From: "Eric Bénard" <eric@eukrea.com>
To: barebox@lists.infradead.org
Subject: [PATCH] cfi_flash_intel: support 1024b buffer write
Date: Mon, 17 May 2010 18:14:20 +0200 [thread overview]
Message-ID: <1274112860-18684-1-git-send-email-eric@eukrea.com> (raw)
newer Numonyx Strataflash P3x have 1024b buffer, thus, it's possible
to write a buffer size of 0x200 which the actual flash_write_cmd
doesn't permit as it's limited to a uchar parameter.
Signed-off-by: Eric Bénard <eric@eukrea.com>
---
drivers/nor/cfi_flash.c | 11 +++++++++++
drivers/nor/cfi_flash.h | 1 +
drivers/nor/cfi_flash_intel.c | 5 ++++-
3 files changed, 16 insertions(+), 1 deletions(-)
diff --git a/drivers/nor/cfi_flash.c b/drivers/nor/cfi_flash.c
index dbfb004..b17d1a0 100644
--- a/drivers/nor/cfi_flash.c
+++ b/drivers/nor/cfi_flash.c
@@ -863,6 +863,17 @@ void flash_write_cmd (flash_info_t * info, flash_sect_t sect, uint offset, uchar
flash_write_word(info, cword, addr);
}
+void flash_write_cmd16 (flash_info_t * info, flash_sect_t sect, uint offset, ushort cmd)
+{
+
+ uchar *addr;
+ cfiword_t cword;
+
+ addr = flash_make_addr (info, sect, offset);
+ cword.w = cmd;
+ flash_write_word(info, cword, addr);
+}
+
int flash_isequal (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
{
cfiptr_t cptr;
diff --git a/drivers/nor/cfi_flash.h b/drivers/nor/cfi_flash.h
index a8fa879..23a4792 100644
--- a/drivers/nor/cfi_flash.h
+++ b/drivers/nor/cfi_flash.h
@@ -182,6 +182,7 @@ extern struct cfi_cmd_set cfi_cmd_set_amd;
int flash_isset (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
void flash_write_cmd (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
+void flash_write_cmd16 (flash_info_t * info, flash_sect_t sect, uint offset, ushort cmd);
flash_sect_t find_sector (flash_info_t * info, ulong addr);
int flash_status_check (flash_info_t * info, flash_sect_t sector,
uint64_t tout, char *prompt);
diff --git a/drivers/nor/cfi_flash_intel.c b/drivers/nor/cfi_flash_intel.c
index e4dfdfa..5b804db 100644
--- a/drivers/nor/cfi_flash_intel.c
+++ b/drivers/nor/cfi_flash_intel.c
@@ -71,7 +71,10 @@ static int intel_flash_write_cfibuffer (flash_info_t * info, ulong dest, const u
/* reduce the number of loops by the width of the port */
cnt = len >> (info->portwidth - 1);
- flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
+ if (cnt > 0x100)
+ flash_write_cmd16 (info, sector, 0, (ushort) cnt - 1);
+ else
+ flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
while (cnt-- > 0) {
if (bankwidth_is_1(info)) {
*dst.cp++ = *src.cp++;
--
1.6.3.3
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
next reply other threads:[~2010-05-17 16:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-17 16:14 Eric Bénard [this message]
2010-05-17 16:19 ` Eric Bénard
2010-07-30 9:49 Eric Bénard
2010-08-04 7:42 ` Sascha Hauer
2010-08-04 7:48 ` Eric Bénard
2010-08-04 8:00 ` Sascha Hauer
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=1274112860-18684-1-git-send-email-eric@eukrea.com \
--to=eric@eukrea.com \
--cc=barebox@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