85xx: separate FLASH BASE virtual from physical address

Added a CONFIG_SYS_FLASH_BASE_PHYS for use as the physical address and
maintain CONFIG_SYS_FLASH_BASE as the virtual address of the flash.

This allows us to deal with 36-bit phys on these boards in the future.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Andy Fleming <afleming@freescale.com>
diff --git a/include/configs/MPC8536DS.h b/include/configs/MPC8536DS.h
index 3ea1b48..fb9fc2e 100644
--- a/include/configs/MPC8536DS.h
+++ b/include/configs/MPC8536DS.h
@@ -166,12 +166,13 @@
  * Local Bus Definitions
  */
 #define CONFIG_SYS_FLASH_BASE		0xe0000000	/* start of FLASH 128M */
+#define CONFIG_SYS_FLASH_BASE_PHYS	CONFIG_SYS_FLASH_BASE
 
-#define CONFIG_SYS_BR0_PRELIM		0xe8001001
-#define CONFIG_SYS_OR0_PRELIM		0xf8000ff7
+#define CONFIG_SYS_BR0_PRELIM  (BR_PHYS_ADDR((CONFIG_SYS_FLASH_BASE_PHYS + 0x8000000)) | BR_PS_16 | BR_V)
+#define CONFIG_SYS_OR0_PRELIM	0xf8000ff7
 
-#define CONFIG_SYS_BR1_PRELIM		0xe0001001
-#define CONFIG_SYS_OR1_PRELIM		0xf8000ff7
+#define CONFIG_SYS_BR1_PRELIM  (BR_PHYS_ADDR(CONFIG_SYS_FLASH_BASE_PHYS) | BR_PS_16 | BR_V)
+#define CONFIG_SYS_OR1_PRELIM	0xf8000ff7
 
 #define CONFIG_SYS_FLASH_BANKS_LIST	{CONFIG_SYS_FLASH_BASE + 0x8000000, CONFIG_SYS_FLASH_BASE}
 #define CONFIG_SYS_FLASH_QUIET_TEST