usb: Remove isp116x-hcd support

The isp116x-hcd driver is extremely long unused, so just remove it.

Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>

1 files changed, 0 insertions, 1323 deletions

diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c
deleted file mode 100644
index 32874d73de..0000000000
--- a/drivers/usb/host/isp116x-hcd.c
+++ /dev/null
@@ -1,1323 +0,0 @@
-/*
- * ISP116x HCD (Host Controller Driver) for u-boot.
- *
- * Copyright (C) 2006-2007 Rodolfo Giometti <giometti@linux.it>
- * Copyright (C) 2006-2007 Eurotech S.p.A. <info@eurotech.it>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- *
- * Derived in part from the SL811 HCD driver "u-boot/drivers/usb/sl811_usb.c"
- * (original copyright message follows):
- *
- *    (C) Copyright 2004
- *    Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- *    This code is based on linux driver for sl811hs chip, source at
- *    drivers/usb/host/sl811.c:
- *
- *    SL811 Host Controller Interface driver for USB.
- *
- *    Copyright (c) 2003/06, Courage Co., Ltd.
- *
- *    Based on:
- *         1.uhci.c by Linus Torvalds, Johannes Erdfelt, Randy Dunlap,
- *           Georg Acher, Deti Fliegl, Thomas Sailer, Roman Weissgaerber,
- *           Adam Richter, Gregory P. Smith;
- *         2.Original SL811 driver (hc_sl811.o) by Pei Liu <pbl@cypress.com>
- *         3.Rewrited as sl811.o by Yin Aihua <yinah:couragetech.com.cn>
- *
- *    [[GNU/GPL disclaimer]]
- *
- * and in part from AU1x00 OHCI HCD driver "u-boot/arch/mips/cpu/au1x00_usb_ohci.c"
- * (original copyright message follows):
- *
- *    URB OHCI HCD (Host Controller Driver) for USB on the AU1x00.
- *
- *    (C) Copyright 2003
- *    Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
- *
- *    [[GNU/GPL disclaimer]]
- *
- *    Note: Part of this code has been derived from linux
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <usb.h>
-#include <malloc.h>
-#include <linux/list.h>
-
-/*
- * ISP116x chips require certain delays between accesses to its
- * registers. The following timing options exist.
- *
- * 1. Configure your memory controller (the best)
- * 2. Use ndelay (easiest, poorest). For that, enable the following macro.
- *
- * Value is in microseconds.
- */
-#ifdef ISP116X_HCD_USE_UDELAY
-#define UDELAY		1
-#endif
-
-/*
- * On some (slowly?) machines an extra delay after data packing into
- * controller's FIFOs is required, * otherwise you may get the following
- * error:
- *
- *   uboot> usb start
- *   (Re)start USB...
- *   USB:   scanning bus for devices... isp116x: isp116x_submit_job: CTL:TIMEOUT
- *   isp116x: isp116x_submit_job: ****** FIFO not ready! ******
- *
- *         USB device not responding, giving up (status=4)
- *         isp116x: isp116x_submit_job: ****** FIFO not empty! ******
- *         isp116x: isp116x_submit_job: ****** FIFO not empty! ******
- *         isp116x: isp116x_submit_job: ****** FIFO not empty! ******
- *         3 USB Device(s) found
- *                scanning bus for storage devices... 0 Storage Device(s) found
- *
- * Value is in milliseconds.
- */
-#ifdef ISP116X_HCD_USE_EXTRA_DELAY
-#define EXTRA_DELAY	2
-#endif
-
-/*
- * Enable the following defines if you wish enable debugging messages.
- */
-#undef DEBUG			/* enable debugging messages */
-#undef TRACE			/* enable tracing code */
-#undef VERBOSE			/* verbose debugging messages */
-
-#include "isp116x.h"
-
-#define DRIVER_VERSION	"08 Jan 2007"
-static const char hcd_name[] = "isp116x-hcd";
-
-struct isp116x isp116x_dev;
-struct isp116x_platform_data isp116x_board;
-static int got_rhsc;		/* root hub status change */
-struct usb_device *devgone;	/* device which was disconnected */
-static int rh_devnum;		/* address of Root Hub endpoint */
-
-/* ------------------------------------------------------------------------- */
-
-static int isp116x_reset(struct isp116x *isp116x);
-
-/* --- Debugging functions ------------------------------------------------- */
-
-#define isp116x_show_reg(d, r) {				\
-	if ((r) < 0x20) {					\
-		DBG("%-12s[%02x]: %08x", #r,			\
-			r, isp116x_read_reg32(d, r));		\
-	} else {						\
-		DBG("%-12s[%02x]:     %04x", #r,		\
-			r, isp116x_read_reg16(d, r));		\
-	}							\
-}
-
-#define isp116x_show_regs(d) {					\
-	isp116x_show_reg(d, HCREVISION);			\
-	isp116x_show_reg(d, HCCONTROL);				\
-	isp116x_show_reg(d, HCCMDSTAT);				\
-	isp116x_show_reg(d, HCINTSTAT);				\
-	isp116x_show_reg(d, HCINTENB);				\
-	isp116x_show_reg(d, HCFMINTVL);				\
-	isp116x_show_reg(d, HCFMREM);				\
-	isp116x_show_reg(d, HCFMNUM);				\
-	isp116x_show_reg(d, HCLSTHRESH);			\
-	isp116x_show_reg(d, HCRHDESCA);				\
-	isp116x_show_reg(d, HCRHDESCB);				\
-	isp116x_show_reg(d, HCRHSTATUS);			\
-	isp116x_show_reg(d, HCRHPORT1);				\
-	isp116x_show_reg(d, HCRHPORT2);				\
-	isp116x_show_reg(d, HCHWCFG);				\
-	isp116x_show_reg(d, HCDMACFG);				\
-	isp116x_show_reg(d, HCXFERCTR);				\
-	isp116x_show_reg(d, HCuPINT);				\
-	isp116x_show_reg(d, HCuPINTENB);			\
-	isp116x_show_reg(d, HCCHIPID);				\
-	isp116x_show_reg(d, HCSCRATCH);				\
-	isp116x_show_reg(d, HCITLBUFLEN);			\
-	isp116x_show_reg(d, HCATLBUFLEN);			\
-	isp116x_show_reg(d, HCBUFSTAT);				\
-	isp116x_show_reg(d, HCRDITL0LEN);			\
-	isp116x_show_reg(d, HCRDITL1LEN);			\
-}
-
-#if defined(TRACE)
-
-static int isp116x_get_current_frame_number(struct usb_device *usb_dev)
-{
-	struct isp116x *isp116x = &isp116x_dev;
-
-	return isp116x_read_reg32(isp116x, HCFMNUM);
-}
-
-static void dump_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
-		     int len, char *str)
-{
-#if defined(VERBOSE)
-	int i;
-#endif
-
-	DBG("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,len:%d stat:%#lx",
-	    str,
-	    isp116x_get_current_frame_number(dev),
-	    usb_pipedevice(pipe),
-	    usb_pipeendpoint(pipe),
-	    usb_pipeout(pipe) ? 'O' : 'I',
-	    usb_pipetype(pipe) < 2 ?
-	    (usb_pipeint(pipe) ?
-	     "INTR" : "ISOC") :
-	    (usb_pipecontrol(pipe) ? "CTRL" : "BULK"), len, dev->status);
-#if defined(VERBOSE)
-	if (len > 0 && buffer) {
-		printf(__FILE__ ": data(%d):", len);
-		for (i = 0; i < 16 && i < len; i++)
-			printf(" %02x", ((__u8 *) buffer)[i]);
-		printf("%s\n", i < len ? "..." : "");
-	}
-#endif
-}
-
-#define PTD_DIR_STR(ptd)  ({char __c;		\
-	switch(PTD_GET_DIR(ptd)){		\
-	case 0:  __c = 's'; break;		\
-	case 1:  __c = 'o'; break;		\
-	default: __c = 'i'; break;		\
-	}; __c;})
-
-/*
-  Dump PTD info. The code documents the format
-  perfectly, right :)
-*/
-static inline void dump_ptd(struct ptd *ptd)
-{
-#if defined(VERBOSE)
-	int k;
-#endif
-
-	DBG("PTD(ext) : cc:%x %d%c%d %d,%d,%d t:%x %x%x%x",
-	    PTD_GET_CC(ptd),
-	    PTD_GET_FA(ptd), PTD_DIR_STR(ptd), PTD_GET_EP(ptd),
-	    PTD_GET_COUNT(ptd), PTD_GET_LEN(ptd), PTD_GET_MPS(ptd),
-	    PTD_GET_TOGGLE(ptd),
-	    PTD_GET_ACTIVE(ptd), PTD_GET_SPD(ptd), PTD_GET_LAST(ptd));
-#if defined(VERBOSE)
-	printf("isp116x: %s: PTD(byte): ", __FUNCTION__);
-	for (k = 0; k < sizeof(struct ptd); ++k)
-		printf("%02x ", ((u8 *) ptd)[k]);
-	printf("\n");
-#endif
-}
-
-static inline void dump_ptd_data(struct ptd *ptd, u8 * buf, int type)
-{
-#if defined(VERBOSE)
-	int k;
-
-	if (type == 0 /* 0ut data */ ) {
-		printf("isp116x: %s: out data: ", __FUNCTION__);
-		for (k = 0; k < PTD_GET_LEN(ptd); ++k)
-			printf("%02x ", ((u8 *) buf)[k]);
-		printf("\n");
-	}
-	if (type == 1 /* 1n data */ ) {
-		printf("isp116x: %s: in data: ", __FUNCTION__);
-		for (k = 0; k < PTD_GET_COUNT(ptd); ++k)
-			printf("%02x ", ((u8 *) buf)[k]);
-		printf("\n");
-	}
-
-	if (PTD_GET_LAST(ptd))
-		DBG("--- last PTD ---");
-#endif
-}
-
-#else
-
-#define dump_msg(dev, pipe, buffer, len, str)			do { } while (0)
-#define dump_pkt(dev, pipe, buffer, len, setup, str, small)	do {} while (0)
-
-#define dump_ptd(ptd)			do {} while (0)
-#define dump_ptd_data(ptd, buf, type)	do {} while (0)
-
-#endif
-
-/* --- Virtual Root Hub ---------------------------------------------------- */
-
-#include <usbroothubdes.h>
-
-/*
- * Hub class-specific descriptor is constructed dynamically
- */
-
-/* --- Virtual root hub management functions ------------------------------- */
-
-static int rh_check_port_status(struct isp116x *isp116x)
-{
-	u32 temp, ndp, i;
-	int res;
-
-	res = -1;
-	temp = isp116x_read_reg32(isp116x, HCRHSTATUS);
-	ndp = (temp & RH_A_NDP);
-	for (i = 0; i < ndp; i++) {
-		temp = isp116x_read_reg32(isp116x, HCRHPORT1 + i);
-		/* check for a device disconnect */
-		if (((temp & (RH_PS_PESC | RH_PS_CSC)) ==
-		     (RH_PS_PESC | RH_PS_CSC)) && ((temp & RH_PS_CCS) == 0)) {
-			res = i;
-			break;
-		}
-	}
-	return res;
-}
-
-/* --- HC management functions --------------------------------------------- */
-
-/* Write len bytes to fifo, pad till 32-bit boundary
- */
-static void write_ptddata_to_fifo(struct isp116x *isp116x, void *buf, int len)
-{
-	u8 *dp = (u8 *) buf;
-	u16 *dp2 = (u16 *) buf;
-	u16 w;
-	int quot = len % 4;
-
-	if ((unsigned long)dp2 & 1) {
-		/* not aligned */
-		for (; len > 1; len -= 2) {
-			w = *dp++;
-			w |= *dp++ << 8;
-			isp116x_raw_write_data16(isp116x, w);
-		}
-		if (len)
-			isp116x_write_data16(isp116x, (u16) * dp);
-	} else {
-		/* aligned */
-		for (; len > 1; len -= 2)
-			isp116x_raw_write_data16(isp116x, *dp2++);
-		if (len)
-			isp116x_write_data16(isp116x, 0xff & *((u8 *) dp2));
-	}
-	if (quot == 1 || quot == 2)
-		isp116x_raw_write_data16(isp116x, 0);
-}
-
-/* Read len bytes from fifo and then read till 32-bit boundary
- */
-static void read_ptddata_from_fifo(struct isp116x *isp116x, void *buf, int len)
-{
-	u8 *dp = (u8 *) buf;
-	u16 *dp2 = (u16 *) buf;
-	u16 w;
-	int quot = len % 4;
-
-	if ((unsigned long)dp2 & 1) {
-		/* not aligned */
-		for (; len > 1; len -= 2) {
-			w = isp116x_raw_read_data16(isp116x);
-			*dp++ = w & 0xff;
-			*dp++ = (w >> 8) & 0xff;
-		}
-		if (len)
-			*dp = 0xff & isp116x_read_data16(isp116x);
-	} else {
-		/* aligned */
-		for (; len > 1; len -= 2)
-			*dp2++ = isp116x_raw_read_data16(isp116x);
-		if (len)
-			*(u8 *) dp2 = 0xff & isp116x_read_data16(isp116x);
-	}
-	if (quot == 1 || quot == 2)
-		isp116x_raw_read_data16(isp116x);
-}
-
-/* Write PTD's and data for scheduled transfers into the fifo ram.
- * Fifo must be empty and ready */
-static void pack_fifo(struct isp116x *isp116x, struct usb_device *dev,
-		      unsigned long pipe, struct ptd *ptd, int n, void *data,
-		      int len)
-{
-	int buflen = n * sizeof(struct ptd) + len;
-	int i, done;
-
-	DBG("--- pack buffer %p - %d bytes (fifo %d) ---", data, len, buflen);
-
-	isp116x_write_reg16(isp116x, HCuPINT, HCuPINT_AIIEOT);
-	isp116x_write_reg16(isp116x, HCXFERCTR, buflen);
-	isp116x_write_addr(isp116x, HCATLPORT | ISP116x_WRITE_OFFSET);
-
-	done = 0;
-	for (i = 0; i < n; i++) {
-		DBG("i=%d - done=%d - len=%d", i, done, PTD_GET_LEN(&ptd[i]));
-
-		dump_ptd(&ptd[i]);
-		isp116x_write_data16(isp116x, ptd[i].count);
-		isp116x_write_data16(isp116x, ptd[i].mps);
-		isp116x_write_data16(isp116x, ptd[i].len);
-		isp116x_write_data16(isp116x, ptd[i].faddr);
-
-		dump_ptd_data(&ptd[i], (__u8 *) data + done, 0);
-		write_ptddata_to_fifo(isp116x,
-				      (__u8 *) data + done,
-				      PTD_GET_LEN(&ptd[i]));
-
-		done += PTD_GET_LEN(&ptd[i]);
-	}
-}
-
-/* Read the processed PTD's and data from fifo ram back to URBs' buffers.
- * Fifo must be full and done */
-static int unpack_fifo(struct isp116x *isp116x, struct usb_device *dev,
-		       unsigned long pipe, struct ptd *ptd, int n, void *data,
-		       int len)
-{
-	int buflen = n * sizeof(struct ptd) + len;
-	int i, done, cc, ret;
-
-	isp116x_write_reg16(isp116x, HCuPINT, HCuPINT_AIIEOT);
-	isp116x_write_reg16(isp116x, HCXFERCTR, buflen);
-	isp116x_write_addr(isp116x, HCATLPORT);
-
-	ret = TD_CC_NOERROR;
-	done = 0;
-	for (i = 0; i < n; i++) {
-		DBG("i=%d - done=%d - len=%d", i, done, PTD_GET_LEN(&ptd[i]));
-
-		ptd[i].count = isp116x_read_data16(isp116x);
-		ptd[i].mps = isp116x_read_data16(isp116x);
-		ptd[i].len = isp116x_read_data16(isp116x);
-		ptd[i].faddr = isp116x_read_data16(isp116x);
-		dump_ptd(&ptd[i]);
-
-		read_ptddata_from_fifo(isp116x,
-				       (__u8 *) data + done,
-				       PTD_GET_LEN(&ptd[i]));
-		dump_ptd_data(&ptd[i], (__u8 *) data + done, 1);
-
-		done += PTD_GET_LEN(&ptd[i]);
-
-		cc = PTD_GET_CC(&ptd[i]);
-
-		/* Data underrun means basically that we had more buffer space than
-		 * the function had data. It is perfectly normal but upper levels have
-		 * to know how much we actually transferred.
-		 */
-		if (cc == TD_NOTACCESSED ||
-				(cc != TD_CC_NOERROR && (ret == TD_CC_NOERROR || ret == TD_DATAUNDERRUN)))
-			ret = cc;
-	}
-
-	DBG("--- unpack buffer %p - %d bytes (fifo %d) ---", data, len, buflen);
-
-	return ret;
-}
-
-/* Interrupt handling
- */
-static int isp116x_interrupt(struct isp116x *isp116x)
-{
-	u16 irqstat;
-	u32 intstat;
-	int ret = 0;
-
-	isp116x_write_reg16(isp116x, HCuPINTENB, 0);
-	irqstat = isp116x_read_reg16(isp116x, HCuPINT);
-	isp116x_write_reg16(isp116x, HCuPINT, irqstat);
-	DBG("------ irqstat %x ------", irqstat);
-
-	if (irqstat & HCuPINT_ATL) {
-		DBG("------ HCuPINT_ATL ------");
-		udelay(500);
-		ret = 1;
-	}
-
-	if (irqstat & HCuPINT_OPR) {
-		intstat = isp116x_read_reg32(isp116x, HCINTSTAT);
-		isp116x_write_reg32(isp116x, HCINTSTAT, intstat);
-		DBG("------ HCuPINT_OPR %x ------", intstat);
-
-		if (intstat & HCINT_UE) {
-			ERR("unrecoverable error, controller disabled");
-
-			/* FIXME: be optimistic, hope that bug won't repeat
-			 * often. Make some non-interrupt context restart the
-			 * controller. Count and limit the retries though;
-			 * either hardware or software errors can go forever...
-			 */
-			isp116x_reset(isp116x);
-			ret = -1;
-			return -1;
-		}
-
-		if (intstat & HCINT_RHSC) {
-			got_rhsc = 1;
-			ret = 1;
-			/* When root hub or any of its ports is going
-			   to come out of suspend, it may take more
-			   than 10ms for status bits to stabilize. */
-			mdelay(20);
-		}
-
-		if (intstat & HCINT_SO) {
-			ERR("schedule overrun");
-			ret = -1;
-		}
-
-		irqstat &= ~HCuPINT_OPR;
-	}
-
-	return ret;
-}
-
-/* With one PTD we can transfer almost 1K in one go;
- * HC does the splitting into endpoint digestible transactions
- */
-struct ptd ptd[1];
-
-static inline int max_transfer_len(struct usb_device *dev, unsigned long pipe)
-{
-	unsigned mpck = usb_maxpacket(dev, pipe);
-
-	/* One PTD can transfer 1023 bytes but try to always
-	 * transfer multiples of endpoint buffer size
-	 */
-	return 1023 / mpck * mpck;
-}
-
-/* Do an USB transfer
- */
-static int isp116x_submit_job(struct usb_device *dev, unsigned long pipe,
-			      int dir, void *buffer, int len)
-{
-	struct isp116x *isp116x = &isp116x_dev;
-	int type = usb_pipetype(pipe);
-	int epnum = usb_pipeendpoint(pipe);
-	int max = usb_maxpacket(dev, pipe);
-	int dir_out = usb_pipeout(pipe);
-	int speed_low = (dev->speed == USB_SPEED_LOW);
-	int i, done = 0, stat, timeout, cc;
-
-	/* 500 frames or 0.5s timeout when function is busy and NAKs transactions for a while */
-	int retries = 500;
-
-	DBG("------------------------------------------------");
-	dump_msg(dev, pipe, buffer, len, "SUBMIT");
-	DBG("------------------------------------------------");
-
-	if (len >= 1024) {
-		ERR("Too big job");
-		dev->status = USB_ST_CRC_ERR;
-		return -1;
-	}
-
-	if (isp116x->disabled) {
-		ERR("EPIPE");
-		dev->status = USB_ST_CRC_ERR;
-		return -1;
-	}
-
-	/* device pulled? Shortcut the action. */
-	if (devgone == dev) {
-		ERR("ENODEV");
-		dev->status = USB_ST_CRC_ERR;
-		return USB_ST_CRC_ERR;
-	}
-
-	if (!max) {
-		ERR("pipesize for pipe %lx is zero", pipe);
-		dev->status = USB_ST_CRC_ERR;
-		return -1;
-	}
-
-	if (type == PIPE_ISOCHRONOUS) {
-		ERR("isochronous transfers not supported");
-		dev->status = USB_ST_CRC_ERR;
-		return -1;
-	}
-
-	/* FIFO not empty? */
-	if (isp116x_read_reg16(isp116x, HCBUFSTAT) & HCBUFSTAT_ATL_FULL) {
-		ERR("****** FIFO not empty! ******");
-		dev->status = USB_ST_BUF_ERR;
-		return -1;
-	}
-
-      retry:
-	isp116x_write_reg32(isp116x, HCINTSTAT, 0xff);
-
-	/* Prepare the PTD data */
-	ptd->count = PTD_CC_MSK | PTD_ACTIVE_MSK |
-		PTD_TOGGLE(usb_gettoggle(dev, epnum, dir_out));
-	ptd->mps = PTD_MPS(max) | PTD_SPD(speed_low) | PTD_EP(epnum) | PTD_LAST_MSK;
-	ptd->len = PTD_LEN(len) | PTD_DIR(dir);
-	ptd->faddr = PTD_FA(usb_pipedevice(pipe));
-
-retry_same:
-	/* Pack data into FIFO ram */
-	pack_fifo(isp116x, dev, pipe, ptd, 1, buffer, len);
-#ifdef EXTRA_DELAY
-	mdelay(EXTRA_DELAY);
-#endif
-
-	/* Start the data transfer */
-
-	/* Allow more time for a BULK device to react - some are slow */
-	if (usb_pipebulk(pipe))
-		timeout = 5000;
-	else
-		timeout = 100;
-
-	/* Wait for it to complete */
-	for (;;) {
-		/* Check whether the controller is done */
-		stat = isp116x_interrupt(isp116x);
-
-		if (stat < 0) {
-			dev->status = USB_ST_CRC_ERR;
-			break;
-		}
-		if (stat > 0)
-			break;
-
-		/* Check the timeout */
-		if (--timeout)
-			udelay(1);
-		else {
-			ERR("CTL:TIMEOUT ");
-			stat = USB_ST_CRC_ERR;
-			break;
-		}
-	}
-
-	/* We got an Root Hub Status Change interrupt */
-	if (got_rhsc) {
-		isp116x_show_regs(isp116x);
-
-		got_rhsc = 0;
-
-		/* Abuse timeout */
-		timeout = rh_check_port_status(isp116x);
-		if (timeout >= 0) {
-			/*
-			 * FIXME! NOTE! AAAARGH!
-			 * This is potentially dangerous because it assumes
-			 * that only one device is ever plugged in!
-			 */
-			devgone = dev;
-		}
-	}
-
-	/* Ok, now we can read transfer status */
-
-	/* FIFO not ready? */
-	if (!(isp116x_read_reg16(isp116x, HCBUFSTAT) & HCBUFSTAT_ATL_DONE)) {
-		ERR("****** FIFO not ready! ******");
-		dev->status = USB_ST_BUF_ERR;
-		return -1;
-	}
-
-	/* Unpack data from FIFO ram */
-	cc = unpack_fifo(isp116x, dev, pipe, ptd, 1, buffer, len);
-
-	i = PTD_GET_COUNT(ptd);
-	done += i;
-	buffer += i;
-	len -= i;
-
-	/* There was some kind of real problem; Prepare the PTD again
-	 * and retry from the failed transaction on
-	 */
-	if (cc && cc != TD_NOTACCESSED && cc != TD_DATAUNDERRUN) {
-		if (retries >= 100) {
-			retries -= 100;
-			/* The chip will have toggled the toggle bit for the failed
-			 * transaction too. We have to toggle it back.
-			 */
-			usb_settoggle(dev, epnum, dir_out, !PTD_GET_TOGGLE(ptd));
-			goto retry;
-		}
-	}
-	/* "Normal" errors; TD_NOTACCESSED would mean in effect that the function have NAKed
-	 * the transactions from the first on for the whole frame. It may be busy and we retry
-	 * with the same PTD. PTD_ACTIVE (and not TD_NOTACCESSED) would mean that some of the
-	 * PTD didn't make it because the function was busy or the frame ended before the PTD
-	 * finished. We prepare the rest of the data and try again.
-	 */
-	else if (cc == TD_NOTACCESSED || PTD_GET_ACTIVE(ptd) || (cc != TD_DATAUNDERRUN && PTD_GET_COUNT(ptd) < PTD_GET_LEN(ptd))) {
-		if (retries) {
-			--retries;
-			if (cc == TD_NOTACCESSED && PTD_GET_ACTIVE(ptd) && !PTD_GET_COUNT(ptd)) goto retry_same;
-			usb_settoggle(dev, epnum, dir_out, PTD_GET_TOGGLE(ptd));
-			goto retry;
-		}
-	}
-
-	if (cc != TD_CC_NOERROR && cc != TD_DATAUNDERRUN) {
-		DBG("****** completition code error %x ******", cc);
-		switch (cc) {
-		case TD_CC_BITSTUFFING:
-			dev->status = USB_ST_BIT_ERR;
-			break;
-		case TD_CC_STALL:
-			dev->status = USB_ST_STALLED;
-			break;
-		case TD_BUFFEROVERRUN:
-		case TD_BUFFERUNDERRUN:
-			dev->status = USB_ST_BUF_ERR;
-			break;
-		default:
-			dev->status = USB_ST_CRC_ERR;
-		}
-		return -cc;
-	}
-	else usb_settoggle(dev, epnum, dir_out, PTD_GET_TOGGLE(ptd));
-
-	dump_msg(dev, pipe, buffer, len, "SUBMIT(ret)");
-
-	dev->status = 0;
-	return done;
-}
-
-/* Adapted from au1x00_usb_ohci.c
- */
-static int isp116x_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
-				 void *buffer, int transfer_len,
-				 struct devrequest *cmd)
-{
-	struct isp116x *isp116x = &isp116x_dev;
-	u32 tmp = 0;
-
-	int leni = transfer_len;
-	int len = 0;
-	int stat = 0;
-	u32 datab[4];
-	u8 *data_buf = (u8 *) datab;
-	u16 bmRType_bReq;
-	u16 wValue;
-	u16 wIndex;
-	u16 wLength;
-
-	if (usb_pipeint(pipe)) {
-		INFO("Root-Hub submit IRQ: NOT implemented");
-		return 0;
-	}
-
-	bmRType_bReq = cmd->requesttype | (cmd->request << 8);
-	wValue = swap_16(cmd->value);
-	wIndex = swap_16(cmd->index);
-	wLength = swap_16(cmd->length);
-
-	DBG("--- HUB ----------------------------------------");
-	DBG("submit rh urb, req=%x val=%#x index=%#x len=%d",
-	    bmRType_bReq, wValue, wIndex, wLength);
-	dump_msg(dev, pipe, buffer, transfer_len, "RH");
-	DBG("------------------------------------------------");
-
-	switch (bmRType_bReq) {
-	case RH_GET_STATUS:
-		DBG("RH_GET_STATUS");
-
-		*(__u16 *) data_buf = swap_16(1);
-		len = 2;
-		break;
-
-	case RH_GET_STATUS | RH_INTERFACE:
-		DBG("RH_GET_STATUS | RH_INTERFACE");
-
-		*(__u16 *) data_buf = swap_16(0);
-		len = 2;
-		break;
-
-	case RH_GET_STATUS | RH_ENDPOINT:
-		DBG("RH_GET_STATUS | RH_ENDPOINT");
-
-		*(__u16 *) data_buf = swap_16(0);
-		len = 2;
-		break;
-
-	case RH_GET_STATUS | RH_CLASS:
-		DBG("RH_GET_STATUS | RH_CLASS");
-
-		tmp = isp116x_read_reg32(isp116x, HCRHSTATUS);
-
-		*(__u32 *) data_buf = swap_32(tmp & ~(RH_HS_CRWE | RH_HS_DRWE));
-		len = 4;
-		break;
-
-	case RH_GET_STATUS | RH_OTHER | RH_CLASS:
-		DBG("RH_GET_STATUS | RH_OTHER | RH_CLASS");
-
-		tmp = isp116x_read_reg32(isp116x, HCRHPORT1 + wIndex - 1);
-		*(__u32 *) data_buf = swap_32(tmp);
-		isp116x_show_regs(isp116x);
-		len = 4;
-		break;
-
-	case RH_CLEAR_FEATURE | RH_ENDPOINT:
-		DBG("RH_CLEAR_FEATURE | RH_ENDPOINT");
-
-		switch (wValue) {
-		case RH_ENDPOINT_STALL:
-			DBG("C_HUB_ENDPOINT_STALL");
-			len = 0;
-			break;
-		}
-		break;
-
-	case RH_CLEAR_FEATURE | RH_CLASS:
-		DBG("RH_CLEAR_FEATURE | RH_CLASS");
-
-		switch (wValue) {
-		case RH_C_HUB_LOCAL_POWER:
-			DBG("C_HUB_LOCAL_POWER");
-			len = 0;
-			break;
-
-		case RH_C_HUB_OVER_CURRENT:
-			DBG("C_HUB_OVER_CURRENT");
-			isp116x_write_reg32(isp116x, HCRHSTATUS, RH_HS_OCIC);
-			len = 0;
-			break;
-		}
-		break;
-
-	case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
-		DBG("RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS");
-
-		switch (wValue) {
-		case RH_PORT_ENABLE:
-			isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
-					    RH_PS_CCS);
-			len = 0;
-			break;
-
-		case RH_PORT_SUSPEND:
-			isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
-					    RH_PS_POCI);
-			len = 0;
-			break;
-
-		case RH_PORT_POWER:
-			isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
-					    RH_PS_LSDA);
-			len = 0;
-			break;
-
-		case RH_C_PORT_CONNECTION:
-			isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
-					    RH_PS_CSC);
-			len = 0;
-			break;
-
-		case RH_C_PORT_ENABLE:
-			isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
-					    RH_PS_PESC);
-			len = 0;
-			break;
-
-		case RH_C_PORT_SUSPEND:
-			isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
-					    RH_PS_PSSC);
-			len = 0;
-			break;
-
-		case RH_C_PORT_OVER_CURRENT:
-			isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
-					    RH_PS_POCI);
-			len = 0;
-			break;
-
-		case RH_C_PORT_RESET:
-			isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
-					    RH_PS_PRSC);
-			len = 0;
-			break;
-
-		default:
-			ERR("invalid wValue");
-			stat = USB_ST_STALLED;
-		}
-
-		isp116x_show_regs(isp116x);
-
-		break;
-
-	case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
-		DBG("RH_SET_FEATURE | RH_OTHER | RH_CLASS");
-
-		switch (wValue) {
-		case RH_PORT_SUSPEND:
-			isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
-					    RH_PS_PSS);
-			len = 0;
-			break;
-
-		case RH_PORT_RESET:
-			/* Spin until any current reset finishes */
-			while (1) {
-				tmp =
-				    isp116x_read_reg32(isp116x,
-						       HCRHPORT1 + wIndex - 1);
-				if (!(tmp & RH_PS_PRS))
-					break;
-				mdelay(1);
-			}
-			isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
-					    RH_PS_PRS);
-			mdelay(10);
-
-			len = 0;
-			break;
-
-		case RH_PORT_POWER:
-			isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
-					    RH_PS_PPS);
-			len = 0;
-			break;
-
-		case RH_PORT_ENABLE:
-			isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
-					    RH_PS_PES);
-			len = 0;
-			break;
-
-		default:
-			ERR("invalid wValue");
-			stat = USB_ST_STALLED;
-		}
-
-		isp116x_show_regs(isp116x);
-
-		break;
-
-	case RH_SET_ADDRESS:
-		DBG("RH_SET_ADDRESS");
-
-		rh_devnum = wValue;
-		len = 0;
-		break;
-
-	case RH_GET_DESCRIPTOR:
-		DBG("RH_GET_DESCRIPTOR: %x, %d", wValue, wLength);
-
-		switch (wValue) {
-		case (USB_DT_DEVICE << 8):	/* device descriptor */
-			len = min_t(unsigned int,
-				    leni, min_t(unsigned int,
-						sizeof(root_hub_dev_des),
-						wLength));
-			data_buf = root_hub_dev_des;
-			break;
-
-		case (USB_DT_CONFIG << 8):	/* configuration descriptor */
-			len = min_t(unsigned int,
-				    leni, min_t(unsigned int,
-						sizeof(root_hub_config_des),
-						wLength));
-			data_buf = root_hub_config_des;
-			break;
-
-		case ((USB_DT_STRING << 8) | 0x00):	/* string 0 descriptors */
-			len = min_t(unsigned int,
-				    leni, min_t(unsigned int,
-						sizeof(root_hub_str_index0),
-						wLength));
-			data_buf = root_hub_str_index0;
-			break;
-
-		case ((USB_DT_STRING << 8) | 0x01):	/* string 1 descriptors */
-			len = min_t(unsigned int,
-				    leni, min_t(unsigned int,
-						sizeof(root_hub_str_index1),
-						wLength));
-			data_buf = root_hub_str_index1;
-			break;
-
-		default:
-			ERR("invalid wValue");
-			stat = USB_ST_STALLED;
-		}
-
-		break;
-
-	case RH_GET_DESCRIPTOR | RH_CLASS:
-		DBG("RH_GET_DESCRIPTOR | RH_CLASS");
-
-		tmp = isp116x_read_reg32(isp116x, HCRHDESCA);
-
-		data_buf[0] = 0x09;	/* min length; */
-		data_buf[1] = 0x29;
-		data_buf[2] = tmp & RH_A_NDP;
-		data_buf[3] = 0;
-		if (tmp & RH_A_PSM)	/* per-port power switching? */
-			data_buf[3] |= 0x01;
-		if (tmp & RH_A_NOCP)	/* no overcurrent reporting? */
-			data_buf[3] |= 0x10;
-		else if (tmp & RH_A_OCPM)	/* per-port overcurrent rep? */
-			data_buf[3] |= 0x08;
-
-		/* Corresponds to data_buf[4-7] */
-		datab[1] = 0;
-		data_buf[5] = (tmp & RH_A_POTPGT) >> 24;
-
-		tmp = isp116x_read_reg32(isp116x, HCRHDESCB);
-
-		data_buf[7] = tmp & RH_B_DR;
-		if (data_buf[2] < 7)
-			data_buf[8] = 0xff;
-		else {
-			data_buf[0] += 2;
-			data_buf[8] = (tmp & RH_B_DR) >> 8;
-			data_buf[10] = data_buf[9] = 0xff;
-		}
-
-		len = min_t(unsigned int, leni,
-			    min_t(unsigned int, data_buf[0], wLength));
-		break;
-
-	case RH_GET_CONFIGURATION:
-		DBG("RH_GET_CONFIGURATION");
-
-		*(__u8 *) data_buf = 0x01;
-		len = 1;
-		break;
-
-	case RH_SET_CONFIGURATION:
-		DBG("RH_SET_CONFIGURATION");
-
-		isp116x_write_reg32(isp116x, HCRHSTATUS, RH_HS_LPSC);
-		len = 0;
-		break;
-
-	default:
-		ERR("*** *** *** unsupported root hub command *** *** ***");
-		stat = USB_ST_STALLED;
-	}
-
-	len = min_t(int, len, leni);
-	if (buffer != data_buf)
-		memcpy(buffer, data_buf, len);
-
-	dev->act_len = len;
-	dev->status = stat;
-	DBG("dev act_len %d, status %d", dev->act_len, dev->status);
-
-	dump_msg(dev, pipe, buffer, transfer_len, "RH(ret)");
-
-	return stat;
-}
-
-/* --- Transfer functions -------------------------------------------------- */
-
-int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
-		   int len, int interval)
-{
-	DBG("dev=%p pipe=%#lx buf=%p size=%d int=%d",
-	    dev, pipe, buffer, len, interval);
-
-	return -1;
-}
-
-int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
-		       int len, struct devrequest *setup)
-{
-	int devnum = usb_pipedevice(pipe);
-	int epnum = usb_pipeendpoint(pipe);
-	int max = max_transfer_len(dev, pipe);
-	int dir_in = usb_pipein(pipe);
-	int done, ret;
-
-	/* Control message is for the HUB? */
-	if (devnum == rh_devnum)
-		return isp116x_submit_rh_msg(dev, pipe, buffer, len, setup);
-
-	/* Ok, no HUB message so send the message to the device */
-
-	/* Setup phase */
-	DBG("--- SETUP PHASE --------------------------------");
-	usb_settoggle(dev, epnum, 1, 0);
-	ret = isp116x_submit_job(dev, pipe,
-				 PTD_DIR_SETUP,
-				 setup, sizeof(struct devrequest));
-	if (ret < 0) {
-		DBG("control setup phase error (ret = %d", ret);
-		return -1;
-	}
-
-	/* Data phase */
-	DBG("--- DATA PHASE ---------------------------------");
-	done = 0;
-	usb_settoggle(dev, epnum, !dir_in, 1);
-	while (done < len) {
-		ret = isp116x_submit_job(dev, pipe,
-					 dir_in ? PTD_DIR_IN : PTD_DIR_OUT,
-					 (__u8 *) buffer + done,
-					 max > len - done ? len - done : max);
-		if (ret < 0) {
-			DBG("control data phase error (ret = %d)", ret);
-			return -1;
-		}
-		done += ret;
-
-		if (dir_in && ret < max)	/* short packet */
-			break;
-	}
-
-	/* Status phase */
-	DBG("--- STATUS PHASE -------------------------------");
-	usb_settoggle(dev, epnum, !dir_in, 1);
-	ret = isp116x_submit_job(dev, pipe,
-				 !dir_in ? PTD_DIR_IN : PTD_DIR_OUT, NULL, 0);
-	if (ret < 0) {
-		DBG("control status phase error (ret = %d", ret);
-		return -1;
-	}
-
-	dev->act_len = done;
-
-	dump_msg(dev, pipe, buffer, len, "DEV(ret)");
-
-	return done;
-}
-
-int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
-		    int len)
-{
-	int dir_out = usb_pipeout(pipe);
-	int max = max_transfer_len(dev, pipe);
-	int done, ret;
-
-	DBG("--- BULK ---------------------------------------");
-	DBG("dev=%ld pipe=%ld buf=%p size=%d dir_out=%d",
-	    usb_pipedevice(pipe), usb_pipeendpoint(pipe), buffer, len, dir_out);
-
-	done = 0;
-	while (done < len) {
-		ret = isp116x_submit_job(dev, pipe,
-					 !dir_out ? PTD_DIR_IN : PTD_DIR_OUT,
-					 (__u8 *) buffer + done,
-					 max > len - done ? len - done : max);
-		if (ret < 0) {
-			DBG("error on bulk message (ret = %d)", ret);
-			return -1;
-		}
-
-		done += ret;
-
-		if (!dir_out && ret < max)	/* short packet */
-			break;
-	}
-
-	dev->act_len = done;
-
-	return 0;
-}
-
-/* --- Basic functions ----------------------------------------------------- */
-
-static int isp116x_sw_reset(struct isp116x *isp116x)
-{
-	int retries = 15;
-	int ret = 0;
-
-	DBG("");
-
-	isp116x->disabled = 1;
-
-	isp116x_write_reg16(isp116x, HCSWRES, HCSWRES_MAGIC);
-	isp116x_write_reg32(isp116x, HCCMDSTAT, HCCMDSTAT_HCR);
-	while (--retries) {
-		/* It usually resets within 1 ms */
-		mdelay(1);
-		if (!(isp116x_read_reg32(isp116x, HCCMDSTAT) & HCCMDSTAT_HCR))
-			break;
-	}
-	if (!retries) {
-		ERR("software reset timeout");
-		ret = -1;
-	}
-	return ret;
-}
-
-static int isp116x_reset(struct isp116x *isp116x)
-{
-	unsigned long t;
-	u16 clkrdy = 0;
-	int ret, timeout = 15 /* ms */ ;
-
-	DBG("");
-
-	ret = isp116x_sw_reset(isp116x);
-	if (ret)
-		return ret;
-
-	for (t = 0; t < timeout; t++) {
-		clkrdy = isp116x_read_reg16(isp116x, HCuPINT) & HCuPINT_CLKRDY;
-		if (clkrdy)
-			break;
-		mdelay(1);
-	}
-	if (!clkrdy) {
-		ERR("clock not ready after %dms", timeout);
-		/* After sw_reset the clock won't report to be ready, if
-		   H_WAKEUP pin is high. */
-		ERR("please make sure that the H_WAKEUP pin is pulled low!");
-		ret = -1;
-	}
-	return ret;
-}
-
-static void isp116x_stop(struct isp116x *isp116x)
-{
-	u32 val;
-
-	DBG("");
-
-	isp116x_write_reg16(isp116x, HCuPINTENB, 0);
-
-	/* Switch off ports' power, some devices don't come up
-	   after next 'start' without this */
-	val = isp116x_read_reg32(isp116x, HCRHDESCA);
-	val &= ~(RH_A_NPS | RH_A_PSM);
-	isp116x_write_reg32(isp116x, HCRHDESCA, val);
-	isp116x_write_reg32(isp116x, HCRHSTATUS, RH_HS_LPS);
-
-	isp116x_sw_reset(isp116x);
-}
-
-/*
- *  Configure the chip. The chip must be successfully reset by now.
- */
-static int isp116x_start(struct isp116x *isp116x)
-{
-	struct isp116x_platform_data *board = isp116x->board;
-	u32 val;
-
-	DBG("");
-
-	/* Clear interrupt status and disable all interrupt sources */
-	isp116x_write_reg16(isp116x, HCuPINT, 0xff);
-	isp116x_write_reg16(isp116x, HCuPINTENB, 0);
-
-	isp116x_write_reg16(isp116x, HCITLBUFLEN, ISP116x_ITL_BUFSIZE);
-	isp116x_write_reg16(isp116x, HCATLBUFLEN, ISP116x_ATL_BUFSIZE);
-
-	/* Hardware configuration */
-	val = HCHWCFG_DBWIDTH(1);
-	if (board->sel15Kres)
-		val |= HCHWCFG_15KRSEL;
-	/* Remote wakeup won't work without working clock */
-	if (board->remote_wakeup_enable)
-		val |= HCHWCFG_CLKNOTSTOP;
-	if (board->oc_enable)
-		val |= HCHWCFG_ANALOG_OC;
-	isp116x_write_reg16(isp116x, HCHWCFG, val);
-
-	/* --- Root hub configuration */
-	val = (25 << 24) & RH_A_POTPGT;
-	/* AN10003_1.pdf recommends RH_A_NPS (no power switching) to
-	   be always set. Yet, instead, we request individual port
-	   power switching. */
-	val |= RH_A_PSM;
-	/* Report overcurrent per port */
-	val |= RH_A_OCPM;
-	isp116x_write_reg32(isp116x, HCRHDESCA, val);
-	isp116x->rhdesca = isp116x_read_reg32(isp116x, HCRHDESCA);
-
-	val = RH_B_PPCM;
-	isp116x_write_reg32(isp116x, HCRHDESCB, val);
-	isp116x->rhdescb = isp116x_read_reg32(isp116x, HCRHDESCB);
-
-	val = 0;
-	if (board->remote_wakeup_enable)
-		val |= RH_HS_DRWE;
-	isp116x_write_reg32(isp116x, HCRHSTATUS, val);
-	isp116x->rhstatus = isp116x_read_reg32(isp116x, HCRHSTATUS);
-
-	isp116x_write_reg32(isp116x, HCFMINTVL, 0x27782edf);
-
-	/* Go operational */
-	val = HCCONTROL_USB_OPER;
-	if (board->remote_wakeup_enable)
-		val |= HCCONTROL_RWE;
-	isp116x_write_reg32(isp116x, HCCONTROL, val);
-
-	/* Disable ports to avoid race in device enumeration */
-	isp116x_write_reg32(isp116x, HCRHPORT1, RH_PS_CCS);
-	isp116x_write_reg32(isp116x, HCRHPORT2, RH_PS_CCS);
-
-	isp116x_show_regs(isp116x);
-
-	isp116x->disabled = 0;
-
-	return 0;
-}
-
-/* --- Init functions ------------------------------------------------------ */
-
-int isp116x_check_id(struct isp116x *isp116x)
-{
-	int val;
-
-	val = isp116x_read_reg16(isp116x, HCCHIPID);
-	if ((val & HCCHIPID_MASK) != HCCHIPID_MAGIC) {
-		ERR("invalid chip ID %04x", val);
-		return -1;
-	}
-
-	return 0;
-}
-
-int usb_lowlevel_init(int index, enum usb_init_type init, void **controller))
-{
-	struct isp116x *isp116x = &isp116x_dev;
-
-	DBG("");
-
-	got_rhsc = rh_devnum = 0;
-
-	/* Init device registers addr */
-	isp116x->addr_reg = (u16 *) ISP116X_HCD_ADDR;
-	isp116x->data_reg = (u16 *) ISP116X_HCD_DATA;
-
-	/* Setup specific board settings */
-#ifdef ISP116X_HCD_SEL15kRES
-	isp116x_board.sel15Kres = 1;
-#endif
-#ifdef ISP116X_HCD_OC_ENABLE
-	isp116x_board.oc_enable = 1;
-#endif
-#ifdef ISP116X_HCD_REMOTE_WAKEUP_ENABLE
-	isp116x_board.remote_wakeup_enable = 1;
-#endif
-	isp116x->board = &isp116x_board;
-
-	/* Try to get ISP116x silicon chip ID */
-	if (isp116x_check_id(isp116x) < 0)
-		return -1;
-
-	isp116x->disabled = 1;
-	isp116x->sleeping = 0;
-
-	isp116x_reset(isp116x);
-	isp116x_start(isp116x);
-
-	return 0;
-}
-
-int usb_lowlevel_stop(int index)
-{
-	struct isp116x *isp116x = &isp116x_dev;
-
-	DBG("");
-
-	if (!isp116x->disabled)
-		isp116x_stop(isp116x);
-
-	return 0;
-}