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From: "Gerhard Pircher" <gerhard_pircher@gmx•net>
To: David Gibson <david@gibson•dropbear.id.au>, segher@kernel•crashing.org
Cc: linuxppc-dev@ozlabs•org
Subject: Re: [RFC] AmigaOne device tree source v2
Date: Mon, 03 Sep 2007 18:11:56 +0200	[thread overview]
Message-ID: <20070903161156.306700@gmx.net> (raw)
In-Reply-To: <20070903101234.GA12212@localhost.localdomain>

Hi,

-------- Original-Nachricht --------
> Datum: Mon, 3 Sep 2007 20:12:34 +1000
> Von: David Gibson <david@gibson•dropbear.id.au>
> An: Segher Boessenkool <segher@kernel•crashing.org>
> CC: linuxppc-dev@ozlabs•org
> Betreff: Re: [RFC] AmigaOne device tree source v2

> On Mon, Sep 03, 2007 at 12:02:58PM +0200, Segher Boessenkool wrote:
> > Yeah, PCI is a special case for Linux.  Maybe add a "pciclass,XXXX"
> > compatible property though, for good measure.  Anything else isn't
> > all that useful I think.
Wouldn't that be the same as the class-code property?

> Indeed, since PCI is probable, it's unclear whether these device nodes
> are even necessary at all.  Depends on whether there's anything
> interesting in the omitted interrupt routing information.
Well, I mainly specified the device node for the IDE controller, because
it works in compatible mode and thus the IDE driver needs to know about
the I/O ports. I guess the driver doesn't probe the BARs, if the
controller is configured for compatible mode (and AFAIK a VIA IDE
controller cannot be made work in fully native mode). Also the ppc_ide_md
function hooks are considered obsolete.
The interrupts for the IDE controller are another story. Judging from
what some developers wrote on this mailing list, there doesn't seem to
be a way to define legacy IDE interrupts (14 & 15) for a PCI device node.
Therefore I'll reuse the IDE interrupt quirk for the Pegasos.

Gerhard
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  reply	other threads:[~2007-09-03 16:11 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-31 17:50 [RFC] AmigaOne device tree source v2 Gerhard Pircher
2007-09-03  1:34 ` David Gibson
2007-09-03  8:41   ` Benjamin Herrenschmidt
2007-09-03 10:02     ` Segher Boessenkool
2007-09-03 10:12       ` David Gibson
2007-09-03 16:11         ` Gerhard Pircher [this message]
2007-09-03 22:52           ` Segher Boessenkool
2007-09-04  0:27             ` David Gibson
2007-09-06 13:31               ` Segher Boessenkool
2007-09-04 12:20             ` Gerhard Pircher
2007-09-06 13:41               ` Segher Boessenkool
2007-09-03 14:58   ` Gerhard Pircher
2007-09-03 22:32     ` Segher Boessenkool
2007-09-04 11:49       ` Gerhard Pircher
2007-09-05  2:48         ` David Gibson
2007-09-05 11:54           ` Gerhard Pircher
2007-09-06 14:00             ` Segher Boessenkool
2007-09-06 14:09               ` Sven Luther
2007-09-06 14:42                 ` Segher Boessenkool
2007-09-06 13:56           ` Segher Boessenkool
2007-09-06 14:15             ` PCI I/O space -- reg or ranges? Scott Wood
2007-09-06 20:51               ` Gerhard Pircher
2007-09-06 21:01                 ` Segher Boessenkool
2007-09-07  0:20             ` [RFC] AmigaOne device tree source v2 David Gibson
2007-09-06 13:36         ` Segher Boessenkool
2007-09-06 21:09           ` Gerhard Pircher
2007-09-07  0:21           ` David Gibson

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