linux-kernel - Re: [RFC] [PATCH] Device Tree on ARM platform

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Date:	Thu, 28 May 2009 11:51:26 +0200
From:	Wolfgang Denk <wd@...x.de>
To:	Grant Likely <grant.likely@...retlab.ca>
cc:	Robert Schwebel <r.schwebel@...gutronix.de>,
	Scott Wood <scottwood@...escale.com>,
	devicetree-discuss <devicetree-discuss@...abs.org>,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.arm.linux.org.uk,
	Janboe Ye <yuan-bo.ye@...orola.com>,
	Timur Tabi <timur@...escale.com>, rmk@....linux.org.uk
Subject: Re: [RFC] [PATCH] Device Tree on ARM platform

Dear Grant Likely,

In message <fa686aa40905272029n32aa5f1ds86d07f0de4894815@...l.gmail.com> you wrote:
>
> Personally, I attribute a lot of that in powerpc land to the fact that
> we had no clue what we were doing when we started the process of
> porting all powerpc platforms to use the device tree.  It was hard.
> It was painful.  We didn't have much established convention to learn
> from.  However, now that it is complete I would say that it has been a
> net-win and it is now simpler to bring up new boards and SoCs than it
> ever was before.

True. From a commercial point of view this is a huge  problem  casued
by the device tree - custumers who used to oder a BSP from commercial
service providers (like Robert or me :-) now often find that all they
need  to  do is to tweak the device tree to get their system running.
Lost business. D*mn...  [Maybe this explains Robert's reluctance?]

But as stated before:  from the engineering point of view it's a real
big win now.

Best regards,

Wolfgang Denk

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