I found using the dtbs from the upstream firmware appears to work: http://github.com/raspberrypi/firmware/archive/1.20200902.tar.gz
I then have u-boot use the kernel package's dtbs for when it boots the kernel.
I found using the dtbs from the upstream firmware appears to work: http://github.com/raspberrypi/firmware/archive/1.20200902.tar.gz
I then have u-boot use the kernel package's dtbs for when it boots the kernel.