I meant l1-related code, some parts - for example http://cgit.osmocom.org/cgit/osmocom-bb/tree/src/target/firmware/board/mt62x... or http://cgit.osmocom.org/cgit/osmocom-bb/tree/src/target/firmware/board/media...
This is only used for the loader code, so you can get a bootloader into the phone without JTAG and using osmocon. In other words, UART support only.
The kernel for MTK does not seem to have any signs of gsm layer 1 code.
All known info is here: http://bb.osmocom.org/trac/wiki/MT6235_DSP Once more is known, layer1 could be implemented.
Regards,
Wolfram