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[MTD] Introduce writesize

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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>
This commit is contained in:
Joern Engel
2006-05-22 23:18:05 +02:00
parent 8ca9ed5db3
commit 28318776a8
17 changed files with 117 additions and 114 deletions
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7
include/linux/mtd/mtd.h
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@@ -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