From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Jeff Garzik <jeff@garzik.org>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3] ide: fix drive_is_ready() for non-PCI hosts and CONFIG_IDEPCI_SHARE_IRQ=y
Date: Fri, 26 Oct 2007 12:53:55 +0100 [thread overview]
Message-ID: <20071026125355.7c4a3398@the-village.bc.nu> (raw)
In-Reply-To: <472137E8.9020109@garzik.org>
On Thu, 25 Oct 2007 20:42:16 -0400
Jeff Garzik <jeff@garzik.org> wrote:
> Alan Cox wrote:
> > On Fri, 26 Oct 2007 01:36:37 +0200
> > Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> wrote:
> >
> >> Need to check if the host is a PCI one before reading IDE_ALTSTATUS_REG.
> >>
> >> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
> >
> > Umm why ? The altstatus register goes back to ST-506 and the original IBM
> > XT hard disk controller card ?
>
> I'm pretty sure there are at least a few controllers out there where the
> AltStatus/Control register block is simply non-existent.
One or two of the commode Amiga controllers did this. Makes error
recovery rather interesting. The register itself is however present even
on things like the WD10xx devices.
Alan
prev parent reply other threads:[~2007-10-26 11:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-25 23:36 Bartlomiej Zolnierkiewicz
2007-10-26 0:05 ` Alan Cox
2007-10-26 0:30 ` Bartlomiej Zolnierkiewicz
2007-10-26 0:35 ` Alan Cox
2007-10-26 0:42 ` Jeff Garzik
2007-10-26 11:53 ` Alan Cox [this message]
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