[coreboot-gerrit] Change in coreboot[master]: soc/intel/{skl,cnl,dnv}: disable PM ACPI timer if chosen

[Michael Niewöhner (Code Review)]

Attention is currently required from: Arthur Heymans,  Felix Singer, Furquan Shaikh, Mariusz Szafrański, Jonathan Zhang, Paul Menzel, Johnny Li, Subrata Banik, Patrick Rudolph, Lance Zhao, Marc Jones, Nico Huber, Anjaneya "Reddy" Chagam, Johnny Lin, Tim Wawrzynczak, Christian Walter, Suresh Bellampalli, Vanessa Eusebio, Michal Motyl, Tim Chu.
Michael Niewöhner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/57932 )

Change subject: soc/intel/{skl,cnl,dnv}: disable PM ACPI timer if chosen
......................................................................

Patch Set 38:

(2 comments)

File src/soc/intel/xeon_sp/finalize.c:

https://review.coreboot.org/c/coreboot/+/57932/comment/ad6b495f_8fab77be 
PS37, Line 49: BS_ON_ENTRY
> @Arthur, Marc, Johnny: can someone test this, please? Unset `USE_PM_ACPI_TIMER` and check if the boa […]

moved Xeon-SP to CB:58389

File src/soc/intel/xeon_sp/pmc.c:

https://review.coreboot.org/c/coreboot/+/57932/comment/e77f6e71_21065c2c 
PS33, Line 60: Disabling ACPI PM timer also switches off TCO.
> for later reference: I checked Supermicro X11SPM-F image X11SPM1.220 (BIOS rev. 3.4). […]

moved Xeon-SP to CB:58389