tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1* NVIDIA Tegra Secure Digital Host Controller
2
3This controller on Tegra family SoCs provides an interface for MMC, SD,
4and SDIO types of memory cards.
5
6This file documents differences between the core properties described
7by mmc.txt and the properties used by the sdhci-tegra driver.
8
9Required 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
24Optional properties:
25- power-gpios : Specify GPIOs for power control
26
27Example:
28
29sdhci@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};