linux-kernel - Re: [PATCH] pata_hpt3x3: Major reworking and testing

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Message-ID: <20070703185652.0b807fcc@the-village.bc.nu>
Date:	Tue, 3 Jul 2007 18:56:52 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Cc:	akpm@...l.org, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, jeff@...zik.org
Subject: Re: [PATCH] pata_hpt3x3: Major reworking and testing

> The new improved driver is not really better than the old one because
> the old one is broken. :)
> 
> Old driver does identical configuration when it comes to PIO modes.

No the old driver doesn't even do that. It starts up. It spuriously
adjusts some non writable PCI BAR registers, prints a message about
resources being in use already then exits.

I had a poke around the setup. As far as I can observe we break even if
the ROM timing values are used as is. I suspect documentation or a good
deal of luck is needed.

Alan
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