Kernel-4.18.0-80.el8_mt7530

Mediatek MT7530 Ethernet switch

Required properties:

• compatible: Must be compatible = “mediatek,mt7530”;
• #address-cells: Must be 1.
• #size-cells: Must be 0.
• mediatek,mcm: Boolean; if defined, indicates that either MT7530 is the part
  on multi-chip module belong to MT7623A has or the remotely standalone
  chip as the function MT7623N reference board provided for.
• core-supply: Phandle to the regulator node necessary for the core power.
• io-supply: Phandle to the regulator node necessary for the I/O power.
  See Documentation/devicetree/bindings/regulator/mt6323-regulator.txt
  for details for the regulator setup on these boards.

If the property mediatek,mcm isn’t defined, following property is required

• reset-gpios: Should be a gpio specifier for a reset line.

Else, following properties are required

• resets : Phandle pointing to the system reset controller with
  line index for the ethsys.
• reset-names : Should be set to “mcm”.

Required properties for the child nodes within ports container:

• reg: Port address described must be 6 for CPU port and from 0 to 5 for
  user ports.
• phy-mode: String, must be either “trgmii” or “rgmii” for port labeled
  “cpu”.

See Documentation/devicetree/bindings/net/dsa/dsa.txt for a list of additional
required, optional properties and how the integrated switch subnodes must
be specified.

Example:

&mdio0 {
    switch@0 {
        compatible = "mediatek,mt7530";
        #address-cells = <1>;
        #size-cells = <0>;
        reg = <0>;

        core-supply = <&mt6323_vpa_reg>;
        io-supply = <&mt6323_vemc3v3_reg>;
        reset-gpios = <&pio 33 0>;

        ports {
            #address-cells = <1>;
            #size-cells = <0>;
            reg = <0>;
            port@0 {
                reg = <0>;
                label = "lan0";
            };

            port@1 {
                reg = <1>;
                label = "lan1";
            };

            port@2 {
                reg = <2>;
                label = "lan2";
            };

            port@3 {
                reg = <3>;
                label = "lan3";
            };

            port@4 {
                reg = <4>;
                label = "wan";
            };

            port@6 {
                reg = <6>;
                label = "cpu";
                ethernet = <&gmac0>;
                phy-mode = "trgmii";
                fixed-link {
                    speed = <1000>;
                    full-duplex;
                };
            };
        };
    };
};