arm: socfpga: Add example UDC config

Add example of an USB UDC configuration with DFU and UMS.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Vince Bridgers <vbridger@altera.com>
Acked-by: Pavel Machek <pavel@denx.de>
Cc: Stefan Roese <sr@denx.de>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
diff --git a/board/altera/socfpga/socfpga_cyclone5.c b/board/altera/socfpga/socfpga_cyclone5.c
index 0f81d89..ce625e5 100644
--- a/board/altera/socfpga/socfpga_cyclone5.c
+++ b/board/altera/socfpga/socfpga_cyclone5.c
@@ -8,6 +8,10 @@
 #include <asm/arch/reset_manager.h>
 #include <asm/io.h>
 
+#include <usb.h>
+#include <usb/s3c_udc.h>
+#include <usb_mass_storage.h>
+
 #include <netdev.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -39,3 +43,20 @@
 
 	return 0;
 }
+
+#ifdef CONFIG_USB_GADGET
+struct s3c_plat_otg_data socfpga_otg_data = {
+	.regs_otg	= CONFIG_USB_DWC2_REG_ADDR,
+	.usb_gusbcfg	= 0x1417,
+};
+
+int board_usb_init(int index, enum usb_init_type init)
+{
+	return s3c_udc_probe(&socfpga_otg_data);
+}
+
+int g_dnl_board_usb_cable_connected(void)
+{
+	return 1;
+}
+#endif