efm32hg: usb: add usb support

include/libopencm3/efm32/hg/memorymap.h

@@ -96,4 +96,6 @@
 #define ACMP0_BASE			(PERIPH_BASE + 0x01000)
 #define VCMP_BASE			(PERIPH_BASE + 0x00000)
 
+#define USB_OTG_FS_BASE			(USB_BASE    + 0x3C000)
+
 #endif

include/libopencm3/efm32/hg/usb.h

@@ -0,0 +1,61 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2015 Kuldeep Singh Dhaka <kuldeepdhaka9@gmail.com>
+ * Copyright (C) 2018 Seb Holzapfel <schnommus@gmail.com>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LIBOPENCM3_EFM32_USB_H
+#define LIBOPENCM3_EFM32_USB_H
+
+#include <libopencm3/cm3/common.h>
+#include <libopencm3/usb/dwc/otg_fs.h>
+
+#define USB_CTRL			MMIO32(USB_BASE + 0x000)
+#define USB_STATUS			MMIO32(USB_BASE + 0x004)
+#define USB_IF				MMIO32(USB_BASE + 0x008)
+#define USB_IFS				MMIO32(USB_BASE + 0x00C)
+#define USB_IFC				MMIO32(USB_BASE + 0x010)
+#define USB_IEN				MMIO32(USB_BASE + 0x014)
+#define USB_ROUTE			MMIO32(USB_BASE + 0x018)
+
+/* USB_CTRL */
+/* Bits 31:26 - Reserved */
+#define USB_CTRL_BIASPROGEM23_MASK	(0x3 << 24)
+/* Bits 23:22 - Reserved */
+#define USB_CTRL_BIASPROGEM01_MASK	(0x3 << 20)
+/* Bits 19:18 - Reserved */
+#define USB_CTRL_VREGOSEN		(1 << 17)
+#define USB_CTRL_VREGDIS		(1 << 16)
+/* Bits 15:10 - Reserved */
+#define USB_CTRL_LEMIDLEEN		(1 << 9)
+/* Bit 8 - Reserved */
+#define USB_CTRL_LEMPHYCTRL		(1 << 7)
+/* Bit 6 - Reserved */
+#define USB_CTRL_LEMOSCCTRL_MASK	(0x3 << 4)
+#define USB_CTRL_LEMOSCCTRL_NONE	(0x0 << 4)
+#define USB_CTRL_LEMOSCCTRL_GATE	(0x1 << 4)
+/* Bits 3:2 - Reserved */
+#define USB_CTRL_DMPUAP			(1 << 1)
+/* Bit 0 - Reserved */
+
+/* USB_ROUTE */
+/* Bits 31:3 - Reserved */
+#define USB_ROUTE_DMPUPEN		(1 << 2)
+/* Bit 1 - Reserved */
+#define USB_ROUTE_PHYPEN		(1 << 0)
+
+#endif

include/libopencm3/efm32/usb.h

@@ -19,6 +19,8 @@
 
 #if defined(EFM32LG)
 #	include <libopencm3/efm32/lg/usb.h>
+#elif defined(EFM32HG)
+#	include <libopencm3/efm32/hg/usb.h>
 #else
 #	error "efm32 family not defined."
 #endif

include/libopencm3/usb/usbd.h

@@ -59,6 +59,7 @@ extern const usbd_driver st_usbfs_v2_usb_driver;
 #define otgfs_usb_driver stm32f107_usb_driver
 #define otghs_usb_driver stm32f207_usb_driver
 extern const usbd_driver efm32lg_usb_driver;
+extern const usbd_driver efm32hg_usb_driver;
 
 /* <usb.c> */
 /**