Nanopi NEO2 CPU frequency issue

Hi! I've recently bought a nanopi NEO2 which features an Allwinner H5. On FriendlyArm website (and on Allwinner's too) it is stated that the H5 is clocked 1.5Ghz. I need to perform some heavy job and and noticed that the cpu frequency hits, at full power, only 1Ghz. I checked using cpufreq-info and I got: driver: cpufreq-dt CPUs which run at the same hardware frequency: 0 1 2 3 CPUs which need to have their frequency coordinated by software: 0 1 2 3 maximum transition latency: 244 us. hard

@tkaiser, @Igor - I now have a working solution for this, and I'm interested in your thoughts regarding it. If this makes sense, I'd like to add it to the Armbian mainline. To explain the problem: Many H5 boards have different hardware revisions where some have a 1.1v/1.3v regulator present (e.g., SY8113B, MP2143DJ), and others may not (or it may not be accessible because of a missing Q5 MOSFET ). It would be nice for users to be able to enable this regulator if they can, and enab