Lijian Zhao has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/30446
Change subject: mb/google/sarien: Set CPU boot up mode to turbo ......................................................................
mb/google/sarien: Set CPU boot up mode to turbo
Set CPU to be running at non-turbo maxium speed first and then switch to turbo maxium speed to accelerate boot performance.
BUG=N/A TEST=Boot up with sarien platform, check with cbmem -t, boot time had been 110ms less.
Signed-off-by: Lijian Zhao lijian.zhao@intel.com Change-Id: I43bdb7ef82a5e6e147b3b506756c118dacdb0321 --- M src/mainboard/google/sarien/variants/arcada/devicetree.cb M src/mainboard/google/sarien/variants/sarien/devicetree.cb 2 files changed, 2 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/46/30446/1
diff --git a/src/mainboard/google/sarien/variants/arcada/devicetree.cb b/src/mainboard/google/sarien/variants/arcada/devicetree.cb index 52840de..ce83d10 100644 --- a/src/mainboard/google/sarien/variants/arcada/devicetree.cb +++ b/src/mainboard/google/sarien/variants/arcada/devicetree.cb @@ -24,6 +24,7 @@ register "SkipExtGfxScan" = "1" register "VmxEnable" = "1"
+ register "bootfreq" = "2" register "speed_shift_enable" = "1" register "s0ix_enable" = "1" register "dptf_enable" = "1" diff --git a/src/mainboard/google/sarien/variants/sarien/devicetree.cb b/src/mainboard/google/sarien/variants/sarien/devicetree.cb index 47abadc..98566f1 100644 --- a/src/mainboard/google/sarien/variants/sarien/devicetree.cb +++ b/src/mainboard/google/sarien/variants/sarien/devicetree.cb @@ -28,6 +28,7 @@ register "SkipExtGfxScan" = "1" register "VmxEnable" = "1"
+ register "bootfreq" = "2" register "speed_shift_enable" = "1" register "s0ix_enable" = "1" register "dptf_enable" = "1"