Hi,
This series is the first step towards reliable MLC/TLC NAND support.
Those patches allows the NAND layer to expose page pairing information
to MTD users.
The plan is to teach UBI about those constraints and let UBI code take
the appropriate precautions when dealing with those multi-level cells
NANDs. The way we'll handle this "paired pages" constraint will be
described soon in a series adapting the UBI layer, so stay tune ;).
Note that this implementation only allows page pairing scheme description
when the NAND has a full-id entry in the nand_ids table.
This should be addressed in some way for ONFI and JEDEC NANDs, though
I'm not sure how to handle this yet.
Best Regards,
Boris
Boris Brezillon (4):
mtd: introduce the mtd_pairing_scheme concept
mtd: nand: implement two pairing scheme
mtd: nand: add a pairing field to nand_flash_dev
mtd: nand: H27UCG8T2ATR: point to the correct pairing scheme
implementation
drivers/mtd/mtdcore.c | 62 ++++++++++++++++++++++++++++
drivers/mtd/mtdpart.c | 1 +
drivers/mtd/nand/nand_base.c | 97 ++++++++++++++++++++++++++++++++++++++++++++
drivers/mtd/nand/nand_ids.c | 2 +-
include/linux/mtd/mtd.h | 64 +++++++++++++++++++++++++++++
include/linux/mtd/nand.h | 5 +++
6 files changed, 230 insertions(+), 1 deletion(-)
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2.7.4
