Documentation/devicetree/bindings/phy/rockchip-usb-phy.txt

   1 ROCKCHIP USB2 PHY
   2
   3 Required properties:
   4  - compatible: matching the soc type, one of
   5      "rockchip,rk3066a-usb-phy"
   6      "rockchip,rk3188-usb-phy"
   7      "rockchip,rk3288-usb-phy"
   8  - #address-cells: should be 1
   9  - #size-cells: should be 0
  10
  11 Deprecated properties:
  12  - rockchip,grf : phandle to the syscon managing the "general
  13    register files" - phy should be a child of the GRF instead
  14
  15 Sub-nodes:
  16 Each PHY should be represented as a sub-node.
  17
  18 Sub-nodes
  19 required properties:
  20 - #phy-cells: should be 0
  21 - reg: PHY configure reg address offset in GRF
  22                 "0x320" - for PHY attach to OTG controller
  23                 "0x334" - for PHY attach to HOST0 controller
  24                 "0x348" - for PHY attach to HOST1 controller
  25
  26 Optional Properties:
  27 - clocks : phandle + clock specifier for the phy clocks
  28 - clock-names: string, clock name, must be "phyclk"
  29 - #clock-cells: for users of the phy-pll, should be 0
  30 - reset-names: Only allow the following entries:
  31  - phy-reset
  32 - resets: Must contain an entry for each entry in reset-names.
  33
  34 Example:
  35
  36 grf: syscon@ff770000 {
  37         compatible = "rockchip,rk3288-grf", "syscon", "simple-mfd";
  38
  39 ...
  40
  41         usbphy: phy {
  42                 compatible = "rockchip,rk3288-usb-phy";
  43                 #address-cells = <1>;
  44                 #size-cells = <0>;
  45
  46                 usbphy0: usb-phy0 {
  47                         #phy-cells = <0>;
  48                         reg = <0x320>;
  49                 };
  50         };
  51 };