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Date: Fri, 30 Nov 2007 15:45:42 +0100
From: fabien <fabien.fb@gmail.com>
To: "Grant Likely" <grant.likely@secretlab.ca>
Subject: Re: ppcboot and powerpc branch question
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2007/11/30, Grant Likely <grant.likely@secretlab.ca>:
> On 11/30/07, fabien <fabien.fb@gmail.com> wrote:
> > hi all,
> >
> > After some problem with my custom board and kernel 2.6.19 about the
> > init process, i've moved
> > on 2.6.23 and that had fixed my problems. (related to this post :
> > http://marc.info/?l=linuxppc-embedded&m=119609022221017&w=2)
> > Apparently it was a problem with cpm_uart on SMC1.
> > (http://lkml.org/lkml/2007/9/23/99)
> > the patch have been integrated in 2.6.23. Now i use this kernel and
> > busybox works.
> > I want to migrated my board in powerpc branch instead of ppc (i plan
> > to use xenomai but in 2.6.23
> > there is only an adeos patch for piowerpc branch), but i see the use
> > of a device tree
> > instead of bd_t struct. I'm a bit disappointed because i also see that
> > older u-boot (in my case
> > ppcboot 1.1.5) aren't capable to pass dts to kernel.
> > Is there a way to keep my old bootloader to boot a powerpc branch kernel ?
>
> Yes, you can build a 'cuImage' in arch/powerpc which wraps the kernel
> image with a device tree and copies the bd_t data into the tree before
> booting.
>
> Cheers,
> g.
>
>
> --
> Grant Likely, B.Sc., P.Eng.
> Secret Lab Technologies Ltd.
> grant.likely@secretlab.ca
> (403) 399-0195
>

Ok, thanks
So do I need to define a dts file or the bd_t struct only will be
sufficient to boot with cuImage ?
Best regards
Fab