Documentation/devicetree/bindings/phy/brcm,nsp-usb3-phy.txt

   1 Broadcom USB3 phy binding for northstar plus SoC
   2 The USB3 phy is internal to the SoC and is accessed using mdio interface.
   3
   4 Required mdio bus properties:
   5 - reg: Should be 0x0 for SoC internal USB3 phy
   6 - #address-cells: must be 1
   7 - #size-cells: must be 0
   8
   9 Required USB3 PHY properties:
  10 - compatible: should be "brcm,nsp-usb3-phy"
  11 - reg: USB3 Phy address on SoC internal MDIO bus and it should be 0x10.
  12 - usb3-ctrl-syscon: handler of syscon node defining physical address
  13   of usb3 control register.
  14 - #phy-cells: must be 0
  15
  16 Required usb3 control properties:
  17 - compatible: should be "brcm,nsp-usb3-ctrl"
  18 - reg: offset and length of the control registers
  19
  20 Example:
  21
  22         mdio@0 {
  23                 reg = <0x0>;
  24                 #address-cells = <1>;
  25                 #size-cells = <0>;
  26
  27                 usb3_phy: usb-phy@10 {
  28                         compatible = "brcm,nsp-usb3-phy";
  29                         reg = <0x10>;
  30                         usb3-ctrl-syscon = <&usb3_ctrl>;
  31                         #phy-cells = <0>;
  32                         status = "disabled";
  33                 };
  34         };
  35
  36         usb3_ctrl: syscon@104408 {
  37                 compatible = "brcm,nsp-usb3-ctrl", "syscon";
  38                 reg = <0x104408 0x3fc>;
  39         };