diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c
new file mode 100644
index 0000000..432df53
--- /dev/null
+++ b/drivers/usb/dwc3/debugfs.c
@@ -0,0 +1,534 @@
+/**
+ * debugfs.c - DesignWare USB3 DRD Controller DebugFS file
+ *
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
+ * All rights reserved.
+ *
+ * Authors: Felipe Balbi <balbi@ti.com>,
+ *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The names of the above-listed copyright holders may not be used
+ *    to endorse or promote products derived from this software without
+ *    specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2, as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/ptrace.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/delay.h>
+
+#include <asm/uaccess.h>
+
+#include "core.h"
+#include "gadget.h"
+#include "io.h"
+
+struct dwc3_register {
+	const char	*name;
+	u32		offset;
+};
+
+#define dump_register(nm)				\
+{							\
+	.name	= __stringify(nm),			\
+	.offset	= DWC3_ ##nm,				\
+}
+
+static const struct dwc3_register dwc3_regs[] = {
+	dump_register(GSBUSCFG0),
+	dump_register(GSBUSCFG1),
+	dump_register(GTXTHRCFG),
+	dump_register(GRXTHRCFG),
+	dump_register(GCTL),
+	dump_register(GEVTEN),
+	dump_register(GSTS),
+	dump_register(GSNPSID),
+	dump_register(GGPIO),
+	dump_register(GUID),
+	dump_register(GUCTL),
+	dump_register(GBUSERRADDR0),
+	dump_register(GBUSERRADDR1),
+	dump_register(GPRTBIMAP0),
+	dump_register(GPRTBIMAP1),
+	dump_register(GHWPARAMS0),
+	dump_register(GHWPARAMS1),
+	dump_register(GHWPARAMS2),
+	dump_register(GHWPARAMS3),
+	dump_register(GHWPARAMS4),
+	dump_register(GHWPARAMS5),
+	dump_register(GHWPARAMS6),
+	dump_register(GHWPARAMS7),
+	dump_register(GDBGFIFOSPACE),
+	dump_register(GDBGLTSSM),
+	dump_register(GPRTBIMAP_HS0),
+	dump_register(GPRTBIMAP_HS1),
+	dump_register(GPRTBIMAP_FS0),
+	dump_register(GPRTBIMAP_FS1),
+
+	dump_register(GUSB2PHYCFG(0)),
+	dump_register(GUSB2PHYCFG(1)),
+	dump_register(GUSB2PHYCFG(2)),
+	dump_register(GUSB2PHYCFG(3)),
+	dump_register(GUSB2PHYCFG(4)),
+	dump_register(GUSB2PHYCFG(5)),
+	dump_register(GUSB2PHYCFG(6)),
+	dump_register(GUSB2PHYCFG(7)),
+	dump_register(GUSB2PHYCFG(8)),
+	dump_register(GUSB2PHYCFG(9)),
+	dump_register(GUSB2PHYCFG(10)),
+	dump_register(GUSB2PHYCFG(11)),
+	dump_register(GUSB2PHYCFG(12)),
+	dump_register(GUSB2PHYCFG(13)),
+	dump_register(GUSB2PHYCFG(14)),
+	dump_register(GUSB2PHYCFG(15)),
+
+	dump_register(GUSB2I2CCTL(0)),
+	dump_register(GUSB2I2CCTL(1)),
+	dump_register(GUSB2I2CCTL(2)),
+	dump_register(GUSB2I2CCTL(3)),
+	dump_register(GUSB2I2CCTL(4)),
+	dump_register(GUSB2I2CCTL(5)),
+	dump_register(GUSB2I2CCTL(6)),
+	dump_register(GUSB2I2CCTL(7)),
+	dump_register(GUSB2I2CCTL(8)),
+	dump_register(GUSB2I2CCTL(9)),
+	dump_register(GUSB2I2CCTL(10)),
+	dump_register(GUSB2I2CCTL(11)),
+	dump_register(GUSB2I2CCTL(12)),
+	dump_register(GUSB2I2CCTL(13)),
+	dump_register(GUSB2I2CCTL(14)),
+	dump_register(GUSB2I2CCTL(15)),
+
+	dump_register(GUSB2PHYACC(0)),
+	dump_register(GUSB2PHYACC(1)),
+	dump_register(GUSB2PHYACC(2)),
+	dump_register(GUSB2PHYACC(3)),
+	dump_register(GUSB2PHYACC(4)),
+	dump_register(GUSB2PHYACC(5)),
+	dump_register(GUSB2PHYACC(6)),
+	dump_register(GUSB2PHYACC(7)),
+	dump_register(GUSB2PHYACC(8)),
+	dump_register(GUSB2PHYACC(9)),
+	dump_register(GUSB2PHYACC(10)),
+	dump_register(GUSB2PHYACC(11)),
+	dump_register(GUSB2PHYACC(12)),
+	dump_register(GUSB2PHYACC(13)),
+	dump_register(GUSB2PHYACC(14)),
+	dump_register(GUSB2PHYACC(15)),
+
+	dump_register(GUSB3PIPECTL(0)),
+	dump_register(GUSB3PIPECTL(1)),
+	dump_register(GUSB3PIPECTL(2)),
+	dump_register(GUSB3PIPECTL(3)),
+	dump_register(GUSB3PIPECTL(4)),
+	dump_register(GUSB3PIPECTL(5)),
+	dump_register(GUSB3PIPECTL(6)),
+	dump_register(GUSB3PIPECTL(7)),
+	dump_register(GUSB3PIPECTL(8)),
+	dump_register(GUSB3PIPECTL(9)),
+	dump_register(GUSB3PIPECTL(10)),
+	dump_register(GUSB3PIPECTL(11)),
+	dump_register(GUSB3PIPECTL(12)),
+	dump_register(GUSB3PIPECTL(13)),
+	dump_register(GUSB3PIPECTL(14)),
+	dump_register(GUSB3PIPECTL(15)),
+
+	dump_register(GTXFIFOSIZ(0)),
+	dump_register(GTXFIFOSIZ(1)),
+	dump_register(GTXFIFOSIZ(2)),
+	dump_register(GTXFIFOSIZ(3)),
+	dump_register(GTXFIFOSIZ(4)),
+	dump_register(GTXFIFOSIZ(5)),
+	dump_register(GTXFIFOSIZ(6)),
+	dump_register(GTXFIFOSIZ(7)),
+	dump_register(GTXFIFOSIZ(8)),
+	dump_register(GTXFIFOSIZ(9)),
+	dump_register(GTXFIFOSIZ(10)),
+	dump_register(GTXFIFOSIZ(11)),
+	dump_register(GTXFIFOSIZ(12)),
+	dump_register(GTXFIFOSIZ(13)),
+	dump_register(GTXFIFOSIZ(14)),
+	dump_register(GTXFIFOSIZ(15)),
+	dump_register(GTXFIFOSIZ(16)),
+	dump_register(GTXFIFOSIZ(17)),
+	dump_register(GTXFIFOSIZ(18)),
+	dump_register(GTXFIFOSIZ(19)),
+	dump_register(GTXFIFOSIZ(20)),
+	dump_register(GTXFIFOSIZ(21)),
+	dump_register(GTXFIFOSIZ(22)),
+	dump_register(GTXFIFOSIZ(23)),
+	dump_register(GTXFIFOSIZ(24)),
+	dump_register(GTXFIFOSIZ(25)),
+	dump_register(GTXFIFOSIZ(26)),
+	dump_register(GTXFIFOSIZ(27)),
+	dump_register(GTXFIFOSIZ(28)),
+	dump_register(GTXFIFOSIZ(29)),
+	dump_register(GTXFIFOSIZ(30)),
+	dump_register(GTXFIFOSIZ(31)),
+
+	dump_register(GRXFIFOSIZ(0)),
+	dump_register(GRXFIFOSIZ(1)),
+	dump_register(GRXFIFOSIZ(2)),
+	dump_register(GRXFIFOSIZ(3)),
+	dump_register(GRXFIFOSIZ(4)),
+	dump_register(GRXFIFOSIZ(5)),
+	dump_register(GRXFIFOSIZ(6)),
+	dump_register(GRXFIFOSIZ(7)),
+	dump_register(GRXFIFOSIZ(8)),
+	dump_register(GRXFIFOSIZ(9)),
+	dump_register(GRXFIFOSIZ(10)),
+	dump_register(GRXFIFOSIZ(11)),
+	dump_register(GRXFIFOSIZ(12)),
+	dump_register(GRXFIFOSIZ(13)),
+	dump_register(GRXFIFOSIZ(14)),
+	dump_register(GRXFIFOSIZ(15)),
+	dump_register(GRXFIFOSIZ(16)),
+	dump_register(GRXFIFOSIZ(17)),
+	dump_register(GRXFIFOSIZ(18)),
+	dump_register(GRXFIFOSIZ(19)),
+	dump_register(GRXFIFOSIZ(20)),
+	dump_register(GRXFIFOSIZ(21)),
+	dump_register(GRXFIFOSIZ(22)),
+	dump_register(GRXFIFOSIZ(23)),
+	dump_register(GRXFIFOSIZ(24)),
+	dump_register(GRXFIFOSIZ(25)),
+	dump_register(GRXFIFOSIZ(26)),
+	dump_register(GRXFIFOSIZ(27)),
+	dump_register(GRXFIFOSIZ(28)),
+	dump_register(GRXFIFOSIZ(29)),
+	dump_register(GRXFIFOSIZ(30)),
+	dump_register(GRXFIFOSIZ(31)),
+
+	dump_register(GEVNTADRLO(0)),
+	dump_register(GEVNTADRHI(0)),
+	dump_register(GEVNTSIZ(0)),
+	dump_register(GEVNTCOUNT(0)),
+
+	dump_register(GHWPARAMS8),
+	dump_register(DCFG),
+	dump_register(DCTL),
+	dump_register(DEVTEN),
+	dump_register(DSTS),
+	dump_register(DGCMDPAR),
+	dump_register(DGCMD),
+	dump_register(DALEPENA),
+
+	dump_register(DEPCMDPAR2(0)),
+	dump_register(DEPCMDPAR2(1)),
+	dump_register(DEPCMDPAR2(2)),
+	dump_register(DEPCMDPAR2(3)),
+	dump_register(DEPCMDPAR2(4)),
+	dump_register(DEPCMDPAR2(5)),
+	dump_register(DEPCMDPAR2(6)),
+	dump_register(DEPCMDPAR2(7)),
+	dump_register(DEPCMDPAR2(8)),
+	dump_register(DEPCMDPAR2(9)),
+	dump_register(DEPCMDPAR2(10)),
+	dump_register(DEPCMDPAR2(11)),
+	dump_register(DEPCMDPAR2(12)),
+	dump_register(DEPCMDPAR2(13)),
+	dump_register(DEPCMDPAR2(14)),
+	dump_register(DEPCMDPAR2(15)),
+	dump_register(DEPCMDPAR2(16)),
+	dump_register(DEPCMDPAR2(17)),
+	dump_register(DEPCMDPAR2(18)),
+	dump_register(DEPCMDPAR2(19)),
+	dump_register(DEPCMDPAR2(20)),
+	dump_register(DEPCMDPAR2(21)),
+	dump_register(DEPCMDPAR2(22)),
+	dump_register(DEPCMDPAR2(23)),
+	dump_register(DEPCMDPAR2(24)),
+	dump_register(DEPCMDPAR2(25)),
+	dump_register(DEPCMDPAR2(26)),
+	dump_register(DEPCMDPAR2(27)),
+	dump_register(DEPCMDPAR2(28)),
+	dump_register(DEPCMDPAR2(29)),
+	dump_register(DEPCMDPAR2(30)),
+	dump_register(DEPCMDPAR2(31)),
+
+	dump_register(DEPCMDPAR1(0)),
+	dump_register(DEPCMDPAR1(1)),
+	dump_register(DEPCMDPAR1(2)),
+	dump_register(DEPCMDPAR1(3)),
+	dump_register(DEPCMDPAR1(4)),
+	dump_register(DEPCMDPAR1(5)),
+	dump_register(DEPCMDPAR1(6)),
+	dump_register(DEPCMDPAR1(7)),
+	dump_register(DEPCMDPAR1(8)),
+	dump_register(DEPCMDPAR1(9)),
+	dump_register(DEPCMDPAR1(10)),
+	dump_register(DEPCMDPAR1(11)),
+	dump_register(DEPCMDPAR1(12)),
+	dump_register(DEPCMDPAR1(13)),
+	dump_register(DEPCMDPAR1(14)),
+	dump_register(DEPCMDPAR1(15)),
+	dump_register(DEPCMDPAR1(16)),
+	dump_register(DEPCMDPAR1(17)),
+	dump_register(DEPCMDPAR1(18)),
+	dump_register(DEPCMDPAR1(19)),
+	dump_register(DEPCMDPAR1(20)),
+	dump_register(DEPCMDPAR1(21)),
+	dump_register(DEPCMDPAR1(22)),
+	dump_register(DEPCMDPAR1(23)),
+	dump_register(DEPCMDPAR1(24)),
+	dump_register(DEPCMDPAR1(25)),
+	dump_register(DEPCMDPAR1(26)),
+	dump_register(DEPCMDPAR1(27)),
+	dump_register(DEPCMDPAR1(28)),
+	dump_register(DEPCMDPAR1(29)),
+	dump_register(DEPCMDPAR1(30)),
+	dump_register(DEPCMDPAR1(31)),
+
+	dump_register(DEPCMDPAR0(0)),
+	dump_register(DEPCMDPAR0(1)),
+	dump_register(DEPCMDPAR0(2)),
+	dump_register(DEPCMDPAR0(3)),
+	dump_register(DEPCMDPAR0(4)),
+	dump_register(DEPCMDPAR0(5)),
+	dump_register(DEPCMDPAR0(6)),
+	dump_register(DEPCMDPAR0(7)),
+	dump_register(DEPCMDPAR0(8)),
+	dump_register(DEPCMDPAR0(9)),
+	dump_register(DEPCMDPAR0(10)),
+	dump_register(DEPCMDPAR0(11)),
+	dump_register(DEPCMDPAR0(12)),
+	dump_register(DEPCMDPAR0(13)),
+	dump_register(DEPCMDPAR0(14)),
+	dump_register(DEPCMDPAR0(15)),
+	dump_register(DEPCMDPAR0(16)),
+	dump_register(DEPCMDPAR0(17)),
+	dump_register(DEPCMDPAR0(18)),
+	dump_register(DEPCMDPAR0(19)),
+	dump_register(DEPCMDPAR0(20)),
+	dump_register(DEPCMDPAR0(21)),
+	dump_register(DEPCMDPAR0(22)),
+	dump_register(DEPCMDPAR0(23)),
+	dump_register(DEPCMDPAR0(24)),
+	dump_register(DEPCMDPAR0(25)),
+	dump_register(DEPCMDPAR0(26)),
+	dump_register(DEPCMDPAR0(27)),
+	dump_register(DEPCMDPAR0(28)),
+	dump_register(DEPCMDPAR0(29)),
+	dump_register(DEPCMDPAR0(30)),
+	dump_register(DEPCMDPAR0(31)),
+
+	dump_register(DEPCMD(0)),
+	dump_register(DEPCMD(1)),
+	dump_register(DEPCMD(2)),
+	dump_register(DEPCMD(3)),
+	dump_register(DEPCMD(4)),
+	dump_register(DEPCMD(5)),
+	dump_register(DEPCMD(6)),
+	dump_register(DEPCMD(7)),
+	dump_register(DEPCMD(8)),
+	dump_register(DEPCMD(9)),
+	dump_register(DEPCMD(10)),
+	dump_register(DEPCMD(11)),
+	dump_register(DEPCMD(12)),
+	dump_register(DEPCMD(13)),
+	dump_register(DEPCMD(14)),
+	dump_register(DEPCMD(15)),
+	dump_register(DEPCMD(16)),
+	dump_register(DEPCMD(17)),
+	dump_register(DEPCMD(18)),
+	dump_register(DEPCMD(19)),
+	dump_register(DEPCMD(20)),
+	dump_register(DEPCMD(21)),
+	dump_register(DEPCMD(22)),
+	dump_register(DEPCMD(23)),
+	dump_register(DEPCMD(24)),
+	dump_register(DEPCMD(25)),
+	dump_register(DEPCMD(26)),
+	dump_register(DEPCMD(27)),
+	dump_register(DEPCMD(28)),
+	dump_register(DEPCMD(29)),
+	dump_register(DEPCMD(30)),
+	dump_register(DEPCMD(31)),
+
+	dump_register(OCFG),
+	dump_register(OCTL),
+	dump_register(OEVTEN),
+	dump_register(OSTS),
+};
+
+static int dwc3_regdump_show(struct seq_file *s, void *unused)
+{
+	struct dwc3		*dwc = s->private;
+	int			i;
+
+	seq_printf(s, "DesignWare USB3 Core Register Dump\n");
+
+	for (i = 0; i < ARRAY_SIZE(dwc3_regs); i++) {
+		seq_printf(s, "%-20s :    %08x\n", dwc3_regs[i].name,
+				dwc3_readl(dwc->regs, dwc3_regs[i].offset));
+	}
+
+	return 0;
+}
+
+static int dwc3_regdump_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, dwc3_regdump_show, inode->i_private);
+}
+
+static const struct file_operations dwc3_regdump_fops = {
+	.open			= dwc3_regdump_open,
+	.read			= seq_read,
+	.release		= single_release,
+};
+
+
+static int dwc3_send_testmode_cmd(struct dwc3 *dwc, int mode)
+{
+	u32 timeout = 250;
+
+	dwc3_writel(dwc->regs, DWC3_DGCMDPAR, mode);
+	dwc3_writel(dwc->regs, DWC3_DGCMD, DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK |
+			DWC3_DEPCMD_CMDACT);
+	do {
+		u32 reg;
+
+		reg = dwc3_readl(dwc->regs, DWC3_DGCMD);
+		if (!(reg & DWC3_DEPCMD_CMDACT))
+			return 0;
+		timeout--;
+		if (!timeout)
+			return -ETIMEDOUT;
+		mdelay(1);
+	} while (1);
+}
+
+static struct dwc3_trb_hw trb_0 __aligned(16);
+static struct dwc3_trb_hw trb_1 __aligned(16);
+
+#define BUF_SIZE	4096
+static int dwc3_testmode_open(struct inode *inode, struct file *file)
+{
+	struct dwc3 *dwc = inode->i_private;
+	struct dwc3_gadget_ep_cmd_params par0;
+	struct dwc3_gadget_ep_cmd_params par1;
+	struct dwc3_trb         trb;
+	int ret;
+	u8 *buf0;
+	u8 *buf1;
+
+	buf0 = kmalloc(BUF_SIZE, GFP_KERNEL);
+	if (!buf0)
+		return -ENOMEM;
+	buf1 = kmalloc(BUF_SIZE, GFP_KERNEL);
+	if (!buf1)
+		return -ENOMEM;
+
+	memset(buf0, 0xaa, BUF_SIZE);
+	memset(buf1, 0x33, BUF_SIZE);
+
+	memset(&trb, 0, sizeof(trb));
+	memset(&par0, 0, sizeof(par0));
+	memset(&par1, 0, sizeof(par1));
+
+	trb.lst = 1;
+	trb.trbctl = DWC3_TRBCTL_NORMAL;
+	trb.length = BUF_SIZE;
+	trb.hwo = 1;
+
+	trb.bplh = virt_to_phys(buf0);
+	dwc3_trb_to_hw(&trb, &trb_0);
+
+	trb.bplh = virt_to_phys(buf1);
+	dwc3_trb_to_hw(&trb, &trb_1);
+
+	par0.param0.depstrtxfer.transfer_desc_addr_high =
+		upper_32_bits(virt_to_phys(&trb_0));
+	par0.param1.depstrtxfer.transfer_desc_addr_low =
+		lower_32_bits(virt_to_phys(&trb_0));
+
+	par1.param0.depstrtxfer.transfer_desc_addr_high =
+		upper_32_bits(virt_to_phys(&trb_1));
+	par1.param1.depstrtxfer.transfer_desc_addr_low =
+		lower_32_bits(virt_to_phys(&trb_1));
+
+	dwc3_send_testmode_cmd(dwc, 1);
+
+	ret = dwc3_send_gadget_ep_cmd(dwc, 0, DWC3_DEPCMD_STARTTRANSFER, &par0);
+	ret = dwc3_send_gadget_ep_cmd(dwc, 1, DWC3_DEPCMD_STARTTRANSFER, &par1);
+
+	dwc3_send_testmode_cmd(dwc, 0);
+	return -EBUSY;
+}
+
+static const struct file_operations dwc3_testmode_fops = {
+	.open			= dwc3_testmode_open,
+	.read			= seq_read,
+	.release		= single_release,
+};
+
+int __devinit dwc3_debugfs_init(struct dwc3 *dwc)
+{
+	struct dentry		*root;
+	struct dentry		*file;
+	int			ret;
+
+	root = debugfs_create_dir(dev_name(dwc->dev), NULL);
+	if (IS_ERR(root)){
+		ret = PTR_ERR(root);
+		goto err0;
+	}
+
+	dwc->root = root;
+
+	file = debugfs_create_file("regdump", S_IRUGO, root, dwc,
+			&dwc3_regdump_fops);
+	if (IS_ERR(file)) {
+		ret = PTR_ERR(file);
+		goto err1;
+	}
+	file = debugfs_create_file("testmode", S_IRUGO, root, dwc,
+			&dwc3_testmode_fops);
+	if (IS_ERR(file)) {
+		ret = PTR_ERR(file);
+		goto err1;
+	}
+
+	return 0;
+
+err1:
+	debugfs_remove_recursive(root);
+
+err0:
+	return ret;
+}
+
+void __devexit dwc3_debugfs_exit(struct dwc3 *dwc)
+{
+	debugfs_remove_recursive(dwc->root);
+	dwc->root = NULL;
+}