ARM: lh7a40x: remove unmaintained platform support

lh7a40x has only been receiving updates for updates to generic code.
The last involvement from the maintainer according to the git logs was
in 2006.  As such, it is a maintainence burden with no benefit.

This gets rid of two defconfigs.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

9 files changed, 0 insertions, 2700 deletions

diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index fceea5e4e02f..41b6e51188e4 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -31,7 +31,6 @@ config USB_ARCH_HAS_OHCI
 	# ARM:
 	default y if SA1111
 	default y if ARCH_OMAP
-	default y if ARCH_LH7A404
 	default y if ARCH_S3C2410
 	default y if PXA27x
 	default y if PXA3xx
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 1dc9739277b4..08a48ae23745 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -176,18 +176,6 @@ config USB_FSL_USB2
 	default USB_GADGET
 	select USB_GADGET_SELECTED
 
-config USB_GADGET_LH7A40X
-	boolean "LH7A40X"
-	depends on ARCH_LH7A40X
-	help
-	   This driver provides USB Device Controller driver for LH7A40x
-
-config USB_LH7A40X
-	tristate
-	depends on USB_GADGET_LH7A40X
-	default USB_GADGET
-	select USB_GADGET_SELECTED
-
 config USB_GADGET_OMAP
 	boolean "OMAP USB Device Controller"
 	depends on ARCH_OMAP
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 55f5e8ae5924..a2f7f9a4f4a8 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -11,7 +11,6 @@ obj-$(CONFIG_USB_PXA27X)	+= pxa27x_udc.o
 obj-$(CONFIG_USB_IMX)		+= imx_udc.o
 obj-$(CONFIG_USB_GOKU)		+= goku_udc.o
 obj-$(CONFIG_USB_OMAP)		+= omap_udc.o
-obj-$(CONFIG_USB_LH7A40X)	+= lh7a40x_udc.o
 obj-$(CONFIG_USB_S3C2410)	+= s3c2410_udc.o
 obj-$(CONFIG_USB_AT91)		+= at91_udc.o
 obj-$(CONFIG_USB_ATMEL_USBA)	+= atmel_usba_udc.o
diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h
index 5c2720d64ffa..e896f6359dfe 100644
--- a/drivers/usb/gadget/gadget_chips.h
+++ b/drivers/usb/gadget/gadget_chips.h
@@ -45,12 +45,6 @@
 #define	gadget_is_goku(g)	0
 #endif
 
-#ifdef CONFIG_USB_GADGET_LH7A40X
-#define	gadget_is_lh7a40x(g)	!strcmp("lh7a40x_udc", (g)->name)
-#else
-#define	gadget_is_lh7a40x(g)	0
-#endif
-
 #ifdef CONFIG_USB_GADGET_OMAP
 #define	gadget_is_omap(g)	!strcmp("omap_udc", (g)->name)
 #else
@@ -181,8 +175,6 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
 		return 0x06;
 	else if (gadget_is_omap(gadget))
 		return 0x08;
-	else if (gadget_is_lh7a40x(gadget))
-		return 0x09;
 	else if (gadget_is_pxa27x(gadget))
 		return 0x11;
 	else if (gadget_is_s3c2410(gadget))
diff --git a/drivers/usb/gadget/lh7a40x_udc.c b/drivers/usb/gadget/lh7a40x_udc.c
deleted file mode 100644
index 6b58bd8ce623..000000000000
--- a/drivers/usb/gadget/lh7a40x_udc.c
+++ /dev/null
@@ -1,2152 +0,0 @@
-/*
- * linux/drivers/usb/gadget/lh7a40x_udc.c
- * Sharp LH7A40x on-chip full speed USB device controllers
- *
- * Copyright (C) 2004 Mikko Lahteenmaki, Nordic ID
- * Copyright (C) 2004 Bo Henriksen, Nordic ID
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- */
-
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-
-#include "lh7a40x_udc.h"
-
-//#define DEBUG printk
-//#define DEBUG_EP0 printk
-//#define DEBUG_SETUP printk
-
-#ifndef DEBUG_EP0
-# define DEBUG_EP0(fmt,args...)
-#endif
-#ifndef DEBUG_SETUP
-# define DEBUG_SETUP(fmt,args...)
-#endif
-#ifndef DEBUG
-# define NO_STATES
-# define DEBUG(fmt,args...)
-#endif
-
-#define	DRIVER_DESC			"LH7A40x USB Device Controller"
-#define	DRIVER_VERSION		__DATE__
-
-#ifndef _BIT			/* FIXME - what happended to _BIT in 2.6.7bk18? */
-#define _BIT(x) (1<<(x))
-#endif
-
-struct lh7a40x_udc *the_controller;
-
-static const char driver_name[] = "lh7a40x_udc";
-static const char driver_desc[] = DRIVER_DESC;
-static const char ep0name[] = "ep0-control";
-
-/*
-  Local definintions.
-*/
-
-#ifndef NO_STATES
-static char *state_names[] = {
-	"WAIT_FOR_SETUP",
-	"DATA_STATE_XMIT",
-	"DATA_STATE_NEED_ZLP",
-	"WAIT_FOR_OUT_STATUS",
-	"DATA_STATE_RECV"
-};
-#endif
-
-/*
-  Local declarations.
-*/
-static int lh7a40x_ep_enable(struct usb_ep *ep,
-			     const struct usb_endpoint_descriptor *);
-static int lh7a40x_ep_disable(struct usb_ep *ep);
-static struct usb_request *lh7a40x_alloc_request(struct usb_ep *ep, gfp_t);
-static void lh7a40x_free_request(struct usb_ep *ep, struct usb_request *);
-static int lh7a40x_queue(struct usb_ep *ep, struct usb_request *, gfp_t);
-static int lh7a40x_dequeue(struct usb_ep *ep, struct usb_request *);
-static int lh7a40x_set_halt(struct usb_ep *ep, int);
-static int lh7a40x_fifo_status(struct usb_ep *ep);
-static void lh7a40x_fifo_flush(struct usb_ep *ep);
-static void lh7a40x_ep0_kick(struct lh7a40x_udc *dev, struct lh7a40x_ep *ep);
-static void lh7a40x_handle_ep0(struct lh7a40x_udc *dev, u32 intr);
-
-static void done(struct lh7a40x_ep *ep, struct lh7a40x_request *req,
-		 int status);
-static void pio_irq_enable(int bEndpointAddress);
-static void pio_irq_disable(int bEndpointAddress);
-static void stop_activity(struct lh7a40x_udc *dev,
-			  struct usb_gadget_driver *driver);
-static void flush(struct lh7a40x_ep *ep);
-static void udc_enable(struct lh7a40x_udc *dev);
-static void udc_set_address(struct lh7a40x_udc *dev, unsigned char address);
-
-static struct usb_ep_ops lh7a40x_ep_ops = {
-	.enable = lh7a40x_ep_enable,
-	.disable = lh7a40x_ep_disable,
-
-	.alloc_request = lh7a40x_alloc_request,
-	.free_request = lh7a40x_free_request,
-
-	.queue = lh7a40x_queue,
-	.dequeue = lh7a40x_dequeue,
-
-	.set_halt = lh7a40x_set_halt,
-	.fifo_status = lh7a40x_fifo_status,
-	.fifo_flush = lh7a40x_fifo_flush,
-};
-
-/* Inline code */
-
-static __inline__ int write_packet(struct lh7a40x_ep *ep,
-				   struct lh7a40x_request *req, int max)
-{
-	u8 *buf;
-	int length, count;
-	volatile u32 *fifo = (volatile u32 *)ep->fifo;
-
-	buf = req->req.buf + req->req.actual;
-	prefetch(buf);
-
-	length = req->req.length - req->req.actual;
-	length = min(length, max);
-	req->req.actual += length;
-
-	DEBUG("Write %d (max %d), fifo %p\n", length, max, fifo);
-
-	count = length;
-	while (count--) {
-		*fifo = *buf++;
-	}
-
-	return length;
-}
-
-static __inline__ void usb_set_index(u32 ep)
-{
-	*(volatile u32 *)io_p2v(USB_INDEX) = ep;
-}
-
-static __inline__ u32 usb_read(u32 port)
-{
-	return *(volatile u32 *)io_p2v(port);
-}
-
-static __inline__ void usb_write(u32 val, u32 port)
-{
-	*(volatile u32 *)io_p2v(port) = val;
-}
-
-static __inline__ void usb_set(u32 val, u32 port)
-{
-	volatile u32 *ioport = (volatile u32 *)io_p2v(port);
-	u32 after = (*ioport) | val;
-	*ioport = after;
-}
-
-static __inline__ void usb_clear(u32 val, u32 port)
-{
-	volatile u32 *ioport = (volatile u32 *)io_p2v(port);
-	u32 after = (*ioport) & ~val;
-	*ioport = after;
-}
-
-/*-------------------------------------------------------------------------*/
-
-#define GPIO_PORTC_DR 	(0x80000E08)
-#define GPIO_PORTC_DDR 	(0x80000E18)
-#define GPIO_PORTC_PDR 	(0x80000E70)
-
-/* get port C pin data register */
-#define get_portc_pdr(bit) 		((usb_read(GPIO_PORTC_PDR) & _BIT(bit)) != 0)
-/* get port C data direction register */
-#define get_portc_ddr(bit) 		((usb_read(GPIO_PORTC_DDR) & _BIT(bit)) != 0)
-/* set port C data register */
-#define set_portc_dr(bit, val) 	(val ? usb_set(_BIT(bit), GPIO_PORTC_DR) : usb_clear(_BIT(bit), GPIO_PORTC_DR))
-/* set port C data direction register */
-#define set_portc_ddr(bit, val) (val ? usb_set(_BIT(bit), GPIO_PORTC_DDR) : usb_clear(_BIT(bit), GPIO_PORTC_DDR))
-
-/*
- * LPD7A404 GPIO's:
- * Port C bit 1 = USB Port 1 Power Enable
- * Port C bit 2 = USB Port 1 Data Carrier Detect
- */
-#define is_usb_connected() 		get_portc_pdr(2)
-
-#ifdef CONFIG_USB_GADGET_DEBUG_FILES
-
-static const char proc_node_name[] = "driver/udc";
-
-static int
-udc_proc_read(char *page, char **start, off_t off, int count,
-	      int *eof, void *_dev)
-{
-	char *buf = page;
-	struct lh7a40x_udc *dev = _dev;
-	char *next = buf;
-	unsigned size = count;
-	unsigned long flags;
-	int t;
-
-	if (off != 0)
-		return 0;
-
-	local_irq_save(flags);
-
-	/* basic device status */
-	t = scnprintf(next, size,
-		      DRIVER_DESC "\n"
-		      "%s version: %s\n"
-		      "Gadget driver: %s\n"
-		      "Host: %s\n\n",
-		      driver_name, DRIVER_VERSION,
-		      dev->driver ? dev->driver->driver.name : "(none)",
-		      is_usb_connected()? "full speed" : "disconnected");
-	size -= t;
-	next += t;
-
-	t = scnprintf(next, size,
-		      "GPIO:\n"
-		      " Port C bit 1: %d, dir %d\n"
-		      " Port C bit 2: %d, dir %d\n\n",
-		      get_portc_pdr(1), get_portc_ddr(1),
-		      get_portc_pdr(2), get_portc_ddr(2)
-	    );
-	size -= t;
-	next += t;
-
-	t = scnprintf(next, size,
-		      "DCP pullup: %d\n\n",
-		      (usb_read(USB_PM) & PM_USB_DCP) != 0);
-	size -= t;
-	next += t;
-
-	local_irq_restore(flags);
-	*eof = 1;
-	return count - size;
-}
-
-#define create_proc_files() 	create_proc_read_entry(proc_node_name, 0, NULL, udc_proc_read, dev)
-#define remove_proc_files() 	remove_proc_entry(proc_node_name, NULL)
-
-#else	/* !CONFIG_USB_GADGET_DEBUG_FILES */
-
-#define create_proc_files() do {} while (0)
-#define remove_proc_files() do {} while (0)
-
-#endif	/* CONFIG_USB_GADGET_DEBUG_FILES */
-
-/*
- * 	udc_disable - disable USB device controller
- */
-static void udc_disable(struct lh7a40x_udc *dev)
-{
-	DEBUG("%s, %p\n", __func__, dev);
-
-	udc_set_address(dev, 0);
-
-	/* Disable interrupts */
-	usb_write(0, USB_IN_INT_EN);
-	usb_write(0, USB_OUT_INT_EN);
-	usb_write(0, USB_INT_EN);
-
-	/* Disable the USB */
-	usb_write(0, USB_PM);
-
-#ifdef CONFIG_ARCH_LH7A404
-	/* Disable USB power */
-	set_portc_dr(1, 0);
-#endif
-
-	/* if hardware supports it, disconnect from usb */
-	/* make_usb_disappear(); */
-
-	dev->ep0state = WAIT_FOR_SETUP;
-	dev->gadget.speed = USB_SPEED_UNKNOWN;
-	dev->usb_address = 0;
-}
-
-/*
- * 	udc_reinit - initialize software state
- */
-static void udc_reinit(struct lh7a40x_udc *dev)
-{
-	u32 i;
-
-	DEBUG("%s, %p\n", __func__, dev);
-
-	/* device/ep0 records init */
-	INIT_LIST_HEAD(&dev->gadget.ep_list);
-	INIT_LIST_HEAD(&dev->gadget.ep0->ep_list);
-	dev->ep0state = WAIT_FOR_SETUP;
-
-	/* basic endpoint records init */
-	for (i = 0; i < UDC_MAX_ENDPOINTS; i++) {
-		struct lh7a40x_ep *ep = &dev->ep[i];
-
-		if (i != 0)
-			list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
-
-		ep->desc = 0;
-		ep->stopped = 0;
-		INIT_LIST_HEAD(&ep->queue);
-		ep->pio_irqs = 0;
-	}
-
-	/* the rest was statically initialized, and is read-only */
-}
-
-#define BYTES2MAXP(x)	(x / 8)
-#define MAXP2BYTES(x)	(x * 8)
-
-/* until it's enabled, this UDC should be completely invisible
- * to any USB host.
- */
-static void udc_enable(struct lh7a40x_udc *dev)
-{
-	int ep;
-
-	DEBUG("%s, %p\n", __func__, dev);
-
-	dev->gadget.speed = USB_SPEED_UNKNOWN;
-
-#ifdef CONFIG_ARCH_LH7A404
-	/* Set Port C bit 1 & 2 as output */
-	set_portc_ddr(1, 1);
-	set_portc_ddr(2, 1);
-
-	/* Enable USB power */
-	set_portc_dr(1, 0);
-#endif
-
-	/*
-	 * C.f Chapter 18.1.3.1 Initializing the USB
-	 */
-
-	/* Disable the USB */
-	usb_clear(PM_USB_ENABLE, USB_PM);
-
-	/* Reset APB & I/O sides of the USB */
-	usb_set(USB_RESET_APB | USB_RESET_IO, USB_RESET);
-	mdelay(5);
-	usb_clear(USB_RESET_APB | USB_RESET_IO, USB_RESET);
-
-	/* Set MAXP values for each */
-	for (ep = 0; ep < UDC_MAX_ENDPOINTS; ep++) {
-		struct lh7a40x_ep *ep_reg = &dev->ep[ep];
-		u32 csr;
-
-		usb_set_index(ep);
-
-		switch (ep_reg->ep_type) {
-		case ep_bulk_in:
-		case ep_interrupt:
-			usb_clear(USB_IN_CSR2_USB_DMA_EN | USB_IN_CSR2_AUTO_SET,
-				  ep_reg->csr2);
-			/* Fall through */
-		case ep_control:
-			usb_write(BYTES2MAXP(ep_maxpacket(ep_reg)),
-				  USB_IN_MAXP);
-			break;
-		case ep_bulk_out:
-			usb_clear(USB_OUT_CSR2_USB_DMA_EN |
-				  USB_OUT_CSR2_AUTO_CLR, ep_reg->csr2);
-			usb_write(BYTES2MAXP(ep_maxpacket(ep_reg)),
-				  USB_OUT_MAXP);
-			break;
-		}
-
-		/* Read & Write CSR1, just in case */
-		csr = usb_read(ep_reg->csr1);
-		usb_write(csr, ep_reg->csr1);
-
-		flush(ep_reg);
-	}
-
-	/* Disable interrupts */
-	usb_write(0, USB_IN_INT_EN);
-	usb_write(0, USB_OUT_INT_EN);
-	usb_write(0, USB_INT_EN);
-
-	/* Enable interrupts */
-	usb_set(USB_IN_INT_EP0, USB_IN_INT_EN);
-	usb_set(USB_INT_RESET_INT | USB_INT_RESUME_INT, USB_INT_EN);
-	/* Dont enable rest of the interrupts */
-	/* usb_set(USB_IN_INT_EP3 | USB_IN_INT_EP1 | USB_IN_INT_EP0, USB_IN_INT_EN);
-	   usb_set(USB_OUT_INT_EP2, USB_OUT_INT_EN); */
-
-	/* Enable SUSPEND */
-	usb_set(PM_ENABLE_SUSPEND, USB_PM);
-
-	/* Enable the USB */
-	usb_set(PM_USB_ENABLE, USB_PM);
-
-#ifdef CONFIG_ARCH_LH7A404
-	/* NOTE: DOES NOT WORK! */
-	/* Let host detect UDC:
-	 * Software must write a 0 to the PMR:DCP_CTRL bit to turn this
-	 * transistor on and pull the USBDP pin HIGH.
-	 */
-	/* usb_clear(PM_USB_DCP, USB_PM);
-	   usb_set(PM_USB_DCP, USB_PM); */
-#endif
-}
-
-/*
-  Register entry point for the peripheral controller driver.
-*/
-int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
-{
-	struct lh7a40x_udc *dev = the_controller;
-	int retval;
-
-	DEBUG("%s: %s\n", __func__, driver->driver.name);
-
-	if (!driver
-			|| driver->speed != USB_SPEED_FULL
-			|| !bind
-			|| !driver->disconnect
-			|| !driver->setup)
-		return -EINVAL;
-	if (!dev)
-		return -ENODEV;
-	if (dev->driver)
-		return -EBUSY;
-
-	/* first hook up the driver ... */
-	dev->driver = driver;
-	dev->gadget.dev.driver = &driver->driver;
-
-	device_add(&dev->gadget.dev);
-	retval = bind(&dev->gadget);
-	if (retval) {
-		printk(KERN_WARNING "%s: bind to driver %s --> error %d\n",
-		       dev->gadget.name, driver->driver.name, retval);
-		device_del(&dev->gadget.dev);
-
-		dev->driver = 0;
-		dev->gadget.dev.driver = 0;
-		return retval;
-	}
-
-	/* ... then enable host detection and ep0; and we're ready
-	 * for set_configuration as well as eventual disconnect.
-	 * NOTE:  this shouldn't power up until later.
-	 */
-	printk(KERN_WARNING "%s: registered gadget driver '%s'\n",
-	       dev->gadget.name, driver->driver.name);
-
-	udc_enable(dev);
-
-	return 0;
-}
-EXPORT_SYMBOL(usb_gadget_probe_driver);
-
-/*
-  Unregister entry point for the peripheral controller driver.
-*/
-int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
-{
-	struct lh7a40x_udc *dev = the_controller;
-	unsigned long flags;
-
-	if (!dev)
-		return -ENODEV;
-	if (!driver || driver != dev->driver || !driver->unbind)
-		return -EINVAL;
-
-	spin_lock_irqsave(&dev->lock, flags);
-	dev->driver = 0;
-	stop_activity(dev, driver);
-	spin_unlock_irqrestore(&dev->lock, flags);
-
-	driver->unbind(&dev->gadget);
-	dev->gadget.dev.driver = NULL;
-	device_del(&dev->gadget.dev);
-
-	udc_disable(dev);
-
-	DEBUG("unregistered gadget driver '%s'\n", driver->driver.name);
-	return 0;
-}
-
-EXPORT_SYMBOL(usb_gadget_unregister_driver);
-
-/*-------------------------------------------------------------------------*/
-
-/** Write request to FIFO (max write == maxp size)
- *  Return:  0 = still running, 1 = completed, negative = errno
- *  NOTE: INDEX register must be set for EP
- */
-static int write_fifo(struct lh7a40x_ep *ep, struct lh7a40x_request *req)
-{
-	u32 max;
-	u32 csr;
-
-	max = le16_to_cpu(ep->desc->wMaxPacketSize);
-
-	csr = usb_read(ep->csr1);
-	DEBUG("CSR: %x %d\n", csr, csr & USB_IN_CSR1_FIFO_NOT_EMPTY);
-
-	if (!(csr & USB_IN_CSR1_FIFO_NOT_EMPTY)) {
-		unsigned count;
-		int is_last, is_short;
-
-		count = write_packet(ep, req, max);
-		usb_set(USB_IN_CSR1_IN_PKT_RDY, ep->csr1);
-
-		/* last packet is usually short (or a zlp) */
-		if (unlikely(count != max))
-			is_last = is_short = 1;
-		else {
-			if (likely(req->req.length != req->req.actual)
-			    || req->req.zero)
-				is_last = 0;
-			else
-				is_last = 1;
-			/* interrupt/iso maxpacket may not fill the fifo */
-			is_short = unlikely(max < ep_maxpacket(ep));
-		}
-
-		DEBUG("%s: wrote %s %d bytes%s%s %d left %p\n", __func__,
-		      ep->ep.name, count,
-		      is_last ? "/L" : "", is_short ? "/S" : "",
-		      req->req.length - req->req.actual, req);
-
-		/* requests complete when all IN data is in the FIFO */
-		if (is_last) {
-			done(ep, req, 0);
-			if (list_empty(&ep->queue)) {
-				pio_irq_disable(ep_index(ep));
-			}
-			return 1;
-		}
-	} else {
-		DEBUG("Hmm.. %d ep FIFO is not empty!\n", ep_index(ep));
-	}
-
-	return 0;
-}
-
-/** Read to request from FIFO (max read == bytes in fifo)
- *  Return:  0 = still running, 1 = completed, negative = errno
- *  NOTE: INDEX register must be set for EP
- */
-static int read_fifo(struct lh7a40x_ep *ep, struct lh7a40x_request *req)
-{
-	u32 csr;
-	u8 *buf;
-	unsigned bufferspace, count, is_short;
-	volatile u32 *fifo = (volatile u32 *)ep->fifo;
-
-	/* make sure there's a packet in the FIFO. */
-	csr = usb_read(ep->csr1);
-	if (!(csr & USB_OUT_CSR1_OUT_PKT_RDY)) {
-		DEBUG("%s: Packet NOT ready!\n", __func__);
-		return -EINVAL;
-	}
-
-	buf = req->req.buf + req->req.actual;
-	prefetchw(buf);
-	bufferspace = req->req.length - req->req.actual;
-
-	/* read all bytes from this packet */
-	count = usb_read(USB_OUT_FIFO_WC1);
-	req->req.actual += min(count, bufferspace);
-
-	is_short = (count < ep->ep.maxpacket);
-	DEBUG("read %s %02x, %d bytes%s req %p %d/%d\n",
-	      ep->ep.name, csr, count,
-	      is_short ? "/S" : "", req, req->req.actual, req->req.length);
-
-	while (likely(count-- != 0)) {
-		u8 byte = (u8) (*fifo & 0xff);
-
-		if (unlikely(bufferspace == 0)) {
-			/* this happens when the driver's buffer
-			 * is smaller than what the host sent.
-			 * discard the extra data.
-			 */
-			if (req->req.status != -EOVERFLOW)
-				printk(KERN_WARNING "%s overflow %d\n",
-				       ep->ep.name, count);
-			req->req.status = -EOVERFLOW;
-		} else {
-			*buf++ = byte;
-			bufferspace--;
-		}
-	}
-
-	usb_clear(USB_OUT_CSR1_OUT_PKT_RDY, ep->csr1);
-
-	/* completion */
-	if (is_short || req->req.actual == req->req.length) {
-		done(ep, req, 0);
-		usb_set(USB_OUT_CSR1_FIFO_FLUSH, ep->csr1);
-
-		if (list_empty(&ep->queue))
-			pio_irq_disable(ep_index(ep));
-		return 1;
-	}
-
-	/* finished that packet.  the next one may be waiting... */
-	return 0;
-}
-
-/*
- *	done - retire a request; caller blocked irqs
- *  INDEX register is preserved to keep same
- */
-static void done(struct lh7a40x_ep *ep, struct lh7a40x_request *req, int status)
-{
-	unsigned int stopped = ep->stopped;
-	u32 index;
-
-	DEBUG("%s, %p\n", __func__, ep);
-	list_del_init(&req->queue);
-
-	if (likely(req->req.status == -EINPROGRESS))
-		req->req.status = status;
-	else
-		status = req->req.status;
-
-	if (status && status != -ESHUTDOWN)
-		DEBUG("complete %s req %p stat %d len %u/%u\n",
-		      ep->ep.name, &req->req, status,
-		      req->req.actual, req->req.length);
-
-	/* don't modify queue heads during completion callback */
-	ep->stopped = 1;
-	/* Read current index (completion may modify it) */
-	index = usb_read(USB_INDEX);
-
-	spin_unlock(&ep->dev->lock);
-	req->req.complete(&ep->ep, &req->req);
-	spin_lock(&ep->dev->lock);
-
-	/* Restore index */
-	usb_set_index(index);
-	ep->stopped = stopped;
-}
-
-/** Enable EP interrupt */
-static void pio_irq_enable(int ep)
-{
-	DEBUG("%s: %d\n", __func__, ep);
-
-	switch (ep) {
-	case 1:
-		usb_set(USB_IN_INT_EP1, USB_IN_INT_EN);
-		break;
-	case 2:
-		usb_set(USB_OUT_INT_EP2, USB_OUT_INT_EN);
-		break;
-	case 3:
-		usb_set(USB_IN_INT_EP3, USB_IN_INT_EN);
-		break;
-	default:
-		DEBUG("Unknown endpoint: %d\n", ep);
-		break;
-	}
-}
-
-/** Disable EP interrupt */
-static void pio_irq_disable(int ep)
-{
-	DEBUG("%s: %d\n", __func__, ep);
-
-	switch (ep) {
-	case 1:
-		usb_clear(USB_IN_INT_EP1, USB_IN_INT_EN);
-		break;
-	case 2:
-		usb_clear(USB_OUT_INT_EP2, USB_OUT_INT_EN);
-		break;
-	case 3:
-		usb_clear(USB_IN_INT_EP3, USB_IN_INT_EN);
-		break;
-	default:
-		DEBUG("Unknown endpoint: %d\n", ep);
-		break;
-	}
-}
-
-/*
- * 	nuke - dequeue ALL requests
- */
-void nuke(struct lh7a40x_ep *ep, int status)
-{
-	struct lh7a40x_request *req;
-
-	DEBUG("%s, %p\n", __func__, ep);
-
-	/* Flush FIFO */
-	flush(ep);
-
-	/* called with irqs blocked */
-	while (!list_empty(&ep->queue)) {
-		req = list_entry(ep->queue.next, struct lh7a40x_request, queue);
-		done(ep, req, status);
-	}
-
-	/* Disable IRQ if EP is enabled (has descriptor) */
-	if (ep->desc)
-		pio_irq_disable(ep_index(ep));
-}
-
-/*
-void nuke_all(struct lh7a40x_udc *dev)
-{
-	int n;
-	for(n=0; n<UDC_MAX_ENDPOINTS; n++) {
-		struct lh7a40x_ep *ep = &dev->ep[n];
-		usb_set_index(n);
-		nuke(ep, 0);
-	}
-}*/
-
-/*
-static void flush_all(struct lh7a40x_udc *dev)
-{
-	int n;
-    for (n = 0; n < UDC_MAX_ENDPOINTS; n++)
-    {
-		struct lh7a40x_ep *ep = &dev->ep[n];
-		flush(ep);
-    }
-}
-*/
-
-/** Flush EP
- * NOTE: INDEX register must be set before this call
- */
-static void flush(struct lh7a40x_ep *ep)
-{
-	DEBUG("%s, %p\n", __func__, ep);
-
-	switch (ep->ep_type) {
-	case ep_control:
-		/* check, by implication c.f. 15.1.2.11 */
-		break;
-
-	case ep_bulk_in:
-	case ep_interrupt:
-		/* if(csr & USB_IN_CSR1_IN_PKT_RDY) */
-		usb_set(USB_IN_CSR1_FIFO_FLUSH, ep->csr1);
-		break;
-
-	case ep_bulk_out:
-		/* if(csr & USB_OUT_CSR1_OUT_PKT_RDY) */
-		usb_set(USB_OUT_CSR1_FIFO_FLUSH, ep->csr1);
-		break;
-	}
-}
-
-/**
- * lh7a40x_in_epn - handle IN interrupt
- */
-static void lh7a40x_in_epn(struct lh7a40x_udc *dev, u32 ep_idx, u32 intr)
-{
-	u32 csr;
-	struct lh7a40x_ep *ep = &dev->ep[ep_idx];
-	struct lh7a40x_request *req;
-
-	usb_set_index(ep_idx);
-
-	csr = usb_read(ep->csr1);
-	DEBUG("%s: %d, csr %x\n", __func__, ep_idx, csr);
-
-	if (csr & USB_IN_CSR1_SENT_STALL) {
-		DEBUG("USB_IN_CSR1_SENT_STALL\n");
-		usb_set(USB_IN_CSR1_SENT_STALL /*|USB_IN_CSR1_SEND_STALL */ ,
-			ep->csr1);
-		return;
-	}
-
-	if (!ep->desc) {
-		DEBUG("%s: NO EP DESC\n", __func__);
-		return;
-	}
-
-	if (list_empty(&ep->queue))
-		req = 0;
-	else
-		req = list_entry(ep->queue.next, struct lh7a40x_request, queue);
-
-	DEBUG("req: %p\n", req);
-
-	if (!req)
-		return;
-
-	write_fifo(ep, req);
-}
-
-/* ********************************************************************************************* */
-/* Bulk OUT (recv)
- */
-
-static void lh7a40x_out_epn(struct lh7a40x_udc *dev, u32 ep_idx, u32 intr)
-{
-	struct lh7a40x_ep *ep = &dev->ep[ep_idx];
-	struct lh7a40x_request *req;
-
-	DEBUG("%s: %d\n", __func__, ep_idx);
-
-	usb_set_index(ep_idx);
-
-	if (ep->desc) {
-		u32 csr;
-		csr = usb_read(ep->csr1);
-
-		while ((csr =
-			usb_read(ep->
-				 csr1)) & (USB_OUT_CSR1_OUT_PKT_RDY |
-					   USB_OUT_CSR1_SENT_STALL)) {
-			DEBUG("%s: %x\n", __func__, csr);
-
-			if (csr & USB_OUT_CSR1_SENT_STALL) {
-				DEBUG("%s: stall sent, flush fifo\n",
-				      __func__);
-				/* usb_set(USB_OUT_CSR1_FIFO_FLUSH, ep->csr1); */
-				flush(ep);
-			} else if (csr & USB_OUT_CSR1_OUT_PKT_RDY) {
-				if (list_empty(&ep->queue))
-					req = 0;
-				else
-					req =
-					    list_entry(ep->queue.next,
-						       struct lh7a40x_request,
-						       queue);
-
-				if (!req) {
-					printk(KERN_WARNING
-					       "%s: NULL REQ %d\n",
-					       __func__, ep_idx);
-					flush(ep);
-					break;
-				} else {
-					read_fifo(ep, req);
-				}
-			}
-
-		}
-
-	} else {
-		/* Throw packet away.. */
-		printk(KERN_WARNING "%s: No descriptor?!?\n", __func__);
-		flush(ep);
-	}
-}
-
-static void stop_activity(struct lh7a40x_udc *dev,
-			  struct usb_gadget_driver *driver)
-{
-	int i;
-
-	/* don't disconnect drivers more than once */
-	if (dev->gadget.speed == USB_SPEED_UNKNOWN)
-		driver = 0;
-	dev->gadget.speed = USB_SPEED_UNKNOWN;
-
-	/* prevent new request submissions, kill any outstanding requests  */
-	for (i = 0; i < UDC_MAX_ENDPOINTS; i++) {
-		struct lh7a40x_ep *ep = &dev->ep[i];
-		ep->stopped = 1;
-
-		usb_set_index(i);
-		nuke(ep, -ESHUTDOWN);
-	}
-
-	/* report disconnect; the driver is already quiesced */
-	if (driver) {
-		spin_unlock(&dev->lock);
-		driver->disconnect(&dev->gadget);
-		spin_lock(&dev->lock);
-	}
-
-	/* re-init driver-visible data structures */
-	udc_reinit(dev);
-}
-
-/** Handle USB RESET interrupt
- */
-static void lh7a40x_reset_intr(struct lh7a40x_udc *dev)
-{
-#if 0				/* def CONFIG_ARCH_LH7A404 */
-	/* Does not work always... */
-
-	DEBUG("%s: %d\n", __func__, dev->usb_address);
-
-	if (!dev->usb_address) {
-		/*usb_set(USB_RESET_IO, USB_RESET);
-		   mdelay(5);
-		   usb_clear(USB_RESET_IO, USB_RESET); */
-		return;
-	}
-	/* Put the USB controller into reset. */
-	usb_set(USB_RESET_IO, USB_RESET);
-
-	/* Set Device ID to 0 */
-	udc_set_address(dev, 0);
-
-	/* Let PLL2 settle down */
-	mdelay(5);
-
-	/* Release the USB controller from reset */
-	usb_clear(USB_RESET_IO, USB_RESET);
-
-	/* Re-enable UDC */
-	udc_enable(dev);
-
-#endif
-	dev->gadget.speed = USB_SPEED_FULL;
-}
-
-/*
- *	lh7a40x usb client interrupt handler.
- */
-static irqreturn_t lh7a40x_udc_irq(int irq, void *_dev)
-{
-	struct lh7a40x_udc *dev = _dev;
-
-	DEBUG("\n\n");
-
-	spin_lock(&dev->lock);
-
-	for (;;) {
-		u32 intr_in = usb_read(USB_IN_INT);
-		u32 intr_out = usb_read(USB_OUT_INT);
-		u32 intr_int = usb_read(USB_INT);
-
-		/* Test also against enable bits.. (lh7a40x errata).. Sigh.. */
-		u32 in_en = usb_read(USB_IN_INT_EN);
-		u32 out_en = usb_read(USB_OUT_INT_EN);
-
-		if (!intr_out && !intr_in && !intr_int)
-			break;
-
-		DEBUG("%s (on state %s)\n", __func__,
-		      state_names[dev->ep0state]);
-		DEBUG("intr_out = %x\n", intr_out);
-		DEBUG("intr_in  = %x\n", intr_in);
-		DEBUG("intr_int = %x\n", intr_int);
-
-		if (intr_in) {
-			usb_write(intr_in, USB_IN_INT);
-
-			if ((intr_in & USB_IN_INT_EP1)
-			    && (in_en & USB_IN_INT_EP1)) {
-				DEBUG("USB_IN_INT_EP1\n");
-				lh7a40x_in_epn(dev, 1, intr_in);
-			}
-			if ((intr_in & USB_IN_INT_EP3)
-			    && (in_en & USB_IN_INT_EP3)) {
-				DEBUG("USB_IN_INT_EP3\n");
-				lh7a40x_in_epn(dev, 3, intr_in);
-			}
-			if (intr_in & USB_IN_INT_EP0) {
-				DEBUG("USB_IN_INT_EP0 (control)\n");
-				lh7a40x_handle_ep0(dev, intr_in);
-			}
-		}
-
-		if (intr_out) {
-			usb_write(intr_out, USB_OUT_INT);
-
-			if ((intr_out & USB_OUT_INT_EP2)
-			    && (out_en & USB_OUT_INT_EP2)) {
-				DEBUG("USB_OUT_INT_EP2\n");
-				lh7a40x_out_epn(dev, 2, intr_out);
-			}
-		}
-
-		if (intr_int) {
-			usb_write(intr_int, USB_INT);
-
-			if (intr_int & USB_INT_RESET_INT) {
-				lh7a40x_reset_intr(dev);
-			}
-
-			if (intr_int & USB_INT_RESUME_INT) {
-				DEBUG("USB resume\n");
-
-				if (dev->gadget.speed != USB_SPEED_UNKNOWN
-				    && dev->driver
-				    && dev->driver->resume
-				    && is_usb_connected()) {
-					dev->driver->resume(&dev->gadget);
-				}
-			}
-
-			if (intr_int & USB_INT_SUSPEND_INT) {
-				DEBUG("USB suspend%s\n",
-				      is_usb_connected()? "" : "+disconnect");
-				if (!is_usb_connected()) {
-					stop_activity(dev, dev->driver);
-				} else if (dev->gadget.speed !=
-					   USB_SPEED_UNKNOWN && dev->driver
-					   && dev->driver->suspend) {
-					dev->driver->suspend(&dev->gadget);
-				}
-			}
-
-		}
-	}
-
-	spin_unlock(&dev->lock);
-
-	return IRQ_HANDLED;
-}
-
-static int lh7a40x_ep_enable(struct usb_ep *_ep,
-			     const struct usb_endpoint_descriptor *desc)
-{
-	struct lh7a40x_ep *ep;
-	struct lh7a40x_udc *dev;
-	unsigned long flags;
-
-	DEBUG("%s, %p\n", __func__, _ep);
-
-	ep = container_of(_ep, struct lh7a40x_ep, ep);
-	if (!_ep || !desc || ep->desc || _ep->name == ep0name
-	    || desc->bDescriptorType != USB_DT_ENDPOINT
-	    || ep->bEndpointAddress != desc->bEndpointAddress
-	    || ep_maxpacket(ep) < le16_to_cpu(desc->wMaxPacketSize)) {
-		DEBUG("%s, bad ep or descriptor\n", __func__);
-		return -EINVAL;
-	}
-
-	/* xfer types must match, except that interrupt ~= bulk */
-	if (ep->bmAttributes != desc->bmAttributes
-	    && ep->bmAttributes != USB_ENDPOINT_XFER_BULK
-	    && desc->bmAttributes != USB_ENDPOINT_XFER_INT) {
-		DEBUG("%s, %s type mismatch\n", __func__, _ep->name);
-		return -EINVAL;
-	}
-
-	/* hardware _could_ do smaller, but driver doesn't */
-	if ((desc->bmAttributes == USB_ENDPOINT_XFER_BULK
-	     && le16_to_cpu(desc->wMaxPacketSize) != ep_maxpacket(ep))
-	    || !desc->wMaxPacketSize) {
-		DEBUG("%s, bad %s maxpacket\n", __func__, _ep->name);
-		return -ERANGE;
-	}
-
-	dev = ep->dev;
-	if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN) {
-		DEBUG("%s, bogus device state\n", __func__);
-		return -ESHUTDOWN;
-	}
-
-	spin_lock_irqsave(&ep->dev->lock, flags);
-
-	ep->stopped = 0;
-	ep->desc = desc;
-	ep->pio_irqs = 0;
-	ep->ep.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
-
-	spin_unlock_irqrestore