board: STiH410-B2260: add fastboot support

Add usb_gadget_handle_interrupts(), board_usb_init(),
board_usb_cleanup() and g_dnl_board_usb_cable_connected()
callbacks needed for FASTBOOT support

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

board/st/stih410-b2260/board.c

@@ -7,6 +7,10 @@
  */
 
 #include <common.h>
+#include <linux/usb/otg.h>
+#include <dwc3-sti-glue.h>
+#include <dwc3-uboot.h>
+#include <usb.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -36,3 +40,41 @@ int board_init(void)
 {
 	return 0;
 }
+
+#ifdef CONFIG_USB_DWC3
+static struct dwc3_device dwc3_device_data = {
+	.maximum_speed = USB_SPEED_HIGH,
+	.dr_mode = USB_DR_MODE_PERIPHERAL,
+	.index = 0,
+};
+
+int usb_gadget_handle_interrupts(int index)
+{
+	dwc3_uboot_handle_interrupt(index);
+	return 0;
+}
+
+int board_usb_init(int index, enum usb_init_type init)
+{
+	int node;
+	const void *blob = gd->fdt_blob;
+
+	/* find the snps,dwc3 node */
+	node = fdt_node_offset_by_compatible(blob, -1, "snps,dwc3");
+
+	dwc3_device_data.base = fdtdec_get_addr(blob, node, "reg");
+
+	return dwc3_uboot_init(&dwc3_device_data);
+}
+
+int board_usb_cleanup(int index, enum usb_init_type init)
+{
+	dwc3_uboot_exit(index);
+	return 0;
+}
+
+int g_dnl_board_usb_cable_connected(void)
+{
+	return 1;
+}
+#endif