usb: Drop unused fotg210 gadget

This is not used and appears to be associated with the faraday board which
has been removed. Drop the driver and Kconfig options.

Signed-off-by: Simon Glass <sjg@chromium.org>

3 files changed, 1 insertions, 974 deletions

diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 9c04403da30..b04b6bcd779 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -19,8 +19,7 @@ obj-$(CONFIG_USB_GADGET_ATMEL_USBA) += atmel_usba_udc.o
 obj-$(CONFIG_USB_GADGET_BCM_UDC_OTG_PHY) += bcm_udc_otg_phy.o
 obj-$(CONFIG_USB_GADGET_DWC2_OTG) += dwc2_udc_otg.o
 obj-$(CONFIG_USB_GADGET_DWC2_OTG_PHY) += dwc2_udc_otg_phy.o
-obj-$(CONFIG_USB_GADGET_FOTG210) += fotg210.o
-obj-$(CONFIG_USB_GADGET_MAX3420) += max3420_udc.o
+0obj-$(CONFIG_USB_GADGET_MAX3420) += max3420_udc.o
 ifndef CONFIG_SPL_BUILD
 obj-$(CONFIG_USB_GADGET_DOWNLOAD) += g_dnl.o
 obj-$(CONFIG_USB_FUNCTION_THOR) += f_thor.o
diff --git a/drivers/usb/gadget/fotg210.c b/drivers/usb/gadget/fotg210.c
deleted file mode 100644
index af43433d88d..00000000000
--- a/drivers/usb/gadget/fotg210.c
+++ /dev/null
@@ -1,964 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Faraday USB 2.0 OTG Controller
- *
- * (C) Copyright 2010 Faraday Technology
- * Dante Su <dantesu@faraday-tech.com>
- */
-
-#include <common.h>
-#include <command.h>
-#include <config.h>
-#include <cpu_func.h>
-#include <log.h>
-#include <net.h>
-#include <malloc.h>
-#include <asm/io.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/usb/ch9.h>
-#include <linux/usb/gadget.h>
-
-#include <usb/fotg210.h>
-
-#define CFG_NUM_ENDPOINTS		4
-#define CFG_EP0_MAX_PACKET_SIZE	64
-#define CFG_EPX_MAX_PACKET_SIZE	512
-
-#define CFG_CMD_TIMEOUT (CONFIG_SYS_HZ >> 2) /* 250 ms */
-
-struct fotg210_chip;
-
-struct fotg210_ep {
-	struct usb_ep ep;
-
-	uint maxpacket;
-	uint id;
-	uint stopped;
-
-	struct list_head                      queue;
-	struct fotg210_chip                  *chip;
-	const struct usb_endpoint_descriptor *desc;
-};
-
-struct fotg210_request {
-	struct usb_request req;
-	struct list_head   queue;
-	struct fotg210_ep *ep;
-};
-
-struct fotg210_chip {
-	struct usb_gadget         gadget;
-	struct usb_gadget_driver *driver;
-	struct fotg210_regs      *regs;
-	uint8_t                   irq;
-	uint16_t                  addr;
-	int                       pullup;
-	enum usb_device_state     state;
-	struct fotg210_ep         ep[1 + CFG_NUM_ENDPOINTS];
-};
-
-static struct usb_endpoint_descriptor ep0_desc = {
-	.bLength = sizeof(struct usb_endpoint_descriptor),
-	.bDescriptorType = USB_DT_ENDPOINT,
-	.bEndpointAddress = USB_DIR_IN,
-	.bmAttributes = USB_ENDPOINT_XFER_CONTROL,
-};
-
-static inline int fifo_to_ep(struct fotg210_chip *chip, int id, int in)
-{
-	return (id < 0) ? 0 : ((id & 0x03) + 1);
-}
-
-static inline int ep_to_fifo(struct fotg210_chip *chip, int id)
-{
-	return (id <= 0) ? -1 : ((id - 1) & 0x03);
-}
-
-static inline int ep_reset(struct fotg210_chip *chip, uint8_t ep_addr)
-{
-	int ep = ep_addr & USB_ENDPOINT_NUMBER_MASK;
-	struct fotg210_regs *regs = chip->regs;
-
-	if (ep_addr & USB_DIR_IN) {
-		/* reset endpoint */
-		setbits_le32(&regs->iep[ep - 1], IEP_RESET);
-		mdelay(1);
-		clrbits_le32(&regs->iep[ep - 1], IEP_RESET);
-		/* clear endpoint stall */
-		clrbits_le32(&regs->iep[ep - 1], IEP_STALL);
-	} else {
-		/* reset endpoint */
-		setbits_le32(&regs->oep[ep - 1], OEP_RESET);
-		mdelay(1);
-		clrbits_le32(&regs->oep[ep - 1], OEP_RESET);
-		/* clear endpoint stall */
-		clrbits_le32(&regs->oep[ep - 1], OEP_STALL);
-	}
-
-	return 0;
-}
-
-static int fotg210_reset(struct fotg210_chip *chip)
-{
-	struct fotg210_regs *regs = chip->regs;
-	uint32_t i;
-
-	chip->state = USB_STATE_POWERED;
-
-	/* chip enable */
-	writel(DEVCTRL_EN, &regs->dev_ctrl);
-
-	/* device address reset */
-	chip->addr = 0;
-	writel(0, &regs->dev_addr);
-
-	/* set idle counter to 7ms */
-	writel(7, &regs->idle);
-
-	/* disable all interrupts */
-	writel(IMR_MASK, &regs->imr);
-	writel(GIMR_MASK, &regs->gimr);
-	writel(GIMR0_MASK, &regs->gimr0);
-	writel(GIMR1_MASK, &regs->gimr1);
-	writel(GIMR2_MASK, &regs->gimr2);
-
-	/* clear interrupts */
-	writel(ISR_MASK, &regs->isr);
-	writel(0, &regs->gisr);
-	writel(0, &regs->gisr0);
-	writel(0, &regs->gisr1);
-	writel(0, &regs->gisr2);
-
-	/* chip reset */
-	setbits_le32(&regs->dev_ctrl, DEVCTRL_RESET);
-	mdelay(10);
-	if (readl(&regs->dev_ctrl) & DEVCTRL_RESET) {
-		printf("fotg210: chip reset failed\n");
-		return -1;
-	}
-
-	/* CX FIFO reset */
-	setbits_le32(&regs->cxfifo, CXFIFO_CXFIFOCLR);
-	mdelay(10);
-	if (readl(&regs->cxfifo) & CXFIFO_CXFIFOCLR) {
-		printf("fotg210: ep0 fifo reset failed\n");
-		return -1;
-	}
-
-	/* create static ep-fifo map (EP1 <-> FIFO0, EP2 <-> FIFO1 ...) */
-	writel(EPMAP14_DEFAULT, &regs->epmap14);
-	writel(EPMAP58_DEFAULT, &regs->epmap58);
-	writel(FIFOMAP_DEFAULT, &regs->fifomap);
-	writel(0, &regs->fifocfg);
-	for (i = 0; i < 8; ++i) {
-		writel(CFG_EPX_MAX_PACKET_SIZE, &regs->iep[i]);
-		writel(CFG_EPX_MAX_PACKET_SIZE, &regs->oep[i]);
-	}
-
-	/* FIFO reset */
-	for (i = 0; i < 4; ++i) {
-		writel(FIFOCSR_RESET, &regs->fifocsr[i]);
-		mdelay(10);
-		if (readl(&regs->fifocsr[i]) & FIFOCSR_RESET) {
-			printf("fotg210: fifo%d reset failed\n", i);
-			return -1;
-		}
-	}
-
-	/* enable only device interrupt and triggered at level-high */
-	writel(IMR_IRQLH | IMR_HOST | IMR_OTG, &regs->imr);
-	writel(ISR_MASK, &regs->isr);
-	/* disable EP0 IN/OUT interrupt */
-	writel(GIMR0_CXOUT | GIMR0_CXIN, &regs->gimr0);
-	/* disable EPX IN+SPK+OUT interrupts */
-	writel(GIMR1_MASK, &regs->gimr1);
-	/* disable wakeup+idle+dma+zlp interrupts */
-	writel(GIMR2_WAKEUP | GIMR2_IDLE | GIMR2_DMAERR | GIMR2_DMAFIN
-		| GIMR2_ZLPRX | GIMR2_ZLPTX, &regs->gimr2);
-	/* enable all group interrupt */
-	writel(0, &regs->gimr);
-
-	/* suspend delay = 3 ms */
-	writel(3, &regs->idle);
-
-	/* turn-on device interrupts */
-	setbits_le32(&regs->dev_ctrl, DEVCTRL_GIRQ_EN);
-
-	return 0;
-}
-
-static inline int fotg210_cxwait(struct fotg210_chip *chip, uint32_t mask)
-{
-	struct fotg210_regs *regs = chip->regs;
-	int ret = -1;
-	ulong ts;
-
-	for (ts = get_timer(0); get_timer(ts) < CFG_CMD_TIMEOUT; ) {
-		if ((readl(&regs->cxfifo) & mask) != mask)
-			continue;
-		ret = 0;
-		break;
-	}
-
-	if (ret)
-		printf("fotg210: cx/ep0 timeout\n");
-
-	return ret;
-}
-
-static int fotg210_dma(struct fotg210_ep *ep, struct fotg210_request *req)
-{
-	struct fotg210_chip *chip = ep->chip;
-	struct fotg210_regs *regs = chip->regs;
-	uint32_t tmp, ts;
-	uint8_t *buf  = req->req.buf + req->req.actual;
-	uint32_t len  = req->req.length - req->req.actual;
-	int fifo = ep_to_fifo(chip, ep->id);
-	int ret = -EBUSY;
-
-	/* 1. init dma buffer */
-	if (len > ep->maxpacket)
-		len = ep->maxpacket;
-
-	/* 2. wait for dma ready (hardware) */
-	for (ts = get_timer(0); get_timer(ts) < CFG_CMD_TIMEOUT; ) {
-		if (!(readl(&regs->dma_ctrl) & DMACTRL_START)) {
-			ret = 0;
-			break;
-		}
-	}
-	if (ret) {
-		printf("fotg210: dma busy\n");
-		req->req.status = ret;
-		return ret;
-	}
-
-	/* 3. DMA target setup */
-	if (ep->desc->bEndpointAddress & USB_DIR_IN)
-		flush_dcache_range((ulong)buf, (ulong)buf + len);
-	else
-		invalidate_dcache_range((ulong)buf, (ulong)buf + len);
-
-	writel(virt_to_phys(buf), &regs->dma_addr);
-
-	if (ep->desc->bEndpointAddress & USB_DIR_IN) {
-		if (ep->id == 0) {
-			/* Wait until cx/ep0 fifo empty */
-			fotg210_cxwait(chip, CXFIFO_CXFIFOE);
-			udelay(1);
-			writel(DMAFIFO_CX, &regs->dma_fifo);
-		} else {
-			/* Wait until epx fifo empty */
-			fotg210_cxwait(chip, CXFIFO_FIFOE(fifo));
-			writel(DMAFIFO_FIFO(fifo), &regs->dma_fifo);
-		}
-		writel(DMACTRL_LEN(len) | DMACTRL_MEM2FIFO, &regs->dma_ctrl);
-	} else {
-		uint32_t blen;
-
-		if (ep->id == 0) {
-			writel(DMAFIFO_CX, &regs->dma_fifo);
-			do {
-				blen = CXFIFO_BYTES(readl(&regs->cxfifo));
-			} while (blen < len);
-		} else {
-			writel(DMAFIFO_FIFO(fifo), &regs->dma_fifo);
-			blen = FIFOCSR_BYTES(readl(&regs->fifocsr[fifo]));
-		}
-		len  = (len < blen) ? len : blen;
-		writel(DMACTRL_LEN(len) | DMACTRL_FIFO2MEM, &regs->dma_ctrl);
-	}
-
-	/* 4. DMA start */
-	setbits_le32(&regs->dma_ctrl, DMACTRL_START);
-
-	/* 5. DMA wait */
-	ret = -EBUSY;
-	for (ts = get_timer(0); get_timer(ts) < CFG_CMD_TIMEOUT; ) {
-		tmp = readl(&regs->gisr2);
-		/* DMA complete */
-		if (tmp & GISR2_DMAFIN) {
-			ret = 0;
-			break;
-		}
-		/* DMA error */
-		if (tmp & GISR2_DMAERR) {
-			printf("fotg210: dma error\n");
-			break;
-		}
-		/* resume, suspend, reset */
-		if (tmp & (GISR2_RESUME | GISR2_SUSPEND | GISR2_RESET)) {
-			printf("fotg210: dma reset by host\n");
-			break;
-		}
-	}
-
-	/* 7. DMA target reset */
-	if (ret)
-		writel(DMACTRL_ABORT | DMACTRL_CLRFF, &regs->dma_ctrl);
-
-	writel(0, &regs->gisr2);
-	writel(0, &regs->dma_fifo);
-
-	req->req.status = ret;
-	if (!ret)
-		req->req.actual += len;
-	else
-		printf("fotg210: ep%d dma error(code=%d)\n", ep->id, ret);
-
-	return len;
-}
-
-/*
- * result of setup packet
- */
-#define CX_IDLE		0
-#define CX_FINISH	1
-#define CX_STALL	2
-
-static void fotg210_setup(struct fotg210_chip *chip)
-{
-	int id, ret = CX_IDLE;
-	uint32_t tmp[2];
-	struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)tmp;
-	struct fotg210_regs *regs = chip->regs;
-
-	/*
-	 * If this is the first Cx 8 byte command,
-	 * we can now query USB mode (high/full speed; USB 2.0/USB 1.0)
-	 */
-	if (chip->state == USB_STATE_POWERED) {
-		chip->state = USB_STATE_DEFAULT;
-		if (readl(&regs->otgcsr) & OTGCSR_DEV_B) {
-			/* Mini-B */
-			if (readl(&regs->dev_ctrl) & DEVCTRL_HS) {
-				puts("fotg210: HS\n");
-				chip->gadget.speed = USB_SPEED_HIGH;
-				/* SOF mask timer = 1100 ticks */
-				writel(SOFMTR_TMR(1100), &regs->sof_mtr);
-			} else {
-				puts("fotg210: FS\n");
-				chip->gadget.speed = USB_SPEED_FULL;
-				/* SOF mask timer = 10000 ticks */
-				writel(SOFMTR_TMR(10000), &regs->sof_mtr);
-			}
-		} else {
-			printf("fotg210: mini-A?\n");
-		}
-	}
-
-	/* switch data port to ep0 */
-	writel(DMAFIFO_CX, &regs->dma_fifo);
-	/* fetch 8 bytes setup packet */
-	tmp[0] = readl(&regs->ep0_data);
-	tmp[1] = readl(&regs->ep0_data);
-	/* release data port */
-	writel(0, &regs->dma_fifo);
-
-	if (req->bRequestType & USB_DIR_IN)
-		ep0_desc.bEndpointAddress = USB_DIR_IN;
-	else
-		ep0_desc.bEndpointAddress = USB_DIR_OUT;
-
-	ret = CX_IDLE;
-
-	if ((req->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
-		switch (req->bRequest) {
-		case USB_REQ_SET_CONFIGURATION:
-			debug("fotg210: set_cfg(%d)\n", req->wValue & 0x00FF);
-			if (!(req->wValue & 0x00FF)) {
-				chip->state = USB_STATE_ADDRESS;
-				writel(chip->addr, &regs->dev_addr);
-			} else {
-				chip->state = USB_STATE_CONFIGURED;
-				writel(chip->addr | DEVADDR_CONF,
-					&regs->dev_addr);
-			}
-			ret = CX_IDLE;
-			break;
-
-		case USB_REQ_SET_ADDRESS:
-			debug("fotg210: set_addr(0x%04X)\n", req->wValue);
-			chip->state = USB_STATE_ADDRESS;
-			chip->addr  = req->wValue & DEVADDR_ADDR_MASK;
-			ret = CX_FINISH;
-			writel(chip->addr, &regs->dev_addr);
-			break;
-
-		case USB_REQ_CLEAR_FEATURE:
-			debug("fotg210: clr_feature(%d, %d)\n",
-				req->bRequestType & 0x03, req->wValue);
-			switch (req->wValue) {
-			case 0:    /* [Endpoint] halt */
-				ep_reset(chip, req->wIndex);
-				ret = CX_FINISH;
-				break;
-			case 1:    /* [Device] remote wake-up */
-			case 2:    /* [Device] test mode */
-			default:
-				ret = CX_STALL;
-				break;
-			}
-			break;
-
-		case USB_REQ_SET_FEATURE:
-			debug("fotg210: set_feature(%d, %d)\n",
-				req->wValue, req->wIndex & 0xf);
-			switch (req->wValue) {
-			case 0:    /* Endpoint Halt */
-				id = req->wIndex & 0xf;
-				setbits_le32(&regs->iep[id - 1], IEP_STALL);
-				setbits_le32(&regs->oep[id - 1], OEP_STALL);
-				ret = CX_FINISH;
-				break;
-			case 1:    /* Remote Wakeup */
-			case 2:    /* Test Mode */
-			default:
-				ret = CX_STALL;
-				break;
-			}
-			break;
-
-		case USB_REQ_GET_STATUS:
-			debug("fotg210: get_status\n");
-			ret = CX_STALL;
-			break;
-
-		case USB_REQ_SET_DESCRIPTOR:
-			debug("fotg210: set_descriptor\n");
-			ret = CX_STALL;
-			break;
-
-		case USB_REQ_SYNCH_FRAME:
-			debug("fotg210: sync frame\n");
-			ret = CX_STALL;
-			break;
-		}
-	} /* if ((req->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) */
-
-	if (ret == CX_IDLE && chip->driver->setup) {
-		if (chip->driver->setup(&chip->gadget, req) < 0)
-			ret = CX_STALL;
-		else
-			ret = CX_FINISH;
-	}
-
-	switch (ret) {
-	case CX_FINISH:
-		setbits_le32(&regs->cxfifo, CXFIFO_CXFIN);
-		break;
-
-	case CX_STALL:
-		setbits_le32(&regs->cxfifo, CXFIFO_CXSTALL | CXFIFO_CXFIN);
-		printf("fotg210: cx_stall!\n");
-		break;
-
-	case CX_IDLE:
-		debug("fotg210: cx_idle?\n");
-	default:
-		break;
-	}
-}
-
-/*
- * fifo - FIFO id
- * zlp  - zero length packet
- */
-static void fotg210_recv(struct fotg210_chip *chip, int ep_id)
-{
-	struct fotg210_regs *regs = chip->regs;
-	struct fotg210_ep *ep = chip->ep + ep_id;
-	struct fotg210_request *req;
-	int len;
-
-	if (ep->stopped || (ep->desc->bEndpointAddress & USB_DIR_IN)) {
-		printf("fotg210: ep%d recv, invalid!\n", ep->id);
-		return;
-	}
-
-	if (list_empty(&ep->queue)) {
-		printf("fotg210: ep%d recv, drop!\n", ep->id);
-		return;
-	}
-
-	req = list_first_entry(&ep->queue, struct fotg210_request, queue);
-	len = fotg210_dma(ep, req);
-	if (len < ep->ep.maxpacket || req->req.length <= req->req.actual) {
-		list_del_init(&req->queue);
-		if (req->req.complete)
-			req->req.complete(&ep->ep, &req->req);
-	}
-
-	if (ep->id > 0 && list_empty(&ep->queue)) {
-		setbits_le32(&regs->gimr1,
-			GIMR1_FIFO_RX(ep_to_fifo(chip, ep->id)));
-	}
-}
-
-/*
- * USB Gadget Layer
- */
-static int fotg210_ep_enable(
-	struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
-{
-	struct fotg210_ep *ep = container_of(_ep, struct fotg210_ep, ep);
-	struct fotg210_chip *chip = ep->chip;
-	struct fotg210_regs *regs = chip->regs;
-	int id = ep_to_fifo(chip, ep->id);
-	int in = (desc->bEndpointAddress & USB_DIR_IN) ? 1 : 0;
-
-	if (!_ep || !desc
-		|| desc->bDescriptorType != USB_DT_ENDPOINT
-		|| le16_to_cpu(desc->wMaxPacketSize) == 0) {
-		printf("fotg210: bad ep or descriptor\n");
-		return -EINVAL;
-	}
-
-	ep->desc = desc;
-	ep->stopped = 0;
-
-	if (in)
-		setbits_le32(&regs->fifomap, FIFOMAP(id, FIFOMAP_IN));
-
-	switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
-	case USB_ENDPOINT_XFER_CONTROL:
-		return -EINVAL;
-
-	case USB_ENDPOINT_XFER_ISOC:
-		setbits_le32(&regs->fifocfg,
-			FIFOCFG(id, FIFOCFG_EN | FIFOCFG_ISOC));
-		break;
-
-	case USB_ENDPOINT_XFER_BULK:
-		setbits_le32(&regs->fifocfg,
-			FIFOCFG(id, FIFOCFG_EN | FIFOCFG_BULK));
-		break;
-
-	case USB_ENDPOINT_XFER_INT:
-		setbits_le32(&regs->fifocfg,
-			FIFOCFG(id, FIFOCFG_EN | FIFOCFG_INTR));
-		break;
-	}
-
-	return 0;
-}
-
-static int fotg210_ep_disable(struct usb_ep *_ep)
-{
-	struct fotg210_ep *ep = container_of(_ep, struct fotg210_ep, ep);
-	struct fotg210_chip *chip = ep->chip;
-	struct fotg210_regs *regs = chip->regs;
-	int id = ep_to_fifo(chip, ep->id);
-
-	ep->desc = NULL;
-	ep->stopped = 1;
-
-	clrbits_le32(&regs->fifocfg, FIFOCFG(id, FIFOCFG_CFG_MASK));
-	clrbits_le32(&regs->fifomap, FIFOMAP(id, FIFOMAP_DIR_MASK));
-
-	return 0;
-}
-
-static struct usb_request *fotg210_ep_alloc_request(
-	struct usb_ep *_ep, gfp_t gfp_flags)
-{
-	struct fotg210_request *req = malloc(sizeof(*req));
-
-	if (req) {
-		memset(req, 0, sizeof(*req));
-		INIT_LIST_HEAD(&req->queue);
-	}
-	return &req->req;
-}
-
-static void fotg210_ep_free_request(
-	struct usb_ep *_ep, struct usb_request *_req)
-{
-	struct fotg210_request *req;
-
-	req = container_of(_req, struct fotg210_request, req);
-	free(req);
-}
-
-static int fotg210_ep_queue(
-	struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
-{
-	struct fotg210_ep *ep = container_of(_ep, struct fotg210_ep, ep);
-	struct fotg210_chip *chip = ep->chip;
-	struct fotg210_regs *regs = chip->regs;
-	struct fotg210_request *req;
-
-	req = container_of(_req, struct fotg210_request, req);
-	if (!_req || !_req->complete || !_req->buf
-		|| !list_empty(&req->queue)) {
-		printf("fotg210: invalid request to ep%d\n", ep->id);
-		return -EINVAL;
-	}
-
-	if (!chip || chip->state == USB_STATE_SUSPENDED) {
-		printf("fotg210: request while chip suspended\n");
-		return -EINVAL;
-	}
-
-	req->req.actual = 0;
-	req->req.status = -EINPROGRESS;
-
-	if (req->req.length == 0) {
-		req->req.status = 0;
-		if (req->req.complete)
-			req->req.complete(&ep->ep, &req->req);
-		return 0;
-	}
-
-	if (ep->id == 0) {
-		do {
-			int len = fotg210_dma(ep, req);
-			if (len < ep->ep.maxpacket)
-				break;
-			if (ep->desc->bEndpointAddress & USB_DIR_IN)
-				udelay(100);
-		} while (req->req.length > req->req.actual);
-	} else {
-		if (ep->desc->bEndpointAddress & USB_DIR_IN) {
-			do {
-				int len = fotg210_dma(ep, req);
-				if (len < ep->ep.maxpacket)
-					break;
-			} while (req->req.length > req->req.actual);
-		} else {
-			list_add_tail(&req->queue, &ep->queue);
-			clrbits_le32(&regs->gimr1,
-				GIMR1_FIFO_RX(ep_to_fifo(chip, ep->id)));
-		}
-	}
-
-	if (ep->id == 0 || (ep->desc->bEndpointAddress & USB_DIR_IN)) {
-		if (req->req.complete)
-			req->req.complete(&ep->ep, &req->req);
-	}
-
-	return 0;
-}
-
-static int fotg210_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
-{
-	struct fotg210_ep *ep = container_of(_ep, struct fotg210_ep, ep);
-	struct fotg210_request *req;
-
-	/* make sure it's actually queued on this endpoint */
-	list_for_each_entry(req, &ep->queue, queue) {
-		if (&req->req == _req)
-			break;
-	}
-	if (&req->req != _req)
-		return -EINVAL;
-
-	/* remove the request */
-	list_del_init(&req->queue);
-
-	/* update status & invoke complete callback */
-	if (req->req.status == -EINPROGRESS) {
-		req->req.status = -ECONNRESET;
-		if (req->req.complete)
-			req->req.complete(_ep, &req->req);
-	}
-
-	return 0;
-}
-
-static int fotg210_ep_halt(struct usb_ep *_ep, int halt)
-{
-	struct fotg210_ep *ep = container_of(_ep, struct fotg210_ep, ep);
-	struct fotg210_chip *chip = ep->chip;
-	struct fotg210_regs *regs = chip->regs;
-	int ret = -1;
-
-	debug("fotg210: ep%d halt=%d\n", ep->id, halt);
-
-	/* Endpoint STALL */
-	if (ep->id > 0 && ep->id <= CFG_NUM_ENDPOINTS) {
-		if (halt) {
-			/* wait until all ep fifo empty */
-			fotg210_cxwait(chip, 0xf00);
-			/* stall */
-			if (ep->desc->bEndpointAddress & USB_DIR_IN) {
-				setbits_le32(&regs->iep[ep->id - 1],
-					IEP_STALL);
-			} else {
-				setbits_le32(&regs->oep[ep->id - 1],
-					OEP_STALL);
-			}
-		} else {
-			if (ep->desc->bEndpointAddress & USB_DIR_IN) {
-				clrbits_le32(&regs->iep[ep->id - 1],
-					IEP_STALL);
-			} else {
-				clrbits_le32(&regs->oep[ep->id - 1],
-					OEP_STALL);
-			}
-		}
-		ret = 0;
-	}
-
-	return ret;
-}
-
-/*
- * activate/deactivate link with host.
- */
-static void pullup(struct fotg210_chip *chip, int is_on)
-{
-	struct fotg210_regs *regs = chip->regs;
-
-	if (is_on) {
-		if (!chip->pullup) {
-			chip->state = USB_STATE_POWERED;
-			chip->pullup = 1;
-			/* enable the chip */
-			setbits_le32(&regs->dev_ctrl, DEVCTRL_EN);
-			/* clear unplug bit (BIT0) */
-			clrbits_le32(&regs->phy_tmsr, PHYTMSR_UNPLUG);
-		}
-	} else {
-		chip->state = USB_STATE_NOTATTACHED;
-		chip->pullup = 0;
-		chip->addr = 0;
-		writel(chip->addr, &regs->dev_addr);
-		/* set unplug bit (BIT0) */
-		setbits_le32(&regs->phy_tmsr, PHYTMSR_UNPLUG);
-		/* disable the chip */
-		clrbits_le32(&regs->dev_ctrl, DEVCTRL_EN);
-	}
-}
-
-static int fotg210_pullup(struct usb_gadget *_gadget, int is_on)
-{
-	struct fotg210_chip *chip;
-
-	chip = container_of(_gadget, struct fotg210_chip, gadget);
-
-	debug("fotg210: pullup=%d\n", is_on);
-
-	pullup(chip, is_on);
-
-	return 0;
-}
-
-static int fotg210_get_frame(struct usb_gadget *_gadget)
-{
-	struct fotg210_chip *chip;
-	struct fotg210_regs *regs;
-
-	chip = container_of(_gadget, struct fotg210_chip, gadget);
-	regs = chip->regs;
-
-	return SOFFNR_FNR(readl(&regs->sof_fnr));
-}
-
-static struct usb_gadget_ops fotg210_gadget_ops = {
-	.get_frame = fotg210_get_frame,
-	.pullup = fotg210_pullup,
-};
-
-static struct usb_ep_ops fotg210_ep_ops = {
-	.enable         = fotg210_ep_enable,
-	.disable        = fotg210_ep_disable,
-	.queue          = fotg210_ep_queue,
-	.dequeue        = fotg210_ep_dequeue,
-	.set_halt       = fotg210_ep_halt,
-	.alloc_request  = fotg210_ep_alloc_request,
-	.free_request   = fotg210_ep_free_request,
-};
-
-static struct fotg210_chip controller = {
-	.regs = (void __iomem *)CONFIG_FOTG210_BASE,
-	.gadget = {
-		.name = "fotg210_udc",
-		.ops = &fotg210_gadget_ops,
-		.ep0 = &controller.ep[0].ep,
-		.speed = USB_SPEED_UNKNOWN,
-		.is_dualspeed = 1,
-		.is_otg = 0,
-		.is_a_peripheral = 0,
-		.b_hnp_enable = 0,
-		.a_hnp_support = 0,
-		.a_alt_hnp_support = 0,
-	},
-	.ep[0] = {
-		.id = 0,
-		.ep = {
-			.name  = "ep0",
-			.ops   = &fotg210_ep_ops,
-		},
-		.desc      = &ep0_desc,
-		.chip      = &controller,
-		.maxpacket = CFG_EP0_MAX_PACKET_SIZE,
-	},
-	.ep[1] = {
-		.id = 1,
-		.ep = {
-			.name  = "ep1",
-			.ops   = &fotg210_ep_ops,
-		},
-		.chip      = &controller,
-		.maxpacket = CFG_EPX_MAX_PACKET_SIZE,
-	},
-	.ep[2] = {
-		.id = 2,
-		.ep = {
-			.name  = "ep2",
-			.ops   = &fotg210_ep_ops,
-		},
-		.chip      = &controller,
-		.maxpacket = CFG_EPX_MAX_PACKET_SIZE,
-	},
-	.ep[3] = {
-		.id = 3,
-		.ep = {
-			.name  = "ep3",
-			.ops   = &fotg210_ep_ops,
-		},
-		.chip      = &controller,
-		.maxpacket = CFG_EPX_MAX_PACKET_SIZE,
-	},
-	.ep[4] = {
-		.id = 4,
-		.ep = {
-			.name  = "ep4",
-			.ops   = &fotg210_ep_ops,
-		},
-		.chip      = &controller,
-		.maxpacket = CFG_EPX_MAX_PACKET_SIZE,
-	},
-};
-
-int usb_gadget_handle_interrupts(int index)
-{
-	struct fotg210_chip *chip = &controller;
-	struct fotg210_regs *regs = chip->regs;
-	uint32_t id, st, isr, gisr;
-
-	isr  = readl(&regs->isr) & (~readl(&regs->imr));
-	gisr = readl(&regs->gisr) & (~readl(&regs->gimr));
-	if (!(isr & ISR_DEV) || !gisr)
-		return 0;
-
-	writel(ISR_DEV, &regs->isr);
-
-	/* CX interrupts */
-	if (gisr & GISR_GRP0) {
-		st = readl(&regs->gisr0);
-		/*
-		 * Write 1 and then 0 works for both W1C & RW.
-		 *
-		 * HW v1.11.0+: It's a W1C register (write 1 clear)
-		 * HW v1.10.0-: It's a R/W register (write 0 clear)
-		 */
-		writel(st & GISR0_CXABORT, &regs->gisr0);
-		writel(0, &regs->gisr0);
-
-		if (st & GISR0_CXERR)
-			printf("fotg210: cmd error\n");
-
-		if (st & GISR0_CXABORT)
-			printf("fotg210: cmd abort\n");
-
-		if (st & GISR0_CXSETUP)    /* setup */
-			fotg210_setup(chip);
-		else if (st & GISR0_CXEND) /* command finish */
-			setbits_le32(&regs->cxfifo, CXFIFO_CXFIN);
-	}
-
-	/* FIFO interrupts */
-	if (gisr & GISR_GRP1) {
-		st = readl(&regs->gisr1);
-		for (id = 0; id < 4; ++id) {
-			if (st & GISR1_RX_FIFO(id))
-				fotg210_recv(chip, fifo_to_ep(chip, id, 0));
-		}
-	}
-
-	/* Device Status Interrupts */
-	if (gisr & GISR_GRP2) {
-		st = readl(&regs->gisr2);
-		/*
-		 * Write 1 and then 0 works for both W1C & RW.
-		 *
-		 * HW v1.11.0+: It's a W1C register (write 1 clear)
-		 * HW v1.10.0-: It's a R/W register (write 0 clear)
-		 */
-		writel(st, &regs->gisr2);
-		writel(0, &regs->gisr2);
-
-		if (st & GISR2_RESET)
-			printf("fotg210: reset by host\n");
-		else if (st & GISR2_SUSPEND)
-			printf("fotg210: suspend/removed\n");
-		else if (st & GISR2_RESUME)
-			printf("fotg210: resume\n");
-
-		/* Errors */
-		if (st & GISR2_ISOCERR)
-			printf("fotg210: iso error\n");
-		if (st & GISR2_ISOCABT)
-			printf("fotg210: iso abort\n");
-		if (st & GISR2_DMAERR)
-			printf("fotg210: dma error\n");
-	}
-
-	return 0;
-}
-
-int usb_gadget_register_driver(struct usb_gadget_driver *driver)
-{
-	int i, ret = 0;
-	struct fotg210_chip *chip = &controller;
-
-	if (!driver    || !driver->bind || !driver->setup) {
-		puts("fotg210: bad parameter.\n");
-		return -EINVAL;
-	}
-
-	INIT_LIST_HEAD(&chip->gadget.ep_list);
-	for (i = 0; i < CFG_NUM_ENDPOINTS + 1; ++i) {
-		struct fotg210_ep *ep = chip->ep + i;
-
-		ep->ep.maxpacket = ep->maxpacket;
-		INIT_LIST_HEAD(&ep->queue);
-
-		if (ep->id == 0) {
-			ep->stopped = 0;
-		} else {
-			ep->stopped = 1;
-			list_add_tail(&ep->ep.ep_list, &chip->gadget.ep_list);
-		}
-	}
-
-	if (fotg210_reset(chip)) {
-		puts("fotg210: reset failed.\n");
-		return -EINVAL;
-	}
-
-	ret = driver->bind(&chip->gadget);
-	if (ret) {
-		debug("fotg210: driver->bind() returned %d\n", ret);
-		return ret;
-	}
-	chip->driver = driver;
-
-	return ret;
-}
-
-int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
-{
-	struct fotg210_chip *chip = &controller;
-
-	driver->unbind(&chip->gadget);
-	chip->driver = NULL;
-
-	pullup(chip, 0);
-
-	return 0;
-}
diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h
index abc6dc7f89f..98156c312d2 100644
--- a/drivers/usb/gadget/gadget_chips.h
+++ b/drivers/usb/gadget/gadget_chips.h
@@ -117,12 +117,6 @@
 #define gadget_is_ci(g)        0
 #endif
 
-#ifdef CONFIG_USB_GADGET_FOTG210
-#define gadget_is_fotg210(g)        (!strcmp("fotg210_udc", (g)->name))
-#else
-#define gadget_is_fotg210(g)        0
-#endif
-
 #ifdef CONFIG_USB_DWC3_GADGET
 #define gadget_is_dwc3(g)        (!strcmp("dwc3-gadget", (g)->name))
 #else
@@ -202,8 +196,6 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
 		return 0x20;
 	else if (gadget_is_ci(gadget))
 		return 0x21;
-	else if (gadget_is_fotg210(gadget))
-		return 0x22;
 	else if (gadget_is_dwc3(gadget))
 		return 0x23;
 	else if (gadget_is_cdns3(gadget))