8.5 requires changes all up and down the stack… From the r5 firmware in u-boot to all the 8.5 lib’s!
Over the weekend just started looking at this: Commits · v2021.01-ti-08.05.00.005-SDK-8.5 · BeagleBoard.org / u-boot · GitLab
Just watch these repo’s… BeagleBoard.org / repos-arm64 · GitLab
Right now the easiest thing to do, is grab the 8.5 SDK image and copy our device tree over in the boot folder…
Regards,