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

   1 Microchip KSZ Series Ethernet switches
   2 ==================================
   3
   4 Required properties:
   5
   6 - compatible: For external switch chips, compatible string must be exactly one
   7   of the following:
   8   - "microchip,ksz9477"
   9   - "microchip,ksz9897"
  10   - "microchip,ksz9896"
  11   - "microchip,ksz9567"
  12   - "microchip,ksz8565"
  13   - "microchip,ksz9893"
  14   - "microchip,ksz9563"
  15   - "microchip,ksz8563"
  16
  17 Optional properties:
  18
  19 - reset-gpios           : Should be a gpio specifier for a reset line
  20 - microchip,synclko-125 : Set if the output SYNCLKO frequency should be set to
  21                           125MHz instead of 25MHz.
  22
  23 See Documentation/devicetree/bindings/net/dsa/dsa.txt for a list of additional
  24 required and optional properties.
  25
  26 Examples:
  27
  28 Ethernet switch connected via SPI to the host, CPU port wired to eth0:
  29
  30         eth0: ethernet@10001000 {
  31                 fixed-link {
  32                         speed = <1000>;
  33                         full-duplex;
  34                 };
  35         };
  36
  37         spi1: spi@f8008000 {
  38                 pinctrl-0 = <&pinctrl_spi_ksz>;
  39                 cs-gpios = <&pioC 25 0>;
  40                 id = <1>;
  41
  42                 ksz9477: ksz9477@0 {
  43                         compatible = "microchip,ksz9477";
  44                         reg = <0>;
  45
  46                         spi-max-frequency = <44000000>;
  47                         spi-cpha;
  48                         spi-cpol;
  49
  50                         ports {
  51                                 #address-cells = <1>;
  52                                 #size-cells = <0>;
  53                                 port@0 {
  54                                         reg = <0>;
  55                                         label = "lan1";
  56                                 };
  57                                 port@1 {
  58                                         reg = <1>;
  59                                         label = "lan2";
  60                                 };
  61                                 port@2 {
  62                                         reg = <2>;
  63                                         label = "lan3";
  64                                 };
  65                                 port@3 {
  66                                         reg = <3>;
  67                                         label = "lan4";
  68                                 };
  69                                 port@4 {
  70                                         reg = <4>;
  71                                         label = "lan5";
  72                                 };
  73                                 port@5 {
  74                                         reg = <5>;
  75                                         label = "cpu";
  76                                         ethernet = <&eth0>;
  77                                         fixed-link {
  78                                                 speed = <1000>;
  79                                                 full-duplex;
  80                                         };
  81                                 };
  82                         };
  83                 };
  84                 ksz8565: ksz8565@0 {
  85                         compatible = "microchip,ksz8565";
  86                         reg = <0>;
  87
  88                         spi-max-frequency = <44000000>;
  89                         spi-cpha;
  90                         spi-cpol;
  91
  92                         ports {
  93                                 #address-cells = <1>;
  94                                 #size-cells = <0>;
  95                                 port@0 {
  96                                         reg = <0>;
  97                                         label = "lan1";
  98                                 };
  99                                 port@1 {
 100                                         reg = <1>;
 101                                         label = "lan2";
 102                                 };
 103                                 port@2 {
 104                                         reg = <2>;
 105                                         label = "lan3";
 106                                 };
 107                                 port@3 {
 108                                         reg = <3>;
 109                                         label = "lan4";
 110                                 };
 111                                 port@6 {
 112                                         reg = <6>;
 113                                         label = "cpu";
 114                                         ethernet = <&eth0>;
 115                                         fixed-link {
 116                                                 speed = <1000>;
 117                                                 full-duplex;
 118                                         };
 119                                 };
 120                         };
 121                 };
 122         };