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| author | Mike Dunn <mikedunn@newsguy.com> | 2012-12-07 21:07:22 +0100 |
|---|---|---|
| committer | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-12-12 16:03:32 +0100 |
| commit | 440b1d73b1b49bc08e1709ee6f6ef7ba2fc1f8ba (patch) | |
| tree | dc1300b245450f1ede61119df6ae107396f32951 | |
| parent | mtd: nand/docg4: add support for writing in reliable mode (diff) | |
| download | linux-440b1d73b1b49bc08e1709ee6f6ef7ba2fc1f8ba.tar.xz linux-440b1d73b1b49bc08e1709ee6f6ef7ba2fc1f8ba.zip | |
mtd: nand/docg4: reserve bb marker area in ecclayout
Modify the nand_ecclayout to place the two bb marker bytes in the oob region
off-limits to the user.
Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
| -rw-r--r-- | drivers/mtd/nand/docg4.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c index 54b1e5e359b8..04e5fa93735e 100644 --- a/drivers/mtd/nand/docg4.c +++ b/drivers/mtd/nand/docg4.c @@ -214,15 +214,17 @@ struct docg4_priv { #define DOCG4_FACTORY_BBT_PAGE 16 /* page where read-only factory bbt lives */ /* - * Oob bytes 0 - 6 are available to the user. - * Byte 7 is hamming ecc for first 7 bytes. Bytes 8 - 14 are hw-generated ecc. + * Bytes 0, 1 are used as badblock marker. + * Bytes 2 - 6 are available to the user. + * Byte 7 is hamming ecc for first 7 oob bytes only. + * Bytes 8 - 14 are hw-generated ecc covering entire page + oob bytes 0 - 14. * Byte 15 (the last) is used by the driver as a "page written" flag. */ static struct nand_ecclayout docg4_oobinfo = { .eccbytes = 9, .eccpos = {7, 8, 9, 10, 11, 12, 13, 14, 15}, - .oobavail = 7, - .oobfree = { {0, 7} } + .oobavail = 5, + .oobfree = { {.offset = 2, .length = 5} } }; /* |