linux-kernel - Re: [RFC] Device Tree Overlays Proposal (Was Re: capebus moving omap

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Message-Id: <5ED17D42-07B8-4D4F-B54F-82B4CC60584C@antoniou-consulting.com>
Date:	Wed, 7 Nov 2012 09:13:36 +0100
From:	Pantelis Antoniou <panto@...oniou-consulting.com>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	Rob Herring <robherring2@...il.com>,
	Deepak Saxena <dsaxena@...aro.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Scott Wood <scottwood@...escale.com>,
	Tony Lindgren <tony@...mide.com>, Russ Dill <Russ.Dill@...com>,
	Felipe Balbi <balbi@...com>, Benoit Cousson <b-cousson@...com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Koen Kooi <koen@...inion.thruhere.net>,
	Matt Porter <mporter@...com>, linux-omap@...r.kernel.org,
	Kevin Hilman <khilman@...com>, Paul Walmsley <paul@...an.com>,
	devicetree-discuss@...ts.ozlabs.org
Subject: Re: [RFC] Device Tree Overlays Proposal (Was Re: capebus moving omap_devices to mach-omap2)

Hi Grant

On Nov 6, 2012, at 9:45 PM, Grant Likely wrote:

> On Tue, Nov 6, 2012 at 7:34 PM, Pantelis Antoniou
> <panto@...oniou-consulting.com> wrote:

[ snip ]
> 
> g.

Since we've started talking about longer term goals, and the versioning
provision seems to stand, I hope we address how much the fragment versioning
thing is similar to the way board revisions progress.

If a versioning syntax is available then one could create a single DT 
file for a bunch of 'almost' similar board and board revisions.

Using a single DTB in the same manner you have a single uImage would
make some people quite happy, since you won't have to do any bootloader
magic to make sure you pass the correct DTB for the specific revision.

Regards

-- Pantelis

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