Here are some ofthe cool explanation about Flashrom which is taken from Phoronix site:
This utility supports nearly every x86 motherboard after having worked on support for over 150 flash chip families (and many various for each family), 75 different chipsets, workarounds for non-standard motherboards, and there is no need for CD-ROM or floppy disk.
Previously Linux users have had to create an MS-DOS or FreeDOS boot disk and then run a proprietary DOS-based BIOS flashing program, but it is now becoming easy and universally supported to flash the BIOS from your desktop. Flashrom can also flash a BIOS perfectly fine over SSH or through other means as long as there is root access. Flashrom also supports cross-flashing and hot-flashing.