From mboxrd@z Thu Jan  1 00:00:00 1970
From: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Subject: Re: [Power.org:parch] devicetree: Musings on reserved regions
Date: Tue, 08 Feb 2011 08:39:26 +1100
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To: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
Cc: "parch-QRwYI7m9GJLYtjvyW6yDsg@public.gmane.org" <parch-QRwYI7m9GJLYtjvyW6yDsg@public.gmane.org>, devicetree-discuss <devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org>, David Gibson <dwg-8fk3Idey6ehBDgjK7y7TUQ@public.gmane.org>, Stuart Yoder <b08248-KZfg59tc24xl57MIdRCFDg@public.gmane.org>, Scott Wood <scottwood-KZfg59tc24xl57MIdRCFDg@public.gmane.org>, Matthew McClintock <msm-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
List-Id: devicetree@vger.kernel.org


> In addition to the reserved regions block in the header, define a set
> of properties in the memory node that specify the reserved regions
> with the name reflecting the usage.
> For example:
> 
> 	memory@0 {
> 		device_type = "memory";
> 		reg = <0 0x40000000>;
> 		reserved-ramdisk = <0xc00000 0x200000>; /* 2MB ramdisk */
> 		reserved-dtb = <0xbf0000 0x1000>; /* devicetree */
> 		reserved-fb0 = 0x1000000 0x400000>; /* framebuffer */
> 	};
> 
> Each reserved property would start with "reserved-" followed by a
> name.  reserved-ramdisk and reserved-dtb would be reserved for ramdisk
> and dtb images respectively.  Other names could also be defined; for
> example, reserved-openfirmware.

I very much dislike the list of properties with magic names. I'd rather
have a pair of properties containing lists (reserved-names and
reserved-ranges).

Cheers,
Ben.