[PATCH v3 0/8] ARM: NOMMU: MPU updates

Russell King - ARM Linux linux at armlinux.org.uk
Sat Oct 14 07:37:21 PDT 2017


On Fri, Oct 13, 2017 at 10:40:39AM +0100, Vladimir Murzin wrote:
> On 13/10/17 10:24, Russell King - ARM Linux wrote:
> > Sorry, but I have no working MPS3 platform since it killed its uSD card
> > with all the FPGA bitstreams on.  I'm waiting (since end of September)
> > for a replacement from ARM Ltd but there hasn't yet been any progress.
> > 
> > Sure, I can replace the uSD card myself, but the problem is the contents
> > of the card.
> 
> Thanks for prompt reply!
> 
> I should say that board won't help you with testing this series since it
> implements different MPU model (I have patches for that too but they are
> on top of this series).

It assists as far as making sure the changes don't cause a
regression for the platform.

> I've been working closely with Alex and András (since they needed this for
> their Cortex-M7 platform) to make sure it works as expected. It was also
> tested with R-class FastModels.
> 
> I intentionally kept CONFIG_ARM_MPU disabled by default for M-class
> (PATCH 6/8), so it won't interfere with existing bootloaders.

It looks like patch 6 will allow me to select ARM_MPU for the MPS3
config (by way of CPU_V7M being enabled).  As I'm unable to test
what effect that has here, and I don't know when I'll be able to do
so, please check if not already done so.

> I'd be glad if you can review the series and give it a chance to sit in
> linux-next (I can provide a branch on top of yours for-next).

Please never provide a branch on top of my for-next, it's an "unstable"
commit in that it's regenerated from several sub-branches (fixes, misc,
devel-stable, and whatever other work I want to include in linux-next.)

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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