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From: David Daney <david.daney-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH] of/flattree: Early "find node by alias" function
Date: Fri, 21 Oct 2011 09:45:29 -0700
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Cc: "devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org" <devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org>
List-Id: devicetree@vger.kernel.org

On 10/21/2011 08:16 AM, Pawel Moll wrote:
> This patch adds a function for finding a node in flat tree
> based on an alias name. It can be used in early boot code.
>
> Typical use case is a situation when early code needs data
> from a arbitrary tree node, eg. base address of "serial0" to
> initialise debug output or some sort of ID register to
> probe hardware.
>
> The tree source could look like that:
>
> / {
> 	aliases {
> 		serial0 =&uart0;
> 	};
>
> 	uart0: uart@f0001000 {
> 		reg =<0xf0001000 0x1000>;
> 	};
> }
>
> Signed-off-by: Pawel Moll<pawel.moll-5wv7dgnIgG8@public.gmane.org>

How is this patch different/better than:


http://lists.ozlabs.org/pipermail/devicetree-discuss/2011-June/005819.html

David Daney