RE: linux-next - multi-omap image fails to boot on omap3/4

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Tony Lindgren wrote:
> * Gadiyar, Anand <gadiyar@xxxxxx> [101019 23:21]:

...

> > >>> > >> linux-next, as of 20101019, built with the
omap2plus_defconfig fails
> > >>> > >> to boot on omap3 and omap4. (I've disabled CONFIG_ARCH_OMAP2
or
> > >>> > >> CONFIG_SWP_EMULATE to get the image to build). Building with
only
> > >>> > >> ARCH_OMAP3 allows the resultant image to boot up on OMAP3.
Likewise,
> > >>> > >> an image built with only ARCH_OMAP4 boots up on OMAP4 boards.
> > >>> > >>
> > >>> > >> earlyprintk does not provide any additional prints after
> > >>> > >> "Uncompressing Linux... done, booting the kernel."
> > >>> > >>
> > >>> > >> Any ideas where to look?
> > >>> > >

...

> >
> > I tried disabling CONFIG_SMP and CONFIG_SMP_ON_UP, and the resulting
> > image booted up just fine.
>
> Looks like it's caused by this patch:
>
> "ARM: hotplug cpu: Keep processor information, startup code &
> __lookup_processor_type"
>
> It's probably trashing registers it shouldn't. Will take a look and post
> something to linux-arm-kernel.
>

I'm not sure what's going on, but looks like linux-next as of
20101022 boots up fine on panda. I can't explain it, as I couldn't
find anything related to the patch you mentioned.

- Anand
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