[PATCH v2 1/5] mmc: dt-bindings: add Mediatek MMC bindings
From: chaotian.jing@mediatek.com (Chaotian Jing)
Date: 2015-03-17 03:13:51
Also in:
linux-devicetree, linux-gpio, linux-mediatek, linux-mmc
Subsystem:
multimedia card (mmc), secure digital (sd) and sdio subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Ulf Hansson, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Document the device-tree binding of Mediatek MMC host Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> --- Documentation/devicetree/bindings/mmc/mtk-sd.txt | 33 ++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/mtk-sd.txt
diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.txt b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
new file mode 100644
index 0000000..ac43f77
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/mtk-sd.txt@@ -0,0 +1,33 @@ +* MTK MMC controller + +The MTK MSDC can act as a MMC controller +to support MMC, SD, and SDIO types of memory cards. + +This file documents differences between the core properties in mmc.txt +and the properties used by the msdc driver. + +Required properties: +- compatible: Should be "mediatek,mt8173-mmc","mediatek,mt8135-mmc". +- interrupts: Should contain MSDC interrupt number +- clocks: MSDC source clock +- clock-names: "source" +- pinctrl-names: should be "default", "state_uhs" +- pinctrl-0: should contain default/high speed pin ctrl +- pinctrl-1: should contain uhs mode pin ctrl + +Optional properties: +- vmmc-supply: power to the Core +- vqmmc-supply: power to the IO(for SD/SDIO) + +Examples: +mmc0: mmc at 11230000 { + compatible = "mediatek,mt8173-mmc","mediatek,mt8135-mmc"; + reg = <0 0x11230000 0 0x108>; + interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_LOW>; + vmmc-supply = <&mt6397_vemc_3v3_reg>; + clocks = <&pericfg PERI_MSDC20_1_CK>; + clock-names = "source"; + pinctrl-names = "default", "state_uhs"; + pinctrl-0 = <&mmc0_pins_default>; + pinctrl-1 = <&mmc0_pins_uhs>; +};
--
1.8.1.1.dirty