[coreboot] Intel Atom X5 or X7 support

[josef]

hello,i have been reading your documents for few hours, i know your code can create bios for mainboards, it is great.but i have a question, i like to make a custom board with Intel Atom SOC (eg. Intel Atom x7-Z8700). is your codes support creating BIOS for such SOC's too ? i did see you had some support on one UP board with n3000 series SOC. 
i have been looking for such a thing for more than a year without any luck. Intel wants millions of dollars  that i don't have! among other problems. 
so, before i dive into your system, i like to know if it is workable.thank you, best regards, Josef.