0001 ST USB EHCI controller
0002
0003 Required properties:
0004 - compatible : must be "st,st-ehci-300x"
0005 - reg : physical base addresses of the controller and length of memory mapped
0006 region
0007 - interrupts : one EHCI interrupt should be described here
0008 - pinctrl-names : a pinctrl state named "default" must be defined
0009 - pinctrl-0 : phandle referencing pin configuration of the USB controller
0010 See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
0011 - clocks : phandle list of usb clocks
0012 - clock-names : should be "ic" for interconnect clock and "clk48"
0013 See: Documentation/devicetree/bindings/clock/clock-bindings.txt
0014
0015 - phys : phandle for the PHY device
0016 - phy-names : should be "usb"
0017 - resets : phandle + reset specifier pairs to the powerdown and softreset lines
0018 of the USB IP
0019 - reset-names : should be "power" and "softreset"
0020 See: Documentation/devicetree/bindings/reset/st,stih407-powerdown.yaml
0021 See: Documentation/devicetree/bindings/reset/reset.txt
0022
0023 Example:
0024
0025 ehci1: usb@fe203e00 {
0026 compatible = "st,st-ehci-300x";
0027 reg = <0xfe203e00 0x100>;
0028 interrupts = <GIC_SPI 148 IRQ_TYPE_NONE>;
0029 pinctrl-names = "default";
0030 pinctrl-0 = <&pinctrl_usb1>;
0031 clocks = <&clk_s_a1_ls 0>;
0032 phys = <&usb2_phy>;
0033 phy-names = "usb";
0034
0035 resets = <&powerdown STIH416_USB1_POWERDOWN>,
0036 <&softreset STIH416_USB1_SOFTRESET>;
0037 reset-names = "power", "softreset";
0038 };
