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-rw-r--r--target/linux/omap/patches-3.12/103-ARM-dts-add-AM33XX-MMC-support-and-documentation.patch176
1 files changed, 176 insertions, 0 deletions
diff --git a/target/linux/omap/patches-3.12/103-ARM-dts-add-AM33XX-MMC-support-and-documentation.patch b/target/linux/omap/patches-3.12/103-ARM-dts-add-AM33XX-MMC-support-and-documentation.patch
new file mode 100644
index 0000000000..b4585b1dfe
--- /dev/null
+++ b/target/linux/omap/patches-3.12/103-ARM-dts-add-AM33XX-MMC-support-and-documentation.patch
@@ -0,0 +1,176 @@
+Adds AM33XX MMC support for am335x-bone, am335x-evm and am335x-evmsk boards.
+
+Also added is the DMA binding definitions based on the generic DMA request
+binding.
+
+Additional changes made to DTS:
+* Interrupt, reg and compatible properties added
+* ti,needs-special-hs-handling added
+
+Signed-off-by: Matt Porter <mporter@ti.com>
+Acked-by: Tony Lindgren <tony@atomide.com>
+Signed-off-by: Joel Fernandes <joelf@ti.com>
+
+---
+.../devicetree/bindings/mmc/ti-omap-hsmmc.txt | 26 ++++++++++++++-
+ arch/arm/boot/dts/am335x-bone.dts | 11 +++++++
+ arch/arm/boot/dts/am335x-evm.dts | 7 ++++
+ arch/arm/boot/dts/am335x-evmsk.dts | 7 ++++
+ arch/arm/boot/dts/am33xx.dtsi | 38 ++++++++++++++++++++++
+ 5 files changed, 88 insertions(+), 1 deletion(-)
+
+diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
+index ed271fc..8c8908a 100644
+--- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
++++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
+@@ -20,8 +20,29 @@ ti,dual-volt: boolean, supports dual voltage cards
+ ti,non-removable: non-removable slot (like eMMC)
+ ti,needs-special-reset: Requires a special softreset sequence
+ ti,needs-special-hs-handling: HSMMC IP needs special setting for handling High Speed
++dmas: List of DMA specifiers with the controller specific format
++as described in the generic DMA client binding. A tx and rx
++specifier is required.
++dma-names: List of DMA request names. These strings correspond
++1:1 with the DMA specifiers listed in dmas. The string naming is
++to be "rx" and "tx" for RX and TX DMA requests, respectively.
++
++Examples:
++
++[hwmod populated DMA resources]
++
++ mmc1: mmc@0x4809c000 {
++ compatible = "ti,omap4-hsmmc";
++ reg = <0x4809c000 0x400>;
++ ti,hwmods = "mmc1";
++ ti,dual-volt;
++ bus-width = <4>;
++ vmmc-supply = <&vmmc>; /* phandle to regulator node */
++ ti,non-removable;
++ };
++
++[generic DMA request binding]
+
+-Example:
+ mmc1: mmc@0x4809c000 {
+ compatible = "ti,omap4-hsmmc";
+ reg = <0x4809c000 0x400>;
+@@ -30,4 +51,7 @@ Example:
+ bus-width = <4>;
+ vmmc-supply = <&vmmc>; /* phandle to regulator node */
+ ti,non-removable;
++ dmas = <&edma 24
++ &edma 25>;
++ dma-names = "tx", "rx";
+ };
+diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
+index 7993c48..d5f43fe 100644
+--- a/arch/arm/boot/dts/am335x-bone.dts
++++ b/arch/arm/boot/dts/am335x-bone.dts
+@@ -9,3 +9,14 @@
+
+ #include "am33xx.dtsi"
+ #include "am335x-bone-common.dtsi"
++
++&ldo3_reg {
++ regulator-min-microvolt = <1800000>;
++ regulator-max-microvolt = <3300000>;
++ regulator-always-on;
++};
++
++&mmc1 {
++ status = "okay";
++ vmmc-supply = <&ldo3_reg>;
++};
+diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
+index e8ec875..bc4a69d 100644
+--- a/arch/arm/boot/dts/am335x-evm.dts
++++ b/arch/arm/boot/dts/am335x-evm.dts
+@@ -477,6 +477,8 @@
+ };
+
+ vmmc_reg: regulator@12 {
++ regulator-min-microvolt = <1800000>;
++ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+ };
+@@ -517,3 +519,8 @@
+ ti,adc-channels = <4 5 6 7>;
+ };
+ };
++
++&mmc1 {
++ status = "okay";
++ vmmc-supply = <&vmmc_reg>;
++};
+diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
+index 4f339fa..55fd194 100644
+--- a/arch/arm/boot/dts/am335x-evmsk.dts
++++ b/arch/arm/boot/dts/am335x-evmsk.dts
+@@ -393,6 +393,8 @@
+ };
+
+ vmmc_reg: regulator@12 {
++ regulator-min-microvolt = <1800000>;
++ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+ };
+@@ -419,3 +421,8 @@
+ phy_id = <&davinci_mdio>, <1>;
+ phy-mode = "rgmii-txid";
+ };
++
++&mmc1 {
++ status = "okay";
++ vmmc-supply = <&vmmc_reg>;
++};
+diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
+index 9ce85e5..0a82fca 100644
+--- a/arch/arm/boot/dts/am33xx.dtsi
++++ b/arch/arm/boot/dts/am33xx.dtsi
+@@ -240,6 +240,44 @@
+ status = "disabled";
+ };
+
++ mmc1: mmc@48060000 {
++ compatible = "ti,omap4-hsmmc";
++ ti,hwmods = "mmc1";
++ ti,dual-volt;
++ ti,needs-special-reset;
++ ti,needs-special-hs-handling;
++ dmas = <&edma 24
++ &edma 25>;
++ dma-names = "tx", "rx";
++ interrupts = <64>;
++ interrupt-parent = <&intc>;
++ reg = <0x48060000 0x1000>;
++ status = "disabled";
++ };
++
++ mmc2: mmc@481d8000 {
++ compatible = "ti,omap4-hsmmc";
++ ti,hwmods = "mmc2";
++ ti,needs-special-reset;
++ dmas = <&edma 2
++ &edma 3>;
++ dma-names = "tx", "rx";
++ interrupts = <28>;
++ interrupt-parent = <&intc>;
++ reg = <0x481d8000 0x1000>;
++ status = "disabled";
++ };
++
++ mmc3: mmc@47810000 {
++ compatible = "ti,omap4-hsmmc";
++ ti,hwmods = "mmc3";
++ ti,needs-special-reset;
++ interrupts = <29>;
++ interrupt-parent = <&intc>;
++ reg = <0x47810000 0x1000>;
++ status = "disabled";
++ };
++
+ wdt2: wdt@44e35000 {
+ compatible = "ti,omap3-wdt";
+ ti,hwmods = "wd_timer2";