[PATCH 0/4] arm/versatile: no-MMU support

Vladimir Murzin vladimir.murzin at arm.com
Wed Dec 7 01:23:04 PST 2016


Hi Greg,

On 07/12/16 06:08, Greg Ungerer wrote:
> Does the ARM Versatile machine have a maintainer?
> I have CC'ed this patch set to those names reported by get_maintainer.
> I had no feedback on the first posting of this series back in August.
> 
> The following patches support configuring and building the versatile
> machine with a no-MMU kernel.
> 
> There is only a few minor changes required. It was previously possible
> in older kernels to build for versatile with CONFIG_MMU disabled, but
> the change to devicetree lost that capability. These changes make it
> possible again.
> 
> One patch is a fix for address translation (broken in older kernels too),
> two are build problems when CONFIG_MMU is disabled, and the last is the
> actuall configuration changes needed.
> 
> The motivation for this is that the versatile machine is well supported
> in qemu. And this provides an excellent platform for development and
> testing no-MMU support on ARM in general. With these patches applied
> it is possible to build and run a kernel with MMU disabled on qemu.

I'm wondering if my "Allow NOMMU for MULTIPLATFORM" series [1] work for you?

[1] https://www.spinics.net/lists/arm-kernel/msg546823.html

Cheers
Vladimir

> 
> Signed-off-by: Greg Ungerer <gerg at uclinux.org>
> ---
>  arch/arm/Kconfig                       |   10 ++++++++++
>  arch/arm/Kconfig.debug                 |    3 ++-
>  arch/arm/include/asm/mach/map.h        |    1 +
>  arch/arm/mach-versatile/Kconfig        |    3 ++-
>  arch/arm/mach-versatile/Makefile.boot  |    3 +++
>  arch/arm/mach-versatile/versatile_dt.c |    4 ++++
>  6 files changed, 22 insertions(+), 2 deletions(-)
> 
> 
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