ds3231 rtc i2c module on bpi-m5

[glambert]

Hello,

I am trying to connect a ds3231 module to get time during boot (dns does'nt like 1970) and without internet connexion. I load a recent build UBUNTU 26.2.1 on the M5 but unfortunatly after 2 days of research with chatgpt , I ask to knowledge experience people if they know if it's possible and which kind of dts can make this module up and running. I did'nt identify a dtbo on the distribution , a made a lot of investigation , pin 3 and 5 og the 40pins connector is connect to the cpu with pullup resistor , i try a lot dts conf and nothing gave result. If some one did this kind of connexion thanks in advance.

Gérard