ppcboot and powerpc branch question

Grant Likely grant.likely at secretlab.ca
Sat Dec 1 00:43:24 EST 2007

On 11/30/07, fabien <fabien.fb at 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


Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
grant.likely at secretlab.ca
(403) 399-0195

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