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| author |   David Woodhouse <dwmw2@infradead.org> | 2006-10-21 17:09:53 +0100 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2006-10-21 17:48:58 +0100 |
| commit | 7dcdcbef5d2b60d1db68fd2c07351f7afd8ad376 (patch) | |
| tree | 8a3817d93520bf28aaea42534a953909f9bb10e3 /include/linux/mtd | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 (diff) | |
| download | linux-dev-7dcdcbef5d2b60d1db68fd2c07351f7afd8ad376.tar.xz linux-dev-7dcdcbef5d2b60d1db68fd2c07351f7afd8ad376.zip | |
[MTD] NAND: Combined oob buffer so it's contiguous with data
Ditch the separate oobrbuf and oobwbuf fields from the chip buffers,
and use only a single buffer immediately after the data. This accommodates
NAND controllers such as the OLPC CAFÉ chip, which can't do scatter/gather
DMA so needs the OOB buffer to be contiguous with the data, for both read
and write.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/nand.h | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 70420bbae82b..6fc3e07497e0 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -286,9 +286,7 @@ struct nand_ecc_ctrl { * struct nand_buffers - buffer structure for read/write * @ecccalc: buffer for calculated ecc * @ecccode: buffer for ecc read from flash - * @oobwbuf: buffer for write oob data * @databuf: buffer for data - dynamically sized - * @oobrbuf: buffer to read oob data * * Do not change the order of buffers. databuf and oobrbuf must be in * consecutive order. @@ -296,9 +294,7 @@ struct nand_ecc_ctrl { struct nand_buffers { uint8_t ecccalc[NAND_MAX_OOBSIZE]; uint8_t ecccode[NAND_MAX_OOBSIZE]; - uint8_t oobwbuf[NAND_MAX_OOBSIZE]; - uint8_t databuf[NAND_MAX_PAGESIZE]; - uint8_t oobrbuf[NAND_MAX_OOBSIZE]; + uint8_t databuf[NAND_MAX_PAGESIZE + NAND_MAX_OOBSIZE]; }; /** |