[coreboot-gerrit] Change in coreboot[master]: soc/intel/alderlake: Disable Energy Efficient Turbo for ADL

[Sridhar Siricilla (Code Review)]

Sridhar Siricilla has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/61678 )

Change subject: soc/intel/alderlake: Disable Energy Efficient Turbo for ADL
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soc/intel/alderlake: Disable Energy Efficient Turbo for ADL

The patch disables Energy Efficient Turbo to allow CPU to reach Max.
Turbo frequency.

TEST=Build and run CPU intensiv workloads.

Signed-off-by: Sridhar Siricilla 
Change-Id: Iaafbe4ed2f732a0872197f870a82887a09d3043d
---
M src/soc/intel/alderlake/fsp_params.c
1 file changed, 3 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/78/61678/1

diff --git a/src/soc/intel/alderlake/fsp_params.c b/src/soc/intel/alderlake/fsp_params.c
index 8aa20a8..90bccb3 100644
--- a/src/soc/intel/alderlake/fsp_params.c
+++ b/src/soc/intel/alderlake/fsp_params.c
@@ -654,8 +654,9 @@
    s_cfg->Hwp = 1;
    s_cfg->Cx = 1;
    s_cfg->PsOnEnable = 1;
-	/* Enable the energy efficient turbo mode */
-	s_cfg->EnergyEfficientTurbo = 1;
+
+	/* Disable the energy efficient turbo mode */
+	s_cfg->EnergyEfficientTurbo = 0;
    s_cfg->PkgCStateLimit = LIMIT_AUTO;

/* VccIn Aux Imon IccMax. Values are in 1/4 Amp increments and range is 0-512. */