libpayload: Add dwc2 usb driver

BUG=chrome-os-partner:29778
TEST=emerge-veyron libpayload

Change-Id: I33f312a939e600b8f4e50a092bb61c5d6bc6d741
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 39ffe53336a2a3b2baa067cdd3dccca5ae93f68e
Original-Change-Id: Idad1ad165fd44df635a0cb13bfec6fada1378bc8
Original-Signed-off-by: huang lin <hl@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/211053
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/9453
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/payloads/libpayload/drivers/usb/usbinit.c b/payloads/libpayload/drivers/usb/usbinit.c
index 4225c3f..7a5828d 100644
--- a/payloads/libpayload/drivers/usb/usbinit.c
+++ b/payloads/libpayload/drivers/usb/usbinit.c
@@ -34,6 +34,7 @@
 #include "ohci.h"
 #include "ehci.h"
 #include "xhci.h"
+#include "dwc2.h"
 #include <usb/usbdisk.h>
 
 #ifdef CONFIG_LP_USB_PCI
@@ -182,6 +183,10 @@
 	case EHCI:
 		return ehci_init((unsigned long)bar);
 #endif
+#ifdef CONFIG_LP_USB_DWC2
+	case DWC2:
+		return dwc2_init(bar);
+#endif
 #ifdef CONFIG_LP_USB_XHCI
 	case XHCI:
 		return xhci_init((unsigned long)bar);