diff --git a/arch/arm/mach-uniphier/ph1-pro4/pinctrl.c b/arch/arm/mach-uniphier/ph1-pro4/pinctrl.c
index 72cd34678d..2a5a296f88 100644
--- a/arch/arm/mach-uniphier/ph1-pro4/pinctrl.c
+++ b/arch/arm/mach-uniphier/ph1-pro4/pinctrl.c
@@ -27,6 +27,8 @@ void pin_init(void)
 	sg_set_pinsel(52, 0);	/* XNFWP  -> XNFWP */
 	sg_set_pinsel(53, 0);	/* XNFCE0 -> XNFCE0 */
 	sg_set_pinsel(54, 0);	/* NRYBY0 -> NRYBY0 */
+	/* sg_set_pinsel(131, 1); */	/* RXD2   -> NRYBY1 */
+	/* sg_set_pinsel(132, 1); */	/* TXD2   -> XNFCE1 */
 #endif
 
 #ifdef CONFIG_USB_XHCI_UNIPHIER