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-rw-r--r--src/mainboard/google/poppy/variants/nami/devicetree.cb4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mainboard/google/poppy/variants/nami/devicetree.cb b/src/mainboard/google/poppy/variants/nami/devicetree.cb
index 3835573720..d505099b94 100644
--- a/src/mainboard/google/poppy/variants/nami/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/nami/devicetree.cb
@@ -58,6 +58,10 @@ chip soc/intel/skylake
register "PmTimerDisabled" = "1"
register "VmxEnable" = "1"
+ # Intersil VR c-state issue workaround
+ # send VR mailbox command for IA/GT/SA rails
+ register "IslVrCmd" = "2"
+
register "pirqa_routing" = "PCH_IRQ11"
register "pirqb_routing" = "PCH_IRQ10"
register "pirqc_routing" = "PCH_IRQ11"