Commit ce959ae5 authored by Oleg Dzhimiev's avatar Oleg Dzhimiev
Browse files

lost __nand_unlock

parent 3dc5d43f

src/drivers/mtd/nand/nand_base.c

+40 −0
Original line number Original line Diff line number Diff line
@@ -1387,6 +1387,46 @@ int nand_check_erased_ecc_chunk(void *data, int datalen, 
}

}

EXPORT_SYMBOL(nand_check_erased_ecc_chunk);

EXPORT_SYMBOL(nand_check_erased_ecc_chunk);





/**

 * __nand_unlock - [REPLACEABLE] unlocks specified locked blocks

 * @mtd: mtd info

 * @ofs: offset to start unlock from

 * @len: length to unlock

 * @invert: when = 0, unlock the range of blocks within the lower and

 *                    upper boundary address

 *          when = 1, unlock the range of blocks outside the boundaries

 *                    of the lower and upper boundary address

 *

 * Returs unlock status.

 */

static int __nand_unlock(struct mtd_info *mtd, loff_t ofs,

					uint64_t len, int invert)

{

	int ret = 0;

	int status, page;

	struct nand_chip *chip = mtd->priv;



	/* Submit address of first page to unlock */

	page = ofs >> chip->page_shift;

	chip->cmdfunc(mtd, NAND_CMD_UNLOCK1, -1, page & chip->pagemask);



	/* Submit address of last page to unlock */

	page = (ofs + len) >> chip->page_shift;

	chip->cmdfunc(mtd, NAND_CMD_UNLOCK2, -1,

				(page | invert) & chip->pagemask);



	/* Call wait ready function */

	status = chip->waitfunc(mtd, chip);

	/* See if device thinks it succeeded */

	if (status & NAND_STATUS_FAIL) {

		pr_debug("%s: error status = 0x%08x\n",

					__func__, status);

		ret = -EIO;

	}



	return ret;

}



/**

/**

 * nand_unlock - [REPLACEABLE] unlocks specified locked blocks

 * nand_unlock - [REPLACEABLE] unlocks specified locked blocks

 * @mtd: mtd info

 * @mtd: mtd info