cnt) {
+ case 1:
+ mask = 0x000000ff;
+ break;
+ case 2:
+ mask = 0x0000ffff;
+ break;
+ case 3:
+ mask = 0x00ffffff;
+ break;
+ default:
+ mask = 0xffffffff;
+ break;
+ }
+
+ reg &= mask;
+ }
+ else {
+ reg = 0;
+ }
+
+ return reg;
+}
+
+/* Probe SPI flash device
+ * Function returns 0 for failure.
+ * and flashconfig_tbl array index for success.
+ */
+static int
+spiflash_probe (void)
+{
+ __u32 sig;
+ int flash_size;
+
+ if (!spidata)
+ spidata_init();
+
+ if (!spidata) /* init failed */
+ return 0;
+
+ /* Read the signature on the flash device */
+ sig = spiflash_sendcmd(SPI_RD_SIG);
+
+ switch (sig) {
+ case STM_8MBIT_SIGNATURE:
+ flash_size = FLASH_1MB;
+ break;
+ case STM_16MBIT_SIGNATURE:
+ flash_size = FLASH_2MB;
+ break;
+ case STM_32MBIT_SIGNATURE:
+ flash_size = FLASH_4MB;
+ break;
+ case STM_64MBIT_SIGNATURE:
+ flash_size = FLASH_8MB;
+ break;
+ default:
+ printk (KERN_WARNING "%s: Read of flash device signature failed!\n", module_name);
+ return (0);
+ }
+
+ return (flash_size);
+}
+
+
+static int
+spiflash_erase (struct mtd_info *mtd,struct erase_info *instr)
+{
+ struct opcodes *ptr_opcode;
+ __u32 temp, reg;
+ int finished = FALSE;
+
+#ifdef SPIFLASH_DEBUG
+ printk (KERN_DEBUG "%s(addr = 0x%.8x, len = %d)\n",__FUNCTION__,instr->addr,instr->len);
+#endif
+
+ /* sanity checks */
+ if (instr->addr + instr->len > mtd->size) return (-EINVAL);
+
+ ptr_opcode = &stm_opcodes[SPI_SECTOR_ERASE];
+
+ temp = ((__u32)instr->addr << 8) | (__u32)(ptr_opcode->code);
+ spin_lock(&spidata->mutex);
+ spiflash_sendcmd(SPI_WRITE_ENABLE);
+ do {
+ schedule();
+ reg = spiflash_regread32(SPI_FLASH_CTL);
+ } while (reg & SPI_CTL_BUSY);
+
+ spiflash_regwrite32(SPI_FLASH_OPCODE, temp);
+
+ reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | ptr_opcode->tx_cnt | SPI_CTL_START;
+ spiflash_regwrite32(SPI_FLASH_CTL, reg);
+
+ do {
+ schedule();
+ reg = spiflash_sendcmd(SPI_RD_STATUS);
+ if (!(reg & SPI_STATUS_WIP)) {
+ finished = TRUE;
+ }
+ } while (!finished);
+ spin_unlock(&spidata->mutex);
+
+ instr->state = MTD_ERASE_DONE;
+ if (instr->callback) instr->callback (instr);
+
+#ifdef SPIFLASH_DEBUG
+ printk (KERN_DEBUG "%s return\n",__FUNCTION__);
+#endif
+ return (0);
+}
+
+static int
+spiflash_read (struct mtd_info *mtd, loff_t from,size_t len,size_t *retlen,u_char *buf)
+{
+ u_char *read_addr;
+
+#ifdef SPIFLASH_DEBUG
+ printk (KERN_DEBUG "%s(from = 0x%.8x, len = %d)\n",__FUNCTION__,(__u32) from,(int)len);
+#endif
+
+ /* sanity checks */
+ if (!len) return (0);
+ if (from + len > mtd->size) return (-EINVAL);
+
+
+ /* we always read len bytes */
+ *retlen = len;
+
+ read_addr = (u_char *)(spidata->spiflash_readaddr + from);
+ spin_lock(&spidata->mutex);
+ memcpy(buf, read_addr, len);
+ spin_unlock(&spidata->mutex);
+
+ return (0);
+}
+
+static int
+spiflash_write (struct mtd_info *mtd,loff_t to,size_t len,size_t *retlen,const u_char *buf)
+{
+ int done = FALSE, page_offset, bytes_left, finished;
+ __u32 xact_len, spi_data = 0, opcode, reg;
+
+#ifdef SPIFLASH_DEBUG
+ printk (KERN_DEBUG "%s(to = 0x%.8x, len = %d)\n",__FUNCTION__,(__u32) to,len);
+#endif
+
+ *retlen = 0;
+
+ /* sanity checks */
+ if (!len) return (0);
+ if (to + len > mtd->size) return (-EINVAL);
+
+ opcode = stm_opcodes[SPI_PAGE_PROGRAM].code;
+ bytes_left = len;
+
+ while (done == FALSE) {
+ xact_len = MIN(bytes_left, sizeof(__u32));
+
+ /* 32-bit writes cannot span across a page boundary
+ * (256 bytes). This types of writes require two page
+ * program operations to handle it correctly. The STM part
+ * will write the overflow data to the beginning of the
+ * current page as opposed to the subsequent page.
+ */
+ page_offset = (to & (STM_PAGE_SIZE - 1)) + xact_len;
+
+ if (page_offset > STM_PAGE_SIZE) {
+ xact_len -= (page_offset - STM_PAGE_SIZE);
+ }
+
+ spin_lock(&spidata->mutex);
+ spiflash_sendcmd(SPI_WRITE_ENABLE);
+
+ do {
+ schedule();
+ reg = spiflash_regread32(SPI_FLASH_CTL);
+ } while (reg & SPI_CTL_BUSY);
+
+ switch (xact_len) {
+ case 1:
+ spi_data = (u32) ((u8) *buf);
+ break;
+ case 2:
+ spi_data = (buf[1] << 8) | buf[0];
+ break;
+ case 3:
+ spi_data = (buf[2] << 16) | (buf[1] << 8) | buf[0];
+ break;
+ case 4:
+ spi_data = (buf[3] << 24) | (buf[2] << 16) |
+ (buf[1] << 8) | buf[0];
+ break;
+ default:
+ printk("spiflash_write: default case\n");
+ break;
+ }
+
+ spiflash_regwrite32(SPI_FLASH_DATA, spi_data);
+ opcode = (opcode & SPI_OPCODE_MASK) | ((__u32)to << 8);
+ spiflash_regwrite32(SPI_FLASH_OPCODE, opcode);
+
+ reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | (xact_len + 4) | SPI_CTL_START;
+ spiflash_regwrite32(SPI_FLASH_CTL, reg);
+ finished = FALSE;
+
+ do {
+ schedule();
+ reg = spiflash_sendcmd(SPI_RD_STATUS);
+ if (!(reg & SPI_STATUS_WIP)) {
+ finished = TRUE;
+ }
+ } while (!finished);
+ spin_unlock(&spidata->mutex);
+
+ bytes_left -= xact_len;
+ to += xact_len;
+ buf += xact_len;
+
+ *retlen += xact_len;
+
+ if (bytes_left == 0) {
+ done = TRUE;
+ }
+ }
+
+ return (0);
+}
+
+static void __init spidata_init(void)
+{
+ if (spidata)
+ return;
+
+ spidata = kmalloc(sizeof(struct spiflash_data), GFP_KERNEL);
+ spin_lock_init(&spidata->mutex);
+
+ if (!spidata)
+ return;
+
+ spidata->spiflash_mmraddr = ioremap_nocache(SPI_FLASH_MMR, SPI_FLASH_MMR_SIZE);
+
+ if (!spidata->spiflash_mmraddr) {
+ printk (KERN_WARNING "%s: Failed to map flash device\n", module_name);
+ kfree(spidata);
+ spidata = NULL;
+ }
+}
+
+#ifdef CONFIG_MTD_PARTITIONS
+static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL };
+#endif
+
+int __init
+spiflash_init (void)
+{
+ int result = -1, i, j;
+ u32 len;
+ int index, num_parts;
+ struct mtd_info *mtd;
+ struct mtd_partition *mtd_parts;
+ char *buf;
+ struct mtd_partition *part;
+ struct squashfs_super_block *sb;
+ u32 config_start;
+
+ spidata_init();
+
+ if (!spidata)
+ return (-ENXIO);
+
+ mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL);
+ if (!mtd) {
+ kfree(spidata);
+ return (-ENXIO);
+ }
+
+ printk ("MTD driver for SPI flash.\n");
+ printk ("%s: Probing for Serial flash ...\n", module_name);
+ if (!(index = spiflash_probe ())) {
+ printk (KERN_WARNING "%s: Found no serial flash device\n", module_name);
+ kfree(mtd);
+ kfree(spidata);
+ return (-ENXIO);
+ }
+
+ printk ("%s: Found SPI serial Flash.\n", module_name);
+
+ spidata->spiflash_readaddr = ioremap_nocache(SPI_FLASH_READ, flashconfig_tbl[index].byte_cnt);
+ if (!spidata->spiflash_readaddr) {
+ printk (KERN_WARNING "%s: Failed to map flash device\n", module_name);
+ kfree(mtd);
+ kfree(spidata);
+ return (-ENXIO);
+ }
+
+ mtd->name = module_name;
+ mtd->type = MTD_NORFLASH;
+ mtd->flags = (MTD_CAP_NORFLASH|MTD_WRITEABLE);
+ mtd->size = flashconfig_tbl[index].byte_cnt;
+ mtd->erasesize = flashconfig_tbl[index].sector_size;
+ mtd->writesize = 1;
+ mtd->numeraseregions = 0;
+ mtd->eraseregions = NULL;
+ mtd->erase = spiflash_erase;
+ mtd->read = spiflash_read;
+ mtd->write = spiflash_write;
+ mtd->owner = THIS_MODULE;
+
+#ifdef SPIFLASH_DEBUG
+ printk (KERN_DEBUG
+ "mtd->name = %s\n"
+ "mtd->size = 0x%.8x (%uM)\n"
+ "mtd->erasesize = 0x%.8x (%uK)\n"
+ "mtd->numeraseregions = %d\n",
+ mtd->name,
+ mtd->size, mtd->size / (1024*1024),
+ mtd->erasesize, mtd->erasesize / 1024,
+ mtd->numeraseregions);
+
+ if (mtd->numeraseregions) {
+ for (result = 0; result < mtd->numeraseregions; result++) {
+ printk (KERN_DEBUG
+ "\n\n"
+ "mtd->eraseregions[%d].offset = 0x%.8x\n"
+ "mtd->eraseregions[%d].erasesize = 0x%.8x (%uK)\n"
+ "mtd->eraseregions[%d].numblocks = %d\n",
+ result,mtd->eraseregions[result].offset,
+ result,mtd->eraseregions[result].erasesize,mtd->eraseregions[result].erasesize / 1024,
+ result,mtd->eraseregions[result].numblocks);
+ }
+ }
+#endif
+
+ /* parse redboot partitions */
+ num_parts = parse_mtd_partitions(mtd, part_probe_types, &spidata->parsed_parts, 0);
+
+ mtd_parts = kzalloc(sizeof(struct mtd_partition) * MAX_PARTS, GFP_KERNEL);
+ buf = kmalloc(mtd->erasesize, GFP_KERNEL);
+ sb = (struct squashfs_super_block *) buf;
+ for (i = j = 0; i < num_parts; i++, j++) {
+ part = &mtd_parts[j];
+ memcpy(part, &spidata->parsed_parts[i], sizeof(struct mtd_partition));
+
+ if (!strcmp(part->name, ROOTFS_NAME)) {
+ /* create the root device */
+ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, i);
+
+ part->size -= mtd->erasesize;
+ config_start = part->offset + part->size;
+
+ while ((mtd->read(mtd, part->offset, mtd->erasesize, &len, buf) == 0) &&
+ (len == mtd->erasesize) &&
+ (*((u32 *) buf) == SQUASHFS_MAGIC) &&
+ (sb->bytes_used > 0)) {
+
+ /* this is squashfs, allocate another partition starting from the end of filesystem data */
+ memcpy(&mtd_parts[j + 1], part, sizeof(struct mtd_partition));
+
+ len = (u32) sb->bytes_used;
+ len += (part->offset & 0x000fffff);
+ len += (mtd->erasesize - 1);
+ len &= ~(mtd->erasesize - 1);
+ len -= (part->offset & 0x000fffff);
+
+ if (len + mtd->erasesize > part->size)
+ break;
+
+ part = &mtd_parts[++j];
+
+ part->offset += len;
+ part->size -= len;
+
+ part->name = kmalloc(10, GFP_KERNEL);
+ sprintf(part->name, "rootfs%d", j - i);
+ }
+ }
+ if (!strcmp(part->name, "RedBoot config")) {
+ /* add anoterh partition for the board config data */
+ memcpy(&mtd_parts[j + 1], part, sizeof(struct mtd_partition));
+ j++;
+ part = &mtd_parts[j];
+ part->offset += part->size;
+ part->size = mtd->erasesize;
+
+ part->name = kmalloc(16, GFP_KERNEL);
+ sprintf(part->name, "board_config");
+ }
+ }
+ num_parts += j - i;
+ kfree(buf);
+
+#ifdef SPIFLASH_DEBUG
+ printk (KERN_DEBUG "Found %d redboot partitions\n", num_parts);
+#endif
+ if (num_parts) {
+ result = add_mtd_partitions(mtd, mtd_parts, num_parts);
+ } else {
+#ifdef SPIFLASH_DEBUG
+ printk (KERN_DEBUG "Did not find any redboot partitions\n");
+#endif
+ kfree(mtd);
+ kfree(spidata);
+ return (-ENXIO);
+ }
+
+ spidata->mtd = mtd;
+
+ return (result);
+}
+
+void __exit
+spiflash_exit (void)
+{
+ if (spidata && spidata->parsed_parts) {
+ del_mtd_partitions (spidata->mtd);
+ kfree(spidata->mtd);
+ kfree(spidata);
+ }
+}
+
+module_init (spiflash_init);
+module_exit (spiflash_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Atheros Communications Inc");
+MODULE_DESCRIPTION("MTD driver for SPI Flash on Atheros SOC");
+
diff -urN linux.old/drivers/mtd/devices/spiflash.h linux.dev/drivers/mtd/devices/spiflash.h
--- linux.old/drivers/mtd/devices/spiflash.h 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/drivers/mtd/devices/spiflash.h 2006-12-15 06:59:43.000000000 +0100
@@ -0,0 +1,124 @@
+/*
+ * SPI Flash Memory support header file.
+ *
+ * $Id: //depot/sw/releases/linuxsrc/src/kernels/mips-linux-2.4.25/drivers/mtd/devices/spiflash.h#3 $
+ *
+ *
+ * Copyright (c) 2005, Atheros Communications Inc.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * This code 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 FLASH_1MB 1
+#define FLASH_2MB 2
+#define FLASH_4MB 3
+#define FLASH_8MB 4
+#define MAX_FLASH 5
+
+#define STM_PAGE_SIZE 256
+
+#define SPI_WRITE_ENABLE 0
+#define SPI_WRITE_DISABLE 1
+#define SPI_RD_STATUS 2
+#define SPI_WR_STATUS 3
+#define SPI_RD_DATA 4
+#define SPI_FAST_RD_DATA 5
+#define SPI_PAGE_PROGRAM 6
+#define SPI_SECTOR_ERASE 7
+#define SPI_BULK_ERASE 8
+#define SPI_DEEP_PWRDOWN 9
+#define SPI_RD_SIG 10
+#define SPI_MAX_OPCODES 11
+
+#define SFI_WRITE_BUFFER_SIZE 4
+#define SFI_FLASH_ADDR_MASK 0x00ffffff
+
+#define STM_8MBIT_SIGNATURE 0x13
+#define STM_M25P80_BYTE_COUNT 1048576
+#define STM_M25P80_SECTOR_COUNT 16
+#define STM_M25P80_SECTOR_SIZE 0x10000
+
+#define STM_16MBIT_SIGNATURE 0x14
+#define STM_M25P16_BYTE_COUNT 2097152
+#define STM_M25P16_SECTOR_COUNT 32
+#define STM_M25P16_SECTOR_SIZE 0x10000
+
+#define STM_32MBIT_SIGNATURE 0x15
+#define STM_M25P32_BYTE_COUNT 4194304
+#define STM_M25P32_SECTOR_COUNT 64
+#define STM_M25P32_SECTOR_SIZE 0x10000
+
+#define STM_64MBIT_SIGNATURE 0x16
+#define STM_M25P64_BYTE_COUNT 8388608
+#define STM_M25P64_SECTOR_COUNT 128
+#define STM_M25P64_SECTOR_SIZE 0x10000
+
+#define STM_1MB_BYTE_COUNT STM_M25P80_BYTE_COUNT
+#define STM_1MB_SECTOR_COUNT STM_M25P80_SECTOR_COUNT
+#define STM_1MB_SECTOR_SIZE STM_M25P80_SECTOR_SIZE
+#define STM_2MB_BYTE_COUNT STM_M25P16_BYTE_COUNT
+#define STM_2MB_SECTOR_COUNT STM_M25P16_SECTOR_COUNT
+#define STM_2MB_SECTOR_SIZE STM_M25P16_SECTOR_SIZE
+#define STM_4MB_BYTE_COUNT STM_M25P32_BYTE_COUNT
+#define STM_4MB_SECTOR_COUNT STM_M25P32_SECTOR_COUNT
+#define STM_4MB_SECTOR_SIZE STM_M25P32_SECTOR_SIZE
+#define STM_8MB_BYTE_COUNT STM_M25P64_BYTE_COUNT
+#define STM_8MB_SECTOR_COUNT STM_M25P64_SECTOR_COUNT
+#define STM_8MB_SECTOR_SIZE STM_M25P64_SECTOR_SIZE
+
+/*
+ * ST Microelectronics Opcodes for Serial Flash
+ */
+
+#define STM_OP_WR_ENABLE 0x06 /* Write Enable */
+#define STM_OP_WR_DISABLE 0x04 /* Write Disable */
+#define STM_OP_RD_STATUS 0x05 /* Read Status */
+#define STM_OP_WR_STATUS 0x01 /* Write Status */
+#define STM_OP_RD_DATA 0x03 /* Read Data */
+#define STM_OP_FAST_RD_DATA 0x0b /* Fast Read Data */
+#define STM_OP_PAGE_PGRM 0x02 /* Page Program */
+#define STM_OP_SECTOR_ERASE 0xd8 /* Sector Erase */
+#define STM_OP_BULK_ERASE 0xc7 /* Bulk Erase */
+#define STM_OP_DEEP_PWRDOWN 0xb9 /* Deep Power-Down Mode */
+#define STM_OP_RD_SIG 0xab /* Read Electronic Signature */
+
+#define STM_STATUS_WIP 0x01 /* Write-In-Progress */
+#define STM_STATUS_WEL 0x02 /* Write Enable Latch */
+#define STM_STATUS_BP0 0x04 /* Block Protect 0 */
+#define STM_STATUS_BP1 0x08 /* Block Protect 1 */
+#define STM_STATUS_BP2 0x10 /* Block Protect 2 */
+#define STM_STATUS_SRWD 0x80 /* Status Register Write Disable */
+
+/*
+ * SPI Flash Interface Registers
+ */
+#define AR531XPLUS_SPI_READ 0x08000000
+#define AR531XPLUS_SPI_MMR 0x11300000
+#define AR531XPLUS_SPI_MMR_SIZE 12
+
+#define AR531XPLUS_SPI_CTL 0x00
+#define AR531XPLUS_SPI_OPCODE 0x04
+#define AR531XPLUS_SPI_DATA 0x08
+
+#define SPI_FLASH_READ AR531XPLUS_SPI_READ
+#define SPI_FLASH_MMR AR531XPLUS_SPI_MMR
+#define SPI_FLASH_MMR_SIZE AR531XPLUS_SPI_MMR_SIZE
+#define SPI_FLASH_CTL AR531XPLUS_SPI_CTL
+#define SPI_FLASH_OPCODE AR531XPLUS_SPI_OPCODE
+#define SPI_FLASH_DATA AR531XPLUS_SPI_DATA
+
+#define SPI_CTL_START 0x00000100
+#define SPI_CTL_BUSY 0x00010000
+#define SPI_CTL_TXCNT_MASK 0x0000000f
+#define SPI_CTL_RXCNT_MASK 0x000000f0
+#define SPI_CTL_TX_RX_CNT_MASK 0x000000ff
+#define SPI_CTL_SIZE_MASK 0x00060000
+
+#define SPI_CTL_CLK_SEL_MASK 0x03000000
+#define SPI_OPCODE_MASK 0x000000ff
+
+#define SPI_STATUS_WIP STM_STATUS_WIP

2
target/linux/atheros-2.6/patches/120-enable_wireless_for_ahb.patch
Unescape Escape View File

@ -6,7 +6,7 @@ diff -urN linux.old/drivers/net/wireless/Kconfig linux.dev/drivers/net/wireless/
config NET_WIRELESS
bool
- depends on NET_RADIO && (ISA || PCI || PPC_PMAC || PCMCIA)
+ depends on NET_RADIO && (ISA || PCI || PPC_PMAC || PCMCIA || AR531X)
+ depends on NET_RADIO && (ISA || PCI || PPC_PMAC || PCMCIA || ATHEROS)
default y
endmenu

2047
target/linux/atheros-2.6/patches/130-ar2313_ethernet.patch
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