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Micrel PHY properties.

These properties cover the base properties Micrel PHYs.

Optional properties:

 - micrel,led-mode : LED mode value to set for PHYs with configurable LEDs.

              Configure the LED mode with single value. The list of PHYs and
	      the bits that are currently supported:

	      KSZ8001: register 0x1e, bits 15..14
	      KSZ8041: register 0x1e, bits 15..14
	      KSZ8021: register 0x1f, bits 5..4
	      KSZ8031: register 0x1f, bits 5..4
	      KSZ8051: register 0x1f, bits 5..4

              See the respective PHY datasheet for the mode values.

 - clocks, clock-names: contains clocks according to the common clock bindings.

              supported clocks:
	      - KSZ8021, KSZ8031: "rmii-ref": The RMII refence input clock. Used
		to determine the XI input clock.