linux-kernel - Re: [PATCH 2.6.19-rc6][RESEND] ata_piix: IDE mode SATA patch for Intel ICH9

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Message-ID: <4563AB3E.9050305@gmail.com>
Date:	Wed, 22 Nov 2006 10:43:26 +0900
From:	Tejun Heo <htejun@...il.com>
To:	"Gaston, Jason D" <jason.d.gaston@...el.com>
CC:	jgarzik@...ox.com, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2.6.19-rc6][RESEND] ata_piix: IDE mode SATA patch for
 Intel ICH9

Gaston, Jason D wrote:
> I was thinking that if a functional difference was found, it would be
> easier to tweak.
> 
> There are differences between the ICH8 and ICH9 SATA controller.  For
> example, the PCS register now has port present bits that used to be
> reserved in ICH8.  I'm not sure how or if these could be used in
> ata_piix.

Separating ich9 out from ich8 isn't difficult.  Let's do that when there 
is need.  ata_piix always has been using the same entry if there is no 
code difference and I don't see any reason to depart from that with ich9.

Thanks.

-- 
tejun
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