[coreboot-gerrit] Change in coreboot[master]: mainboard/prodrive/hermes: Enable EIST in DeviceTree

[Patrick Rudolph (Code Review)]

Patrick Rudolph has submitted this change. ( https://review.coreboot.org/c/coreboot/+/42777 )

Change subject: mainboard/prodrive/hermes: Enable EIST in DeviceTree
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mainboard/prodrive/hermes: Enable EIST in DeviceTree

Enable EIST option in the devicetree in order to make Windows aware of
using Intel CPU Turbo Technology.

Change-Id: Ied3d7e934fcab2d5d491573245d68d392df5ba34
Signed-off-by: Christian Walter 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42777
Tested-by: build bot (Jenkins) 
Reviewed-by: Patrick Rudolph 
---
M src/mainboard/prodrive/hermes/variants/baseboard/overridetree.cb
1 file changed, 3 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Patrick Rudolph: Looks good to me, approved

diff --git a/src/mainboard/prodrive/hermes/variants/baseboard/overridetree.cb b/src/mainboard/prodrive/hermes/variants/baseboard/overridetree.cb
index 3388239..93bae80 100644
--- a/src/mainboard/prodrive/hermes/variants/baseboard/overridetree.cb
+++ b/src/mainboard/prodrive/hermes/variants/baseboard/overridetree.cb
@@ -131,6 +131,9 @@
    # Disable S0ix
    register "s0ix_enable" = "0"

+	# Enable Turbo
+	register "eist_enable" = "1"
+
    register "common_soc_config" = "{
    	.gspi[0] = {
    		.speed_mhz = 1,