[PATCH rtems v3 3/7] cpu/armv7m: Add table based init for ARMV7M_MPU

[Gedare Bloom]

On Thu, Nov 19, 2020 at 1:13 PM Gedare Bloom <gedare at rtems.org> wrote:
>
> Hi Sebastian, Christian:
>
> I saw the req
Oops, gmail shortcuts cut me off.

I saw the request to change the names, but I think the _ARMV7M_MPU_yyy
is correct, because MPU is the capitalized first "word" of the
subgroup there. It is consistent with the naming of other
_ARMV7M_Xxx_yyy routines.

>
> On Thu, Nov 19, 2020 at 3:17 AM Christian Mauderer
> <christian.mauderer at embedded-brains.de> wrote:
> >
> > Am 19.11.20 um 10:22 schrieb Christian Mauderer:
> > > Am 19.11.20 um 10:15 schrieb Sebastian Huber:
> > >>
> > >> On 19/11/2020 09:51, Christian Mauderer wrote:
> > >>> +  mpu = _ARMV7M_MPU;
> > >>> +  scb = _ARMV7M_SCB;
> > >>> +
> > >>> +  scb->shcsr &= ~ARMV7M_SCB_SHCSR_MEMFAULTENA;
> > >> I think it is not necessary to touch the shcsr. Disabling the MPU
> > >> should be enough.
> > >
> > > OK. I'll try it on the imxrt.
> >
> > Seems to be no problem to remove that line. I'll do that before pushing.
> >
> > >
> > >>> +  mpu->ctrl = 0;
> > >>> +
> > >>> +  _ARM_Data_synchronization_barrier();
> > >>> +  _ARM_Instruction_synchronization_barrier();
> > >>
> > >
> >
> > --
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