[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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