Documentation/devicetree/bindings/net/brcm,bcm7445-switch-v4.0.txt

   1 * Broadcom Starfighter 2 integrated swich
   2
   3 Required properties:
   4
   5 - compatible: should be "brcm,bcm7445-switch-v4.0"
   6 - reg: addresses and length of the register sets for the device, must be 6
   7   pairs of register addresses and lengths
   8 - interrupts: interrupts for the devices, must be two interrupts
   9 - #address-cells: must be 1, see dsa/dsa.txt
  10 - #size-cells: must be 0, see dsa/dsa.txt
  11
  12 Deprecated binding required properties:
  13
  14 - dsa,mii-bus: phandle to the MDIO bus controller, see dsa/dsa.txt
  15 - dsa,ethernet: phandle to the CPU network interface controller, see dsa/dsa.txt
  16 - #address-cells: must be 2, see dsa/dsa.txt
  17
  18 Subnodes:
  19
  20 The integrated switch subnode should be specified according to the binding
  21 described in dsa/dsa.txt.
  22
  23 Optional properties:
  24
  25 - reg-names: litteral names for the device base register addresses, when present
  26   must be: "core", "reg", "intrl2_0", "intrl2_1", "fcb", "acb"
  27
  28 - interrupt-names: litternal names for the device interrupt lines, when present
  29   must be: "switch_0" and "switch_1"
  30
  31 - brcm,num-gphy: specify the maximum number of integrated gigabit PHYs in the
  32   switch
  33
  34 - brcm,num-rgmii-ports: specify the maximum number of RGMII interfaces supported
  35   by the switch
  36
  37 - brcm,fcb-pause-override: boolean property, if present indicates that the switch
  38   supports Failover Control Block pause override capability
  39
  40 - brcm,acb-packets-inflight: boolean property, if present indicates that the switch
  41   Admission Control Block supports reporting the number of packets in-flight in a
  42   switch queue
  43
  44 Example:
  45
  46 switch_top@f0b00000 {
  47         compatible = "simple-bus";
  48         #size-cells = <1>;
  49         #address-cells = <1>;
  50         ranges = <0 0xf0b00000 0x40804>;
  51
  52         ethernet_switch@0 {
  53                 compatible = "brcm,bcm7445-switch-v4.0";
  54                 #size-cells = <0>;
  55                 #address-cells = <1>;
  56                 reg = <0x0 0x40000
  57                         0x40000 0x110
  58                         0x40340 0x30
  59                         0x40380 0x30
  60                         0x40400 0x34
  61                         0x40600 0x208>;
  62                 reg-names = "core", "reg", intrl2_0", "intrl2_1",
  63                             "fcb, "acb";
  64                 interrupts = <0 0x18 0
  65                                 0 0x19 0>;
  66                 brcm,num-gphy = <1>;
  67                 brcm,num-rgmii-ports = <2>;
  68                 brcm,fcb-pause-override;
  69                 brcm,acb-packets-inflight;
  70
  71                 ports {
  72                         #address-cells = <1>;
  73                         #size-cells = <0>;
  74
  75                         port@0 {
  76                                 label = "gphy";
  77                                 reg = <0>;
  78                         };
  79                 };
  80         };
  81 };
  82
  83 Example using the old DSA DeviceTree binding:
  84
  85 switch_top@f0b00000 {
  86         compatible = "simple-bus";
  87         #size-cells = <1>;
  88         #address-cells = <1>;
  89         ranges = <0 0xf0b00000 0x40804>;
  90
  91         ethernet_switch@0 {
  92                 compatible = "brcm,bcm7445-switch-v4.0";
  93                 #size-cells = <0>;
  94                 #address-cells = <2>;
  95                 reg = <0x0 0x40000
  96                         0x40000 0x110
  97                         0x40340 0x30
  98                         0x40380 0x30
  99                         0x40400 0x34
 100                         0x40600 0x208>;
 101                 interrupts = <0 0x18 0
 102                                 0 0x19 0>;
 103                 brcm,num-gphy = <1>;
 104                 brcm,num-rgmii-ports = <2>;
 105                 brcm,fcb-pause-override;
 106                 brcm,acb-packets-inflight;
 107
 108                 ...
 109                 switch@0 {
 110                         reg = <0 0>;
 111                         #size-cells = <0>;
 112                         #address-cells <1>;
 113
 114                         port@0 {
 115                                 label = "gphy";
 116                                 reg = <0>;
 117                         };
 118                         ...
 119                 };
 120         };
 121 };