[POWERPC] Convert to mac-address for ethernet MAC address data.

Also accept "local-mac-address".  However the old "address"
is now obsolete, but accepted for backwards compatibility.
It should be removed after all device trees have been
converted to use "mac-address".
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Documentation/powerpc/booting-without-of.txt

@@ -1196,7 +1196,7 @@ platforms are moved over to use the flattened-device-tree model.
     - 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
-    - address : List of bytes representing the ethernet address of
+    - 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
@@ -1216,7 +1216,7 @@ platforms are moved over to use the flattened-device-tree model.
 		model = "TSEC";
 		compatible = "gianfar";
 		reg = <24000 1000>;
-		address = [ 00 E0 0C 00 73 00 ];
+		mac-address = [ 00 E0 0C 00 73 00 ];
 		interrupts = <d 3 e 3 12 3>;
 		interrupt-parent = <40000>;
 		phy-handle = <2452000>
@@ -1498,7 +1498,7 @@ not necessary as they are usually the same as the root node.
 			model = "TSEC";
 			compatible = "gianfar";
 			reg = <24000 1000>;
-			address = [ 00 E0 0C 00 73 00 ];
+			mac-address = [ 00 E0 0C 00 73 00 ];
 			interrupts = <d 3 e 3 12 3>;
 			interrupt-parent = <40000>;
 			phy-handle = <2452000>;
@@ -1511,7 +1511,7 @@ not necessary as they are usually the same as the root node.
 			model = "TSEC";
 			compatible = "gianfar";
 			reg = <25000 1000>;
-			address = [ 00 E0 0C 00 73 01 ];
+			mac-address = [ 00 E0 0C 00 73 01 ];
 			interrupts = <13 3 14 3 18 3>;
 			interrupt-parent = <40000>;
 			phy-handle = <2452001>;
@@ -1524,7 +1524,7 @@ not necessary as they are usually the same as the root node.
 			model = "FEC";
 			compatible = "gianfar";
 			reg = <26000 1000>;
-			address = [ 00 E0 0C 00 73 02 ];
+			mac-address = [ 00 E0 0C 00 73 02 ];
 			interrupts = <19 3>;
 			interrupt-parent = <40000>;
 			phy-handle = <2452002>;

arch/powerpc/sysdev/fsl_soc.c

@@ -169,7 +169,15 @@ static int __init gfar_of_init(void)
 			goto err;
 		}
 
+		mac_addr = get_property(np, "local-mac-address", NULL);
+		if (mac_addr == NULL)
+			mac_addr = get_property(np, "mac-address", NULL);
+		if (mac_addr == NULL) {
+			/* Obsolete */
 			mac_addr = get_property(np, "address", NULL);
+		}
+
+		if (mac_addr)
 			memcpy(gfar_data.mac_addr, mac_addr, 6);
 
 		if (model && !strcasecmp(model, "TSEC"))