[PATCH v4 4/4] ARM: Exynos5250: Enabling dwc3-exynos driver

[Vivek Gautam]

Adding DWC3 device tree node for Exynos5250 needed to
parse device tree data.
Also enabling XHCI support on exynos5250.

Signed-off-by: Vivek Gautam <gautam.vivek at samsung.com>
---
 .../devicetree/bindings/usb/exynos-usb.txt         |   14 ++++++++++++++
 arch/arm/boot/dts/exynos5250.dtsi                  |    6 ++++++
 arch/arm/mach-exynos/Kconfig                       |    1 +
 3 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/exynos-usb.txt b/Documentation/devicetree/bindings/usb/exynos-usb.txt
index f66fcdd..d660410 100644
--- a/Documentation/devicetree/bindings/usb/exynos-usb.txt
+++ b/Documentation/devicetree/bindings/usb/exynos-usb.txt
@@ -38,3 +38,17 @@ Example:
 		reg = <0x12120000 0x100>;
 		interrupts = <0 71 0>;
 	};
+
+DWC3
+Required properties:
+ - compatible: should be "samsung,exynos5250-dwc3" for USB 3.0 DWC3 controller.
+ - reg: physical base address of the controller and length of memory mapped
+   region.
+ - interrupts: interrupt number to the cpu.
+
+Example:
+	usb at 12000000 {
+		compatible = "samsung,exynos5250-dwc3";
+		reg = <0x12000000 0x10000>;
+		interrupts = <0 72 0>;
+	};
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index ebb0907..a747524 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -275,6 +275,12 @@
 		#size-cells = <0>;
 	};
 
+	usb at 12000000 {
+		compatible = "samsung,exynos5250-dwc3";
+		reg = <0x12000000 0x10000>;
+		interrupts = <0 72 0>;
+	};
+
 	usb at 12110000 {
 		compatible = "samsung,exynos4210-ehci";
 		reg = <0x12110000 0x100>;
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index d26c9f9..e62fd20 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -428,6 +428,7 @@ config MACH_EXYNOS5_DT
 	depends on ARCH_EXYNOS5
 	select ARM_AMBA
 	select USE_OF
+	select USB_ARCH_HAS_XHCI
 	help
 	  Machine support for Samsung EXYNOS5 machine with device tree enabled.
 	  Select this if a fdt blob is available for the EXYNOS5 SoC based board.
-- 
1.7.6.5