linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
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 v4 3/5] mtd: nand: Add bb_per_die and blocks_per_die fields to nand_chip
Date: Tue, 1 Nov 2016 13:16:28 -0500	[thread overview]
Message-ID: <1478024190-13713-4-git-send-email-zach.brown@ni.com> (raw)
In-Reply-To: <1478024190-13713-1-git-send-email-zach.brown@ni.com>

The fields 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>
---
 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..3093827 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.
+ * @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  bb_per_die;
+	u32  blocks_per_die;
 
 	struct nand_data_interface *data_interface;
 
-- 
2.7.4

  parent reply	other threads:[~2016-11-01 18:17 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-01 18:16 [PATCH v4 0/5] mtd: use ONFI bad blocks per LUN to calculate UBI bad PEB limit Zach Brown
2016-11-01 18:16 ` [PATCH v4 1/5] mtd: introduce function max_bad_blocks Zach Brown
2016-11-01 18:16 ` [PATCH v4 2/5] mtd: ubi: use 'max_bad_blocks' to compute bad_peb_limit if available Zach Brown
2016-11-01 18:16 ` Zach Brown [this message]
2016-11-06 17:49   ` [PATCH v4 3/5] mtd: nand: Add bb_per_die and blocks_per_die fields to nand_chip Boris Brezillon
2016-11-01 18:16 ` [PATCH v4 4/5] mtd: nand: implement 'max_bad_blocks' mtd function Zach Brown
2016-11-01 18:16 ` [PATCH v4 5/5] mtd: nand: set bb_per_die and blocks_per_die for ONFI compliant chips Zach Brown
2016-11-06 17:51 ` [PATCH v4 0/5] mtd: use ONFI bad blocks per LUN to calculate UBI bad PEB limit Boris Brezillon

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=1478024190-13713-4-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).