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-rw-r--r--src/mainboard/lenovo/t520/devicetree.cb3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mainboard/lenovo/t520/devicetree.cb b/src/mainboard/lenovo/t520/devicetree.cb
index c32e237095..d347e8246d 100644
--- a/src/mainboard/lenovo/t520/devicetree.cb
+++ b/src/mainboard/lenovo/t520/devicetree.cb
@@ -73,6 +73,9 @@ chip northbridge/intel/sandybridge
# Enable zero-based linear PCIe root port functions
register "pcie_port_coalesce" = "1"
+ register "c2_latency" = "101" # c2 not supported
+ register "p_cnt_throttling_supported" = "1"
+
device pci 16.0 on end # Management Engine Interface 1
device pci 16.1 off end
device pci 16.2 off end