arm: odroid: enable/disable usb host phy for exynos4412

Enable/disable the usb host phy on the odroid U/X2 boards which are based
on the Exynos4412 SOC.

Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

arch/arm/cpu/armv7/exynos/power.c

@@ -53,10 +53,37 @@ void exynos5_set_usbhost_phy_ctrl(unsigned int enable)
 	}
 }
 
+void exynos4412_set_usbhost_phy_ctrl(unsigned int enable)
+{
+	struct exynos4412_power *power =
+		(struct exynos4412_power *)samsung_get_base_power();
+
+	if (enable) {
+		/* Enabling USBHOST_PHY */
+		setbits_le32(&power->usbhost_phy_control,
+			     POWER_USB_HOST_PHY_CTRL_EN);
+		setbits_le32(&power->hsic1_phy_control,
+			     POWER_USB_HOST_PHY_CTRL_EN);
+		setbits_le32(&power->hsic2_phy_control,
+			     POWER_USB_HOST_PHY_CTRL_EN);
+	} else {
+		/* Disabling USBHOST_PHY */
+		clrbits_le32(&power->usbhost_phy_control,
+			     POWER_USB_HOST_PHY_CTRL_EN);
+		clrbits_le32(&power->hsic1_phy_control,
+			     POWER_USB_HOST_PHY_CTRL_EN);
+		clrbits_le32(&power->hsic2_phy_control,
+			     POWER_USB_HOST_PHY_CTRL_EN);
+	}
+}
+
 void set_usbhost_phy_ctrl(unsigned int enable)
 {
 	if (cpu_is_exynos5())
 		exynos5_set_usbhost_phy_ctrl(enable);
+	else if (cpu_is_exynos4())
+		if (proid_is_exynos4412())
+			exynos4412_set_usbhost_phy_ctrl(enable);
 }
 
 static void exynos5_set_usbdrd_phy_ctrl(unsigned int enable)

arch/arm/include/asm/arch-exynos/power.h

@@ -210,6 +210,13 @@ struct exynos4_power {
 	unsigned int	gps_alive_option;
 };
 
+struct exynos4412_power {
+	unsigned char	res1[0x0704];
+	unsigned int	usbhost_phy_control;
+	unsigned int	hsic1_phy_control;
+	unsigned int	hsic2_phy_control;
+};
+
 struct exynos5_power {
 	unsigned int	om_stat;
 	unsigned char	res1[0x18];