From: Jim Paris <jim@jtan.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: PCI IRQ problems -- update
Date: Sat, 11 Dec 2004 15:23:14 -0500 [thread overview]
Message-ID: <20041211202314.GA22731@jim.sh> (raw)
In-Reply-To: <1102783555.7267.37.camel@localhost.localdomain>
> The PIIX should be in legacy mode by default in which case it would be
> on IRQ 14/15 only. Can you post boot messages ?
This is interesting:
$ lspci -x -s 1f.1
0000:00:1f.1 IDE interface: Intel Corp. 82801CAM IDE U100 (rev 02)
00: 86 80 8a 24 07 00 80 02 02 8e 01 01 00 00 00 00
10: f1 01 00 00 f5 03 00 00 01 00 00 00 01 00 00 00
20: 41 18 00 00 00 00 10 e0 00 00 00 00 f7 10 38 83
30: 00 00 00 00 00 00 00 00 00 00 00 00 ff 01 00 00
The ICH3-M datasheet says offset 0x09 is the Programming Interface
register. Default value is 0x8A (legacy on both), value here is 0x8E
(legacy on primary, native on secondary). This mixed-mode setting
is noted as a disallowed combination in the datasheet.
So it looks like my BIOS is screwing me. Where could/should I fix
this up?
-jim
next prev parent reply other threads:[~2004-12-11 20:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-11 17:35 PCI IRQ problems -- update Jim Paris
2004-12-11 16:45 ` Alan Cox
2004-12-11 20:02 ` Jim Paris
2004-12-12 11:32 ` Alan Cox
2004-12-11 20:23 ` Jim Paris [this message]
2004-12-11 22:03 ` [PATCH] " Jim Paris
2004-12-12 11:43 ` Alan Cox
2004-12-12 11:29 ` Alan Cox
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