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openwrt/target/linux/mediatek/patches-6.6/330-snand-mtk-bmt-support.patch
Daniel Golle 1554af4c43 generic: import patch lowering bitflip_threshold on SPI-NAND
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>
2024-08-12 11:31:37 +01:00

35 lines
808 B
Diff

--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -19,6 +19,7 @@
#include <linux/string.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi-mem.h>
+#include <linux/mtd/mtk_bmt.h>
static int spinand_read_reg_op(struct spinand_device *spinand, u8 reg, u8 *val)
{
@@ -1346,6 +1347,7 @@ static int spinand_probe(struct spi_mem
if (ret)
return ret;
+ mtk_bmt_attach(mtd);
ret = mtd_device_register(mtd, NULL, 0);
if (ret)
goto err_spinand_cleanup;
@@ -1353,6 +1355,7 @@ static int spinand_probe(struct spi_mem
return 0;
err_spinand_cleanup:
+ mtk_bmt_detach(mtd);
spinand_cleanup(spinand);
return ret;
@@ -1371,6 +1374,7 @@ static int spinand_remove(struct spi_mem
if (ret)
return ret;
+ mtk_bmt_detach(mtd);
spinand_cleanup(spinand);
return 0;