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mtd: rawnand: omap: Use ECC information from the generic structures

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As part of a previous fix, we imported the BCH internal structure in
order to get information about the BCH engine configuration.

It is best not to access private structure so instead, a small rework
has been done to export more information from the ECC engines. Now,
let's use these.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Adam Ford <aford173@gmail.com> #logicpd Torpedo
Link: https://lore.kernel.org/linux-mtd/20210127203020.9574-8-miquel.raynal@bootlin.com
This commit is contained in:
Miquel Raynal 2021-01-27 21:30:18 +01:00
parent 5b9215acb5
commit 49894937fc
1 changed files with 8 additions and 6 deletions
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14
drivers/mtd/nand/raw/omap2.c
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@ -1868,18 +1868,19 @@ static int omap_sw_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *oobregion)
{
struct nand_device *nand = mtd_to_nanddev(mtd);
const struct nand_ecc_sw_bch_conf *engine_conf = nand->ecc.ctx.priv;
unsigned int nsteps = nanddev_get_ecc_nsteps(nand);
unsigned int ecc_bytes = nanddev_get_ecc_bytes_per_step(nand);
int off = BADBLOCK_MARKER_LENGTH;
if (section >= engine_conf->nsteps)
if (section >= nsteps)
return -ERANGE;
/*
* When SW correction is employed, one OMAP specific marker byte is
* reserved after each ECC step.
*/
oobregion->offset = off + (section * (engine_conf->code_size + 1));
oobregion->length = engine_conf->code_size;
oobregion->offset = off + (section * (ecc_bytes + 1));
oobregion->length = ecc_bytes;
return 0;
}
@ -1888,7 +1889,8 @@ static int omap_sw_ooblayout_free(struct mtd_info *mtd, int section,
struct mtd_oob_region *oobregion)
{
struct nand_device *nand = mtd_to_nanddev(mtd);
const struct nand_ecc_sw_bch_conf *engine_conf = nand->ecc.ctx.priv;
unsigned int nsteps = nanddev_get_ecc_nsteps(nand);
unsigned int ecc_bytes = nanddev_get_ecc_bytes_per_step(nand);
int off = BADBLOCK_MARKER_LENGTH;
if (section)
@ -1898,7 +1900,7 @@ static int omap_sw_ooblayout_free(struct mtd_info *mtd, int section,
* When SW correction is employed, one OMAP specific marker byte is
* reserved after each ECC step.
*/
off += ((engine_conf->code_size + 1) * engine_conf->nsteps);
off += ((ecc_bytes + 1) * nsteps);
if (off >= mtd->oobsize)
return -ERANGE;