[coreboot] Overclocking AMD Trinity processors

[David Hubbard]

The AGESA source sets up the PLLs for the various function blocks on the
chip.

I just want to try to warn you not to overclock your CPU. Or, use the
vendor BIOS to do it. Overclocking relies on knowing the motherboard
layout, timing, and thermal characteristics to a degree of detail that just
isn't possible in coreboot. (And you will also want to be careful of power
stability, PLL quirks, and motherboard functions that will be bricked if
you drive them wrong.)

In other words, there's a reason coreboot doesn't support overclocking. Not
to say a vendor couldn't add support for it.

David
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