From: Graham Moore <grmoore@altera.com>
To: <ggrahammoore@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
Graham Moore <grmoore@altera.com>,
<linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
Alan Tull <atull@altera.com>, Dinh Nguyen <dinguyen@altera.com>,
Yves Vandervennet <rocket.yvanderv@gmail.com>
Subject: [PATCH] In the Denali NAND controller driver, use 8 bytes for READID command.
Date: Fri, 13 Jun 2014 12:46:05 -0500 [thread overview]
Message-ID: <1402681565-7826-1-git-send-email-grmoore@altera.com> (raw)
The Denali NAND driver reads only 5 bytes of ID, but some Hynix and Samsung
have size parameters in the 6th byte. As a result, the page and oob size
for a Hynix H27UAG8T2B were calculated incorrectly and the driver failed to
load.
The solution is to read 8 bytes of ID, as expected by the nand framework.
Signed-off-by: Graham Moore <grmoore@altera.com>
---
drivers/mtd/nand/denali.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 9f2012a..7276125 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -488,7 +488,7 @@ static uint16_t denali_nand_timing_set(struct denali_nand_info *denali)
addr = (uint32_t)MODE_11 | BANK(denali->flash_bank);
index_addr(denali, (uint32_t)addr | 0, 0x90);
index_addr(denali, (uint32_t)addr | 1, 0);
- for (i = 0; i < 5; i++)
+ for (i = 0; i < 8; i++)
index_addr_read_data(denali, addr | 2, &id_bytes[i]);
maf_id = id_bytes[0];
device_id = id_bytes[1];
@@ -1276,7 +1276,7 @@ static void denali_cmdfunc(struct mtd_info *mtd, unsigned int cmd, int col,
addr = (uint32_t)MODE_11 | BANK(denali->flash_bank);
index_addr(denali, (uint32_t)addr | 0, 0x90);
index_addr(denali, (uint32_t)addr | 1, 0);
- for (i = 0; i < 5; i++) {
+ for (i = 0; i < 8; i++) {
index_addr_read_data(denali,
(uint32_t)addr | 2,
&id);
--
1.7.10.4
reply other threads:[~2014-06-13 17:46 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=1402681565-7826-1-git-send-email-grmoore@altera.com \
--to=grmoore@altera.com \
--cc=atull@altera.com \
--cc=computersforpeace@gmail.com \
--cc=dinguyen@altera.com \
--cc=dwmw2@infradead.org \
--cc=ggrahammoore@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=rocket.yvanderv@gmail.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®