We are not officially supporting ARM at the moment, though I would love to have the time to validate Numba on the TK1. As an experiment some weeks back, I've built LLVM, llvmlite, and Numba from scratch on the Raspberry Pi 2 (armv7, same as TK1) and most of the unit tests do pass. Unfortunately, ARM does not allow misaligned loads, so arrays that use structured dtypes with unaligned fields will cause the Python process to segfault.
We have never tried using Numba's CUDA target on an ARM host, although I don't know of any reason why it would not work.