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Commit 434936c3 authored by Peter Griffin's avatar Peter Griffin Committed by Ulf Hansson
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mmc: sdhci-st: ST Microelectronics SDHCI binding documentation. 



This patch adds the device tree binding documentation for the ST
SDHCI driver. It documents the differences between the core properties
described by mmc.txt and the properties used by the sdhci-st driver.

Signed-off-by: default avatarGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: default avatarPeter Griffin <peter.griffin@linaro.org>
Acked-by: default avatarLee Jones <lee.jones@linaro.org>
Acked-by: default avatarMaxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent f52d9c4f

Documentation/devicetree/bindings/mmc/sdhci-st.txt

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* STMicroelectronics sdhci-st MMC/SD controller



This file documents the differences between the core properties in

Documentation/devicetree/bindings/mmc/mmc.txt and the properties

used by the sdhci-st driver.



Required properties:

- compatible :  Must be "st,sdhci"

- clock-names : Should be "mmc"

                See: Documentation/devicetree/bindings/resource-names.txt

- clocks :      Phandle of the clock used by the sdhci controler

                See: Documentation/devicetree/bindings/clock/clock-bindings.txt



Optional properties:

- non-removable: non-removable slot

                 See: Documentation/devicetree/bindings/mmc/mmc.txt

- bus-width: Number of data lines

                 See: Documentation/devicetree/bindings/mmc/mmc.txt



Example:



mmc0: sdhci@fe81e000 {

	compatible	= "st,sdhci";

	status		= "disabled";

	reg		= <0xfe81e000 0x1000>;

	interrupts	= <GIC_SPI 127 IRQ_TYPE_NONE>;

	interrupt-names	= "mmcirq";

	pinctrl-names	= "default";

	pinctrl-0	= <&pinctrl_mmc0>;

	clock-names	= "mmc";

	clocks		= <&clk_s_a1_ls 1>;

	bus-width       = <8>

};