erebion/coreboot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

baytrail: DPTF: Add PPCC object for power limit information

Browse source 
This object is used by DPTF for power limiting in the CPU.
It is nominally set to the SdpProfile 2 values.

BUG=chrome-os-partner:17279
BRANCH=baytrail
TEST=build and boot on rambi, start DPTF application

Change-Id: I55f6a32cd61302dda6103745b22cb7233ad78b0b
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/184158
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Duncan Laurie 2014-01-28 14:03:43 -08:00 • committed by chrome-internal-fetch
commit e9c002c393
1 changed files with 21 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

21
src/soc/intel/baytrail/acpi/dptf/cpu.asl
View file

@ -123,4 +123,25 @@ Device (TCPU)
Return (0)
}
}
Name (PPCC, Package ()
{
0x2, // Revision
Package () { // Power Limit 1
0, // PowerLimitIndex, 0 for Power Limit 1
1600, // PowerLimitMinimum
6200, // PowerLimitMaximum
1000, // TimeWindowMinimum
1000, // TimeWindowMaximum
200 // StepSize
},
Package () { // Power Limit 2
1, // PowerLimitIndex, 1 for Power Limit 2
8000, // PowerLimitMinimum
8000, // PowerLimitMaximum
1000, // TimeWindowMinimum
1000, // TimeWindowMaximum
1000 // StepSize
}
})
}