From: Zach Brown <zach.brown@ni.com>
To: <dwmw2@infradead.org>
Cc: <computersforpeace@gmail.com>,
<boris.brezillon@free-electrons.com>, <richard@nod.at>,
<dedekind1@gmail.com>, <linux-mtd@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH v6 3/5] mtd: nand: Add max_bb_per_die and blocks_per_die fields to nand_chip
Date: Wed, 30 Nov 2016 10:57:29 -0600 [thread overview]
Message-ID: <1480525051-4991-4-git-send-email-zach.brown@ni.com> (raw)
In-Reply-To: <1480525051-4991-1-git-send-email-zach.brown@ni.com>
The fields max_bb_per_die and blocks_per_die are useful determining the
number of bad blocks a MTD needs to allocate. How they are set will
depend on if the chip is ONFI, JEDEC or a full-id entry in the nand_ids
table.
Signed-off-by: Zach Brown <zach.brown@ni.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electron.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
---
include/linux/mtd/nand.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index d8905a2..8e9dce1 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -771,6 +771,9 @@ nand_get_sdr_timings(const struct nand_data_interface *conf)
* supported, 0 otherwise.
* @jedec_params: [INTERN] holds the JEDEC parameter page when JEDEC is
* supported, 0 otherwise.
+ * @max_bb_per_die: [INTERN] the max number of bad blocks each die of a
+ * this nand device will encounter their life times.
+ * @blocks_per_die: [INTERN] The number of PEBs in a die
* @read_retries: [INTERN] the number of read retry modes supported
* @onfi_set_features: [REPLACEABLE] set the features for ONFI nand
* @onfi_get_features: [REPLACEABLE] get the features for ONFI nand
@@ -853,6 +856,8 @@ struct nand_chip {
struct nand_onfi_params onfi_params;
struct nand_jedec_params jedec_params;
};
+ u16 max_bb_per_die;
+ u32 blocks_per_die;
struct nand_data_interface *data_interface;
--
2.7.4
next prev parent reply other threads:[~2016-11-30 16:58 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-30 16:57 [PATCH v6 0/5] mtd: use ONFI bad blocks per LUN to calculate UBI bad PEB limit Zach Brown
2016-11-30 16:57 ` [PATCH v6 1/5] mtd: introduce function max_bad_blocks Zach Brown
2016-12-12 22:48 ` Brian Norris
2016-11-30 16:57 ` [PATCH v6 2/5] mtd: ubi: use 'max_bad_blocks' to compute bad_peb_limit if available Zach Brown
2016-11-30 16:57 ` Zach Brown [this message]
2016-11-30 16:57 ` [PATCH v6 4/5] mtd: nand: implement 'max_bad_blocks' mtd function Zach Brown
2016-11-30 16:57 ` [PATCH v6 5/5] mtd: nand: set max_bb_per_die and blocks_per_die for ONFI compliant chips Zach Brown
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=1480525051-4991-4-git-send-email-zach.brown@ni.com \
--to=zach.brown@ni.com \
--cc=boris.brezillon@free-electrons.com \
--cc=computersforpeace@gmail.com \
--cc=dedekind1@gmail.com \
--cc=dwmw2@infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--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).