Before I pass it on, is there any value in tearing it down and documenting it? It only cost £5 so I am happy to destroy it if it helps the cause. If so, let me know what you want and where to put it.
Contrary to the lantiq GRX350 based Type B (which is at least theoretically supportable, although it isn't right now, nor anytime soon), Type A is a Broadcom design, which isn't supported (at least xDSL modem and wireless), nor 'ever' will be.