[Haskell-cafe] GHC LLVM ARM Cross Compilation

I saw the Google Summer of Code project for using LLVM to cross compile for other architectures such as ARM. Professionally I write embedded Linux code that targets ARM processors such as the TI DaVinci DM355 and am very intrigued by the potential use of Haskell for future projects. If I was interested in attempting to add support for LLVM ARM cross-compilation, are there any thoughts on what parts would have to be modified to do so? Or has work already been conducted in this area? ~Nathan