| * 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 : For Tegra20, must contain "nvidia,tegra20-sdhci". |
| For Tegra30, must contain "nvidia,tegra30-sdhci". For Tegra114, |
| must contain "nvidia,tegra114-sdhci". For Tegra124, must contain |
| "nvidia,tegra124-sdhci". Otherwise, must contain "nvidia,<chip>-sdhci", |
| plus one of the above, where <chip> is tegra132 or tegra210. |
| - 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>; |
| }; |
