Hi dee Ho peeps. On 9/30/21 11:10, Tony Lindgren wrote: > * Robert Nelson <robertcnelson@xxxxxxxxx> [210924 18:41]: >> On Wed, Sep 22, 2021 at 4:28 AM Vaittinen, Matti >> <Matti.Vaittinen@xxxxxxxxxxxxxxxxx> wrote: >>> Maybe a stupid question - how to find out the exact revision? >> >> Run: >> >> hexdump -e '8/1 "%c"' /sys/bus/i2c/devices/0-0050/eeprom -n 28 | cut -b 5-28 >> >> Then lookup: >> >> https://github.com/beagleboard/image-builder/blob/master/readme.md Thanks! What I read out was: A335BNLT00C03614BBBK9018 which I assume means the Rev C. (Two of the boards have element 14 printed on PCB, one has beagleboard.) > > So do I need some kernel module for this with the mainline kernel > loaded? I don't have eeprom listed under 0-0050. > > I also see eeprom only for am335x-pocketbeagle.dts and > am57xx-beagle-x15-common.dtsi so maybe it should be justd added? I did have the eeprom driver load and eeprom accessible - and I don't think I have any DTS modifications. Perhaps you just don't have the correct eeprom driver enabled at config? Best Regards -- Matti
