On Thu, Oct 11, 2007 at 04:13:39PM -0500, Josh Boyer wrote:
> On Thu, 2007-10-11 at 15:12 -0500, Scott Wood wrote:
> > On Thu, Oct 11, 2007 at 03:31:12PM +0200, Stefan Roese wrote:
> > > Yes, good catch. Since I'm not using the bootwrapper, I should be able to
> > > get
> > > rid of WANT_DEVICE_TREE too. But it seems to be autoselected in
> > > arch/powerpc/platforms/Kconfig.cputype for 40x and most other "embedded"
> > > CPU's. Any idea why this is the case?
> >
> > Probably copying from 83xx, 85xx, etc, which set it on the entire CPU family
> > because there's a wrapper platform that covers the entire family. AFAICT,
> > there are only board wrappers for 4xx, so individual boards should be
> > selecting WANT_DEVICE_TREE.
>
> Probably. Seems somewhat redundant at this point to move it into the
> individual board options though.
>
> > In any case, you can just set DEVICE_TREE to an empty string if you only
> > want the regular uImage.
>
> Well, he wants the raw uImage, and a separate DTB to be spit out as far
> as I can tell. So we don't want an empty string here, but what's there
> currently doesn't do the latter part either.
I think it should be DEVICE_TREE="kilauea.dts". DEVICE_TREE will
actually be ignored for building the uImage in any case, but this way
it will be correct if we ever do add a cuboot or other dtb-requiring
bootwrapper for Kilauea.
This is, of course, why CONFIG_DEVICE_TREE makes no real sense and
never has: it's a per-image, not a per-configuration variable.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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