From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Lord <liml@rtr.ca>
Subject: Re: [PATCH] libata: Add MMIO support to pata_sil680
Date: Thu, 24 May 2007 16:56:21 -0400
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To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jeff Garzik <jeff@garzik.org>, Alan Cox <alan@redhat.com>, Alan Cox <alan@lxorguk.ukuu.org.uk>, Linux IDE <linux-ide@vger.kernel.org>

Benjamin Herrenschmidt wrote:
>
> The only thing that I'm wondering about a bit is that ata_pause so far
> uses read of altstatus which _is_ a taskfile register. It's my
> understanding that we should avoid doing so in that case.

Technically, altstatus is in the control block rather than the command block,
so it doesn't really always behave the same as the regular "taskfile" regs.

Cheers