I want to adjust the bus/clock multiplier on a Trinity processor with Coreboot, has anyone had any experience with this or overclocking processors in general with Coreboot?
Where would I start looking in the source to make these modifications? I'm sure I am not the first to want to do this with Coreboot :)
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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David Hubbard -
Prop 395