Re: OMAP34xx

Grazvydas Ignotas
2012-02-04T21:09:01Z

On Sat, Feb 4, 2012 at 10:34 PM, Russell King - ARM Linux
<linux@arm.linux.org.uk> wrote:
> Another problem oopses the kernel at boot in the voltage domain code,
> which I suspect this has never been boot tested on OMAP34xx CPUs:
>
> omap_vc_init_channel: PMIC info requried to configure vc forvdd_core not populated.Hence cannot initialize vc
> Unable to handle kernel NULL pointer dereference at virtual address 00000000
> pgd = c0004000
> [00000000] *pgd=00000000
> Internal error: Oops: 5 [#1] PREEMPT
> Modules linked in:
> CPU: 0    Not tainted  (3.3.0-rc2+ #204)
> PC is at omap_vp_init+0x5c/0x15c
> LR is at omap_vp_init+0x58/0x15c

I've got hit by this too, and it also seems to be DT related, because
if you don't select CONFIG_USE_OF, you lose TWL4030_CORE, which
results in omap_vp errors and NULL dereference. TWL4030_CORE was made
to depend on IRQ_DOMAIN, and that is selected by USE_OF or ARM_GIC. I
guess everyone here builds with USE_OF, but maybe ARCH_OMAP3 should
select ARM_GIC?

--
Gražvydas
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