Commit d10af38a authored by Han Xu's avatar Han Xu Committed by Miquel Raynal
Browse files

mtd: rawnand: gpmi: Add strict ecc strength check 



Add nand_ecc_is_strong_enough() check in gpmi_check_ecc() function to
make sure ecc strength can meet chip requirement.

Signed-off-by: default avatarHan Xu <han.xu@nxp.com>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220412025246.24269-3-han.xu@nxp.com
parent 15616c7c

drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c

+14 −1
Original line number Diff line number Diff line
@@ -240,7 +240,13 @@ static void gpmi_dump_info(struct gpmi_nand_data *this) 


static inline bool gpmi_check_ecc(struct gpmi_nand_data *this)

{

	struct nand_chip *chip = &this->nand;

	struct bch_geometry *geo = &this->bch_geometry;

	struct nand_device *nand = &chip->base;

	struct nand_ecc_props *conf = &nand->ecc.ctx.conf;



	conf->step_size = geo->eccn_chunk_size;

	conf->strength = geo->ecc_strength;



	/* Do the sanity check. */

	if (GPMI_IS_MXS(this)) {
@@ -248,7 +254,14 @@ static inline bool gpmi_check_ecc(struct gpmi_nand_data *this) 
		if (geo->gf_len == 14)

			return false;

	}

	return geo->ecc_strength <= this->devdata->bch_max_ecc_strength;



	if (geo->ecc_strength > this->devdata->bch_max_ecc_strength)

		return false;



	if (!nand_ecc_is_strong_enough(nand))

		return false;



	return true;

}



/*