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| author | Artem B. Bityutskiy <dedekind@sauron.oktetlabs.ru> | 2006-06-14 19:53:44 +0400 |
|---|---|---|
| committer | Artem B. Bityutskiy <dedekind@sauron.oktetlabs.ru> | 2006-06-14 19:53:44 +0400 |
| commit | 783ed81ff39d3f938a6b2efd09fbad96e41e5c1f (patch) | |
| tree | 31cdfd9c39c9451ba37866dcb6e82e68c770216c /include/linux/mtd/mtd.h | |
| parent | f9068876f5ef583f8e9ebf4acd2ef5b35b113db9 (diff) | |
| download | kernel_samsung_tuna-783ed81ff39d3f938a6b2efd09fbad96e41e5c1f.zip kernel_samsung_tuna-783ed81ff39d3f938a6b2efd09fbad96e41e5c1f.tar.gz kernel_samsung_tuna-783ed81ff39d3f938a6b2efd09fbad96e41e5c1f.tar.bz2 | |
[MTD] assume mtd->writesize is 1 for NOR flashes
Signed-off-by: Artem B. Bityitskiy
Diffstat (limited to 'include/linux/mtd/mtd.h')
| -rw-r--r-- | include/linux/mtd/mtd.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 9536567..e1d2a3d 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -110,9 +110,12 @@ struct mtd_info { * information below if they desire */ u_int32_t erasesize; - /* Smallest availlable size for writing to the device. For NAND, - * this is the page size, for some NOR chips, the size of ECC - * covered blocks. + /* Minimal writable flash unit size. In case of NOR flash it is 1 (even + * though individual bits can be cleared), in case of NAND flash it is + * one NAND page (or half, or one-fourths of it), in case of ECC-ed NOR + * it is of ECC block size, etc. It is illegal to have writesize = 0. + * Any driver registering a struct mtd_info must ensure a writesize of + * 1 or larger. */ u_int32_t writesize; |