linux/Documentation/devicetree/bindings/mmc/samsung-sdhci.txt
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   1* Samsung's SDHCI Controller device tree bindings
   2
   3Samsung's SDHCI controller is used as a connectivity interface with external
   4MMC, SD and eMMC storage mediums. This file documents differences between the
   5core mmc properties described by mmc.txt and the properties used by the
   6Samsung implmentation of the SDHCI controller.
   7
   8Required SoC Specific Properties:
   9- compatible: should be one of the following
  10  - "samsung,s3c6410-sdhci": For controllers compatible with s3c6410 sdhci
  11    controller.
  12  - "samsung,exynos4210-sdhci": For controllers compatible with Exynos4 sdhci
  13    controller.
  14
  15Required Board Specific Properties:
  16- pinctrl-0: Should specify pin control groups used for this controller.
  17- pinctrl-names: Should contain only one value - "default".
  18
  19Example:
  20        sdhci@12530000 {
  21                compatible = "samsung,exynos4210-sdhci";
  22                reg = <0x12530000 0x100>;
  23                interrupts = <0 75 0>;
  24                bus-width = <4>;
  25                cd-gpios = <&gpk2 2 0>;
  26                pinctrl-names = "default";
  27                pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4>;
  28        };
  29
  30        Note: This example shows both SoC specific and board specific properties
  31        in a single device node. The properties can be actually be separated
  32        into SoC specific node and board specific node.
  33