From mboxrd@z Thu Jan  1 00:00:00 1970
From: Scott Wood <scottwood@freescale.com>
Subject: Re: How to handle named resources with DT?
Date: Tue, 9 Aug 2011 16:52:27 -0500
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To: "Cousson, Benoit" <b-cousson@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>, "Hilman, Kevin" <khilman@ti.com>, Paul Walmsley <paul@pwsan.com>, "G, Manjunath Kondaiah" <manjugk@ti.com>, "devicetree-discuss@lists.ozlabs.org" <devicetree-discuss@lists.ozlabs.org>, linux-omap <linux-omap@vger.kernel.org>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>
List-Id: devicetree@vger.kernel.org

On 08/09/2011 04:44 PM, Cousson, Benoit wrote:
> OK, so what about extending the reg attribute to be a reg node?
> 
> dev {
>     reg {
>         name = "foo_wrapper";
>         start = <0x10000>;
>         end = <0x200>;
>     }
>     reg {
>         name = "foo";
>         start = <0x20000>;
>         end = <0x200>;
>     }
> }
> 
> A little bit more verbose, but at least we can add any attribute we want.

A more standard way to do that would be something like:

dev {
	#address-cells = <1>;
	#size-cells = <1>;
	ranges;

	foo {
		reg = <0x10000 0x200>;
	};
	bar {
		reg = <0x20000 0x200>;
	};
};

...which is OK if you need the expressiveness of a full hierarchy (and
don't have some other meaning for child nodes of "dev"), but it seems
like it would be overkill for some places where named resources would be
useful.

-Scott