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google/eve: Set throttle offset to 10 degrees 

Set the thermal throttle (prochot) activation to be 10 degrees
below TJmax so PROCHOT# kicks in at 90C instead of 100C.

BUG=chrome-os-partner:58666
TEST=boot on eve, check msr value before and after resume:
> iotools rdmsr 1 0x1a2
0x000000000a6400e6
> echo mem > /sys/power/state
> iotools rdmsr 1 0x1a2
0x000000000a6400e6

Change-Id: I3ab3a050a1e27c18a940bd7519eabaf015ef93eb
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/17901
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Duncan Laurie 2016-12-16 08:01:09 -08:00
parent 698b3876cc
commit 690831d148
1 changed files with 1 additions and 0 deletions
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1
src/mainboard/google/eve/devicetree.cb
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@ -187,6 +187,7 @@ chip soc/intel/skylake
register "speed_shift_enable" = "1" register "speed_shift_enable" = "1"
register "dptf_enable" = "1" register "dptf_enable" = "1"
register "tdp_pl2_override" = "7" register "tdp_pl2_override" = "7"
register "tcc_offset" = "10"
device cpu_cluster 0 on device cpu_cluster 0 on
device lapic 0 on end device lapic 0 on end