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

   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 Required properties:
   7 - compatible : Should be "nvidia,<chip>-sdhci"
   8 - reg : Should contain SD/MMC registers location and length
   9 - interrupts : Should contain SD/MMC interrupt
  10
  11 Optional properties:
  12 - cd-gpios : Specify GPIOs for card detection
  13 - wp-gpios : Specify GPIOs for write protection
  14 - power-gpios : Specify GPIOs for power control
  15 - support-8bit : Boolean, indicates if 8-bit mode should be used.
  16
  17 Example:
  18
  19 sdhci@c8000200 {
  20         compatible = "nvidia,tegra20-sdhci";
  21         reg = <0xc8000200 0x200>;
  22         interrupts = <47>;
  23         cd-gpios = <&gpio 69 0>; /* gpio PI5 */
  24         wp-gpios = <&gpio 57 0>; /* gpio PH1 */
  25         power-gpios = <&gpio 155 0>; /* gpio PT3 */
  26         support-8bit;
  27 };