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

   1 Marvell DSA Switch Device Tree Bindings
   2 ---------------------------------------
   3
   4 WARNING: This binding is currently unstable. Do not program it into a
   5 FLASH never to be changed again. Once this binding is stable, this
   6 warning will be removed.
   7
   8 If you need a stable binding, use the old dsa.txt binding.
   9
  10 Marvell Switches are MDIO devices. The following properties should be
  11 placed as a child node of an mdio device.
  12
  13 The properties described here are those specific to Marvell devices.
  14 Additional required and optional properties can be found in dsa.txt.
  15
  16 Required properties:
  17 - compatible            : Should be one of "marvell,mv88e6085" or
  18                           "marvell,mv88e6190"
  19 - reg                   : Address on the MII bus for the switch.
  20
  21 Optional properties:
  22
  23 - reset-gpios           : Should be a gpio specifier for a reset line
  24 - interrupt-parent      : Parent interrupt controller
  25 - interrupts            : Interrupt from the switch
  26 - interrupt-controller  : Indicates the switch is itself an interrupt
  27                           controller. This is used for the PHY interrupts.
  28 #interrupt-cells = <2>  : Controller uses two cells, number and flag
  29 - mdio                  : Container of PHY and devices on the switches MDIO
  30                           bus.
  31 - mdio?         : Container of PHYs and devices on the external MDIO
  32                           bus. The node must contains a compatible string of
  33                           "marvell,mv88e6xxx-mdio-external"
  34
  35 Example:
  36
  37         mdio {
  38                 #address-cells = <1>;
  39                 #size-cells = <0>;
  40                 interrupt-parent = <&gpio0>;
  41                 interrupts = <27 IRQ_TYPE_LEVEL_LOW>;
  42                 interrupt-controller;
  43                 #interrupt-cells = <2>;
  44
  45                 switch0: switch@0 {
  46                         compatible = "marvell,mv88e6085";
  47                         reg = <0>;
  48                         reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
  49                 };
  50                 mdio {
  51                         #address-cells = <1>;
  52                         #size-cells = <0>;
  53                         switch1phy0: switch1phy0@0 {
  54                                 reg = <0>;
  55                                 interrupt-parent = <&switch0>;
  56                                 interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
  57                         };
  58                 };
  59         };
  60
  61         mdio {
  62                 #address-cells = <1>;
  63                 #size-cells = <0>;
  64                 interrupt-parent = <&gpio0>;
  65                 interrupts = <27 IRQ_TYPE_LEVEL_LOW>;
  66                 interrupt-controller;
  67                 #interrupt-cells = <2>;
  68
  69                 switch0: switch@0 {
  70                         compatible = "marvell,mv88e6390";
  71                         reg = <0>;
  72                         reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
  73                 };
  74                 mdio {
  75                         #address-cells = <1>;
  76                         #size-cells = <0>;
  77                         switch1phy0: switch1phy0@0 {
  78                                 reg = <0>;
  79                                 interrupt-parent = <&switch0>;
  80                                 interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
  81                         };
  82                 };
  83
  84                 mdio1 {
  85                         compatible = "marvell,mv88e6xxx-mdio-external";
  86                         #address-cells = <1>;
  87                         #size-cells = <0>;
  88                         switch1phy9: switch1phy0@9 {
  89                                 reg = <9>;
  90                         };
  91                 };
  92         };