diff options
| author | Daniel Golle <[email protected]> | 2025-09-30 03:20:56 +0300 |
|---|---|---|
| committer | Michael Trimarchi <[email protected]> | 2025-10-05 20:26:06 +0200 |
| commit | d488490abdf2a2832fd7ce97bce4955c1026f15f (patch) | |
| tree | bc2aa1efcdaabb49fcd19111d3b0c7f47c83c69a | |
| parent | 2a0f8e7da0e5db93df8d48c5aab05037e071ca1e (diff) | |
mtd: spinand: set bitflip_threshold to 75% of ECC strength
Reporting an unclean read from SPI-NAND only when the maximum number
of correctable bitflip errors has been hit seems a bit late.
UBI LEB scrubbing, which depends on the lower MTD device reporting
correctable bitflips, then only kicks in when it's almost too late.
Set bitflip_threshold to 75% of the ECC strength, which is also the
default for raw NAND.
This is a port of linux commit
1824520e7477 (mtd: spinand: set bitflip_threshold to 75% of ECC strength)
Signed-off-by: Daniel Golle <[email protected]>
Reviewed-by: Frieder Schrempf <[email protected]>
Signed-off-by: Miquel Raynal <[email protected]>
Link: https://lore.kernel.org/linux-mtd/2117e387260b0a96f95b8e1652ff79e0e2d71d53.1723427450.git.daniel@makrotopia.org
Signed-off-by: Mikhail Kshevetskiy <[email protected]> # U-Boot port
Signed-off-by: Michael Trimarchi <[email protected]>
| -rw-r--r-- | drivers/mtd/nand/spi/core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c index b5daab21743..2a2ab664c2c 100644 --- a/drivers/mtd/nand/spi/core.c +++ b/drivers/mtd/nand/spi/core.c @@ -1291,6 +1291,7 @@ static int spinand_init(struct spinand_device *spinand) /* Propagate ECC information to mtd_info */ mtd->ecc_strength = nanddev_get_ecc_conf(nand)->strength; mtd->ecc_step_size = nanddev_get_ecc_conf(nand)->step_size; + mtd->bitflip_threshold = DIV_ROUND_UP(mtd->ecc_strength * 3, 4); ret = spinand_create_dirmaps(spinand); if (ret) { |