[RFC 3/7] ARM: vf610m4: add new machine and SoC for Vybrid on Cortex-M4

[Arnd Bergmann]

On Sunday 12 October 2014 20:13:57 Stefan Agner wrote:
> This patch adds a new machine ARCH_MXCM4 which requires !MMU and
> !MULTIARCH and is meant as machine for the hetregenous multi-core
> Vybrid/i.MX SoC's to run Linux on the Cortex-M4.
> 
> The first SoC supported is Vybrid on Cortex-M4 (SOC_VF610M4).
> 
> Signed-off-by: Stefan Agner <stefan at agner.ch>
> ---
> Not sure whether we really need a new MACH, but since MACH_MXC needs
> MULTIARCH, which in turn conflicts with !MMU, I guess there is no
> easier way to do it... And then, this also needs a new SOC.

I've carried an experimental patch to enable !MMU in combination with
MULTIPLATFORM for a while, it's probably time to do this for real now,
especially since we now have two !MMU platforms that can be built
together. Independent of the question of whether such a combined kernel
could run on real hardware or anybody would want to run such a kernel
if it were possible, I think it's very useful to be able to build
allmodconfig with MMU disabled and get all drivers for the available
platforms for build testing.

	Arnd