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From: Andrey Panin <pazke@donpac.ru>
To: Daniel J Blueman <daniel.blueman@gmail.com>
Cc: Tejun Heo <htejun@gmail.com>,
	jgarzik@pobox.com, linux-ide@vger.kernel.org,
	Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: ICH Intel PATA short cable override...
Date: Wed, 5 Sep 2007 10:12:37 +0400	[thread overview]
Message-ID: <20070905061237.GC6882@pazke.donpac.ru> (raw)
In-Reply-To: <6278d2220709040537n4c96ffcagd9c25c94ddd29ca1@mail.gmail.com>

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On 247, 09 04, 2007 at 01:37:22PM +0100, Daniel J Blueman wrote:
> We see that in ata_piix.c, there is a whitelist for (laptop) Intel ICH
> controllers with short cables, tied to specific vendor subsystem IDs.
> Since my mini-ITX Ibase MI910F has the subsystem IDs specified as
> Intel [1], this is unusable.
> 
> I can't find another existing mechanism to add short cable
> information, to allow UDMA/66 for my on-board CF socket.

If this board has useful DMI information, you can add DMI quirk for it.
You can look at pata_via.c or pata_ali.c for example.

> Do you suggest I cook a patch to pass a kernel argument eg 'ich=short'
> or 'pata=short', or can you think of a better mechanism?
> 
> Thanks,
>   Daniel
> 
> --- [1]
> 
> # lspci -vs 00:1f.2
> 00:1f.2 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E)
> SATA IDE Controller (rev 03) (prog-if 80 [Master])
>         Subsystem: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA
> IDE Controller
> 
> # lspci -vns 00:1f.2
> 00:1f.2 0101: 8086:2828 (rev 03) (prog-if 80 [Master])
>         Subsystem: 8086:2828
> -- 
> Daniel J Blueman
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> 

-- 
Andrey Panin		| Linux and UNIX system administrator
pazke@donpac.ru		| PGP key: wwwkeys.pgp.net

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  reply	other threads:[~2007-09-05  6:12 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-04 12:37 ICH Intel PATA short cable override Daniel J Blueman
2007-09-05  6:12 ` Andrey Panin [this message]
2007-09-06  0:42 ` Alan Cox
2007-09-06  2:20   ` Mark Lord
2007-09-06  7:59     ` Daniel J Blueman
2007-09-07 23:19     ` Jeff Garzik
2007-09-10 12:15       ` Mark Lord
2007-09-16  7:58         ` Jeff Garzik

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