was missing the dtb for that board...
curl -sSL https://github.com/wulfy23/rpi4/raw/master/utilities/bcm2711-rpi-cm4.dtb > /boot/bcm2711-rpi-cm4.dtb
reboot
was missing the dtb for that board...
curl -sSL https://github.com/wulfy23/rpi4/raw/master/utilities/bcm2711-rpi-cm4.dtb > /boot/bcm2711-rpi-cm4.dtb
reboot