ARM: dts: omap4-droid4: Configure EHCI so modems can be accessed

Droid 4 has two modems, mdm6600 and w3glte. Both are on the HCI USB
controller.

Let's add a configuration for the HCI so the modems can be enabled.

Note that the modems still need additional GPIO based configuration.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Tested-by: Sebastian Reichel <sre@kernel.org>
[tony@atomide.com: left out url]
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap4-droid4-xt894.dts

@@ -71,6 +71,11 @@ hdmi_regulator: regulator-hdmi {
 		regulator-always-on;
 	};
 
+	/* HS USB Host PHY on PORT 1 */
+	hsusb1_phy: hsusb1_phy {
+		compatible = "usb-nop-xceiv";
+	};
+
 	/* LCD regulator from sw5 source */
 	lcd_regulator: regulator-lcd {
 		compatible = "regulator-fixed";
@@ -475,6 +480,15 @@ &uart3 {
 			       &omap4_pmx_core 0x17c>;
 };
 
+&usbhsehci {
+	phys = <&hsusb1_phy>;
+};
+
+&usbhshost {
+	port1-mode = "ohci-phy-4pin-dpdm";
+	port2-mode = "ehci-tll";
+};
+
 /* Internal UTMI+ PHY used for OTG, CPCAP ULPI PHY for detection and charger */
 &usb_otg_hs {
 	interface-type = <1>;