What is this?
Raspberry Pi tools for working with iCE40 FPGAs
It's just experimental and working with some custom hardware. If it works well, parameters to support other boards will be easy to add.
Build
make
Configure FPGAs
sudo ./rpi_ice40_config -1r rgb.bin # reset both and configure FPGA1
sudo ./rpi_ice40_config -2 rgb.bin # now configure FPGA2