Kernel-4.18.0-80.el8_ksz

Microchip KSZ Series Ethernet switches

Required properties:

• compatible: For external switch chips, compatible string must be exactly one
  of: “microchip,ksz9477”

See Documentation/devicetree/bindings/net/dsa/dsa.txt for a list of additional
required and optional properties.

Examples:

Ethernet switch connected via SPI to the host, CPU port wired to eth0:

                         eth0: ethernet@10001000 {
                                         fixed-link {
                                                         speed = <1000>;
                                                         full-duplex;
                                         };
                         };

                         spi1: spi@f8008000 {
                                         pinctrl-0 = <&pinctrl_spi_ksz>;
                                         cs-gpios = <&pioC 25 0>;
                                         id = <1>;

                                         ksz9477: ksz9477@0 {
                                                         compatible = "microchip,ksz9477";
                                                         reg = <0>;

                                                         spi-max-frequency = <44000000>;
                                                         spi-cpha;
                                                         spi-cpol;

                                                         ports {
                                                                         #address-cells = <1>;
                                                                         #size-cells = <0>;
                                                                         port@0 {
                                                                                         reg = <0>;
                                                                                         label = "lan1";
                                                                         };
                                                                         port@1 {
                                                                                         reg = <1>;
                                                                                         label = "lan2";
                                                                         };
                                                                         port@2 {
                                                                                         reg = <2>;
                                                                                         label = "lan3";
                                                                         };
                                                                         port@3 {
                                                                                         reg = <3>;
                                                                                         label = "lan4";
                                                                         };
                                                                         port@4 {
                                                                                         reg = <4>;
                                                                                         label = "lan5";
                                                                         };
                                                                         port@5 {
                                                                                         reg = <5>;
                                                                                         label = "cpu";
                                                                                         ethernet = <&eth0>;
                                                                                         fixed-link {
                                                                                                         speed = <1000>;
                                                                                                         full-duplex;
                                                                                         };
                                                                         };
                                                         };
                                         };
                         };