This modem router has two cpu's. The RT3052 for ethernet and wifi and a TC3162LE for adsl stuff.
I've done some reading and understand how to add the new board to ramips linux.
The TC3162LE runs it's own firmware, has its own ram, flash and uart. So im hoping that it will work with openwrt running on the RT3052.
I dont know how it's conected to the rest of the router but im going to find out. If anyone has any information about the TC3162LE please let me know.