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Documentation / devicetree / bindings / mmc / nvidia,tegra20-sdhci.txt




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

1	* NVIDIA Tegra Secure Digital Host Controller
2	
3	This controller on Tegra family SoCs provides an interface for MMC, SD,
4	and SDIO types of memory cards.
5	
6	This file documents differences between the core properties described
7	by mmc.txt and the properties used by the sdhci-tegra driver.
8	
9	Required properties:
10	- compatible : Should be "nvidia,<chip>-sdhci"
11	- clocks : Must contain one entry, for the module clock.
12	  See ../clocks/clock-bindings.txt for details.
13	- resets : Must contain an entry for each entry in reset-names.
14	  See ../reset/reset.txt for details.
15	- reset-names : Must include the following entries:
16	  - sdhci
17	
18	Optional properties:
19	- power-gpios : Specify GPIOs for power control
20	
21	Example:
22	
23	sdhci@c8000200 {
24		compatible = "nvidia,tegra20-sdhci";
25		reg = <0xc8000200 0x200>;
26		interrupts = <47>;
27		clocks = <&tegra_car 14>;
28		resets = <&tegra_car 14>;
29		reset-names = "sdhci";
30		cd-gpios = <&gpio 69 0>; /* gpio PI5 */
31		wp-gpios = <&gpio 57 0>; /* gpio PH1 */
32		power-gpios = <&gpio 155 0>; /* gpio PT3 */
33		bus-width = <8>;
34	};
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