1ST USB EHCI controller 2 3Required 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 10See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt 11 - clocks : phandle list of usb clocks 12 - clock-names : should be "ic" for interconnect clock and "clk48" 13See: 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" 20See: Documentation/devicetree/bindings/reset/st,sti-powerdown.txt 21See: Documentation/devicetree/bindings/reset/reset.txt 22 23Example: 24 25 ehci1: usb@fe203e00 { 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 35 resets = <&powerdown STIH416_USB1_POWERDOWN>, 36 <&softreset STIH416_USB1_SOFTRESET>; 37 reset-names = "power", "softreset"; 38 }; 39