[POWERPC] 4xx: Some EMAC related changes in Canyonlands & Glacier dts files

This patch fixes some problems in the Canyonlands 460EX and Glacier 460GT
dts files:

- Add "mdio-device = <&EMAC0>" to all all EMAC's except for EMAC0 itself
  (the 460EX/GT only can access the PHY via the EMAC0 instance)
- Add TAH support to Canyonlands dts

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
diff --git a/arch/powerpc/boot/dts/glacier.dts b/arch/powerpc/boot/dts/glacier.dts
index 7a7c9bf..958a5ca 100644
--- a/arch/powerpc/boot/dts/glacier.dts
+++ b/arch/powerpc/boot/dts/glacier.dts
@@ -287,9 +287,10 @@
 				rgmii-device = <&RGMII0>;
 				rgmii-channel = <1>;
 				tah-device = <&TAH1>;
-				tah-channel = <0>;
+				tah-channel = <1>;
 				has-inverted-stacr-oc;
 				has-new-stacr-staopc;
+				mdio-device = <&EMAC0>;
 			};
 
 			EMAC2: ethernet@ef601100 {
@@ -317,6 +318,7 @@
 				rgmii-channel = <0>;
 				has-inverted-stacr-oc;
 				has-new-stacr-staopc;
+				mdio-device = <&EMAC0>;
 			};
 
 			EMAC3: ethernet@ef601200 {
@@ -344,6 +346,7 @@
 				rgmii-channel = <1>;
 				has-inverted-stacr-oc;
 				has-new-stacr-staopc;
+				mdio-device = <&EMAC0>;
 			};
 		};