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generic: import patch lowering bitflip_threshold on SPI-NAND

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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.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle
2024-08-12 03:06:14 +01:00
parent c22ba7544e
commit 1554af4c43
2 changed files with 66 additions and 3 deletions
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6
target/linux/mediatek/patches-6.6/330-snand-mtk-bmt-support.patch
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@@ -8,7 +8,7 @@
static int spinand_read_reg_op(struct spinand_device *spinand, u8 reg, u8 *val)
{
@@ -1345,6 +1346,7 @@ static int spinand_probe(struct spi_mem
@@ -1346,6 +1347,7 @@ static int spinand_probe(struct spi_mem
if (ret)
return ret;
@@ -16,7 +16,7 @@
ret = mtd_device_register(mtd, NULL, 0);
if (ret)
goto err_spinand_cleanup;
@@ -1352,6 +1354,7 @@ static int spinand_probe(struct spi_mem
@@ -1353,6 +1355,7 @@ static int spinand_probe(struct spi_mem
return 0;
err_spinand_cleanup:
@@ -24,7 +24,7 @@
spinand_cleanup(spinand);
return ret;
@@ -1370,6 +1373,7 @@ static int spinand_remove(struct spi_mem
@@ -1371,6 +1374,7 @@ static int spinand_remove(struct spi_mem
if (ret)
return ret;