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