David Woodhouse 031e2777e0 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>		2013-10-25 10:09:43 -07:00
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Makefile	mtd: add GPMI-NAND driver in the config and Makefile	2011-09-11 15:02:18 +03:00
bch-regs.h	mtd: gpmi: set the Golois Field bit for mx6q's BCH	2013-02-04 10:27:59 +02:00
gpmi-lib.c	mtd: gpmi: set the Golois Field bit for mx6q's BCH	2013-02-04 10:27:59 +02:00
gpmi-nand.c	mtd: gpmi: fix ECC regression	2013-10-25 10:09:43 -07:00
gpmi-nand.h	mtd: gpmi: move to use generic DMA helper	2013-04-04 21:22:45 +08:00
gpmi-regs.h	mtd: gpmi: add a new field for HW_GPMI_CTRL1	2012-09-29 15:55:18 +01:00