b53.txt

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    1 Broadcom BCM53xx Ethernet switches
    2 ==================================
    3 
    4 Required properties:
    5 
    6 - compatible: For external switch chips, compatible string must be exactly one
    7   of: "brcm,bcm5325"
    8       "brcm,bcm53115"
    9       "brcm,bcm53125"
   10       "brcm,bcm53128"
   11       "brcm,bcm5365"
   12       "brcm,bcm5395"
   13       "brcm,bcm5389"
   14       "brcm,bcm5397"
   15       "brcm,bcm5398"
   16 
   17   For the BCM11360 SoC, must be:
   18       "brcm,bcm11360-srab" and the mandatory "brcm,cygnus-srab" string
   19 
   20   For the BCM5310x SoCs with an integrated switch, must be one of:
   21       "brcm,bcm53010-srab"
   22       "brcm,bcm53011-srab"
   23       "brcm,bcm53012-srab"
   24       "brcm,bcm53018-srab"
   25       "brcm,bcm53019-srab" and the mandatory "brcm,bcm5301x-srab" string
   26 
   27   For the BCM5831X/BCM1140x SoCs with an integrated switch, must be one of:
   28       "brcm,bcm11404-srab"
   29       "brcm,bcm11407-srab"
   30       "brcm,bcm11409-srab"
   31       "brcm,bcm58310-srab"
   32       "brcm,bcm58311-srab"
   33       "brcm,bcm58313-srab" and the mandatory "brcm,omega-srab" string
   34 
   35   For the BCM585xx/586XX/88312 SoCs with an integrated switch, must be one of:
   36       "brcm,bcm58522-srab"
   37       "brcm,bcm58523-srab"
   38       "brcm,bcm58525-srab"
   39       "brcm,bcm58622-srab"
   40       "brcm,bcm58623-srab"
   41       "brcm,bcm58625-srab"
   42       "brcm,bcm88312-srab" and the mandatory "brcm,nsp-srab string
   43 
   44   For the BCM63xx/33xx SoCs with an integrated switch, must be one of:
   45       "brcm,bcm3384-switch"
   46       "brcm,bcm6328-switch"
   47       "brcm,bcm6368-switch" and the mandatory "brcm,bcm63xx-switch"
   48 
   49 Required properties for BCM585xx/586xx/88312 SoCs:
   50 
   51  - reg: a total of 3 register base addresses, the first one must be the
   52    Switch Register Access block base, the second is the port 5/4 mux
   53    configuration register and the third one is the SGMII configuration
   54    and status register base address.
   55 
   56  - interrupts: a total of 13 interrupts must be specified, in the following
   57    order: port 0-5, 7-8 link status change, then the integrated PHY interrupt,
   58    then the timestamping interrupt and the sleep timer interrupts for ports
   59    5,7,8.
   60 
   61 Optional properties for BCM585xx/586xx/88312 SoCs:
   62 
   63   - reg-names: a total of 3 names matching the 3 base register address, must
   64     be in the following order:
   65         "srab"
   66         "mux_config"
   67         "sgmii_config"
   68 
   69   - interrupt-names: a total of 13 names matching the 13 interrupts specified
   70     must be in the following order:
   71         "link_state_p0"
   72         "link_state_p1"
   73         "link_state_p2"
   74         "link_state_p3"
   75         "link_state_p4"
   76         "link_state_p5"
   77         "link_state_p7"
   78         "link_state_p8"
   79         "phy"
   80         "ts"
   81         "imp_sleep_timer_p5"
   82         "imp_sleep_timer_p7"
   83         "imp_sleep_timer_p8"
   84 
   85 See Documentation/devicetree/bindings/net/dsa/dsa.txt for a list of additional
   86 required and optional properties.
   87 
   88 Examples:
   89 
   90 Ethernet switch connected via MDIO to the host, CPU port wired to eth0:
   91 
   92         eth0: ethernet@10001000 {
   93                 compatible = "brcm,unimac";
   94                 reg = <0x10001000 0x1000>;
   95 
   96                 fixed-link {
   97                         speed = <1000>;
   98                         full-duplex;
   99                 };
  100         };
  101 
  102         mdio0: mdio@10000000 {
  103                 compatible = "brcm,unimac-mdio";
  104                 #address-cells = <1>;
  105                 #size-cells = <0>;
  106 
  107                 switch0: ethernet-switch@1e {
  108                         compatible = "brcm,bcm53125";
  109                         reg = <30>;
  110                         #address-cells = <1>;
  111                         #size-cells = <0>;
  112 
  113                         ports {
  114                                 #address-cells = <1>;
  115                                 #size-cells = <0>;
  116 
  117                                 port0@0 {
  118                                         reg = <0>;
  119                                         label = "lan1";
  120                                 };
  121 
  122                                 port1@1 {
  123                                         reg = <1>;
  124                                         label = "lan2";
  125                                 };
  126 
  127                                 port5@5 {
  128                                         reg = <5>;
  129                                         label = "cable-modem";
  130                                         fixed-link {
  131                                                 speed = <1000>;
  132                                                 full-duplex;
  133                                         };
  134                                         phy-mode = "rgmii-txid";
  135                                 };
  136 
  137                                 port8@8 {
  138                                         reg = <8>;
  139                                         label = "cpu";
  140                                         fixed-link {
  141                                                 speed = <1000>;
  142                                                 full-duplex;
  143                                         };
  144                                         phy-mode = "rgmii-txid";
  145                                         ethernet = <&eth0>;
  146                                 };
  147                         };
  148                 };
  149         };

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