FOSS Flows For FPGA — F4PGA documentation
F4PGA currently (2025) targets Xilinx’s 7-Series, QuickLogic’s EOS-S3, and Lattice’ iCE40 and ECP5 devices. Think of it as the GCC of FPGAs.
F4PGA is a Workgroup under the CHIPS Alliance, part of the Linux foundatio. It is an Open Source solution for Hardware Description Language (HDL) to Bitstream FPGA synthesis.