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sunxi: add mmc support - add MMC support for sun457i - update kernel config to compile in MMC and ext4 - update kernel cmdline

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Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>

SVN-Revision: 39189
v19.07.3_mercusys_ac12_duma
Zoltan Herpai 11 years ago
parent 2657412374
commit c98c6ef201
8 changed files with 595 additions and 5 deletions
Show Stats Download Patch File Download Diff File

8
target/linux/sunxi/config-3.12
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@ -72,7 +72,7 @@ CONFIG_CLKDEV_LOOKUP=y
CONFIG_CLKSRC_MMIO=y
CONFIG_CLKSRC_OF=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_CMDLINE="console=ttyS0,115200 earlyprintk"
CONFIG_CMDLINE="console=ttyS0,115200 earlyprintk rootwait root=/dev/mmcblk0p2"
CONFIG_CMDLINE_FORCE=y
CONFIG_COMMON_CLK=y
CONFIG_COMPACTION=y
@ -138,6 +138,7 @@ CONFIG_ELF_CORE=y
CONFIG_ENABLE_MUST_CHECK=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_EXPERT is not set
CONFIG_EXT4_FS=y
CONFIG_FRAME_POINTER=y
CONFIG_FRAME_WARN=2048
CONFIG_FREEZER=y
@ -267,11 +268,8 @@ CONFIG_MIGRATION=y
CONFIG_MMC=y
CONFIG_MMC_BLOCK=y
# CONFIG_MMC_BLOCK_BOUNCE is not set
CONFIG_MMC_DW=y
# CONFIG_MMC_DW_EXYNOS is not set
# CONFIG_MMC_DW_IDMAC is not set
CONFIG_MMC_DW_PLTFM=y
CONFIG_MMC_UNSAFE_RESUME=y
CONFIG_MMC_SUNXI=y
CONFIG_MODULES_USE_ELF_REL=y
# CONFIG_MTD is not set
CONFIG_MULTI_IRQ_HANDLER=y

142
target/linux/sunxi/patches-3.12/180-dt-sun7i-add-mmc.patch
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@ -0,0 +1,142 @@
From 665414c8e7584be7f1a30f77cf3eae177e93fd3e Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sat, 14 Dec 2013 22:46:20 +0100
Subject: [PATCH] ARM: dts: sun7i: Add support for mmc
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
arch/arm/boot/dts/sun7i-a20-cubieboard2.dts | 16 ++++++++++++
arch/arm/boot/dts/sun7i-a20-cubietruck.dts | 16 ++++++++++++
arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts | 32 +++++++++++++++++++++++
arch/arm/boot/dts/sun7i-a20.dtsi | 34 +++++++++++++++++++++++++
4 files changed, 98 insertions(+)
diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
index 5c51cb8..6aef299 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
@@ -34,7 +34,23 @@
};
};
+ sdc0: sdc@01c0f000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdc0_pins_a>;
+ pinctrl-1 = <&mmc0_cd_pin_cubieboard2>;
+ cd-gpios = <&pio 7 1 0>; /* PH1 */
+ cd-mode = <1>;
+ status = "okay";
+ };
+
pinctrl@01c20800 {
+ mmc0_cd_pin_cubieboard2: mmc0_cd_pin@0 {
+ allwinner,pins = "PH1";
+ allwinner,function = "gpio_in";
+ allwinner,drive = <0>;
+ allwinner,pull = <0>;
+ };
+
led_pins_cubieboard2: led_pins@0 {
allwinner,pins = "PH20", "PH21";
allwinner,function = "gpio_out";
diff --git a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
index 8a1009d..302c785 100644
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
index ead3013..f271db9 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
@@ -34,7 +34,39 @@
};
};
+ sdc0: sdc@01c0f000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdc0_pins_a>;
+ pinctrl-1 = <&mmc0_cd_pin_olinuxinom>;
+ cd-gpios = <&pio 7 1 0>; /* PH1 */
+ cd-mode = <1>;
+ status = "okay";
+ };
+
+ sdc3: sdc@01c12000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdc3_pins_a>;
+ pinctrl-1 = <&mmc3_cd_pin_olinuxinom>;
+ cd-gpios = <&pio 7 11 0>; /* PH11 */
+ cd-mode = <1>;
+ status = "okay";
+ };
+
pinctrl@01c20800 {
+ mmc0_cd_pin_olinuxinom: mmc0_cd_pin@0 {
+ allwinner,pins = "PH1";
+ allwinner,function = "gpio_in";
+ allwinner,drive = <0>;
+ allwinner,pull = <0>;
+ };
+
+ mmc3_cd_pin_olinuxinom: mmc3_cd_pin@0 {
+ allwinner,pins = "PH11";
+ allwinner,function = "gpio_in";
+ allwinner,drive = <0>;
+ allwinner,pull = <0>;
+ };
+
led_pins_olinuxino: led_pins@0 {
allwinner,pins = "PH2";
allwinner,function = "gpio_out";
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 63757c5..5f9440c 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -303,6 +303,26 @@
#size-cells = <0>;
};
+ sdc0: sdc@01c0f000 {
+ compatible = "allwinner,sun5i-mmc";
+ reg = <0x01c0f000 0x1000>;
+ clocks = <&ahb_gates 8>, <&mmc0>;
+ clock-names = "ahb", "mod";
+ interrupts = <0 32 4>;
+ bus-width = <4>;
+ status = "disabled";
+ };
+
+ sdc3: sdc@01c12000 {
+ compatible = "allwinner,sun5i-mmc";
+ reg = <0x01c12000 0x1000>;
+ clocks = <&ahb_gates 11>, <&mmc3>;
+ clock-names = "ahb", "mod";
+ interrupts = <0 35 4>;
+ bus-width = <4>;
+ status = "disabled";
+ };
+
pio: pinctrl@01c20800 {
compatible = "allwinner,sun7i-a20-pinctrl";
reg = <0x01c20800 0x400>;
@@ -366,6 +386,20 @@
allwinner,drive = <0>;
allwinner,pull = <0>;
};
+
+ sdc0_pins_a: sdc0@0 {
+ allwinner,pins = "PF0","PF1","PF2","PF3","PF4","PF5";
+ allwinner,function = "mmc0";
+ allwinner,drive = <3>;
+ allwinner,pull = <1>;
+ };
+
+ sdc3_pins_a: sdc3@0 {
+ allwinner,pins = "PI4","PI5","PI6","PI7","PI8","PI9";
+ allwinner,function = "mmc3";
+ allwinner,drive = <3>;
+ allwinner,pull = <1>;
+ };
};
timer@01c20c00 {
--
1.8.5.1

76
target/linux/sunxi/patches-3.12/181-dt-sun4i-add-mmc.patch
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@ -0,0 +1,76 @@
From 82cfcf4cf1329420180ef06b7aaec67928396112 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sat, 14 Dec 2013 22:45:39 +0100
Subject: [PATCH] ARM: dts: sun4i: Add support for mmc
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
arch/arm/boot/dts/sun4i-a10-cubieboard.dts | 16 ++++++++++++++++
arch/arm/boot/dts/sun4i-a10.dtsi | 16 ++++++++++++++++
2 files changed, 32 insertions(+)
diff --git a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
index 425a7db..d193937 100644
--- a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
+++ b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
@@ -42,7 +42,23 @@
status = "okay";
};
+ sdc0: sdc@01c0f000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdc0_pins_a>;
+ pinctrl-1 = <&mmc0_cd_pin_cubieboard>;
+ cd-gpios = <&pio 7 1 0>; /* PH1 */
+ cd-mode = <1>;
+ status = "okay";
+ };
+
pinctrl@01c20800 {
+ mmc0_cd_pin_cubieboard: mmc0_cd_pin@0 {
+ allwinner,pins = "PH1";
+ allwinner,function = "gpio_in";
+ allwinner,drive = <0>;
+ allwinner,pull = <0>;
+ };
+
led_pins_cubieboard: led_pins@0 {
allwinner,pins = "PH20", "PH21";
allwinner,function = "gpio_out";
diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index 4dccdb0..13bccd5 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -306,6 +306,15 @@
#size-cells = <0>;
};
+ sdc0: sdc@01c0f000 {
+ compatible = "allwinner,sun4i-mmc";
+ reg = <0x01c0f000 0x1000>;
+ clocks = <&ahb_gates 8>, <&mmc0>;
+ interrupts = <32>;
+ bus-width = <4>;
+ status = "disabled";
+ };
+
intc: interrupt-controller@01c20400 {
compatible = "allwinner,sun4i-ic";
reg = <0x01c20400 0x400>;
@@ -376,6 +385,13 @@
allwinner,drive = <0>;
allwinner,pull = <0>;
};
+
+ sdc0_pins_a: sdc0@0 {
+ allwinner,pins = "PF0","PF1","PF2","PF3","PF4","PF5";
+ allwinner,function = "mmc0";
+ allwinner,drive = <3>;
+ allwinner,pull = <1>;
+ };
};
timer@01c20c00 {
--
1.8.5.1

204
target/linux/sunxi/patches-3.12/182-dt-sun5i-add-mmc.patch
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@ -0,0 +1,204 @@
From 36e4afca857c8b57bd661135d173bdf65b348f78 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sat, 14 Dec 2013 16:20:55 +0100
Subject: [PATCH] ARM: dts: sun5i: Add mmc support
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts | 32 ++++++++++++++++++++++
arch/arm/boot/dts/sun5i-a10s.dtsi | 34 ++++++++++++++++++++++++
arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts | 16 +++++++++++
arch/arm/boot/dts/sun5i-a13-olinuxino.dts | 16 +++++++++++
arch/arm/boot/dts/sun5i-a13.dtsi | 17 ++++++++++++
5 files changed, 115 insertions(+)
diff --git a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
index 3c9f8b3..e53fb12 100644
--- a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
@@ -34,7 +34,39 @@
};
};
+ sdc0: sdc@01c0f000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdc0_pins_a>;
+ pinctrl-1 = <&mmc0_cd_pin_olinuxino_micro>;
+ cd-gpios = <&pio 6 1 0>; /* PG1 */
+ cd-mode = <1>;
+ status = "okay";
+ };
+
+ sdc1: sdc@01c10000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdc1_pins_a>;
+ pinctrl-1 = <&mmc1_cd_pin_olinuxino_micro>;
+ cd-gpios = <&pio 6 13 0>; /* PG13 */
+ cd-mode = <1>;
+ status = "okay";
+ };
+
pinctrl@01c20800 {
+ mmc0_cd_pin_olinuxino_micro: mmc0_cd_pin@0 {
+ allwinner,pins = "PG1";
+ allwinner,function = "gpio_in";
+ allwinner,drive = <0>;
+ allwinner,pull = <0>;
+ };
+
+ mmc1_cd_pin_olinuxino_micro: mmc1_cd_pin@0 {
+ allwinner,pins = "PG13";
+ allwinner,function = "gpio_in";
+ allwinner,drive = <0>;
+ allwinner,pull = <0>;
+ };
+
led_pins_olinuxino: led_pins@0 {
allwinner,pins = "PE3";
allwinner,function = "gpio_out";
diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi
index 83e183c..fdbc290 100644
--- a/arch/arm/boot/dts/sun5i-a10s.dtsi
+++ b/arch/arm/boot/dts/sun5i-a10s.dtsi
@@ -274,6 +274,26 @@
#size-cells = <0>;
};
+ sdc0: sdc@01c0f000 {
+ compatible = "allwinner,sun5i-mmc";
+ reg = <0x01c0f000 0x1000>;
+ clocks = <&ahb_gates 8>, <&mmc0>;
+ clock-names = "ahb", "mod";
+ interrupts = <32>;
+ bus-width = <4>;
+ status = "disabled";
+ };
+
+ sdc1: sdc@01c10000 {
+ compatible = "allwinner,sun5i-mmc";
+ reg = <0x01c10000 0x1000>;
+ clocks = <&ahb_gates 9>, <&mmc1>;
+ clock-names = "ahb", "mod";
+ interrupts = <33>;
+ bus-width = <4>;
+ status = "disabled";
+ };
+
intc: interrupt-controller@01c20400 {
compatible = "allwinner,sun4i-ic";
reg = <0x01c20400 0x400>;
@@ -344,6 +364,20 @@
allwinner,drive = <0>;
allwinner,pull = <0>;
};
+
+ sdc0_pins_a: sdc0@0 {
+ allwinner,pins = "PF0","PF1","PF2","PF3","PF4","PF5";
+ allwinner,function = "mmc0";
+ allwinner,drive = <3>;
+ allwinner,pull = <1>;
+ };
+
+ sdc1_pins_a: sdc1@0 {
+ allwinner,pins = "PG3","PG4","PG5","PG6","PG7","PG8";
+ allwinner,function = "mmc1";
+ allwinner,drive = <3>;
+ allwinner,pull = <1>;
+ };
};
timer@01c20c00 {
diff --git a/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts b/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts
index fe2ce0a..fbd4e7d 100644
--- a/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts
@@ -20,7 +20,23 @@
compatible = "olimex,a13-olinuxino-micro", "allwinner,sun5i-a13";
soc@01c00000 {
+ sdc0: sdc@01c0f000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdc0_pins_a>;
+ pinctrl-1 = <&mmc0_cd_pin_olinuxinom>;
+ cd-gpios = <&pio 6 0 0>; /* PG0 */
+ cd-mode = <1>;
+ status = "okay";
+ };
+
pinctrl@01c20800 {
+ mmc0_cd_pin_olinuxinom: mmc0_cd_pin@0 {
+ allwinner,pins = "PG0";
+ allwinner,function = "gpio_in";
+ allwinner,drive = <0>;
+ allwinner,pull = <0>;
+ };
+
led_pins_olinuxinom: led_pins@0 {
allwinner,pins = "PG9";
allwinner,function = "gpio_out";
diff --git a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
index 9e508dc..ce22c81 100644
--- a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
+++ b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
@@ -23,7 +23,23 @@
};
soc@01c00000 {
+ sdc0: sdc@01c0f000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdc0_pins_a>;
+ pinctrl-1 = <&mmc0_cd_pin_olinuxino>;
+ cd-gpios = <&pio 6 0 0>; /* PG0 */
+ cd-mode = <1>;
+ status = "okay";
+ };
+
pinctrl@01c20800 {
+ mmc0_cd_pin_olinuxino: mmc0_cd_pin@0 {
+ allwinner,pins = "PG0";
+ allwinner,function = "gpio_in";
+ allwinner,drive = <0>;
+ allwinner,pull = <0>;
+ };
+
led_pins_olinuxino: led_pins@0 {
allwinner,pins = "PG9";
allwinner,function = "gpio_out";
diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi
index 0bb4300..0ca0819 100644
--- a/arch/arm/boot/dts/sun5i-a13.dtsi
+++ b/arch/arm/boot/dts/sun5i-a13.dtsi
@@ -255,6 +255,16 @@
#size-cells = <1>;
ranges;
+ sdc0: sdc@01c0f000 {
+ compatible = "allwinner,sun5i-mmc";
+ reg = <0x01c0f000 0x1000>;
+ clocks = <&ahb_gates 8>, <&mmc0>;
+ clock-names = "ahb", "mod";
+ interrupts = <32>;
+ bus-width = <4>;
+ status = "disabled";
+ };
+
intc: interrupt-controller@01c20400 {
compatible = "allwinner,sun4i-ic";
reg = <0x01c20400 0x400>;
@@ -307,6 +317,13 @@
allwinner,drive = <0>;
allwinner,pull = <0>;
};
+
+ sdc0_pins_a: sdc0@0 {
+ allwinner,pins = "PF0","PF1","PF2","PF3","PF4","PF5";
+ allwinner,function = "mmc0";
+ allwinner,drive = <3>;
+ allwinner,pull = <1>;
+ };
};
timer@01c20c00 {
--
1.8.5.1

55
target/linux/sunxi/patches-3.12/183-sunxi-mmc-add-Kconfig.patch
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@ -0,0 +1,55 @@
From 447675f817b95881e9922f002de3fc7f6d6e9207 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20Lanzend=C3=B6rfer?= <david.lanzendoerfer@o2s.ch>
Date: Fri, 6 Sep 2013 22:34:33 +0200
Subject: [PATCH] ARM: sunxi-mci: Add driver for SD/MMC hosts found within
Allwinner A1X SoCs
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/mmc/host/Kconfig | 8 +
drivers/mmc/host/Makefile | 2 +
drivers/mmc/host/sunxi-mci.c | 1056 ++++++++++++++++++++++++++++++++++++++++++
drivers/mmc/host/sunxi-mci.h | 334 +++++++++++++
4 files changed, 1400 insertions(+)
create mode 100644 drivers/mmc/host/sunxi-mci.c
create mode 100644 drivers/mmc/host/sunxi-mci.h
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 7fc5099..0df0322 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -665,3 +665,11 @@ config MMC_REALTEK_PCI
help
Say Y here to include driver code to support SD/MMC card interface
of Realtek PCI-E card reader
+
+config MMC_SUNXI
+ tristate "Allwinner A1X SD/MMC Host Controller support"
+ depends on ARCH_SUNXI
+ default y
+ help
+ This selects support for the SD/MMC Host Controller on
+ Allwinner A1X based SoCs.
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index c41d0c3..f76f783 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -52,6 +52,8 @@ obj-$(CONFIG_MMC_WMT) += wmt-sdmmc.o
obj-$(CONFIG_MMC_REALTEK_PCI) += rtsx_pci_sdmmc.o
+obj-$(CONFIG_MMC_SUNXI) += sunxi-mci.o
+
obj-$(CONFIG_MMC_SDHCI_PLTFM) += sdhci-pltfm.o
obj-$(CONFIG_MMC_SDHCI_CNS3XXX) += sdhci-cns3xxx.o
obj-$(CONFIG_MMC_SDHCI_ESDHC_IMX) += sdhci-esdhc-imx.o
diff --git a/drivers/mmc/host/sunxi-mci.c b/drivers/mmc/host/sunxi-mci.c
new file mode 100644
index 0000000..cbde1d3
diff --git a/drivers/mmc/host/sunxi-mci.h b/drivers/mmc/host/sunxi-mci.h
new file mode 100644
index 0000000..0f5f95c
\ No newline at end of file
--
1.8.5.1

42
target/linux/sunxi/patches-3.12/184-sunxi-mci-use-phasectrl-from-sunxiclk.patch
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@ -0,0 +1,42 @@
From 518dfd76baef66d0ef4c256fc0f72ea06d6be8cc Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 15 Dec 2013 19:44:01 +0100
Subject: [PATCH] ARM: sunxi: clk: export clk_sunxi_mmc_phase_control
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
include/linux/clk/sunxi.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
create mode 100644 include/linux/clk/sunxi.h
diff --git a/include/linux/clk/sunxi.h b/include/linux/clk/sunxi.h
new file mode 100644
index 0000000..1ef5c89
--- /dev/null
+++ b/include/linux/clk/sunxi.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2013 - Hans de Goede <hdegoede@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __LINUX_CLK_SUNXI_H_
+#define __LINUX_CLK_SUNXI_H_
+
+#include <linux/clk.h>
+
+void clk_sunxi_mmc_phase_control(struct clk_hw *hw, u8 sample, u8 output);
+
+#endif
--
1.8.5.1

62
target/linux/sunxi/patches-3.12/185-clk-sunxi-mmc-phasectrl.patch
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@ -0,0 +1,62 @@
From e074907f73e0bc70740901fb4a05fdf5fc81b3ff Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
Date: Fri, 20 Sep 2013 20:29:17 -0300
Subject: [PATCH] clk: sunxi: Implement MMC phase control
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit
Signed-off-by: Emilio López <emilio@elopez.com.ar>
---
drivers/clk/sunxi/clk-sunxi.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
index 360d705..d2b8d3c 100644
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -352,6 +352,41 @@ static void sun4i_get_mod0_factors(u32 *freq, u32 parent_rate,
/**
+ * clk_sunxi_mmc_phase_control() - configures MMC clock phase control
+ */
+
+void clk_sunxi_mmc_phase_control(struct clk_hw *hw, u8 sample, u8 output)
+{
+ #define to_clk_composite(_hw) container_of(_hw, struct clk_composite, hw)
+ #define to_clk_factors(_hw) container_of(_hw, struct clk_factors, hw)
+
+ struct clk_composite *composite = to_clk_composite(hw);
+ struct clk_hw *rate_hw = composite->rate_hw;
+ struct clk_factors *factors = to_clk_factors(rate_hw);
+ unsigned long flags = 0;
+ u32 reg;
+
+ if (factors->lock)
+ spin_lock_irqsave(factors->lock, flags);
+
+ reg = readl(factors->reg);
+
+ /* set sample clock phase control */
+ reg &= ~(0x7 << 20);
+ reg |= ((sample & 0x7) << 20);
+
+ /* set output clock phase control */
+ reg &= ~(0x7 << 8);
+ reg |= ((output & 0x7) << 8);
+
+ writel(reg, factors->reg);
+
+ if (factors->lock)
+ spin_unlock_irqrestore(factors->lock, flags);
+}
+
+
+/**
* sunxi_factors_clk_setup() - Setup function for factor clocks
*/
--
1.8.5.1

11
target/linux/sunxi/patches-3.12/186-dt-sun4i-fixup-sdc0.patch
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@ -0,0 +1,11 @@
diff -ruN old/arch/arm/boot/dts/sun4i-a10.dtsi new/arch/arm/boot/dts/sun4i-a10.dtsi
--- old/arch/arm/boot/dts/sun4i-a10.dtsi 2014-01-04 01:59:34.000000000 +0100
+++ new/arch/arm/boot/dts/sun4i-a10.dtsi 2014-01-04 01:54:00.000000000 +0100
@@ -323,6 +323,7 @@
compatible = "allwinner,sun4i-mmc";
reg = <0x01c0f000 0x1000>;
clocks = <&ahb_gates 8>, <&mmc0>;
+ clock-names = "ahb", "mod";
interrupts = <32>;
bus-width = <4>;
status = "disabled";
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