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




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Based on kernel version 4.13.3. Page generated on 2017-09-23 13:55 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 one of:
11	  - "nvidia,tegra20-sdhci": for Tegra20
12	  - "nvidia,tegra30-sdhci": for Tegra30
13	  - "nvidia,tegra114-sdhci": for Tegra114
14	  - "nvidia,tegra124-sdhci": for Tegra124 and Tegra132
15	  - "nvidia,tegra210-sdhci": for Tegra210
16	  - "nvidia,tegra186-sdhci": for Tegra186
17	- clocks : Must contain one entry, for the module clock.
18	  See ../clocks/clock-bindings.txt for details.
19	- resets : Must contain an entry for each entry in reset-names.
20	  See ../reset/reset.txt for details.
21	- reset-names : Must include the following entries:
22	  - sdhci
23	
24	Optional properties:
25	- power-gpios : Specify GPIOs for power control
26	
27	Example:
28	
29	sdhci@c8000200 {
30		compatible = "nvidia,tegra20-sdhci";
31		reg = <0xc8000200 0x200>;
32		interrupts = <47>;
33		clocks = <&tegra_car 14>;
34		resets = <&tegra_car 14>;
35		reset-names = "sdhci";
36		cd-gpios = <&gpio 69 0>; /* gpio PI5 */
37		wp-gpios = <&gpio 57 0>; /* gpio PH1 */
38		power-gpios = <&gpio 155 0>; /* gpio PT3 */
39		bus-width = <8>;
40	};
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