[PATCH v2 0/9] ARM: multi-platform kconfig cleanup and mach-virt removal

Arnd Bergmann arnd at arndb.de
Wed Feb 12 13:07:56 EST 2014


On Wednesday 12 February 2014 17:16:21 Will Deacon wrote:
> On Wed, Feb 12, 2014 at 05:11:45PM +0000, Marc Zyngier wrote:
> > On 12/02/14 16:53, Arnd Bergmann wrote:
> > > 
> > > On the topic of V6, we don't support CPU_V6T2 at all, though I assume that
> > > there is an ARM1156 core tile for integrator and realview, and we support
> > > running the V6/V6K parts with MMU turned off. Would all revisions of ARM1156
> > > work with CPU_V6K and !MMU?
> > 
> > CPU_V6 and !MMU should work. V6K might, but that requires close
> > inspection (WFE, SEV shouldn't be used in UP context)...
> 
> Well I can boot Debian on my 1136 r0p1 (no v6k) using a v6/v7 kernel, so the
> lack of MMU shouldn't change that.

I was more worried about ARM1156 not being a strict superset of V6K, i.e.
stuff other than the MMU missing from it that the kernel would rely on.

	Arnd



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