Documentation for Lattice components library?

[mc]

I've been getting a little bit time to try and learn VHDL with my Lattice MachXO2 Pico board, however I'm struggling to find the right documentation.

For example, I'd been trying to configure the onboard oscillator so I could get a suitable clk signal. Despite going through all the obvious parts of the Lattice site, I eventually found out what I needed via a google search, and that there is a lattice components library. Now I know it exists, I've still not found any official documentation about said library.

I suspect it's a case of me not seeing the wood for the trees, so can somebody please point me in the right direction?