Revert "usb: gadget: net2280: Add support for PLX USB338X"

This reverts commit c4128cac3557ddd5fa972cb6511c426cd94a7ccd.

This should come through Felipe's tree first, and there was a bunch of
other patches that are needed after this one as well that I didn't have.

Cc: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 85 insertions, 1030 deletions

diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index 87789c9bf7fe..300b3a71383b 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -18,9 +18,6 @@
  * hint to completely eliminate some IRQs, if a later IRQ is guaranteed
  * and DMA chaining is enabled.
  *
- * MSI is enabled by default.  The legacy IRQ is used if MSI couldn't
- * be enabled.
- *
  * Note that almost all the errata workarounds here are only needed for
  * rev1 chips.  Rev1a silicon (0110) fixes almost all of them.
  */
@@ -28,14 +25,10 @@
 /*
  * Copyright (C) 2003 David Brownell
  * Copyright (C) 2003-2005 PLX Technology, Inc.
- * Copyright (C) 2014 Ricardo Ribalda - Qtechnology/AS
  *
  * Modified Seth Levy 2005 PLX Technology, Inc. to provide compatibility
  *	with 2282 chip
  *
- * Modified Ricardo Ribalda Qtechnology AS  to provide compatibility
- *	with usb 338x chip. Based on PLX driver
- *
  * 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
@@ -68,8 +61,9 @@
 #include <asm/irq.h>
 #include <asm/unaligned.h>
 
-#define	DRIVER_DESC		"PLX NET228x/USB338x USB Peripheral Controller"
-#define	DRIVER_VERSION		"2005 Sept 27/v3.0"
+
+#define	DRIVER_DESC		"PLX NET228x USB Peripheral Controller"
+#define	DRIVER_VERSION		"2005 Sept 27"
 
 #define	EP_DONTUSE		13	/* nonzero */
 
@@ -79,12 +73,11 @@
 static const char driver_name [] = "net2280";
 static const char driver_desc [] = DRIVER_DESC;
 
-static const u32 ep_bit[9] = { 0, 17, 2, 19, 4, 1, 18, 3, 20 };
 static const char ep0name [] = "ep0";
 static const char *const ep_name [] = {
 	ep0name,
 	"ep-a", "ep-b", "ep-c", "ep-d",
-	"ep-e", "ep-f", "ep-g", "ep-h",
+	"ep-e", "ep-f",
 };
 
 /* use_dma -- general goodness, fewer interrupts, less cpu load (vs PIO)
@@ -97,12 +90,11 @@ static const char *const ep_name [] = {
  */
 static bool use_dma = 1;
 static bool use_dma_chaining = 0;
-static bool use_msi = 1;
 
 /* "modprobe net2280 use_dma=n" etc */
 module_param (use_dma, bool, S_IRUGO);
 module_param (use_dma_chaining, bool, S_IRUGO);
-module_param(use_msi, bool, S_IRUGO);
+
 
 /* mode 0 == ep-{a,b,c,d} 1K fifo each
  * mode 1 == ep-{a,b} 2K fifo each, ep-{c,d} unavailable
@@ -156,9 +148,6 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
 	struct net2280_ep	*ep;
 	u32			max, tmp;
 	unsigned long		flags;
-	static const u32 ep_key[9] = { 1, 0, 1, 0, 1, 1, 0, 1, 0 };
-	static const u32 ep_enhanced[9] = { 0x10, 0x60, 0x30, 0x80,
-					  0x50, 0x20, 0x70, 0x40, 0x90 };
 
 	ep = container_of (_ep, struct net2280_ep, ep);
 	if (!_ep || !desc || ep->desc || _ep->name == ep0name
@@ -172,20 +161,11 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
 	if ((desc->bEndpointAddress & 0x0f) == EP_DONTUSE)
 		return -EDOM;
 
-	if (dev->pdev->vendor == 0x10b5) {
-		if ((desc->bEndpointAddress & 0x0f) >= 0x0c)
-			return -EDOM;
-		ep->is_in = !!usb_endpoint_dir_in(desc);
-		if (dev->enhanced_mode && ep->is_in && ep_key[ep->num])
-			return -EINVAL;
-	}
-
 	/* sanity check ep-e/ep-f since their fifos are small */
 	max = usb_endpoint_maxp (desc) & 0x1fff;
-	if (ep->num > 4 && max > 64 && (dev->pdev->vendor == 0x17cc))
+	if (ep->num > 4 && max > 64)
 		return -ERANGE;
 
-
 	spin_lock_irqsave (&dev->lock, flags);
 	_ep->maxpacket = max & 0x7ff;
 	ep->desc = desc;
@@ -196,8 +176,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
 	ep->out_overflow = 0;
 
 	/* set speed-dependent max packet; may kick in high bandwidth */
-	set_idx_reg(dev->regs, (dev->enhanced_mode) ? ep_enhanced[ep->num]
-					: REG_EP_MAXPKT(dev, ep->num), max);
+	set_idx_reg (dev->regs, REG_EP_MAXPKT (dev, ep->num), max);
 
 	/* FIFO lines can't go to different packets.  PIO is ok, so
 	 * use it instead of troublesome (non-bulk) multi-packet DMA.
@@ -220,43 +199,23 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
 				&ep->regs->ep_rsp);
 	} else if (tmp == USB_ENDPOINT_XFER_BULK) {
 		/* catch some particularly blatant driver bugs */
-		if ((dev->gadget.speed == USB_SPEED_SUPER && max != 1024) ||
-		    (dev->gadget.speed == USB_SPEED_HIGH && max != 512) ||
-		    (dev->gadget.speed == USB_SPEED_FULL && max > 64)) {
-			spin_unlock_irqrestore(&dev->lock, flags);
+		if ((dev->gadget.speed == USB_SPEED_HIGH
+					&& max != 512)
+				|| (dev->gadget.speed == USB_SPEED_FULL
+					&& max > 64)) {
+			spin_unlock_irqrestore (&dev->lock, flags);
 			return -ERANGE;
 		}
 	}
 	ep->is_iso = (tmp == USB_ENDPOINT_XFER_ISOC) ? 1 : 0;
-	/* Enable this endpoint */
-	if (dev->pdev->vendor == 0x17cc) {
-		tmp <<= ENDPOINT_TYPE;
-		tmp |= desc->bEndpointAddress;
-		/* default full fifo lines */
-		tmp |= (4 << ENDPOINT_BYTE_COUNT);
-		tmp |= 1 << ENDPOINT_ENABLE;
-		ep->is_in = (tmp & USB_DIR_IN) != 0;
-	} else {
-		/* In Legacy mode, only OUT endpoints are used */
-		if (dev->enhanced_mode && ep->is_in) {
-			tmp <<= IN_ENDPOINT_TYPE;
-			tmp |= (1 << IN_ENDPOINT_ENABLE);
-			/* Not applicable to Legacy */
-			tmp |= (1 << ENDPOINT_DIRECTION);
-		} else {
-			tmp <<= OUT_ENDPOINT_TYPE;
-			tmp |= (1 << OUT_ENDPOINT_ENABLE);
-			tmp |= (ep->is_in << ENDPOINT_DIRECTION);
-		}
-
-		tmp |= usb_endpoint_num(desc);
-		tmp |= (ep->ep.maxburst << MAX_BURST_SIZE);
-	}
-
-	/* Make sure all the registers are written before ep_rsp*/
-	wmb();
+	tmp <<= ENDPOINT_TYPE;
+	tmp |= desc->bEndpointAddress;
+	tmp |= (4 << ENDPOINT_BYTE_COUNT);	/* default full fifo lines */
+	tmp |= 1 << ENDPOINT_ENABLE;
+	wmb ();
 
 	/* for OUT transfers, block the rx fifo until a read is posted */
+	ep->is_in = (tmp & USB_DIR_IN) != 0;
 	if (!ep->is_in)
 		writel ((1 << SET_NAK_OUT_PACKETS), &ep->regs->ep_rsp);
 	else if (dev->pdev->device != 0x2280) {
@@ -267,13 +226,11 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
 			| (1 << CLEAR_NAK_OUT_PACKETS_MODE), &ep->regs->ep_rsp);
 	}
 
-	writel(tmp, &ep->cfg->ep_cfg);
+	writel (tmp, &ep->regs->ep_cfg);
 
 	/* enable irqs */
 	if (!ep->dma) {				/* pio, per-packet */
-		tmp = (dev->pdev->vendor == 0x17cc)?(1 << ep->num)
-						   : (1 << ep_bit[ep->num]);
-		tmp |= readl(&dev->regs->pciirqenb0);
+		tmp = (1 << ep->num) | readl (&dev->regs->pciirqenb0);
 		writel (tmp, &dev->regs->pciirqenb0);
 
 		tmp = (1 << DATA_PACKET_RECEIVED_INTERRUPT_ENABLE)
@@ -294,10 +251,8 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
 			tmp = (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT_ENABLE);
 			writel (tmp, &ep->regs->ep_irqenb);
 
-			tmp = (dev->pdev->vendor == 0x17cc)?(1 << ep->num)
-						: (1 << ep_bit[ep->num]);
-			tmp |= readl(&dev->regs->pciirqenb0);
-			writel(tmp, &dev->regs->pciirqenb0);
+			tmp = (1 << ep->num) | readl (&dev->regs->pciirqenb0);
+			writel (tmp, &dev->regs->pciirqenb0);
 		}
 	}
 
@@ -331,8 +286,7 @@ static int handshake (u32 __iomem *ptr, u32 mask, u32 done, int usec)
 
 static const struct usb_ep_ops net2280_ep_ops;
 
-static void ep_reset_228x(struct net2280_regs __iomem *regs,
-			  struct net2280_ep *ep)
+static void ep_reset (struct net2280_regs __iomem *regs, struct net2280_ep *ep)
 {
 	u32		tmp;
 
@@ -407,55 +361,6 @@ static void ep_reset_228x(struct net2280_regs __iomem *regs,
 	/* fifo size is handled separately */
 }
 
-static void ep_reset_338x(struct net2280_regs __iomem *regs,
-					struct net2280_ep *ep)
-{
-	u32 tmp, dmastat;
-
-	ep->desc = NULL;
-	INIT_LIST_HEAD(&ep->queue);
-
-	usb_ep_set_maxpacket_limit(&ep->ep, ~0);
-	ep->ep.ops = &net2280_ep_ops;
-
-	/* disable the dma, irqs, endpoint... */
-	if (ep->dma) {
-		writel(0, &ep->dma->dmactl);
-		writel((1 << DMA_ABORT_DONE_INTERRUPT) |
-		       (1 << DMA_PAUSE_DONE_INTERRUPT) |
-		       (1 << DMA_SCATTER_GATHER_DONE_INTERRUPT) |
-		       (1 << DMA_TRANSACTION_DONE_INTERRUPT)
-		       /* | (1 << DMA_ABORT) */
-		       , &ep->dma->dmastat);
-
-		dmastat = readl(&ep->dma->dmastat);
-		if (dmastat == 0x5002) {
-			WARNING(ep->dev, "The dmastat return = %x!!\n",
-			       dmastat);
-			writel(0x5a, &ep->dma->dmastat);
-		}
-
-		tmp = readl(&regs->pciirqenb0);
-		tmp &= ~(1 << ep_bit[ep->num]);
-		writel(tmp, &regs->pciirqenb0);
-	} else {
-		if (ep->num < 5) {
-			tmp = readl(&regs->pciirqenb1);
-			tmp &= ~(1 << (8 + ep->num));	/* completion */
-			writel(tmp, &regs->pciirqenb1);
-		}
-	}
-	writel(0, &ep->regs->ep_irqenb);
-
-	writel((1 << SHORT_PACKET_OUT_DONE_INTERRUPT) |
-	       (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT) |
-	       (1 << FIFO_OVERFLOW) |
-	       (1 << DATA_PACKET_RECEIVED_INTERRUPT) |
-	       (1 << DATA_PACKET_TRANSMITTED_INTERRUPT) |
-	       (1 << DATA_OUT_PING_TOKEN_INTERRUPT) |
-	       (1 << DATA_IN_TOKEN_INTERRUPT), &ep->regs->ep_stat);
-}
-
 static void nuke (struct net2280_ep *);
 
 static int net2280_disable (struct usb_ep *_ep)
@@ -469,17 +374,13 @@ static int net2280_disable (struct usb_ep *_ep)
 
 	spin_lock_irqsave (&ep->dev->lock, flags);
 	nuke (ep);
-
-	if (ep->dev->pdev->vendor == 0x10b5)
-		ep_reset_338x(ep->dev->regs, ep);
-	else
-		ep_reset_228x(ep->dev->regs, ep);
+	ep_reset (ep->dev->regs, ep);
 
 	VDEBUG (ep->dev, "disabled %s %s\n",
 			ep->dma ? "dma" : "pio", _ep->name);
 
 	/* synch memory views with the device */
-	(void)readl(&ep->cfg->ep_cfg);
+	(void) readl (&ep->regs->ep_cfg);
 
 	if (use_dma && !ep->dma && ep->num >= 1 && ep->num <= 4)
 		ep->dma = &ep->dev->dma [ep->num - 1];
@@ -797,8 +698,6 @@ static void start_queue (struct net2280_ep *ep, u32 dmactl, u32 td_dma)
 	writel (readl (&dma->dmastat), &dma->dmastat);
 
 	writel (td_dma, &dma->dmadesc);
-	if (ep->dev->pdev->vendor == 0x10b5)
-		dmactl |= (0x01 << DMA_REQUEST_OUTSTANDING);
 	writel (dmactl, &dma->dmactl);
 
 	/* erratum 0116 workaround part 3:  pci arbiter away from net2280 */
@@ -873,21 +772,6 @@ static void start_dma (struct net2280_ep *ep, struct net2280_request *req)
 	start_queue (ep, tmp, req->td_dma);
 }
 
-static inline void resume_dma(struct net2280_ep *ep)
-{
-	writel(readl(&ep->dma->dmactl) | (1 << DMA_ENABLE), &ep->dma->dmactl);
-
-	ep->dma_started = true;
-}
-
-static inline void ep_stop_dma(struct net2280_ep *ep)
-{
-	writel(readl(&ep->dma->dmactl) & ~(1 << DMA_ENABLE), &ep->dma->dmactl);
-	spin_stop_dma(ep->dma);
-
-	ep->dma_started = false;
-}
-
 static inline void
 queue_dma (struct net2280_ep *ep, struct net2280_request *req, int valid)
 {
@@ -990,23 +874,8 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
 
 	/* kickstart this i/o queue? */
 	if (list_empty (&ep->queue) && !ep->stopped) {
-		/* DMA request while EP halted */
-		if (ep->dma &&
-		    (readl(&ep->regs->ep_rsp) & (1 << CLEAR_ENDPOINT_HALT)) &&
-			(dev->pdev->vendor == 0x10b5)) {
-			int valid = 1;
-			if (ep->is_in) {
-				int expect;
-				expect = likely(req->req.zero ||
-						((req->req.length %
-						  ep->ep.maxpacket) != 0));
-				if (expect != ep->in_fifo_validate)
-					valid = 0;
-			}
-			queue_dma(ep, req, valid);
-		}
 		/* use DMA if the endpoint supports it, else pio */
-		else if (ep->dma)
+		if (ep->dma)
 			start_dma (ep, req);
 		else {
 			/* maybe there's no control data, just status ack */
@@ -1124,8 +993,6 @@ static void scan_dma_completions (struct net2280_ep *ep)
 		} else if (!ep->is_in
 				&& (req->req.length % ep->ep.maxpacket) != 0) {
 			tmp = readl (&ep->regs->ep_stat);
-			if (ep->dev->pdev->vendor == 0x10b5)
-				return dma_done(ep, req, tmp, 0);
 
 			/* AVOID TROUBLE HERE by not issuing short reads from
 			 * your gadget driver.  That helps avoids errata 0121,
@@ -1212,7 +1079,7 @@ static void restart_dma (struct net2280_ep *ep)
 	start_queue (ep, dmactl, req->td_dma);
 }
 
-static void abort_dma_228x(struct net2280_ep *ep)
+static void abort_dma (struct net2280_ep *ep)
 {
 	/* abort the current transfer */
 	if (likely (!list_empty (&ep->queue))) {
@@ -1224,19 +1091,6 @@ static void abort_dma_228x(struct net2280_ep *ep)
 	scan_dma_completions (ep);
 }
 
-static void abort_dma_338x(struct net2280_ep *ep)
-{
-	writel((1 << DMA_ABORT), &ep->dma->dmastat);
-	spin_stop_dma(ep->dma);
-}
-
-static void abort_dma(struct net2280_ep *ep)
-{
-	if (ep->dev->pdev->vendor == 0x17cc)
-		return abort_dma_228x(ep);
-	return abort_dma_338x(ep);
-}
-
 /* dequeue ALL requests */
 static void nuke (struct net2280_ep *ep)
 {
@@ -1390,9 +1244,6 @@ net2280_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged)
 				ep->wedged = 1;
 		} else {
 			clear_halt (ep);
-			if (ep->dev->pdev->vendor == 0x10b5 &&
-				!list_empty(&ep->queue) && ep->td_dma)
-					restart_dma(ep);
 			ep->wedged = 0;
 		}
 		(void) readl (&ep->regs->ep_rsp);
@@ -1516,13 +1367,10 @@ static int net2280_set_selfpowered (struct usb_gadget *_gadget, int value)
 
 	spin_lock_irqsave (&dev->lock, flags);
 	tmp = readl (&dev->usb->usbctl);
-	if (value) {
+	if (value)
 		tmp |= (1 << SELF_POWERED_STATUS);
-		dev->selfpowered = 1;
-	} else {
+	else
 		tmp &= ~(1 << SELF_POWERED_STATUS);
-		dev->selfpowered = 0;
-	}
 	writel (tmp, &dev->usb->usbctl);
 	spin_unlock_irqrestore (&dev->lock, flags);
 
@@ -1656,14 +1504,14 @@ static ssize_t registers_show(struct device *_dev,
 	/* DMA Control Registers */
 
 	/* Configurable EP Control Registers */
-	for (i = 0; i < dev->n_ep; i++) {
+	for (i = 0; i < 7; i++) {
 		struct net2280_ep	*ep;
 
 		ep = &dev->ep [i];
 		if (i && !ep->desc)
 			continue;
 
-		t1 = readl(&ep->cfg->ep_cfg);
+		t1 = readl (&ep->regs->ep_cfg);
 		t2 = readl (&ep->regs->ep_rsp) & 0xff;
 		t = scnprintf (next, size,
 				"\n%s\tcfg %05x rsp (%02x) %s%s%s%s%s%s%s%s"
@@ -1723,7 +1571,7 @@ static ssize_t registers_show(struct device *_dev,
 	t = scnprintf (next, size, "\nirqs:  ");
 	size -= t;
 	next += t;
-	for (i = 0; i < dev->n_ep; i++) {
+	for (i = 0; i < 7; i++) {
 		struct net2280_ep	*ep;
 
 		ep = &dev->ep [i];
@@ -1758,7 +1606,7 @@ static ssize_t queues_show(struct device *_dev, struct device_attribute *attr,
 	size = PAGE_SIZE;
 	spin_lock_irqsave (&dev->lock, flags);
 
-	for (i = 0; i < dev->n_ep; i++) {
+	for (i = 0; i < 7; i++) {
 		struct net2280_ep		*ep = &dev->ep [i];
 		struct net2280_request		*req;
 		int				t;
@@ -1887,121 +1735,6 @@ static void set_fifo_mode (struct net2280 *dev, int mode)
 	list_add_tail (&dev->ep [6].ep.ep_list, &dev->gadget.ep_list);
 }
 
-static void defect7374_disable_data_eps(struct net2280 *dev)
-{
-	/*
-	 * For Defect 7374, disable data EPs (and more):
-	 *  - This phase undoes the earlier phase of the Defect 7374 workaround,
-	 *    returing ep regs back to normal.
-	 */
-	struct net2280_ep *ep;
-	int i;
-	unsigned char ep_sel;
-	u32 tmp_reg;
-
-	for (i = 1; i < 5; i++) {
-		ep = &dev->ep[i];
-		writel(0, &ep->cfg->ep_cfg);
-	}
-
-	/* CSROUT, CSRIN, PCIOUT, PCIIN, STATIN, RCIN */
-	for (i = 0; i < 6; i++)
-		writel(0, &dev->dep[i].dep_cfg);
-
-	for (ep_sel = 0; ep_sel <= 21; ep_sel++) {
-		/* Select an endpoint for subsequent operations: */
-		tmp_reg = readl(&dev->plregs->pl_ep_ctrl);
-		writel(((tmp_reg & ~0x1f) | ep_sel), &dev->plregs->pl_ep_ctrl);
-
-		if (ep_sel < 2 || (ep_sel > 9 && ep_sel < 14) ||
-					ep_sel == 18 || ep_sel == 20)
-			continue;
-
-		/* Change settings on some selected endpoints */
-		tmp_reg = readl(&dev->plregs->pl_ep_cfg_4);
-		tmp_reg &= ~(1 << NON_CTRL_IN_TOLERATE_BAD_DIR);
-		writel(tmp_reg, &dev->plregs->pl_ep_cfg_4);
-		tmp_reg = readl(&dev->plregs->pl_ep_ctrl);
-		tmp_reg |= (1 << EP_INITIALIZED);
-		writel(tmp_reg, &dev->plregs->pl_ep_ctrl);
-	}
-}
-
-static void defect7374_enable_data_eps_zero(struct net2280 *dev)
-{
-	u32 tmp = 0, tmp_reg;
-	u32 fsmvalue, scratch;
-	int i;
-	unsigned char ep_sel;
-
-	scratch = get_idx_reg(dev->regs, SCRATCH);
-	fsmvalue = scratch & (0xf << DEFECT7374_FSM_FIELD);
-	scratch &= ~(0xf << DEFECT7374_FSM_FIELD);
-
-	/*See if firmware needs to set up for workaround*/
-	if (fsmvalue != DEFECT7374_FSM_SS_CONTROL_READ) {
-		WARNING(dev, "Operate Defect 7374 workaround soft this time");
-		WARNING(dev, "It will operate on cold-reboot and SS connect");
-
-		/*GPEPs:*/
-		tmp = ((0 << ENDPOINT_NUMBER) | (1 << ENDPOINT_DIRECTION) |
-		       (2 << OUT_ENDPOINT_TYPE) | (2 << IN_ENDPOINT_TYPE) |
-		       ((dev->enhanced_mode) ?
-			1 << OUT_ENDPOINT_ENABLE : 1 << ENDPOINT_ENABLE) |
-		       (1 << IN_ENDPOINT_ENABLE));
-
-		for (i = 1; i < 5; i++)
-			writel(tmp, &dev->ep[i].cfg->ep_cfg);
-
-		/* CSRIN, PCIIN, STATIN, RCIN*/
-		tmp = ((0 << ENDPOINT_NUMBER) | (1 << ENDPOINT_ENABLE));
-		writel(tmp, &dev->dep[1].dep_cfg);
-		writel(tmp, &dev->dep[3].dep_cfg);
-		writel(tmp, &dev->dep[4].dep_cfg);
-		writel(tmp, &dev->dep[5].dep_cfg);
-
-		/*Implemented for development and debug.
-		 * Can be refined/tuned later.*/
-		for (ep_sel = 0; ep_sel <= 21; ep_sel++) {
-			/* Select an endpoint for subsequent operations: */
-			tmp_reg = readl(&dev->plregs->pl_ep_ctrl);
-			writel(((tmp_reg & ~0x1f) | ep_sel),
-			       &dev->plregs->pl_ep_ctrl);
-
-			if (ep_sel == 1) {
-				tmp =
-				    (readl(&dev->plregs->pl_ep_ctrl) |
-				     (1 << CLEAR_ACK_ERROR_CODE) | 0);
-				writel(tmp, &dev->plregs->pl_ep_ctrl);
-				continue;
-			}
-
-			if (ep_sel == 0 || (ep_sel > 9 && ep_sel < 14) ||
-					ep_sel == 18  || ep_sel == 20)
-				continue;
-
-			tmp = (readl(&dev->plregs->pl_ep_cfg_4) |
-				 (1 << NON_CTRL_IN_TOLERATE_BAD_DIR) | 0);
-			writel(tmp, &dev->plregs->pl_ep_cfg_4);
-
-			tmp = readl(&dev->plregs->pl_ep_ctrl) &
-				~(1 << EP_INITIALIZED);
-			writel(tmp, &dev->plregs->pl_ep_ctrl);
-
-		}
-
-		/* Set FSM to focus on the first Control Read:
-		 * - Tip: Connection speed is known upon the first
-		 * setup request.*/
-		scratch |= DEFECT7374_FSM_WAITING_FOR_CONTROL_READ;
-		set_idx_reg(dev->regs, SCRATCH, scratch);
-
-	} else{
-		WARNING(dev, "Defect 7374 workaround soft will NOT operate");
-		WARNING(dev, "It will operate on cold-reboot and SS connect");
-	}
-}
-
 /* keeping it simple:
  * - one bus driver, initted first;
  * - one function driver, initted second
@@ -2011,7 +1744,7 @@ static void defect7374_enable_data_eps_zero(struct net2280 *dev)
  * perhaps to bind specific drivers to specific devices.
  */
 
-static void usb_reset_228x(struct net2280 *dev)
+static void usb_reset (struct net2280 *dev)
 {
 	u32	tmp;
 
@@ -2027,11 +1760,11 @@ static void usb_reset_228x(struct net2280 *dev)
 
 	/* clear old dma and irq state */
 	for (tmp = 0; tmp < 4; tmp++) {
-		struct net2280_ep       *ep = &dev->ep[tmp + 1];
+		struct net2280_ep	*ep = &dev->ep [tmp + 1];
+
 		if (ep->dma)
-			abort_dma(ep);
+			abort_dma (ep);
 	}
-
 	writel (~0, &dev->regs->irqstat0),
 	writel (~(1 << SUSPEND_REQUEST_INTERRUPT), &dev->regs->irqstat1),
 
@@ -2047,67 +1780,7 @@ static void usb_reset_228x(struct net2280 *dev)
 	set_fifo_mode (dev, (fifo_mode <= 2) ? fifo_mode : 0);
 }
 
-static void usb_reset_338x(struct net2280 *dev)
-{
-	u32 tmp;
-	u32 fsmvalue;
-
-	dev->gadget.speed = USB_SPEED_UNKNOWN;
-	(void)readl(&dev->usb->usbctl);
-
-	net2280_led_init(dev);
-
-	fsmvalue = get_idx_reg(dev->regs, SCRATCH) &
-			(0xf << DEFECT7374_FSM_FIELD);
-
-	/* See if firmware needs to set up for workaround: */
-	if (fsmvalue != DEFECT7374_FSM_SS_CONTROL_READ) {
-		INFO(dev, "%s: Defect 7374 FsmValue 0x%08X\n", __func__,
-		     fsmvalue);
-	} else {
-		/* disable automatic responses, and irqs */
-		writel(0, &dev->usb->stdrsp);
-		writel(0, &dev->regs->pciirqenb0);
-		writel(0, &dev->regs->pciirqenb1);
-	}
-
-	/* clear old dma and irq state */
-	for (tmp = 0; tmp < 4; tmp++) {
-		struct net2280_ep *ep = &dev->ep[tmp + 1];
-
-		if (ep->dma)
-			abort_dma(ep);
-	}
-
-	writel(~0, &dev->regs->irqstat0), writel(~0, &dev->regs->irqstat1);
-
-	if (fsmvalue == DEFECT7374_FSM_SS_CONTROL_READ) {
-		/* reset, and enable pci */
-		tmp = readl(&dev->regs->devinit) |
-		    (1 << PCI_ENABLE) |
-		    (1 << FIFO_SOFT_RESET) |
-		    (1 << USB_SOFT_RESET) |
-		    (1 << M8051_RESET);
-
-		writel(tmp, &dev->regs->devinit);
-	}
-
-	/* always ep-{1,2,3,4} ... maybe not ep-3 or ep-4 */
-	INIT_LIST_HEAD(&dev->gadget.ep_list);
-
-	for (tmp = 1; tmp < dev->n_ep; tmp++)
-		list_add_tail(&dev->ep[tmp].ep.ep_list, &dev->gadget.ep_list);
-
-}
-
-static void usb_reset(struct net2280 *dev)
-{
-	if (dev->pdev->vendor == 0x17cc)
-		return usb_reset_228x(dev);
-	return usb_reset_338x(dev);
-}
-
-static void usb_reinit_228x(struct net2280 *dev)
+static void usb_reinit (struct net2280 *dev)
 {
 	u32	tmp;
 	int	init_dma;
@@ -2130,8 +1803,7 @@ static void usb_reinit_228x(struct net2280 *dev)
 		} else
 			ep->fifo_size = 64;
 		ep->regs = &dev->epregs [tmp];
-		ep->cfg = &dev->epregs[tmp];
-		ep_reset_228x(dev->regs, ep);
+		ep_reset (dev->regs, ep);
 	}
 	usb_ep_set_maxpacket_limit(&dev->ep [0].ep, 64);
 	usb_ep_set_maxpacket_limit(&dev->ep [5].ep, 64);
@@ -2148,122 +1820,7 @@ static void usb_reinit_228x(struct net2280 *dev)
 		writel (EP_DONTUSE, &dev->dep [tmp].dep_cfg);
 }
 
-static void usb_reinit_338x(struct net2280 *dev)
-{
-	int init_dma;
-	int i;
-	u32 tmp, val;
-	u32 fsmvalue;
-	static const u32 ne[9] = { 0, 1, 2, 3, 4, 1, 2, 3, 4 };
-	static const u32 ep_reg_addr[9] = { 0x00, 0xC0, 0x00, 0xC0, 0x00,
-						0x00, 0xC0, 0x00, 0xC0 };
-
-	/* use_dma changes are ignored till next device re-init */
-	init_dma = use_dma;
-
-	/* basic endpoint init */
-	for (i = 0; i < dev->n_ep; i++) {
-		struct net2280_ep *ep = &dev->ep[i];
-
-		ep->ep.name = ep_name[i];
-		ep->dev = dev;
-		ep->num = i;
-
-		if (i > 0 && i <= 4 && init_dma)
-			ep->dma = &dev->dma[i - 1];
-
-		if (dev->enhanced_mode) {
-			ep->cfg = &dev->epregs[ne[i]];
-			ep->regs = (struct net2280_ep_regs __iomem *)
-				(((void *)&dev->epregs[ne[i]]) +
-				ep_reg_addr[i]);
-			ep->fiforegs = &dev->fiforegs[i];
-		} else {
-			ep->cfg = &dev->epregs[i];
-			ep->regs = &dev->epregs[i];
-			ep->fiforegs = &dev->fiforegs[i];
-		}
-
-		ep->fifo_size = (i != 0) ? 2048 : 512;
-
-		ep_reset_338x(dev->regs, ep);
-	}
-	usb_ep_set_maxpacket_limit(&dev->ep[0].ep, 512);
-
-	dev->gadget.ep0 = &dev->ep[0].ep;
-	dev->ep[0].stopped = 0;
-
-	/* Link layer set up */
-	fsmvalue = get_idx_reg(dev->regs, SCRATCH) &
-				(0xf << DEFECT7374_FSM_FIELD);
-
-	/* See if driver needs to set up for workaround: */
-	if (fsmvalue != DEFECT7374_FSM_SS_CONTROL_READ)
-		INFO(dev, "%s: Defect 7374 FsmValue %08x\n",
-						__func__, fsmvalue);
-	else {
-		tmp = readl(&dev->usb_ext->usbctl2) &
-		    ~((1 << U1_ENABLE) | (1 << U2_ENABLE) | (1 << LTM_ENABLE));
-		writel(tmp, &dev->usb_ext->usbctl2);
-	}
-
-	/* Hardware Defect and Workaround */
-	val = readl(&dev->ll_lfps_regs->ll_lfps_5);
-	val &= ~(0xf << TIMER_LFPS_6US);
-	val |= 0x5 << TIMER_LFPS_6US;
-	writel(val, &dev->ll_lfps_regs->ll_lfps_5);
-
-	val = readl(&dev->ll_lfps_regs->ll_lfps_6);
-	val &= ~(0xffff << TIMER_LFPS_80US);
-	val |= 0x0100 << TIMER_LFPS_80US;
-	writel(val, &dev->ll_lfps_regs->ll_lfps_6);
-
-	/*
-	 * AA_AB Errata. Issue 4. Workaround for SuperSpeed USB
-	 * Hot Reset Exit Handshake may Fail in Specific Case using
-	 * Default Register Settings. Workaround for Enumeration test.
-	 */
-	val = readl(&dev->ll_tsn_regs->ll_tsn_counters_2);
-	val &= ~(0x1f << HOT_TX_NORESET_TS2);
-	val |= 0x10 << HOT_TX_NORESET_TS2;
-	writel(val, &dev->ll_tsn_regs->ll_tsn_counters_2);
-
-	val = readl(&dev->ll_tsn_regs->ll_tsn_counters_3);
-	val &= ~(0x1f << HOT_RX_RESET_TS2);
-	val |= 0x3 << HOT_RX_RESET_TS2;
-	writel(val, &dev->ll_tsn_regs->ll_tsn_counters_3);
-
-	/*
-	 * Set Recovery Idle to Recover bit:
-	 * - On SS connections, setting Recovery Idle to Recover Fmw improves
-	 *   link robustness with various hosts and hubs.
-	 * - It is safe to set for all connection speeds; all chip revisions.
-	 * - R-M-W to leave other bits undisturbed.
-	 * - Reference PLX TT-7372
-	*/
-	val = readl(&dev->ll_chicken_reg->ll_tsn_chicken_bit);
-	val |= (1 << RECOVERY_IDLE_TO_RECOVER_FMW);
-	writel(val, &dev->ll_chicken_reg->ll_tsn_chicken_bit);
-
-	INIT_LIST_HEAD(&dev->gadget.ep0->ep_list);
-
-	/* disable dedicated endpoints */
-	writel(0x0D, &dev->dep[0].dep_cfg);
-	writel(0x0D, &dev->dep[1].dep_cfg);
-	writel(0x0E, &dev->dep[2].dep_cfg);
-	writel(0x0E, &dev->dep[3].dep_cfg);
-	writel(0x0F, &dev->dep[4].dep_cfg);
-	writel(0x0C, &dev->dep[5].dep_cfg);
-}
-
-static void usb_reinit(struct net2280 *dev)
-{
-	if (dev->pdev->vendor == 0x17cc)
-		return usb_reinit_228x(dev);
-	return usb_reinit_338x(dev);
-}
-
-static void ep0_start_228x(struct net2280 *dev)
+static void ep0_start (struct net2280 *dev)
 {
 	writel (  (1 << CLEAR_EP_HIDE_STATUS_PHASE)
 		| (1 << CLEAR_NAK_OUT_PACKETS)
@@ -2306,61 +1863,6 @@ static void ep0_start_228x(struct net2280 *dev)
 	(void) readl (&dev->usb->usbctl);
 }
 
-static void ep0_start_338x(struct net2280 *dev)
-{
-	u32 fsmvalue;
-
-	fsmvalue = get_idx_reg(dev->regs, SCRATCH) &
-			(0xf << DEFECT7374_FSM_FIELD);
-
-	if (fsmvalue != DEFECT7374_FSM_SS_CONTROL_READ)
-		INFO(dev, "%s: Defect 7374 FsmValue %08x\n", __func__,
-		     fsmvalue);
-	else
-		writel((1 << CLEAR_NAK_OUT_PACKETS_MODE) |
-		       (1 << SET_EP_HIDE_STATUS_PHASE),
-		       &dev->epregs[0].ep_rsp);
-
-	/*
-	 * hardware optionally handles a bunch of standard requests
-	 * that the API hides from drivers anyway.  have it do so.
-	 * endpoint status/features are handled in software, to
-	 * help pass tests for some dubious behavior.
-	 */
-	writel((1 << SET_ISOCHRONOUS_DELAY) |
-	       (1 << SET_SEL) |
-	       (1 << SET_TEST_MODE) |
-	       (1 << SET_ADDRESS) |
-	       (1 << GET_INTERFACE_STATUS) |
-	       (1 << GET_DEVICE_STATUS),
-		&dev->usb->stdrsp);
-	dev->wakeup_enable = 1;
-	writel((1 << USB_ROOT_PORT_WAKEUP_ENABLE) |
-	       (dev->softconnect << USB_DETECT_ENABLE) |
-	       (1 << DEVICE_REMOTE_WAKEUP_ENABLE),
-	       &dev->usb->usbctl);
-
-	/* enable irqs so we can see ep0 and general operation  */
-	writel((1 << SETUP_PACKET_INTERRUPT_ENABLE) |
-	       (1 << ENDPOINT_0_INTERRUPT_ENABLE)
-	       , &dev->regs->pciirqenb0);
-	writel((1 << PCI_INTERRUPT_ENABLE) |
-	       (1 << ROOT_PORT_RESET_INTERRUPT_ENABLE) |
-	       (1 << SUSPEND_REQUEST_CHANGE_INTERRUPT_ENABLE) |
-	       (1 << VBUS_INTERRUPT_ENABLE),
-	       &dev->regs->pciirqenb1);
-
-	/* don't leave any writes posted */
-	(void)readl(&dev->usb->usbctl);
-}
-
-static void ep0_start(struct net2280 *dev)
-{
-	if (dev->pdev->vendor == 0x17cc)
-		return ep0_start_228x(dev);
-	return ep0_start_338x(dev);
-}
-
 /* when a driver is successfully registered, it will receive
  * control requests including set_configuration(), which enables
  * non-control requests.  then usb traffic follows until a
@@ -2384,7 +1886,7 @@ static int net2280_start(struct usb_gadget *_gadget,
 
 	dev = container_of (_gadget, struct net2280, gadget);
 
-	for (i = 0; i < dev->n_ep; i++)
+	for (i = 0; i < 7; i++)
 		dev->ep [i].irqs = 0;
 
 	/* hook up the driver ... */
@@ -2398,17 +1900,13 @@ static int net2280_start(struct usb_gadget *_gadget,
 	if (retval) goto err_func;
 
 	/* Enable force-full-speed testing mode, if desired */
-	if (full_speed && dev->pdev->vendor == 0x17cc)
+	if (full_speed)
 		writel(1 << FORCE_FULL_SPEED_MODE, &dev->usb->xcvrdiag);
 
 	/* ... then enable host detection and ep0; and we're ready
 	 * for set_configuration as well as eventual disconnect.
 	 */
 	net2280_led_active (dev, 1);
-
-	if (dev->pdev->vendor == 0x10b5)
-		defect7374_enable_data_eps_zero(dev);
-
 	ep0_start (dev);
 
 	DEBUG (dev, "%s ready, usbctl %08x stdrsp %08x\n",
@@ -2439,7 +1937,7 @@ stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver)
 	 * and kill any outstanding requests.
 	 */
 	usb_reset (dev);
-	for (i = 0; i < dev->n_ep; i++)
+	for (i = 0; i < 7; i++)
 		nuke (&dev->ep [i]);
 
 	/* report disconnect; the driver is already quiesced */
@@ -2469,8 +1967,7 @@ static int net2280_stop(struct usb_gadget *_gadget,
 	net2280_led_active (dev, 0);
 
 	/* Disable full-speed test mode */
-	if (dev->pdev->vendor == 0x17cc)
-		writel(0, &dev->usb->xcvrdiag);
+	writel(0, &dev->usb->xcvrdiag);
 
 	device_remove_file (&dev->pdev->dev, &dev_attr_function);
 	device_remove_file (&dev->pdev->dev, &dev_attr_queues);
@@ -2722,350 +2219,6 @@ get_ep_by_addr (struct net2280 *dev, u16 wIndex)
 	return NULL;
 }
 
-static void defect7374_workaround(struct net2280 *dev, struct usb_ctrlrequest r)
-{
-	u32 scratch, fsmvalue;
-	u32 ack_wait_timeout, state;
-
-	/* Workaround for Defect 7374 (U1/U2 erroneously rejected): */
-	scratch = get_idx_reg(dev->regs, SCRATCH);
-	fsmvalue = scratch & (0xf << DEFECT7374_FSM_FIELD);
-	scratch &= ~(0xf << DEFECT7374_FSM_FIELD);
-
-	if (!((fsmvalue == DEFECT7374_FSM_WAITING_FOR_CONTROL_READ) &&
-				(r.bRequestType & USB_DIR_IN)))
-		return;
-
-	/* This is the first Control Read for this connection: */
-	if (!(readl(&dev->usb->usbstat) & (1 << SUPER_SPEED_MODE))) {
-		/*
-		 * Connection is NOT SS:
-		 * - Connection must be FS or HS.
-		 * - This FSM state should allow workaround software to
-		 * run after the next USB connection.
-		 */
-		scratch |= DEFECT7374_FSM_NON_SS_CONTROL_READ;
-		goto restore_data_eps;
-	}
-
-	/* Connection is SS: */
-	for (ack_wait_timeout = 0;
-			ack_wait_timeout < DEFECT_7374_NUMBEROF_MAX_WAIT_LOOPS;
-			ack_wait_timeout++) {
-
-		state =	readl(&dev->plregs->pl_ep_status_1)
-			& (0xff << STATE);
-		if ((state >= (ACK_GOOD_NORMAL << STATE)) &&
-			(state <= (ACK_GOOD_MORE_ACKS_TO_COME << STATE))) {
-			scratch |= DEFECT7374_FSM_SS_CONTROL_READ;
-			break;
-		}
-
-		/*
-		 * We have not yet received host's Data Phase ACK
-		 * - Wait and try again.
-		 */
-		udelay(DEFECT_7374_PROCESSOR_WAIT_TIME);
-
-		continue;
-	}
-
-
-	if (ack_wait_timeout >= DEFECT_7374_NUMBEROF_MAX_WAIT_LOOPS) {
-		ERROR(dev, "FAIL: Defect 7374 workaround waited but failed");
-		ERROR(dev, "to detect SS host's data phase ACK.");
-		ERROR(dev, "PL_EP_STATUS_1(23:16):.Expected from 0x11 to 0x16");
-		ERROR(dev, "got 0x%2.2x.\n", state >> STATE);
-	} else {
-		WARNING(dev, "INFO: Defect 7374 workaround waited about\n");
-		WARNING(dev, "%duSec for Control Read Data Phase ACK\n",
-			DEFECT_7374_PROCESSOR_WAIT_TIME * ack_wait_timeout);
-	}
-
-restore_data_eps:
-	/*
-	 * Restore data EPs to their pre-workaround settings (disabled,
-	 * initialized, and other details).
-	 */
-	defect7374_disable_data_eps(dev);
-
-	set_idx_reg(dev->regs, SCRATCH, scratch);
-
-	return;
-}
-
-static void ep_stall(struct net2280_ep *ep, int stall)
-{
-	struct net2280 *dev = ep->dev;
-	u32 val;
-	static const u32 ep_pl[9] = { 0, 3, 4, 7, 8, 2, 5, 6, 9 };
-
-	if (stall) {
-		writel((1 << SET_ENDPOINT_HALT) |
-		       /* (1 << SET_NAK_PACKETS) | */
-		       (1 << CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE),
-		       &ep->regs->ep_rsp);
-		ep->is_halt = 1;
-	} else {
-		if (dev->gadget.speed == USB_SPEED_SUPER) {
-			/*
-			 * Workaround for SS SeqNum not cleared via
-			 * Endpoint Halt (Clear) bit. select endpoint
-			 */
-			val = readl(&dev->plregs->pl_ep_ctrl);
-			val = (val & ~0x1f) | ep_pl[ep->num];
-			writel(val, &dev->plregs->pl_ep_ctrl);
-
-			val |= (1 << SEQUENCE_NUMBER_RESET);
-			writel(val, &dev->plregs->pl_ep_ctrl);
-		}
-		val = readl(&ep->regs->ep_rsp);
-		val |= (1 << CLEAR_ENDPOINT_HALT) |
-			(1 << CLEAR_ENDPOINT_TOGGLE);
-		writel(val
-		       /* | (1 << CLEAR_NAK_PACKETS)*/
-		       , &ep->regs->ep_rsp);
-		ep->is_halt = 0;
-		val = readl(&ep->regs->ep_rsp);
-	}
-}
-
-static void ep_stdrsp(struct net2280_ep *ep, int value, int wedged)
-{
-	/* set/clear, then synch memory views with the device */
-	if (value) {
-		ep->stopped = 1;
-		if (ep->num == 0)
-			ep->dev->protocol_stall = 1;
-		else {
-			if (ep->dma)
-				ep_stop_dma(ep);
-			ep_stall(ep, true);
-		}
-
-		if (wedged)
-			ep->wedged = 1;
-	} else {
-		ep->stopped = 0;
-		ep->wedged = 0;
-
-		ep_stall(ep, false);
-
-		/* Flush the queue */
-		if (!list_empty(&ep->queue)) {
-			struct net2280_request *req =
-			    list_entry(ep->queue.next, struct net2280_request,
-				       queue);
-			if (ep->dma)
-				resume_dma(ep);
-			else {
-				if (ep->is_in)
-					write_fifo(ep, &req->req);
-				else {
-					if (read_fifo(ep, req))
-						done(ep, req, 0);
-				}
-			}
-		}
-	}
-}
-
-static void handle_stat0_irqs_superspeed(struct net2280 *dev,
-		struct net2280_ep *ep, struct usb_ctrlrequest r)
-{
-	int tmp = 0;
-
-#define	w_value		le16_to_cpu(r.wValue)
-#define	w_index		le16_to_cpu(r.wIndex)
-#define	w_length	le16_to_cpu(r.wLength)
-
-	switch (r.bRequest) {
-		struct net2280_ep *e;
-		u16 status;
-
-	case USB_REQ_SET_CONFIGURATION:
-		dev->addressed_state = !w_value;
-		goto usb3_delegate;
-
-	case USB_REQ_GET_STATUS:
-		switch (r.bRequestType) {
-		case (USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE):
-			status = dev->wakeup_enable ? 0x02 : 0x00;
-			if (dev->selfpowered)
-				status |= 1 << 0;
-			status |= (dev->u1_enable << 2 | dev->u2_enable << 3 |
-							dev->ltm_enable << 4);
-			writel(0, &dev->epregs[0].ep_irqenb);
-			set_fifo_bytecount(ep, sizeof(status));
-			writel((__force u32) status, &dev->epregs[0].ep_data);
-			allow_status_338x(ep);
-			break;
-
-		case (USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_ENDPOINT):
-			e = get_ep_by_addr(dev, w_index);
-			if (!e)
-				goto do_stall3;
-			status = readl(&e->regs->ep_rsp) &
-						(1 << CLEAR_ENDPOINT_HALT);
-			writel(0, &dev->epregs[0].ep_irqenb);
-			set_fifo_bytecount(ep, sizeof(status));
-			writel((__force u32) status, &dev->epregs[0].ep_data);
-			allow_status_338x(ep);
-			break;
-
-		default:
-			goto usb3_delegate;
-		}
-		break;
-
-	case USB_REQ_CLEAR_FEATURE:
-		switch (r.bRequestType) {
-		case (USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE):
-			if (!dev->addressed_state) {
-				switch (w_value) {
-				case USB_DEVICE_U1_ENABLE:
-					dev->u1_enable = 0;
-					writel(readl(&dev->usb_ext->usbctl2) &
-						~(1 << U1_ENABLE),
-						&dev->usb_ext->usbctl2);
-					allow_status_338x(ep);
-					goto next_endpoints3;
-
-				case USB_DEVICE_U2_ENABLE:
-					dev->u2_enable = 0;
-					writel(readl(&dev->usb_ext->usbctl2) &
-						~(1 << U2_ENABLE),
-						&dev->usb_ext->usbctl2);
-					allow_status_338x(ep);
-					goto next_endpoints3;
-
-				case USB_DEVICE_LTM_ENABLE:
-					dev->ltm_enable = 0;
-					writel(readl(&dev->usb_ext->usbctl2) &
-						~(1 << LTM_ENABLE),
-						&dev->usb_ext->usbctl2);
-					allow_status_338x(ep);
-					goto next_endpoints3;
-
-				default:
-					break;
-				}
-			}
-			if (w_value == USB_DEVICE_REMOTE_WAKEUP) {
-				dev->wakeup_enable = 0;
-				writel(readl(&dev->usb->usbctl) &
-					~(1 << DEVICE_REMOTE_WAKEUP_ENABLE),
-					&dev->usb->usbctl);
-				allow_status_338x(ep);
-				break;
-			}
-			goto usb3_delegate;
-
-		case (USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_ENDPOINT):
-			e = get_ep_by_addr(dev,	w_index);
-			if (!e)
-				goto do_stall3;
-			if (w_value != USB_ENDPOINT_HALT)
-				goto do_stall3;
-			VDEBUG(dev, "%s clear halt\n", e->ep.name);
-			ep_stall(e, false);
-			if (!list_empty(&e->queue) && e->td_dma)
-				restart_dma(e);
-			allow_status(ep);
-			ep->stopped = 1;
-			break;
-
-		default:
-			goto usb3_delegate;
-		}
-		break;
-	case USB_REQ_SET_FEATURE:
-		switch (r.bRequestType) {
-		case (USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE):
-			if (!dev->addressed_state) {
-				switch (w_value) {
-				case USB_DEVICE_U1_ENABLE:
-					dev->u1_enable = 1;
-					writel(readl(&dev->usb_ext->usbctl2) |
-						(1 << U1_ENABLE),
-						&dev->usb_ext->usbctl2);
-					allow_status_338x(ep);
-					goto next_endpoints3;
-
-				case USB_DEVICE_U2_ENABLE:
-					dev->u2_enable = 1;
-					writel(readl(&dev->usb_ext->usbctl2) |
-						(1 << U2_ENABLE),
-						&dev->usb_ext->usbctl2);
-					allow_status_338x(ep);
-					goto next_endpoints3;
-
-				case USB_DEVICE_LTM_ENABLE:
-					dev->ltm_enable = 1;
-					writel(readl(&dev->usb_ext->usbctl2) |
-						(1 << LTM_ENABLE),
-						&dev->usb_ext->usbctl2);
-					allow_status_338x(ep);
-					goto next_endpoints3;
-				default:
-					break;
-				}
-			}
-
-			if (w_value == USB_DEVICE_REMOTE_WAKEUP) {
-				dev->wakeup_enable = 1;
-				writel(readl(&dev->usb->usbctl) |
-					(1 << DEVICE_REMOTE_WAKEUP_ENABLE),
-					&dev->usb->usbctl);
-				allow_status_338x(ep);
-				break;
-			}
-			goto usb3_delegate;
-
-		case (USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_ENDPOINT):
-			e = get_ep_by_addr(dev,	w_index);
-			if (!e || (w_value != USB_ENDPOINT_HALT))
-				goto do_stall3;
-			ep_stdrsp(e, true, false);
-			allow_status_338x(ep);
-			break;
-
-		default:
-			goto usb3_delegate;
-		}
-
-		break;
-	default:
-
-usb3_delegate:
-		VDEBUG(dev, "setup %02x.%02x v%04x i%04x l%04x ep_cfg %08x\n",
-				r.bRequestType, r.bRequest,
-				w_value, w_index, w_length,
-				readl(&ep->cfg->ep_cfg));
-
-		ep->responded = 0;
-		spin_unlock(&dev->lock);
-		tmp = dev->driver->setup(&dev->gadget, &r);
-		spin_lock(&dev->lock);
-	}
-do_stall3:
-	if (tmp < 0) {
-		VDEBUG(dev, "req %02x.%02x protocol STALL; stat %d\n",
-				r.bRequestType, r.bRequest, tmp);
-		dev->protocol_stall = 1;
-		/* TD 9.9 Halt Endpoint test. TD 9.22 Set feature test */
-		ep_stall(ep, true);
-	}
-
-next_endpoints3:
-
-#undef	w_value
-#undef	w_index
-#undef	w_length
-
-	return;
-}
-
 static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
 {
 	struct net2280_ep	*ep;
@@ -3087,20 +2240,10 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
 		struct net2280_request		*req;
 
 		if (dev->gadget.speed == USB_SPEED_UNKNOWN) {
-			u32 val = readl(&dev->usb->usbstat);
-			if (val & (1 << SUPER_SPEED)) {
-				dev->gadget.speed = USB_SPEED_SUPER;
-				usb_ep_set_maxpacket_limit(&dev->ep[0].ep,
-						EP0_SS_MAX_PACKET_SIZE);
-			} else if (val & (1 << HIGH_SPEED)) {
+			if (readl (&dev->usb->usbstat) & (1 << HIGH_SPEED))
 				dev->gadget.speed = USB_SPEED_HIGH;
-				usb_ep_set_maxpacket_limit(&dev->ep[0].ep,
-						EP0_HS_MAX_PACKET_SIZE);
-			} else {
+			else
 				dev->gadget.speed = USB_SPEED_FULL;
-				usb_ep_set_maxpacket_limit(&dev->ep[0].ep,
-						EP0_HS_MAX_PACKET_SIZE);
-			}
 			net2280_led_speed (dev, dev->gadget.speed);
 			DEBUG(dev, "%s\n", usb_speed_string(dev->gadget.speed));
 		}
@@ -3118,38 +2261,32 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
 		}
 		ep->stopped = 0;
 		dev->protocol_stall = 0;
-		if (dev->pdev->vendor == 0x10b5)
-			ep->is_halt = 0;
-		else{
-			if (ep->dev->pdev->device == 0x2280)
-				tmp = (1 << FIFO_OVERFLOW) |
-				    (1 << FIFO_UNDERFLOW);
-			else
-				tmp = 0;
-
-			writel(tmp | (1 << TIMEOUT) |
-				   (1 << USB_STALL_SENT) |
-				   (1 << USB_IN_NAK_SENT) |
-				   (1 << USB_IN_ACK_RCVD) |
-				   (1 << USB_OUT_PING_NAK_SENT) |
-				   (1 << USB_OUT_ACK_SENT) |
-				   (1 << SHORT_PACKET_OUT_DONE_INTERRUPT) |
-				   (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT) |
-				   (1 << DATA_PACKET_RECEIVED_INTERRUPT) |
-				   (1 << DATA_PACKET_TRANSMITTED_INTERRUPT) |
-				   (1 << DATA_OUT_PING_TOKEN_INTERRUPT) |
-				   (1 << DATA_IN_TOKEN_INTERRUPT)
-				   , &ep->regs->ep_stat);
-		}
-		u.raw[0] = readl(&dev->usb->setup0123);
-		u.raw[1] = readl(&dev->usb->setup4567);
+
+		if (ep->dev->pdev->device == 0x2280)
+			tmp = (1 << FIFO_OVERFLOW)
+				| (1 << FIFO_UNDERFLOW);
+		else
+			tmp = 0;
+
+		writel (tmp | (1 << TIMEOUT)
+			| (1 << USB_STALL_SENT)
+			| (1 << USB_IN_NAK_SENT)
+			| (1 << USB_IN_ACK_RCVD)
+			| (1 << USB_OUT_PING_NAK_SENT)
+			| (1 << USB_OUT_ACK_SENT)
+			| (1 << SHORT_PACKET_OUT_DONE_INTERRUPT)
+			| (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT)
+			| (1 << DATA_PACKET_RECEIVED_INTERRUPT)
+			| (1 << DATA_PACKET_TRANSMITTED_INTERRUPT)
+			| (1 << DATA_OUT_PING_TOKEN_INTERRUPT)
+			| (1 << DATA_IN_TOKEN_INTERRUPT)
+			, &ep->regs->ep_stat);
+		u.raw [0] = readl (&dev->usb->setup0123);
+		u.raw [1] = readl (&dev->usb->setup4567);
 
 		cpu_to_le32s (&u.raw [0]);
 		cpu_to_le32s (&u.raw [1]);
 
-		if (dev->pdev->vendor == 0x10b5)
-			defect7374_workaround(dev, u.r);
-
 		tmp = 0;
 
 #define	w_value		le16_to_cpu(u.r.wValue)
@@ -3181,12 +2318,6 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
 		 * everything else goes uplevel to the gadget code.
 		 */
 		ep->responded = 1;
-
-		if (dev->gadget.speed == USB_SPEED_SUPER) {
-			handle_stat0_irqs_superspeed(dev, ep, u.r);
-			goto next_endpoints;
-		}
-
 		switch (u.r.bRequest) {
 		case USB_REQ_GET_STATUS: {
 			struct net2280_ep	*e;
@@ -3229,11 +2360,8 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
 				VDEBUG(dev, "%s wedged, halt not cleared\n",
 						ep->ep.name);
 			} else {
-				VDEBUG(dev, "%s clear halt\n", e->ep.name);
+				VDEBUG(dev, "%s clear halt\n", ep->ep.name);
 				clear_halt(e);
-				if (ep->dev->pdev->vendor == 0x10b5 &&
-					!list_empty(&e->queue) && e->td_dma)
-						restart_dma(e);
 			}
 			allow_status (ep);
 			goto next_endpoints;
@@ -3253,8 +2381,6 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
 			if (e->ep.name == ep0name)
 				goto do_stall;
 			set_halt (e);
-			if (dev->pdev->vendor == 0x10b5 && e->dma)
-				abort_dma(e);
 			allow_status (ep);
 			VDEBUG (dev, "%s set halt\n", ep->ep.name);
 			goto next_endpoints;
@@ -3266,7 +2392,7 @@ delegate:
 				"ep_cfg %08x\n",
 				u.r.bRequestType, u.r.bRequest,
 				w_value, w_index, w_length,
-				readl(&ep->cfg->ep_cfg));
+				readl (&ep->regs->ep_cfg));
 			ep->responded = 0;
 			spin_unlock (&dev->lock);
 			tmp = dev->driver->setup (&dev->gadget, &u.r);
@@ -3329,7 +2455,7 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
 
 	/* after disconnect there's nothing else to do! */
 	tmp = (1 << VBUS_INTERRUPT) | (1 << ROOT_PORT_RESET_INTERRUPT);
-	mask = (1 << SUPER_SPEED) | (1 << HIGH_SPEED) | (1 << FULL_SPEED);
+	mask = (1 << HIGH_SPEED) | (1 << FULL_SPEED);
 
 	/* VBUS disconnect is indicated by VBUS_PIN and VBUS_INTERRUPT set.
 	 * Root Port Reset is indicated by ROOT_PORT_RESET_INTERRUPT set and
@@ -3420,19 +2546,12 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
 		tmp = readl (&dma->dmastat);
 		writel (tmp, &dma->dmastat);
 
-		/* dma sync*/
-		if (dev->pdev->vendor == 0x10b5) {
-			u32 r_dmacount = readl(&dma->dmacount);
-			if (!ep->is_in &&  (r_dmacount & 0x00FFFFFF) &&
-			    (tmp & (1 << DMA_TRANSACTION_DONE_INTERRUPT)))
-				continue;
-		}
-
 		/* chaining should stop on abort, short OUT from fifo,
 		 * or (stat0 codepath) short OUT transfer.
 		 */
 		if (!use_dma_chaining) {
-			if (!(tmp & (1 << DMA_TRANSACTION_DONE_INTERRUPT))) {
+			if ((tmp & (1 << DMA_TRANSACTION_DONE_INTERRUPT))
+					== 0) {
 				DEBUG (ep->dev, "%s no xact done? %08x\n",
 					ep->ep.name, tmp);
 				continue;
@@ -3506,8 +2625,7 @@ static irqreturn_t net2280_irq (int irq, void *_dev)
 	struct net2280		*dev = _dev;
 
 	/* shared interrupt, not ours */
-	if (dev->pdev->vendor == 0x17cc &&
-		(!(readl(&dev->regs->irqstat0) & (1 << INTA_ASSERTED))))
+	if (!(readl(&dev->regs->irqstat0) & (1 << INTA_ASSERTED)))
 		return IRQ_NONE;
 
 	spin_lock (&dev->lock);
@@ -3518,13 +2636,6 @@ static irqreturn_t net2280_irq (int irq, void *_dev)
 	/* control requests and PIO */
 	handle_stat0_irqs (dev, readl (&dev->regs->irqstat0));
 
-	if (dev->pdev->vendor == 0x10b5) {
-		/* re-enable interrupt to trigger any possible new interrupt */
-		u32 pciirqenb1 = readl(&dev->regs->pciirqenb1);
-		writel(pciirqenb1 & 0x7FFFFFFF, &dev->regs->pciirqenb1);
-		writel(pciirqenb1, &dev->regs->pciirqenb1);
-	}
-
 	spin_unlock (&dev->lock);
 
 	return IRQ_HANDLED;
@@ -3563,8 +2674,6 @@ static void net2280_remove (struct pci_dev *pdev)
 	}
 	if (dev->got_irq)
 		free_irq (pdev->irq, dev);
-	if (use_msi && dev->pdev->vendor == 0x10b5)
-		pci_disable_msi(pdev);
 	if (dev->regs)
 		iounmap (dev->regs);
 	if (dev->region)
@@ -3599,8 +2708,7 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
 	spin_lock_init (&dev->lock);
 	dev->pdev = pdev;
 	dev->gadget.ops = &net2280_ops;
-	dev->gadget.max_speed = (dev->pdev->vendor == 0x10b5) ?
-				USB_SPEED_SUPER : USB_SPEED_HIGH;
+	dev->gadget.max_speed = USB_SPEED_HIGH;
 
 	/* the "gadget" abstracts/virtualizes the controller */
 	dev->gadget.name = driver_name;
@@ -3642,39 +2750,8 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
 	dev->dep = (struct net2280_dep_regs __iomem *) (base + 0x0200);
 	dev->epregs = (struct net2280_ep_regs __iomem *) (base + 0x0300);
 
-	if (dev->pdev->vendor == 0x10b5) {
-		u32 fsmvalue;
-		u32 usbstat;
-		dev->usb_ext = (struct usb338x_usb_ext_regs __iomem *)
-							(base + 0x00b4);
-		dev->fiforegs = (struct usb338x_fifo_regs __iomem *)
-							(base + 0x0500);
-		dev->llregs = (struct usb338x_ll_regs __iomem *)
-							(base + 0x0700);
-		dev->ll_lfps_regs = (struct usb338x_ll_lfps_regs __iomem *)
-							(base + 0x0748);
-		dev->ll_tsn_regs = (struct usb338x_ll_tsn_regs __iomem *)
-							(base + 0x077c);
-		dev->ll_chicken_reg = (struct usb338x_ll_chi_regs __iomem *)
-							(base + 0x079c);
-		dev->plregs = (struct usb338x_pl_regs __iomem *)
-							(base + 0x0800);
-		usbstat = readl(&dev->usb->usbstat);
-		dev->enhanced_mode = (usbstat & (1 << 11)) ? 1 : 0;
-		dev->n_ep = (dev->enhanced_mode) ? 9 : 5;
-		/* put into initial config, link up all endpoints */
-		fsmvalue = get_idx_reg(dev->regs, SCRATCH) &
-					(0xf << DEFECT7374_FSM_FIELD);
-		/* See if firmware needs to set up for workaround: */
-		if (fsmvalue == DEFECT7374_FSM_SS_CONTROL_READ)
-			writel(0, &dev->usb->usbctl);
-	} else{
-		dev->enhanced_mode = 0;
-		dev->n_ep = 7;
-		/* put into initial config, link up all endpoints */
-		writel(0, &dev->usb->usbctl);
-	}
-
+	/* put into initial config, link up all endpoints */
+	writel (0, &dev->usb->usbctl);
 	usb_reset (dev);
 	usb_reinit (dev);
 
@@ -3685,10 +2762,6 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
 		goto done;
 	}
 
-	if (use_msi && dev->pdev->vendor == 0x10b5)
-		if (pci_enable_msi(pdev))
-			ERROR(dev, "Failed to enable MSI mode\n");
-
 	if (request_irq (pdev->irq, net2280_irq, IRQF_SHARED, driver_name, dev)
 			!= 0) {
 		ERROR (dev, "request interrupt %d failed\n", pdev->irq);
@@ -3724,8 +2797,7 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 
 	/* enable lower-overhead pci memory bursts during DMA */
-	if (dev->pdev->vendor == 0x17cc)
-		writel((1 << DMA_MEMORY_WRITE_AND_INVALIDATE_ENABLE)
+	writel ( (1 << DMA_MEMORY_WRITE_AND_INVALIDATE_ENABLE)
 			// 256 write retries may not be enough...
 			// | (1 << PCI_RETRY_ABORT_ENABLE)
 			| (1 << DMA_READ_MULTIPLE_ENABLE)
@@ -3742,10 +2814,10 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
 	INFO (dev, "%s\n", driver_desc);
 	INFO (dev, "irq %d, pci mem %p, chip rev %04x\n",
 			pdev->irq, base, dev->chiprev);
-	INFO(dev, "version: " DRIVER_VERSION "; dma %s %s\n",
-		use_dma	? (use_dma_chaining ? "chaining" : "enabled")
-			: "disabled",
-		dev->enhanced_mode ? "enhanced mode" : "legacy mode");
+	INFO (dev, "version: " DRIVER_VERSION "; dma %s\n",
+			use_dma
+				? (use_dma_chaining ? "chaining" : "enabled")
+				: "disabled");
 	retval = device_create_file (&pdev->dev, &dev_attr_registers);
 	if (retval) goto done;
 
@@ -3777,8 +2849,7 @@ static void net2280_shutdown (struct pci_dev *pdev)
 	writel (0, &dev->usb->usbctl);
 
 	/* Disable full-speed test mode */
-	if (dev->pdev->vendor == 0x17cc)
-		writel(0, &dev->usb->xcvrdiag);
+	writel(0, &dev->usb->xcvrdiag);
 }
 
 
@@ -3798,24 +2869,8 @@ static const struct pci_device_id pci_ids [] = { {
 	.device =	0x2282,
 	.subvendor =	PCI_ANY_ID,
 	.subdevice =	PCI_ANY_ID,
-},
-	{
-	 .class = ((PCI_CLASS_SERIAL_USB << 8) | 0xfe),
-	 .class_mask = ~0,
-	 .vendor = 0x10b5,
-	 .device = 0x3380,
-	 .subvendor = PCI_ANY_ID,
-	 .subdevice = PCI_ANY_ID,
-	 },
-	{
-	 .class = ((PCI_CLASS_SERIAL_USB << 8) | 0xfe),
-	 .class_mask = ~0,
-	 .vendor = 0x10b5,
-	 .device = 0x3382,
-	 .subvendor = PCI_ANY_ID,
-	 .subdevice = PCI_ANY_ID,
-	 },
-{ /* end: all zeroes */ }
+
+}, { /* end: all zeroes */ }
 };
 MODULE_DEVICE_TABLE (pci, pci_ids);