#define SDRAM_CFG_SDRAM_TYPE_MASK 0x07000000
#define SDRAM_CFG_SDRAM_TYPE_SHIFT 24
#define SDRAM_CFG_DYN_PWR 0x00200000
+#define SDRAM_CFG_DBW_MASK 0x00180000
#define SDRAM_CFG_32_BE 0x00080000
#define SDRAM_CFG_16_BE 0x00100000
#define SDRAM_CFG_8_BE 0x00040000