1USB NOP PHY 2 3Required properties: 4- compatible: should be usb-nop-xceiv 5- #phy-cells: Must be 0 6 7Optional properties: 8- clocks: phandle to the PHY clock. Use as per Documentation/devicetree 9 /bindings/clock/clock-bindings.txt 10 This property is required if clock-frequency is specified. 11 12- clock-names: Should be "main_clk" 13 14- clock-frequency: the clock frequency (in Hz) that the PHY clock must 15 be configured to. 16 17- vcc-supply: phandle to the regulator that provides power to the PHY. 18 19- reset-gpios: Should specify the GPIO for reset. 20 21- vbus-detect-gpio: should specify the GPIO detecting a VBus insertion 22 (see Documentation/devicetree/bindings/gpio/gpio.txt) 23- vbus-regulator : should specifiy the regulator supplying current drawn from 24 the VBus line (see Documentation/devicetree/bindings/regulator/regulator.txt). 25 26Example: 27 28 hsusb1_phy { 29 compatible = "usb-nop-xceiv"; 30 clock-frequency = <19200000>; 31 clocks = <&osc 0>; 32 clock-names = "main_clk"; 33 vcc-supply = <&hsusb1_vcc_regulator>; 34 reset-gpios = <&gpio1 7 GPIO_ACTIVE_LOW>; 35 vbus-detect-gpio = <&gpio2 13 GPIO_ACTIVE_HIGH>; 36 vbus-regulator = <&vbus_regulator>; 37 #phy-cells = <0>; 38 }; 39 40hsusb1_phy is a NOP USB PHY device that gets its clock from an oscillator 41and expects that clock to be configured to 19.2MHz by the NOP PHY driver. 42hsusb1_vcc_regulator provides power to the PHY and GPIO 7 controls RESET. 43GPIO 13 detects VBus insertion, and accordingly notifies the vbus-regulator. 44