4 files changed, 39 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/usb/exynos-usb.txt b/Documentation/devicetree/bindings/usb/exynos-usb.txt
new file mode 100644
index 000000000000..e8bbb4799e26
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/exynos-usb.txt
@@ -0,0 +1,25 @@
+Samsung Exynos SoC USB controller
+
+The USB devices interface with USB controllers on Exynos SOCs.
+The device node has following properties.
+
+EHCI
+Required properties:
+ - compatible: should be "samsung,exynos4210-ehci" for USB 2.0
+   EHCI controller in host mode.
+ - reg: physical base address of the controller and length of memory mapped
+   region.
+ - interrupts: interrupt number to the cpu.
+
+Optional properties:
+ - samsung,vbus-gpio:  if present, specifies the GPIO that
+   needs to be pulled up for the bus to be powered.
+
+Example:
+
+        usb@12110000 {
+                compatible = "samsung,exynos4210-ehci";
+                reg = <0x12110000 0x100>;
+                interrupts = <0 71 0>;
+                samsung,vbus-gpio = <&gpx2 6 1 3 3>;
+        };
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index 907d404b2120..a8d7233866fa 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -232,6 +232,10 @@
                 samsung,audio-codec = <&wm8994>;
         };
 
+        usb@12110000 {
+                samsung,vbus-gpio = <&gpx2 6 1 3 3>;
+        };
+
         dp-controller {
                 samsung,color-space = <0>;
                 samsung,dynamic-range = <0>;
diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
index 17dd951c1cd2..47b6b847b4a5 100644
--- a/arch/arm/boot/dts/exynos5250-snow.dts
+++ b/arch/arm/boot/dts/exynos5250-snow.dts
@@ -40,4 +40,8 @@
                                 <&gpc4 5 2 3 0>, <&gpc4 6 2 3 0>;
                 };
         };
+
+        usb@12110000 {
+                samsung,vbus-gpio = <&gpx1 1 1 3 3>;
+        };
 };
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 56159a2f5765..5f1c1f3ea009 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -301,6 +301,12 @@
                 dma-names = "tx", "rx";
         };
 
+        usb@12110000 {
+                compatible = "samsung,exynos4210-ehci";
+                reg = <0x12110000 0x100>;
+                interrupts = <0 71 0>;
+        };
+
         amba {
                 #address-cells = <1>;
                 #size-cells = <1>;