PMU setting in bcm2387 dtsi file
vincent.weaver at maine.edu
Wed Aug 16 08:23:23 PDT 2017
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
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