From DD-WRT Wiki

Jump to: navigation, search

The WRTU54G-TM is an unsupported router. It has an incompatible wifi chipset. The firmware can be modified and reflashed easily though. It has a U-Boot bootloader and 1 serial port. It also has the ability to have a USB port hacked in if you disconnect the SIM card reader.

Additional info can be found here:

WRTU54G-TM Hacking

Flash WRT54G-TM