Re: DS3231 v. MAX77620

On 7 Nov 2021, at 13:42, Bernd Walter <ticso@cicely7.cicely.de> wrote:
> 
> However, I also couldn't get the same DS3231 module running on my Pi4.

The GPIO drivers for BCM2711 are subtly different from the others, and thus
don't quite work. I have some config.txt hacks to turn on I2C, but ideally we
should fix the drivers.

I keep on failing to get time to do this, and getting my head around FDT is
an obstacle.

Some looking around has shown a couple of problems:
1) Register differences in BCM2711 - should be easy to fix with a bit of time
2) We don't use the in-tree FDT files on the RPi's. Needs fixing if we are to
   be able to tweek them without manual recompilation.

M
-- 
Mark R V Murray