[mirror_ubuntu-artful-kernel.git] / Documentation / devicetree / bindings / mmc / img-dw-mshc.txt

* Imagination specific extensions to the Synopsys Designware Mobile Storage
  Host Controller

The Synopsys designware mobile storage host controller is used to interface
a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
differences between the core Synopsys dw mshc controller properties described
by synopsys-dw-mshc.txt and the properties used by the Imagination specific
extensions to the Synopsys Designware Mobile Storage Host Controller.

Required Properties:

* compatible: should be
	- "img,pistachio-dw-mshc": for Pistachio SoCs

Example:

	mmc@18142000 {
		compatible = "img,pistachio-dw-mshc";
		reg = <0x18142000 0x400>;
		interrupts = <GIC_SHARED 39 IRQ_TYPE_LEVEL_HIGH>;

		clocks = <&system_clk>, <&sdhost_clk>;
		clock-names = "biu", "ciu";

		fifo-depth = <0x20>;
		bus-width = <4>;
		disable-wp;
	};
Commit	Line	Data
4d7c07cd AB	1	* Imagination specific extensions to the Synopsys Designware Mobile Storage
	2	Host Controller
	3
	4	The Synopsys designware mobile storage host controller is used to interface
	5	a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
	6	differences between the core Synopsys dw mshc controller properties described
	7	by synopsys-dw-mshc.txt and the properties used by the Imagination specific
	8	extensions to the Synopsys Designware Mobile Storage Host Controller.
	9
	10	Required Properties:
	11
	12	* compatible: should be
	13	- "img,pistachio-dw-mshc": for Pistachio SoCs
	14
	15	Example:
	16
	17	mmc@18142000 {
	18	compatible = "img,pistachio-dw-mshc";
	19	reg = <0x18142000 0x400>;
	20	interrupts = <GIC_SHARED 39 IRQ_TYPE_LEVEL_HIGH>;
	21
	22	clocks = <&system_clk>, <&sdhost_clk>;
	23	clock-names = "biu", "ciu";
	24
	25	fifo-depth = <0x20>;
	26	bus-width = <4>;
4d7c07cd AB	27	disable-wp;
4d7c07cd AB	28	};