From: Schrempf Frieder <frieder.schrempf@kontron.de>
To: "bbrezillon@kernel.org" <bbrezillon@kernel.org>,
"miquel.raynal@bootlin.com" <miquel.raynal@bootlin.com>,
"richard@nod.at" <richard@nod.at>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: "linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
"Schrempf Frieder" <frieder.schrempf@kontron.de>,
David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
Marek Vasut <marek.vasut@gmail.com>
Subject: [PATCH v3 5/5] mtd: rawnand: AMD: Also use the last page for bad block markers
Date: Wed, 30 Jan 2019 13:01:52 +0000 [thread overview]
Message-ID: <20190130130111.32724-6-frieder.schrempf@kontron.de> (raw)
In-Reply-To: <20190130130111.32724-1-frieder.schrempf@kontron.de>
From: Frieder Schrempf <frieder.schrempf@kontron.de>
According to the datasheet of some Cypress SLC NANDs, the bad
block markers can be in the first, second or last page of a block.
So let's check all three locations.
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Boris Brezillon <bbrezillon@kernel.org>
---
drivers/mtd/nand/raw/nand_amd.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/nand_amd.c b/drivers/mtd/nand/raw/nand_amd.c
index 6202cbf7ee8d..2ffcddff3e27 100644
--- a/drivers/mtd/nand/raw/nand_amd.c
+++ b/drivers/mtd/nand/raw/nand_amd.c
@@ -40,7 +40,13 @@ static void amd_nand_decode_id(struct nand_chip *chip)
static int amd_nand_init(struct nand_chip *chip)
{
if (nand_is_slc(chip))
- chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE;
+ /*
+ * According to the datasheet of some Cypress SLC NANDs,
+ * the bad block markers can be in the first, second or last
+ * page of a block. So let's check all three locations.
+ */
+ chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE |
+ NAND_BBM_LASTPAGE;
return 0;
}
--
2.17.1
prev parent reply other threads:[~2019-01-30 13:01 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-30 13:01 [PATCH v3 0/5] mtd: rawnand: Support bad block markers in first, second or last page Schrempf Frieder
2019-01-30 13:01 ` [PATCH v3 1/5] mtd: nand: Always store info about bad block markers in chip struct Schrempf Frieder
2019-01-30 13:28 ` Boris Brezillon
2019-01-30 13:37 ` Schrempf Frieder
2019-01-30 13:01 ` [PATCH v3 2/5] mtd: nand: Make flags for bad block marker position more granular Schrempf Frieder
2019-01-30 13:38 ` Boris Brezillon
2019-01-30 13:01 ` [PATCH v3 3/5] mtd: rawnand: Support bad block markers in first, second or last page Schrempf Frieder
2019-01-30 13:01 ` [PATCH v3 4/5] mtd: rawnand: ESMT: Also use the last page for bad block markers Schrempf Frieder
2019-01-30 13:01 ` Schrempf Frieder [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=20190130130111.32724-6-frieder.schrempf@kontron.de \
--to=frieder.schrempf@kontron.de \
--cc=bbrezillon@kernel.org \
--cc=computersforpeace@gmail.com \
--cc=dwmw2@infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=marek.vasut@gmail.com \
--cc=miquel.raynal@bootlin.com \
--cc=richard@nod.at \
/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;
as well as URLs for NNTP newsgroup(s).