diff options
Diffstat (limited to 'target/linux/omap/patches-3.12/103-ARM-dts-add-AM33XX-MMC-support-and-documentation.patch')
| -rw-r--r-- | target/linux/omap/patches-3.12/103-ARM-dts-add-AM33XX-MMC-support-and-documentation.patch | 176 |
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 0000000..b4585b1 --- /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"; |