Kernel-4.18.0-80.el8_ehci-st

ST USB EHCI controller

Required properties:

• compatible : must be “st,st-ehci-300x”

• reg : physical base addresses of the controller and length of memory mapped

         region
  

• interrupts : one EHCI interrupt should be described here

• pinctrl-names : a pinctrl state named “default” must be defined

• pinctrl-0 : phandle referencing pin configuration of the USB controller
  See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt

• clocks : phandle list of usb clocks

• clock-names : should be “ic” for interconnect clock and “clk48”
  See: Documentation/devicetree/bindings/clock/clock-bindings.txt

• phys : phandle for the PHY device

• phy-names : should be “usb”

• resets : phandle + reset specifier pairs to the powerdown and softreset lines

         of the USB IP
  

• reset-names : should be “power” and “softreset”
  See: Documentation/devicetree/bindings/reset/st,sti-powerdown.txt
  See: Documentation/devicetree/bindings/reset/reset.txt

Example:

ehci1: usb@fe203e00 {
    compatible = "st,st-ehci-300x";
    reg = <0xfe203e00 0x100>;
    interrupts = <GIC_SPI 148 IRQ_TYPE_NONE>;
    pinctrl-names = "default";
    pinctrl-0 = <&pinctrl_usb1>;
    clocks = <&clk_s_a1_ls 0>;
    phys = <&usb2_phy>;
    phy-names = "usb";

    resets = <&powerdown STIH416_USB1_POWERDOWN>,
         <&softreset STIH416_USB1_SOFTRESET>;
    reset-names = "power", "softreset";
};