linux-kernel - Re: [PATCH] ata: libata depends on HAS

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Date:	Wed, 13 May 2009 12:39:00 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Brad Boyer <flar@...andria.com>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, linux-kernel@...r.kernel.org,
	Jeff Garzik <jgarzik@...ox.com>, linux-ide@...r.kernel.org,
	takata@...ux-m32r.org, geert@...ux-m68k.org,
	linux-m68k@...ts.linux-m68k.org, ysato@...rs.sourceforge.jp
Subject: Re: [PATCH] ata: libata depends on HAS_DMA

On Wednesday 13 May 2009, Brad Boyer wrote:
> If I'm reading the m68k code correctly, SUN3 is the one that doesn't have
> DMA. It is implemented on any m68k with a standard Motorola MMU. It might
> be possible to get the DMA code working on a sun3, but I doubt they ever
> have IDE hardware.

Yes, that's right, I misread the Kconfig logic.

In m68nommu, there are also Dragonball and MC68360 that are supported
but don't support the DMA API right now. Is that a real limitation, or
could those potentially have ATA ports?

	Arnd <><
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