39 lines
1.3 KiB
Plaintext
39 lines
1.3 KiB
Plaintext
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* NVIDIA Tegra Secure Digital Host Controller
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This controller on Tegra family SoCs provides an interface for MMC, SD,
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and SDIO types of memory cards.
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This file documents differences between the core properties described
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by mmc.txt and the properties used by the sdhci-tegra driver.
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Required properties:
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- compatible : For Tegra20, must contain "nvidia,tegra20-sdhci".
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For Tegra30, must contain "nvidia,tegra30-sdhci". For Tegra114,
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must contain "nvidia,tegra114-sdhci". For Tegra124, must contain
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"nvidia,tegra124-sdhci". Otherwise, must contain "nvidia,<chip>-sdhci",
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plus one of the above, where <chip> is tegra132 or tegra210.
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- clocks : Must contain one entry, for the module clock.
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See ../clocks/clock-bindings.txt for details.
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- resets : Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- reset-names : Must include the following entries:
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- sdhci
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Optional properties:
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- power-gpios : Specify GPIOs for power control
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Example:
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sdhci@c8000200 {
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compatible = "nvidia,tegra20-sdhci";
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reg = <0xc8000200 0x200>;
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interrupts = <47>;
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clocks = <&tegra_car 14>;
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resets = <&tegra_car 14>;
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reset-names = "sdhci";
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cd-gpios = <&gpio 69 0>; /* gpio PI5 */
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wp-gpios = <&gpio 57 0>; /* gpio PH1 */
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power-gpios = <&gpio 155 0>; /* gpio PT3 */
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bus-width = <8>;
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};
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