Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / include / linux / mtd / mtd.h

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index fe8d77ebec13fa5d1dc51f7a6222bf54164e8d02..9d5306bad117fcc850bf3c440127b56efb1ce027 100644 (file)
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -144,6 +144,17 @@ struct mtd_info {
         */
        uint32_t writesize;
 
+       /*
+        * Size of the write buffer used by the MTD. MTD devices having a write
+        * buffer can write multiple writesize chunks at a time. E.g. while
+        * writing 4 * writesize bytes to a device with 2 * writesize bytes
+        * buffer the MTD driver can (but doesn't have to) do 2 writesize
+        * operations, but not 4. Currently, all NANDs have writebufsize
+        * equivalent to writesize (NAND page size). Some NOR flashes do have
+        * writebufsize greater than writesize.
+        */
+       uint32_t writebufsize;
+
        uint32_t oobsize;   // Amount of OOB data per block (e.g. 16)
        uint32_t oobavail;  // Available OOB bytes per block