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Documentation / devicetree / bindings / mmc / davinci_mmc.txt




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Based on kernel version 3.16. Page generated on 2014-08-06 21:37 EST.

1	* TI Highspeed MMC host controller for DaVinci
2	
3	The Highspeed MMC Host Controller on TI DaVinci family
4	provides an interface for MMC, SD and SDIO types of memory cards.
5	
6	This file documents the properties used by the davinci_mmc driver.
7	
8	Required properties:
9	- compatible:
10	 Should be "ti,da830-mmc": for da830, da850, dm365
11	 Should be "ti,dm355-mmc": for dm355, dm644x
12	
13	Optional properties:
14	- bus-width: Number of data lines, can be <1>, <4>, or <8>, default <1>
15	- max-frequency: Maximum operating clock frequency, default 25MHz.
16	- dmas: List of DMA specifiers with the controller specific format
17		as described in the generic DMA client binding. A tx and rx
18		specifier is required.
19	- dma-names: RX and TX  DMA request names. These strings correspond
20		1:1 with the DMA specifiers listed in dmas.
21	
22	Example:
23	mmc0: mmc@1c40000 {
24		compatible = "ti,da830-mmc",
25		reg = <0x40000 0x1000>;
26		interrupts = <16>;
27		status = "okay";
28		bus-width = <4>;
29		max-frequency = <50000000>;
30		dmas = <&edma 16
31			&edma 17>;
32		dma-names = "rx", "tx";
33	};
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