From d10af38a2e3b60dc46ca9727dfc24d0ea57136e3 Mon Sep 17 00:00:00 2001 From: Han Xu Date: Mon, 11 Apr 2022 21:52:43 -0500 Subject: 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: Han Xu Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20220412025246.24269-3-han.xu@nxp.com --- drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c index 66ebd569858d..cee39126771e 100644 --- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c @@ -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; } /* -- cgit v1.2.3