From: Robert Schwebel <r.schwebel@pengutronix.de>
To: Grant Likely <grant.likely@secretlab.ca>
Cc: linuxppc-dev <linuxppc-dev@ozlabs.org>
Subject: Re: Question on mpc52xx_common.c
Date: Tue, 8 Apr 2008 21:45:17 +0200 [thread overview]
Message-ID: <20080408194517.GX13814@pengutronix.de> (raw)
In-Reply-To: <fa686aa40804080752g595196det8f576df1884bac5d@mail.gmail.com>
On Tue, Apr 08, 2008 at 08:52:55AM -0600, Grant Likely wrote:
> It may be ideal, but I don't think it is realistic. I'm now of the
> firm opinion that device trees and firmware are *never* perfect.
> Especially when the definition of perfect is a moving target.
Well observed; isn't this the prove of the assumption that the whole
device tree idea is not working? It is *always* inconsistent and it is
*maintenance hell* because out-of-tree ports do *always* breakt because
of string inconsistencies. We have just ported a 8260 board from 2.6.22
to 2.6.25 and it is almost 100% oftree porting. And you do not even have
a single point of a parser, because all this string parsing is
completely scattered all over the tree.
The ARM method of using just a device number is so much easier ...
Robert
--
Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de
Pengutronix - Linux Solutions for Science and Industry
Handelsregister: Amtsgericht Hildesheim, HRA 2686
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next prev parent reply other threads:[~2008-04-08 20:03 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <m21w5map5f.fsf@ohwell.denx.de>
[not found] ` <m2wsne9a4c.fsf@ohwell.denx.de>
2008-04-03 19:00 ` Question on mpc52xx_common.c Grant Likely
2008-04-07 22:31 ` Matt Sealey
2008-04-08 2:14 ` Arnd Bergmann
2008-04-08 2:25 ` Grant Likely
[not found] ` <23d2e4300804071926n57746a3cj551ef38bf10486c7@mail.gmail.com>
[not found] ` <47FB3CD6.2090706@genesi-usa.com>
2008-04-08 14:52 ` Grant Likely
2008-04-08 19:45 ` Robert Schwebel [this message]
2008-04-08 20:07 ` Scott Wood
2008-04-08 23:51 ` David Gibson
2008-04-09 6:18 ` Wolfgang Denk
2008-04-08 20:12 ` Timur Tabi
2008-04-08 21:26 ` Grant Likely
2008-04-08 21:51 ` Segher Boessenkool
2008-04-09 16:46 ` Matt Sealey
2008-04-10 6:39 ` Robert Schwebel
2008-04-08 7:56 ` Sven Luther
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