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authorDavid Woodhouse <David.Woodhouse@intel.com>2013-10-25 18:03:59 +0400
committerBrian Norris <computersforpeace@gmail.com>2013-10-25 21:09:43 +0400
commit031e2777e03401d629e62602c8ce42b017732d4d (patch)
tree957ca0ef07f82ded1c5836f4bb239d357d8a2df0 /drivers/mtd/nand/gpmi-nand
parent18a84e935ef3b283e86426827a2a1d524bb7eb8e (diff)
downloadlinux-031e2777e03401d629e62602c8ce42b017732d4d.tar.xz
mtd: gpmi: fix ECC regression
The "legacy" ECC layout used until 3.12-rc1 uses all the OOB area by computing the ECC strength and ECC step size ourselves. Commit 2febcdf84b ("mtd: gpmi: set the BCHs geometry with the ecc info") makes the driver use the ECC info (ECC strength and ECC step size) provided by the MTD code, and creates a different NAND ECC layout for the BCH, and use the new ECC layout. This causes a regression: We can not mount the ubifs which was created by the old NAND ECC layout. This patch fixes this issue by reverting to the legacy ECC layout. We will probably introduce a new device-tree property to indicate that the new ECC layout can be used. For now though, for the imminent 3.12 release, we just unconditionally revert to the 3.11 behaviour. This leaves a harmless cosmetic warning about an unused function. At this point in the cycle I really don't care. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Huang Shijie <b32955@freescale.com> Acked-by: Marek Vasut <marex@denx.de> Tested-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'drivers/mtd/nand/gpmi-nand')
-rw-r--r--drivers/mtd/nand/gpmi-nand/gpmi-nand.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 59ab0692f0b9..a9830ff8e3f3 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -349,7 +349,7 @@ static int legacy_set_geometry(struct gpmi_nand_data *this)
int common_nfc_set_geometry(struct gpmi_nand_data *this)
{
- return set_geometry_by_ecc_info(this) ? 0 : legacy_set_geometry(this);
+ return legacy_set_geometry(this);
}
struct dma_chan *get_dma_chan(struct gpmi_nand_data *this)