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| author | Gaggery Tsai <gaggery.tsai@intel.com> | 2019-04-25 12:06:23 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-04-29 12:19:18 +0000 |
| commit | da79f5c91d94883589a3530f4cc30231a9826bf0 (patch) | |
| tree | ec65c2436cee8b58e940e0f0ca279133159e65ea /src | |
| parent | f81c589ad25580b82a0c61031168385e8057293d (diff) | |
| download | coreboot-da79f5c91d94883589a3530f4cc30231a9826bf0.tar.xz | |
mb/google/sarien: Add psys_pmax setting to 136W
This patch adds the setting of psys_pmax to 136W. According to the
design, Rpsys is 11.8Kohm. Here is the equation to come out the
Psys_pmax value: Psys_pmax * 1.493uA/W * 11.8Kohm / 2 = 1.2V
Hence, Psys_pmax is 136W.
BUG=b:124792558
BRANCH=None
TEST=emerge-sarien coreboot chromeos-bootimage & Ensure the value is
passed to FSP by enabling FSP log & Boot into the OS
Change-Id: Id3f6be5f0c2346a7763195a992c0ae45faede056
Signed-off-by: Gaggery Tsai <gaggery.tsai@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32457
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/sarien/variants/sarien/devicetree.cb | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mainboard/google/sarien/variants/sarien/devicetree.cb b/src/mainboard/google/sarien/variants/sarien/devicetree.cb index 96146baf1e..7dd9f154ef 100644 --- a/src/mainboard/google/sarien/variants/sarien/devicetree.cb +++ b/src/mainboard/google/sarien/variants/sarien/devicetree.cb @@ -43,6 +43,7 @@ chip soc/intel/cannonlake register "SlowSlewRateForFivr" = "2" register "tdp_pl1_override" = "15" register "tdp_pl2_override" = "51" + register "psys_pmax" = "136" register "Device4Enable" = "1" # Enable eDP device register "DdiPortEdp" = "1" |