diff --git a/drivers/usb/phy/phy-rcar-usb.c b/drivers/usb/phy/phy-rcar-usb.c
index a35681b0c501..4893dbde4ee1 100644
--- a/drivers/usb/phy/phy-rcar-usb.c
+++ b/drivers/usb/phy/phy-rcar-usb.c
@@ -23,8 +23,6 @@
 #define USBEH0		0x080C
 #define USBOH0		0x081C
 #define USBCTL0		0x0858
-#define EIIBC1		0x0094
-#define EIIBC2		0x009C
 
 /* USBPCTRL1 */
 #define PHY_RST		(1 << 2)
@@ -40,7 +38,6 @@ struct rcar_usb_phy_priv {
 	spinlock_t lock;
 
 	void __iomem *reg0;
-	void __iomem *reg1;
 	int counter;
 };
 
@@ -59,7 +56,6 @@ static int rcar_usb_phy_init(struct usb_phy *phy)
 	struct rcar_usb_phy_priv *priv = usb_phy_to_priv(phy);
 	struct device *dev = phy->dev;
 	void __iomem *reg0 = priv->reg0;
-	void __iomem *reg1 = priv->reg1;
 	int i;
 	u32 val;
 	unsigned long flags;
@@ -96,19 +92,6 @@ static int rcar_usb_phy_init(struct usb_phy *phy)
 		/* set platform specific port settings */
 		iowrite32(0x00000000, (reg0 + USBPCTRL0));
 
-		/*
-		 * EHCI IP internal buffer setting
-		 * EHCI IP internal buffer enable
-		 *
-		 * These are recommended value of a datasheet
-		 * see [USB :: EHCI internal buffer setting]
-		 */
-		iowrite32(0x00ff0040, (reg0 + EIIBC1));
-		iowrite32(0x00ff0040, (reg1 + EIIBC1));
-
-		iowrite32(0x00000001, (reg0 + EIIBC2));
-		iowrite32(0x00000001, (reg1 + EIIBC2));
-
 		/*
 		 * Bus alignment settings
 		 */
@@ -145,14 +128,13 @@ static void rcar_usb_phy_shutdown(struct usb_phy *phy)
 static int rcar_usb_phy_probe(struct platform_device *pdev)
 {
 	struct rcar_usb_phy_priv *priv;
-	struct resource *res0, *res1;
+	struct resource *res0;
 	struct device *dev = &pdev->dev;
-	void __iomem *reg0, *reg1;
+	void __iomem *reg0;
 	int ret;
 
 	res0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	res1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (!res0 || !res1) {
+	if (!res0) {
 		dev_err(dev, "Not enough platform resources\n");
 		return -EINVAL;
 	}
@@ -164,8 +146,7 @@ static int rcar_usb_phy_probe(struct platform_device *pdev)
 	 * this driver can't use devm_request_and_ioremap(dev, res) here
 	 */
 	reg0 = devm_ioremap_nocache(dev, res0->start, resource_size(res0));
-	reg1 = devm_ioremap_nocache(dev, res1->start, resource_size(res1));
-	if (!reg0 || !reg1) {
+	if (!reg0) {
 		dev_err(dev, "ioremap error\n");
 		return -ENOMEM;
 	}
@@ -177,7 +158,6 @@ static int rcar_usb_phy_probe(struct platform_device *pdev)
 	}
 
 	priv->reg0		= reg0;
-	priv->reg1		= reg1;
 	priv->counter		= 0;
 	priv->phy.dev		= dev;
 	priv->phy.label		= dev_name(dev);