I've had similar problems on the AU1100 platform. It turned out the
interrupt enumeration was faulty. You might want to check this.
> -----Oorspronkelijk bericht-----
> Van: firstname.lastname@example.org
> [mailto:email@example.com] Namens Daniel Laird
> Verzonden: donderdag 28 februari 2008 13:58
> Aan: firstname.lastname@example.org
> Onderwerp: PNX8550 Broken on Linux 2.6.24 - Interrupt issues?
> Hi all.
> I have been happily using Linux 126.96.36.199 for ages on PNX8550 (STB810).
> I have recently decided to step up and move onto Linux 2.6.24 series.
> However I am not getting very far. :-(
> It seems that all the clock stuff has changed again (since
> 188.8.131.52) and this is causing issues.
> The board crashes as soon as local_irq_enable is called in main.c
> I was wondering if anyone out there might also be running on
> an STB810/JBS PNX8550 based system and have any ideas as to
> why I am crashing.
> I know that PNX8550 does not enable the R4K Clock source
> stuff as the chip is a bit 'special' and requires the two
> timers to be used instead of one.
> As far as I can see I think my interrupts are not being setup.
> Any help, ideas etc are appreciated.
> Daniel Laird