From: Brian Foster <brian.foster@maximintegrated.com>
To: "linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>
Cc: Florian Fainelli <ffainelli@freebox.fr>
Subject: [PATCH] Init ONFI get/set features in a more logical place
Date: Thu, 4 Jul 2013 14:05:09 +0200 [thread overview]
Message-ID: <196135732.t1bWnDcIrg@laclwks004> (raw)
In-Reply-To: <CACwUX0NXgTC=uQ7CZoY=anBuMhfyN31GFuYAV5EhBUZT9Nm2_w@mail.gmail.com>
[-- Attachment #1: Type: text/plain, Size: 1271 bytes --]
Attached (SORRY! see below) is a Patch based on some
work being done on a v2.6.36-based kernel (with parts
of more recent MTD/NAND support backported), to add
support for Micron on-die ECC to Maxim Integrated's
MAX32590 (JIBE) reference boards.
This Patch makes a minor change to initialization order
so code between nand_scan_ident() and nand_scan_tail()
can easily get (or set) ONFI features.
Since the original Patch is based on that older kernel,
I can neither confirm nor deny it builds and works with
the latest kernel/MTD/NAND source. However, I also have
no reason to believe it won't build or work.
Due to limitations of the e-mail server, the Patch is
attached rather then being included inline. Apologies.
Even so, the bloody server has _probably_ added CRs (\r),
so you will _probably_ have to run the attached Patch
through dos2unix(1) before it will apply. ;-\
CC-ed to the author of the original work. Since I do
not regularly read this list (linux-mtd), any e-mail
not CC-ed to me _may_ not be seen. Apologies!
cheers!
-blf-
--
Brian Foster
Principal MTS, Software | La Ciotat, France
Office: +33 (0)4 42 98 15 35 | Fax: +33 (0)4 42 08 33 19
Maxim Integrated | http://www.maximintegrated.com/
[-- Attachment #2: 0001-Init-ONFI-get-set-features-in-a-more-logical-place.patch --]
[-- Type: text/x-patch, Size: 1891 bytes --]
>From 400afdd7734c74881e208ae4b7fdb2a3dc2220bb Mon Sep 17 00:00:00 2001
From: Brian Foster <brian.foster@maximintegrated.com>
Date: Thu, 4 Jul 2013 13:35:31 +0200
Subject: [PATCH] Init ONFI get/set features in a more logical place
For some reason the ONFI get/set feature handlers were
being initialized in nand_scan_tail(), making it rather
difficult to use the default handlers after nand_scan_ident(),
which determines whether or not the NAND chip is ONFI-compliant.
Move the handler initialization into nand_set_defaults(),
where most handlers are initialized.
Change-Id: I055179ab3d4ea23780879197f4add02e27e6c0d1
Signed-off-by: Brian Foster <brian.foster@maximintegrated.com>
Cc: Florian Fainelli <ffainelli@freebox.fr>
---
drivers/mtd/nand/nand_base.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index dfcd0a5..aab79f7 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2814,6 +2814,11 @@ static void nand_set_defaults(struct nand_chip *chip, int busw)
init_waitqueue_head(&chip->controller->wq);
}
+ /* set for ONFI nand */
+ if (!chip->onfi_set_features)
+ chip->onfi_set_features = nand_onfi_set_features;
+ if (!chip->onfi_get_features)
+ chip->onfi_get_features = nand_onfi_get_features;
}
/* Sanitize ONFI strings so we can safely print them */
@@ -3446,12 +3451,6 @@ int nand_scan_tail(struct mtd_info *mtd)
if (!chip->write_page)
chip->write_page = nand_write_page;
- /* set for ONFI nand */
- if (!chip->onfi_set_features)
- chip->onfi_set_features = nand_onfi_set_features;
- if (!chip->onfi_get_features)
- chip->onfi_get_features = nand_onfi_get_features;
-
/*
* Check ECC mode, default to software if 3byte/512byte hardware ECC is
* selected and we have 256 byte pagesize fallback to software ECC
--
1.7.9.5
next prev parent reply other threads:[~2013-07-04 12:05 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-19 14:14 [Q] Using Micron 4-bit on-die ECC with v2.6.36 kernel? Brian Foster
2013-06-19 21:40 ` David Mosberger-Tang
2013-07-03 8:49 ` Brian Foster
[not found] ` <CACwUX0NXgTC=uQ7CZoY=anBuMhfyN31GFuYAV5EhBUZT9Nm2_w@mail.gmail.com>
2013-07-04 12:05 ` Brian Foster [this message]
2013-08-05 9:39 ` [PATCH] Init ONFI get/set features in a more logical place Artem Bityutskiy
2013-07-04 12:35 ` [Q] Using Micron 4-bit on-die ECC with v2.6.36 kernel? Brian Foster
[not found] ` <CACwUX0PaXg+hAqjeB2AK+7FEzr506RTNfNSHQAW+BJ-AnAQxKA@mail.gmail.com>
2013-07-04 13:07 ` Brian Foster
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=196135732.t1bWnDcIrg@laclwks004 \
--to=brian.foster@maximintegrated.com \
--cc=ffainelli@freebox.fr \
--cc=linux-mtd@lists.infradead.org \
/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