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| author |   Joern Engel <joern@wh.fh-wedel.de> | 2006-05-22 23:18:05 +0200 |
|---|---|---|
| committer | Joern Engel <joern@wh.fh-wedel.de> | 2006-05-22 23:18:05 +0200 |
| commit | 28318776a80bc3261f9af91ef79e6e38bb9f5bec (patch) | |
| tree | 36ef9144accf19db9d51019aa479807e80aeb8fd /include/linux/mtd | |
| parent | [MTD] Use single flag to mark writeable devices. (diff) | |
| download | linux-dev-28318776a80bc3261f9af91ef79e6e38bb9f5bec.tar.xz linux-dev-28318776a80bc3261f9af91ef79e6e38bb9f5bec.zip | |
[MTD] Introduce writesize
At least two flashes exists that have the concept of a minimum write unit,
similar to NAND pages, but no other NAND characteristics. Therefore, rename
the minimum write unit to "writesize" for all flashes, including NAND.
Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/mtd.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 73620ef83364..d48c7492392b 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -66,8 +66,12 @@ 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. + */ + u_int32_t writesize; - u_int32_t oobblock; // Size of OOB blocks (e.g. 512) u_int32_t oobsize; // Amount of OOB data per block (e.g. 16) u_int32_t ecctype; u_int32_t eccsize; @@ -79,7 +83,6 @@ struct mtd_info { * MTD_PROGRAM_REGIONS flag is set. * (Maybe we should have an union for those?) */ -#define MTD_PROGREGION_SIZE(mtd) (mtd)->oobblock #define MTD_PROGREGION_CTRLMODE_VALID(mtd) (mtd)->oobsize #define MTD_PROGREGION_CTRLMODE_INVALID(mtd) (mtd)->ecctype |