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: David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
"linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
Schrempf Frieder <frieder.schrempf@kontron.de>,
Marek Vasut <marek.vasut@gmail.com>
Subject: [PATCH v6 6/7] mtd: rawnand: ESMT: Also use the last page for bad block markers
Date: Wed, 17 Apr 2019 12:36:37 +0000 [thread overview]
Message-ID: <20190417123631.22545-7-frieder.schrempf@kontron.de> (raw)
In-Reply-To: <20190417123631.22545-1-frieder.schrempf@kontron.de>
From: Frieder Schrempf <frieder.schrempf@kontron.de>
It is known that some ESMT SLC NANDs have been shipped
with the factory bad block markers in the first or last page
of the block, instead of the first or second page. To be on
the safe side, let's check all three locations.
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Boris Brezillon <bbrezillon@kernel.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
drivers/mtd/nand/raw/nand_esmt.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/nand_esmt.c b/drivers/mtd/nand/raw/nand_esmt.c
index 58646ed663ac..3338c68aaaf1 100644
--- a/drivers/mtd/nand/raw/nand_esmt.c
+++ b/drivers/mtd/nand/raw/nand_esmt.c
@@ -36,7 +36,14 @@ static void esmt_nand_decode_id(struct nand_chip *chip)
static int esmt_nand_init(struct nand_chip *chip)
{
if (nand_is_slc(chip))
- chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE;
+ /*
+ * It is known that some ESMT SLC NANDs have been shipped
+ * with the factory bad block markers in the first or last page
+ * of the block, instead of the first or second page. To be on
+ * the safe side, let's check all three locations.
+ */
+ chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE |
+ NAND_BBM_LASTPAGE;
return 0;
}
--
2.17.1
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next prev parent reply other threads:[~2019-04-17 12:37 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-17 12:36 [PATCH v6 0/7] mtd: rawnand: Support bad block markers in first, second or last page Schrempf Frieder
2019-04-17 12:36 ` [PATCH v6 1/7] mtd: rawnand: Always store info about bad block markers in chip struct Schrempf Frieder
2019-04-17 12:36 ` [PATCH v6 2/7] mtd: onenand: Store bad block marker position " Schrempf Frieder
2019-04-17 12:36 ` [PATCH v6 3/7] mtd: nand: Cleanup flags and fields for bad block marker position Schrempf Frieder
2019-04-17 12:36 ` [PATCH v6 4/7] mtd: nand: Make flags for bad block marker position more granular Schrempf Frieder
2019-04-17 12:36 ` Schrempf Frieder [this message]
2019-04-17 12:36 ` [PATCH v6 5/7] mtd: rawnand: Support bad block markers in first, second or last page Schrempf Frieder
2019-04-17 12:36 ` [PATCH v6 7/7] mtd: rawnand: AMD: Also use the last page for bad block markers Schrempf Frieder
2019-04-18 16:25 ` [PATCH v6 0/7] mtd: rawnand: Support bad block markers in first, second or last page Miquel Raynal
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