linux/Documentation/devicetree/bindings/net/cavium-mdio.txt
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   1* System Management Interface (SMI) / MDIO
   2
   3Properties:
   4- compatible: "cavium,octeon-3860-mdio"
   5
   6  Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
   7
   8- reg: The base address of the MDIO bus controller register bank.
   9
  10- #address-cells: Must be <1>.
  11
  12- #size-cells: Must be <0>.  MDIO addresses have no size component.
  13
  14Typically an MDIO bus might have several children.
  15
  16Example:
  17        mdio@1180000001800 {
  18                compatible = "cavium,octeon-3860-mdio";
  19                #address-cells = <1>;
  20                #size-cells = <0>;
  21                reg = <0x11800 0x00001800 0x0 0x40>;
  22
  23                ethernet-phy@0 {
  24                        ...
  25                        reg = <0>;
  26                };
  27        };
  28