The board didn't had a flash memory to store the FPGA configuration. The TI processor had to be removed to free the pins that are used to attach a flash memory to the FPGA. A Winbond 25Q16 was installed to store the bitstream. To upload the bitstream to flash I've used the fpgaprog command line tool and the FT2232.

A piece of veroboard was glued near the edge connector to facilitate the access to the FPGA pins.