[PATCH v2 18/18] ARM: mvebu: Add Device Tree description of EHCI hosts on Armada 375

[Gregory CLEMENT]

The Marvell Armada 375 SoC contains one EHCI host. This commit adds
the Device Tree description of this interface at the SoC level.

Signed-off-by: Gregory CLEMENT <gregory.clement at free-electrons.com>
---
 arch/arm/boot/dts/armada-375.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/armada-375.dtsi b/arch/arm/boot/dts/armada-375.dtsi
index cbe64ba9eb65..349b9635bf3a 100644
--- a/arch/arm/boot/dts/armada-375.dtsi
+++ b/arch/arm/boot/dts/armada-375.dtsi
@@ -320,6 +320,24 @@
 				clocks = <&coreclk 0>;
 			};
 
+			/*
+			 * On Armada 375, USB2 host controller and
+			 * USB3 host controller are incompatible. That
+			 * means that in the dts of your board, you
+			 * can either select the USB2 controller:
+			 * marvell,orion-ehci or the USB3 controller:
+			 * marvell,armada-375-xhci, but not both. If
+			 * both controllers are selected, then the
+			 * kernel will select the USB3 by default.
+			 */
+			usb at 50000 {
+				compatible = "marvell,orion-ehci";
+				reg = <0x50000 0x500>;
+				interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&gateclk 18>;
+				status = "disabled";
+			};
+
 			usb-cluster at 18400 {
 				compatible = "marvell,armada-375-usb-cluster";
 				reg = <0x18400 0x4>;
-- 
1.8.1.2