So far no luck. We do have a redundant patch adding the nodes, but that isn't the culprit. The driver complains it doesn't have the host-drv pin defined, but it's shared with the USB2 (same situation between Renegade and Rock64)
EDIT: A PHY driver was added back in the dark days before USB3 support by the kernel. It is only used by the Rock64 and Renegade, (and apparently also the RK3328 Station M-whatever). I've removed the entries and USB3 is working again now that mainline supports it without said special case driver. I will open a PR tonight with the fixes.