FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/phy/phy-lantiq-rcu-usb2.txt

     Lantiq XWAY SoC RCU USB 1.1/2.0 PHY binding
     ===========================================
     
     This binding describes the USB PHY hardware provided by the RCU module on the
     Lantiq XWAY SoCs.
     
     This node has to be a sub node of the Lantiq RCU block.
     
     -------------------------------------------------------------------------------
    Required properties (controller (parent) node):
    - compatible    : Should be one of
                            "lantiq,ase-usb2-phy"
                            "lantiq,danube-usb2-phy"
                            "lantiq,xrx100-usb2-phy"
                            "lantiq,xrx200-usb2-phy"
                            "lantiq,xrx300-usb2-phy"
    - reg           : Defines the following sets of registers in the parent
                      syscon device
                            - Offset of the USB PHY configuration register
                            - Offset of the USB Analog configuration
                              register (only for xrx200 and xrx200)
    - clocks        : References to the (PMU) "phy" clk gate.
    - clock-names   : Must be "phy"
    - resets        : References to the RCU USB configuration reset bits.
    - reset-names   : Must be one of the following:
                            "phy" (optional)
                            "ctrl" (shared)
    
    -------------------------------------------------------------------------------
    Example for the USB PHYs on an xRX200 SoC:
            usb_phy0: usb2-phy@18 {
                    compatible = "lantiq,xrx200-usb2-phy";
                    reg = <0x18 4>, <0x38 4>;
    
                    clocks = <&pmu PMU_GATE_USB0_PHY>;
                    clock-names = "phy";
                    resets = <&reset1 4 4>, <&reset0 4 4>;
                    reset-names = "phy", "ctrl";
                    #phy-cells = <0>;
            };

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