linux-kernel - Re: [2.6 patch] select ATA

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Message-ID: <4810A780.9040508@ru.mvista.com>
Date:	Thu, 24 Apr 2008 19:30:08 +0400
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Tejun Heo <htejun@...il.com>, Jeff Garzik <jeff@...zik.org>,
	Adrian Bunk <bunk@...nel.org>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org
Subject: Re: [2.6 patch] select ATA_SFF

Alan Cox wrote:

>>    If you mean SFF-8038i (which can indeed be named "SFF/Intel"), it
>>documents *only* BMDMA.  If you mean something else, please be more precise.

> It documents where the PIO spaces are mapped, the class codes and then

    I'd like to know what do you mean by "it" since it's certainly not in 
8038i spec I have.

> documents the rest by inheriting it from the other specs. That makes it
> the definitive spec for PCI "standard" controllers both PIO and DMA and

    That looks like ""Intel PCI IDE Controller Specification".

> it is indeed followed literally by just about every PCI ATA controller
> except the CS5520

    You probaly mean PC targeted controllers, since quite many non-PC chips do 
ignore that spec (IOC4, PowerMac, Toshiba SCC)... As for CS5520, what's the 
deviation here -- BMDMA regisrters at BAR2 only?

> Alan

MBR, Sergei
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