diff --git a/src/mainboard/system76/lemp10/devicetree.cb b/src/mainboard/system76/lemp10/devicetree.cb
index 9de84c2b7d..97d7bc1d84 100644
--- a/src/mainboard/system76/lemp10/devicetree.cb
+++ b/src/mainboard/system76/lemp10/devicetree.cb
@@ -103,6 +103,16 @@ chip soc/intel/tigerlake
 	#TODO: Hybrid storage mode
 	register "HybridStorageMode" = "0"
 
+	# Default IOM Port Config
+	register "IomTypeCPortPadCfg[0]" = "0x09000000"
+	register "IomTypeCPortPadCfg[1]" = "0x09000000"
+	register "IomTypeCPortPadCfg[2]" = "0x09000000"
+	register "IomTypeCPortPadCfg[3]" = "0x09000000"
+	register "IomTypeCPortPadCfg[4]" = "0x09000000"
+	register "IomTypeCPortPadCfg[5]" = "0x09000000"
+	register "IomTypeCPortPadCfg[6]" = "0x09000000"
+	register "IomTypeCPortPadCfg[7]" = "0x09000000"
+
 	# Read LPM_EN, make sure to invert the bits
 	# sudo devmem2 0xfe001c78
 	# 0x9