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Diffstat (limited to 'dts/Bindings/mmc/nvidia,tegra20-sdhci.txt')
| -rw-r--r-- | dts/Bindings/mmc/nvidia,tegra20-sdhci.txt | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/dts/Bindings/mmc/nvidia,tegra20-sdhci.txt b/dts/Bindings/mmc/nvidia,tegra20-sdhci.txt new file mode 100644 index 0000000000..f357c16ea8 --- /dev/null +++ b/dts/Bindings/mmc/nvidia,tegra20-sdhci.txt @@ -0,0 +1,34 @@ +* NVIDIA Tegra Secure Digital Host Controller + +This controller on Tegra family SoCs provides an interface for MMC, SD, +and SDIO types of memory cards. + +This file documents differences between the core properties described +by mmc.txt and the properties used by the sdhci-tegra driver. + +Required properties: +- compatible : Should be "nvidia,<chip>-sdhci" +- clocks : Must contain one entry, for the module clock. + See ../clocks/clock-bindings.txt for details. +- resets : Must contain an entry for each entry in reset-names. + See ../reset/reset.txt for details. +- reset-names : Must include the following entries: + - sdhci + +Optional properties: +- power-gpios : Specify GPIOs for power control + +Example: + +sdhci@c8000200 { + compatible = "nvidia,tegra20-sdhci"; + reg = <0xc8000200 0x200>; + interrupts = <47>; + clocks = <&tegra_car 14>; + resets = <&tegra_car 14>; + reset-names = "sdhci"; + cd-gpios = <&gpio 69 0>; /* gpio PI5 */ + wp-gpios = <&gpio 57 0>; /* gpio PH1 */ + power-gpios = <&gpio 155 0>; /* gpio PT3 */ + bus-width = <8>; +}; |