linux-kernel - [PATCH 2/3] mtd/nand : set correct length to FBCR for a non-full-page write

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Message-ID: <1322973098-2528-2-git-send-email-shuo.liu@freescale.com>
Date:	Sun, 4 Dec 2011 12:31:37 +0800
From:	<shuo.liu@...escale.com>
To:	<dwmw2@...radead.org>, <Artem.Bityutskiy@...ia.com>,
	<scottwood@...escale.com>
CC:	<linux-mtd@...ts.infradead.org>, <linuxppc-dev@...ts.ozlabs.org>,
	<akpm@...ux-foundation.org>, <linux-kernel@...r.kernel.org>,
	<leoli@...escale.com>, <shuo.liu@...escale.com>
Subject: [PATCH 2/3] mtd/nand : set correct length to FBCR for a non-full-page write

From: Liu Shuo <b35362@...escale.com>

When we do a non-full-page write, the length be set to FBCR should
not be 'elbc_fcm_ctrl->index', it should be 'elbc_fcm_ctrl->index -
elbc_fcm_ctrl->column'.

Signed-off-by: Liu Shuo <b35362@...escale.com>
Signed-off-by: Li Yang <leoli@...escale.com>
---
 drivers/mtd/nand/fsl_elbc_nand.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 6fce7da..d634c5f 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -474,7 +474,8 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
 		 */
 		if (elbc_fcm_ctrl->oob || elbc_fcm_ctrl->column != 0 ||
 		    elbc_fcm_ctrl->index != mtd->writesize + mtd->oobsize)
-			out_be32(&lbc->fbcr, elbc_fcm_ctrl->index);
+			out_be32(&lbc->fbcr,
+				elbc_fcm_ctrl->index - elbc_fcm_ctrl->column);
 		else
 			out_be32(&lbc->fbcr, 0);
 
-- 
1.7.1


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