linux-kernel - Re: Please revert: PCI: fix IDE legacy mode resources

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Message-ID: <20071210230716.38da105a@the-village.bc.nu>
Date:	Mon, 10 Dec 2007 23:07:16 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	benh@...nel.crashing.org
Cc:	Ralf Baechle <ralf@...ux-mips.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Yoichi Yuasa <yoichi_yuasa@...peaks.co.jp>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...e.de>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: Re: Please revert: PCI: fix IDE legacy mode resources

> Forcing controllers into native mode tends to be something that really
> only works on -some- controllers. I'm happy to have a hack to try to do
> that on all of them on powermacs, because the range of controllers that
> might not be in native mode in the first place there is pretty small,
> and for CHRP briq, I do it for a specific known controller only.

I'm thinking of doing this solely if the platform has
CONFIG_ATA_NO_LEGACY set. In other words we'd only try this stunt on a
system we *know* cannot address the low PCI space ports.

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