From: Daniel Schultz <d.schultz@phytec.de>
To: barebox@lists.infradead.org
Subject: [PATCH] mtd: nand: omap: Return corrected bits for BCH
Date: Tue, 6 Jun 2017 17:49:33 +0200 [thread overview]
Message-ID: <1496764173-29493-1-git-send-email-d.schultz@phytec.de> (raw)
If using ECC mode OMAP_ECC_HAMMING_CODE_HW_ROMCODE (which is default for
all AM335x with DTS support) the page_read function won't return the
corrected bitflips.
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
---
drivers/mtd/nand/nand_omap_gpmc.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/mtd/nand/nand_omap_gpmc.c b/drivers/mtd/nand/nand_omap_gpmc.c
index e18ce63..05c8486 100644
--- a/drivers/mtd/nand/nand_omap_gpmc.c
+++ b/drivers/mtd/nand/nand_omap_gpmc.c
@@ -707,10 +707,12 @@ static int omap_gpmc_read_page_bch_rom_mode(struct mtd_info *mtd,
__omap_calculate_ecc(mtd, buf, ecc_calc, 1);
stat = omap_correct_bch(mtd, buf, ecc_code, ecc_calc);
- if (stat < 0)
+ if (stat < 0) {
mtd->ecc_stats.failed++;
- else
+ } else {
mtd->ecc_stats.corrected += stat;
+ return stat;
+ }
return 0;
}
--
1.9.1
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