forked from Openwrt-EcoNet/openwrt
456b7a5d48
This is an automatically generated commit which aids following Kernel patch history, as git will see the move and copy as a rename thus defeating the purpose. For the original discussion see: https://lists.openwrt.org/pipermail/openwrt-devel/2023-October/041673.html Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com> Link: https://github.com/openwrt/openwrt/pull/16547 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
32 lines
1.3 KiB
Diff
32 lines
1.3 KiB
Diff
From 1824520e7477bedf76bd08c32261c755e6405cd9 Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Mon, 12 Aug 2024 02:56:41 +0100
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Subject: [PATCH] mtd: spinand: set bitflip_threshold to 75% of ECC strength
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Reporting an unclean read from SPI-NAND only when the maximum number
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of correctable bitflip errors has been hit seems a bit late.
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UBI LEB scrubbing, which depends on the lower MTD device reporting
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correctable bitflips, then only kicks in when it's almost too late.
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Set bitflip_threshold to 75% of the ECC strength, which is also the
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default for raw NAND.
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
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Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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Link: https://lore.kernel.org/linux-mtd/2117e387260b0a96f95b8e1652ff79e0e2d71d53.1723427450.git.daniel@makrotopia.org
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---
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drivers/mtd/nand/spi/core.c | 1 +
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1 file changed, 1 insertion(+)
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--- a/drivers/mtd/nand/spi/core.c
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+++ b/drivers/mtd/nand/spi/core.c
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@@ -1287,6 +1287,7 @@ static int spinand_init(struct spinand_d
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/* Propagate ECC information to mtd_info */
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mtd->ecc_strength = nanddev_get_ecc_conf(nand)->strength;
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mtd->ecc_step_size = nanddev_get_ecc_conf(nand)->step_size;
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+ mtd->bitflip_threshold = DIV_ROUND_UP(mtd->ecc_strength * 3, 4);
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ret = spinand_create_dirmaps(spinand);
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if (ret) {
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