linux-kernel - [PATCH v2] mtd: Expand the ecc placement locations to 1216

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Message-ID: <1436847570-18579-1-git-send-email-punnaia@xilinx.com>
Date:	Tue, 14 Jul 2015 09:49:30 +0530
From:	Punnaiah Choudary Kalluri <punnaiah.choudary.kalluri@...inx.com>
To:	dwmw2@...radead.org, computersforpeace@...il.com
CC:	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	michals@...inx.com, kalluripunnaiahchoudary@...il.com,
	kpc528@...il.com, Punnaiah Choudary Kalluri <punnaia@...inx.com>
Subject: [PATCH v2] mtd: Expand the ecc placement locations to 1216

Device like MT29F32G08ABCDBJ4 have a writesize/oobsize of 16K/1216 Bytes.
So, increasing the maximum ecc placement locations to 1216

Signed-off-by: Punnaiah Choudary Kalluri <punnaia@...inx.com>
---
Changes in v2:
- Corrected the oobsize in commit message and code from 1260 to 1216
- Aligned the new values to userspace values
---
 include/linux/mtd/mtd.h    |    2 +-
 include/uapi/mtd/mtd-abi.h |    4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index f17fa75..1fd3cc6 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -95,7 +95,7 @@ struct mtd_oob_ops {
 };
 
 #define MTD_MAX_OOBFREE_ENTRIES_LARGE	32
-#define MTD_MAX_ECCPOS_ENTRIES_LARGE	640
+#define MTD_MAX_ECCPOS_ENTRIES_LARGE	1216
 /*
  * Internal ECC layout control structure. For historical reasons, there is a
  * similar, smaller struct nand_ecclayout_user (in mtd-abi.h) that is retained
diff --git a/include/uapi/mtd/mtd-abi.h b/include/uapi/mtd/mtd-abi.h
index 763bb69..c4d592c 100644
--- a/include/uapi/mtd/mtd-abi.h
+++ b/include/uapi/mtd/mtd-abi.h
@@ -220,8 +220,8 @@ struct nand_oobfree {
 	__u32 length;
 };
 
-#define MTD_MAX_OOBFREE_ENTRIES	8
-#define MTD_MAX_ECCPOS_ENTRIES	64
+#define MTD_MAX_OOBFREE_ENTRIES	32
+#define MTD_MAX_ECCPOS_ENTRIES	1216
 /*
  * OBSOLETE: ECC layout control structure. Exported to user-space via ioctl
  * ECCGETLAYOUT for backwards compatbility and should not be mistaken as a
-- 
1.7.4

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