Thanx for your great software. I love using it.
Until 21.02 RC3 cpufreq on my espressobin worked. Since Release of 21.02 frequency scaling it is not available any more. This heats up my espressobin too much. Unfortunately my espressobin is exposed to natural warmth on the place where it is installed.
I think that is related to commit f407b2f43c27a7b35c4f96d3efcee2cc440f8efe ("mvebu: armada-37xx: add patch to forbid cpufreq for 1.2 GHz")
This commit was a quick shot, to not block the release, but the bug should be fixed.