The omap_gpmc allows switching ecc at runtime. Since
the NAND_SUBPAGE_READ flag is only set, it is kept when
switching to hw ecc, which is not correct. This leads to
calling chip->ecc.read_subpage which is not a valid
pointer. Therefore also clear the flag so reading in
hw mode works again.
Cc: Scott Wood <scottw...@freescale.com>
Cc: Pekon Gupta <pe...@ti.com>
Cc: Nikita Kiryanov <nik...@compulab.co.il>
Signed-off-by: Jeroen Hofstee <jer...@myspectrum.nl>
---
drivers/mtd/nand/nand_base.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 1ce55fd..0762a19 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3354,6 +3354,8 @@ int nand_scan_tail(struct mtd_info *mtd)
/* Large page NAND with SOFT_ECC should support subpage reads */
if ((chip->ecc.mode == NAND_ECC_SOFT) && (chip->page_shift > 9))
chip->options |= NAND_SUBPAGE_READ;
+ else
+ chip->options &= ~NAND_SUBPAGE_READ;
/* Fill in remaining MTD driver data */
mtd->type = MTD_NANDFLASH;
--
1.8.3.2
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