Kernel-4.18.0-80.el8_phy-rockchip-inno-usb2

ROCKCHIP USB2.0 PHY WITH INNO IP BLOCK

Required properties (phy (parent) node):

• compatible : should be one of the listed compatibles:
  • “rockchip,rk3228-usb2phy”
  • “rockchip,rk3328-usb2phy”
  • “rockchip,rk3366-usb2phy”
  • “rockchip,rk3399-usb2phy”
  • “rockchip,rv1108-usb2phy”
• reg : the address offset of grf for usb-phy configuration.
• #clock-cells : should be 0.
• clock-output-names : specify the 480m output clock name.

Optional properties:

• clocks : phandle + phy specifier pair, for the input clock of phy.
• clock-names : input clock name of phy, must be “phyclk”.
• assigned-clocks : phandle of usb 480m clock.
• assigned-clock-parents : parent of usb 480m clock, select between

    usb-phy output 480m and xin24m.
    Refer to clk/clock-bindings.txt for generic clock
    consumer properties.
  

• rockchip,usbgrf : phandle to the syscon managing the “usb general

    register files". When set driver will request its
    phandle as one companion-grf for some special SoCs
    (e.g RV1108).
  

Required nodes : a sub-node is required for each port the phy provides.
The sub-node name is used to identify host or otg port,
and shall be the following entries:
* “otg-port” : the name of otg port.
* “host-port” : the name of host port.

Required properties (port (child) node):

• #phy-cells : must be 0. See ./phy-bindings.txt for details.
• interrupts : specify an interrupt for each entry in interrupt-names.
• interrupt-names : a list which should be one of the following cases:
  Regular case:
  • “otg-id” : for the otg id interrupt.
  • “otg-bvalid” : for the otg vbus interrupt.
  • “linestate” : for the host/otg linestate interrupt.
    Some SoCs use one interrupt with the above muxed together, so for these
  • “otg-mux” : otg-port interrupt, which mux otg-id/otg-bvalid/linestate
    to one.

Optional properties:

• phy-supply : phandle to a regulator that provides power to VBUS.

   See ./phy-bindings.txt for details.
  

Example:

grf: syscon@ff770000 {
compatible = “rockchip,rk3366-grf”, “syscon”, “simple-mfd”;
#address-cells = <1>;
#size-cells = <1>;

…

u2phy: usb2-phy@700 {
    compatible = "rockchip,rk3366-usb2phy";
    reg = <0x700 0x2c>;
    #clock-cells = <0>;
    clock-output-names = "sclk_otgphy0_480m";

    u2phy_otg: otg-port {
        #phy-cells = <0>;
        interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
                 <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>,
                 <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
        interrupt-names = "otg-id", "otg-bvalid", "linestate";
    };

    u2phy_host: host-port {
        #phy-cells = <0>;
        interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
        interrupt-names = "linestate";
    };
};

};