BBAI64 - Included DT in images seems to be faulty / old - Githubissues

RobertCNelson / omap-image-builder

omap image builder

http://elinux.org/BeagleBoardUbuntu

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BBAI64 - Included DT in images seems to be faulty / old #214

Open orgua opened 7 months ago

orgua commented 7 months ago

I hope this is the right place to report this issue

Observation

Toggling GPIO shows no action

gpioset 1 20=1
gpioset 1 20=0

sudo echo 320 >  /sys/class/gpio/export
sudo echo out > /sys/class/gpio/gpio320/direction
sudo echo 1 > /sys/class/gpio/gpio320/value

Problem was also reported some time ago here and a manual fix is indicated in the bb-forum.

Tested Images

images from here, current versions (as of 2023-12-02)
debian 11.8 with 5.10ti and ubuntu 22.04 with 5.10ti -> GPIO doesn't work out-of-the-box, but is fixable, see below
[as a sidenote] bookworm with kernel 6.1 and mainline (6.6 / 6.7) -> GPIO doesn't work and the quick-fix also did not work as the devicetree in the according branches is missing the gpio-entries

manual fix

Boot image with kernel 5.10ti

git clone https://github.com/beagleboard/BeagleBoard-DeviceTrees.git
cd BeagleBoard*
git checkout v5.10.x-ti-arm64 
# ... or stay on default v5.10.x-ti-unified, both work
make all_arm64
sudo make install_arm64

sudo reboot