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| author | Robert Jarzmik <robert.jarzmik@free.fr> | 2011-11-19 19:02:49 +0400 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-01-09 22:07:19 +0400 |
| commit | 732b63bd8c70bf8fbc50d3d3cd56c748edb8cfac (patch) | |
| tree | 9885b9a2fef7cf78ddd9c563f181739d42334b43 /drivers/mtd/devices/docg3.c | |
| parent | ae9d4934b2d76a9fba21f5ad3692378d0e7fc24b (diff) | |
| download | linux-732b63bd8c70bf8fbc50d3d3cd56c748edb8cfac.tar.xz | |
mtd: docg3: add OOB layout to mtdinfo
Add OOB layout description for docg3, so that userspace can
use this information to setup the data for write_oob().
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Reviewed-by: Ivan Djelic <ivan.djelic@parrot.com>
Reviewed-by: Mike Dunn <mikedunn@newsguy.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/devices/docg3.c')
| -rw-r--r-- | drivers/mtd/devices/docg3.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c index 6eca7f6c072c..27c4feae132f 100644 --- a/drivers/mtd/devices/docg3.c +++ b/drivers/mtd/devices/docg3.c @@ -63,6 +63,20 @@ * */ +/** + * struct docg3_oobinfo - DiskOnChip G3 OOB layout + * @eccbytes: 8 bytes are used (1 for Hamming ECC, 7 for BCH ECC) + * @eccpos: ecc positions (byte 7 is Hamming ECC, byte 8-14 are BCH ECC) + * @oobfree: free pageinfo bytes (byte 0 until byte 6, byte 15 + * @oobavail: 8 available bytes remaining after ECC toll + */ +static struct nand_ecclayout docg3_oobinfo = { + .eccbytes = 8, + .eccpos = {7, 8, 9, 10, 11, 12, 13, 14}, + .oobfree = {{0, 7}, {15, 1} }, + .oobavail = 8, +}; + static inline u8 doc_readb(struct docg3 *docg3, u16 reg) { u8 val = readb(docg3->base + reg); @@ -973,6 +987,7 @@ static void __init doc_set_driver_info(int chip_id, struct mtd_info *mtd) mtd->write_oob = NULL; mtd->sync = NULL; mtd->block_isbad = doc_block_isbad; + mtd->ecclayout = &docg3_oobinfo; } /** |