usb-nop-xceiv.txt

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    1 USB NOP PHY
    2 
    3 Required properties:
    4 - compatible: should be usb-nop-xceiv
    5 - #phy-cells: Must be 0
    6 
    7 Optional 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 
   26 Example:
   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 
   40 hsusb1_phy is a NOP USB PHY device that gets its clock from an oscillator
   41 and expects that clock to be configured to 19.2MHz by the NOP PHY driver.
   42 hsusb1_vcc_regulator provides power to the PHY and GPIO 7 controls RESET.
   43 GPIO 13 detects VBus insertion, and accordingly notifies the vbus-regulator.

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/usb/usb-nop-xceiv.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/usb/usb-nop-xceiv.txt