diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index 8eb996e..6c85c43 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -79,6 +79,15 @@ config USB_DWC3_KEYSTONE
 	  Support of USB2/3 functionality in TI Keystone2 platforms.
 	  Say 'Y' or 'M' here if you have one such device
 
+config USB_DWC3_ST
+	tristate "STMicroelectronics Platforms"
+	depends on ARCH_STI && OF
+	default USB_DWC3_HOST
+	help
+	  STMicroelectronics SoCs with one DesignWare Core USB3 IP
+	  inside (i.e. STiH407).
+	  Say 'Y' or 'M' if you have one such device.
+
 comment "Debugging features"
 
 config USB_DWC3_DEBUG
diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile
index 10ac3e7..11c9f54 100644
--- a/drivers/usb/dwc3/Makefile
+++ b/drivers/usb/dwc3/Makefile
@@ -33,3 +33,4 @@ obj-$(CONFIG_USB_DWC3_OMAP)		+= dwc3-omap.o
 obj-$(CONFIG_USB_DWC3_EXYNOS)		+= dwc3-exynos.o
 obj-$(CONFIG_USB_DWC3_PCI)		+= dwc3-pci.o
 obj-$(CONFIG_USB_DWC3_KEYSTONE)		+= dwc3-keystone.o
+obj-$(CONFIG_USB_DWC3_ST)		+= dwc3-st.o
diff --git a/drivers/usb/dwc3/dwc3-st.c b/drivers/usb/dwc3/dwc3-st.c
new file mode 100644
index 0000000..2cae9d3
--- /dev/null
+++ b/drivers/usb/dwc3/dwc3-st.c
@@ -0,0 +1,325 @@
+/**
+ * dwc3-st.c Support for dwc3 platform devices on ST Microelectronics platforms
+ *
+ * This is a small platform driver for the dwc3 to provide the glue logic
+ * to configure the controller. Tested on STi platforms.
+ *
+ * Copyright (C) 2014 Stmicroelectronics
+ *
+ * Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
+ * Contributors: Aymen Bouattay <aymen.bouattay@st.com>
+ *               Peter Griffin <peter.griffin@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Inspired by dwc3-omap.c and dwc3-exynos.c.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/ioport.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/mfd/syscon.h>
+#include <linux/delay.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+
+#include "core.h"
+#include "io.h"
+
+/* Reg glue registers */
+#define USB2_CLKRST_CTRL 0x00
+#define aux_clk_en(n) ((n)<<0)
+#define sw_pipew_reset_n(n) ((n)<<4)
+#define ext_cfg_reset_n(n) ((n)<<8)
+#define xhci_revision(n) ((n)<<12)
+
+#define USB2_VBUS_MNGMNT_SEL1 0x2C
+/*
+ * 2'b00 : Override value from Reg 0x30 is selected
+ * 2'b01 : utmiotg_vbusvalid from usb3_top top is selected
+ * 2'b10 : pipew_powerpresent from PIPEW instance is selected
+ * 2'b11 : value is 1'b0
+ */
+#define SEL_OVERRIDE_VBUSVALID(n) ((n)<<0)
+#define SEL_OVERRIDE_POWERPRESENT(n) ((n)<<4)
+#define SEL_OVERRIDE_BVALID(n) ((n)<<8)
+
+#define USB2_VBUS_MNGMNT_VAL1 0x30
+#define OVERRIDE_VBUSVALID_VAL (1 << 0)
+#define OVERRIDE_POWERPRESENT_VAL (1 << 4)
+#define OVERRIDE_BVALID_VAL (1 << 8)
+
+/* Static DRD configuration */
+#define USB_HOST_DEFAULT_MASK	0xffe
+#define USB_SET_PORT_DEVICE	0x1
+
+struct st_dwc3 {
+	struct platform_device *dwc3;	/* platform device pointer */
+	struct device *dev;	/* device pointer */
+	void __iomem *glue_base;	/* ioaddr for programming the glue */
+	struct regmap *regmap;	/* regmap for getting syscfg */
+	int syscfg_reg_off;	/* usb syscfg control offset */
+	bool drd_device_conf;	/* DRD static host/device conf */
+	struct reset_control *rstc_pwrdn;/* Rst control for powerdown*/
+};
+
+static inline u32 st_dwc3_readl(void __iomem *base, u32 offset)
+{
+	return readl_relaxed(base + offset);
+}
+
+static inline void st_dwc3_writel(void __iomem *base, u32 offset, u32 value)
+{
+	writel_relaxed(value, base + offset);
+}
+
+/**
+ * st_dwc3_drd_init: program the port
+ * @dwc3_data: driver private structure
+ * Description: this function is to program the port as either host or device
+ * according to the static configuration passed from devicetree.
+ * OTG and dual role are not yet supported!
+ */
+static int st_dwc3_drd_init(struct st_dwc3 *dwc3_data)
+{
+	u32 val;
+
+	regmap_read(dwc3_data->regmap, dwc3_data->syscfg_reg_off, &val);
+
+	if (dwc3_data->drd_device_conf)
+		val |= USB_SET_PORT_DEVICE;
+	else
+		val &= USB_HOST_DEFAULT_MASK;
+
+	return regmap_write(dwc3_data->regmap, dwc3_data->syscfg_reg_off, val);
+}
+
+/**
+ * st_dwc3_init: init the controller via glue logic
+ * @dwc3_data: driver private structure
+ */
+static void st_dwc3_init(struct st_dwc3 *dwc3_data)
+{
+	u32 reg = st_dwc3_readl(dwc3_data->glue_base, USB2_CLKRST_CTRL);
+
+	reg |= aux_clk_en(1) | ext_cfg_reset_n(1) | xhci_revision(1);
+	reg &= ~sw_pipew_reset_n(1);
+	st_dwc3_writel(dwc3_data->glue_base, USB2_CLKRST_CTRL, reg);
+
+	reg = st_dwc3_readl(dwc3_data->glue_base, USB2_VBUS_MNGMNT_SEL1);
+	reg |= SEL_OVERRIDE_VBUSVALID(1) | SEL_OVERRIDE_POWERPRESENT(1) |
+	    SEL_OVERRIDE_BVALID(1);
+	st_dwc3_writel(dwc3_data->glue_base, USB2_VBUS_MNGMNT_SEL1, reg);
+	udelay(100);
+
+	reg = st_dwc3_readl(dwc3_data->glue_base, USB2_CLKRST_CTRL);
+	reg |= sw_pipew_reset_n(1);
+	st_dwc3_writel(dwc3_data->glue_base, USB2_CLKRST_CTRL, reg);
+}
+
+static void st_dwc3_dt_get_pdata(struct platform_device *pdev,
+				 struct st_dwc3 *dwc3_data)
+{
+	struct device_node *np = pdev->dev.of_node;
+
+	dwc3_data->drd_device_conf =
+	    of_property_read_bool(np, "st,dwc3-drd-device");
+}
+
+/**
+ * st_dwc3_probe: main probe function
+ * @pdev: platform_device
+ * Description: this is the probe function that gets all the resources to manage
+ * the glue-logic, setup the controller and take out of powerdown.
+ */
+static int st_dwc3_probe(struct platform_device *pdev)
+{
+	struct platform_device *dwc3;
+	struct st_dwc3 *dwc3_data;
+	struct resource *res;
+	struct device *dev = &pdev->dev;
+	struct device_node *node = dev->of_node;
+	struct regmap *regmap;
+	int ret = 0;
+
+	if (!node) {
+		dev_err(dev, "device node not found\n");
+		return -EINVAL;
+	}
+
+	dwc3_data = devm_kzalloc(dev, sizeof(*dwc3_data), GFP_KERNEL);
+	if (!dwc3_data)
+		return -ENOMEM;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "reg-glue");
+	if (!res)
+		return -ENXIO;
+
+	dwc3_data->glue_base = devm_request_and_ioremap(dev, res);
+	if (!dwc3_data->glue_base)
+		return -EADDRNOTAVAIL;
+
+	regmap = syscon_regmap_lookup_by_phandle(node, "st,syscfg");
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	dwc3 = platform_device_alloc("st-dwc3", PLATFORM_DEVID_AUTO);
+	if (!dwc3) {
+		dev_err(&pdev->dev, "couldn't allocate dwc3 device\n");
+		return -ENOMEM;
+	}
+
+	dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask);
+
+	dwc3->dev.parent = &pdev->dev;
+	dwc3->dev.dma_mask = pdev->dev.dma_mask;
+	dwc3->dev.dma_parms = pdev->dev.dma_parms;
+
+	dwc3_data->dwc3 = dwc3;
+	dwc3_data->dev = &pdev->dev;
+	dwc3_data->regmap = regmap;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "syscfg-reg");
+	if (!res) {
+		ret = -ENXIO;
+		goto undo_platform_dev_alloc;
+	}
+
+	dwc3_data->syscfg_reg_off = res->start;
+
+	dev_info(&pdev->dev, "glue-logic addr 0x%p, syscfg-reg offset 0x%x\n",
+		 dwc3_data->glue_base, dwc3_data->syscfg_reg_off);
+
+	dwc3_data->rstc_pwrdn = devm_reset_control_get(dwc3_data->dev, NULL);
+	if (IS_ERR(dwc3_data->rstc_pwrdn)) {
+		dev_err(&pdev->dev, "could not get reset controller\n");
+		ret = PTR_ERR(dwc3_data->rstc_pwrdn);
+		goto undo_platform_dev_alloc;
+	}
+
+	/* Manage PowerDown */
+	reset_control_deassert(dwc3_data->rstc_pwrdn);
+
+	st_dwc3_dt_get_pdata(pdev, dwc3_data);
+
+	/* Allocate and initialize the core */
+	ret = of_platform_populate(node, NULL, NULL, dev);
+	if (ret) {
+		dev_err(dev, "failed to add dwc3 core\n");
+		goto undo_powerdown;
+	}
+
+	/*
+	 * Configure the USB port as device or host according to the static
+	 * configuration passed from the platform.
+	 * DRD is the only mode currently supported so this will be enhanced
+	 * later as soon as OTG will be available.
+	 */
+	ret = st_dwc3_drd_init(dwc3_data);
+	if (ret) {
+		dev_err(dev, "st_dwc3_drd_init failed\n");
+		goto undo_powerdown;
+	}
+
+	dev_info(&pdev->dev, "configured as %s DRD\n",
+		 dwc3_data->drd_device_conf ? "device" : "host");
+
+	/* ST glue logic init */
+	st_dwc3_init(dwc3_data);
+
+	ret = platform_device_add_resources(dwc3_data->dwc3, pdev->resource,
+					    pdev->num_resources);
+	if (ret) {
+		dev_err(&pdev->dev, "couldn't add resources to dwc3 device\n");
+		goto undo_powerdown;
+	}
+
+	ret = platform_device_add(dwc3_data->dwc3);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register dwc3 device\n");
+		goto undo_powerdown;
+	}
+
+	platform_set_drvdata(pdev, dwc3_data);
+
+	return 0;
+
+undo_powerdown:
+	reset_control_assert(dwc3_data->rstc_pwrdn);
+undo_platform_dev_alloc:
+	platform_device_put(pdev);
+
+	return ret;
+
+}
+
+static int st_dwc3_remove(struct platform_device *pdev)
+{
+	struct st_dwc3 *dwc3_data = platform_get_drvdata(pdev);
+
+	platform_device_unregister(dwc3_data->dwc3);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int st_dwc3_suspend(struct device *dev)
+{
+	struct st_dwc3 *dwc3_data = dev_get_drvdata(dev);
+
+	reset_control_assert(dwc3_data->rstc_pwrdn);
+
+	pinctrl_pm_select_sleep_state(dev);
+
+	return 0;
+}
+
+static int st_dwc3_resume(struct device *dev)
+{
+	struct st_dwc3 *dwc3_data = dev_get_drvdata(dev);
+
+	pinctrl_pm_select_default_state(dev);
+
+	reset_control_deassert(dwc3_data->rstc_pwrdn);
+
+	return 0;
+}
+
+#endif /* CONFIG_PM_SLEEP */
+
+static const struct dev_pm_ops st_dwc3_dev_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(st_dwc3_suspend, st_dwc3_resume)
+};
+
+static struct of_device_id st_dwc3_match[] = {
+	{ .compatible = "st,stih407-dwc3" },
+	{ /* sentinel */ },
+};
+
+MODULE_DEVICE_TABLE(of, st_dwc3_match);
+
+static struct platform_driver st_dwc3_driver = {
+	.probe = st_dwc3_probe,
+	.remove = st_dwc3_remove,
+	.driver = {
+		.name = "usb-st-dwc3",
+		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(st_dwc3_match),
+		.pm = &st_dwc3_dev_pm_ops,
+	},
+};
+
+module_platform_driver(st_dwc3_driver);
+
+MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
+MODULE_DESCRIPTION("DesignWare USB3 STi Glue Layer");
+MODULE_LICENSE("GPL v2");
