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+* MDIO IO device
+
+The MDIO is a bus to which the PHY devices are connected.  For each
+device that exists on this bus, a child node should be created.  See
+the definition of the PHY node below for an example of how to define
+a PHY.
+
+Required properties:
+  - reg : Offset and length of the register set for the device
+  - compatible : Should define the compatible device type for the
+    mdio.  Currently, this is most likely to be "fsl,gianfar-mdio"
+
+Example:
+
+	mdio@24520 {
+		reg = <24520 20>;
+		compatible = "fsl,gianfar-mdio";
+
+		ethernet-phy@0 {
+			......
+		};
+	};
+
+
+* Gianfar-compatible ethernet nodes
+
+Required properties:
+
+  - device_type : Should be "network"
+  - model : Model of the device.  Can be "TSEC", "eTSEC", or "FEC"
+  - compatible : Should be "gianfar"
+  - reg : Offset and length of the register set for the device
+  - mac-address : List of bytes representing the ethernet address of
+    this controller
+  - interrupts : <a b> where a is the interrupt number and b is a
+    field that represents an encoding of the sense and level
+    information for the interrupt.  This should be encoded based on
+    the information in section 2) depending on the type of interrupt
+    controller you have.
+  - interrupt-parent : the phandle for the interrupt controller that
+    services interrupts for this device.
+  - phy-handle : The phandle for the PHY connected to this ethernet
+    controller.
+  - fixed-link : <a b c d e> where a is emulated phy id - choose any,
+    but unique to the all specified fixed-links, b is duplex - 0 half,
+    1 full, c is link speed - d#10/d#100/d#1000, d is pause - 0 no
+    pause, 1 pause, e is asym_pause - 0 no asym_pause, 1 asym_pause.
+
+Recommended properties:
+
+  - phy-connection-type : a string naming the controller/PHY interface type,
+    i.e., "mii" (default), "rmii", "gmii", "rgmii", "rgmii-id", "sgmii",
+    "tbi", or "rtbi".  This property is only really needed if the connection
+    is of type "rgmii-id", as all other connection types are detected by
+    hardware.
+
+
+Example:
+	ethernet@24000 {
+		#size-cells = <0>;
+		device_type = "network";
+		model = "TSEC";
+		compatible = "gianfar";
+		reg = <24000 1000>;
+		mac-address = [ 00 E0 0C 00 73 00 ];
+		interrupts = <d 3 e 3 12 3>;
+		interrupt-parent = <40000>;
+		phy-handle = <2452000>
+	};