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Re: [PATCH] ide: New libata driver for OCTEON SOC Compact Flash interfac

To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [PATCH] ide: New libata driver for OCTEON SOC Compact Flash interface.
From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Date: Sun, 23 Nov 2008 20:14:34 +0300
Cc: David Daney <ddaney@caviumnetworks.com>, linux-ide@vger.kernel.org, linux-mips <linux-mips@linux-mips.org>
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Hello, I wrote:

But if you're saying that there is only DMA completion inetrrupt, you *cannot* completely emulate SFF-8038i BMDMA since its interrupt status is the (delayed) IDE INTRQ status. I suggest that you move away from the emulation -- Alan has said it's possible.

I don't see whats wrong with treating it that way if it keeps the amount
of code needed down.

Well, as ata_sff_host_intr() doesn't get called, probably nothing indeed...

Hm, it does get called but only with BSY=0, so all this seems more tricky than I thought...

MBR, Sergei



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