diff --git a/src/mainboard/lenovo/s230u/devicetree.cb b/src/mainboard/lenovo/s230u/devicetree.cb
index b9b38dd..35135a9 100644
--- a/src/mainboard/lenovo/s230u/devicetree.cb
+++ b/src/mainboard/lenovo/s230u/devicetree.cb
@@ -56,6 +56,10 @@
 			register "superspeed_capable_ports" = "0x0000000f"
 			register "xhci_overcurrent_mapping" = "0x00000c03"
 			register "xhci_switchable_ports" = "0x0000000f"
+
+			register "spi_uvscc" = "0x2005"
+			register "spi_lvscc" = "0x2005"
+
 			device pci 14.0 on # USB 3.0 Controller
 				subsystemid 0x17aa 0x2205
 			end