OneNAND: Write oob area with aligned size, mtd->oobsize

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>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index e342ba04118a..6b950ab8ea8d 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -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);