[PATCH 2/2] ARM: Exynos5250: Enabling USB 3.0 phy for samsung-usbphy driver

[Vivek Gautam]

Adding base address information and required platform data
support for enabling USB DRD phy on exynos5250 SOC.

Signed-off-by: Vivek Gautam <gautam.vivek at samsung.com>
---
 arch/arm/boot/dts/exynos5250.dtsi            |    3 ++-
 arch/arm/mach-exynos/include/mach/regs-pmu.h |    4 ++++
 arch/arm/mach-exynos/setup-usb-phy.c         |    9 +++++++++
 3 files changed, 15 insertions(+), 1 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 82bf042..51693af 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -220,7 +220,8 @@
 
 	usbphy {
 		compatible = "samsung,exynos5250-usbphy";
-		reg = <0x12130000 0x100>;
+		reg = <0x12130000 0x100>,
+		      <0x12100000 0x100>;
 	};
 
 	amba {
diff --git a/arch/arm/mach-exynos/include/mach/regs-pmu.h b/arch/arm/mach-exynos/include/mach/regs-pmu.h
index d4e392b..67132b4 100644
--- a/arch/arm/mach-exynos/include/mach/regs-pmu.h
+++ b/arch/arm/mach-exynos/include/mach/regs-pmu.h
@@ -39,6 +39,10 @@
 #define S5P_HDMI_PHY_CONTROL			S5P_PMUREG(0x0700)
 #define S5P_HDMI_PHY_ENABLE			(1 << 0)
 
+/* only for EXYNOS5250*/
+#define S5P_USBDRD_PHY_CONTROL			S5P_PMUREG(0x0704)
+#define S5P_USBDRD_PHY_ENABLE			(1 << 0)
+
 #define S5P_DAC_PHY_CONTROL			S5P_PMUREG(0x070C)
 #define S5P_DAC_PHY_ENABLE			(1 << 0)
 
diff --git a/arch/arm/mach-exynos/setup-usb-phy.c b/arch/arm/mach-exynos/setup-usb-phy.c
index 6c768e0..5e46fdd 100644
--- a/arch/arm/mach-exynos/setup-usb-phy.c
+++ b/arch/arm/mach-exynos/setup-usb-phy.c
@@ -238,6 +238,15 @@ void s5p_usb_phy_pmu_isolation(int on, int type)
 			writel(readl(S5P_USBHOST_PHY_CONTROL)
 				| S5P_USBHOST_PHY_ENABLE,
 					S5P_USBHOST_PHY_CONTROL);
+	} else if (type == USB_PHY_TYPE_DRD) {
+		if (on)
+			writel(readl(S5P_USBDRD_PHY_CONTROL)
+				& ~S5P_USBDRD_PHY_ENABLE,
+					S5P_USBDRD_PHY_CONTROL);
+		else
+			writel(readl(S5P_USBDRD_PHY_CONTROL)
+				| S5P_USBDRD_PHY_ENABLE,
+					S5P_USBDRD_PHY_CONTROL);
 	} else {
 		if (on)
 			writel(readl(S5P_USBDEVICE_PHY_CONTROL)
-- 
1.7.6.5