OpenHD is based on buildroot and I suspect buildroot mainline doesn't have support for CM0 so you'll need to add this yourself in the OpenHD build
1) Use latest Raspberry Pi firmware
2) Use latest downstream rpi-6.12 firmware
3) Add the CM0 device-tree
For reference, here's the commit where we added support for CM0 in our buildroot rpiboot mass-storage-gadget
https://github.com/raspberrypi/buildroo ... 9b2d109230
Add broadcom/bcm2710-rpi-cm0 to BR2_LINUX_KERNEL_INTREE_DTS_NAME and include bcm2710-rpi-cm0.dtb.
1) Use latest Raspberry Pi firmware
2) Use latest downstream rpi-6.12 firmware
3) Add the CM0 device-tree
For reference, here's the commit where we added support for CM0 in our buildroot rpiboot mass-storage-gadget
https://github.com/raspberrypi/buildroo ... 9b2d109230
Add broadcom/bcm2710-rpi-cm0 to BR2_LINUX_KERNEL_INTREE_DTS_NAME and include bcm2710-rpi-cm0.dtb.
Statistics: Posted by timg236 — Thu Dec 18, 2025 4:15 pm