I haven't seen English text with detailed specifications of it before. It's confusing, since Lemote's website mentions it having AMD integrated GPU, kernel sources for it contain related blobs, while it's said that it will not need any nonfree software.
I'm a contributor to Parabola mips64el, supporting Loongson 2F (as used in 8.9 or 10.1 inch YeeLoongs). Porting there consists mostly of building packages (this takes days for a KDE update, days for a GCC update, shorter time for typical packages), fixing some problems (mostly not patched upstream, due to quality of patches or lack of time), and not having Java, Haskell, LibreOffice and WebKit-based browsers due to difficult changes or build needed (e.g. LibreOffice needs three days of building before it fails for many unrelated reasons, WebKit debug build uses more RAM than it can with the ABI used, running Midori fails in difficult to reproduce ways). I believe making a Trisquel port optimized for Loongson 2F or 3A machines would not be easier (Debian mipsel supports this machine, but big speed improvements are done by using a different ABI which needs patching some packages like WebKit).
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