When it comes to flash a coreboot or libreboot machine, the Zerocat Chipflasher is a very special tool:
...and you can solder your own device, it is a do-it-yourself project!
Please read the README and How To Use to get started; and see other Related Pages.
If you are in a hurry to apply coreboot on your machine, first check Supported Devices to see if it is supported. If not, you may consider to provide your machine as test-hardware, we would love to try it and will improve the chipflasher by the way.
Have fun with these sources! Everyone should flash a free BIOS at least once in his lifetime ;-) It is an exciting experience.
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