The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/net/dsa/ksz.txt

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    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,ksz8765"
    9   - "microchip,ksz8794"
   10   - "microchip,ksz8795"
   11   - "microchip,ksz9477"
   12   - "microchip,ksz9897"
   13   - "microchip,ksz9896"
   14   - "microchip,ksz9567"
   15   - "microchip,ksz8565"
   16   - "microchip,ksz9893"
   17   - "microchip,ksz9563"
   18   - "microchip,ksz8563"
   19 
   20 Optional properties:
   21 
   22 - reset-gpios           : Should be a gpio specifier for a reset line
   23 - microchip,synclko-125 : Set if the output SYNCLKO frequency should be set to
   24                           125MHz instead of 25MHz.
   25 
   26 See Documentation/devicetree/bindings/net/dsa/dsa.txt for a list of additional
   27 required and optional properties.
   28 
   29 Examples:
   30 
   31 Ethernet switch connected via SPI to the host, CPU port wired to eth0:
   32 
   33         eth0: ethernet@10001000 {
   34                 fixed-link {
   35                         speed = <1000>;
   36                         full-duplex;
   37                 };
   38         };
   39 
   40         spi1: spi@f8008000 {
   41                 pinctrl-0 = <&pinctrl_spi_ksz>;
   42                 cs-gpios = <&pioC 25 0>;
   43                 id = <1>;
   44 
   45                 ksz9477: ksz9477@0 {
   46                         compatible = "microchip,ksz9477";
   47                         reg = <0>;
   48 
   49                         spi-max-frequency = <44000000>;
   50                         spi-cpha;
   51                         spi-cpol;
   52 
   53                         ports {
   54                                 #address-cells = <1>;
   55                                 #size-cells = <0>;
   56                                 port@0 {
   57                                         reg = <0>;
   58                                         label = "lan1";
   59                                 };
   60                                 port@1 {
   61                                         reg = <1>;
   62                                         label = "lan2";
   63                                 };
   64                                 port@2 {
   65                                         reg = <2>;
   66                                         label = "lan3";
   67                                 };
   68                                 port@3 {
   69                                         reg = <3>;
   70                                         label = "lan4";
   71                                 };
   72                                 port@4 {
   73                                         reg = <4>;
   74                                         label = "lan5";
   75                                 };
   76                                 port@5 {
   77                                         reg = <5>;
   78                                         label = "cpu";
   79                                         ethernet = <&eth0>;
   80                                         fixed-link {
   81                                                 speed = <1000>;
   82                                                 full-duplex;
   83                                         };
   84                                 };
   85                         };
   86                 };
   87                 ksz8565: ksz8565@0 {
   88                         compatible = "microchip,ksz8565";
   89                         reg = <0>;
   90 
   91                         spi-max-frequency = <44000000>;
   92                         spi-cpha;
   93                         spi-cpol;
   94 
   95                         ports {
   96                                 #address-cells = <1>;
   97                                 #size-cells = <0>;
   98                                 port@0 {
   99                                         reg = <0>;
  100                                         label = "lan1";
  101                                 };
  102                                 port@1 {
  103                                         reg = <1>;
  104                                         label = "lan2";
  105                                 };
  106                                 port@2 {
  107                                         reg = <2>;
  108                                         label = "lan3";
  109                                 };
  110                                 port@3 {
  111                                         reg = <3>;
  112                                         label = "lan4";
  113                                 };
  114                                 port@6 {
  115                                         reg = <6>;
  116                                         label = "cpu";
  117                                         ethernet = <&eth0>;
  118                                         fixed-link {
  119                                                 speed = <1000>;
  120                                                 full-duplex;
  121                                         };
  122                                 };
  123                         };
  124                 };
  125         };

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