Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 1430 insertions, 0 deletions

diff --git a/roms/u-boot-sam460ex/common/usb_storage.c b/roms/u-boot-sam460ex/common/usb_storage.c
new file mode 100644
index 000000000..4b420cc26
--- /dev/null
+++ b/roms/u-boot-sam460ex/common/usb_storage.c
@@ -0,0 +1,1430 @@
+/*
+ * Most of this source has been derived from the Linux USB
+ * project:
+ *   (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
+ *   (c) 2000 David L. Brown, Jr. (usb-storage@davidb.org)
+ *   (c) 1999 Michael Gee (michael@linuxspecific.com)
+ *   (c) 2000 Yggdrasil Computing, Inc.
+ *
+ *
+ * Adapted for U-Boot:
+ *   (C) Copyright 2001 Denis Peter, MPL AG Switzerland
+ *
+ * For BBB support (C) Copyright 2003
+ * Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
+ *
+ * BBB support based on /sys/dev/usb/umass.c from
+ * FreeBSD.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+/* Note:
+ * Currently only the CBI transport protocoll has been implemented, and it
+ * is only tested with a TEAC USB Floppy. Other Massstorages with CBI or CB
+ * transport protocoll may work as well.
+ */
+/*
+ * New Note:
+ * Support for USB Mass Storage Devices (BBB) has been added. It has
+ * only been tested with USB memory sticks.
+ */
+
+
+#include <common.h>
+#include <command.h>
+#include <asm/byteorder.h>
+#include <asm/processor.h>
+
+#include <part.h>
+#include <usb.h>
+
+#undef USB_STOR_DEBUG
+#undef BBB_COMDAT_TRACE
+#undef BBB_XPORT_TRACE
+
+#ifdef	USB_STOR_DEBUG
+#define USB_STOR_PRINTF(fmt, args...)	printf(fmt , ##args)
+#else
+#define USB_STOR_PRINTF(fmt, args...)
+#endif
+
+#include <scsi.h>
+/* direction table -- this indicates the direction of the data
+ * transfer for each command code -- a 1 indicates input
+ */
+unsigned char us_direction[256/8] = {
+	0x28, 0x81, 0x14, 0x14, 0x20, 0x01, 0x90, 0x77,
+	0x0C, 0x20, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+#define US_DIRECTION(x) ((us_direction[x>>3] >> (x & 7)) & 1)
+
+static unsigned char usb_stor_buf[512];
+static ccb usb_ccb;
+
+/*
+ * CBI style
+ */
+
+#define US_CBI_ADSC		0
+
+/*
+ * BULK only
+ */
+#define US_BBB_RESET		0xff
+#define US_BBB_GET_MAX_LUN	0xfe
+
+/* Command Block Wrapper */
+typedef struct {
+	__u32		dCBWSignature;
+#	define CBWSIGNATURE	0x43425355
+	__u32		dCBWTag;
+	__u32		dCBWDataTransferLength;
+	__u8		bCBWFlags;
+#	define CBWFLAGS_OUT	0x00
+#	define CBWFLAGS_IN	0x80
+	__u8		bCBWLUN;
+	__u8		bCDBLength;
+#	define CBWCDBLENGTH	16
+	__u8		CBWCDB[CBWCDBLENGTH];
+} umass_bbb_cbw_t;
+#define UMASS_BBB_CBW_SIZE	31
+static __u32 CBWTag;
+
+/* Command Status Wrapper */
+typedef struct {
+	__u32		dCSWSignature;
+#	define CSWSIGNATURE	0x53425355
+	__u32		dCSWTag;
+	__u32		dCSWDataResidue;
+	__u8		bCSWStatus;
+#	define CSWSTATUS_GOOD	0x0
+#	define CSWSTATUS_FAILED 0x1
+#	define CSWSTATUS_PHASE	0x2
+} umass_bbb_csw_t;
+#define UMASS_BBB_CSW_SIZE	13
+
+#define USB_MAX_STOR_DEV 5
+static int usb_max_devs; /* number of highest available usb device */
+
+static block_dev_desc_t usb_dev_desc[USB_MAX_STOR_DEV];
+
+struct us_data;
+typedef int (*trans_cmnd)(ccb *cb, struct us_data *data);
+typedef int (*trans_reset)(struct us_data *data);
+
+struct us_data {
+	struct usb_device *pusb_dev;	 /* this usb_device */
+
+	unsigned int	flags;			/* from filter initially */
+	unsigned char	ifnum;			/* interface number */
+	unsigned char	ep_in;			/* in endpoint */
+	unsigned char	ep_out;			/* out ....... */
+	unsigned char	ep_int;			/* interrupt . */
+	unsigned char	subclass;		/* as in overview */
+	unsigned char	protocol;		/* .............. */
+	unsigned char	attention_done;		/* force attn on first cmd */
+	unsigned short	ip_data;		/* interrupt data */
+	int		action;			/* what to do */
+	int		ip_wanted;		/* needed */
+	int		*irq_handle;		/* for USB int requests */
+	unsigned int	irqpipe;	 	/* pipe for release_irq */
+	unsigned char	irqmaxp;		/* max packed for irq Pipe */
+	unsigned char	irqinterval;		/* Intervall for IRQ Pipe */
+	ccb		*srb;			/* current srb */
+	trans_reset	transport_reset;	/* reset routine */
+	trans_cmnd	transport;		/* transport routine */
+};
+
+static struct us_data usb_stor[USB_MAX_STOR_DEV];
+
+
+#define USB_STOR_TRANSPORT_GOOD	   0
+#define USB_STOR_TRANSPORT_FAILED -1
+#define USB_STOR_TRANSPORT_ERROR  -2
+
+int usb_stor_get_info(struct usb_device *dev, struct us_data *us,
+		      block_dev_desc_t *dev_desc);
+int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
+		      struct us_data *ss);
+unsigned long usb_stor_read(int device, unsigned long blknr,
+			    unsigned long blkcnt, void *buffer);
+unsigned long usb_stor_write(int device, unsigned long blknr,
+			     unsigned long blkcnt, const void *buffer);
+struct usb_device * usb_get_dev_index(int index);
+void uhci_show_temp_int_td(void);
+
+block_dev_desc_t *usb_stor_get_dev(int index)
+{
+	return (index < usb_max_devs) ? &usb_dev_desc[index] : NULL;
+}
+
+
+void usb_show_progress(void)
+{
+#ifndef CONFIG_SAM4XX
+	printf(".");
+#endif
+}
+
+/*******************************************************************************
+ * show info on storage devices; 'usb start/init' must be invoked earlier
+ * as we only retrieve structures populated during devices initialization
+ */
+int usb_stor_info(void)
+{
+	int i;
+
+	if (usb_max_devs > 0) {
+		for (i = 0; i < usb_max_devs; i++) {
+			printf("  Device %d: ", i);
+			dev_print(&usb_dev_desc[i]);
+		}
+		return 0;
+	}
+
+	printf("No storage devices, perhaps not 'usb start'ed..?\n");
+	return 1;
+}
+
+/*******************************************************************************
+ * scan the usb and reports device info
+ * to the user if mode = 1
+ * returns current device or -1 if no
+ */
+int usb_stor_scan(int mode)
+{
+	unsigned char i;
+	struct usb_device *dev;
+
+	/* GJ */
+	memset(usb_stor_buf, 0, sizeof(usb_stor_buf));
+
+	if (mode == 1)
+		printf("       scanning bus for storage devices... ");
+
+	usb_disable_asynch(1); /* asynch transfer not allowed */
+
+	for (i = 0; i < USB_MAX_STOR_DEV; i++) {
+		memset(&usb_dev_desc[i], 0, sizeof(block_dev_desc_t));
+		usb_dev_desc[i].target = 0xff;
+		usb_dev_desc[i].if_type = IF_TYPE_USB;
+		usb_dev_desc[i].dev = i;
+		usb_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
+		usb_dev_desc[i].block_read = usb_stor_read;
+		usb_dev_desc[i].block_write = usb_stor_write;
+	}
+
+	usb_max_devs = 0;
+	for (i = 0; i < USB_MAX_DEVICE; i++) {
+		dev = usb_get_dev_index(i); /* get device */
+		USB_STOR_PRINTF("i=%d\n", i);
+		if (dev == NULL)
+			break; /* no more devices avaiable */
+
+		if (usb_storage_probe(dev, 0, &usb_stor[usb_max_devs])) {
+			/* ok, it is a storage devices
+			 * get info and fill it in
+			 */
+			if (usb_stor_get_info(dev, &usb_stor[usb_max_devs],
+						&usb_dev_desc[usb_max_devs]) == 1)
+				usb_max_devs++;
+		}
+		/* if storage device */
+		if (usb_max_devs == USB_MAX_STOR_DEV) {
+			printf("max USB Storage Device reached: %d stopping\n",
+				usb_max_devs);
+			break;
+		}
+	} /* for */
+
+	usb_disable_asynch(0); /* asynch transfer allowed */
+	printf("%d Storage Device(s) found\n", usb_max_devs);
+	if (usb_max_devs > 0)
+		return 0;
+	return -1;
+}
+
+static int usb_stor_irq(struct usb_device *dev)
+{
+	struct us_data *us;
+	us = (struct us_data *)dev->privptr;
+
+	if (us->ip_wanted)
+		us->ip_wanted = 0;
+	return 0;
+}
+
+
+#ifdef	USB_STOR_DEBUG
+
+static void usb_show_srb(ccb *pccb)
+{
+	int i;
+	printf("SRB: len %d datalen 0x%lX\n ", pccb->cmdlen, pccb->datalen);
+	for (i = 0; i < 12; i++)
+		printf("%02X ", pccb->cmd[i]);
+	printf("\n");
+}
+
+static void display_int_status(unsigned long tmp)
+{
+	printf("Status: %s %s %s %s %s %s %s\n",
+		(tmp & USB_ST_ACTIVE) ? "Active" : "",
+		(tmp & USB_ST_STALLED) ? "Stalled" : "",
+		(tmp & USB_ST_BUF_ERR) ? "Buffer Error" : "",
+		(tmp & USB_ST_BABBLE_DET) ? "Babble Det" : "",
+		(tmp & USB_ST_NAK_REC) ? "NAKed" : "",
+		(tmp & USB_ST_CRC_ERR) ? "CRC Error" : "",
+		(tmp & USB_ST_BIT_ERR) ? "Bitstuff Error" : "");
+}
+#endif
+/***********************************************************************
+ * Data transfer routines
+ ***********************************************************************/
+
+static int us_one_transfer(struct us_data *us, int pipe, char *buf, int length)
+{
+	int max_size;
+	int this_xfer;
+	int result;
+	int partial;
+	int maxtry;
+	int stat;
+
+	/* determine the maximum packet size for these transfers */
+	max_size = usb_maxpacket(us->pusb_dev, pipe) * 16;
+
+	/* while we have data left to transfer */
+	while (length) {
+
+		/* calculate how long this will be -- maximum or a remainder */
+		this_xfer = length > max_size ? max_size : length;
+		length -= this_xfer;
+
+		/* setup the retry counter */
+		maxtry = 10;
+
+		/* set up the transfer loop */
+		do {
+			/* transfer the data */
+			USB_STOR_PRINTF("Bulk xfer 0x%x(%d) try #%d\n",
+				  (unsigned int)buf, this_xfer, 11 - maxtry);
+			result = usb_bulk_msg(us->pusb_dev, pipe, buf,
+					      this_xfer, &partial,
+					      USB_CNTL_TIMEOUT * 5);
+			USB_STOR_PRINTF("bulk_msg returned %d xferred %d/%d\n",
+				  result, partial, this_xfer);
+			if (us->pusb_dev->status != 0) {
+				/* if we stall, we need to clear it before
+				 * we go on
+				 */
+#ifdef USB_STOR_DEBUG
+				display_int_status(us->pusb_dev->status);
+#endif
+				if (us->pusb_dev->status & USB_ST_STALLED) {
+					USB_STOR_PRINTF("stalled ->clearing endpoint halt for pipe 0x%x\n", pipe);
+					stat = us->pusb_dev->status;
+					usb_clear_halt(us->pusb_dev, pipe);
+					us->pusb_dev->status = stat;
+					if (this_xfer == partial) {
+						USB_STOR_PRINTF("bulk transferred with error %X, but data ok\n", us->pusb_dev->status);
+						return 0;
+					}
+					else
+						return result;
+				}
+				if (us->pusb_dev->status & USB_ST_NAK_REC) {
+					USB_STOR_PRINTF("Device NAKed bulk_msg\n");
+					return result;
+				}
+				USB_STOR_PRINTF("bulk transferred with error");
+				if (this_xfer == partial) {
+					USB_STOR_PRINTF(" %d, but data ok\n",
+							us->pusb_dev->status);
+					return 0;
+				}
+				/* if our try counter reaches 0, bail out */
+					USB_STOR_PRINTF(" %d, data %d\n",
+						us->pusb_dev->status, partial);
+				if (!maxtry--)
+						return result;
+			}
+			/* update to show what data was transferred */
+			this_xfer -= partial;
+			buf += partial;
+			/* continue until this transfer is done */
+		} while (this_xfer);
+	}
+
+	/* if we get here, we're done and successful */
+	return 0;
+}
+
+static int usb_stor_BBB_reset(struct us_data *us)
+{
+	int result;
+	unsigned int pipe;
+
+	/*
+	 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
+	 *
+	 * For Reset Recovery the host shall issue in the following order:
+	 * a) a Bulk-Only Mass Storage Reset
+	 * b) a Clear Feature HALT to the Bulk-In endpoint
+	 * c) a Clear Feature HALT to the Bulk-Out endpoint
+	 *
+	 * This is done in 3 steps.
+	 *
+	 * If the reset doesn't succeed, the device should be port reset.
+	 *
+	 * This comment stolen from FreeBSD's /sys/dev/usb/umass.c.
+	 */
+	USB_STOR_PRINTF("BBB_reset\n");
+	result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
+				 US_BBB_RESET,
+				 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+				 0, us->ifnum, 0, 0, USB_CNTL_TIMEOUT * 5);
+
+	if ((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) {
+		USB_STOR_PRINTF("RESET:stall\n");
+		return -1;
+	}
+
+	/* long wait for reset */
+	wait_ms(150);
+	USB_STOR_PRINTF("BBB_reset result %d: status %X reset\n", result,
+			us->pusb_dev->status);
+	pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
+	result = usb_clear_halt(us->pusb_dev, pipe);
+	/* long wait for reset */
+	wait_ms(150);
+	USB_STOR_PRINTF("BBB_reset result %d: status %X clearing IN endpoint\n",
+			result, us->pusb_dev->status);
+	/* long wait for reset */
+	pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
+	result = usb_clear_halt(us->pusb_dev, pipe);
+	wait_ms(150);
+	USB_STOR_PRINTF("BBB_reset result %d: status %X"
+			" clearing OUT endpoint\n", result,
+			us->pusb_dev->status);
+	USB_STOR_PRINTF("BBB_reset done\n");
+	return 0;
+}
+
+/* FIXME: this reset function doesn't really reset the port, and it
+ * should. Actually it should probably do what it's doing here, and
+ * reset the port physically
+ */
+static int usb_stor_CB_reset(struct us_data *us)
+{
+	unsigned char cmd[12];
+	int result;
+
+	USB_STOR_PRINTF("CB_reset\n");
+	memset(cmd, 0xff, sizeof(cmd));
+	cmd[0] = SCSI_SEND_DIAG;
+	cmd[1] = 4;
+	result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
+				 US_CBI_ADSC,
+				 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+				 0, us->ifnum, cmd, sizeof(cmd),
+				 USB_CNTL_TIMEOUT * 5);
+
+	/* long wait for reset */
+	wait_ms(1500);
+	USB_STOR_PRINTF("CB_reset result %d: status %X"
+			" clearing endpoint halt\n", result,
+			us->pusb_dev->status);
+	usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_in));
+	usb_clear_halt(us->pusb_dev, usb_rcvbulkpipe(us->pusb_dev, us->ep_out));
+
+	USB_STOR_PRINTF("CB_reset done\n");
+	return 0;
+}
+
+/*
+ * Set up the command for a BBB device. Note that the actual SCSI
+ * command is copied into cbw.CBWCDB.
+ */
+int usb_stor_BBB_comdat(ccb *srb, struct us_data *us)
+{
+	int result;
+	int actlen;
+	int dir_in;
+	unsigned int pipe;
+	umass_bbb_cbw_t cbw;
+
+	dir_in = US_DIRECTION(srb->cmd[0]);
+
+#ifdef BBB_COMDAT_TRACE
+	printf("dir %d lun %d cmdlen %d cmd %p datalen %d pdata %p\n",
+		dir_in, srb->lun, srb->cmdlen, srb->cmd, srb->datalen,
+		srb->pdata);
+	if (srb->cmdlen) {
+		for (result = 0; result < srb->cmdlen; result++)
+			printf("cmd[%d] %#x ", result, srb->cmd[result]);
+		printf("\n");
+	}
+#endif
+	/* sanity checks */
+	if (!(srb->cmdlen <= CBWCDBLENGTH)) {
+		USB_STOR_PRINTF("usb_stor_BBB_comdat:cmdlen too large\n");
+		return -1;
+	}
+
+	/* always OUT to the ep */
+	pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
+
+	cbw.dCBWSignature = cpu_to_le32(CBWSIGNATURE);
+	cbw.dCBWTag = cpu_to_le32(CBWTag++);
+	cbw.dCBWDataTransferLength = cpu_to_le32(srb->datalen);
+	cbw.bCBWFlags = (dir_in ? CBWFLAGS_IN : CBWFLAGS_OUT);
+	cbw.bCBWLUN = srb->lun;
+	cbw.bCDBLength = srb->cmdlen;
+	/* copy the command data into the CBW command data buffer */
+	/* DST SRC LEN!!! */
+	memcpy(cbw.CBWCDB, srb->cmd, srb->cmdlen);
+	result = usb_bulk_msg(us->pusb_dev, pipe, &cbw, UMASS_BBB_CBW_SIZE,
+			      &actlen, USB_CNTL_TIMEOUT * 5);
+	if (result < 0)
+		USB_STOR_PRINTF("usb_stor_BBB_comdat:usb_bulk_msg error\n");
+	return result;
+}
+
+/* FIXME: we also need a CBI_command which sets up the completion
+ * interrupt, and waits for it
+ */
+int usb_stor_CB_comdat(ccb *srb, struct us_data *us)
+{
+	int result = 0;
+	int dir_in, retry;
+	unsigned int pipe;
+	unsigned long status;
+
+	retry = 5;
+	dir_in = US_DIRECTION(srb->cmd[0]);
+
+	if (dir_in)
+		pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
+	else
+		pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
+
+	while (retry--) {
+		USB_STOR_PRINTF("CBI gets a command: Try %d\n", 5 - retry);
+#ifdef USB_STOR_DEBUG
+		usb_show_srb(srb);
+#endif
+		/* let's send the command via the control pipe */
+		result = usb_control_msg(us->pusb_dev,
+					 usb_sndctrlpipe(us->pusb_dev , 0),
+					 US_CBI_ADSC,
+					 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+					 0, us->ifnum,
+					 srb->cmd, srb->cmdlen,
+					 USB_CNTL_TIMEOUT * 5);
+		USB_STOR_PRINTF("CB_transport: control msg returned %d,"
+				" status %X\n", result, us->pusb_dev->status);
+		/* check the return code for the command */
+		if (result < 0) {
+			if (us->pusb_dev->status & USB_ST_STALLED) {
+				status = us->pusb_dev->status;
+				USB_STOR_PRINTF(" stall during command found,"
+						" clear pipe\n");
+				usb_clear_halt(us->pusb_dev,
+					      usb_sndctrlpipe(us->pusb_dev, 0));
+				us->pusb_dev->status = status;
+			}
+			USB_STOR_PRINTF(" error during command %02X"
+					" Stat = %X\n", srb->cmd[0],
+					us->pusb_dev->status);
+			return result;
+		}
+		/* transfer the data payload for this command, if one exists*/
+
+		USB_STOR_PRINTF("CB_transport: control msg returned %d,"
+				" direction is %s to go 0x%lx\n", result,
+				dir_in ? "IN" : "OUT", srb->datalen);
+		if (srb->datalen) {
+			result = us_one_transfer(us, pipe, (char *)srb->pdata,
+						 srb->datalen);
+			USB_STOR_PRINTF("CBI attempted to transfer data,"
+					" result is %d status %lX, len %d\n",
+					result, us->pusb_dev->status,
+					us->pusb_dev->act_len);
+			if (!(us->pusb_dev->status & USB_ST_NAK_REC))
+				break;
+		} /* if (srb->datalen) */
+		else
+			break;
+	}
+	/* return result */
+
+	return result;
+}
+
+
+int usb_stor_CBI_get_status(ccb *srb, struct us_data *us)
+{
+	int timeout;
+
+	us->ip_wanted = 1;
+	submit_int_msg(us->pusb_dev, us->irqpipe,
+			(void *) &us->ip_data, us->irqmaxp, us->irqinterval);
+	timeout = 1000;
+	while (timeout--) {
+		if ((volatile int *) us->ip_wanted == 0)
+			break;
+		wait_ms(10);
+	}
+	if (us->ip_wanted) {
+		printf("	Did not get interrupt on CBI\n");
+		us->ip_wanted = 0;
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+	USB_STOR_PRINTF
+		("Got interrupt data 0x%x, transfered %d status 0x%lX\n",
+		 us->ip_data, us->pusb_dev->irq_act_len,
+		 us->pusb_dev->irq_status);
+	/* UFI gives us ASC and ASCQ, like a request sense */
+	if (us->subclass == US_SC_UFI) {
+		if (srb->cmd[0] == SCSI_REQ_SENSE ||
+		    srb->cmd[0] == SCSI_INQUIRY)
+			return USB_STOR_TRANSPORT_GOOD; /* Good */
+		else if (us->ip_data)
+			return USB_STOR_TRANSPORT_FAILED;
+		else
+			return USB_STOR_TRANSPORT_GOOD;
+	}
+	/* otherwise, we interpret the data normally */
+	switch (us->ip_data) {
+	case 0x0001:
+		return USB_STOR_TRANSPORT_GOOD;
+	case 0x0002:
+		return USB_STOR_TRANSPORT_FAILED;
+	default:
+		return USB_STOR_TRANSPORT_ERROR;
+	}			/* switch */
+	return USB_STOR_TRANSPORT_ERROR;
+}
+
+#define USB_TRANSPORT_UNKNOWN_RETRY 5
+#define USB_TRANSPORT_NOT_READY_RETRY 10
+
+/* clear a stall on an endpoint - special for BBB devices */
+int usb_stor_BBB_clear_endpt_stall(struct us_data *us, __u8 endpt)
+{
+	int result;
+
+	/* ENDPOINT_HALT = 0, so set value to 0 */
+	result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
+				USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT,
+				0, endpt, 0, 0, USB_CNTL_TIMEOUT * 5);
+	return result;
+}
+
+int usb_stor_BBB_transport(ccb *srb, struct us_data *us)
+{
+	int result, retry;
+	int dir_in;
+	int actlen, data_actlen;
+	unsigned int pipe, pipein, pipeout;
+	umass_bbb_csw_t csw;
+#ifdef BBB_XPORT_TRACE
+	unsigned char *ptr;
+	int index;
+#endif
+
+	dir_in = US_DIRECTION(srb->cmd[0]);
+
+	/* COMMAND phase */
+	USB_STOR_PRINTF("COMMAND phase\n");
+	result = usb_stor_BBB_comdat(srb, us);
+	if (result < 0) {
+		USB_STOR_PRINTF("failed to send CBW status %ld\n",
+			us->pusb_dev->status);
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	}
+	wait_ms(5);
+	pipein = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
+	pipeout = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
+	/* DATA phase + error handling */
+	data_actlen = 0;
+	/* no data, go immediately to the STATUS phase */
+	if (srb->datalen == 0)
+		goto st;
+	USB_STOR_PRINTF("DATA phase\n");
+	if (dir_in)
+		pipe = pipein;
+	else
+		pipe = pipeout;
+	result = usb_bulk_msg(us->pusb_dev, pipe, srb->pdata, srb->datalen,
+			      &data_actlen, USB_CNTL_TIMEOUT * 5);
+	/* special handling of STALL in DATA phase */
+	if ((result < 0) &&
+	    (us->pusb_dev->status & (USB_ST_STALLED | USB_ST_CRC_ERR))) {
+		USB_STOR_PRINTF("DATA:stall\n");
+		/* clear the STALL on the endpoint */
+		result = usb_stor_BBB_clear_endpt_stall(us,
+					dir_in ? us->ep_in : us->ep_out);
+		if (result >= 0)
+			/* continue on to STATUS phase */
+			goto st;
+	}
+	if (result < 0) {
+		USB_STOR_PRINTF("usb_bulk_msg error status %ld\n",
+			us->pusb_dev->status);
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	}
+#ifdef BBB_XPORT_TRACE
+	for (index = 0; index < data_actlen; index++)
+		printf("pdata[%d] %#x ", index, srb->pdata[index]);
+	printf("\n");
+#endif
+	/* STATUS phase + error handling */
+st:
+	retry = 0;
+again:
+	USB_STOR_PRINTF("STATUS phase\n");
+	result = usb_bulk_msg(us->pusb_dev, pipein, &csw, UMASS_BBB_CSW_SIZE,
+				&actlen, USB_CNTL_TIMEOUT*5);
+
+	/* special handling of STALL in STATUS phase */
+	if ((result < 0) && (retry < 1) &&
+	    (us->pusb_dev->status & (USB_ST_STALLED | USB_ST_CRC_ERR))) {
+		USB_STOR_PRINTF("STATUS:stall\n");
+		/* clear the STALL on the endpoint */
+		result = usb_stor_BBB_clear_endpt_stall(us, us->ep_in);
+		if (result >= 0 && (retry++ < 1))
+			/* do a retry */
+			goto again;
+	}
+	if (result < 0) {
+		USB_STOR_PRINTF("usb_bulk_msg error status %ld\n",
+			us->pusb_dev->status);
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	}
+#ifdef BBB_XPORT_TRACE
+	ptr = (unsigned char *)&csw;
+	for (index = 0; index < UMASS_BBB_CSW_SIZE; index++)
+		printf("ptr[%d] %#x ", index, ptr[index]);
+	printf("\n");
+#endif
+	/* misuse pipe to get the residue */
+	pipe = le32_to_cpu(csw.dCSWDataResidue);
+	if (pipe == 0 && srb->datalen != 0 && srb->datalen - data_actlen != 0)
+		pipe = srb->datalen - data_actlen;
+	if (CSWSIGNATURE != le32_to_cpu(csw.dCSWSignature)) {
+		USB_STOR_PRINTF("!CSWSIGNATURE\n");
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	} else if ((CBWTag - 1) != le32_to_cpu(csw.dCSWTag)) {
+		USB_STOR_PRINTF("!Tag\n");
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	} else if (csw.bCSWStatus > CSWSTATUS_PHASE) {
+		USB_STOR_PRINTF(">PHASE\n");
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	} else if (csw.bCSWStatus == CSWSTATUS_PHASE) {
+		USB_STOR_PRINTF("=PHASE\n");
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	} else if (data_actlen > srb->datalen) {
+		USB_STOR_PRINTF("transferred %dB instead of %dB\n",
+			data_actlen, srb->datalen);
+		return USB_STOR_TRANSPORT_FAILED;
+	} else if (csw.bCSWStatus == CSWSTATUS_FAILED) {
+		USB_STOR_PRINTF("FAILED\n");
+		return USB_STOR_TRANSPORT_FAILED;
+	}
+
+	return result;
+}
+
+int usb_stor_CB_transport(ccb *srb, struct us_data *us)
+{
+	int result, status;
+	ccb *psrb;
+	ccb reqsrb;
+	int retry, notready;
+
+	psrb = &reqsrb;
+	status = USB_STOR_TRANSPORT_GOOD;
+	retry = 0;
+	notready = 0;
+	/* issue the command */
+do_retry:
+	result = usb_stor_CB_comdat(srb, us);
+	USB_STOR_PRINTF("command / Data returned %d, status %X\n",
+			result, us->pusb_dev->status);
+	/* if this is an CBI Protocol, get IRQ */
+	if (us->protocol == US_PR_CBI) {
+		status = usb_stor_CBI_get_status(srb, us);
+		/* if the status is error, report it */
+		if (status == USB_STOR_TRANSPORT_ERROR) {
+			USB_STOR_PRINTF(" USB CBI Command Error\n");
+			return status;
+		}
+		srb->sense_buf[12] = (unsigned char)(us->ip_data >> 8);
+		srb->sense_buf[13] = (unsigned char)(us->ip_data & 0xff);
+		if (!us->ip_data) {
+			/* if the status is good, report it */
+			if (status == USB_STOR_TRANSPORT_GOOD) {
+				USB_STOR_PRINTF(" USB CBI Command Good\n");
+				return status;
+			}
+		}
+	}
+	/* do we have to issue an auto request? */
+	/* HERE we have to check the result */
+	if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) {
+		USB_STOR_PRINTF("ERROR %X\n", us->pusb_dev->status);
+		us->transport_reset(us);
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+	if ((us->protocol == US_PR_CBI) &&
+	    ((srb->cmd[0] == SCSI_REQ_SENSE) ||
+	    (srb->cmd[0] == SCSI_INQUIRY))) {
+		/* do not issue an autorequest after request sense */
+		USB_STOR_PRINTF("No auto request and good\n");
+		return USB_STOR_TRANSPORT_GOOD;
+	}
+	/* issue an request_sense */
+	memset(&psrb->cmd[0], 0, 12);
+	psrb->cmd[0] = SCSI_REQ_SENSE;
+	psrb->cmd[1] = srb->lun << 5;
+	psrb->cmd[4] = 18;
+	psrb->datalen = 18;
+	psrb->pdata = &srb->sense_buf[0];
+	psrb->cmdlen = 12;
+	/* issue the command */
+	result = usb_stor_CB_comdat(psrb, us);
+	USB_STOR_PRINTF("auto request returned %d\n", result);
+	/* if this is an CBI Protocol, get IRQ */
+	if (us->protocol == US_PR_CBI)
+		status = usb_stor_CBI_get_status(psrb, us);
+
+	if ((result < 0) && !(us->pusb_dev->status & USB_ST_STALLED)) {
+		USB_STOR_PRINTF(" AUTO REQUEST ERROR %d\n",
+				us->pusb_dev->status);
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+	USB_STOR_PRINTF("autorequest returned 0x%02X 0x%02X 0x%02X 0x%02X\n",
+			srb->sense_buf[0], srb->sense_buf[2],
+			srb->sense_buf[12], srb->sense_buf[13]);
+	/* Check the auto request result */
+	if ((srb->sense_buf[2] == 0) &&
+	    (srb->sense_buf[12] == 0) &&
+	    (srb->sense_buf[13] == 0)) {
+		/* ok, no sense */
+		return USB_STOR_TRANSPORT_GOOD;
+	}
+
+	/* Check the auto request result */
+	switch (srb->sense_buf[2]) {
+	case 0x01:
+		/* Recovered Error */
+		return USB_STOR_TRANSPORT_GOOD;
+		break;
+	case 0x02:
+		/* Not Ready */
+		if (notready++ > USB_TRANSPORT_NOT_READY_RETRY) {
+			printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
+			       " 0x%02X (NOT READY)\n", srb->cmd[0],
+				srb->sense_buf[0], srb->sense_buf[2],
+				srb->sense_buf[12], srb->sense_buf[13]);
+			return USB_STOR_TRANSPORT_FAILED;
+		} else {
+			wait_ms(100);
+			goto do_retry;
+		}
+		break;
+	default:
+		if (retry++ > USB_TRANSPORT_UNKNOWN_RETRY) {
+			printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X"
+			       " 0x%02X\n", srb->cmd[0], srb->sense_buf[0],
+				srb->sense_buf[2], srb->sense_buf[12],
+				srb->sense_buf[13]);
+			return USB_STOR_TRANSPORT_FAILED;
+		} else
+			goto do_retry;
+		break;
+	}
+	return USB_STOR_TRANSPORT_FAILED;
+}
+
+
+static int usb_inquiry(ccb *srb, struct us_data *ss)
+{
+	int retry, i;
+	retry = 5;
+	do {
+		memset(&srb->cmd[0], 0, 12);
+		srb->cmd[0] = SCSI_INQUIRY;
+		srb->cmd[4] = 36;
+		srb->datalen = 36;
+		srb->cmdlen = 12;
+		i = ss->transport(srb, ss);
+		USB_STOR_PRINTF("inquiry returns %d\n", i);
+		if (i == 0)
+			break;
+	} while (--retry);
+
+	if (!retry) {
+		printf("error in inquiry\n");
+		return -1;
+	}
+	return 0;
+}
+
+static int usb_request_sense(ccb *srb, struct us_data *ss)
+{
+	char *ptr;
+
+	ptr = (char *)srb->pdata;
+	memset(&srb->cmd[0], 0, 12);
+	srb->cmd[0] = SCSI_REQ_SENSE;
+	srb->cmd[4] = 18;
+	srb->datalen = 18;
+	srb->pdata = &srb->sense_buf[0];
+	srb->cmdlen = 12;
+	ss->transport(srb, ss);
+	USB_STOR_PRINTF("Request Sense returned %02X %02X %02X\n",
+			srb->sense_buf[2], srb->sense_buf[12],
+			srb->sense_buf[13]);
+	srb->pdata = (uchar *)ptr;
+	return 0;
+}
+
+static int usb_test_unit_ready(ccb *srb, struct us_data *ss)
+{
+	int retries = 10;
+
+	do {
+		memset(&srb->cmd[0], 0, 12);
+		srb->cmd[0] = SCSI_TST_U_RDY;
+		srb->datalen = 0;
+		srb->cmdlen = 12;
+		if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD)
+			return 0;
+		usb_request_sense(srb, ss);
+		wait_ms(100);
+	} while (retries--);
+
+	return -1;
+}
+
+static int usb_read_capacity(ccb *srb, struct us_data *ss)
+{
+	int retry;
+	/* XXX retries */
+	retry = 3;
+	do {
+		memset(&srb->cmd[0], 0, 12);
+		srb->cmd[0] = SCSI_RD_CAPAC;
+		srb->datalen = 8;
+		srb->cmdlen = 12;
+		if (ss->transport(srb, ss) == USB_STOR_TRANSPORT_GOOD)
+			return 0;
+	} while (retry--);
+
+	return -1;
+}
+
+static int usb_read_10(ccb *srb, struct us_data *ss, unsigned long start,
+		       unsigned short blocks)
+{
+	memset(&srb->cmd[0], 0, 12);
+	srb->cmd[0] = SCSI_READ10;
+	srb->cmd[2] = ((unsigned char) (start >> 24)) & 0xff;
+	srb->cmd[3] = ((unsigned char) (start >> 16)) & 0xff;
+	srb->cmd[4] = ((unsigned char) (start >> 8)) & 0xff;
+	srb->cmd[5] = ((unsigned char) (start)) & 0xff;
+	srb->cmd[7] = ((unsigned char) (blocks >> 8)) & 0xff;
+	srb->cmd[8] = (unsigned char) blocks & 0xff;
+	srb->cmdlen = 12;
+	USB_STOR_PRINTF("read10: start %lx blocks %x\n", start, blocks);
+	return ss->transport(srb, ss);
+}
+
+static int usb_write_10(ccb *srb, struct us_data *ss, unsigned long start,
+			unsigned short blocks)
+{
+	memset(&srb->cmd[0], 0, 12);
+	srb->cmd[0] = SCSI_WRITE10;
+	srb->cmd[2] = ((unsigned char) (start >> 24)) & 0xff;
+	srb->cmd[3] = ((unsigned char) (start >> 16)) & 0xff;
+	srb->cmd[4] = ((unsigned char) (start >> 8)) & 0xff;
+	srb->cmd[5] = ((unsigned char) (start)) & 0xff;
+	srb->cmd[7] = ((unsigned char) (blocks >> 8)) & 0xff;
+	srb->cmd[8] = (unsigned char) blocks & 0xff;
+	srb->cmdlen = 12;
+	USB_STOR_PRINTF("write10: start %lx blocks %x\n", start, blocks);
+	return ss->transport(srb, ss);
+}
+
+
+#ifdef CONFIG_USB_BIN_FIXUP
+/*
+ * Some USB storage devices queried for SCSI identification data respond with
+ * binary strings, which if output to the console freeze the terminal. The
+ * workaround is to modify the vendor and product strings read from such
+ * device with proper values (as reported by 'usb info').
+ *
+ * Vendor and product length limits are taken from the definition of
+ * block_dev_desc_t in include/part.h.
+ */
+static void usb_bin_fixup(struct usb_device_descriptor descriptor,
+				unsigned char vendor[],
+				unsigned char product[]) {
+	const unsigned char max_vendor_len = 40;
+	const unsigned char max_product_len = 20;
+	if (descriptor.idVendor == 0x0424 && descriptor.idProduct == 0x223a) {
+		strncpy((char *)vendor, "SMSC", max_vendor_len);
+		strncpy((char *)product, "Flash Media Cntrller",
+			max_product_len);
+	}
+}
+#endif /* CONFIG_USB_BIN_FIXUP */
+
+#define USB_MAX_READ_BLK 20
+
+unsigned long usb_stor_read(int device, unsigned long blknr,
+			    unsigned long blkcnt, void *buffer)
+{
+	unsigned long start, blks, buf_addr;
+	unsigned short smallblks;
+	struct usb_device *dev;
+	int retry, i;
+	ccb *srb = &usb_ccb;
+
+	if (blkcnt == 0)
+		return 0;
+
+	device &= 0xff;
+	/* Setup  device */
+	USB_STOR_PRINTF("\nusb_read: dev %d \n", device);
+	dev = NULL;
+	for (i = 0; i < USB_MAX_DEVICE; i++) {
+		dev = usb_get_dev_index(i);
+		if (dev == NULL)
+			return 0;
+		if (dev->devnum == usb_dev_desc[device].target)
+			break;
+	}
+
+	usb_disable_asynch(1); /* asynch transfer not allowed */
+	srb->lun = usb_dev_desc[device].lun;
+	buf_addr = (unsigned long)buffer;
+	start = blknr;
+	blks = blkcnt;
+	if (usb_test_unit_ready(srb, (struct us_data *)dev->privptr)) {
+#ifdef CONFIG_SAM4XX
+        //printf("Device NOT ready\n");
+#else 	
+		printf("Device NOT ready\n   Request Sense returned %02X %02X"
+		       " %02X\n", srb->sense_buf[2], srb->sense_buf[12],
+		       srb->sense_buf[13]);
+#endif
+		return 0;
+	}
+
+	USB_STOR_PRINTF("\nusb_read: dev %d startblk %lx, blccnt %lx"
+			" buffer %lx\n", device, start, blks, buf_addr);
+
+	do {
+		/* XXX need some comment here */
+		retry = 2;
+		srb->pdata = (unsigned char *)buf_addr;
+		if (blks > USB_MAX_READ_BLK)
+			smallblks = USB_MAX_READ_BLK;
+		else
+			smallblks = (unsigned short) blks;
+retry_it:
+		if (smallblks == USB_MAX_READ_BLK)
+			usb_show_progress();
+		srb->datalen = usb_dev_desc[device].blksz * smallblks;
+		srb->pdata = (unsigned char *)buf_addr;
+		if (usb_read_10(srb, (struct us_data *)dev->privptr, start,
+		    smallblks)) {
+			USB_STOR_PRINTF("Read ERROR\n");
+			usb_request_sense(srb, (struct us_data *)dev->privptr);
+			if (retry--)
+				goto retry_it;
+			blkcnt -= blks;
+			break;
+		}
+		start += smallblks;
+		blks -= smallblks;
+		buf_addr += srb->datalen;
+	} while (blks != 0);
+
+	USB_STOR_PRINTF("usb_read: end startblk %lx, blccnt %x buffer %lx\n",
+			start, smallblks, buf_addr);
+
+	usb_disable_asynch(0); /* asynch transfer allowed */
+#ifndef CONFIG_SAM4XX		
+	if (blkcnt >= USB_MAX_READ_BLK)
+		printf("\n");
+#endif		
+	return blkcnt;
+}
+
+#define USB_MAX_WRITE_BLK 20
+
+unsigned long usb_stor_write(int device, unsigned long blknr,
+				unsigned long blkcnt, const void *buffer)
+{
+	unsigned long start, blks, buf_addr;
+	unsigned short smallblks;
+	struct usb_device *dev;
+	int retry, i;
+	ccb *srb = &usb_ccb;
+
+	if (blkcnt == 0)
+		return 0;
+
+	device &= 0xff;
+	/* Setup  device */
+	USB_STOR_PRINTF("\nusb_write: dev %d \n", device);
+	dev = NULL;
+	for (i = 0; i < USB_MAX_DEVICE; i++) {
+		dev = usb_get_dev_index(i);
+		if (dev == NULL)
+			return 0;
+		if (dev->devnum == usb_dev_desc[device].target)
+			break;
+	}
+
+	usb_disable_asynch(1); /* asynch transfer not allowed */
+
+	srb->lun = usb_dev_desc[device].lun;
+	buf_addr = (unsigned long)buffer;
+	start = blknr;
+	blks = blkcnt;
+	if (usb_test_unit_ready(srb, (struct us_data *)dev->privptr)) {
+		printf("Device NOT ready\n   Request Sense returned %02X %02X"
+		       " %02X\n", srb->sense_buf[2], srb->sense_buf[12],
+			srb->sense_buf[13]);
+		return 0;
+	}
+
+	USB_STOR_PRINTF("\nusb_write: dev %d startblk %lx, blccnt %lx"
+			" buffer %lx\n", device, start, blks, buf_addr);
+
+	do {
+		/* If write fails retry for max retry count else
+		 * return with number of blocks written successfully.
+		 */
+		retry = 2;
+		srb->pdata = (unsigned char *)buf_addr;
+		if (blks > USB_MAX_WRITE_BLK)
+			smallblks = USB_MAX_WRITE_BLK;
+		else
+			smallblks = (unsigned short) blks;
+retry_it:
+		if (smallblks == USB_MAX_WRITE_BLK)
+			usb_show_progress();
+		srb->datalen = usb_dev_desc[device].blksz * smallblks;
+		srb->pdata = (unsigned char *)buf_addr;
+		if (usb_write_10(srb, (struct us_data *)dev->privptr, start,
+		    smallblks)) {
+			USB_STOR_PRINTF("Write ERROR\n");
+			usb_request_sense(srb, (struct us_data *)dev->privptr);
+			if (retry--)
+				goto retry_it;
+			blkcnt -= blks;
+			break;
+		}
+		start += smallblks;
+		blks -= smallblks;
+		buf_addr += srb->datalen;
+	} while (blks != 0);
+
+	USB_STOR_PRINTF("usb_write: end startblk %lx, blccnt %x buffer %lx\n",
+			start, smallblks, buf_addr);
+
+	usb_disable_asynch(0); /* asynch transfer allowed */
+	if (blkcnt >= USB_MAX_WRITE_BLK)
+		printf("\n");
+	return blkcnt;
+
+}
+
+/* Probe to see if a new device is actually a Storage device */
+int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
+		      struct us_data *ss)
+{
+	struct usb_interface *iface;
+	int i;
+	unsigned int flags = 0;
+
+	int protocol = 0;
+	int subclass = 0;
+
+	/* let's examine the device now */
+	iface = &dev->config.if_desc[ifnum];
+
+#if 0
+	/* this is the place to patch some storage devices */
+	USB_STOR_PRINTF("iVendor %X iProduct %X\n", dev->descriptor.idVendor,
+			dev->descriptor.idProduct);
+
+	if ((dev->descriptor.idVendor) == 0x066b &&
+	    (dev->descriptor.idProduct) == 0x0103) {
+		USB_STOR_PRINTF("patched for E-USB\n");
+		protocol = US_PR_CB;
+		subclass = US_SC_UFI;	    /* an assumption */
+	}
+#endif
+
+	if (dev->descriptor.bDeviceClass != 0 ||
+			iface->desc.bInterfaceClass != USB_CLASS_MASS_STORAGE ||
+			iface->desc.bInterfaceSubClass < US_SC_MIN ||
+			iface->desc.bInterfaceSubClass > US_SC_MAX) {
+		/* if it's not a mass storage, we go no further */
+		return 0;
+	}
+
+	memset(ss, 0, sizeof(struct us_data));
+
+	/* At this point, we know we've got a live one */
+	USB_STOR_PRINTF("\n\nUSB Mass Storage device detected\n");
+
+	/* Initialize the us_data structure with some useful info */
+	ss->flags = flags;
+	ss->ifnum = ifnum;
+	ss->pusb_dev = dev;
+	ss->attention_done = 0;
+
+	/* If the device has subclass and protocol, then use that.  Otherwise,
+	 * take data from the specific interface.
+	 */
+	if (subclass) {
+		ss->subclass = subclass;
+		ss->protocol = protocol;
+	} else {
+		ss->subclass = iface->desc.bInterfaceSubClass;
+		ss->protocol = iface->desc.bInterfaceProtocol;
+	}
+
+	/* set the handler pointers based on the protocol */
+	USB_STOR_PRINTF("Transport: ");
+	switch (ss->protocol) {
+	case US_PR_CB:
+		USB_STOR_PRINTF("Control/Bulk\n");
+		ss->transport = usb_stor_CB_transport;
+		ss->transport_reset = usb_stor_CB_reset;
+		break;
+
+	case US_PR_CBI:
+		USB_STOR_PRINTF("Control/Bulk/Interrupt\n");
+		ss->transport = usb_stor_CB_transport;
+		ss->transport_reset = usb_stor_CB_reset;
+		break;
+	case US_PR_BULK:
+		USB_STOR_PRINTF("Bulk/Bulk/Bulk\n");
+		ss->transport = usb_stor_BBB_transport;
+		ss->transport_reset = usb_stor_BBB_reset;
+		break;
+	default:
+		printf("USB Storage Transport unknown / not yet implemented\n");
+		return 0;
+		break;
+	}
+
+	/*
+	 * We are expecting a minimum of 2 endpoints - in and out (bulk).
+	 * An optional interrupt is OK (necessary for CBI protocol).
+	 * We will ignore any others.
+	 */
+	for (i = 0; i < iface->desc.bNumEndpoints; i++) {
+		/* is it an BULK endpoint? */
+		if ((iface->ep_desc[i].bmAttributes &
+		     USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) {
+			if (iface->ep_desc[i].bEndpointAddress & USB_DIR_IN)
+				ss->ep_in = iface->ep_desc[i].bEndpointAddress &
+					USB_ENDPOINT_NUMBER_MASK;
+			else
+				ss->ep_out =
+					iface->ep_desc[i].bEndpointAddress &
+					USB_ENDPOINT_NUMBER_MASK;
+		}
+
+		/* is it an interrupt endpoint? */
+		if ((iface->ep_desc[i].bmAttributes &
+		    USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) {
+			ss->ep_int = iface->ep_desc[i].bEndpointAddress &
+				USB_ENDPOINT_NUMBER_MASK;
+			ss->irqinterval = iface->ep_desc[i].bInterval;
+		}
+	}
+	USB_STOR_PRINTF("Endpoints In %d Out %d Int %d\n",
+		  ss->ep_in, ss->ep_out, ss->ep_int);
+
+	/* Do some basic sanity checks, and bail if we find a problem */
+	if (usb_set_interface(dev, iface->desc.bInterfaceNumber, 0) ||
+	    !ss->ep_in || !ss->ep_out ||
+	    (ss->protocol == US_PR_CBI && ss->ep_int == 0)) {
+		USB_STOR_PRINTF("Problems with device\n");
+		return 0;
+	}
+	/* set class specific stuff */
+	/* We only handle certain protocols.  Currently, these are
+	 * the only ones.
+	 * The SFF8070 accepts the requests used in u-boot
+	 */
+	if (ss->subclass != US_SC_UFI && ss->subclass != US_SC_SCSI &&
+	    ss->subclass != US_SC_8070) {
+		printf("Sorry, protocol %d not yet supported.\n", ss->subclass);
+		return 0;
+	}
+	if (ss->ep_int) {
+		/* we had found an interrupt endpoint, prepare irq pipe
+		 * set up the IRQ pipe and handler
+		 */
+		ss->irqinterval = (ss->irqinterval > 0) ? ss->irqinterval : 255;
+		ss->irqpipe = usb_rcvintpipe(ss->pusb_dev, ss->ep_int);
+		ss->irqmaxp = usb_maxpacket(dev, ss->irqpipe);
+		dev->irq_handle = usb_stor_irq;
+	}
+	dev->privptr = (void *)ss;
+	return 1;
+}
+
+int usb_stor_get_info(struct usb_device *dev, struct us_data *ss,
+		      block_dev_desc_t *dev_desc)
+{
+	unsigned char perq, modi;
+	unsigned long cap[2];
+	unsigned long *capacity, *blksz;
+	ccb *pccb = &usb_ccb;
+
+	/* for some reasons a couple of devices would not survive this reset */
+	if (
+	    /* Sony USM256E */
+	    (dev->descriptor.idVendor == 0x054c &&
+	     dev->descriptor.idProduct == 0x019e)
+	    ||
+	    /* USB007 Mini-USB2 Flash Drive */
+	    (dev->descriptor.idVendor == 0x066f &&
+	     dev->descriptor.idProduct == 0x2010)
+	    ||
+	    /* SanDisk Corporation Cruzer Micro 20044318410546613953 */
+	    (dev->descriptor.idVendor == 0x0781 &&
+	     dev->descriptor.idProduct == 0x5151)
+	    ||
+	    /*
+	     * SanDisk Corporation U3 Cruzer Micro 1/4GB
+	     * Flash Drive 000016244373FFB4
+	     */
+	    (dev->descriptor.idVendor == 0x0781 &&
+	     dev->descriptor.idProduct == 0x5406)
+	    )
+		USB_STOR_PRINTF("usb_stor_get_info: skipping RESET..\n");
+	else
+		ss->transport_reset(ss);
+
+	pccb->pdata = usb_stor_buf;
+
+	dev_desc->target = dev->devnum;
+	pccb->lun = dev_desc->lun;
+	USB_STOR_PRINTF(" address %d\n", dev_desc->target);
+
+	if (usb_inquiry(pccb, ss))
+		return -1;
+
+	perq = usb_stor_buf[0];
+	modi = usb_stor_buf[1];
+
+	if ((perq & 0x1f) == 0x1f) {
+		/* skip unknown devices */
+		return 0;
+	}
+	if ((modi&0x80) == 0x80) {
+		/* drive is removable */
+		dev_desc->removable = 1;
+	}
+	memcpy(&dev_desc->vendor[0], &usb_stor_buf[8], 8);
+	memcpy(&dev_desc->product[0], &usb_stor_buf[16], 16);
+	memcpy(&dev_desc->revision[0], &usb_stor_buf[32], 4);
+	dev_desc->vendor[8] = 0;
+	dev_desc->product[16] = 0;
+	dev_desc->revision[4] = 0;
+#ifdef CONFIG_USB_BIN_FIXUP
+	usb_bin_fixup(dev->descriptor, (uchar *)dev_desc->vendor,
+		      (uchar *)dev_desc->product);
+#endif /* CONFIG_USB_BIN_FIXUP */
+	USB_STOR_PRINTF("ISO Vers %X, Response Data %X\n", usb_stor_buf[2],
+			usb_stor_buf[3]);
+	if (usb_test_unit_ready(pccb, ss)) {
+#ifdef CONFIG_SAM4XX
+        //printf("Device NOT ready\n");
+#else
+		printf("Device NOT ready\n"
+		       "   Request Sense returned %02X %02X %02X\n",
+		       pccb->sense_buf[2], pccb->sense_buf[12],
+		       pccb->sense_buf[13]);
+#endif		       
+		if (dev_desc->removable == 1) {
+			dev_desc->type = perq;
+			return 1;
+		}
+		return 0;
+	}
+	pccb->pdata = (unsigned char *)&cap[0];
+	memset(pccb->pdata, 0, 8);
+	if (usb_read_capacity(pccb, ss) != 0) {
+		printf("READ_CAP ERROR\n");
+		cap[0] = 2880;
+		cap[1] = 0x200;
+	}
+	USB_STOR_PRINTF("Read Capacity returns: 0x%lx, 0x%lx\n", cap[0],
+			cap[1]);
+#if 0
+	if (cap[0] > (0x200000 * 10)) /* greater than 10 GByte */
+		cap[0] >>= 16;
+#endif
+	cap[0] = cpu_to_be32(cap[0]);
+	cap[1] = cpu_to_be32(cap[1]);
+
+	/* this assumes bigendian! */
+	cap[0] += 1;
+	capacity = &cap[0];
+	blksz = &cap[1];
+	USB_STOR_PRINTF("Capacity = 0x%lx, blocksz = 0x%lx\n",
+			*capacity, *blksz);
+	dev_desc->lba = *capacity;
+	dev_desc->blksz = *blksz;
+	dev_desc->type = perq;
+	USB_STOR_PRINTF(" address %d\n", dev_desc->target);
+	USB_STOR_PRINTF("partype: %d\n", dev_desc->part_type);
+
+	init_part(dev_desc);
+
+	USB_STOR_PRINTF("partype: %d\n", dev_desc->part_type);
+	return 1;
+}