ARM: highbank: change env config to use nvram

Update the highbank config to use env from NVRAM. Also remove extra env
settings as they are not used unless the default env is used.

Signed-off-by: Jason Hobbs <jason.hobbs@calxeda.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>

include/configs/highbank.h

@@ -93,12 +93,6 @@
 
 #define CONFIG_SYS_LOAD_ADDR		0x800000
 
-#define CONFIG_EXTRA_ENV_SETTINGS	\
-		"fdtaddr_r=0x600000\0" \
-		"pxefile_addr_r=0x700000\0" \
-		"kernel_addr_r=0x800000\0" \
-		"ramdisk_addr_r=0x01000000\0" \
-
 /*-----------------------------------------------------------------------
  * Stack sizes
  *
@@ -118,9 +112,13 @@
 #define CONFIG_SYS_MEMTEST_START	0x100000
 #define CONFIG_SYS_MEMTEST_END		(PHYS_SDRAM_1_SIZE - 0x100000)
 
-/* Room required on the stack for the environment data */
-#define CONFIG_ENV_SIZE			0x2000
-#define CONFIG_ENV_IS_NOWHERE
+/* Environment data setup
+*/
+#define CONFIG_ENV_IS_IN_NVRAM
+#define CONFIG_SYS_NVRAM_BASE_ADDR	0xfff88000	/* NVRAM base address */
+#define CONFIG_SYS_NVRAM_SIZE		0x8000		/* NVRAM size */
+#define CONFIG_ENV_SIZE			0x2000		/* Size of Environ */
+#define CONFIG_ENV_ADDR			CONFIG_SYS_NVRAM_BASE_ADDR
 
 #define CONFIG_SYS_SDRAM_BASE		0x00000000
 #define CONFIG_SYS_TEXT_BASE		0x00008000