However if you are using any of the bridges they may need to be re-initialized. If the FPGA has been previously programmed, whether it be through Linux or from UBoot, you can re-program it within linux by issuing the 'cat' command from above. rbf will be in the main project directory Click on SOF Data in the Input files to convert table.Change the Programming File Type drop to: Raw Binary File (.rbf).Go to File->Convert Programming Files.The FPGA programmed LED should now be off. rbf file to the FPGA when booted into linux: NOTE: The FPGA output file needs to be in a.