diff --git a/src/mainboard/google/reef/variants/pyro/devicetree.cb b/src/mainboard/google/reef/variants/pyro/devicetree.cb
index 43e4c3d..41086f0 100644
--- a/src/mainboard/google/reef/variants/pyro/devicetree.cb
+++ b/src/mainboard/google/reef/variants/pyro/devicetree.cb
@@ -105,6 +105,22 @@
 	# Minimum SLP S3 assertion width 28ms.
 	register "slp_s3_assertion_width_usecs" = "28000"
 
+	# Override USB2 PER PORT register (PORT 0)
+	register "usb2eye[0]" = "{
+		.Usb20PerPortPeTxiSet = 7,
+		.Usb20PerPortTxiSet = 1,
+		.Usb20IUsbTxEmphasisEn = 3,
+		.Usb20PerPortTxPeHalf = 0,
+	}"
+
+	# Override USB2 PER PORT register (PORT 1)
+	register "usb2eye[1]" = "{
+		.Usb20PerPortPeTxiSet = 7,
+		.Usb20PerPortTxiSet = 2,
+		.Usb20IUsbTxEmphasisEn = 3,
+		.Usb20PerPortTxPeHalf = 0,
+	}"
+
 	device domain 0 on
 		device pci 00.0 on  end	# - Host Bridge
 		device pci 00.1 on  end	# - DPTF