kirkwood: update support for ib62x0

The board is optimized for ubi(fs) and boots OpenWrt without changes to uboot
environment if OpenWrt's uboot package is used. In order to flash the image run
following commands in uboot shell:

nand erase 0x200000 0xfe00000
ubi part root ; ubi remove rootfs ; ubi create rootfs
tftpboot 0x800000 openwrt-kirkwood-ib62x0-rootfs.ubifs ; ubi write 0x800000 rootfs ${filesize} ; reset

Signed-off-by: Luka Perkov <luka@openwrt.org>
Tested-by: Luka Perkov <luka@openwrt.org>
CC: Imre Kaloz <kaloz@openwrt.org>

SVN-Revision: 39592

target/linux/kirkwood/patches-3.10/110-ib62x0.patch

@@ -17,33 +17,37 @@
  		serial@12000 {
  			status = "okay";
  		};
-@@ -64,19 +65,18 @@
+@@ -64,19 +65,23 @@
  
  			partition@0 {
  				label = "u-boot";
 -				reg = <0x0000000 0x100000>;
 +				reg = <0x0000000 0xe0000>;
- 			};
- 
--			partition@100000 {
--				label = "uImage";
--				reg = <0x0100000 0x600000>;
++			};
++
 +			partition@e0000 {
 +				label = "u-boot environment";
 +				reg = <0xe0000 0x100000>;
  			};
  
+ 			partition@100000 {
+-				label = "uImage";
+-				reg = <0x0100000 0x600000>;
++				label = "second stage u-boot";
++				reg = <0x100000 0x200000>;
+ 			};
+ 
 -			partition@700000 {
-+			partition@100000 {
++			partition@200000 {
  				label = "root";
 -				reg = <0x0700000 0xf900000>;
-+				reg = <0x100000 0xff00000>;
++				reg = <0x200000 0xfe00000>;
  			};
 -
  		};
  	};
  
-@@ -84,6 +84,7 @@
+@@ -84,6 +89,7 @@
  		compatible = "gpio-keys";
  		#address-cells = <1>;
  		#size-cells = <0>;
@@ -51,7 +55,7 @@
  		button@1 {
  			label = "USB Copy";
  			linux,code = <133>;
-@@ -95,6 +96,7 @@
+@@ -95,6 +101,7 @@
  			gpios = <&gpio0 28 1>;
  		};
  	};
@@ -59,7 +63,7 @@
  	gpio-leds {
  		compatible = "gpio-leds";
  
-@@ -112,12 +114,11 @@
+@@ -112,12 +119,11 @@
  			gpios = <&gpio0 27 0>;
  		};
  	};
@@ -73,7 +77,7 @@
  };
  
  &mdio {
-@@ -131,6 +132,7 @@
+@@ -131,6 +137,7 @@
  
  &eth0 {
  	status = "okay";