Change in coreboot[master]: soc/intel/skylake: vr_config: enable PSI3 and PSI4 by default

[Michael Niewöhner (Code Review)]

Michael Niewöhner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/39980 )

Change subject: soc/intel/skylake: vr_config: enable PSI3 and PSI4 by default
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Patch Set 4:

(1 comment)

https://review.coreboot.org/c/coreboot/+/39980/3//COMMIT_MSG 
Commit Message:

https://review.coreboot.org/c/coreboot/+/39980/3//COMMIT_MSG@23 
PS3, Line 23:   Tested successfully with PSI3/4 enabled.
> But does it have PSI3/PSI4 support?

I'm still trying to find out; the board has the MP2955 but there is no ds. MP2965 supports PS3 but no PS4. I assume MP2955 has PS3, too but no PS4 since PS4 needs to be acknowleged by the VR, it shouldn't hurt to be enabled (to be proven).

Maybe I should add that I tested with a CPU that does not support PS4 anyway (e3-1230v6), since it has no C9/C10 states