#define CHIP_REV_VER_SHIFT 8
#define CHIP_REV_ECO_MASK 0xf
-#define MT7621_DRAM_BASE 0x0
-#define MT7621_DDR2_SIZE_MIN 32
-#define MT7621_DDR2_SIZE_MAX 256
+#define MT7621_LOWMEM_BASE 0x0
+#define MT7621_LOWMEM_MAX_SIZE 0x1C000000
+#define MT7621_HIGHMEM_BASE 0x20000000
+#define MT7621_HIGHMEM_SIZE 0x4000000
#define MT7621_CHIP_NAME0 0x3637544D
#define MT7621_CHIP_NAME1 0x20203132