Some years ago I was investigating it as a possible product for Routie ( https://routie.io ) to sell. Then I had one at home, and I wanted to come back and conquer porting linux to a new platform.

This is a pretty unique platform. The interrupt controller is something that no open source driver exists for (unless you count the Linux 2.6 era hacky trash you find in GPL dumps).

The timer is also unique, it runs at 200Mhz so it has a 5 nanosecond tick rate, but again, no drivers exist. I suspect this might be because good timing is required for the fiber protocol ¯\_(ツ)_/¯

It's an adventure...