The VIA CPU support code has been a bit neglected. With the upcoming support for more C7 based systems, I changed the code to have a seperate model_c3 and model_c7, as we have with all other cpu types.
model_c3 was simplified to catch all c3 cpus, not only the hand maintained.
model_c7 supports correct frequency stepping for many C7 cpus.
Best wishes Stefan