Basically,
/dev/spi This would be your flash chip, enumerated using flashrom.
flashrom -r equivalent: dd if=/dev/spi of=dump.rom
flashrom -w eqivalent: dd if=coreboot.rom of=/dev/spi
Where SPI is the internal SPI chip on your motherboard. If (using flashrom as the backend) the linux kernel supports your flash chip, you could just use dd.
What does the community think of this idea?