From: Matthew Garrett <mjg59@srcf.ucam.org>
To: maximilian attems <max@stro.at>
Cc: Jeff Garzik <jgarzik@pobox.com>, linux-ide@vger.kernel.org
Subject: Re: [PATCH] AHCI: add Dell PowerEdge SC430 pci id
Date: Fri, 9 May 2008 00:34:35 +0100 [thread overview]
Message-ID: <20080508233435.GA15377@srcf.ucam.org> (raw)
In-Reply-To: <1210279228-14521-1-git-send-email-max@stro.at>
On Thu, May 08, 2008 at 10:40:28PM +0200, maximilian attems wrote:
> ATA chipset on Dell PowerEdge SC430 is identified as:
> 00:1f.2 IDE interface [0101]: Intel Corporation 82801GB/GR/GH (ICH7
> Family) Serial ATA Storage Controller IDE [8086:27c0] (rev 01)
>
> Kernel load the ahci driver with NCQ support after I added it's
> device IDs into ahci.c.
Please don't do that. The BIOS has programmed the chip into IDE mode,
not AHCI mode. It seems to have also set up the AHCI BAR, but the
majority of chips with this ID won't have been and so the ahci driver
will fail with them. If the chip was in AHCI mode, the device ID would
automatically have changed to 0x27c1.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2008-05-08 23:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-08 20:40 [PATCH] AHCI: add Dell PowerEdge SC430 pci id maximilian attems
2008-05-08 23:34 ` Matthew Garrett [this message]
2008-05-08 23:46 ` maximilian attems
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