OneNAND: Write oob area with aligned size, mtd->oobsize
Kyungmin Park [Fri, 12 May 2006 14:02:46 +0000 (17:02 +0300)]
There's some problem with write oob in serveral platform.
So we write oob with oobsize aligned (16bytes) instead of 3 bytes (from {2,
3})

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

drivers/mtd/onenand/onenand_base.c

index e342ba0..6b950ab 100644 (file)
@@ -965,8 +965,11 @@ static int onenand_write_oob(struct mtd_info *mtd, loff_t to, size_t len,
 
                this->command(mtd, ONENAND_CMD_BUFFERRAM, to, mtd->oobsize);
 
-               this->write_bufferram(mtd, ONENAND_SPARERAM, ffchars, 0, mtd->oobsize);
-               this->write_bufferram(mtd, ONENAND_SPARERAM, buf, column, thislen);
+               /* We send data to spare ram with oobsize
+                * to prevent byte access */
+               memset(this->page_buf, 0xff, mtd->oobsize);
+               memcpy(this->page_buf + column, buf, thislen);
+               this->write_bufferram(mtd, ONENAND_SPARERAM, this->page_buf, 0, mtd->oobsize);
 
                this->command(mtd, ONENAND_CMD_PROGOOB, to, mtd->oobsize);