[PATCH 1/3] irqchip: gic/realview: support more RealView DCC variants

[marc.zyngier@arm.com (Marc Zyngier)]

On 18/02/16 14:40, Arnd Bergmann wrote:
> On Thursday 18 February 2016 14:19:48 Marc Zyngier wrote:
>> On 18/02/16 13:46, Linus Walleij wrote:
>>> In the add-on file for the GIC dealing with the RealView family
>>> we currently only handle the PB11MPCore, let's extend this to
>>> manage the RealView EB ARM11MPCore as well. The Revision B of the
>>> ARM11MPCore core tile is a bit special and needs special handling
>>> as it moves a system control register around at random.
>>
>> Ah, 11MPCore RevB. That thing. Tried to locate one in the magic
>> cupboard, and failed. Oh well...
> 
> What surprised me though is that it's enabled by default:
> 
> $ grep REVB arch/arm/configs/realview*
> arch/arm/configs/realview_defconfig:CONFIG_REALVIEW_EB_ARM11MP_REVB=y
> arch/arm/configs/realview-smp_defconfig:CONFIG_REALVIEW_EB_ARM11MP_REVB=y
> 
> With that option set, the defconfig kernel should not be able
> to boot on RevC machines. Do you have a RevC machine that works
> with the defconfig?

No, it looks like someone helped themselves to *all* of the EB-11MPs - I
have a bunch of empty baseboards, and no tile to slap on. I also have a
box of unsoldered 11MPs, but that a different story... ;-)

I guess I should plan for another dumpster diving session.

	M.
-- 
Jazz is not dead. It just smells funny...