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

[Linux-MTD Mailing List]

commit 34c1060959b61a5bb2e97a88411446028cebfa7c
tree 74a58f5e63a2ee4d91d3cae4985ed55141c70aa0
parent 8e6ec69059ba0eecbb2226d3d9e45c6efe6fb82b
author Kyungmin Park <kyungmin.park at samsung.com> Fri, 12 May 2006 17:02:46 +0300
committer Jarkko Lavinen <lavinen at pentafluge.infradead.org> Fri, 12 May 2006 15:35:47 +0100

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 at samsung.com>

 drivers/mtd/onenand/onenand_base.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index e342ba0..6b950ab 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_
 
 		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);