linux-kernel - [PATCH] mtd: increase max page/OOB size to support 16K pagesize NAND

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Message-ID: <C3050A4DBA34F345975765E43127F10F25E47448@SZXEMA512-MBX.china.huawei.com>
Date:	Fri, 13 Dec 2013 05:01:56 +0000
From:	Caizhiyong <caizhiyong@...ilicon.com>
To:	David Woodhouse <dwmw2@...radead.org>,
	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>
CC:	Huang Shijie <b32955@...escale.com>,
	Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>,
	David Woodhouse <David.Woodhouse@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Wanglin (Albert)" <albert.wanglin@...ilicon.com>,
	Quyaxin <quyaxin@...ilicon.com>
Subject: [PATCH] mtd: increase max page/OOB size to support 16K pagesize NAND

From: Cai Zhiyong <caizhiyong@...wei.com>
Date: Fri, 13 Dec 2013 12:52:46 +0800
Subject: [PATCH] mtd: increase max page/OOB size to support 16K pagesize NAND.

The Toshiba's TC58TEG5DCJTA pagesize is 16K, oob size is 1280 bytes.
So increase the NAND_MAX_OOBSIZE and NAND_MAX_PAGESIZE.

Signed-off-by: Huang Shijie <b32955@...escale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@...el.com>

Signed-off-by: Cai Zhiyong <caizhiyong@...wei.com>
---
 include/linux/mtd/nand.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index f3ea8da..2f0a7f2 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -56,8 +56,8 @@ extern int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
  * is supported now. If you add a chip with bigger oobsize/page
  * adjust this accordingly.
  */
-#define NAND_MAX_OOBSIZE	744
-#define NAND_MAX_PAGESIZE	8192
+#define NAND_MAX_OOBSIZE	1280
+#define NAND_MAX_PAGESIZE	16384
 
 /*
  * Constants for hardware specific CLE/ALE/NCE function
--
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