#define NAND_LOCK_STATUS_UNLOCK 0x04
int nand_lock(nand_info_t *meminfo, int tight);
-int nand_unlock(nand_info_t *meminfo, ulong start, ulong length, int allexcept);
+int nand_unlock(nand_info_t *meminfo, loff_t start, size_t length,
+ int allexcept);
int nand_get_lock_status(nand_info_t *meminfo, loff_t offset);
int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst);