+#if defined(CONFIG_NAND_U_BOOT)
+ #define CFG_ENV_IS_IN_NAND 1
+ #define CFG_ENV_OFFSET (512 * 1024)
+ #define CFG_ENV_SECT_SIZE CFG_NAND_BLOCK_SIZE
+ #define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
+ #define CFG_ENV_SIZE_REDUND CFG_ENV_SIZE
+ #define CFG_ENV_RANGE (CFG_ENV_SECT_SIZE * 4)
+ #define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET + CFG_ENV_RANGE)
+#elif !defined(CFG_RAMBOOT)