Thank you a lot for the feedback! I am running kernel 5.5.17 without patches:
https://packages.debian.org/sid/linux-image-arm64
I will try with a patched kernel (5.4-stable and 5.7-rc2 from Armbian) and do the proposed lspci call before trying further steps.
@Luke @tllim My impression is that the provided schematics are outdated as the changes made in the revision "v2.1 2018-07-02" are not covered. I would appreciate it if you could provide us with updated schematics.
https://packages.debian.org/sid/linux-image-arm64
I will try with a patched kernel (5.4-stable and 5.7-rc2 from Armbian) and do the proposed lspci call before trying further steps.
@Luke @tllim My impression is that the provided schematics are outdated as the changes made in the revision "v2.1 2018-07-02" are not covered. I would appreciate it if you could provide us with updated schematics.