From: davej@codemonkey.org.uk
To: alan@redhat.com
Cc: linux-kernel@vger.kernel.org
Subject: amd74xx cable detect.
Date: Mon, 24 Mar 2003 16:41:47 +0000 [thread overview]
Message-ID: <200303241642.h2OGfx35008220@deviant.impure.org.uk> (raw)
A patch from a few weeks back, that seemed to not get
any attention. Currently the cable detection is based upon
reads from an uninitialised variable.
diff -urpN --exclude-from=/home/davej/.exclude bk-linus/drivers/ide/pci/amd74xx.c linux-2.5/drivers/ide/pci/amd74xx.c
--- bk-linus/drivers/ide/pci/amd74xx.c 2003-03-22 12:36:22.000000000 +0000
+++ linux-2.5/drivers/ide/pci/amd74xx.c 2003-03-22 12:41:47.000000000 +0000
@@ -313,7 +313,8 @@ static unsigned int __init init_chipset_
case AMD_UDMA_100:
pci_read_config_byte(dev, AMD_CABLE_DETECT, &t);
- amd_80w = ((u & 0x3) ? 1 : 0) | ((u & 0xc) ? 2 : 0);
+ amd_80w = ((t & 0x3) ? 1 : 0) | ((t & 0xc) ? 2 : 0);
+ pci_read_config_dword(dev, AMD_UDMA_TIMING, &u);
for (i = 24; i >= 0; i -= 8)
if (((u >> i) & 4) && !(amd_80w & (1 << (1 - (i >> 4))))) {
printk(KERN_WARNING "AMD_IDE: Bios didn't set cable bits correctly. Enabling workaround.\n");
reply other threads:[~2003-03-24 16:56 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=200303241642.h2OGfx35008220@deviant.impure.org.uk \
--to=davej@codemonkey.org.uk \
--cc=alan@redhat.com \
--cc=linux-kernel@vger.kernel.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
all inboxes | Powered by JetHome®