Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (32 commits)
  USB GADGET/PERIPHERAL: g_file_storage Bulk-Only Transport compliance, clear-feature ignore
  USB GADGET/PERIPHERAL: g_file_storage Bulk-Only Transport compliance
  usb_serial: some coding style fixes
  USB: Remove redundant dependencies on USB_ATM.
  USB: UHCI: disable remote wakeup when it's not needed
  USB: OHCI: work around bogus compiler warning
  USB: add Cypress c67x00 OTG controller HCD driver
  USB: add Cypress c67x00 OTG controller core driver
  USB: add Cypress c67x00 low level interface code
  USB: airprime: unlock mutex instead of trying to lock it again
  USB: storage: Update mailling list address
  USB: storage: UNUSUAL_DEVS() for PanDigital Picture frame.
  USB: Add the USB 2.0 extension descriptor.
  USB: add more FTDI device ids
  USB: fix cannot work usb storage when using ohci-sm501
  usb: gadget zero timer init fix
  usb: gadget zero style fixups (mostly whitespace)
  usb serial gadget: CDC ACM fixes
  usb: pxa27x_udc driver
  USB: INTOVA Pixtreme camera mass storage device
  ...

8 files changed, 2839 insertions, 20 deletions

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 0b87480dd71..33b467a8352 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -4,6 +4,19 @@
 comment "USB Host Controller Drivers"
 	depends on USB
 
+config USB_C67X00_HCD
+	tristate "Cypress C67x00 HCD support"
+	depends on USB
+	help
+	  The Cypress C67x00 (EZ-Host/EZ-OTG) chips are dual-role
+	  host/peripheral/OTG USB controllers.
+
+	  Enable this option to support this chip in host controller mode.
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called c67x00.
+
 config USB_EHCI_HCD
 	tristate "EHCI HCD (USB 2.0) support"
 	depends on USB && USB_ARCH_HAS_EHCI
@@ -95,6 +108,32 @@ config USB_ISP116X_HCD
 	  To compile this driver as a module, choose M here: the
 	  module will be called isp116x-hcd.
 
+config USB_ISP1760_HCD
+	tristate "ISP 1760 HCD support"
+	depends on USB && EXPERIMENTAL
+	---help---
+	  The ISP1760 chip is a USB 2.0 host controller.
+
+	  This driver does not support isochronous transfers or OTG.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called isp1760-hcd.
+
+config USB_ISP1760_PCI
+	bool "Support for the PCI bus"
+	depends on USB_ISP1760_HCD && PCI
+	---help---
+	  Enables support for the device present on the PCI bus.
+	  This should only be required if you happen to have the eval kit from
+	  NXP and you are going to test it.
+
+config USB_ISP1760_OF
+	bool "Support for the OF platform bus"
+	depends on USB_ISP1760_HCD && OF
+	---help---
+	  Enables support for the device present on the PowerPC
+	  OpenFirmware platform bus.
+
 config USB_OHCI_HCD
 	tristate "OHCI HCD support"
 	depends on USB && USB_ARCH_HAS_OHCI
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index bb8e9d44f37..f1edda2dcfd 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -6,6 +6,8 @@ ifeq ($(CONFIG_USB_DEBUG),y)
 	EXTRA_CFLAGS		+= -DDEBUG
 endif
 
+isp1760-objs := isp1760-hcd.o isp1760-if.o
+
 obj-$(CONFIG_PCI)		+= pci-quirks.o
 
 obj-$(CONFIG_USB_EHCI_HCD)	+= ehci-hcd.o
@@ -16,4 +18,4 @@ obj-$(CONFIG_USB_SL811_HCD)	+= sl811-hcd.o
 obj-$(CONFIG_USB_SL811_CS)	+= sl811_cs.o
 obj-$(CONFIG_USB_U132_HCD)	+= u132-hcd.o
 obj-$(CONFIG_USB_R8A66597_HCD)	+= r8a66597-hcd.o
-
+obj-$(CONFIG_USB_ISP1760_HCD)	+= isp1760.o
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
new file mode 100644
index 00000000000..4ba96c1e060
--- /dev/null
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -0,0 +1,2231 @@
+/*
+ * Driver for the NXP ISP1760 chip
+ *
+ * However, the code might contain some bugs. What doesn't work for sure is:
+ * - ISO
+ * - OTG
+ e The interrupt line is configured as active low, level.
+ *
+ * (c) 2007 Sebastian Siewior <bigeasy@linutronix.de>
+ *
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/list.h>
+#include <linux/usb.h>
+#include <linux/debugfs.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+#include <asm/unaligned.h>
+
+#include "../core/hcd.h"
+#include "isp1760-hcd.h"
+
+static struct kmem_cache *qtd_cachep;
+static struct kmem_cache *qh_cachep;
+
+struct isp1760_hcd {
+	u32 hcs_params;
+	spinlock_t		lock;
+	struct inter_packet_info atl_ints[32];
+	struct inter_packet_info int_ints[32];
+	struct memory_chunk memory_pool[BLOCKS];
+
+	/* periodic schedule support */
+#define	DEFAULT_I_TDPS		1024
+	unsigned		periodic_size;
+	unsigned		i_thresh;
+	unsigned long		reset_done;
+	unsigned long		next_statechange;
+};
+
+static inline struct isp1760_hcd *hcd_to_priv(struct usb_hcd *hcd)
+{
+	return (struct isp1760_hcd *) (hcd->hcd_priv);
+}
+static inline struct usb_hcd *priv_to_hcd(struct isp1760_hcd *priv)
+{
+	return container_of((void *) priv, struct usb_hcd, hcd_priv);
+}
+
+/* Section 2.2 Host Controller Capability Registers */
+#define HC_LENGTH(p)		(((p)>>00)&0x00ff)	/* bits 7:0 */
+#define HC_VERSION(p)		(((p)>>16)&0xffff)	/* bits 31:16 */
+#define HCS_INDICATOR(p)	((p)&(1 << 16))	/* true: has port indicators */
+#define HCS_PPC(p)		((p)&(1 << 4))	/* true: port power control */
+#define HCS_N_PORTS(p)		(((p)>>0)&0xf)	/* bits 3:0, ports on HC */
+#define HCC_ISOC_CACHE(p)       ((p)&(1 << 7))  /* true: can cache isoc frame */
+#define HCC_ISOC_THRES(p)       (((p)>>4)&0x7)  /* bits 6:4, uframes cached */
+
+/* Section 2.3 Host Controller Operational Registers */
+#define CMD_LRESET	(1<<7)		/* partial reset (no ports, etc) */
+#define CMD_RESET	(1<<1)		/* reset HC not bus */
+#define CMD_RUN		(1<<0)		/* start/stop HC */
+#define STS_PCD		(1<<2)		/* port change detect */
+#define FLAG_CF		(1<<0)		/* true: we'll support "high speed" */
+
+#define PORT_OWNER	(1<<13)		/* true: companion hc owns this port */
+#define PORT_POWER	(1<<12)		/* true: has power (see PPC) */
+#define PORT_USB11(x) (((x) & (3 << 10)) == (1 << 10))	/* USB 1.1 device */
+#define PORT_RESET	(1<<8)		/* reset port */
+#define PORT_SUSPEND	(1<<7)		/* suspend port */
+#define PORT_RESUME	(1<<6)		/* resume it */
+#define PORT_PE		(1<<2)		/* port enable */
+#define PORT_CSC	(1<<1)		/* connect status change */
+#define PORT_CONNECT	(1<<0)		/* device connected */
+#define PORT_RWC_BITS   (PORT_CSC)
+
+struct isp1760_qtd {
+	struct isp1760_qtd *hw_next;
+	u8 packet_type;
+	u8 toggle;
+
+	void *data_buffer;
+	/* the rest is HCD-private */
+	struct list_head qtd_list;
+	struct urb *urb;
+	size_t length;
+
+	/* isp special*/
+	u32 status;
+#define URB_COMPLETE_NOTIFY	(1 << 0)
+#define URB_ENQUEUED		(1 << 1)
+#define URB_TYPE_ATL		(1 << 2)
+#define URB_TYPE_INT		(1 << 3)
+};
+
+struct isp1760_qh {
+	/* first part defined by EHCI spec */
+	struct list_head qtd_list;
+	struct isp1760_hcd *priv;
+
+	/* periodic schedule info */
+	unsigned short period;		/* polling interval */
+	struct usb_device *dev;
+
+	u32 toggle;
+	u32 ping;
+};
+
+#define ehci_port_speed(priv, portsc) (1 << USB_PORT_FEAT_HIGHSPEED)
+
+static unsigned int isp1760_readl(__u32 __iomem *regs)
+{
+	return readl(regs);
+}
+
+static void isp1760_writel(const unsigned int val, __u32 __iomem *regs)
+{
+	writel(val, regs);
+}
+
+/*
+ * The next two copy via MMIO data to/from the device. memcpy_{to|from}io()
+ * doesn't quite work because some people have to enforce 32-bit access
+ */
+static void priv_read_copy(struct isp1760_hcd *priv, u32 *src,
+		__u32 __iomem *dst, u32 offset, u32 len)
+{
+	struct usb_hcd *hcd = priv_to_hcd(priv);
+	u32 val;
+	u8 *buff8;
+
+	if (!src) {
+		printk(KERN_ERR "ERROR: buffer: %p len: %d\n", src, len);
+		return;
+	}
+	isp1760_writel(offset,  hcd->regs + HC_MEMORY_REG);
+	/* XXX
+	 * 90nsec delay, the spec says something how this could be avoided.
+	 */
+	mdelay(1);
+
+	while (len >= 4) {
+		*src = __raw_readl(dst);
+		len -= 4;
+		src++;
+		dst++;
+	}
+
+	if (!len)
+		return;
+
+	/* in case we have 3, 2 or 1 by left. The dst buffer may not be fully
+	 * allocated.
+	 */
+	val = isp1760_readl(dst);
+
+	buff8 = (u8 *)src;
+	while (len) {
+
+		*buff8 = val;
+		val >>= 8;
+		len--;
+		buff8++;
+	}
+}
+
+static void priv_write_copy(const struct isp1760_hcd *priv, const u32 *src,
+		__u32 __iomem *dst, u32 len)
+{
+	while (len >= 4) {
+		__raw_writel(*src, dst);
+		len -= 4;
+		src++;
+		dst++;
+	}
+
+	if (!len)
+		return;
+	/* in case we have 3, 2 or 1 by left. The buffer is allocated and the
+	 * extra bytes should not be read by the HW
+	 */
+
+	__raw_writel(*src, dst);
+}
+
+/* memory management of the 60kb on the chip from 0x1000 to 0xffff */
+static void init_memory(struct isp1760_hcd *priv)
+{
+	int i;
+	u32 payload;
+
+	payload = 0x1000;
+	for (i = 0; i < BLOCK_1_NUM; i++) {
+		priv->memory_pool[i].start = payload;
+		priv->memory_pool[i].size = BLOCK_1_SIZE;
+		priv->memory_pool[i].free = 1;
+		payload += priv->memory_pool[i].size;
+	}
+
+
+	for (i = BLOCK_1_NUM; i < BLOCK_1_NUM + BLOCK_2_NUM; i++) {
+		priv->memory_pool[i].start = payload;
+		priv->memory_pool[i].size = BLOCK_2_SIZE;
+		priv->memory_pool[i].free = 1;
+		payload += priv->memory_pool[i].size;
+	}
+
+
+	for (i = BLOCK_1_NUM + BLOCK_2_NUM; i < BLOCKS; i++) {
+		priv->memory_pool[i].start = payload;
+		priv->memory_pool[i].size = BLOCK_3_SIZE;
+		priv->memory_pool[i].free = 1;
+		payload += priv->memory_pool[i].size;
+	}
+
+	BUG_ON(payload - priv->memory_pool[i - 1].size > PAYLOAD_SIZE);
+}
+
+static u32 alloc_mem(struct isp1760_hcd *priv, u32 size)
+{
+	int i;
+
+	if (!size)
+		return ISP1760_NULL_POINTER;
+
+	for (i = 0; i < BLOCKS; i++) {
+		if (priv->memory_pool[i].size >= size &&
+				priv->memory_pool[i].free) {
+
+			priv->memory_pool[i].free = 0;
+			return priv->memory_pool[i].start;
+		}
+	}
+
+	printk(KERN_ERR "ISP1760 MEM: can not allocate %d bytes of memory\n",
+			size);
+	printk(KERN_ERR "Current memory map:\n");
+	for (i = 0; i < BLOCKS; i++) {
+		printk(KERN_ERR "Pool %2d size %4d status: %d\n",
+				i, priv->memory_pool[i].size,
+				priv->memory_pool[i].free);
+	}
+	/* XXX maybe -ENOMEM could be possible */
+	BUG();
+	return 0;
+}
+
+static void free_mem(struct isp1760_hcd *priv, u32 mem)
+{
+	int i;
+
+	if (mem == ISP1760_NULL_POINTER)
+		return;
+
+	for (i = 0; i < BLOCKS; i++) {
+		if (priv->memory_pool[i].start == mem) {
+
+			BUG_ON(priv->memory_pool[i].free);
+
+			priv->memory_pool[i].free = 1;
+			return ;
+		}
+	}
+
+	printk(KERN_ERR "Trying to free not-here-allocated memory :%08x\n",
+			mem);
+	BUG();
+}
+
+static void isp1760_init_regs(struct usb_hcd *hcd)
+{
+	isp1760_writel(0, hcd->regs + HC_BUFFER_STATUS_REG);
+	isp1760_writel(NO_TRANSFER_ACTIVE, hcd->regs +
+			HC_ATL_PTD_SKIPMAP_REG);
+	isp1760_writel(NO_TRANSFER_ACTIVE, hcd->regs +
+			HC_INT_PTD_SKIPMAP_REG);
+	isp1760_writel(NO_TRANSFER_ACTIVE, hcd->regs +
+			HC_ISO_PTD_SKIPMAP_REG);
+
+	isp1760_writel(~NO_TRANSFER_ACTIVE, hcd->regs +
+			HC_ATL_PTD_DONEMAP_REG);
+	isp1760_writel(~NO_TRANSFER_ACTIVE, hcd->regs +
+			HC_INT_PTD_DONEMAP_REG);
+	isp1760_writel(~NO_TRANSFER_ACTIVE, hcd->regs +
+			HC_ISO_PTD_DONEMAP_REG);
+}
+
+static int handshake(struct isp1760_hcd *priv, void __iomem *ptr,
+		      u32 mask, u32 done, int usec)
+{
+	u32 result;
+
+	do {
+		result = isp1760_readl(ptr);
+		if (result == ~0)
+			return -ENODEV;
+		result &= mask;
+		if (result == done)
+			return 0;
+		udelay(1);
+		usec--;
+	} while (usec > 0);
+	return -ETIMEDOUT;
+}
+
+/* reset a non-running (STS_HALT == 1) controller */
+static int ehci_reset(struct isp1760_hcd *priv)
+{
+	int retval;
+	struct usb_hcd *hcd = priv_to_hcd(priv);
+	u32 command = isp1760_readl(hcd->regs + HC_USBCMD);
+
+	command |= CMD_RESET;
+	isp1760_writel(command, hcd->regs + HC_USBCMD);
+	hcd->state = HC_STATE_HALT;
+	priv->next_statechange = jiffies;
+	retval = handshake(priv, hcd->regs + HC_USBCMD,
+			    CMD_RESET, 0, 250 * 1000);
+	return retval;
+}
+
+static void qh_destroy(struct isp1760_qh *qh)
+{
+	BUG_ON(!list_empty(&qh->qtd_list));
+	kmem_cache_free(qh_cachep, qh);
+}
+
+static struct isp1760_qh *isp1760_qh_alloc(struct isp1760_hcd *priv,
+		gfp_t flags)
+{
+	struct isp1760_qh *qh;
+
+	qh = kmem_cache_zalloc(qh_cachep, flags);
+	if (!qh)
+		return qh;
+
+	INIT_LIST_HEAD(&qh->qtd_list);
+	qh->priv = priv;
+	return qh;
+}
+
+/* magic numbers that can affect system performance */
+#define	EHCI_TUNE_CERR		3	/* 0-3 qtd retries; 0 == don't stop */
+#define	EHCI_TUNE_RL_HS		4	/* nak throttle; see 4.9 */
+#define	EHCI_TUNE_RL_TT		0
+#define	EHCI_TUNE_MULT_HS	1	/* 1-3 transactions/uframe; 4.10.3 */
+#define	EHCI_TUNE_MULT_TT	1
+#define	EHCI_TUNE_FLS		2	/* (small) 256 frame schedule */
+
+/* one-time init, only for memory state */
+static int priv_init(struct usb_hcd *hcd)
+{
+	struct isp1760_hcd		*priv = hcd_to_priv(hcd);
+	u32			hcc_params;
+
+	spin_lock_init(&priv->lock);
+
+	/*
+	 * hw default: 1K periodic list heads, one per frame.
+	 * periodic_size can shrink by USBCMD update if hcc_params allows.
+	 */
+	priv->periodic_size = DEFAULT_I_TDPS;
+
+	/* controllers may cache some of the periodic schedule ... */
+	hcc_params = isp1760_readl(hcd->regs + HC_HCCPARAMS);
+	/* full frame cache */
+	if (HCC_ISOC_CACHE(hcc_params))
+		priv->i_thresh = 8;
+	else /* N microframes cached */
+		priv->i_thresh = 2 + HCC_ISOC_THRES(hcc_params);
+
+	return 0;
+}
+
+static int isp1760_hc_setup(struct usb_hcd *hcd)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(hcd);
+	int result;
+	u32 scratch;
+
+	isp1760_writel(0xdeadbabe, hcd->regs + HC_SCRATCH_REG);
+	scratch = isp1760_readl(hcd->regs + HC_SCRATCH_REG);
+	if (scratch != 0xdeadbabe) {
+		printk(KERN_ERR "ISP1760: Scratch test failed.\n");
+		return -ENODEV;
+	}
+
+	/* pre reset */
+	isp1760_init_regs(hcd);
+
+	/* reset */
+	isp1760_writel(SW_RESET_RESET_ALL, hcd->regs + HC_RESET_REG);
+	mdelay(100);
+
+	isp1760_writel(SW_RESET_RESET_HC, hcd->regs + HC_RESET_REG);
+	mdelay(100);
+
+	result = ehci_reset(priv);
+	if (result)
+		return result;
+
+	/* Step 11 passed */
+
+	isp1760_writel(INTERRUPT_ENABLE_MASK, hcd->regs + HC_INTERRUPT_REG);
+	isp1760_writel(INTERRUPT_ENABLE_MASK, hcd->regs + HC_INTERRUPT_ENABLE);
+
+	/* ATL reset */
+	scratch = isp1760_readl(hcd->regs + HC_HW_MODE_CTRL);
+	isp1760_writel(scratch | ALL_ATX_RESET, hcd->regs + HC_HW_MODE_CTRL);
+	mdelay(10);
+	isp1760_writel(scratch, hcd->regs + HC_HW_MODE_CTRL);
+
+	isp1760_writel(PORT1_POWER | PORT1_INIT2, hcd->regs + HC_PORT1_CTRL);
+	mdelay(10);
+
+	priv->hcs_params = isp1760_readl(hcd->regs + HC_HCSPARAMS);
+
+	return priv_init(hcd);
+}
+
+static void isp1760_init_maps(struct usb_hcd *hcd)
+{
+	/*set last maps, for iso its only 1, else 32 tds bitmap*/
+	isp1760_writel(0x80000000, hcd->regs + HC_ATL_PTD_LASTPTD_REG);
+	isp1760_writel(0x80000000, hcd->regs + HC_INT_PTD_LASTPTD_REG);
+	isp1760_writel(0x00000001, hcd->regs + HC_ISO_PTD_LASTPTD_REG);
+}
+
+static void isp1760_enable_interrupts(struct usb_hcd *hcd)
+{
+	isp1760_writel(0, hcd->regs + HC_ATL_IRQ_MASK_AND_REG);
+	isp1760_writel(0, hcd->regs + HC_ATL_IRQ_MASK_OR_REG);
+	isp1760_writel(0, hcd->regs + HC_INT_IRQ_MASK_AND_REG);
+	isp1760_writel(0, hcd->regs + HC_INT_IRQ_MASK_OR_REG);
+	isp1760_writel(0, hcd->regs + HC_ISO_IRQ_MASK_AND_REG);
+	isp1760_writel(0xffffffff, hcd->regs + HC_ISO_IRQ_MASK_OR_REG);
+	/* step 23 passed */
+}
+
+static int isp1760_run(struct usb_hcd *hcd)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(hcd);
+	int retval;
+	u32 temp;
+	u32 command;
+	u32 chipid;
+
+	hcd->uses_new_polling = 1;
+	hcd->poll_rh = 0;
+
+	hcd->state = HC_STATE_RUNNING;
+	isp1760_enable_interrupts(hcd);
+	temp = isp1760_readl(hcd->regs + HC_HW_MODE_CTRL);
+	temp |= FINAL_HW_CONFIG;
+	isp1760_writel(temp, hcd->regs + HC_HW_MODE_CTRL);
+
+	command = isp1760_readl(hcd->regs + HC_USBCMD);
+	command &= ~(CMD_LRESET|CMD_RESET);
+	command |= CMD_RUN;
+	isp1760_writel(command, hcd->regs + HC_USBCMD);
+
+	retval = handshake(priv, hcd->regs + HC_USBCMD,	CMD_RUN, CMD_RUN,
+			250 * 1000);
+	if (retval)
+		return retval;
+
+	/*
+	 * XXX
+	 * Spec says to write FLAG_CF as last config action, priv code grabs
+	 * the semaphore while doing so.
+	 */
+	down_write(&ehci_cf_port_reset_rwsem);
+	isp1760_writel(FLAG_CF, hcd->regs + HC_CONFIGFLAG);
+
+	retval = handshake(priv, hcd->regs + HC_CONFIGFLAG, FLAG_CF, FLAG_CF,
+			250 * 1000);
+	up_write(&ehci_cf_port_reset_rwsem);
+	if (retval)
+		return retval;
+
+	chipid = isp1760_readl(hcd->regs + HC_CHIP_ID_REG);
+	isp1760_info(priv, "USB ISP %04x HW rev. %d started\n",	chipid & 0xffff,
+			chipid >> 16);
+
+	/* PTD Register Init Part 2, Step 28 */
+	/* enable INTs */
+	isp1760_init_maps(hcd);
+
+	/* GRR this is run-once init(), being done every time the HC starts.
+	 * So long as they're part of class devices, we can't do it init()
+	 * since the class device isn't created that early.
+	 */
+	return 0;
+}
+
+static u32 base_to_chip(u32 base)
+{
+	return ((base - 0x400) >> 3);
+}
+
+static void transform_into_atl(struct isp1760_hcd *priv, struct isp1760_qh *qh,
+			struct isp1760_qtd *qtd, struct urb *urb,
+			u32 payload, struct ptd *ptd)
+{
+	u32 dw0;
+	u32 dw1;
+	u32 dw2;
+	u32 dw3;
+	u32 maxpacket;
+	u32 multi;
+	u32 pid_code;
+	u32 rl = RL_COUNTER;
+	u32 nak = NAK_COUNTER;
+
+	/* according to 3.6.2, max packet len can not be > 0x400 */
+	maxpacket = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
+	multi =  1 + ((maxpacket >> 11) & 0x3);
+	maxpacket &= 0x7ff;
+
+	/* DW0 */
+	dw0 = PTD_VALID;
+	dw0 |= PTD_LENGTH(qtd->length);
+	dw0 |= PTD_MAXPACKET(maxpacket);
+	dw0 |= PTD_ENDPOINT(usb_pipeendpoint(urb->pipe));
+	dw1 = usb_pipeendpoint(urb->pipe) >> 1;
+
+	/* DW1 */
+	dw1 |= PTD_DEVICE_ADDR(usb_pipedevice(urb->pipe));
+
+	pid_code = qtd->packet_type;
+	dw1 |= PTD_PID_TOKEN(pid_code);
+
+	if (usb_pipebulk(urb->pipe))
+		dw1 |= PTD_TRANS_BULK;
+	else if  (usb_pipeint(urb->pipe))
+		dw1 |= PTD_TRANS_INT;
+
+	if (urb->dev->speed != USB_SPEED_HIGH) {
+		/* split transaction */
+
+		dw1 |= PTD_TRANS_SPLIT;
+		if (urb->dev->speed == USB_SPEED_LOW)
+			dw1 |= PTD_SE_USB_LOSPEED;
+
+		dw1 |= PTD_PORT_NUM(urb->dev->ttport);
+		dw1 |= PTD_HUB_NUM(urb->dev->tt->hub->devnum);
+
+		/* SE bit for Split INT transfers */
+		if (usb_pipeint(urb->pipe) &&
+				(urb->dev->speed == USB_SPEED_LOW))
+			dw1 |= 2 << 16;
+
+		dw3 = 0;
+		rl = 0;
+		nak = 0;
+	} else {
+		dw0 |= PTD_MULTI(multi);
+		if (usb_pipecontrol(urb->pipe) || usb_pipebulk(urb->pipe))
+			dw3 = qh->ping;
+		else
+			dw3 = 0;
+	}
+	/* DW2 */
+	dw2 = 0;
+	dw2 |= PTD_DATA_START_ADDR(base_to_chip(payload));
+	dw2 |= PTD_RL_CNT(rl);
+	dw3 |= PTD_NAC_CNT(nak);
+
+	/* DW3 */
+	if (usb_pipecontrol(urb->pipe))
+		dw3 |= PTD_DATA_TOGGLE(qtd->toggle);
+	else
+		dw3 |= qh->toggle;
+
+
+	dw3 |= PTD_ACTIVE;
+	/* Cerr */
+	dw3 |= PTD_CERR(ERR_COUNTER);
+
+	memset(ptd, 0, sizeof(*ptd));
+
+	ptd->dw0 = cpu_to_le32(dw0);
+	ptd->dw1 = cpu_to_le32(dw1);
+	ptd->dw2 = cpu_to_le32(dw2);
+	ptd->dw3 = cpu_to_le32(dw3);
+}
+
+static void transform_add_int(struct isp1760_hcd *priv, struct isp1760_qh *qh,
+			struct isp1760_qtd *qtd, struct urb *urb,
+			u32 payload, struct ptd *ptd)
+{
+	u32 maxpacket;
+	u32 multi;
+	u32 numberofusofs;
+	u32 i;
+	u32 usofmask, usof;
+	u32 period;
+
+	maxpacket = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
+	multi =  1 + ((maxpacket >> 11) & 0x3);
+	maxpacket &= 0x7ff;
+	/* length of the data per uframe */
+	maxpacket = multi * maxpacket;
+
+	numberofusofs = urb->transfer_buffer_length / maxpacket;
+	if (urb->transfer_buffer_length % maxpacket)
+		numberofusofs += 1;
+
+	usofmask = 1;
+	usof = 0;
+	for (i = 0; i < numberofusofs; i++) {
+		usof |= usofmask;
+		usofmask <<= 1;
+	}
+
+	if (urb->dev->speed != USB_SPEED_HIGH) {
+		/* split */
+		ptd->dw5 = __constant_cpu_to_le32(0x1c);
+
+		if (qh->period >= 32)
+			period = qh->period / 2;
+		else
+			period = qh->period;
+
+	} else {
+
+		if (qh->period >= 8)
+			period = qh->period/8;
+		else
+			period = qh->period;
+
+		if (period >= 32)
+			period  = 16;
+
+		if (qh->period >= 8) {
+			/* millisecond period */
+			period = (period << 3);
+		} else {
+			/* usof based tranmsfers */
+			/* minimum 4 usofs */
+			usof = 0x11;
+		}
+	}
+
+	ptd->dw2 |= cpu_to_le32(period);
+	ptd->dw4 = cpu_to_le32(usof);
+}
+
+static void transform_into_int(struct isp1760_hcd *priv, struct isp1760_qh *qh,
+			struct isp1760_qtd *qtd, struct urb *urb,
+			u32 payload, struct ptd *ptd)
+{
+	transform_into_atl(priv, qh, qtd, urb, payload, ptd);
+	transform_add_int(priv, qh, qtd, urb,  payload, ptd);
+}
+
+static int qtd_fill(struct isp1760_qtd *qtd, void *databuffer, size_t len,
+		u32 token)
+{
+	int count;
+
+	qtd->data_buffer = databuffer;
+	qtd->packet_type = GET_QTD_TOKEN_TYPE(token);
+	qtd->toggle = GET_DATA_TOGGLE(token);
+
+	if (len > HC_ATL_PL_SIZE)
+		count = HC_ATL_PL_SIZE;
+	else
+		count = len;
+
+	qtd->length = count;
+	return count;
+}
+
+static int check_error(struct ptd *ptd)
+{
+	int error = 0;
+	u32 dw3;
+
+	dw3 = le32_to_cpu(ptd->dw3);
+	if (dw3 & DW3_HALT_BIT)
+		error = -EPIPE;
+
+	if (dw3 & DW3_ERROR_BIT) {
+		printk(KERN_ERR "error bit is set in DW3\n");
+		error = -EPIPE;
+	}
+
+	if (dw3 & DW3_QTD_ACTIVE) {
+		printk(KERN_ERR "transfer active bit is set DW3\n");
+		printk(KERN_ERR "nak counter: %d, rl: %d\n", (dw3 >> 19) & 0xf,
+				(le32_to_cpu(ptd->dw2) >> 25) & 0xf);
+	}
+
+	return error;
+}
+
+static void check_int_err_status(u32 dw4)
+{
+	u32 i;
+
+	dw4 >>= 8;
+
+	for (i = 0; i < 8; i++) {
+		switch (dw4 & 0x7) {
+		case INT_UNDERRUN:
+			printk(KERN_ERR "ERROR: under run , %d\n", i);
+			break;
+
+		case INT_EXACT:
+			printk(KERN_ERR "ERROR: transaction error, %d\n", i);
+			break;
+
+		case INT_BABBLE:
+			printk(KERN_ERR "ERROR: babble error, %d\n", i);
+			break;
+		}
+		dw4 >>= 3;
+	}
+}
+
+static void enqueue_one_qtd(struct isp1760_qtd *qtd, struct isp1760_hcd *priv,
+		u32 payload)
+{
+	u32 token;
+	struct usb_hcd *hcd = priv_to_hcd(priv);
+
+	token = qtd->packet_type;
+
+	if (qtd->length && (qtd->length <= HC_ATL_PL_SIZE)) {
+		switch (token) {
+		case IN_PID:
+			break;
+		case OUT_PID:
+		case SETUP_PID:
+			priv_write_copy(priv, qtd->data_buffer,
+					hcd->regs + payload,
+					qtd->length);
+		}
+	}
+}
+
+static void enqueue_one_atl_qtd(u32 atl_regs, u32 payload,
+		struct isp1760_hcd *priv, struct isp1760_qh *qh,
+		struct urb *urb, u32 slot, struct isp1760_qtd *qtd)
+{
+	struct ptd ptd;
+	struct usb_hcd *hcd = priv_to_hcd(priv);
+
+	transform_into_atl(priv, qh, qtd, urb, payload, &ptd);
+	priv_write_copy(priv, (u32 *)&ptd, hcd->regs + atl_regs, sizeof(ptd));
+	enqueue_one_qtd(qtd, priv, payload);
+
+	priv->atl_ints[slot].urb = urb;
+	priv->atl_ints[slot].qh = qh;
+	priv->atl_ints[slot].qtd = qtd;
+	priv->atl_ints[slot].data_buffer = qtd->data_buffer;
+	priv->atl_ints[slot].payload = payload;
+	qtd->status |= URB_ENQUEUED | URB_TYPE_ATL;
+	qtd->status |= slot << 16;
+}
+
+static void enqueue_one_int_qtd(u32 int_regs, u32 payload,
+		struct isp1760_hcd *priv, struct isp1760_qh *qh,
+		struct urb *urb, u32 slot,  struct isp1760_qtd *qtd)
+{
+	struct ptd ptd;
+	struct usb_hcd *hcd = priv_to_hcd(priv);
+
+	transform_into_int(priv, qh, qtd, urb, payload, &ptd);
+	priv_write_copy(priv, (u32 *)&ptd, hcd->regs + int_regs, sizeof(ptd));
+	enqueue_one_qtd(qtd, priv, payload);
+
+	priv->int_ints[slot].urb = urb;
+	priv->int_ints[slot].qh = qh;
+	priv->int_ints[slot].qtd = qtd;
+	priv->int_ints[slot].data_buffer = qtd->data_buffer;
+	priv->int_ints[slot].payload = payload;
+	qtd->status |= URB_ENQUEUED | URB_TYPE_INT;
+	qtd->status |= slot << 16;
+}
+
+void enqueue_an_ATL_packet(struct usb_hcd *hcd, struct isp1760_qh *qh,
+		struct isp1760_qtd *qtd)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(hcd);
+	u32 skip_map, or_map;
+	u32 queue_entry;
+	u32 slot;
+	u32 atl_regs, payload;
+	u32 buffstatus;
+
+	skip_map = isp1760_readl(hcd->regs + HC_ATL_PTD_SKIPMAP_REG);
+
+	BUG_ON(!skip_map);
+	slot = __ffs(skip_map);
+	queue_entry = 1 << slot;
+
+	atl_regs = ATL_REGS_OFFSET + slot * sizeof(struct ptd);
+
+	payload = alloc_mem(priv, qtd->length);
+
+	enqueue_one_atl_qtd(atl_regs, payload, priv, qh, qtd->urb, slot, qtd);
+
+	or_map = isp1760_readl(hcd->regs + HC_ATL_IRQ_MASK_OR_REG);
+	or_map |= queue_entry;
+	isp1760_writel(or_map, hcd->regs + HC_ATL_IRQ_MASK_OR_REG);
+
+	skip_map &= ~queue_entry;
+	isp1760_writel(skip_map, hcd->regs + HC_ATL_PTD_SKIPMAP_REG);
+
+	buffstatus = isp1760_readl(hcd->regs + HC_BUFFER_STATUS_REG);
+	buffstatus |= ATL_BUFFER;
+	isp1760_writel(buffstatus, hcd->regs + HC_BUFFER_STATUS_REG);
+}
+
+void enqueue_an_INT_packet(struct usb_hcd *hcd, struct isp1760_qh *qh,
+		struct isp1760_qtd *qtd)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(hcd);
+	u32 skip_map, or_map;
+	u32 queue_entry;
+	u32 slot;
+	u32 int_regs, payload;
+	u32 buffstatus;
+
+	skip_map = isp1760_readl(hcd->regs + HC_INT_PTD_SKIPMAP_REG);
+
+	BUG_ON(!skip_map);
+	slot = __ffs(skip_map);
+	queue_entry = 1 << slot;
+
+	int_regs = INT_REGS_OFFSET + slot * sizeof(struct ptd);
+
+	payload = alloc_mem(priv, qtd->length);
+
+	enqueue_one_int_qtd(int_regs, payload, priv, qh, qtd->urb, slot, qtd);
+
+	or_map = isp1760_readl(hcd->regs + HC_INT_IRQ_MASK_OR_REG);
+	or_map |= queue_entry;
+	isp1760_writel(or_map, hcd->regs + HC_INT_IRQ_MASK_OR_REG);
+
+	skip_map &= ~queue_entry;
+	isp1760_writel(skip_map, hcd->regs + HC_INT_PTD_SKIPMAP_REG);
+
+	buffstatus = isp1760_readl(hcd->regs + HC_BUFFER_STATUS_REG);
+	buffstatus |= INT_BUFFER;
+	isp1760_writel(buffstatus, hcd->regs + HC_BUFFER_STATUS_REG);
+}
+
+static void isp1760_urb_done(struct isp1760_hcd *priv, struct urb *urb, int status)
+__releases(priv->lock)
+__acquires(priv->lock)
+{
+	if (!urb->unlinked) {
+		if (status == -EINPROGRESS)
+			status = 0;
+	}
+
+	/* complete() can reenter this HCD */
+	usb_hcd_unlink_urb_from_ep(priv_to_hcd(priv), urb);
+	spin_unlock(&priv->lock);
+	usb_hcd_giveback_urb(priv_to_hcd(priv), urb, status);
+	spin_lock(&priv->lock);
+}
+
+static void isp1760_qtd_free(struct isp1760_qtd *qtd)
+{
+	kmem_cache_free(qtd_cachep, qtd);
+}
+
+static struct isp1760_qtd *clean_this_qtd(struct isp1760_qtd *qtd)
+{
+	struct isp1760_qtd *tmp_qtd;
+
+	tmp_qtd = qtd->hw_next;
+	list_del(&qtd->qtd_list);
+	isp1760_qtd_free(qtd);
+	return tmp_qtd;
+}
+
+/*
+ * Remove this QTD from the QH list and free its memory. If this QTD
+ * isn't the last one than remove also his successor(s).
+ * Returns the QTD which is part of an new URB and should be enqueued.
+ */
+static struct isp1760_qtd *clean_up_qtdlist(struct isp1760_qtd *qtd)
+{
+	struct isp1760_qtd *tmp_qtd;
+	int last_one;
+
+	do {
+		tmp_qtd = qtd->hw_next;
+		last_one = qtd->status & URB_COMPLETE_NOTIFY;
+		list_del(&qtd->qtd_list);
+		isp1760_qtd_free(qtd);
+		qtd = tmp_qtd;
+	} while (!last_one && qtd);
+
+	return qtd;
+}
+
+static void do_atl_int(struct usb_hcd *usb_hcd)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(usb_hcd);
+	u32 done_map, skip_map;
+	struct ptd ptd;
+	struct urb *urb = NULL;
+	u32 atl_regs_base;
+	u32 atl_regs;
+	u32 queue_entry;
+	u32 payload;
+	u32 length;
+	u32 or_map;
+	u32 status = -EINVAL;
+	int error;
+	struct isp1760_qtd *qtd;
+	struct isp1760_qh *qh;
+	u32 rl;
+	u32 nakcount;
+
+	done_map = isp1760_readl(usb_hcd->regs +
+			HC_ATL_PTD_DONEMAP_REG);
+	skip_map = isp1760_readl(usb_hcd->regs +
+			HC_ATL_PTD_SKIPMAP_REG);
+
+	or_map = isp1760_readl(usb_hcd->regs + HC_ATL_IRQ_MASK_OR_REG);
+	or_map &= ~done_map;
+	isp1760_writel(or_map, usb_hcd->regs + HC_ATL_IRQ_MASK_OR_REG);
+
+	atl_regs_base = ATL_REGS_OFFSET;
+	while (done_map) {
+		u32 dw1;
+		u32 dw2;
+		u32 dw3;
+
+		status = 0;
+
+		queue_entry = __ffs(done_map);
+		done_map &= ~(1 << queue_entry);
+		skip_map |= 1 << queue_entry;
+
+		atl_regs = atl_regs_base + queue_entry * sizeof(struct ptd);
+
+		urb = priv->atl_ints[queue_entry].urb;
+		qtd = priv->atl_ints[queue_entry].qtd;
+		qh = priv->atl_ints[queue_entry].qh;
+		payload = priv->atl_ints[queue_entry].payload;
+
+		if (!qh) {
+			printk(KERN_ERR "qh is 0\n");
+			continue;
+		}
+		priv_read_copy(priv, (u32 *)&ptd, usb_hcd->regs + atl_regs,
+				atl_regs, sizeof(ptd));
+
+		dw1 = le32_to_cpu(ptd.dw1);
+		dw2 = le32_to_cpu(ptd.dw2);
+		dw3 = le32_to_cpu(ptd.dw3);
+		rl = (dw2 >> 25) & 0x0f;
+		nakcount = (dw3 >> 19) & 0xf;
+
+		/* Transfer Error, *but* active and no HALT -> reload */
+		if ((dw3 & DW3_ERROR_BIT) && (dw3 & DW3_QTD_ACTIVE) &&
+				!(dw3 & DW3_HALT_BIT)) {
+
+			/* according to ppriv code, we have to
+			 * reload this one if trasfered bytes != requested bytes
+			 * else act like everything went smooth..
+			 * XXX This just doesn't feel right and hasn't
+			 * triggered so far.
+			 */
+
+			length = PTD_XFERRED_LENGTH(dw3);
+			printk(KERN_ERR "Should reload now.... transfered %d "
+					"of %zu\n", length, qtd->length);
+			BUG();
+		}
+
+		if (!nakcount && (dw3 & DW3_QTD_ACTIVE)) {
+			u32 buffstatus;
+
+			/* XXX
+			 * NAKs are handled in HW by the chip. Usually if the
+			 * device is not able to send data fast enough.
+			 * This did not trigger for a long time now.
+			 */
+			printk(KERN_ERR "Reloading ptd %p/%p... qh %p readed: "
+					"%d of %d done: %08x cur: %08x\n", qtd,
+					urb, qh, PTD_XFERRED_LENGTH(dw3),
+					qtd->length, done_map,
+					(1 << queue_entry));
+
+			/* RL counter = ERR counter */
+			dw3 &= ~(0xf << 19);
+			dw3 |= rl << 19;
+			dw3 &= ~(3 << (55 - 32));
+			dw3 |= ERR_COUNTER << (55 - 32);
+
+			/*
+			 * It is not needed to write skip map back because it
+			 * is unchanged. Just make sure that this entry is
+			 * unskipped once it gets written to the HW.
+			 */
+			skip_map &= ~(1 << queue_entry);
+			or_map = isp1760_readl(usb_hcd->regs +
+					HC_ATL_IRQ_MASK_OR_REG);
+			or_map |= 1 << queue_entry;
+			isp1760_writel(or_map, usb_hcd->regs +
+					HC_ATL_IRQ_MASK_OR_REG);
+
+			ptd.dw3 = cpu_to_le32(dw3);
+			priv_write_copy(priv, (u32 *)&ptd, usb_hcd->regs +
+					atl_regs, sizeof(ptd));
+
+			ptd.dw0 |= __constant_cpu_to_le32(PTD_VALID);
+			priv_write_copy(priv, (u32 *)&ptd, usb_hcd->regs +
+					atl_regs, sizeof(ptd));
+
+			buffstatus = isp1760_readl(usb_hcd->regs +
+					HC_BUFFER_STATUS_REG);
+			buffstatus |= ATL_BUFFER;
+			isp1760_writel(buffstatus, usb_hcd->regs +
+					HC_BUFFER_STATUS_REG);
+			continue;
+		}
+
+		error = check_error(&ptd);
+		if (error) {
+			status = error;
+			priv->atl_ints[queue_entry].qh->toggle = 0;
+			priv->atl_ints[queue_entry].qh->ping = 0;
+			urb->status = -EPIPE;
+
+#if 0
+			printk(KERN_ERR "Error in %s().\n", __func__);
+			printk(KERN_ERR "IN dw0: %08x dw1: %08x dw2: %08x "
+					"dw3: %08x dw4: %08x dw5: %08x dw6: "
+					"%08x dw7: %08x\n",
+					ptd.dw0, ptd.dw1, ptd.dw2, ptd.dw3,
+					ptd.dw4, ptd.dw5, ptd.dw6, ptd.dw7);
+#endif
+		} else {
+			if (usb_pipetype(urb->pipe) == PIPE_BULK) {
+				priv->atl_ints[queue_entry].qh->toggle = dw3 &
+					(1 << 25);
+				priv->atl_ints[queue_entry].qh->ping = dw3 &
+					(1 << 26);
+			}
+		}
+
+		length = PTD_XFERRED_LENGTH(dw3);
+		if (length) {
+			switch (DW1_GET_PID(dw1)) {
+			case IN_PID:
+				priv_read_copy(priv,
+					priv->atl_ints[queue_entry].data_buffer,
+					usb_hcd->regs + payload, payload,
+					length);
+
+			case OUT_PID:
+
+				urb->actual_length += length;
+
+			case SETUP_PID:
+				break;
+			}
+		}
+
+		priv->atl_ints[queue_entry].data_buffer = NULL;
+		priv->atl_ints[queue_entry].urb = NULL;
+		priv->atl_ints[queue_entry].qtd = NULL;
+		priv->atl_ints[queue_entry].qh = NULL;
+
+		free_mem(priv, payload);
+
+		isp1760_writel(skip_map, usb_hcd->regs +
+				HC_ATL_PTD_SKIPMAP_REG);
+
+		if (urb->status == -EPIPE) {
+			/* HALT was received */
+
+			qtd = clean_up_qtdlist(qtd);
+			isp1760_urb_done(priv, urb, urb->status);
+
+		} else if (usb_pipebulk(urb->pipe) && (length < qtd->length)) {
+			/* short BULK received */
+
+			printk(KERN_ERR "short bulk, %d instead %d\n", length,
+					qtd->length);
+			if (urb->transfer_flags & URB_SHORT_NOT_OK) {
+				urb->status = -EREMOTEIO;
+				printk(KERN_ERR "not okey\n");
+			}
+
+			if (urb->status == -EINPROGRESS)
+				urb->status = 0;
+
+			qtd = clean_up_qtdlist(qtd);
+
+			isp1760_urb_done(priv, urb, urb->status);
+
+		} else if (qtd->status & URB_COMPLETE_NOTIFY) {
+			/* that was the last qtd of that URB */
+
+			if (urb->status == -EINPROGRESS)
+				urb->status = 0;
+
+			qtd = clean_this_qtd(qtd);
+			isp1760_urb_done(priv, urb, urb->status);
+
+		} else {
+			/* next QTD of this URB */
+
+			qtd = clean_this_qtd(qtd);
+			BUG_ON(!qtd);
+		}
+
+		if (qtd)
+			enqueue_an_ATL_packet(usb_hcd, qh, qtd);
+
+		skip_map = isp1760_readl(usb_hcd->regs +
+				HC_ATL_PTD_SKIPMAP_REG);
+	}
+}
+
+static void do_intl_int(struct usb_hcd *usb_hcd)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(usb_hcd);
+	u32 done_map, skip_map;
+	struct ptd ptd;
+	struct urb *urb = NULL;
+	u32 int_regs;
+	u32 int_regs_base;
+	u32 payload;
+	u32 length;
+	u32 or_map;
+	int error;
+	u32 queue_entry;
+	struct isp1760_qtd *qtd;
+	struct isp1760_qh *qh;
+
+	done_map = isp1760_readl(usb_hcd->regs +
+			HC_INT_PTD_DONEMAP_REG);
+	skip_map = isp1760_readl(usb_hcd->regs +
+			HC_INT_PTD_SKIPMAP_REG);
+
+	or_map = isp1760_readl(usb_hcd->regs + HC_INT_IRQ_MASK_OR_REG);
+	or_map &= ~done_map;
+	isp1760_writel(or_map, usb_hcd->regs + HC_INT_IRQ_MASK_OR_REG);
+
+	int_regs_base = INT_REGS_OFFSET;
+
+	while (done_map) {
+		u32 dw1;
+		u32 dw3;
+
+		queue_entry = __ffs(done_map);
+		done_map &= ~(1 << queue_entry);
+		skip_map |= 1 << queue_entry;
+
+		int_regs = int_regs_base + queue_entry * sizeof(struct ptd);
+		urb = priv->int_ints[queue_entry].urb;
+		qtd = priv->int_ints[queue_entry].qtd;
+		qh = priv->int_ints[queue_entry].qh;
+		payload = priv->int_ints[queue_entry].payload;
+
+		if (!qh) {
+			printk(KERN_ERR "(INT) qh is 0\n");
+			continue;
+		}
+
+		priv_read_copy(priv, (u32 *)&ptd, usb_hcd->regs + int_regs,
+				int_regs, sizeof(ptd));
+		dw1 = le32_to_cpu(ptd.dw1);
+		dw3 = le32_to_cpu(ptd.dw3);
+		check_int_err_status(le32_to_cpu(ptd.dw4));
+
+		error = check_error(&ptd);
+		if (error) {
+#if 0
+			printk(KERN_ERR "Error in %s().\n", __func__);
+			printk(KERN_ERR "IN dw0: %08x dw1: %08x dw2: %08x "
+					"dw3: %08x dw4: %08x dw5: %08x dw6: "
+					"%08x dw7: %08x\n",
+					ptd.dw0, ptd.dw1, ptd.dw2, ptd.dw3,
+					ptd.dw4, ptd.dw5, ptd.dw6, ptd.dw7);
+#endif
+			urb->status = -EPIPE;
+			priv->int_ints[queue_entry].qh->toggle = 0;
+			priv->int_ints[queue_entry].qh->ping = 0;
+
+		} else {
+			priv->int_ints[queue_entry].qh->toggle =
+				dw3 & (1 << 25);
+			priv->int_ints[queue_entry].qh->ping = dw3 & (1 << 26);
+		}
+
+		if (urb->dev->speed != USB_SPEED_HIGH)
+			length = PTD_XFERRED_LENGTH_LO(dw3);
+		else
+			length = PTD_XFERRED_LENGTH(dw3);
+
+		if (length) {
+			switch (DW1_GET_PID(dw1)) {
+			case IN_PID:
+				priv_read_copy(priv,
+					priv->int_ints[queue_entry].data_buffer,
+					usb_hcd->regs + payload , payload,
+					length);
+			case OUT_PID:
+
+				urb->actual_length += length;
+
+			case SETUP_PID:
+				break;
+			}
+		}
+
+		priv->int_ints[queue_entry].data_buffer = NULL;
+		priv->int_ints[queue_entry].urb = NULL;
+		priv->int_ints[queue_entry].qtd = NULL;
+		priv->int_ints[queue_entry].qh = NULL;
+
+		isp1760_writel(skip_map, usb_hcd->regs +
+				HC_INT_PTD_SKIPMAP_REG);
+		free_mem(priv, payload);
+
+		if (urb->status == -EPIPE) {
+			/* HALT received */
+
+			 qtd = clean_up_qtdlist(qtd);
+			 isp1760_urb_done(priv, urb, urb->status);
+
+		} else if (qtd->status & URB_COMPLETE_NOTIFY) {
+
+			if (urb->status == -EINPROGRESS)
+				urb->status = 0;
+
+			qtd = clean_this_qtd(qtd);
+			isp1760_urb_done(priv, urb, urb->status);
+
+		} else {
+			/* next QTD of this URB */
+
+			qtd = clean_this_qtd(qtd);
+			BUG_ON(!qtd);
+		}
+
+		if (qtd)
+			enqueue_an_INT_packet(usb_hcd, qh, qtd);
+
+		skip_map = isp1760_readl(usb_hcd->regs +
+				HC_INT_PTD_SKIPMAP_REG);
+	}
+}
+
+#define max_packet(wMaxPacketSize) ((wMaxPacketSize) & 0x07ff)
+static struct isp1760_qh *qh_make(struct isp1760_hcd *priv, struct urb *urb,
+		gfp_t flags)
+{
+	struct isp1760_qh *qh;
+	int is_input, type;
+
+	qh = isp1760_qh_alloc(priv, flags);
+	if (!qh)
+		return qh;
+
+	/*
+	 * init endpoint/device data for this QH
+	 */
+	is_input = usb_pipein(urb->pipe);
+	type = usb_pipetype(urb->pipe);
+
+	if (type == PIPE_INTERRUPT) {
+
+		if (urb->dev->speed == USB_SPEED_HIGH) {
+
+			qh->period = urb->interval >> 3;
+			if (qh->period == 0 && urb->interval != 1) {
+				/* NOTE interval 2 or 4 uframes could work.
+				 * But interval 1 scheduling is simpler, and
+				 * includes high bandwidth.
+				 */
+				printk(KERN_ERR "intr period %d uframes, NYET!",
+						urb->interval);
+				qh_destroy(qh);
+				return NULL;
+			}
+		} else {
+			qh->period = urb->interval;
+		}
+	}
+
+	/* support for tt scheduling, and access to toggles */
+	qh->dev = urb->dev;
+
+	if (!usb_pipecontrol(urb->pipe))
+		usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), !is_input,
+				1);
+	return qh;
+}
+
+/*
+ * For control/bulk/interrupt, return QH with these TDs appended.
+ * Allocates and initializes the QH if necessary.
+ * Returns null if it can't allocate a QH it needs to.
+ * If the QH has TDs (urbs) already, that's great.
+ */
+static struct isp1760_qh *qh_append_tds(struct isp1760_hcd *priv,
+		struct urb *urb, struct list_head *qtd_list, int epnum,
+		void **ptr)
+{
+	struct isp1760_qh *qh;
+	struct isp1760_qtd *qtd;
+	struct isp1760_qtd *prev_qtd;
+
+	qh = (struct isp1760_qh *)*ptr;
+	if (!qh) {
+		/* can't sleep here, we have priv->lock... */
+		qh = qh_make(priv, urb, GFP_ATOMIC);
+		if (!qh)
+			return qh;
+		*ptr = qh;
+	}
+
+	qtd = list_entry(qtd_list->next, struct isp1760_qtd,
+			qtd_list);
+	if (!list_empty(&qh->qtd_list))
+		prev_qtd = list_entry(qh->qtd_list.prev,
+				struct isp1760_qtd, qtd_list);
+	else
+		prev_qtd = NULL;
+
+	list_splice(qtd_list, qh->qtd_list.prev);
+	if (prev_qtd) {
+		BUG_ON(prev_qtd->hw_next);
+		prev_qtd->hw_next = qtd;
+	}
+
+	urb->hcpriv = qh;
+	return qh;
+}
+
+static void qtd_list_free(struct isp1760_hcd *priv, struct urb *urb,
+		struct list_head *qtd_list)
+{
+	struct list_head *entry, *temp;
+
+	list_for_each_safe(entry, temp, qtd_list) {
+		struct isp1760_qtd	*qtd;
+
+		qtd = list_entry(entry, struct isp1760_qtd, qtd_list);
+		list_del(&qtd->qtd_list);
+		isp1760_qtd_free(qtd);
+	}
+}
+
+static int isp1760_prepare_enqueue(struct isp1760_hcd *priv, struct urb *urb,
+		struct list_head *qtd_list, gfp_t mem_flags, packet_enqueue *p)
+{
+	struct isp1760_qtd         *qtd;
+	int                     epnum;
+	unsigned long           flags;
+	struct isp1760_qh          *qh = NULL;
+	int                     rc;
+	int qh_busy;
+
+	qtd = list_entry(qtd_list->next, struct isp1760_qtd, qtd_list);
+	epnum = urb->ep->desc.bEndpointAddress;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &priv_to_hcd(priv)->flags)) {
+		rc = -ESHUTDOWN;
+		goto done;
+	}
+	rc = usb_hcd_link_urb_to_ep(priv_to_hcd(priv), urb);
+	if (rc)
+		goto done;
+
+	qh = urb->ep->hcpriv;
+	if (qh)
+		qh_busy = !list_empty(&qh->qtd_list);
+	else
+		qh_busy = 0;
+
+	qh = qh_append_tds(priv, urb, qtd_list, epnum, &urb->ep->hcpriv);
+	if (!qh) {
+		usb_hcd_unlink_urb_from_ep(priv_to_hcd(priv), urb);
+		rc = -ENOMEM;
+		goto done;
+	}
+
+	if (!qh_busy)
+		p(priv_to_hcd(priv), qh, qtd);
+
+done:
+	spin_unlock_irqrestore(&priv->lock, flags);
+	if (!qh)
+		qtd_list_free(priv, urb, qtd_list);
+	return rc;
+}
+
+static struct isp1760_qtd *isp1760_qtd_alloc(struct isp1760_hcd *priv,
+		gfp_t flags)
+{
+	struct isp1760_qtd *qtd;
+
+	qtd = kmem_cache_zalloc(qtd_cachep, flags);
+	if (qtd)
+		INIT_LIST_HEAD(&qtd->qtd_list);
+
+	return qtd;
+}
+
+/*
+ * create a list of filled qtds for this URB; won't link into qh.
+ */
+static struct list_head *qh_urb_transaction(struct isp1760_hcd *priv,
+		struct urb *urb, struct list_head *head, gfp_t flags)
+{
+	struct isp1760_qtd *qtd, *qtd_prev;
+	void *buf;
+	int len, maxpacket;
+	int is_input;
+	u32 token;
+
+	/*
+	 * URBs map to sequences of QTDs:  one logical transaction
+	 */
+	qtd = isp1760_qtd_alloc(priv, flags);
+	if (!qtd)
+		return NULL;
+
+	list_add_tail(&qtd->qtd_list, head);
+	qtd->urb = urb;
+	urb->status = -EINPROGRESS;
+
+	token = 0;
+	/* for split transactions, SplitXState initialized to zero */
+
+	len = urb->transfer_buffer_length;
+	is_input = usb_pipein(urb->pipe);
+	if (usb_pipecontrol(urb->pipe)) {
+		/* SETUP pid */
+		qtd_fill(qtd, urb->setup_packet,
+				sizeof(struct usb_ctrlrequest),
+				token | SETUP_PID);
+
+		/* ... and always at least one more pid */
+		token ^= DATA_TOGGLE;
+		qtd_prev = qtd;
+		qtd = isp1760_qtd_alloc(priv, flags);
+		if (!qtd)
+			goto cleanup;
+		qtd->urb = urb;
+		qtd_prev->hw_next = qtd;
+		list_add_tail(&qtd->qtd_list, head);
+
+		/* for zero length DATA stages, STATUS is always IN */
+		if (len == 0)
+			token |= IN_PID;
+	}
+
+	/*
+	 * data transfer stage:  buffer setup
+	 */
+	buf = urb->transfer_buffer;
+
+	if (is_input)
+		token |= IN_PID;
+	else
+		token |= OUT_PID;
+
+	maxpacket = max_packet(usb_maxpacket(urb->dev, urb->pipe, !is_input));
+
+	/*
+	 * buffer gets wrapped in one or more qtds;
+	 * last one may be "short" (including zero len)
+	 * and may serve as a control status ack
+	 */
+	for (;;) {
+		int this_qtd_len;
+
+		if (!buf && len) {
+			/* XXX This looks like usb storage / SCSI bug */
+			printk(KERN_ERR "buf is null, dma is %08lx len is %d\n",
+					(long unsigned)urb->transfer_dma, len);
+			WARN_ON(1);
+		}
+
+		this_qtd_len = qtd_fill(qtd, buf, len, token);
+		len -= this_qtd_len;
+		buf += this_qtd_len;
+
+		/* qh makes control packets use qtd toggle; maybe switch it */
+		if ((maxpacket & (this_qtd_len + (maxpacket - 1))) == 0)
+			token ^= DATA_TOGGLE;
+
+		if (len <= 0)
+			break;
+
+		qtd_prev = qtd;
+		qtd = isp1760_qtd_alloc(priv, flags);
+		if (!qtd)
+			goto cleanup;
+		qtd->urb = urb;
+		qtd_prev->hw_next = qtd;
+		list_add_tail(&qtd->qtd_list, head);
+	}
+
+	/*
+	 * control requests may need a terminating data "status" ack;
+	 * bulk ones may need a terminating short packet (zero length).
+	 */
+	if (urb->transfer_buffer_length != 0) {
+		int one_more = 0;
+
+		if (usb_pipecontrol(urb->pipe)) {
+			one_more = 1;
+			/* "in" <--> "out"  */
+			token ^= IN_PID;
+			/* force DATA1 */
+			token |= DATA_TOGGLE;
+		} else if (usb_pipebulk(urb->pipe)
+				&& (urb->transfer_flags & URB_ZERO_PACKET)
+				&& !(urb->transfer_buffer_length % maxpacket)) {
+			one_more = 1;
+		}
+		if (one_more) {
+			qtd_prev = qtd;
+			qtd = isp1760_qtd_alloc(priv, flags);
+			if (!qtd)
+				goto cleanup;
+			qtd->urb = urb;
+			qtd_prev->hw_next = qtd;
+			list_add_tail(&qtd->qtd_list, head);
+
+			/* never any data in such packets */
+			qtd_fill(qtd, NULL, 0, token);
+		}
+	}
+
+	qtd->status = URB_COMPLETE_NOTIFY;
+	return head;
+
+cleanup:
+	qtd_list_free(priv, urb, head);
+	return NULL;
+}
+
+static int isp1760_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
+		gfp_t mem_flags)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(hcd);
+	struct list_head qtd_list;
+	packet_enqueue *pe;
+
+	INIT_LIST_HEAD(&qtd_list);
+
+	switch (usb_pipetype(urb->pipe)) {
+	case PIPE_CONTROL:
+	case PIPE_BULK:
+
+		if (!qh_urb_transaction(priv, urb, &qtd_list, mem_flags))
+			return -ENOMEM;
+		pe =  enqueue_an_ATL_packet;
+		break;
+
+	case PIPE_INTERRUPT:
+		if (!qh_urb_transaction(priv, urb, &qtd_list, mem_flags))
+			return -ENOMEM;
+		pe = enqueue_an_INT_packet;
+		break;
+
+	case PIPE_ISOCHRONOUS:
+		printk(KERN_ERR "PIPE_ISOCHRONOUS ain't supported\n");
+	default:
+		return -EPIPE;
+	}
+
+	isp1760_prepare_enqueue(priv, urb, &qtd_list, mem_flags, pe);
+	return 0;
+}
+
+static int isp1760_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
+		int status)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(hcd);
+	struct inter_packet_info *ints;
+	u32 i;
+	u32 reg_base, or_reg, skip_reg;
+	int flags;
+	struct ptd ptd;
+
+	switch (usb_pipetype(urb->pipe)) {
+	case PIPE_ISOCHRONOUS:
+		return -EPIPE;
+		break;
+
+	case PIPE_INTERRUPT:
+		ints = priv->int_ints;
+		reg_base = INT_REGS_OFFSET;
+		or_reg = HC_INT_IRQ_MASK_OR_REG;
+		skip_reg = HC_INT_PTD_SKIPMAP_REG;
+		break;
+
+	default:
+		ints = priv->atl_ints;
+		reg_base = ATL_REGS_OFFSET;
+		or_reg = HC_ATL_IRQ_MASK_OR_REG;
+		skip_reg = HC_ATL_PTD_SKIPMAP_REG;
+		break;
+	}
+
+	memset(&ptd, 0, sizeof(ptd));
+	spin_lock_irqsave(&priv->lock, flags);
+
+	for (i = 0; i < 32; i++) {
+		if (ints->urb == urb) {
+			u32 skip_map;
+			u32 or_map;
+			struct isp1760_qtd *qtd;
+
+			skip_map = isp1760_readl(hcd->regs + skip_reg);
+			skip_map |= 1 << i;
+			isp1760_writel(skip_map, hcd->regs + skip_reg);
+
+			or_map = isp1760_readl(hcd->regs + or_reg);
+			or_map &= ~(1 << i);
+			isp1760_writel(or_map, hcd->regs + or_reg);
+
+			priv_write_copy(priv, (u32 *)&ptd, hcd->regs + reg_base
+					+ i * sizeof(ptd), sizeof(ptd));
+			qtd = ints->qtd;
+
+			clean_up_qtdlist(qtd);
+
+			free_mem(priv, ints->payload);
+
+			ints->urb = NULL;
+			ints->qh = NULL;
+			ints->qtd = NULL;
+			ints->data_buffer = NULL;
+			ints->payload = 0;
+
+			isp1760_urb_done(priv, urb, status);
+			break;
+		}
+		ints++;
+	}
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+	return 0;
+}
+
+static irqreturn_t isp1760_irq(struct usb_hcd *usb_hcd)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(usb_hcd);
+	u32 imask;
+	irqreturn_t irqret = IRQ_NONE;
+
+	spin_lock(&priv->lock);
+
+	if (!(usb_hcd->state & HC_STATE_RUNNING))
+		goto leave;
+
+	imask = isp1760_readl(usb_hcd->regs + HC_INTERRUPT_REG);
+	if (unlikely(!imask))
+		goto leave;
+
+	isp1760_writel(imask, usb_hcd->regs + HC_INTERRUPT_REG);
+	if (imask & HC_ATL_INT)
+		do_atl_int(usb_hcd);
+
+	if (imask & HC_INTL_INT)
+		do_intl_int(usb_hcd);
+
+	irqret = IRQ_HANDLED;
+leave:
+	spin_unlock(&priv->lock);
+	return irqret;
+}
+
+static int isp1760_hub_status_data(struct usb_hcd *hcd, char *buf)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(hcd);
+	u32 temp, status = 0;
+	u32 mask;
+	int retval = 1;
+	unsigned long flags;
+
+	/* if !USB_SUSPEND, root hub timers won't get shut down ... */
+	if (!HC_IS_RUNNING(hcd->state))
+		return 0;
+
+	/* init status to no-changes */
+	buf[0] = 0;
+	mask = PORT_CSC;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	temp = isp1760_readl(hcd->regs + HC_PORTSC1);
+
+	if (temp & PORT_OWNER) {
+		if (temp & PORT_CSC) {
+			temp &= ~PORT_CSC;
+			isp1760_writel(temp, hcd->regs + HC_PORTSC1);
+			goto done;
+		}
+	}
+
+	/*
+	 * Return status information even for ports with OWNER set.
+	 * Otherwise khubd wouldn't see the disconnect event when a
+	 * high-speed device is switched over to the companion
+	 * controller by the user.
+	 */
+
+	if ((temp & mask) != 0
+			|| ((temp & PORT_RESUME) != 0
+				&& time_after_eq(jiffies,
+					priv->reset_done))) {
+		buf [0] |= 1 << (0 + 1);
+		status = STS_PCD;
+	}
+	/* FIXME autosuspend idle root hubs */
+done:
+	spin_unlock_irqrestore(&priv->lock, flags);
+	return status ? retval : 0;
+}
+
+static void isp1760_hub_descriptor(struct isp1760_hcd *priv,
+		struct usb_hub_descriptor *desc)
+{
+	int ports = HCS_N_PORTS(priv->hcs_params);
+	u16 temp;
+
+	desc->bDescriptorType = 0x29;
+	/* priv 1.0, 2.3.9 says 20ms max */
+	desc->bPwrOn2PwrGood = 10;
+	desc->bHubContrCurrent = 0;
+
+	desc->bNbrPorts = ports;
+	temp = 1 + (ports / 8);
+	desc->bDescLength = 7 + 2 * temp;
+
+	/* two bitmaps:  ports removable, and usb 1.0 legacy PortPwrCtrlMask */
+	memset(&desc->bitmap[0], 0, temp);
+	memset(&desc->bitmap[temp], 0xff, temp);
+
+	/* per-port overcurrent reporting */
+	temp = 0x0008;
+	if (HCS_PPC(priv->hcs_params))
+		/* per-port power control */
+		temp |= 0x0001;
+	else
+		/* no power switching */
+		temp |= 0x0002;
+	desc->wHubCharacteristics = cpu_to_le16(temp);
+}
+
+#define	PORT_WAKE_BITS	(PORT_WKOC_E|PORT_WKDISC_E|PORT_WKCONN_E)
+
+static int check_reset_complete(struct isp1760_hcd *priv, int index,
+		u32 __iomem *status_reg, int port_status)
+{
+	if (!(port_status & PORT_CONNECT))
+		return port_status;
+
+	/* if reset finished and it's still not enabled -- handoff */
+	if (!(port_status & PORT_PE)) {
+
+		printk(KERN_ERR "port %d full speed --> companion\n",
+			index + 1);
+
+		port_status |= PORT_OWNER;
+		port_status &= ~PORT_RWC_BITS;
+		isp1760_writel(port_status, status_reg);
+
+	} else
+		printk(KERN_ERR "port %d high speed\n", index + 1);
+
+	return port_status;
+}
+
+static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
+		u16 wValue, u16 wIndex, char *buf, u16 wLength)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(hcd);
+	int ports = HCS_N_PORTS(priv->hcs_params);
+	u32 __iomem *status_reg = hcd->regs + HC_PORTSC1;
+	u32 temp, status;
+	unsigned long flags;
+	int retval = 0;
+	unsigned selector;
+
+	/*
+	 * FIXME:  support SetPortFeatures USB_PORT_FEAT_INDICATOR.
+	 * HCS_INDICATOR may say we can change LEDs to off/amber/green.
+	 * (track current state ourselves) ... blink for diagnostics,
+	 * power, "this is the one", etc.  EHCI spec supports this.
+	 */
+
+	spin_lock_irqsave(&priv->lock, flags);
+	switch (typeReq) {
+	case ClearHubFeature:
+		switch (wValue) {
+		case C_HUB_LOCAL_POWER:
+		case C_HUB_OVER_CURRENT:
+			/* no hub-wide feature/status flags */
+			break;
+		default:
+			goto error;
+		}
+		break;
+	case ClearPortFeature:
+		if (!wIndex || wIndex > ports)
+			goto error;
+		wIndex--;
+		temp = isp1760_readl(status_reg);
+
+		/*
+		 * Even if OWNER is set, so the port is owned by the
+		 * companion controller, khubd needs to be able to clear
+		 * the port-change status bits (especially
+		 * USB_PORT_FEAT_C_CONNECTION).
+		 */
+
+		switch (wValue) {
+		case USB_PORT_FEAT_ENABLE:
+			isp1760_writel(temp & ~PORT_PE, status_reg);
+			break;
+		case USB_PORT_FEAT_C_ENABLE:
+			/* XXX error? */
+			break;
+		case USB_PORT_FEAT_SUSPEND:
+			if (temp & PORT_RESET)
+				goto error;
+
+			if (temp & PORT_SUSPEND) {
+				if ((temp & PORT_PE) == 0)
+					goto error;
+				/* resume signaling for 20 msec */
+				temp &= ~(PORT_RWC_BITS);
+				isp1760_writel(temp | PORT_RESUME,
+						status_reg);
+				priv->reset_done = jiffies +
+					msecs_to_jiffies(20);
+			}
+			break;
+		case USB_PORT_FEAT_C_SUSPEND:
+			/* we auto-clear this feature */
+			break;
+		case USB_PORT_FEAT_POWER:
+			if (HCS_PPC(priv->hcs_params))
+				isp1760_writel(temp & ~PORT_POWER, status_reg);
+			break;
+		case USB_PORT_FEAT_C_CONNECTION:
+			isp1760_writel(temp | PORT_CSC,
+					status_reg);
+			break;
+		case USB_PORT_FEAT_C_OVER_CURRENT:
+			/* XXX error ?*/
+			break;
+		case USB_PORT_FEAT_C_RESET:
+			/* GetPortStatus clears reset */
+			break;
+		default:
+			goto error;
+		}
+		isp1760_readl(hcd->regs + HC_USBCMD);
+		break;
+	case GetHubDescriptor:
+		isp1760_hub_descriptor(priv, (struct usb_hub_descriptor *)
+			buf);
+		break;
+	case GetHubStatus:
+		/* no hub-wide feature/status flags */
+		memset(buf, 0, 4);
+		break;
+	case GetPortStatus:
+		if (!wIndex || wIndex > ports)
+			goto error;
+		wIndex--;
+		status = 0;
+		temp = isp1760_readl(status_reg);
+
+		/* wPortChange bits */
+		if (temp & PORT_CSC)
+			status |= 1 << USB_PORT_FEAT_C_CONNECTION;
+
+
+		/* whoever resumes must GetPortStatus to complete it!! */
+		if (temp & PORT_RESUME) {
+			printk(KERN_ERR "Port resume should be skipped.\n");
+
+			/* Remote Wakeup received? */
+			if (!priv->reset_done) {
+				/* resume signaling for 20 msec */
+				priv->reset_done = jiffies
+						+ msecs_to_jiffies(20);
+				/* check the port again */
+				mod_timer(&priv_to_hcd(priv)->rh_timer,
+						priv->reset_done);
+			}
+
+			/* resume completed? */
+			else if (time_after_eq(jiffies,
+					priv->reset_done)) {
+				status |= 1 << USB_PORT_FEAT_C_SUSPEND;
+				priv->reset_done = 0;
+
+				/* stop resume signaling */
+				temp = isp1760_readl(status_reg);
+				isp1760_writel(
+					temp & ~(PORT_RWC_BITS | PORT_RESUME),
+					status_reg);
+				retval = handshake(priv, status_reg,
+					   PORT_RESUME, 0, 2000 /* 2msec */);
+				if (retval != 0) {
+					isp1760_err(priv,
+						"port %d resume error %d\n",
+						wIndex + 1, retval);
+					goto error;
+				}
+				temp &= ~(PORT_SUSPEND|PORT_RESUME|(3<<10));
+			}
+		}
+
+		/* whoever resets must GetPortStatus to complete it!! */
+		if ((temp & PORT_RESET)
+				&& time_after_eq(jiffies,
+					priv->reset_done)) {
+			status |= 1 << USB_PORT_FEAT_C_RESET;
+			priv->reset_done = 0;
+
+			/* force reset to complete */
+			isp1760_writel(temp & ~PORT_RESET,
+					status_reg);
+			/* REVISIT:  some hardware needs 550+ usec to clear
+			 * this bit; seems too long to spin routinely...
+			 */
+			retval = handshake(priv, status_reg,
+					PORT_RESET, 0, 750);
+			if (retval != 0) {
+				isp1760_err(priv, "port %d reset error %d\n",
+						wIndex + 1, retval);
+				goto error;
+			}
+
+			/* see what we found out */
+			temp = check_reset_complete(priv, wIndex, status_reg,
+					isp1760_readl(status_reg));
+		}
+		/*
+		 * Even if OWNER is set, there's no harm letting khubd
+		 * see the wPortStatus values (they should all be 0 except
+		 * for PORT_POWER anyway).
+		 */
+
+		if (temp & PORT_OWNER)
+			printk(KERN_ERR "Warning: PORT_OWNER is set\n");
+
+		if (temp & PORT_CONNECT) {
+			status |= 1 << USB_PORT_FEAT_CONNECTION;
+			/* status may be from integrated TT */
+			status |= ehci_port_speed(priv, temp);
+		}
+		if (temp & PORT_PE)
+			status |= 1 << USB_PORT_FEAT_ENABLE;
+		if (temp & (PORT_SUSPEND|PORT_RESUME))
+			status |= 1 << USB_PORT_FEAT_SUSPEND;
+		if (temp & PORT_RESET)
+			status |= 1 << USB_PORT_FEAT_RESET;
+		if (temp & PORT_POWER)
+			status |= 1 << USB_PORT_FEAT_POWER;
+
+		put_unaligned(cpu_to_le32(status), (__le32 *) buf);
+		break;
+	case SetHubFeature:
+		switch (wValue) {
+		case C_HUB_LOCAL_POWER:
+		case C_HUB_OVER_CURRENT:
+			/* no hub-wide feature/status flags */
+			break;
+		default:
+			goto error;
+		}
+		break;
+	case SetPortFeature:
+		selector = wIndex >> 8;
+		wIndex &= 0xff;
+		if (!wIndex || wIndex > ports)
+			goto error;
+		wIndex--;
+		temp = isp1760_readl(status_reg);
+		if (temp & PORT_OWNER)
+			break;
+
+/*		temp &= ~PORT_RWC_BITS; */
+		switch (wValue) {
+		case USB_PORT_FEAT_ENABLE:
+			isp1760_writel(temp | PORT_PE, status_reg);
+			break;
+
+		case USB_PORT_FEAT_SUSPEND:
+			if ((temp & PORT_PE) == 0
+					|| (temp & PORT_RESET) != 0)
+				goto error;
+
+			isp1760_writel(temp | PORT_SUSPEND, status_reg);
+			break;
+		case USB_PORT_FEAT_POWER:
+			if (HCS_PPC(priv->hcs_params))
+				isp1760_writel(temp | PORT_POWER,
+						status_reg);
+			break;
+		case USB_PORT_FEAT_RESET:
+			if (temp & PORT_RESUME)
+				goto error;
+			/* line status bits may report this as low speed,
+			 * which can be fine if this root hub has a
+			 * transaction translator built in.
+			 */
+			if ((temp & (PORT_PE|PORT_CONNECT)) == PORT_CONNECT
+					&& PORT_USB11(temp)) {
+				temp |= PORT_OWNER;
+			} else {
+				temp |= PORT_RESET;
+				temp &= ~PORT_PE;
+
+				/*
+				 * caller must wait, then call GetPortStatus
+				 * usb 2.0 spec says 50 ms resets on root
+				 */
+				priv->reset_done = jiffies +
+					msecs_to_jiffies(50);
+			}
+			isp1760_writel(temp, status_reg);
+			break;
+		default:
+			goto error;
+		}
+		isp1760_readl(hcd->regs + HC_USBCMD);
+		break;
+
+	default:
+error:
+		/* "stall" on error */
+		retval = -EPIPE;
+	}
+	spin_unlock_irqrestore(&priv->lock, flags);
+	return retval;
+}
+
+static void isp1760_endpoint_disable(struct usb_hcd *usb_hcd,
+		struct usb_host_endpoint *ep)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(usb_hcd);
+	struct isp1760_qh *qh;
+	struct isp1760_qtd *qtd;
+	u32 flags;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	qh = ep->hcpriv;
+	if (!qh)
+		goto out;
+
+	ep->hcpriv = NULL;
+	do {
+		/* more than entry might get removed */
+		if (list_empty(&qh->qtd_list))
+			break;
+
+		qtd = list_first_entry(&qh->qtd_list, struct isp1760_qtd,
+				qtd_list);
+
+		if (qtd->status & URB_ENQUEUED) {
+
+			spin_unlock_irqrestore(&priv->lock, flags);
+			isp1760_urb_dequeue(usb_hcd, qtd->urb, -ECONNRESET);
+			spin_lock_irqsave(&priv->lock, flags);
+		} else {
+			struct urb *urb;
+
+			urb = qtd->urb;
+			clean_up_qtdlist(qtd);
+			isp1760_urb_done(priv, urb, -ECONNRESET);
+		}
+	} while (1);
+
+	qh_destroy(qh);
+	/* remove requests and leak them.
+	 * ATL are pretty fast done, INT could take a while...
+	 * The latter shoule be removed
+	 */
+out:
+	spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static int isp1760_get_frame(struct usb_hcd *hcd)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(hcd);
+	u32 fr;
+
+	fr = isp1760_readl(hcd->regs + HC_FRINDEX);
+	return (fr >> 3) % priv->periodic_size;
+}
+
+static void isp1760_stop(struct usb_hcd *hcd)
+{
+	struct isp1760_hcd *priv = hcd_to_priv(hcd);
+
+	isp1760_hub_control(hcd, ClearPortFeature, USB_PORT_FEAT_POWER,	1,
+			NULL, 0);
+	mdelay(20);
+
+	spin_lock_irq(&priv->lock);
+	ehci_reset(priv);
+	/* Disable IRQ */
+	isp1760_writel(HW_DATA_BUS_32BIT, hcd->regs + HC_HW_MODE_CTRL);
+	spin_unlock_irq(&priv->lock);
+
+	isp1760_writel(0, hcd->regs + HC_CONFIGFLAG);
+}
+
+static void isp1760_shutdown(struct usb_hcd *hcd)
+{
+	u32 command;
+
+	isp1760_stop(hcd);
+	isp1760_writel(HW_DATA_BUS_32BIT, hcd->regs + HC_HW_MODE_CTRL);
+
+	command = isp1760_readl(hcd->regs + HC_USBCMD);
+	command &= ~CMD_RUN;
+	isp1760_writel(command, hcd->regs + HC_USBCMD);
+}
+
+static const struct hc_driver isp1760_hc_driver = {
+	.description		= "isp1760-hcd",
+	.product_desc		= "NXP ISP1760 USB Host Controller",
+	.hcd_priv_size		= sizeof(struct isp1760_hcd),
+	.irq			= isp1760_irq,
+	.flags			= HCD_MEMORY | HCD_USB2,
+	.reset			= isp1760_hc_setup,
+	.start			= isp1760_run,
+	.stop			= isp1760_stop,
+	.shutdown		= isp1760_shutdown,
+	.urb_enqueue		= isp1760_urb_enqueue,
+	.urb_dequeue		= isp1760_urb_dequeue,
+	.endpoint_disable	= isp1760_endpoint_disable,
+	.get_frame_number	= isp1760_get_frame,
+	.hub_status_data	= isp1760_hub_status_data,
+	.hub_control		= isp1760_hub_control,
+};
+
+int __init init_kmem_once(void)
+{
+	qtd_cachep = kmem_cache_create("isp1760_qtd",
+			sizeof(struct isp1760_qtd), 0, SLAB_TEMPORARY |
+			SLAB_MEM_SPREAD, NULL);
+
+	if (!qtd_cachep)
+		return -ENOMEM;
+
+	qh_cachep = kmem_cache_create("isp1760_qh", sizeof(struct isp1760_qh),
+			0, SLAB_TEMPORARY | SLAB_MEM_SPREAD, NULL);
+
+	if (!qh_cachep) {
+		kmem_cache_destroy(qtd_cachep);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+void deinit_kmem_cache(void)
+{
+	kmem_cache_destroy(qtd_cachep);
+	kmem_cache_destroy(qh_cachep);
+}
+
+struct usb_hcd *isp1760_register(u64 res_start, u64 res_len, int irq,
+		u64 irqflags, struct device *dev, const char *busname)
+{
+	struct usb_hcd *hcd;
+	struct isp1760_hcd *priv;
+	int ret;
+
+	if (usb_disabled())
+		return ERR_PTR(-ENODEV);
+
+	/* prevent usb-core allocating DMA pages */
+	dev->dma_mask = NULL;
+
+	hcd = usb_create_hcd(&isp1760_hc_driver, dev, dev->bus_id);
+	if (!hcd)
+		return ERR_PTR(-ENOMEM);
+
+	priv = hcd_to_priv(hcd);
+	init_memory(priv);
+	hcd->regs = ioremap(res_start, res_len);
+	if (!hcd->regs) {
+		ret = -EIO;
+		goto err_put;
+	}
+
+	ret = usb_add_hcd(hcd, irq, irqflags);
+	if (ret)
+		goto err_unmap;
+
+	hcd->irq = irq;
+	hcd->rsrc_start = res_start;
+	hcd->rsrc_len = res_len;
+
+	return hcd;
+
+err_unmap:
+	 iounmap(hcd->regs);
+
+err_put:
+	 usb_put_hcd(hcd);
+
+	 return ERR_PTR(ret);
+}
+
+MODULE_DESCRIPTION("Driver for the ISP1760 USB-controller from NXP");
+MODULE_AUTHOR("Sebastian Siewior <bigeasy@linuxtronix.de>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/host/isp1760-hcd.h b/drivers/usb/host/isp1760-hcd.h
new file mode 100644
index 00000000000..3d86d0f6b14
--- /dev/null
+++ b/drivers/usb/host/isp1760-hcd.h
@@ -0,0 +1,206 @@
+#ifndef _ISP1760_HCD_H_
+#define _ISP1760_HCD_H_
+
+/* exports for if */
+struct usb_hcd *isp1760_register(u64 res_start, u64 res_len, int irq,
+		u64 irqflags, struct device *dev, const char *busname);
+int init_kmem_once(void);
+void deinit_kmem_cache(void);
+
+/* EHCI capability registers */
+#define HC_CAPLENGTH		0x00
+#define HC_HCSPARAMS		0x04
+#define HC_HCCPARAMS		0x08
+
+/* EHCI operational registers */
+#define HC_USBCMD		0x20
+#define HC_USBSTS		0x24
+#define HC_FRINDEX		0x2c
+#define HC_CONFIGFLAG		0x60
+#define HC_PORTSC1		0x64
+#define HC_ISO_PTD_DONEMAP_REG	0x130
+#define HC_ISO_PTD_SKIPMAP_REG	0x134
+#define HC_ISO_PTD_LASTPTD_REG	0x138
+#define HC_INT_PTD_DONEMAP_REG	0x140
+#define HC_INT_PTD_SKIPMAP_REG	0x144
+#define HC_INT_PTD_LASTPTD_REG	0x148
+#define HC_ATL_PTD_DONEMAP_REG	0x150
+#define HC_ATL_PTD_SKIPMAP_REG	0x154
+#define HC_ATL_PTD_LASTPTD_REG	0x158
+
+/* Configuration Register */
+#define HC_HW_MODE_CTRL		0x300
+#define ALL_ATX_RESET		(1 << 31)
+#define HW_DATA_BUS_32BIT	(1 << 8)
+#define HW_DACK_POL_HIGH	(1 << 6)
+#define HW_DREQ_POL_HIGH	(1 << 5)
+#define HW_INTR_HIGH_ACT	(1 << 2)
+#define HW_INTR_EDGE_TRIG	(1 << 1)
+#define HW_GLOBAL_INTR_EN	(1 << 0)
+
+#define HC_CHIP_ID_REG		0x304
+#define HC_SCRATCH_REG		0x308
+
+#define HC_RESET_REG		0x30c
+#define SW_RESET_RESET_HC	(1 << 1)
+#define SW_RESET_RESET_ALL	(1 << 0)
+
+#define HC_BUFFER_STATUS_REG	0x334
+#define ATL_BUFFER		0x1
+#define INT_BUFFER		0x2
+#define ISO_BUFFER		0x4
+#define BUFFER_MAP		0x7
+
+#define HC_MEMORY_REG		0x33c
+#define HC_PORT1_CTRL		0x374
+#define PORT1_POWER		(3 << 3)
+#define PORT1_INIT1		(1 << 7)
+#define PORT1_INIT2		(1 << 23)
+
+/* Interrupt Register */
+#define HC_INTERRUPT_REG	0x310
+
+#define HC_INTERRUPT_ENABLE	0x314
+#define INTERRUPT_ENABLE_MASK	(HC_INTL_INT | HC_ATL_INT | HC_EOT_INT)
+#define FINAL_HW_CONFIG	(HW_GLOBAL_INTR_EN | HW_DATA_BUS_32BIT)
+
+#define HC_ISO_INT		(1 << 9)
+#define HC_ATL_INT		(1 << 8)
+#define HC_INTL_INT		(1 << 7)
+#define HC_EOT_INT		(1 << 3)
+#define HC_SOT_INT		(1 << 1)
+
+#define HC_ISO_IRQ_MASK_OR_REG	0x318
+#define HC_INT_IRQ_MASK_OR_REG	0x31C
+#define HC_ATL_IRQ_MASK_OR_REG	0x320
+#define HC_ISO_IRQ_MASK_AND_REG	0x324
+#define HC_INT_IRQ_MASK_AND_REG	0x328
+#define HC_ATL_IRQ_MASK_AND_REG	0x32C
+
+/* Register sets */
+#define HC_BEGIN_OF_ATL		0x0c00
+#define HC_BEGIN_OF_INT		0x0800
+#define HC_BEGIN_OF_ISO		0x0400
+#define HC_BEGIN_OF_PAYLOAD	0x1000
+
+/* urb state*/
+#define DELETE_URB		(0x0008)
+#define NO_TRANSFER_ACTIVE	(0xffffffff)
+
+#define ATL_REGS_OFFSET		(0xc00)
+#define INT_REGS_OFFSET		(0x800)
+
+/* Philips Transfer Descriptor (PTD) */
+struct ptd {
+	__le32 dw0;
+	__le32 dw1;
+	__le32 dw2;
+	__le32 dw3;
+	__le32 dw4;
+	__le32 dw5;
+	__le32 dw6;
+	__le32 dw7;
+};
+
+struct inter_packet_info {
+	void *data_buffer;
+	u32 payload;
+#define PTD_FIRE_NEXT		(1 << 0)
+#define PTD_URB_FINISHED	(1 << 1)
+	struct urb *urb;
+	struct isp1760_qh *qh;
+	struct isp1760_qtd *qtd;
+};
+
+
+typedef void (packet_enqueue)(struct usb_hcd *hcd, struct isp1760_qh *qh,
+		struct isp1760_qtd *qtd);
+
+#define isp1760_info(priv, fmt, args...) \
+	dev_info(priv_to_hcd(priv)->self.controller, fmt, ##args)
+
+#define isp1760_err(priv, fmt, args...) \
+	dev_err(priv_to_hcd(priv)->self.controller, fmt, ##args)
+
+/* chip memory management */
+struct memory_chunk {
+	unsigned int start;
+	unsigned int size;
+	unsigned int free;
+};
+
+/*
+ * 60kb divided in:
+ * - 32 blocks @ 256  bytes
+ * - 20 blocks @ 1024 bytes
+ * -  4 blocks @ 8192 bytes
+ */
+
+#define BLOCK_1_NUM 32
+#define BLOCK_2_NUM 20
+#define BLOCK_3_NUM 4
+
+#define BLOCK_1_SIZE 256
+#define BLOCK_2_SIZE 1024
+#define BLOCK_3_SIZE 8192
+#define BLOCKS (BLOCK_1_NUM + BLOCK_2_NUM + BLOCK_3_NUM)
+#define PAYLOAD_SIZE 0xf000
+
+/* I saw if some reloads if the pointer was negative */
+#define ISP1760_NULL_POINTER	(0x400)
+
+/* ATL */
+/* DW0 */
+#define PTD_VALID			1
+#define PTD_LENGTH(x)			(((u32) x) << 3)
+#define PTD_MAXPACKET(x)		(((u32) x) << 18)
+#define PTD_MULTI(x)			(((u32) x) << 29)
+#define PTD_ENDPOINT(x)			(((u32)	x) << 31)
+/* DW1 */
+#define PTD_DEVICE_ADDR(x)		(((u32) x) << 3)
+#define PTD_PID_TOKEN(x)		(((u32) x) << 10)
+#define PTD_TRANS_BULK			((u32) 2 << 12)
+#define PTD_TRANS_INT			((u32) 3 << 12)
+#define PTD_TRANS_SPLIT			((u32) 1 << 14)
+#define PTD_SE_USB_LOSPEED		((u32) 2 << 16)
+#define PTD_PORT_NUM(x)			(((u32) x) << 18)
+#define PTD_HUB_NUM(x)			(((u32) x) << 25)
+#define PTD_PING(x)			(((u32) x) << 26)
+/* DW2 */
+#define PTD_RL_CNT(x)			(((u32) x) << 25)
+#define PTD_DATA_START_ADDR(x)		(((u32) x) << 8)
+#define BASE_ADDR			0x1000
+/* DW3 */
+#define PTD_CERR(x)			(((u32) x) << 23)
+#define PTD_NAC_CNT(x)			(((u32) x) << 19)
+#define PTD_ACTIVE			((u32) 1 << 31)
+#define PTD_DATA_TOGGLE(x)		(((u32) x) << 25)
+
+#define DW3_HALT_BIT			(1 << 30)
+#define DW3_ERROR_BIT			(1 << 28)
+#define DW3_QTD_ACTIVE			(1 << 31)
+
+#define INT_UNDERRUN			(1 << 2)
+#define INT_BABBLE			(1 << 1)
+#define INT_EXACT			(1 << 0)
+
+#define DW1_GET_PID(x)			(((x) >> 10) & 0x3)
+#define PTD_XFERRED_LENGTH(x)		((x) & 0x7fff)
+#define PTD_XFERRED_LENGTH_LO(x)	((x) & 0x7ff)
+
+#define SETUP_PID	(2)
+#define IN_PID		(1)
+#define OUT_PID		(0)
+#define GET_QTD_TOKEN_TYPE(x)	((x) & 0x3)
+
+#define DATA_TOGGLE		(1 << 31)
+#define GET_DATA_TOGGLE(x)	((x) >> 31)
+
+/* Errata 1 */
+#define RL_COUNTER	(0)
+#define NAK_COUNTER	(0)
+#define ERR_COUNTER	(2)
+
+#define HC_ATL_PL_SIZE	(8192)
+
+#endif
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
new file mode 100644
index 00000000000..73fb2a38f1e
--- /dev/null
+++ b/drivers/usb/host/isp1760-if.c
@@ -0,0 +1,298 @@
+/*
+ * Glue code for the ISP1760 driver and bus
+ * Currently there is support for
+ * - OpenFirmware
+ * - PCI
+ *
+ * (c) 2007 Sebastian Siewior <bigeasy@linutronix.de>
+ *
+ */
+
+#include <linux/usb.h>
+#include <linux/io.h>
+
+#include "../core/hcd.h"
+#include "isp1760-hcd.h"
+
+#ifdef CONFIG_USB_ISP1760_OF
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#endif
+
+#ifdef CONFIG_USB_ISP1760_PCI
+#include <linux/pci.h>
+#endif
+
+#ifdef CONFIG_USB_ISP1760_OF
+static int of_isp1760_probe(struct of_device *dev,
+		const struct of_device_id *match)
+{
+	struct usb_hcd *hcd;
+	struct device_node *dp = dev->node;
+	struct resource *res;
+	struct resource memory;
+	struct of_irq oirq;
+	int virq;
+	u64 res_len;
+	int ret;
+
+	ret = of_address_to_resource(dp, 0, &memory);
+	if (ret)
+		return -ENXIO;
+
+	res = request_mem_region(memory.start, memory.end - memory.start + 1,
+			dev->dev.bus_id);
+	if (!res)
+		return -EBUSY;
+
+	res_len = memory.end - memory.start + 1;
+
+	if (of_irq_map_one(dp, 0, &oirq)) {
+		ret = -ENODEV;
+		goto release_reg;
+	}
+
+	virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
+			oirq.size);
+
+	hcd = isp1760_register(memory.start, res_len, virq,
+		IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev->dev.bus_id);
+	if (IS_ERR(hcd)) {
+		ret = PTR_ERR(hcd);
+		goto release_reg;
+	}
+
+	dev_set_drvdata(&dev->dev, hcd);
+	return ret;
+
+release_reg:
+	release_mem_region(memory.start, memory.end - memory.start + 1);
+	return ret;
+}
+
+static int of_isp1760_remove(struct of_device *dev)
+{
+	struct usb_hcd *hcd = dev_get_drvdata(&dev->dev);
+
+	dev_set_drvdata(&dev->dev, NULL);
+
+	usb_remove_hcd(hcd);
+	iounmap(hcd->regs);
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	usb_put_hcd(hcd);
+	return 0;
+}
+
+static struct of_device_id of_isp1760_match[] = {
+	{
+		.compatible = "nxp,usb-isp1760",
+	},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, of_isp1760_match);
+
+static struct of_platform_driver isp1760_of_driver = {
+	.name           = "nxp-isp1760",
+	.match_table    = of_isp1760_match,
+	.probe          = of_isp1760_probe,
+	.remove         = of_isp1760_remove,
+};
+#endif
+
+#ifdef CONFIG_USB_ISP1760_PCI
+static u32 nxp_pci_io_base;
+static u32 iolength;
+static u32 pci_mem_phy0;
+static u32 length;
+static u8 *chip_addr;
+static u8 *iobase;
+
+static int __devinit isp1761_pci_probe(struct pci_dev *dev,
+		const struct pci_device_id *id)
+{
+	u8 latency, limit;
+	__u32 reg_data;
+	int retry_count;
+	int length;
+	int status = 1;
+	struct usb_hcd *hcd;
+
+	if (usb_disabled())
+		return -ENODEV;
+
+	if (pci_enable_device(dev) < 0)
+		return -ENODEV;
+
+	if (!dev->irq)
+		return -ENODEV;
+
+	/* Grab the PLX PCI mem maped port start address we need  */
+	nxp_pci_io_base = pci_resource_start(dev, 0);
+	iolength = pci_resource_len(dev, 0);
+
+	if (!request_mem_region(nxp_pci_io_base, iolength, "ISP1761 IO MEM")) {
+		printk(KERN_ERR "request region #1\n");
+		return -EBUSY;
+	}
+
+	iobase = ioremap_nocache(nxp_pci_io_base, iolength);
+	if (!iobase) {
+		printk(KERN_ERR "ioremap #1\n");
+		release_mem_region(nxp_pci_io_base, iolength);
+		return -ENOMEM;
+	}
+	/* Grab the PLX PCI shared memory of the ISP 1761 we need  */
+	pci_mem_phy0 = pci_resource_start(dev, 3);
+	length = pci_resource_len(dev, 3);
+
+	if (length < 0xffff) {
+		printk(KERN_ERR "memory length for this resource is less than "
+				"required\n");
+		release_mem_region(nxp_pci_io_base, iolength);
+		iounmap(iobase);
+		return  -ENOMEM;
+	}
+
+	if (!request_mem_region(pci_mem_phy0, length, "ISP-PCI")) {
+		printk(KERN_ERR "host controller already in use\n");
+		release_mem_region(nxp_pci_io_base, iolength);
+		iounmap(iobase);
+		return -EBUSY;
+	}
+
+	/* bad pci latencies can contribute to overruns */
+	pci_read_config_byte(dev, PCI_LATENCY_TIMER, &latency);
+	if (latency) {
+		pci_read_config_byte(dev, PCI_MAX_LAT, &limit);
+		if (limit && limit < latency)
+			pci_write_config_byte(dev, PCI_LATENCY_TIMER, limit);
+	}
+
+	/* Try to check whether we can access Scratch Register of
+	 * Host Controller or not. The initial PCI access is retried until
+	 * local init for the PCI bridge is completed
+	 */
+	retry_count = 20;
+	reg_data = 0;
+	while ((reg_data != 0xFACE) && retry_count) {
+		/*by default host is in 16bit mode, so
+		 * io operations at this stage must be 16 bit
+		 * */
+		writel(0xface, chip_addr + HC_SCRATCH_REG);
+		udelay(100);
+		reg_data = readl(chip_addr + HC_SCRATCH_REG);
+		retry_count--;
+	}
+
+	/* Host Controller presence is detected by writing to scratch register
+	 * and reading back and checking the contents are same or not
+	 */
+	if (reg_data != 0xFACE) {
+		err("scratch register mismatch %x", reg_data);
+		goto clean;
+	}
+
+	pci_set_master(dev);
+
+	status = readl(iobase + 0x68);
+	status |= 0x900;
+	writel(status, iobase + 0x68);
+
+	dev->dev.dma_mask = NULL;
+	hcd = isp1760_register(pci_mem_phy0, length, dev->irq,
+		IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev->dev.bus_id);
+	pci_set_drvdata(dev, hcd);
+	if (!hcd)
+		return 0;
+clean:
+	status = -ENODEV;
+	iounmap(iobase);
+	release_mem_region(pci_mem_phy0, length);
+	release_mem_region(nxp_pci_io_base, iolength);
+	return status;
+}
+static void isp1761_pci_remove(struct pci_dev *dev)
+{
+	struct usb_hcd *hcd;
+
+	hcd = pci_get_drvdata(dev);
+
+	usb_remove_hcd(hcd);
+	iounmap(hcd->regs);
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	usb_put_hcd(hcd);
+
+	pci_disable_device(dev);
+
+	iounmap(iobase);
+	iounmap(chip_addr);
+
+	release_mem_region(nxp_pci_io_base, iolength);
+	release_mem_region(pci_mem_phy0, length);
+}
+
+static void isp1761_pci_shutdown(struct pci_dev *dev)
+{
+	printk(KERN_ERR "ips1761_pci_shutdown\n");
+}
+
+static const struct pci_device_id isp1760_plx [] = { {
+	/* handle any USB 2.0 EHCI controller */
+	PCI_DEVICE_CLASS(((PCI_CLASS_BRIDGE_OTHER << 8) | (0x06 << 16)), ~0),
+		.driver_data = 0,
+},
+{ /* end: all zeroes */ }
+};
+MODULE_DEVICE_TABLE(pci, isp1760_plx);
+
+static struct pci_driver isp1761_pci_driver = {
+	.name =         "isp1760",
+	.id_table =     isp1760_plx,
+	.probe =        isp1761_pci_probe,
+	.remove =       isp1761_pci_remove,
+	.shutdown =     isp1761_pci_shutdown,
+};
+#endif
+
+static int __init isp1760_init(void)
+{
+	int ret;
+
+	init_kmem_once();
+
+#ifdef CONFIG_USB_ISP1760_OF
+	ret = of_register_platform_driver(&isp1760_of_driver);
+	if (ret) {
+		deinit_kmem_cache();
+		return ret;
+	}
+#endif
+#ifdef CONFIG_USB_ISP1760_PCI
+	ret = pci_register_driver(&isp1761_pci_driver);
+	if (ret)
+		goto unreg_of;
+#endif
+	return ret;
+
+#ifdef CONFIG_USB_ISP1760_PCI
+unreg_of:
+#endif
+#ifdef CONFIG_USB_ISP1760_OF
+	of_unregister_platform_driver(&isp1760_of_driver);
+#endif
+	deinit_kmem_cache();
+	return ret;
+}
+module_init(isp1760_init);
+
+static void __exit isp1760_exit(void)
+{
+#ifdef CONFIG_USB_ISP1760_OF
+	of_unregister_platform_driver(&isp1760_of_driver);
+#endif
+#ifdef CONFIG_USB_ISP1760_PCI
+	pci_unregister_driver(&isp1761_pci_driver);
+#endif
+	deinit_kmem_cache();
+}
+module_exit(isp1760_exit);
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index 17dc2eccda8..79a78029f89 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -613,7 +613,7 @@ static void start_hnp(struct ohci_hcd *ohci);
 static inline int root_port_reset (struct ohci_hcd *ohci, unsigned port)
 {
 	__hc32 __iomem *portstat = &ohci->regs->roothub.portstatus [port];
-	u32	temp;
+	u32	temp = 0;
 	u16	now = ohci_readl(ohci, &ohci->regs->fmnumber);
 	u16	reset_done = now + PORT_RESET_MSEC;
 	int	limit_1 = DIV_ROUND_UP(PORT_RESET_MSEC, PORT_RESET_HW_MSEC);
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index d3e0d8aa398..3a7bfe7a887 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -234,7 +234,7 @@ static int resume_detect_interrupts_are_broken(struct uhci_hcd *uhci)
 	return 0;
 }
 
-static int remote_wakeup_is_broken(struct uhci_hcd *uhci)
+static int global_suspend_mode_is_broken(struct uhci_hcd *uhci)
 {
 	int port;
 	const char *sys_info;
@@ -261,27 +261,60 @@ __releases(uhci->lock)
 __acquires(uhci->lock)
 {
 	int auto_stop;
-	int int_enable, egsm_enable;
+	int int_enable, egsm_enable, wakeup_enable;
 	struct usb_device *rhdev = uhci_to_hcd(uhci)->self.root_hub;
 
 	auto_stop = (new_state == UHCI_RH_AUTO_STOPPED);
 	dev_dbg(&rhdev->dev, "%s%s\n", __func__,
 			(auto_stop ? " (auto-stop)" : ""));
 
-	/* Enable resume-detect interrupts if they work.
-	 * Then enter Global Suspend mode if _it_ works, still configured.
+	/* Start off by assuming Resume-Detect interrupts and EGSM work
+	 * and that remote wakeups should be enabled.
 	 */
 	egsm_enable = USBCMD_EGSM;
-	uhci->working_RD = 1;
+	uhci->RD_enable = 1;
 	int_enable = USBINTR_RESUME;
-	if (remote_wakeup_is_broken(uhci))
-		egsm_enable = 0;
-	if (resume_detect_interrupts_are_broken(uhci) || !egsm_enable ||
+	wakeup_enable = 1;
+
+	/* In auto-stop mode wakeups must always be detected, but
+	 * Resume-Detect interrupts may be prohibited.  (In the absence
+	 * of CONFIG_PM, they are always disallowed.)
+	 */
+	if (auto_stop) {
+		if (!device_may_wakeup(&rhdev->dev))
+			int_enable = 0;
+
+	/* In bus-suspend mode wakeups may be disabled, but if they are
+	 * allowed then so are Resume-Detect interrupts.
+	 */
+	} else {
 #ifdef CONFIG_PM
-			(!auto_stop && !rhdev->do_remote_wakeup) ||
+		if (!rhdev->do_remote_wakeup)
+			wakeup_enable = 0;
 #endif
-			(auto_stop && !device_may_wakeup(&rhdev->dev)))
-		uhci->working_RD = int_enable = 0;
+	}
+
+	/* EGSM causes the root hub to echo a 'K' signal (resume) out any
+	 * port which requests a remote wakeup.  According to the USB spec,
+	 * every hub is supposed to do this.  But if we are ignoring
+	 * remote-wakeup requests anyway then there's no point to it.
+	 * We also shouldn't enable EGSM if it's broken.
+	 */
+	if (!wakeup_enable || global_suspend_mode_is_broken(uhci))
+		egsm_enable = 0;
+
+	/* If we're ignoring wakeup events then there's no reason to
+	 * enable Resume-Detect interrupts.  We also shouldn't enable
+	 * them if they are broken or disallowed.
+	 *
+	 * This logic may lead us to enabling RD but not EGSM.  The UHCI
+	 * spec foolishly says that RD works only when EGSM is on, but
+	 * there's no harm in enabling it anyway -- perhaps some chips
+	 * will implement it!
+	 */
+	if (!wakeup_enable || resume_detect_interrupts_are_broken(uhci) ||
+			!int_enable)
+		uhci->RD_enable = int_enable = 0;
 
 	outw(int_enable, uhci->io_addr + USBINTR);
 	outw(egsm_enable | USBCMD_CF, uhci->io_addr + USBCMD);
@@ -308,7 +341,11 @@ __acquires(uhci->lock)
 
 	uhci->rh_state = new_state;
 	uhci->is_stopped = UHCI_IS_STOPPED;
-	uhci_to_hcd(uhci)->poll_rh = !int_enable;
+
+	/* If interrupts don't work and remote wakeup is enabled then
+	 * the suspended root hub needs to be polled.
+	 */
+	uhci_to_hcd(uhci)->poll_rh = (!int_enable && wakeup_enable);
 
 	uhci_scan_schedule(uhci);
 	uhci_fsbr_off(uhci);
@@ -344,9 +381,12 @@ __acquires(uhci->lock)
 	 * for 20 ms.
 	 */
 	if (uhci->rh_state == UHCI_RH_SUSPENDED) {
+		unsigned egsm;
+
+		/* Keep EGSM on if it was set before */
+		egsm = inw(uhci->io_addr + USBCMD) & USBCMD_EGSM;
 		uhci->rh_state = UHCI_RH_RESUMING;
-		outw(USBCMD_FGR | USBCMD_EGSM | USBCMD_CF,
-				uhci->io_addr + USBCMD);
+		outw(USBCMD_FGR | USBCMD_CF | egsm, uhci->io_addr + USBCMD);
 		spin_unlock_irq(&uhci->lock);
 		msleep(20);
 		spin_lock_irq(&uhci->lock);
@@ -801,8 +841,10 @@ static int uhci_pci_resume(struct usb_hcd *hcd)
 
 	spin_unlock_irq(&uhci->lock);
 
-	if (!uhci->working_RD) {
-		/* Suspended root hub needs to be polled */
+	/* If interrupts don't work and remote wakeup is enabled then
+	 * the suspended root hub needs to be polled.
+	 */
+	if (!uhci->RD_enable && hcd->self.root_hub->do_remote_wakeup) {
 		hcd->poll_rh = 1;
 		usb_hcd_poll_rh_status(hcd);
 	}
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index 340d6ed3e6e..7d01c5677f9 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -400,8 +400,9 @@ struct uhci_hcd {
 	unsigned int scan_in_progress:1;	/* Schedule scan is running */
 	unsigned int need_rescan:1;		/* Redo the schedule scan */
 	unsigned int dead:1;			/* Controller has died */
-	unsigned int working_RD:1;		/* Suspended root hub doesn't
-						   need to be polled */
+	unsigned int RD_enable:1;		/* Suspended root hub with
+						   Resume-Detect interrupts
+						   enabled */
 	unsigned int is_initialized:1;		/* Data structure is usable */
 	unsigned int fsbr_is_on:1;		/* FSBR is turned on */
 	unsigned int fsbr_is_wanted:1;		/* Does any URB want FSBR? */