diff --git a/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb b/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb
index d31cafc83a..9a71e959c3 100644
--- a/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb
+++ b/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb
@@ -11,6 +11,25 @@ chip soc/intel/meteorlake
 	# EC memory map range is 0x900-0x9ff
 	register "gen3_dec" = "0x00fc0901"
 
+	register "usb2_ports[0]" = "USB2_PORT_EMPTY"	# Disable USB2.0 Port 0
+	register "usb2_ports[1]" = "USB2_PORT_EMPTY"	# Disable USB2.0 Port 1
+	register "usb2_ports[2]" = "USB2_PORT_EMPTY"	# Disable USB2.0 Port 2
+	register "usb2_ports[3]" = "USB2_PORT_EMPTY"	# Disable USB2.0 Port 3
+	register "usb2_ports[4]" = "USB2_PORT_EMPTY"	# Disable USB2.0 Port 4
+	register "usb2_ports[5]" = "USB2_PORT_EMPTY"	# Disable USB2.0 Port 5
+	register "usb2_ports[6]" = "USB2_PORT_EMPTY"	# Disable USB2.0 Port 6
+	register "usb2_ports[7]" = "USB2_PORT_EMPTY"	# Disable USB2.0 Port 7
+	register "usb2_ports[8]" = "USB2_PORT_EMPTY"	# Disable USB2.0 Port 8
+	register "usb2_ports[9]" = "USB2_PORT_EMPTY"	# Disable USB2.0 Port 9
+
+	register "usb3_ports[0]" = "USB3_PORT_EMPTY"	# Disable USB3.0 Port 0
+	register "usb3_ports[1]" = "USB3_PORT_EMPTY"	# Disable USB3.0 Port 1
+
+	register "tcss_ports[0]" = "TCSS_PORT_EMPTY"	# Disable USB-C Port 0
+	register "tcss_ports[1]" = "TCSS_PORT_EMPTY"	# Disable USB-C Port 1
+	register "tcss_ports[2]" = "TCSS_PORT_EMPTY"	# Disable USB-C Port 2
+	register "tcss_ports[3]" = "TCSS_PORT_EMPTY"	# Disable USB-C Port 3
+
 	# S0ix enable
 	register "s0ix_enable" = "1"