We have some of the initial files done for a port of the SiFive HiFive Unleashed board to KiCAD. The repo is here:
Right now it is named “ki5” (ala KiCAD + RISC-V) and we’ll rename the other files so it is clear which are the original upstream files and which are the KiCAD ported files. If someone from SiFive has any input on how they’d like to see this handled, it would be welcome.
It doesn’t have a license yet as we’ll likely use the same license as the upstream board, but I’m not 100% sure what that is, other than “permissive”. Probably BSD.