* AMD 10GbE PHY driver (amd-xgbe-phy)

Required properties:
- compatible: Should be "amd,xgbe-phy-seattle-v1a" and
  "ethernet-phy-ieee802.3-c45"
- reg: Address and length of the register sets for the device
   - SerDes Rx/Tx registers
   - SerDes integration registers (1/2)
   - SerDes integration registers (2/2)

Optional properties:
- amd,speed-set: Speed capabilities of the device
    0 - 1GbE and 10GbE (default)
    1 - 2.5GbE and 10GbE

Example:
	xgbe_phy@e1240800 {
		compatible = "amd,xgbe-phy-seattle-v1a", "ethernet-phy-ieee802.3-c45";
		reg = <0 0xe1240800 0 0x00400>,
		      <0 0xe1250000 0 0x00060>,
		      <0 0xe1250080 0 0x00004>;
		amd,speed-set = <0>;
	};