Documentation/devicetree/bindings/mmc/arasan,sdhci.txt

   1 Device Tree Bindings for the Arasan SDHCI Controller
   2
   3   The bindings follow the mmc[1], clock[2], interrupt[3] and phy[4] bindings.
   4   Only deviations are documented here.
   5
   6   [1] Documentation/devicetree/bindings/mmc/mmc.txt
   7   [2] Documentation/devicetree/bindings/clock/clock-bindings.txt
   8   [3] Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
   9   [4] Documentation/devicetree/bindings/phy/phy-bindings.txt
  10
  11 Required Properties:
  12   - compatible: Compatibility string. Must be 'arasan,sdhci-8.9a' or
  13                 'arasan,sdhci-4.9a' or 'arasan,sdhci-5.1'
  14   - reg: From mmc bindings: Register location and length.
  15   - clocks: From clock bindings: Handles to clock inputs.
  16   - clock-names: From clock bindings: Tuple including "clk_xin" and "clk_ahb"
  17   - interrupts: Interrupt specifier
  18   - interrupt-parent: Phandle for the interrupt controller that services
  19                       interrupts for this device.
  20
  21 Required Properties for "arasan,sdhci-5.1":
  22   - phys: From PHY bindings: Phandle for the Generic PHY for arasan.
  23   - phy-names:  MUST be "phy_arasan".
  24
  25 Example:
  26         sdhci@e0100000 {
  27                 compatible = "arasan,sdhci-8.9a";
  28                 reg = <0xe0100000 0x1000>;
  29                 clock-names = "clk_xin", "clk_ahb";
  30                 clocks = <&clkc 21>, <&clkc 32>;
  31                 interrupt-parent = <&gic>;
  32                 interrupts = <0 24 4>;
  33         } ;
  34
  35         sdhci@e2800000 {
  36                 compatible = "arasan,sdhci-5.1";
  37                 reg = <0xe2800000 0x1000>;
  38                 clock-names = "clk_xin", "clk_ahb";
  39                 clocks = <&cru 8>, <&cru 18>;
  40                 interrupt-parent = <&gic>;
  41                 interrupts = <0 24 4>;
  42                 phys = <&emmc_phy>;
  43                 phy-names = "phy_arasan";
  44         } ;