ONENAND_CMD_UNLOCK
ret = onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_UNLOCK);
onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_UNLOCK);
case ONENAND_CMD_UNLOCK:
s3c_onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_UNLOCK);