ARM: AM57xx: AM43xx: Fix USB host

CONFIG_USB_XHCI_OMAP can be set for host mode without setting
CONFIG_USB_DWC3 which is meant for gadget mode only.
board_usb_init() was not being defined for CONFIG_USB_XHCI_OMAP
resulting in a data abort on usb start.

Define board_usb_init() for CONFIG_USB_XHCI_OMAP case. Move
gadget specific handling to within CONFIG_USB_DWC3.

Fixes: 6f1af1e358b7 ("board: ti: invoke clock API to enable and disable clocks")
Signed-off-by: Roger Quadros <rogerq@ti.com>
diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c
index b42546a..bde5ac7 100644
--- a/board/ti/am43xx/board.c
+++ b/board/ti/am43xx/board.c
@@ -678,60 +678,6 @@
 	.index = 1,
 };
 
-int board_usb_init(int index, enum usb_init_type init)
-{
-	enable_usb_clocks(index);
-	switch (index) {
-	case 0:
-		if (init == USB_INIT_DEVICE) {
-			usb_otg_ss1.dr_mode = USB_DR_MODE_PERIPHERAL;
-			usb_otg_ss1_glue.vbus_id_status = OMAP_DWC3_VBUS_VALID;
-		} else {
-			usb_otg_ss1.dr_mode = USB_DR_MODE_HOST;
-			usb_otg_ss1_glue.vbus_id_status = OMAP_DWC3_ID_GROUND;
-		}
-
-		dwc3_omap_uboot_init(&usb_otg_ss1_glue);
-		ti_usb_phy_uboot_init(&usb_phy1_device);
-		dwc3_uboot_init(&usb_otg_ss1);
-		break;
-	case 1:
-		if (init == USB_INIT_DEVICE) {
-			usb_otg_ss2.dr_mode = USB_DR_MODE_PERIPHERAL;
-			usb_otg_ss2_glue.vbus_id_status = OMAP_DWC3_VBUS_VALID;
-		} else {
-			usb_otg_ss2.dr_mode = USB_DR_MODE_HOST;
-			usb_otg_ss2_glue.vbus_id_status = OMAP_DWC3_ID_GROUND;
-		}
-
-		ti_usb_phy_uboot_init(&usb_phy2_device);
-		dwc3_omap_uboot_init(&usb_otg_ss2_glue);
-		dwc3_uboot_init(&usb_otg_ss2);
-		break;
-	default:
-		printf("Invalid Controller Index\n");
-	}
-
-	return 0;
-}
-
-int board_usb_cleanup(int index, enum usb_init_type init)
-{
-	switch (index) {
-	case 0:
-	case 1:
-		ti_usb_phy_uboot_exit(index);
-		dwc3_uboot_exit(index);
-		dwc3_omap_uboot_exit(index);
-		break;
-	default:
-		printf("Invalid Controller Index\n");
-	}
-	disable_usb_clocks(index);
-
-	return 0;
-}
-
 int usb_gadget_handle_interrupts(int index)
 {
 	u32 status;
@@ -742,8 +688,62 @@
 
 	return 0;
 }
+#endif /* CONFIG_USB_DWC3 */
+
+#if defined(CONFIG_USB_DWC3) || defined(CONFIG_USB_XHCI_OMAP)
+int board_usb_init(int index, enum usb_init_type init)
+{
+	enable_usb_clocks(index);
+#ifdef CONFIG_USB_DWC3
+	switch (index) {
+	case 0:
+		if (init == USB_INIT_DEVICE) {
+			usb_otg_ss1.dr_mode = USB_DR_MODE_PERIPHERAL;
+			usb_otg_ss1_glue.vbus_id_status = OMAP_DWC3_VBUS_VALID;
+			dwc3_omap_uboot_init(&usb_otg_ss1_glue);
+			ti_usb_phy_uboot_init(&usb_phy1_device);
+			dwc3_uboot_init(&usb_otg_ss1);
+		}
+		break;
+	case 1:
+		if (init == USB_INIT_DEVICE) {
+			usb_otg_ss2.dr_mode = USB_DR_MODE_PERIPHERAL;
+			usb_otg_ss2_glue.vbus_id_status = OMAP_DWC3_VBUS_VALID;
+			ti_usb_phy_uboot_init(&usb_phy2_device);
+			dwc3_omap_uboot_init(&usb_otg_ss2_glue);
+			dwc3_uboot_init(&usb_otg_ss2);
+		}
+		break;
+	default:
+		printf("Invalid Controller Index\n");
+	}
 #endif
 
+	return 0;
+}
+
+int board_usb_cleanup(int index, enum usb_init_type init)
+{
+#ifdef CONFIG_USB_DWC3
+	switch (index) {
+	case 0:
+	case 1:
+		if (init == USB_INIT_DEVICE) {
+			ti_usb_phy_uboot_exit(index);
+			dwc3_uboot_exit(index);
+			dwc3_omap_uboot_exit(index);
+		}
+		break;
+	default:
+		printf("Invalid Controller Index\n");
+	}
+#endif
+	disable_usb_clocks(index);
+
+	return 0;
+}
+#endif /* defined(CONFIG_USB_DWC3) || defined(CONFIG_USB_XHCI_OMAP) */
+
 #ifdef CONFIG_DRIVER_TI_CPSW
 
 static void cpsw_control(int enabled)