Documentation/devicetree/bindings/net/dsa/ar9331.txt

   1 Atheros AR9331 built-in switch
   2 =============================
   3
   4 It is a switch built-in to Atheros AR9331 WiSoC and addressable over internal
   5 MDIO bus. All PHYs are built-in as well.
   6
   7 Required properties:
   8
   9  - compatible: should be: "qca,ar9331-switch"
  10  - reg: Address on the MII bus for the switch.
  11  - resets : Must contain an entry for each entry in reset-names.
  12  - reset-names : Must include the following entries: "switch"
  13  - interrupt-parent: Phandle to the parent interrupt controller
  14  - interrupts: IRQ line for the switch
  15  - interrupt-controller: Indicates the switch is itself an interrupt
  16    controller. This is used for the PHY interrupts.
  17  - #interrupt-cells: must be 1
  18  - mdio: Container of PHY and devices on the switches MDIO bus.
  19
  20 See Documentation/devicetree/bindings/net/dsa/dsa.txt for a list of additional
  21 required and optional properties.
  22 Examples:
  23
  24 eth0: ethernet@19000000 {
  25         compatible = "qca,ar9330-eth";
  26         reg = <0x19000000 0x200>;
  27         interrupts = <4>;
  28
  29         resets = <&rst 9>, <&rst 22>;
  30         reset-names = "mac", "mdio";
  31         clocks = <&pll ATH79_CLK_AHB>, <&pll ATH79_CLK_AHB>;
  32         clock-names = "eth", "mdio";
  33
  34         phy-mode = "mii";
  35         phy-handle = <&phy_port4>;
  36 };
  37
  38 eth1: ethernet@1a000000 {
  39         compatible = "qca,ar9330-eth";
  40         reg = <0x1a000000 0x200>;
  41         interrupts = <5>;
  42         resets = <&rst 13>, <&rst 23>;
  43         reset-names = "mac", "mdio";
  44         clocks = <&pll ATH79_CLK_AHB>, <&pll ATH79_CLK_AHB>;
  45         clock-names = "eth", "mdio";
  46
  47         phy-mode = "gmii";
  48
  49         fixed-link {
  50                 speed = <1000>;
  51                 full-duplex;
  52         };
  53
  54         mdio {
  55                 #address-cells = <1>;
  56                 #size-cells = <0>;
  57
  58                 switch10: switch@10 {
  59                         #address-cells = <1>;
  60                         #size-cells = <0>;
  61
  62                         compatible = "qca,ar9331-switch";
  63                         reg = <0x10>;
  64                         resets = <&rst 8>;
  65                         reset-names = "switch";
  66
  67                         interrupt-parent = <&miscintc>;
  68                         interrupts = <12>;
  69
  70                         interrupt-controller;
  71                         #interrupt-cells = <1>;
  72
  73                         ports {
  74                                 #address-cells = <1>;
  75                                 #size-cells = <0>;
  76
  77                                 switch_port0: port@0 {
  78                                         reg = <0x0>;
  79                                         ethernet = <&eth1>;
  80
  81                                         phy-mode = "gmii";
  82
  83                                         fixed-link {
  84                                                 speed = <1000>;
  85                                                 full-duplex;
  86                                         };
  87                                 };
  88
  89                                 switch_port1: port@1 {
  90                                         reg = <0x1>;
  91                                         phy-handle = <&phy_port0>;
  92                                         phy-mode = "internal";
  93                                 };
  94
  95                                 switch_port2: port@2 {
  96                                         reg = <0x2>;
  97                                         phy-handle = <&phy_port1>;
  98                                         phy-mode = "internal";
  99                                 };
 100
 101                                 switch_port3: port@3 {
 102                                         reg = <0x3>;
 103                                         phy-handle = <&phy_port2>;
 104                                         phy-mode = "internal";
 105                                 };
 106
 107                                 switch_port4: port@4 {
 108                                         reg = <0x4>;
 109                                         phy-handle = <&phy_port3>;
 110                                         phy-mode = "internal";
 111                                 };
 112                         };
 113
 114                         mdio {
 115                                 #address-cells = <1>;
 116                                 #size-cells = <0>;
 117
 118                                 interrupt-parent = <&switch10>;
 119
 120                                 phy_port0: phy@0 {
 121                                         reg = <0x0>;
 122                                         interrupts = <0>;
 123                                 };
 124
 125                                 phy_port1: phy@1 {
 126                                         reg = <0x1>;
 127                                         interrupts = <0>;
 128                                 };
 129
 130                                 phy_port2: phy@2 {
 131                                         reg = <0x2>;
 132                                         interrupts = <0>;
 133                                 };
 134
 135                                 phy_port3: phy@3 {
 136                                         reg = <0x3>;
 137                                         interrupts = <0>;
 138                                 };
 139
 140                                 phy_port4: phy@4 {
 141                                         reg = <0x4>;
 142                                         interrupts = <0>;
 143                                 };
 144                         };
 145                 };
 146         };
 147 };