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Commit 48b6aa2f authored by Ezequiel Garcia's avatar Ezequiel Garcia Committed by Ulf Hansson
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mmc: dt-bindings: add MMC support to JZ4740 SoC 



Add the devicetree binding for JZ4740/JZ4780 SoC MMC/SD controller.

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarEzequiel Garcia <ezequiel@collabora.co.uk>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 61e11eba

Documentation/devicetree/bindings/mmc/jz4740.txt

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* Ingenic JZ47xx MMC controllers



This file documents the device tree properties used for the MMC controller in

Ingenic JZ4740/JZ4780 SoCs. These are in addition to the core MMC properties

described in mmc.txt.



Required properties:

- compatible: Should be one of the following:

  - "ingenic,jz4740-mmc" for the JZ4740

  - "ingenic,jz4780-mmc" for the JZ4780

- reg: Should contain the MMC controller registers location and length.

- interrupts: Should contain the interrupt specifier of the MMC controller.

- clocks: Clock for the MMC controller.



Optional properties:

- 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: RX and TX  DMA request names.

        Should be "rx" and "tx", in that order.



For additional details on DMA client bindings see ../dma/dma.txt.



Example:



mmc0: mmc@13450000 {

	compatible = "ingenic,jz4780-mmc";

	reg = <0x13450000 0x1000>;



	interrupt-parent = <&intc>;

	interrupts = <37>;



	clocks = <&cgu JZ4780_CLK_MSC0>;

	clock-names = "mmc";



	dmas = <&dma JZ4780_DMA_MSC0_RX 0xffffffff>, <&dma JZ4780_DMA_MSC0_TX 0xffffffff>;

	dma-names = "rx", "tx";

};