drivers/usb/host/ehci-vf.c - platform/external/u-boot - Gitiles

 // SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2015 Sanchayan Maity <sanchayan.maity@toradex.com>
  * Copyright (C) 2015 Toradex AG
  *
  * Based on ehci-mx6 driver
  */

 #include <common.h>
 #include <dm.h>
 #include <log.h>
 #include <usb.h>
 #include <errno.h>
 #include <asm/global_data.h>
 #include <linux/compiler.h>
 #include <asm/io.h>
 #include <asm-generic/gpio.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/imx-regs.h>
 #include <asm/arch/crm_regs.h>
 #include <asm/mach-imx/iomux-v3.h>
 #include <asm/mach-imx/regs-usbphy.h>
 #include <linux/delay.h>
 #include <usb/ehci-ci.h>
 #include <linux/libfdt.h>
 #include <fdtdec.h>

 #include "ehci.h"

 #define USB_NC_REG_OFFSET				0x00000800

 #define ANADIG_PLL_CTRL_EN_USB_CLKS		(1 << 6)

 #define UCTRL_OVER_CUR_POL	(1 << 8) /* OTG Polarity of Overcurrent */
 #define UCTRL_OVER_CUR_DIS	(1 << 7) /* Disable OTG Overcurrent Detection */

 /* USBCMD */
 #define UCMD_RUN_STOP		(1 << 0) /* controller run/stop */
 #define UCMD_RESET			(1 << 1) /* controller reset */

 DECLARE_GLOBAL_DATA_PTR;

 static const unsigned phy_bases[] = {
 	USB_PHY0_BASE_ADDR,
 	USB_PHY1_BASE_ADDR,
 };

 static const unsigned nc_reg_bases[] = {
 	USBC0_BASE_ADDR,
 	USBC1_BASE_ADDR,
 };

 static void usb_internal_phy_clock_gate(int index)
 {
 	void __iomem *phy_reg;

 	phy_reg = (void __iomem *)phy_bases[index];
 	clrbits_le32(phy_reg + USBPHY_CTRL, USBPHY_CTRL_CLKGATE);
 }

 static void usb_power_config(int index)
 {
 	struct anadig_reg __iomem *anadig =
 		(struct anadig_reg __iomem *)ANADIG_BASE_ADDR;
 	void __iomem *pll_ctrl;

 	switch (index) {
 	case 0:
 		pll_ctrl = &anadig->pll3_ctrl;
 		clrbits_le32(pll_ctrl, ANADIG_PLL3_CTRL_BYPASS);
 		setbits_le32(pll_ctrl, ANADIG_PLL3_CTRL_ENABLE
 			 | ANADIG_PLL3_CTRL_POWERDOWN
 			 | ANADIG_PLL_CTRL_EN_USB_CLKS);
 		break;
 	case 1:
 		pll_ctrl = &anadig->pll7_ctrl;
 		clrbits_le32(pll_ctrl, ANADIG_PLL7_CTRL_BYPASS);
 		setbits_le32(pll_ctrl, ANADIG_PLL7_CTRL_ENABLE
 			 | ANADIG_PLL7_CTRL_POWERDOWN
 			 | ANADIG_PLL_CTRL_EN_USB_CLKS);
 		break;
 	default:
 		return;
 	}
 }

 static void usb_phy_enable(int index, struct usb_ehci *ehci)
 {
 	void __iomem *phy_reg;
 	void __iomem *phy_ctrl;
 	void __iomem *usb_cmd;

 	phy_reg = (void __iomem *)phy_bases[index];
 	phy_ctrl = (void __iomem *)(phy_reg + USBPHY_CTRL);
 	usb_cmd = (void __iomem *)&ehci->usbcmd;

 	/* Stop then Reset */
 	clrbits_le32(usb_cmd, UCMD_RUN_STOP);
 	while (readl(usb_cmd) & UCMD_RUN_STOP)
 		;

 	setbits_le32(usb_cmd, UCMD_RESET);
 	while (readl(usb_cmd) & UCMD_RESET)
 		;

 	/* Reset USBPHY module */
 	setbits_le32(phy_ctrl, USBPHY_CTRL_SFTRST);
 	udelay(10);

 	/* Remove CLKGATE and SFTRST */
 	clrbits_le32(phy_ctrl, USBPHY_CTRL_CLKGATE | USBPHY_CTRL_SFTRST);
 	udelay(10);

 	/* Power up the PHY */
 	writel(0, phy_reg + USBPHY_PWD);

 	/* Enable FS/LS device */
 	setbits_le32(phy_ctrl, USBPHY_CTRL_ENUTMILEVEL2 |
 		 USBPHY_CTRL_ENUTMILEVEL3);
 }

 static void usb_oc_config(int index)
 {
 	void __iomem *ctrl;

 	ctrl = (void __iomem *)(nc_reg_bases[index] + USB_NC_REG_OFFSET);

 	setbits_le32(ctrl, UCTRL_OVER_CUR_POL);
 	setbits_le32(ctrl, UCTRL_OVER_CUR_DIS);
 }

 int __weak board_usb_phy_mode(int port)
 {
 	return 0;
 }

 int __weak board_ehci_hcd_init(int port)
 {
 	return 0;
 }

 int ehci_vf_common_init(struct usb_ehci *ehci, int index)
 {
 	int ret;

 	/* Do board specific initialisation */
 	ret = board_ehci_hcd_init(index);
 	if (ret)
 		return ret;

 	usb_power_config(index);
 	usb_oc_config(index);
 	usb_internal_phy_clock_gate(index);
 	usb_phy_enable(index, ehci);

 	return 0;
 }

 #if !CONFIG_IS_ENABLED(DM_USB)
 int ehci_hcd_init(int index, enum usb_init_type init,
 		struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 {
 	struct usb_ehci *ehci;
 	enum usb_init_type type;
 	int ret;

 	if (index >= ARRAY_SIZE(nc_reg_bases))
 		return -EINVAL;

 	ehci = (struct usb_ehci *)nc_reg_bases[index];

 	ret = ehci_vf_common_init(index);
 	if (ret)
 		return ret;

 	*hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength);
 	*hcor = (struct ehci_hcor *)((uint32_t)*hccr +
 			HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));

 	type = board_usb_phy_mode(index);
 	if (type != init)
 		return -ENODEV;

 	if (init == USB_INIT_DEVICE) {
 		setbits_le32(&ehci->usbmode, CM_DEVICE);
 		writel((PORT_PTS_UTMI | PORT_PTS_PTW), &ehci->portsc);
 		setbits_le32(&ehci->portsc, USB_EN);
 	} else if (init == USB_INIT_HOST) {
 		setbits_le32(&ehci->usbmode, CM_HOST);
 		writel((PORT_PTS_UTMI | PORT_PTS_PTW), &ehci->portsc);
 		setbits_le32(&ehci->portsc, USB_EN);
 	}

 	return 0;
 }

 int ehci_hcd_stop(int index)
 {
 	return 0;
 }
 #else
 /* Possible port types (dual role mode) */
 enum dr_mode {
 	DR_MODE_NONE = 0,
 	DR_MODE_HOST,		/* supports host operation */
 	DR_MODE_DEVICE,		/* supports device operation */
 	DR_MODE_OTG,		/* supports both */
 };

 struct ehci_vf_priv_data {
 	struct ehci_ctrl ctrl;
 	struct usb_ehci *ehci;
 	struct gpio_desc cdet_gpio;
 	enum usb_init_type init_type;
 	enum dr_mode dr_mode;
 	u32 portnr;
 };

 static int vf_usb_of_to_plat(struct udevice *dev)
 {
 	struct ehci_vf_priv_data *priv = dev_get_priv(dev);
 	const void *dt_blob = gd->fdt_blob;
 	int node = dev_of_offset(dev);
 	const char *mode;

 	priv->portnr = dev_seq(dev);

 	priv->ehci = dev_read_addr_ptr(dev);
 	mode = fdt_getprop(dt_blob, node, "dr_mode", NULL);
 	if (mode) {
 		if (0 == strcmp(mode, "host")) {
 			priv->dr_mode = DR_MODE_HOST;
 			priv->init_type = USB_INIT_HOST;
 		} else if (0 == strcmp(mode, "peripheral")) {
 			priv->dr_mode = DR_MODE_DEVICE;
 			priv->init_type = USB_INIT_DEVICE;
 		} else if (0 == strcmp(mode, "otg")) {
 			priv->dr_mode = DR_MODE_OTG;
 			/*
 			 * We set init_type to device by default when OTG
 			 * mode is requested. If a valid gpio is provided
 			 * we will switch the init_type based on the state
 			 * of the gpio pin.
 			 */
 			priv->init_type = USB_INIT_DEVICE;
 		} else {
 			debug("%s: Cannot decode dr_mode '%s'\n",
 			      __func__, mode);
 			return -EINVAL;
 		}
 	} else {
 		priv->dr_mode = DR_MODE_HOST;
 		priv->init_type = USB_INIT_HOST;
 	}

 	if (priv->dr_mode == DR_MODE_OTG) {
 		gpio_request_by_name_nodev(offset_to_ofnode(node),
 					   "fsl,cdet-gpio", 0, &priv->cdet_gpio,
 					   GPIOD_IS_IN);
 		if (dm_gpio_is_valid(&priv->cdet_gpio)) {
 			if (dm_gpio_get_value(&priv->cdet_gpio))
 				priv->init_type = USB_INIT_DEVICE;
 			else
 				priv->init_type = USB_INIT_HOST;
 		}
 	}

 	return 0;
 }

 static int vf_init_after_reset(struct ehci_ctrl *dev)
 {
 	struct ehci_vf_priv_data *priv = dev->priv;
 	enum usb_init_type type = priv->init_type;
 	struct usb_ehci *ehci = priv->ehci;
 	int ret;

 	ret = ehci_vf_common_init(priv->ehci, priv->portnr);
 	if (ret)
 		return ret;

 	if (type == USB_INIT_DEVICE)
 		return 0;

 	setbits_le32(&ehci->usbmode, CM_HOST);
 	writel((PORT_PTS_UTMI | PORT_PTS_PTW), &ehci->portsc);
 	setbits_le32(&ehci->portsc, USB_EN);

 	mdelay(10);

 	return 0;
 }

 static const struct ehci_ops vf_ehci_ops = {
 	.init_after_reset = vf_init_after_reset
 };

 static int vf_usb_bind(struct udevice *dev)
 {
 	/*
 	 * Without this hack, if we return ENODEV for USB Controller 0, on
 	 * probe for the next controller, USB Controller 1 will be given a
 	 * sequence number of 0. This conflicts with our requirement of
 	 * sequence numbers while initialising the peripherals.
 	 *
 	 * FIXME: Check that this still works OK with the new sequence numbers
 	 */

 	return 0;
 }

 static int ehci_usb_probe(struct udevice *dev)
 {
 	struct usb_plat *plat = dev_get_plat(dev);
 	struct ehci_vf_priv_data *priv = dev_get_priv(dev);
 	struct usb_ehci *ehci = priv->ehci;
 	struct ehci_hccr *hccr;
 	struct ehci_hcor *hcor;
 	int ret;

 	ret = ehci_vf_common_init(ehci, priv->portnr);
 	if (ret)
 		return ret;

 	if (priv->init_type != plat->init_type)
 		return -ENODEV;

 	if (priv->init_type == USB_INIT_HOST) {
 		setbits_le32(&ehci->usbmode, CM_HOST);
 		writel((PORT_PTS_UTMI | PORT_PTS_PTW), &ehci->portsc);
 		setbits_le32(&ehci->portsc, USB_EN);
 	}

 	mdelay(10);

 	hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength);
 	hcor = (struct ehci_hcor *)((uint32_t)hccr +
 				HC_LENGTH(ehci_readl(&hccr->cr_capbase)));

 	return ehci_register(dev, hccr, hcor, &vf_ehci_ops, 0, priv->init_type);
 }

 static const struct udevice_id vf_usb_ids[] = {
 	{ .compatible = "fsl,vf610-usb" },
 	{ }
 };

 U_BOOT_DRIVER(usb_ehci) = {
 	.name = "ehci_vf",
 	.id = UCLASS_USB,
 	.of_match = vf_usb_ids,
 	.bind = vf_usb_bind,
 	.probe = ehci_usb_probe,
 	.remove = ehci_deregister,
 	.ops = &ehci_usb_ops,
 	.of_to_plat = vf_usb_of_to_plat,
 	.plat_auto	= sizeof(struct usb_plat),
 	.priv_auto	= sizeof(struct ehci_vf_priv_data),
 	.flags = DM_FLAG_ALLOC_PRIV_DMA,
 };
 #endif
	// SPDX-License-Identifier: GPL-2.0+
	/*
	* Copyright (c) 2015 Sanchayan Maity <sanchayan.maity@toradex.com>
	* Copyright (C) 2015 Toradex AG
	*
	* Based on ehci-mx6 driver
	*/

	#include <common.h>
	#include <dm.h>
	#include <log.h>
	#include <usb.h>
	#include <errno.h>
	#include <asm/global_data.h>
	#include <linux/compiler.h>
	#include <asm/io.h>
	#include <asm-generic/gpio.h>
	#include <asm/arch/clock.h>
	#include <asm/arch/imx-regs.h>
	#include <asm/arch/crm_regs.h>
	#include <asm/mach-imx/iomux-v3.h>
	#include <asm/mach-imx/regs-usbphy.h>
	#include <linux/delay.h>
	#include <usb/ehci-ci.h>
	#include <linux/libfdt.h>
	#include <fdtdec.h>

	#include "ehci.h"

	#define USB_NC_REG_OFFSET 0x00000800

	#define ANADIG_PLL_CTRL_EN_USB_CLKS (1 << 6)

	#define UCTRL_OVER_CUR_POL (1 << 8) /* OTG Polarity of Overcurrent */
	#define UCTRL_OVER_CUR_DIS (1 << 7) /* Disable OTG Overcurrent Detection */

	/* USBCMD */
	#define UCMD_RUN_STOP (1 << 0) /* controller run/stop */
	#define UCMD_RESET (1 << 1) /* controller reset */

	DECLARE_GLOBAL_DATA_PTR;

	static const unsigned phy_bases[] = {
	USB_PHY0_BASE_ADDR,
	USB_PHY1_BASE_ADDR,
	};

	static const unsigned nc_reg_bases[] = {
	USBC0_BASE_ADDR,
	USBC1_BASE_ADDR,
	};

	static void usb_internal_phy_clock_gate(int index)
	{
	void __iomem *phy_reg;

	phy_reg = (void __iomem *)phy_bases[index];
	clrbits_le32(phy_reg + USBPHY_CTRL, USBPHY_CTRL_CLKGATE);
	}

	static void usb_power_config(int index)
	{
	struct anadig_reg __iomem *anadig =
	(struct anadig_reg __iomem *)ANADIG_BASE_ADDR;
	void __iomem *pll_ctrl;

	switch (index) {
	case 0:
	pll_ctrl = &anadig->pll3_ctrl;
	clrbits_le32(pll_ctrl, ANADIG_PLL3_CTRL_BYPASS);
	setbits_le32(pll_ctrl, ANADIG_PLL3_CTRL_ENABLE
	\| ANADIG_PLL3_CTRL_POWERDOWN
	\| ANADIG_PLL_CTRL_EN_USB_CLKS);
	break;
	case 1:
	pll_ctrl = &anadig->pll7_ctrl;
	clrbits_le32(pll_ctrl, ANADIG_PLL7_CTRL_BYPASS);
	setbits_le32(pll_ctrl, ANADIG_PLL7_CTRL_ENABLE
	\| ANADIG_PLL7_CTRL_POWERDOWN
	\| ANADIG_PLL_CTRL_EN_USB_CLKS);
	break;
	default:
	return;
	}
	}

	static void usb_phy_enable(int index, struct usb_ehci *ehci)
	{
	void __iomem *phy_reg;
	void __iomem *phy_ctrl;
	void __iomem *usb_cmd;

	phy_reg = (void __iomem *)phy_bases[index];
	phy_ctrl = (void __iomem *)(phy_reg + USBPHY_CTRL);
	usb_cmd = (void __iomem *)&ehci->usbcmd;

	/* Stop then Reset */
	clrbits_le32(usb_cmd, UCMD_RUN_STOP);
	while (readl(usb_cmd) & UCMD_RUN_STOP)
	;

	setbits_le32(usb_cmd, UCMD_RESET);
	while (readl(usb_cmd) & UCMD_RESET)
	;

	/* Reset USBPHY module */
	setbits_le32(phy_ctrl, USBPHY_CTRL_SFTRST);
	udelay(10);

	/* Remove CLKGATE and SFTRST */
	clrbits_le32(phy_ctrl, USBPHY_CTRL_CLKGATE \| USBPHY_CTRL_SFTRST);
	udelay(10);

	/* Power up the PHY */
	writel(0, phy_reg + USBPHY_PWD);

	/* Enable FS/LS device */
	setbits_le32(phy_ctrl, USBPHY_CTRL_ENUTMILEVEL2 \|
	USBPHY_CTRL_ENUTMILEVEL3);
	}

	static void usb_oc_config(int index)
	{
	void __iomem *ctrl;

	ctrl = (void __iomem *)(nc_reg_bases[index] + USB_NC_REG_OFFSET);

	setbits_le32(ctrl, UCTRL_OVER_CUR_POL);
	setbits_le32(ctrl, UCTRL_OVER_CUR_DIS);
	}

	int __weak board_usb_phy_mode(int port)
	{
	return 0;
	}

	int __weak board_ehci_hcd_init(int port)
	{
	return 0;
	}

	int ehci_vf_common_init(struct usb_ehci *ehci, int index)
	{
	int ret;

	/* Do board specific initialisation */
	ret = board_ehci_hcd_init(index);
	if (ret)
	return ret;

	usb_power_config(index);
	usb_oc_config(index);
	usb_internal_phy_clock_gate(index);
	usb_phy_enable(index, ehci);

	return 0;
	}

	#if !CONFIG_IS_ENABLED(DM_USB)
	int ehci_hcd_init(int index, enum usb_init_type init,
	struct ehci_hccr hccr, struct ehci_hcor hcor)
	{
	struct usb_ehci *ehci;
	enum usb_init_type type;
	int ret;

	if (index >= ARRAY_SIZE(nc_reg_bases))
	return -EINVAL;

	ehci = (struct usb_ehci *)nc_reg_bases[index];

	ret = ehci_vf_common_init(index);
	if (ret)
	return ret;

	hccr = (struct ehci_hccr )((uint32_t)&ehci->caplength);
	hcor = (struct ehci_hcor )((uint32_t)*hccr +
	HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));

	type = board_usb_phy_mode(index);
	if (type != init)
	return -ENODEV;

	if (init == USB_INIT_DEVICE) {
	setbits_le32(&ehci->usbmode, CM_DEVICE);
	writel((PORT_PTS_UTMI \| PORT_PTS_PTW), &ehci->portsc);
	setbits_le32(&ehci->portsc, USB_EN);
	} else if (init == USB_INIT_HOST) {
	setbits_le32(&ehci->usbmode, CM_HOST);
	writel((PORT_PTS_UTMI \| PORT_PTS_PTW), &ehci->portsc);
	setbits_le32(&ehci->portsc, USB_EN);
	}

	return 0;
	}

	int ehci_hcd_stop(int index)
	{
	return 0;
	}
	#else
	/* Possible port types (dual role mode) */
	enum dr_mode {
	DR_MODE_NONE = 0,
	DR_MODE_HOST, /* supports host operation */
	DR_MODE_DEVICE, /* supports device operation */
	DR_MODE_OTG, /* supports both */
	};

	struct ehci_vf_priv_data {
	struct ehci_ctrl ctrl;
	struct usb_ehci *ehci;
	struct gpio_desc cdet_gpio;
	enum usb_init_type init_type;
	enum dr_mode dr_mode;
	u32 portnr;
	};

	static int vf_usb_of_to_plat(struct udevice *dev)
	{
	struct ehci_vf_priv_data *priv = dev_get_priv(dev);
	const void *dt_blob = gd->fdt_blob;
	int node = dev_of_offset(dev);
	const char *mode;

	priv->portnr = dev_seq(dev);

	priv->ehci = dev_read_addr_ptr(dev);
	mode = fdt_getprop(dt_blob, node, "dr_mode", NULL);
	if (mode) {
	if (0 == strcmp(mode, "host")) {
	priv->dr_mode = DR_MODE_HOST;
	priv->init_type = USB_INIT_HOST;
	} else if (0 == strcmp(mode, "peripheral")) {
	priv->dr_mode = DR_MODE_DEVICE;
	priv->init_type = USB_INIT_DEVICE;
	} else if (0 == strcmp(mode, "otg")) {
	priv->dr_mode = DR_MODE_OTG;
	/*
	* We set init_type to device by default when OTG
	* mode is requested. If a valid gpio is provided
	* we will switch the init_type based on the state
	* of the gpio pin.
	*/
	priv->init_type = USB_INIT_DEVICE;
	} else {
	debug("%s: Cannot decode dr_mode '%s'\n",
	__func__, mode);
	return -EINVAL;
	}
	} else {
	priv->dr_mode = DR_MODE_HOST;
	priv->init_type = USB_INIT_HOST;
	}

	if (priv->dr_mode == DR_MODE_OTG) {
	gpio_request_by_name_nodev(offset_to_ofnode(node),
	"fsl,cdet-gpio", 0, &priv->cdet_gpio,
	GPIOD_IS_IN);
	if (dm_gpio_is_valid(&priv->cdet_gpio)) {
	if (dm_gpio_get_value(&priv->cdet_gpio))
	priv->init_type = USB_INIT_DEVICE;
	else
	priv->init_type = USB_INIT_HOST;
	}
	}

	return 0;
	}

	static int vf_init_after_reset(struct ehci_ctrl *dev)
	{
	struct ehci_vf_priv_data *priv = dev->priv;
	enum usb_init_type type = priv->init_type;
	struct usb_ehci *ehci = priv->ehci;
	int ret;

	ret = ehci_vf_common_init(priv->ehci, priv->portnr);
	if (ret)
	return ret;

	if (type == USB_INIT_DEVICE)
	return 0;

	setbits_le32(&ehci->usbmode, CM_HOST);
	writel((PORT_PTS_UTMI \| PORT_PTS_PTW), &ehci->portsc);
	setbits_le32(&ehci->portsc, USB_EN);

	mdelay(10);

	return 0;
	}

	static const struct ehci_ops vf_ehci_ops = {
	.init_after_reset = vf_init_after_reset
	};

	static int vf_usb_bind(struct udevice *dev)
	{
	/*
	* Without this hack, if we return ENODEV for USB Controller 0, on
	* probe for the next controller, USB Controller 1 will be given a
	* sequence number of 0. This conflicts with our requirement of
	* sequence numbers while initialising the peripherals.
	*
	* FIXME: Check that this still works OK with the new sequence numbers
	*/

	return 0;
	}

	static int ehci_usb_probe(struct udevice *dev)
	{
	struct usb_plat *plat = dev_get_plat(dev);
	struct ehci_vf_priv_data *priv = dev_get_priv(dev);
	struct usb_ehci *ehci = priv->ehci;
	struct ehci_hccr *hccr;
	struct ehci_hcor *hcor;
	int ret;

	ret = ehci_vf_common_init(ehci, priv->portnr);
	if (ret)
	return ret;

	if (priv->init_type != plat->init_type)
	return -ENODEV;

	if (priv->init_type == USB_INIT_HOST) {
	setbits_le32(&ehci->usbmode, CM_HOST);
	writel((PORT_PTS_UTMI \| PORT_PTS_PTW), &ehci->portsc);
	setbits_le32(&ehci->portsc, USB_EN);
	}

	mdelay(10);

	hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength);
	hcor = (struct ehci_hcor *)((uint32_t)hccr +
	HC_LENGTH(ehci_readl(&hccr->cr_capbase)));

	return ehci_register(dev, hccr, hcor, &vf_ehci_ops, 0, priv->init_type);
	}

	static const struct udevice_id vf_usb_ids[] = {
	{ .compatible = "fsl,vf610-usb" },
	{ }
	};

	U_BOOT_DRIVER(usb_ehci) = {
	.name = "ehci_vf",
	.id = UCLASS_USB,
	.of_match = vf_usb_ids,
	.bind = vf_usb_bind,
	.probe = ehci_usb_probe,
	.remove = ehci_deregister,
	.ops = &ehci_usb_ops,
	.of_to_plat = vf_usb_of_to_plat,
	.plat_auto = sizeof(struct usb_plat),
	.priv_auto = sizeof(struct ehci_vf_priv_data),
	.flags = DM_FLAG_ALLOC_PRIV_DMA,
	};
	#endif