Documentation/devicetree/bindings/usb/ehci-st.txt

   1 ST USB EHCI controller
   2
   3 Required properties:
   4  - compatible           : must be "st,st-ehci-300x"
   5  - reg                  : physical base addresses of the controller and length of memory mapped
   6                           region
   7  - interrupts           : one EHCI interrupt should be described here
   8  - pinctrl-names        : a pinctrl state named "default" must be defined
   9  - pinctrl-0            : phandle referencing pin configuration of the USB controller
  10 See: Documentation/devicetree/bindings/pinctrl/pinctrl-binding.txt
  11  - clocks               : phandle list of usb clocks
  12  - clock-names          : should be "ic" for interconnect clock and "clk48"
  13 See: Documentation/devicetree/bindings/clock/clock-bindings.txt
  14
  15  - phys                 : phandle for the PHY device
  16  - phy-names            : should be "usb"
  17  - resets               : phandle + reset specifier pairs to the powerdown and softreset lines
  18                           of the USB IP
  19  - reset-names          : should be "power" and "softreset"
  20 See: Documentation/devicetree/bindings/reset/st,sti-powerdown.txt
  21 See: Documentation/devicetree/bindings/reset/reset.txt
  22
  23 Example:
  24
  25         ehci1: usb@0xfe203e00 {
  26                 compatible = "st,st-ehci-300x";
  27                 reg = <0xfe203e00 0x100>;
  28                 interrupts = <GIC_SPI 148 IRQ_TYPE_NONE>;
  29                 pinctrl-names = "default";
  30                 pinctrl-0 = <&pinctrl_usb1>;
  31                 clocks = <&clk_s_a1_ls 0>;
  32                 phys = <&usb2_phy>;
  33                 phy-names = "usb";
  34                 status = "okay";
  35
  36                 resets = <&powerdown STIH416_USB1_POWERDOWN>,
  37                          <&softreset STIH416_USB1_SOFTRESET>;
  38                 reset-names = "power", "softreset";
  39         };