[deliverable/linux.git] / Documentation / devicetree / bindings / mmc / mxs-mmc.txt

* Freescale MXS MMC controller

The Freescale MXS Synchronous Serial Ports (SSP) 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 mxsmmc driver.

Required properties:
- compatible: Should be "fsl,<chip>-mmc".  The supported chips include
  imx23 and imx28.
- interrupts: Should contain ERROR interrupt number
- dmas: DMA specifier, consisting of a phandle to DMA controller node
  and SSP DMA channel ID.
  Refer to dma.txt and fsl-mxs-dma.txt for details.
- dma-names: Must be "rx-tx".

Examples:

ssp0: ssp@80010000 {
	compatible = "fsl,imx28-mmc";
	reg = <0x80010000 2000>;
	interrupts = <96>;
	dmas = <&dma_apbh 0>;
	dma-names = "rx-tx";
	bus-width = <8>;
};
Commit	Line	Data
6de4d817 SG	1	* Freescale MXS MMC controller
	2
	3	The Freescale MXS Synchronous Serial Ports (SSP) can act as a MMC controller
	4	to support MMC, SD, and SDIO types of memory cards.
	5
4efafee0 CB	6	This file documents differences between the core properties in mmc.txt
	7	and the properties used by the mxsmmc driver.
	8
6de4d817 SG	9	Required properties:
	10	- compatible: Should be "fsl,<chip>-mmc". The supported chips include
	11	imx23 and imx28.
0e91e434 SG	12	- interrupts: Should contain ERROR interrupt number
	13	- dmas: DMA specifier, consisting of a phandle to DMA controller node
	14	and SSP DMA channel ID.
	15	Refer to dma.txt and fsl-mxs-dma.txt for details.
	16	- dma-names: Must be "rx-tx".
6de4d817 SG	17
	18	Examples:
	19
	20	ssp0: ssp@80010000 {
	21	compatible = "fsl,imx28-mmc";
	22	reg = <0x80010000 2000>;
0e91e434 SG	23	interrupts = <96>;
	24	dmas = <&dma_apbh 0>;
	25	dma-names = "rx-tx";
6de4d817 SG	26	bus-width = <8>;
6de4d817 SG	27	};