linux/Documentation/devicetree/bindings/net/phy.txt
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   1PHY nodes
   2
   3Required properties:
   4
   5 - device_type : Should be "ethernet-phy"
   6 - interrupts : <a b> where a is the interrupt number and b is a
   7   field that represents an encoding of the sense and level
   8   information for the interrupt.  This should be encoded based on
   9   the information in section 2) depending on the type of interrupt
  10   controller you have.
  11 - interrupt-parent : the phandle for the interrupt controller that
  12   services interrupts for this device.
  13 - reg : The ID number for the phy, usually a small integer
  14 - linux,phandle :  phandle for this node; likely referenced by an
  15   ethernet controller node.
  16
  17Optional Properties:
  18
  19- compatible: Compatible list, may contain
  20  "ethernet-phy-ieee802.3-c22" or "ethernet-phy-ieee802.3-c45" for
  21  PHYs that implement IEEE802.3 clause 22 or IEEE802.3 clause 45
  22  specifications. If neither of these are specified, the default is to
  23  assume clause 22. The compatible list may also contain other
  24  elements.
  25
  26Example:
  27
  28ethernet-phy@0 {
  29        compatible = "ethernet-phy-ieee802.3-c22";
  30        linux,phandle = <2452000>;
  31        interrupt-parent = <40000>;
  32        interrupts = <35 1>;
  33        reg = <0>;
  34        device_type = "ethernet-phy";
  35};
  36