linux/Documentation/devicetree/bindings/net/dsa/ksz.txt

Microchip KSZ Series Ethernet switches
==================================

Required properties:

- compatible: For external switch chips, compatible string must be exactly one
  of the following:
  - "microchip,ksz9477"
  - "microchip,ksz9897"

Optional properties:

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

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;
                                                                                             };
                                                                             };
                                                             };
                                             };
                             };