diff --git a/src/mainboard/google/volteer/variants/eldrid/overridetree.cb b/src/mainboard/google/volteer/variants/eldrid/overridetree.cb
index 51bc991..129d704 100644
--- a/src/mainboard/google/volteer/variants/eldrid/overridetree.cb
+++ b/src/mainboard/google/volteer/variants/eldrid/overridetree.cb
@@ -168,6 +168,13 @@
 				device i2c 15 on end
 			end
 		end
+		device ref pch_espi on
+			chip ec/google/chromeec
+				use conn0 as mux_conn[0]
+				use conn1 as mux_conn[1]
+				device pnp 0c09.0 on end
+			end
+		end
 		device ref hda on
 			chip drivers/generic/max98357a
 				register "hid" = ""MX98357A""
@@ -185,14 +192,14 @@
 						register "usb2_port_number" = "9"
 						register "usb3_port_number" = "1"
 						# SBU & HSL follow CC
-						device generic 0 on end
+						device generic 0 alias conn0 on end
 					end
 					chip drivers/intel/pmc_mux/conn
 						register "usb2_port_number" = "4"
 						register "usb3_port_number" = "2"
 						# SBU is fixed, HSL follows CC
 						register "sbu_orientation" = "TYPEC_ORIENTATION_NORMAL"
-						device generic 1 on end
+						device generic 1 alias conn1 on end
 					end
 				end
 			end