From: Peter Pan <peterpansjtu@gmail.com>
To: computersforpeace@gmail.com, dwmw2@infradead.org,
boris.brezillon@free-electrons.com, fransklaver@gmail.com
Cc: linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org,
karlzhang@micron.com, beanhuo@micron.com,
Peter Pan <peterpandong@micron.com>
Subject: [PATCH v2 04/12] mtd: nand_bbt: add nand_bbt_markbad_factory() interface
Date: Tue, 15 Dec 2015 05:59:30 +0000 [thread overview]
Message-ID: <1450159178-29895-5-git-send-email-peterpandong@micron.com> (raw)
In-Reply-To: <1450159178-29895-1-git-send-email-peterpandong@micron.com>
Some nand controller drivers(like docg4.c) mark factory bad block
mark by accessing bbt buffer directly, so create this API to avoid
breaking layer.
Signed-off-by: Peter Pan <peterpandong@micron.com>
---
drivers/mtd/nand/nand_bbt.c | 32 +++++++++++++++++++++++++++++---
include/linux/mtd/nand_bbt.h | 1 +
2 files changed, 30 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index 72aed20..f256be1 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -1353,11 +1353,12 @@ int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
}
/**
- * nand_markbad_bbt - [NAND Interface] Mark a block bad in the BBT
+ * nand_bbt_update_mark - update mark in the BBT
* @mtd: MTD device structure
* @offs: offset of the bad block
+ * @mark: block type mark
*/
-int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs)
+static int nand_bbt_update_mark(struct mtd_info *mtd, loff_t offs, uint8_t mark)
{
struct nand_chip *this = mtd_to_nand(mtd);
int block, ret = 0;
@@ -1365,7 +1366,7 @@ int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs)
block = (int)(offs >> this->bbt_erase_shift);
/* Mark bad block in memory */
- bbt_mark_entry(this, block, BBT_BLOCK_WORN);
+ bbt_mark_entry(this, block, mark);
/* Update flash-based bad block table */
if (this->bbt_options & NAND_BBT_USE_FLASH)
@@ -1374,6 +1375,15 @@ int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs)
return ret;
}
+/**
+ * nand_markbad_bbt - [NAND Interface] Mark a block bad in the BBT
+ * @mtd: MTD device structure
+ * @offs: offset of the bad block
+ */
+int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs)
+{
+ return nand_bbt_update_mark(mtd, offs, BBT_BLOCK_WORN);
+}
EXPORT_SYMBOL(nand_scan_bbt);
/**
@@ -1446,3 +1456,19 @@ int nand_bbt_markbad(struct nand_bbt *bbt, loff_t offs)
return nand_markbad_bbt(bbt->mtd, offs);
}
EXPORT_SYMBOL(nand_bbt_markbad);
+
+/**
+ * nand_bbt_markbad_factory - [NAND BBT Interface] Mark a block as factory bad
+ * in the BBT
+ * @bbt: NAND BBT structure
+ * @offs: offset of the bad block
+ */
+int nand_bbt_markbad_factory(struct nand_bbt *bbt, loff_t offs)
+{
+ /*
+ * FIXME: For now, we call nand_markbad_bbt() directly. It will change
+ * when we use struct nand_bbt instead of struct nand_chip.
+ */
+ return nand_bbt_update_mark(bbt->mtd, offs, BBT_BLOCK_FACTORY_BAD);
+}
+EXPORT_SYMBOL(nand_bbt_markbad_factory);
diff --git a/include/linux/mtd/nand_bbt.h b/include/linux/mtd/nand_bbt.h
index 150c49a..48a0620 100644
--- a/include/linux/mtd/nand_bbt.h
+++ b/include/linux/mtd/nand_bbt.h
@@ -179,5 +179,6 @@ void nand_bbt_release(struct nand_bbt *bbt);
int nand_bbt_markbad(struct nand_bbt *bbt, loff_t offs);
int nand_bbt_isreserved(struct nand_bbt *bbt, loff_t offs);
int nand_bbt_isbad(struct nand_bbt *bbt, loff_t offs);
+int nand_bbt_markbad_factory(struct nand_bbt *bbt, loff_t offs);
#endif /* __LINUX_MTD_NAND_BBT_H */
--
1.9.1
next prev parent reply other threads:[~2015-12-15 6:14 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-15 5:59 [PATCH v2 00/12] mtd: nand_bbt: introduce independent nand BBT Peter Pan
2015-12-15 5:59 ` [PATCH v2 01/12] mtd: nand_bbt: new header for nand family BBT Peter Pan
2015-12-15 5:59 ` [PATCH v2 02/12] mtd: nand_bbt: introduce struct nand_bbt Peter Pan
2016-01-06 13:12 ` Boris Brezillon
2015-12-15 5:59 ` [PATCH v2 03/12] mtd: nand_bbt: add new API definitions Peter Pan
2015-12-15 5:59 ` Peter Pan [this message]
2015-12-15 5:59 ` [PATCH v2 05/12] mtd: nand: use new BBT API instead of old ones Peter Pan
2016-01-06 13:36 ` Boris Brezillon
2016-01-06 14:38 ` Boris Brezillon
2016-01-06 15:22 ` Boris Brezillon
2016-01-07 6:03 ` Peter Pan
2015-12-15 5:59 ` [PATCH v2 06/12] mtd: nand_bbt: use erase() and is_bad_bbm() hook in BBT Peter Pan
2016-01-06 13:49 ` Boris Brezillon
2015-12-15 5:59 ` [PATCH v2 07/12] mtd: nand: make nand_erase_nand() static Peter Pan
2015-12-15 5:59 ` [PATCH v2 08/12] mtd: nand_bbt: remove struct nand_chip from nand_bbt.c Peter Pan
2016-01-06 15:16 ` Boris Brezillon
2016-01-07 6:04 ` Peter Pan
2015-12-15 5:59 ` [PATCH v2 09/12] mtd: nand_bbt: remove old API definitions Peter Pan
2015-12-15 5:59 ` [PATCH v2 10/12] mtd: nand_bbt: remove NAND_BBT_DYNAMICSTRUCT macro Peter Pan
2015-12-15 5:59 ` [PATCH v2 11/12] mtd: nand: remove nand_chip.bbt Peter Pan
2015-12-15 5:59 ` [PATCH v2 12/12] mtd: nand-bbt: move nand_bbt.c to mtd folder Peter Pan
2015-12-28 20:42 ` [PATCH v2 00/12] mtd: nand_bbt: introduce independent nand BBT Ezequiel Garcia
2015-12-29 9:35 ` Boris Brezillon
2015-12-29 15:07 ` Ezequiel Garcia
2015-12-29 15:11 ` Boris Brezillon
2015-12-30 7:18 ` 潘栋
2015-12-30 8:31 ` Boris Brezillon
2016-01-06 14:29 ` Boris Brezillon
2016-01-07 5:53 ` Peter Pan
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=1450159178-29895-5-git-send-email-peterpandong@micron.com \
--to=peterpansjtu@gmail.com \
--cc=beanhuo@micron.com \
--cc=boris.brezillon@free-electrons.com \
--cc=computersforpeace@gmail.com \
--cc=dwmw2@infradead.org \
--cc=fransklaver@gmail.com \
--cc=karlzhang@micron.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=peterpandong@micron.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
all inboxes | Powered by JetHome®