sndwvs, you have done some nice work for a number of soc, orange pi plus 2e h3, Helios64 RK3399, ROCKPro64 RK3399
any of your instructions might apply to the following RK3399? as in
slarm64 - unofficial aarch64?
Orange Pi 4 Single Board Computer 6-Core ARM 64 Bit Motherboard Starter
with Dual 4GB LPDDR4 + 16GB EMMC Flash
thank you