Hi can LinuxBios Take advantage of additional ROM space on addon cards?,

i.e i have a addon RTL1839B card with space of a rom, i also have a rom pulled from a broken motherboard that fits,

would it be possible to either flash with a backup emergancy rom or put LinuxBios on it and it can be part of normal bios startup options or in combination with the main flash chip on motherboard be used completely by LinuxBIOS and only the payloads put on the extra ROM

Thanks Graeme