From: "Gerhard Pircher" <gerhard_pircher@gmx•net>
To: Segher Boessenkool <segher@kernel•crashing.org>
Cc: linuxppc-dev@ozlabs•org, david@gibson•dropbear.id.au
Subject: Re: [RFC] Device tree for new desktop platform in arch/powerpc
Date: Tue, 19 Jun 2007 14:37:21 +0200 [thread overview]
Message-ID: <20070619123721.202110@gmx.net> (raw)
In-Reply-To: <81b5cc3c799c9ec65df04468d4d9051e@kernel.crashing.org>
-------- Original-Nachricht --------
Datum: Tue, 19 Jun 2007 12:08:06 +0200
Von: Segher Boessenkool <segher@kernel•crashing.org>
An: "Gerhard Pircher" <gerhard_pircher@gmx•net>
CC: linuxppc-dev@ozlabs•org, david@gibson•dropbear.id.au
Betreff: Re: [RFC] Device tree for new desktop platform in arch/powerpc
> > I guess I can define both of them or do they conflict (IIRC
> > the two hardware revision should be compatible)?
>
> Use one or the other, not both. Perhaps you'll need
> to add the pnpPNP,500 and pnpPNP,501 entries to the
> generic OF serial code, should be trivial to do.
I guess I stick with compatible = "serial" for now, as it should
also work with the generic serial console support code.
> The 16550A supports something the 16550 doesn't (don't
> ask me what, I forgot :-) ), so don't say it is an A
> when it isn't; the other way around is fine though.
>
> And it doesn't matter much for Linux anyway currently,
> the "generic" kernel driver will do its own wacky probing.
Yes, that's why the current AmigaOne kernels (2.6.16) detect 3 serial
ports, whereas there should be only 2 (the first two are detected by
probing for the VIA southbridge and the last one IIRC is registered by
request_region()). I hope the device tree fixes this.
> > Where are all this "pnpPNP,xxx" identifiers specified (except
> > for serial parallel, fdc, keyboard, mouse)?
>
> They are defined by the vendor of the devices; for
> vendor "PNP", i.e. legacy non-PNP PC devices, that
> is MicroSoft.
Downloaded the file you pointed to and the OF generic names document. I
thought the OF core specification defines them, but it's not available
freely.
Thanks a lot!
Gerhard
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next prev parent reply other threads:[~2007-06-19 12:37 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-18 18:57 [RFC] Device tree for new desktop platform in arch/powerpc Gerhard Pircher
2007-06-18 19:15 ` Mark A. Greer
2007-06-18 19:43 ` Gerhard Pircher
2007-06-18 20:25 ` Mark A. Greer
2007-06-19 5:08 ` David Gibson
2007-06-19 5:42 ` David Gibson
2007-06-19 6:16 ` Segher Boessenkool
2007-06-19 8:40 ` Gerhard Pircher
2007-06-19 9:14 ` Segher Boessenkool
2007-06-19 9:52 ` Gerhard Pircher
2007-06-19 10:08 ` Segher Boessenkool
2007-06-19 12:37 ` Gerhard Pircher [this message]
2007-06-19 13:15 ` Segher Boessenkool
2007-06-19 13:29 ` Gerhard Pircher
2007-06-21 12:42 ` Benjamin Herrenschmidt
2007-06-21 13:28 ` Gerhard Pircher
2007-06-21 14:59 ` Segher Boessenkool
2007-06-21 14:29 ` Segher Boessenkool
2007-06-21 23:25 ` Benjamin Herrenschmidt
2007-06-22 7:52 ` Segher Boessenkool
2007-06-22 8:16 ` Benjamin Herrenschmidt
2007-06-22 9:10 ` Segher Boessenkool
2007-06-19 6:08 ` Segher Boessenkool
2007-06-19 9:08 ` Gerhard Pircher
2007-06-19 9:28 ` Segher Boessenkool
2007-06-21 12:36 ` Benjamin Herrenschmidt
2007-06-21 13:20 ` Gerhard Pircher
2007-06-21 14:38 ` Segher Boessenkool
2007-06-21 16:27 ` Gerhard Pircher
2007-06-21 23:22 ` Benjamin Herrenschmidt
2007-06-22 13:12 ` Gerhard Pircher
2007-06-22 13:40 ` Benjamin Herrenschmidt
2007-06-21 14:24 ` Segher Boessenkool
2007-06-21 16:21 ` Gerhard Pircher
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