public inbox for linux-mtd@lists.infradead.org
 help / color / mirror / Atom feed
From: Bryan Wu <cooloney@kernel.org>
To: linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org
Cc: Bryan Wu <cooloney@kernel.org>, Mike Frysinger <vapier.adi@gmail.com>
Subject: [PATCH 2/2] [MTD] Blackfin NFC Driver: fix bug - hw ecc calc by making sure we extract 11 bits from each register instead of 10
Date: Thu, 19 Jun 2008 18:18:29 +0800	[thread overview]
Message-ID: <1213870709-17356-3-git-send-email-cooloney@kernel.org> (raw)
In-Reply-To: <1213870709-17356-1-git-send-email-cooloney@kernel.org>

From: Mike Frysinger <vapier.adi@gmail.com>

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
---
 drivers/mtd/nand/bf5xx_nand.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c
index 3254348..fc58afe 100644
--- a/drivers/mtd/nand/bf5xx_nand.c
+++ b/drivers/mtd/nand/bf5xx_nand.c
@@ -298,7 +298,7 @@ static int bf5xx_nand_calculate_ecc(struct mtd_info *mtd,
 	ecc0 = bfin_read_NFC_ECC0();
 	ecc1 = bfin_read_NFC_ECC1();
 
-	code[0] = (ecc0 & 0x3FF) | ((ecc1 & 0x3FF) << 11);
+	code[0] = (ecc0 & 0x7ff) | ((ecc1 & 0x7ff) << 11);
 
 	dev_dbg(info->device, "returning ecc 0x%08x\n", code[0]);
 
@@ -310,7 +310,7 @@ static int bf5xx_nand_calculate_ecc(struct mtd_info *mtd,
 	if (page_size == 512) {
 		ecc0 = bfin_read_NFC_ECC2();
 		ecc1 = bfin_read_NFC_ECC3();
-		code[1] = (ecc0 & 0x3FF) | ((ecc1 & 0x3FF) << 11);
+		code[1] = (ecc0 & 0x7ff) | ((ecc1 & 0x7ff) << 11);
 
 		/* second 3 bytes in ecc_code for second 256
 		 * bytes of 512 page size
-- 
1.5.6

      parent reply	other threads:[~2008-06-19 10:18 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-19 10:18 [PATCH 0/2] [MTD] Blackfin NAND Flash Controller driver bug fixing Bryan Wu
2008-06-19 10:18 ` [PATCH 1/2] [MTD] Blackfin NFC Driver: fix bug - do not clobber the status from the first 256 bytes if operating on 512 pages Bryan Wu
2008-06-19 10:18 ` Bryan Wu [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1213870709-17356-3-git-send-email-cooloney@kernel.org \
    --to=cooloney@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mtd@lists.infradead.org \
    --cc=vapier.adi@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox