PMU setting in bcm2387 dtsi file

[Vince Weaver]

On Tue, 15 Aug 2017, Stefan Wahren wrote:

> > I did ask at the bare-metal forum, and they pointed me to this document:
> > https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2836/QA7_rev3.4.pdf
> 
> Okay, i take a quick look but i can't see the interrupt type (edge 
> rising/falling, level high/low). It would be nice to have a confirmation 
> about this.

I can ask again, although some of the people on the bare-metal forum are 
grumpy that I'm asking supposedly Linux-related questions there.

> > $ cat /proc/interrupts 
> >            CPU0       CPU1       CPU2       CPU3       
> > ....
> >   9:        562          4       1616         10  bcm2836-pmu   9 Edge      arm-pmu

> Just a question: did you only test 64 bit mode or 32 bit, too?

I only tested 64-bit.  I could try a 32-bit upstream kernel too if you 
want but it might be a few days until I get a chance to do that.

On a recent pi-foundation 32-bit kernel things work too:

$ cat /proc/interrupts

           CPU0       CPU1       CPU2       CPU3       
...
 21:      19567      26095      36936      23190  bcm2836-pmu   9 Edge    


Vince