rename uboot directory for more consistency

1 files changed, 2081 insertions, 0 deletions

diff --git a/packages/u-boot/u-boot-mkimage-openmoko-native/uboot-dfu.patch b/packages/u-boot/u-boot-mkimage-openmoko-native/uboot-dfu.patch
new file mode 100644
index 0000000000..1122f4894f
--- /dev/null
+++ b/packages/u-boot/u-boot-mkimage-openmoko-native/uboot-dfu.patch
@@ -0,0 +1,2081 @@
+Index: u-boot/drivers/usbdcore_ep0.c
+===================================================================
+--- u-boot.orig/drivers/usbdcore_ep0.c
++++ u-boot/drivers/usbdcore_ep0.c
+@@ -42,10 +42,15 @@
+  */
+ 
+ #include <common.h>
++DECLARE_GLOBAL_DATA_PTR;
+ 
+ #if defined(CONFIG_USB_DEVICE)
+ #include "usbdcore.h"
+ 
++#ifdef CONFIG_USBD_DFU
++#include <usb_dfu.h>
++#endif
++
+ #if 0
+ #define dbg_ep0(lvl,fmt,args...) serial_printf("[%s] %s:%d: "fmt"\n",__FILE__,__FUNCTION__,__LINE__,##args)
+ #else
+@@ -213,7 +218,7 @@
+ 			urb->buffer = device_descriptor;
+ 			urb->actual_length = MIN(sizeof(*device_descriptor), max);
+ 		}
+-		/*dbg_ep0(3, "copied device configuration, actual_length: %x", urb->actual_length); */
++		dbg_ep0(3, "using device configuration, actual_length: %x", urb->actual_length);
+ 		break;
+ 
+ 	case USB_DESCRIPTOR_TYPE_CONFIGURATION:
+@@ -267,7 +272,24 @@
+ 		return -1;
+ 	case USB_DESCRIPTOR_TYPE_ENDPOINT:
+ 		return -1;
++	/* This really means "Class Specific Descriptor #1 == USB_DT_DFU */
+ 	case USB_DESCRIPTOR_TYPE_HID:
++#ifdef CONFIG_USBD_DFU
++		{
++			int bNumInterface =
++				le16_to_cpu(urb->device_request.wIndex);
++
++			/* In runtime mode, we only respond to the DFU INTERFACE,
++			 * whereas in DFU mode, we respond for all intrfaces */
++			if (device->dfu_state != DFU_STATE_appIDLE &&
++			    device->dfu_state != DFU_STATE_appDETACH ||
++			    bNumInterface == CONFIG_USBD_DFU_INTERFACE) {
++				urb->buffer = &device->dfu_cfg_desc->func_dfu;
++				urb->actual_length = sizeof(struct usb_dfu_func_descriptor);
++			} else
++				return -1;
++		}
++#else /* CONFIG_USBD_DFU */
+ 		{
+ 			return -1;	/* unsupported at this time */
+ #if 0
+@@ -294,6 +316,7 @@
+ 				     max);
+ #endif
+ 		}
++#endif /* CONFIG_USBD_DFU */
+ 		break;
+ 	case USB_DESCRIPTOR_TYPE_REPORT:
+ 		{
+@@ -388,6 +411,24 @@
+ 		 le16_to_cpu (request->wLength),
+ 		 USBD_DEVICE_REQUESTS (request->bRequest));
+ 
++#ifdef CONFIG_USBD_DFU
++	if ((request->bmRequestType & 0x3f) == USB_TYPE_DFU &&
++	     (device->dfu_state != DFU_STATE_appIDLE ||
++	      le16_to_cpu(request->wIndex) == CONFIG_USBD_DFU_INTERFACE)) {
++		int rc = dfu_ep0_handler(urb);
++		switch (rc) {
++		case DFU_EP0_NONE:
++		case DFU_EP0_UNHANDLED:
++			break;
++		case DFU_EP0_ZLP:
++		case DFU_EP0_DATA:
++			return 0;
++		case DFU_EP0_STALL:
++			return -1;
++		}
++	}
++#endif /* CONFIG_USB_DFU */
++
+ 	/* handle USB Standard Request (c.f. USB Spec table 9-2) */
+ 	if ((request->bmRequestType & USB_REQ_TYPE_MASK) != 0) {
+ 		if (device->device_state <= STATE_CONFIGURED)
+@@ -570,7 +611,8 @@
+ 			device->interface = le16_to_cpu (request->wIndex);
+ 			device->alternate = le16_to_cpu (request->wValue);
+ 			/*dbg_ep0(2, "set interface: %d alternate: %d", device->interface, device->alternate); */
+-			serial_printf ("DEVICE_SET_INTERFACE.. event?\n");
++			usbd_device_event_irq(device, DEVICE_SET_INTERFACE,
++						(request->wIndex << 16 | request->wValue));
+ 			return 0;
+ 
+ 		case USB_REQ_GET_STATUS:
+Index: u-boot/drivers/usbdfu.c
+===================================================================
+--- /dev/null
++++ u-boot/drivers/usbdfu.c
+@@ -0,0 +1,1069 @@
++/*
++ * (C) 2007 by OpenMoko, Inc.
++ * Author: Harald Welte <laforge@openmoko.org>
++ *
++ * based on existing SAM7DFU code from OpenPCD:
++ * (C) Copyright 2006 by Harald Welte <hwelte@hmw-consulting.de>
++ *
++ * 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
++ *
++ * TODO:
++ * - make NAND support reasonably self-contained and put in apropriate
++ *   ifdefs
++ * - add some means of synchronization, i.e. block commandline access
++ *   while DFU transfer is in progress, and return to commandline once
++ *   we're finished
++ * - add VERIFY support after writing to flash
++ * - sanely free() resources allocated during first uppload/download
++ *   request when aborting
++ * - sanely free resources when another alternate interface is selected
++ *
++ * Maybe:
++ * - add something like uImage or some other header that provides CRC
++ *   checking?
++ * - make 'dnstate' attached to 'struct usb_device_instance'
++ */
++
++#include <config.h>
++#if defined(CONFIG_USBD_DFU)
++
++#include <common.h>
++DECLARE_GLOBAL_DATA_PTR;
++
++#include <malloc.h>
++#include <linux/types.h>
++#include <linux/list.h>
++#include <asm/errno.h>
++#include <usbdcore.h>
++#include <usb_dfu.h>
++#include <usb_dfu_descriptors.h>
++#include <usb_dfu_trailer.h>
++
++#include <nand.h>
++#include <jffs2/load_kernel.h>
++int mtdparts_init(void);
++extern struct list_head devices;
++
++#include "usbdcore_s3c2410.h"
++#include "usbtty.h"			/* for STR_* defs */
++
++#define RET_NOTHING	0
++#define RET_ZLP		1
++#define RET_STALL	2
++
++volatile enum dfu_state *system_dfu_state; /* for 3rd parties */
++
++
++struct dnload_state {
++	nand_info_t *nand;
++	struct part_info *part;
++	unsigned int part_net_size;	/* net sizee (excl. bad blocks) of part */
++
++	nand_erase_options_t erase_opts;
++	nand_write_options_t write_opts;
++	nand_read_options_t read_opts;
++
++	unsigned char *ptr;	/* pointer to next empty byte in buffer */
++	unsigned int off;	/* offset of current erase page in flash chip */
++	unsigned char *buf;	/* pointer to allocated erase page buffer */
++
++	/* unless doing an atomic transfer, we use the static buffer below.
++	 * This saves us from having to clean up dynamic allications in the
++	 * various error paths of the code.  Also, it will always work, no
++	 * matter what the memory situation is. */
++	unsigned char _buf[0x20000];	/* FIXME: depends flash page size */
++};
++
++static struct dnload_state _dnstate;
++
++static int dfu_trailer_matching(const struct uboot_dfu_trailer *trailer)
++{
++	if (trailer->magic != UBOOT_DFU_TRAILER_MAGIC ||
++	    trailer->version != UBOOT_DFU_TRAILER_V1 ||
++	    trailer->vendor != CONFIG_USBD_VENDORID ||
++	    (trailer->product != CONFIG_USBD_PRODUCTID_CDCACM &&
++	     trailer->product != CONFIG_USBD_PRODUCTID_GSERIAL))
++		return 0;
++#ifdef CONFIG_REVISION_TAG
++	if (trailer->revision != get_board_rev())
++		return 0;
++#endif
++
++	return 1;
++}
++
++static struct part_info *get_partition_nand(int idx)
++{
++	struct mtd_device *dev;
++	struct part_info *part;
++	struct list_head *pentry;
++	int i;
++
++	if (mtdparts_init())
++		return NULL;
++	if (list_empty(&devices))
++		return NULL;
++
++	dev = list_entry(devices.next, struct mtd_device, link);
++	i = 0;
++	list_for_each(pentry, &dev->parts) {
++		if (i == idx)  {
++			part = list_entry(pentry, struct part_info, link);
++			return part;
++		}
++		i++;
++	}
++
++	return NULL;
++}
++
++#define LOAD_ADDR ((unsigned char *)0x32000000)
++
++static int initialize_ds_nand(struct usb_device_instance *dev, struct dnload_state *ds)
++{
++	ds->part = get_partition_nand(dev->alternate - 1);
++	if (!ds->part) {
++		printf("DFU: unable to find partition %u\b", dev->alternate-1);
++   			dev->dfu_state = DFU_STATE_dfuERROR;
++		dev->dfu_status = DFU_STATUS_errADDRESS;
++		return RET_STALL;
++	}
++	ds->nand = &nand_info[ds->part->dev->id->num];
++	ds->off = ds->part->offset;
++	ds->part_net_size = nand_net_part_size(ds->part);
++
++	if (ds->nand->erasesize > sizeof(ds->_buf)) {
++		printf("*** Warning - NAND ERASESIZE bigger than static buffer\n");
++		ds->buf = malloc(ds->nand->erasesize);
++		if (!ds->buf) {
++			printf("DFU: can't allocate %u bytes\n", ds->nand->erasesize);
++   			dev->dfu_state = DFU_STATE_dfuERROR;
++			dev->dfu_status = DFU_STATUS_errADDRESS;
++			return RET_STALL;
++		}
++	} else
++		ds->buf = ds->_buf;
++
++	ds->ptr = ds->buf;
++
++	memset(&ds->read_opts, 0, sizeof(ds->read_opts));
++
++	memset(&ds->erase_opts, 0, sizeof(ds->erase_opts));
++	ds->erase_opts.quiet = 1;
++	/* FIXME: do this more dynamic */
++	if (!strcmp(ds->part->name, "rootfs"))
++		ds->erase_opts.jffs2 = 1;
++
++	memset(&ds->write_opts, 0, sizeof(ds->write_opts));
++	ds->write_opts.pad = 1;
++	ds->write_opts.blockalign = 1;
++	ds->write_opts.quiet = 1;
++
++	debug("initialize_ds_nand(dev=%p, ds=%p): ", dev, ds);
++	debug("nand=%p, ptr=%p, buf=%p, off=0x%x\n", ds->nand, ds->ptr, ds->buf, ds->off);
++
++	return RET_NOTHING;
++}
++
++static int erase_flash_verify_nand(struct urb *urb, struct dnload_state *ds,
++				   unsigned long erasesize, unsigned long size)
++{
++	struct usb_device_instance *dev = urb->device;
++	int rc;
++
++	debug("erase_flash_verify_nand(urb=%p, ds=%p, erase=0x%x size=0x%x)\n",
++		urb, ds, erasesize, size);
++
++	if (erasesize == ds->nand->erasesize) {
++		/* we're only writing a single block and need to
++		 * do bad block skipping / offset adjustments our own */
++		while (ds->nand->block_isbad(ds->nand, ds->off)) {
++			debug("SKIP_ONE_BLOCK(0x%08x)!!\n", ds->off);
++			ds->off += ds->nand->erasesize;
++		}
++	}
++
++	/* we have finished one eraseblock, flash it */
++	ds->erase_opts.offset = ds->off;
++	ds->erase_opts.length = erasesize;
++	debug("Erasing 0x%x bytes @ offset 0x%x (jffs=%u)\n",
++		ds->erase_opts.length, ds->erase_opts.offset,
++		ds->erase_opts.jffs2);
++	rc = nand_erase_opts(ds->nand, &ds->erase_opts);
++	if (rc) {
++		debug("Error erasing\n");
++	    	dev->dfu_state = DFU_STATE_dfuERROR;
++		dev->dfu_status = DFU_STATUS_errERASE;
++		return RET_STALL;
++	}
++
++	ds->write_opts.buffer = ds->buf;
++	ds->write_opts.length = size;
++	ds->write_opts.offset = ds->off;
++	debug("Writing 0x%x bytes @ offset 0x%x\n", size, ds->off);
++	rc = nand_write_opts(ds->nand, &ds->write_opts);
++	if (rc) {
++		debug("Error writing\n");
++  		dev->dfu_state = DFU_STATE_dfuERROR;
++		dev->dfu_status = DFU_STATUS_errWRITE;
++		return RET_STALL;
++	}
++
++	ds->off += size;
++	ds->ptr = ds->buf;
++
++	/* FIXME: implement verify! */
++	return RET_NOTHING;
++}
++
++static int erase_tail_clean_nand(struct urb *urb, struct dnload_state *ds)
++{
++	struct usb_device_instance *dev = urb->device;
++	int rc;
++
++	ds->erase_opts.offset = ds->off;
++	ds->erase_opts.length = ds->part->size-ds->off;
++	debug("Erasing 0x%x bytes @ offset 0x%x (jffs=%u)\n",
++		ds->erase_opts.length, ds->erase_opts.offset,
++		ds->erase_opts.jffs2);
++	rc = nand_erase_opts(ds->nand, &ds->erase_opts);
++	if (rc) {
++		debug("Error erasing\n");
++	    	dev->dfu_state = DFU_STATE_dfuERROR;
++		dev->dfu_status = DFU_STATUS_errERASE;
++		return RET_STALL;
++	}
++
++	ds->off += ds->part->size; /* for consistency */
++
++	return RET_NOTHING;
++}
++
++/* Read the next erase blcok from NAND into buffer */
++static int read_next_nand(struct urb *urb, struct dnload_state *ds)
++{
++	struct usb_device_instance *dev = urb->device;
++	int rc;
++
++	ds->read_opts.buffer = ds->buf;
++	ds->read_opts.length = ds->nand->erasesize;
++	ds->read_opts.offset = ds->off;
++	ds->read_opts.quiet = 1;
++
++	debug("Reading 0x%x@0x%x to 0x%08p\n", ds->nand->erasesize,
++		ds->off, ds->buf);
++	rc = nand_read_opts(ds->nand, &ds->read_opts);
++	if (rc) {
++		debug("Error reading\n");
++  		dev->dfu_state = DFU_STATE_dfuERROR;
++		dev->dfu_status = DFU_STATUS_errWRITE;
++		return RET_STALL;
++	}
++	ds->off += ds->nand->erasesize;
++	ds->ptr = ds->buf;
++
++	return RET_NOTHING;
++}
++
++
++static int handle_dnload(struct urb *urb, u_int16_t val, u_int16_t len, int first)
++{
++	struct usb_device_instance *dev = urb->device;
++	struct dnload_state *ds = &_dnstate;
++	unsigned int actual_len = len;
++	unsigned int remain_len;
++	unsigned long size;
++	int rc;
++
++	debug("download(len=%u, first=%u) ", len, first);
++
++	if (len > CONFIG_USBD_DFU_XFER_SIZE) {
++		/* Too big. Not that we'd really care, but it's a
++		 * DFU protocol violation */
++		debug("length exceeds flash page size ");
++	    	dev->dfu_state = DFU_STATE_dfuERROR;
++		dev->dfu_status = DFU_STATUS_errADDRESS;
++		return RET_STALL;
++	}
++
++	if (first) {
++		/* Make sure that we have a valid mtd partition table */
++		char *mtdp = getenv("mtdparts");
++		if (!mtdp)
++			run_command("dynpart", 0);
++	}
++
++	if (len == 0) {
++		debug("zero-size write -> MANIFEST_SYNC ");
++		dev->dfu_state = DFU_STATE_dfuMANIFEST_SYNC;
++
++		/* cleanup */
++		switch (dev->alternate) {
++			char buf[12];
++		case 0:
++			sprintf(buf, "%lx", ds->ptr - ds->buf);
++			setenv("filesize", buf);
++			ds->ptr = ds->buf;
++			break;
++		case 1:
++			if (ds->ptr >
++			    ds->buf + sizeof(struct uboot_dfu_trailer)) {
++				struct uboot_dfu_trailer trailer;
++				dfu_trailer_mirror(&trailer, ds->ptr);
++				if (!dfu_trailer_matching(&trailer)) {
++					printf("DFU TRAILER NOT OK\n");
++					dev->dfu_state = DFU_STATE_dfuERROR;
++					dev->dfu_status = DFU_STATUS_errTARGET;
++					return RET_STALL;
++				}
++
++				rc = erase_flash_verify_nand(urb, ds,
++							ds->part->size,
++							ds->part_net_size);
++				/* re-write dynenv marker in OOB */
++				run_command("dynenv set u-boot_env", 0);
++			}
++			ds->nand = NULL;
++			free(ds->buf);
++			ds->ptr = ds->buf = ds->_buf;
++			break;
++		default:
++			rc = 0;
++			if (ds->ptr > ds->buf)
++				rc = erase_flash_verify_nand(urb, ds,
++							ds->nand->erasesize,
++							ds->nand->erasesize);
++			/* rootfs partition */
++			if (!rc && dev->alternate == 5)
++				rc = erase_tail_clean_nand(urb, ds);
++
++			ds->nand = NULL;
++			break;
++		}
++
++		return RET_ZLP;
++	}
++
++	if (urb->actual_length != len) {
++		debug("urb->actual_length(%u) != len(%u) ?!? ",
++			urb->actual_length, len);
++	    	dev->dfu_state = DFU_STATE_dfuERROR;
++		dev->dfu_status = DFU_STATUS_errADDRESS;
++		return RET_STALL;
++	}
++
++	if (first && ds->buf && ds->buf != ds->_buf && ds->buf != LOAD_ADDR) {
++		free(ds->buf);
++		ds->buf = ds->_buf;
++	}
++
++	switch (dev->alternate) {
++	case 0:
++		if (first) {
++			printf("Starting DFU DOWNLOAD to RAM (0x%08p)\n",
++				LOAD_ADDR);
++			ds->buf = LOAD_ADDR;
++			ds->ptr = ds->buf;
++		}
++
++		memcpy(ds->ptr, urb->buffer, len);
++		ds->ptr += len;
++		break;
++	case 1:
++		if (first) {
++			rc = initialize_ds_nand(dev, ds);
++			if (rc)
++				return rc;
++			ds->buf = malloc(ds->part_net_size);
++			if (!ds->buf) {
++				printf("No memory for atomic buffer!!\n");
++				dev->dfu_state = DFU_STATE_dfuERROR;
++				dev->dfu_status = DFU_STATUS_errUNKNOWN;
++				return RET_STALL;
++			}
++			ds->ptr = ds->buf;
++			printf("Starting Atomic DFU DOWNLOAD to partition '%s'\n",
++				ds->part->name);
++		}
++
++		remain_len = (ds->buf + ds->part_net_size) - ds->ptr;
++		if (remain_len < len) {
++			len = remain_len;
++			printf("End of write exceeds partition end\n");
++			dev->dfu_state = DFU_STATE_dfuERROR;
++			dev->dfu_status = DFU_STATUS_errADDRESS;
++			return RET_STALL;
++		}
++		memcpy(ds->ptr, urb->buffer, len);
++		ds->ptr += len;
++		break;
++	default:
++		if (first) {
++			rc = initialize_ds_nand(dev, ds);
++			if (rc)
++				return rc;
++			printf("Starting DFU DOWNLOAD to partition '%s'\n",
++				ds->part->name);
++		}
++
++		size = ds->nand->erasesize;
++		remain_len = ds->buf + size - ds->ptr;
++		if (remain_len < len)
++			actual_len = remain_len;
++
++		memcpy(ds->ptr, urb->buffer, actual_len);
++		ds->ptr += actual_len;
++
++		/* check partition end */
++		if (ds->off + (ds->ptr - ds->buf) > ds->part->offset + ds->part->size) {
++			printf("End of write exceeds partition end\n");
++			dev->dfu_state = DFU_STATE_dfuERROR;
++			dev->dfu_status = DFU_STATUS_errADDRESS;
++			return RET_STALL;
++		}
++
++		if (ds->ptr >= ds->buf + size) {
++			rc = erase_flash_verify_nand(urb, ds,
++						     ds->nand->erasesize,
++						     ds->nand->erasesize);
++			if (rc)
++				return rc;
++			/* copy remainder of data into buffer */
++			memcpy(ds->ptr, urb->buffer + actual_len, len - actual_len);
++			ds->ptr += (len - actual_len);
++		}
++		break;
++	}
++
++	return RET_ZLP;
++}
++
++static int handle_upload(struct urb *urb, u_int16_t val, u_int16_t len, int first)
++{
++	struct usb_device_instance *dev = urb->device;
++	struct dnload_state *ds = &_dnstate;
++	unsigned int remain;
++	int rc;
++
++	debug("upload(val=0x%02x, len=%u, first=%u) ", val, len, first);
++
++	if (len > CONFIG_USBD_DFU_XFER_SIZE) {
++		/* Too big */
++		dev->dfu_state = DFU_STATE_dfuERROR;
++		dev->dfu_status = DFU_STATUS_errADDRESS;
++		//udc_ep0_send_stall();
++		debug("Error: Transfer size > CONFIG_USBD_DFU_XFER_SIZE ");
++		return -EINVAL;
++	}
++
++	switch (dev->alternate) {
++	case 0:
++		if (first) {
++			printf("Starting DFU Upload of RAM (0x%08p)\n",
++				LOAD_ADDR);
++			ds->ptr = ds->buf;
++		}
++
++		/* FIXME: end at some more dynamic point */
++		if (ds->ptr + len > LOAD_ADDR + 0x200000)
++			len = (LOAD_ADDR + 0x200000) - ds->ptr;
++
++		urb->buffer = ds->ptr;
++		urb->actual_length = len;
++		ds->ptr += len;
++		break;
++	default:
++		if (first) {
++			rc = initialize_ds_nand(dev, ds);
++			if (rc)
++				return -EINVAL;
++			printf("Starting DFU Upload of partition '%s'\n",
++				ds->part->name);
++			rc = read_next_nand(urb, ds);
++			if (rc)
++				return -EINVAL;
++		}
++
++		if (len > ds->nand->erasesize) {
++			printf("We don't support transfers bigger than %u\n",
++				ds->nand->erasesize);
++			len = ds->nand->erasesize;
++		}
++
++		remain = ds->nand->erasesize - (ds->ptr - ds->buf);
++		if (len < remain)
++			remain = len;
++
++		debug("copying %u bytes ", remain);
++		urb->buffer = ds->ptr;
++		ds->ptr += remain;
++		urb->actual_length = remain;
++
++		if (ds->ptr >= ds->buf + ds->nand->erasesize &&
++		    ds->off < ds->part->offset + ds->part->size) {
++			rc = read_next_nand(urb, ds);
++			if (rc)
++				return -EINVAL;
++			if (len > remain) {
++				debug("copying another %u bytes ", len - remain);
++				memcpy(urb->buffer + remain, ds->ptr, len - remain);
++				ds->ptr += (len - remain);
++				urb->actual_length += (len - remain);
++			}
++		}
++		break;
++	}
++
++	debug("returning len=%u\n", len);
++	return len;
++}
++
++static void handle_getstatus(struct urb *urb, int max)
++{
++	struct usb_device_instance *dev = urb->device;
++	struct dfu_status *dstat = (struct dfu_status *) urb->buffer;
++
++	debug("getstatus ");
++
++	if (!urb->buffer || urb->buffer_length < sizeof(*dstat)) {
++		debug("invalid urb! ");
++		return;
++	}
++
++	switch (dev->dfu_state) {
++	case DFU_STATE_dfuDNLOAD_SYNC:
++	case DFU_STATE_dfuDNBUSY:
++#if 0
++		if (fsr & AT91C_MC_PROGE) {
++			debug("errPROG ");
++			dev->dfu_status = DFU_STATUS_errPROG;
++			dev->dfu_state = DFU_STATE_dfuERROR;
++		} else if (fsr & AT91C_MC_LOCKE) {
++			debug("errWRITE ");
++			dev->dfu_status = DFU_STATUS_errWRITE;
++			dev->dfu_state = DFU_STATE_dfuERROR;
++		} else if (fsr & AT91C_MC_FRDY) {
++#endif
++			debug("DNLOAD_IDLE ");
++			dev->dfu_state = DFU_STATE_dfuDNLOAD_IDLE;
++#if 0
++		} else {
++			debug("DNBUSY ");
++			dev->dfu_state = DFU_STATE_dfuDNBUSY;
++		}
++#endif
++		break;
++	case DFU_STATE_dfuMANIFEST_SYNC:
++		break;
++	default:
++		//return;
++		break;
++	}
++
++	/* send status response */
++	dstat->bStatus = dev->dfu_status;
++	dstat->bState = dev->dfu_state;
++	dstat->iString = 0;
++	/* FIXME: set dstat->bwPollTimeout */
++	urb->actual_length = MIN(sizeof(*dstat), max);
++
++	/* we don't need to explicitly send data here, will
++	 * be done by the original caller! */
++}
++
++static void handle_getstate(struct urb *urb, int max)
++{
++	debug("getstate ");
++
++	if (!urb->buffer || urb->buffer_length < sizeof(u_int8_t)) {
++		debug("invalid urb! ");
++		return;
++	}
++
++	urb->buffer[0] = urb->device->dfu_state & 0xff;
++	urb->actual_length = sizeof(u_int8_t);
++}
++
++#ifndef CONFIG_USBD_PRODUCTID_DFU
++#define CONFIG_USBD_PRODUCTID_DFU CONFIG_USBD_PRODUCTID_CDCACM
++#endif
++
++static const struct usb_device_descriptor dfu_dev_descriptor = {
++	.bLength		= USB_DT_DEVICE_SIZE,
++	.bDescriptorType	= USB_DT_DEVICE,
++	.bcdUSB			= 0x0100,
++	.bDeviceClass		= 0x00,
++	.bDeviceSubClass	= 0x00,
++	.bDeviceProtocol	= 0x00,
++	.bMaxPacketSize0	= EP0_MAX_PACKET_SIZE,
++	.idVendor		= CONFIG_USBD_VENDORID,
++	.idProduct		= CONFIG_USBD_PRODUCTID_DFU,
++	.bcdDevice		= 0x0000,
++	.iManufacturer		= DFU_STR_MANUFACTURER,
++	.iProduct		= DFU_STR_PRODUCT,
++	.iSerialNumber		= DFU_STR_SERIAL,
++	.bNumConfigurations	= 0x01,
++};
++
++static const struct _dfu_desc dfu_cfg_descriptor = {
++	.ucfg = {
++		.bLength		= USB_DT_CONFIG_SIZE,
++		.bDescriptorType	= USB_DT_CONFIG,
++		.wTotalLength		= USB_DT_CONFIG_SIZE +
++					  DFU_NUM_ALTERNATES * USB_DT_INTERFACE_SIZE +
++					  USB_DT_DFU_SIZE,
++		.bNumInterfaces		= 5,
++		.bConfigurationValue	= 1,
++		.iConfiguration		= DFU_STR_CONFIG,
++		.bmAttributes		= BMATTRIBUTE_RESERVED,
++		.bMaxPower		= 50,
++	},
++	.uif[0] = {
++		.bLength		= USB_DT_INTERFACE_SIZE,
++		.bDescriptorType	= USB_DT_INTERFACE,
++		.bInterfaceNumber	= 0x00,
++		.bAlternateSetting	= 0x00,
++		.bNumEndpoints		= 0x00,
++		.bInterfaceClass	= 0xfe,
++		.bInterfaceSubClass	= 0x01,
++		.bInterfaceProtocol	= 0x02,
++		.iInterface		= DFU_STR_ALT0,
++	},
++	.uif[1] = {
++		.bLength		= USB_DT_INTERFACE_SIZE,
++		.bDescriptorType	= USB_DT_INTERFACE,
++		.bInterfaceNumber	= 0x00,
++		.bAlternateSetting	= 0x01,
++		.bNumEndpoints		= 0x00,
++		.bInterfaceClass	= 0xfe,
++		.bInterfaceSubClass	= 0x01,
++		.bInterfaceProtocol	= 0x02,
++		.iInterface		= DFU_STR_ALT1,
++	},
++	.uif[2] = {
++		.bLength		= USB_DT_INTERFACE_SIZE,
++		.bDescriptorType	= USB_DT_INTERFACE,
++		.bInterfaceNumber	= 0x00,
++		.bAlternateSetting	= 0x02,
++		.bNumEndpoints		= 0x00,
++		.bInterfaceClass	= 0xfe,
++		.bInterfaceSubClass	= 0x01,
++		.bInterfaceProtocol	= 0x02,
++		.iInterface		= DFU_STR_ALT2,
++	},
++	.uif[3] = {
++		.bLength		= USB_DT_INTERFACE_SIZE,
++		.bDescriptorType	= USB_DT_INTERFACE,
++		.bInterfaceNumber	= 0x00,
++		.bAlternateSetting	= 0x03,
++		.bNumEndpoints		= 0x00,
++		.bInterfaceClass	= 0xfe,
++		.bInterfaceSubClass	= 0x01,
++		.bInterfaceProtocol	= 0x02,
++		.iInterface		= DFU_STR_ALT3,
++	},
++	.uif[4] = {
++		.bLength		= USB_DT_INTERFACE_SIZE,
++		.bDescriptorType	= USB_DT_INTERFACE,
++		.bInterfaceNumber	= 0x00,
++		.bAlternateSetting	= 0x04,
++		.bNumEndpoints		= 0x00,
++		.bInterfaceClass	= 0xfe,
++		.bInterfaceSubClass	= 0x01,
++		.bInterfaceProtocol	= 0x02,
++		.iInterface		= DFU_STR_ALT4,
++	},
++	.uif[5] = {
++		.bLength		= USB_DT_INTERFACE_SIZE,
++		.bDescriptorType	= USB_DT_INTERFACE,
++		.bInterfaceNumber	= 0x00,
++		.bAlternateSetting	= 0x05,
++		.bNumEndpoints		= 0x00,
++		.bInterfaceClass	= 0xfe,
++		.bInterfaceSubClass	= 0x01,
++		.bInterfaceProtocol	= 0x02,
++		.iInterface		= DFU_STR_ALT5,
++	},
++	.func_dfu = DFU_FUNC_DESC,
++};
++
++int dfu_ep0_handler(struct urb *urb)
++{
++	int rc, ret = RET_NOTHING;
++	u_int8_t req = urb->device_request.bRequest;
++	u_int16_t val = urb->device_request.wValue;
++	u_int16_t len = urb->device_request.wLength;
++	struct usb_device_instance *dev = urb->device;
++
++	debug("dfu_ep0(req=0x%x, val=0x%x, len=%u) old_state = %u ",
++		req, val, len, dev->dfu_state);
++
++	switch (dev->dfu_state) {
++	case DFU_STATE_appIDLE:
++		switch (req) {
++		case USB_REQ_DFU_GETSTATUS:
++			handle_getstatus(urb, len);
++			break;
++		case USB_REQ_DFU_GETSTATE:
++			handle_getstate(urb, len);
++			break;
++		case USB_REQ_DFU_DETACH:
++			dev->dfu_state = DFU_STATE_appDETACH;
++			ret = RET_ZLP;
++			goto out;
++			break;
++		default:
++			ret = RET_STALL;
++		}
++		break;
++	case DFU_STATE_appDETACH:
++		switch (req) {
++		case USB_REQ_DFU_GETSTATUS:
++			handle_getstatus(urb, len);
++			break;
++		case USB_REQ_DFU_GETSTATE:
++			handle_getstate(urb, len);
++			break;
++		default:
++			dev->dfu_state = DFU_STATE_appIDLE;
++			ret = RET_STALL;
++			goto out;
++			break;
++		}
++		/* FIXME: implement timer to return to appIDLE */
++		break;
++	case DFU_STATE_dfuIDLE:
++		switch (req) {
++		case USB_REQ_DFU_DNLOAD:
++			if (len == 0) {
++				dev->dfu_state = DFU_STATE_dfuERROR;
++				ret = RET_STALL;
++				goto out;
++			}
++			dev->dfu_state = DFU_STATE_dfuDNLOAD_SYNC;
++			ret = handle_dnload(urb, val, len, 1);
++			break;
++		case USB_REQ_DFU_UPLOAD:
++			dev->dfu_state = DFU_STATE_dfuUPLOAD_IDLE;
++			handle_upload(urb, val, len, 1);
++			break;
++		case USB_REQ_DFU_ABORT:
++			/* no zlp? */
++			ret = RET_ZLP;
++			break;
++		case USB_REQ_DFU_GETSTATUS:
++			handle_getstatus(urb, len);
++			break;
++		case USB_REQ_DFU_GETSTATE:
++			handle_getstate(urb, len);
++			break;
++		case USB_REQ_DFU_DETACH:
++			/* Proprietary extension: 'detach' from idle mode and
++			 * get back to runtime mode in case of USB Reset.  As
++			 * much as I dislike this, we just can't use every USB
++			 * bus reset to switch back to runtime mode, since at
++			 * least the Linux USB stack likes to send a number of resets
++			 * in a row :( */
++			dev->dfu_state = DFU_STATE_dfuMANIFEST_WAIT_RST;
++			break;
++		default:
++			dev->dfu_state = DFU_STATE_dfuERROR;
++			ret = RET_STALL;
++			goto out;
++			break;
++		}
++		break;
++	case DFU_STATE_dfuDNLOAD_SYNC:
++		switch (req) {
++		case USB_REQ_DFU_GETSTATUS:
++			handle_getstatus(urb, len);
++			/* FIXME: state transition depending on block completeness */
++			break;
++		case USB_REQ_DFU_GETSTATE:
++			handle_getstate(urb, len);
++			break;
++		default:
++			dev->dfu_state = DFU_STATE_dfuERROR;
++			ret = RET_STALL;
++			goto out;
++		}
++		break;
++	case DFU_STATE_dfuDNBUSY:
++		switch (req) {
++		case USB_REQ_DFU_GETSTATUS:
++			/* FIXME: only accept getstatus if bwPollTimeout
++			 * has elapsed */
++			handle_getstatus(urb, len);
++			break;
++		default:
++			dev->dfu_state = DFU_STATE_dfuERROR;
++			ret = RET_STALL;
++			goto out;
++		}
++		break;
++	case DFU_STATE_dfuDNLOAD_IDLE:
++		switch (req) {
++		case USB_REQ_DFU_DNLOAD:
++			dev->dfu_state = DFU_STATE_dfuDNLOAD_SYNC;
++			ret = handle_dnload(urb, val, len, 0);
++			break;
++		case USB_REQ_DFU_ABORT:
++			dev->dfu_state = DFU_STATE_dfuIDLE;
++			ret = RET_ZLP;
++			break;
++		case USB_REQ_DFU_GETSTATUS:
++			handle_getstatus(urb, len);
++			break;
++		case USB_REQ_DFU_GETSTATE:
++			handle_getstate(urb, len);
++			break;
++		default:
++			dev->dfu_state = DFU_STATE_dfuERROR;
++			ret = RET_STALL;
++			break;
++		}
++		break;
++	case DFU_STATE_dfuMANIFEST_SYNC:
++		switch (req) {
++		case USB_REQ_DFU_GETSTATUS:
++			/* We're MainfestationTolerant */
++			dev->dfu_state = DFU_STATE_dfuIDLE;
++			handle_getstatus(urb, len);
++			break;
++		case USB_REQ_DFU_GETSTATE:
++			handle_getstate(urb, len);
++			break;
++		default:
++			dev->dfu_state = DFU_STATE_dfuERROR;
++			ret = RET_STALL;
++			break;
++		}
++		break;
++	case DFU_STATE_dfuMANIFEST:
++		/* we should never go here */
++		dev->dfu_state = DFU_STATE_dfuERROR;
++		ret = RET_STALL;
++		break;
++	case DFU_STATE_dfuMANIFEST_WAIT_RST:
++		/* we should never go here */
++		break;
++	case DFU_STATE_dfuUPLOAD_IDLE:
++		switch (req) {
++		case USB_REQ_DFU_UPLOAD:
++			/* state transition if less data then requested */
++			rc = handle_upload(urb, val, len, 0);
++			if (rc >= 0 && rc < len)
++				dev->dfu_state = DFU_STATE_dfuIDLE;
++			break;
++		case USB_REQ_DFU_ABORT:
++			dev->dfu_state = DFU_STATE_dfuIDLE;
++			/* no zlp? */
++			ret = RET_ZLP;
++			break;
++		case USB_REQ_DFU_GETSTATUS:
++			handle_getstatus(urb, len);
++			break;
++		case USB_REQ_DFU_GETSTATE:
++			handle_getstate(urb, len);
++			break;
++		default:
++			dev->dfu_state = DFU_STATE_dfuERROR;
++			ret = RET_STALL;
++			break;
++		}
++		break;
++	case DFU_STATE_dfuERROR:
++		switch (req) {
++		case USB_REQ_DFU_GETSTATUS:
++			handle_getstatus(urb, len);
++			break;
++		case USB_REQ_DFU_GETSTATE:
++			handle_getstate(urb, len);
++			break;
++		case USB_REQ_DFU_CLRSTATUS:
++			dev->dfu_state = DFU_STATE_dfuIDLE;
++			dev->dfu_status = DFU_STATUS_OK;
++			/* no zlp? */
++			ret = RET_ZLP;
++			break;
++		default:
++			dev->dfu_state = DFU_STATE_dfuERROR;
++			ret = RET_STALL;
++			break;
++		}
++		break;
++	default:
++		return DFU_EP0_UNHANDLED;
++		break;
++	}
++
++out:
++	debug("new_state = %u, ret = %u\n", dev->dfu_state, ret);
++
++	switch (ret) {
++	case RET_ZLP:
++		//udc_ep0_send_zlp();
++		urb->actual_length = 0;
++		return DFU_EP0_ZLP;
++		break;
++	case RET_STALL:
++		//udc_ep0_send_stall();
++		return DFU_EP0_STALL;
++		break;
++	case RET_NOTHING:
++		break;
++	}
++
++	return DFU_EP0_DATA;
++}
++
++void str2wide (char *str, u16 * wide);
++static struct usb_string_descriptor *create_usbstring(char *string)
++{
++	struct usb_string_descriptor *strdesc;
++	int size = sizeof(*strdesc) + strlen(string)*2;
++
++	if (size > 255)
++		return NULL;
++
++	strdesc = malloc(size);
++	if (!strdesc)
++		return NULL;
++
++	strdesc->bLength = size;
++	strdesc->bDescriptorType = USB_DT_STRING;
++	str2wide(string, strdesc->wData);
++
++	return strdesc;
++}
++
++
++static void dfu_init_strings(struct usb_device_instance *dev)
++{
++	int i;
++	struct usb_string_descriptor *strdesc;
++
++	strdesc = create_usbstring(CONFIG_DFU_CFG_STR);
++	usb_strings[DFU_STR_CONFIG] = strdesc;
++
++	for (i = 0; i < DFU_NUM_ALTERNATES; i++) {
++		if (i == 0) {
++			strdesc = create_usbstring(CONFIG_DFU_ALT0_STR);
++		} else {
++			struct part_info *part = get_partition_nand(i-1);
++
++			if (part)
++				strdesc = create_usbstring(part->name);
++			else
++				strdesc =
++				    create_usbstring("undefined partition");
++		}
++		if (!strdesc)
++			continue;
++		usb_strings[STR_COUNT+i+1] = strdesc;
++	}
++}
++
++int dfu_init_instance(struct usb_device_instance *dev)
++{
++	dev->dfu_dev_desc = &dfu_dev_descriptor;
++	dev->dfu_cfg_desc = &dfu_cfg_descriptor;
++	dev->dfu_state = DFU_STATE_appIDLE;
++	dev->dfu_status = DFU_STATUS_OK;
++
++	if (system_dfu_state)
++		printf("SURPRISE: system_dfu_state is already set\n");
++	system_dfu_state = &dev->dfu_state;
++
++	dfu_init_strings(dev);
++
++	return 0;
++}
++
++static int stdout_switched;
++
++/* event handler for usb device state events */
++void dfu_event(struct usb_device_instance *device,
++	       usb_device_event_t event, int data)
++{
++	char *out;
++
++	switch (event) {
++	case DEVICE_RESET:
++		switch (device->dfu_state) {
++		case DFU_STATE_appDETACH:
++			device->dfu_state = DFU_STATE_dfuIDLE;
++			out = getenv("stdout");
++			if (out && !strcmp(out, "usbtty")) {
++				setenv("stdout", "vga");
++				setenv("stderr", "vga");
++				stdout_switched = 1;
++			}
++			printf("DFU: Switching to DFU Mode\n");
++			break;
++		case DFU_STATE_dfuMANIFEST_WAIT_RST:
++			device->dfu_state = DFU_STATE_appIDLE;
++			printf("DFU: Switching back to Runtime mode\n");
++			if (stdout_switched) {
++				setenv("stdout", "usbtty");
++				setenv("stderr", "usbtty");
++				stdout_switched = 0;
++			}
++			break;
++		default:
++			break;
++		}
++		break;
++	case DEVICE_CONFIGURED:
++	case DEVICE_DE_CONFIGURED:
++		debug("SET_CONFIGURATION(%u) ", device->configuration);
++		/* fallthrough */
++	case DEVICE_SET_INTERFACE:
++		debug("SET_INTERFACE(%u,%u) old_state = %u ",
++			device->interface, device->alternate,
++			device->dfu_state);
++		switch (device->dfu_state) {
++		case DFU_STATE_appIDLE:
++		case DFU_STATE_appDETACH:
++		case DFU_STATE_dfuIDLE:
++		case DFU_STATE_dfuMANIFEST_WAIT_RST:
++			/* do nothing, we're fine */
++			break;
++		case DFU_STATE_dfuDNLOAD_SYNC:
++		case DFU_STATE_dfuDNBUSY:
++		case DFU_STATE_dfuDNLOAD_IDLE:
++		case DFU_STATE_dfuMANIFEST:
++			device->dfu_state = DFU_STATE_dfuERROR;
++			device->dfu_status = DFU_STATUS_errNOTDONE;
++			/* FIXME: free malloc()ed buffer! */
++			break;
++		case DFU_STATE_dfuMANIFEST_SYNC:
++		case DFU_STATE_dfuUPLOAD_IDLE:
++		case DFU_STATE_dfuERROR:
++			device->dfu_state = DFU_STATE_dfuERROR;
++			device->dfu_status = DFU_STATUS_errUNKNOWN;
++			break;
++		}
++		debug("new_state = %u\n", device->dfu_state);
++		break;
++	default:
++		break;
++	}
++}
++#endif /* CONFIG_USBD_DFU */
+Index: u-boot/drivers/Makefile
+===================================================================
+--- u-boot.orig/drivers/Makefile
++++ u-boot/drivers/Makefile
+@@ -47,7 +47,7 @@
+ 	  status_led.o sym53c8xx.o systemace.o ahci.o \
+ 	  ti_pci1410a.o tigon3.o tsec.o \
+ 	  tsi108_eth.o tsi108_i2c.o tsi108_pci.o \
+-	  usbdcore.o usbdcore_ep0.o usbdcore_omap1510.o usbdcore_s3c2410.o usbtty.o \
++	  usbdcore.o usbdfu.o usbdcore_ep0.o usbdcore_omap1510.o usbdcore_s3c2410.o usbtty.o \
+ 	  videomodes.o w83c553f.o \
+ 	  ks8695eth.o \
+ 	  pcf50606.o \
+Index: u-boot/drivers/usbdcore.c
+===================================================================
+--- u-boot.orig/drivers/usbdcore.c
++++ u-boot/drivers/usbdcore.c
+@@ -31,6 +31,7 @@
+ 
+ #include <malloc.h>
+ #include "usbdcore.h"
++#include <usb_dfu.h>
+ 
+ #define MAX_INTERFACES 2
+ 
+@@ -212,6 +213,10 @@
+  */
+ struct usb_device_descriptor *usbd_device_device_descriptor (struct usb_device_instance *device, int port)
+ {
++#ifdef CONFIG_USBD_DFU
++	if (device->dfu_state != DFU_STATE_appIDLE)
++		return device->dfu_dev_desc;
++#endif
+ 	return (device->device_descriptor);
+ }
+ 
+@@ -232,6 +237,10 @@
+ 	if (!(configuration_instance = usbd_device_configuration_instance (device, port, configuration))) {
+ 		return NULL;
+ 	}
++#ifdef CONFIG_USBD_DFU
++	if (device->dfu_state != DFU_STATE_appIDLE)
++		return (&device->dfu_cfg_desc->ucfg);
++#endif
+ 	return (configuration_instance->configuration_descriptor);
+ }
+ 
+@@ -253,6 +262,13 @@
+ 	if (!(interface_instance = usbd_device_interface_instance (device, port, configuration, interface))) {
+ 		return NULL;
+ 	}
++#ifdef CONFIG_USBD_DFU
++	if (device->dfu_state != DFU_STATE_appIDLE) {
++		if (alternate < 0 || alternate >= DFU_NUM_ALTERNATES)
++			return NULL;
++		return &device->dfu_cfg_desc->uif[alternate];
++	}
++#endif
+ 	if ((alternate < 0) || (alternate >= interface_instance->alternates)) {
+ 		return NULL;
+ 	}
+@@ -681,4 +697,7 @@
+ 		/* usbdbg("calling device->event"); */
+ 		device->event(device, event, data);
+ 	}
++#ifdef CONFIG_USBD_DFU
++	dfu_event(device, event, data);
++#endif
+ }
+Index: u-boot/drivers/usbtty.c
+===================================================================
+--- u-boot.orig/drivers/usbtty.c
++++ u-boot/drivers/usbtty.c
+@@ -31,6 +31,8 @@
+ #include "usbtty.h"
+ #include "usb_cdc_acm.h"
+ #include "usbdescriptors.h"
++#include <usb_dfu_descriptors.h>
++#include <usb_dfu.h>
+ #include <config.h>		/* If defined, override Linux identifiers with
+ 			   	 * vendor specific ones */
+ 
+@@ -118,7 +120,7 @@
+ static unsigned short rx_endpoint = 0;
+ static unsigned short tx_endpoint = 0;
+ static unsigned short interface_count = 0;
+-static struct usb_string_descriptor *usbtty_string_table[STR_COUNT];
++static struct usb_string_descriptor *usbtty_string_table[NUM_STRINGS];
+ 
+ /* USB Descriptor Strings */
+ static u8 wstrLang[4] = {4,USB_DT_STRING,0x9,0x4};
+@@ -169,6 +171,10 @@
+ 	struct usb_interface_descriptor data_class_interface;
+ 	struct usb_endpoint_descriptor 
+ 		data_endpoints[NUM_ENDPOINTS-1] __attribute__((packed));
++#ifdef CONFIG_USBD_DFU
++	struct usb_interface_descriptor uif_dfu;
++	struct usb_dfu_func_descriptor func_dfu;
++#endif
+ } __attribute__((packed));
+ 
+ static struct acm_config_desc acm_configuration_descriptors[NUM_CONFIGS] = {
+@@ -179,7 +185,11 @@
+     			.bDescriptorType = USB_DT_CONFIG,
+ 			.wTotalLength =	 
+ 				cpu_to_le16(sizeof(struct acm_config_desc)),
++#ifdef CONFIG_USBD_DFU
++	    		.bNumInterfaces = NUM_ACM_INTERFACES +1,
++#else
+ 	    		.bNumInterfaces = NUM_ACM_INTERFACES,
++#endif
+     			.bConfigurationValue = 1,
+ 			.iConfiguration = STR_CONFIG,
+ 			.bmAttributes = 
+@@ -278,6 +288,11 @@
+ 				.bInterval		= 0xFF,
+ 			},
+ 		},
++#ifdef CONFIG_USBD_DFU
++		/* Interface 3 */
++		.uif_dfu = DFU_RT_IF_DESC,
++		.func_dfu = DFU_FUNC_DESC,
++#endif
+ 	},
+ };	
+ 
+@@ -390,7 +405,7 @@
+ void usbtty_poll (void);
+ 
+ /* utility function for converting char* to wide string used by USB */
+-static void str2wide (char *str, u16 * wide)
++void str2wide (char *str, u16 * wide)
+ {
+ 	int i;
+ 	for (i = 0; i < strlen (str) && str[i]; i++){
+@@ -652,6 +667,9 @@
+ 	device_instance->bus = bus_instance;
+ 	device_instance->configurations = NUM_CONFIGS;
+ 	device_instance->configuration_instance_array = config_instance;
++#ifdef CONFIG_USBD_DFU
++	dfu_init_instance(device_instance);
++#endif
+ 
+ 	/* initialize bus instance */
+ 	memset (bus_instance, 0, sizeof (struct usb_bus_instance));
+Index: u-boot/include/configs/neo1973_gta01.h
+===================================================================
+--- u-boot.orig/include/configs/neo1973_gta01.h
++++ u-boot/include/configs/neo1973_gta01.h
+@@ -167,7 +167,7 @@
+  */
+ #define CONFIG_STACKSIZE	(128*1024)	/* regular stack */
+ #ifdef CONFIG_USE_IRQ
+-#define CONFIG_STACKSIZE_IRQ	(4*1024)	/* IRQ stack */
++#define CONFIG_STACKSIZE_IRQ	(8*1024)	/* IRQ stack */
+ #define CONFIG_STACKSIZE_FIQ	(4*1024)	/* FIQ stack */
+ #endif
+ 
+@@ -184,6 +184,10 @@
+ #define CONFIG_USBD_MANUFACTURER	"OpenMoko, Inc"
+ #define CONFIG_USBD_PRODUCT_NAME	"Neo1973 Bootloader " U_BOOT_VERSION
+ #define CONFIG_EXTRA_ENV_SETTINGS 	"usbtty=cdc_acm\0"
++#define CONFIG_USBD_DFU			1
++#define CONFIG_USBD_DFU_XFER_SIZE 	4096	/* 0x4000 */
++#define CONFIG_USBD_DFU_INTERFACE	2
++
+ 
+ /*-----------------------------------------------------------------------
+  * Physical Memory Map
+Index: u-boot/include/usb_dfu.h
+===================================================================
+--- /dev/null
++++ u-boot/include/usb_dfu.h
+@@ -0,0 +1,99 @@
++#ifndef _DFU_H
++#define _DFU_H
++
++/* USB Device Firmware Update Implementation for u-boot
++ * (C) 2007 by OpenMoko, Inc.
++ * Author: Harald Welte <laforge@openmoko.org>
++ *
++ * based on: USB Device Firmware Update Implementation for OpenPCD
++ * (C) 2006 by Harald Welte <hwelte@hmw-consulting.de>
++ *
++ * This ought to be compliant to the USB DFU Spec 1.0 as available from
++ * http://www.usb.org/developers/devclass_docs/usbdfu10.pdf
++ *
++ *  This program is free software; you can redistribute it and/or modify
++ *  it under the terms of the GNU General Public License as published by
++ *  the Free Software Foundation; either version 2 of the License, or
++ *  (at your option) any later version.
++ *
++ *  This program is distributed in the hope that it will be useful,
++ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
++ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ *  GNU General Public License for more details.
++ *
++ *  You should have received a copy of the GNU General Public License
++ *  along with this program; if not, write to the Free Software
++ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
++ */
++
++#include <asm/types.h>
++#include <usbdescriptors.h>
++#include <usb_dfu_descriptors.h>
++#include <config.h>
++
++/* USB DFU functional descriptor */
++#define DFU_FUNC_DESC  {						\
++	.bLength		= USB_DT_DFU_SIZE,			\
++	.bDescriptorType	= USB_DT_DFU,				\
++	.bmAttributes		= USB_DFU_CAN_UPLOAD | USB_DFU_CAN_DOWNLOAD | USB_DFU_MANIFEST_TOL, \
++	.wDetachTimeOut		= 0xff00,				\
++	.wTransferSize		= CONFIG_USBD_DFU_XFER_SIZE,		\
++	.bcdDFUVersion		= 0x0100,				\
++}
++
++/* USB Interface descriptor in Runtime mode */
++#define DFU_RT_IF_DESC	{						\
++	.bLength		= USB_DT_INTERFACE_SIZE,		\
++	.bDescriptorType	= USB_DT_INTERFACE,			\
++	.bInterfaceNumber	= CONFIG_USBD_DFU_INTERFACE,		\
++	.bAlternateSetting	= 0x00,					\
++	.bNumEndpoints		= 0x00,					\
++	.bInterfaceClass	= 0xfe,					\
++	.bInterfaceSubClass	= 0x01,					\
++	.bInterfaceProtocol	= 0x01,					\
++	.iInterface		= DFU_STR_CONFIG,			\
++}
++
++#define ARRAY_SIZE(x)           (sizeof(x) / sizeof((x)[0]))
++
++#define DFU_NUM_ALTERNATES	6
++
++#define DFU_STR_MANUFACTURER	STR_MANUFACTURER
++#define DFU_STR_PRODUCT		STR_PRODUCT
++#define DFU_STR_SERIAL		STR_SERIAL
++#define DFU_STR_CONFIG		(STR_COUNT)
++#define DFU_STR_ALT0		(STR_COUNT+1)
++#define DFU_STR_ALT1		(STR_COUNT+2)
++#define DFU_STR_ALT2		(STR_COUNT+3)
++#define DFU_STR_ALT3		(STR_COUNT+4)
++#define DFU_STR_ALT4		(STR_COUNT+5)
++#define DFU_STR_ALT5		(STR_COUNT+6)
++#define DFU_STR_COUNT		(STR_COUNT+7)
++
++#define DFU_NUM_STRINGS		(STR_COUNT+8)
++
++#define CONFIG_DFU_CFG_STR	"USB Device Firmware Upgrade"
++#define CONFIG_DFU_ALT0_STR	"RAM 0x32000000"
++
++struct _dfu_desc {
++	struct usb_configuration_descriptor ucfg;
++	struct usb_interface_descriptor uif[DFU_NUM_ALTERNATES];
++	struct usb_dfu_func_descriptor func_dfu;
++};
++
++int dfu_init_instance(struct usb_device_instance *dev);
++
++#define DFU_EP0_NONE		0
++#define DFU_EP0_UNHANDLED	1
++#define DFU_EP0_STALL		2
++#define DFU_EP0_ZLP		3
++#define DFU_EP0_DATA		4
++
++extern volatile enum dfu_state *system_dfu_state; /* for 3rd parties */
++
++int dfu_ep0_handler(struct urb *urb);
++
++void dfu_event(struct usb_device_instance *device,
++	       usb_device_event_t event, int data);
++
++#endif /* _DFU_H */
+Index: u-boot/include/usb_dfu_descriptors.h
+===================================================================
+--- /dev/null
++++ u-boot/include/usb_dfu_descriptors.h
+@@ -0,0 +1,94 @@
++#ifndef _USB_DFU_H
++#define _USB_DFU_H
++/* USB Device Firmware Update Implementation for OpenPCD
++ * (C) 2006 by Harald Welte <hwelte@hmw-consulting.de>
++ *
++ * Protocol definitions for USB DFU
++ *
++ * This ought to be compliant to the USB DFU Spec 1.0 as available from
++ * http://www.usb.org/developers/devclass_docs/usbdfu10.pdf
++ *
++ *  This program is free software; you can redistribute it and/or modify
++ *  it under the terms of the GNU General Public License as published by
++ *  the Free Software Foundation; either version 2 of the License, or
++ *  (at your option) any later version.
++ *
++ *  This program is distributed in the hope that it will be useful,
++ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
++ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ *  GNU General Public License for more details.
++ *
++ *  You should have received a copy of the GNU General Public License
++ *  along with this program; if not, write to the Free Software
++ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
++ */
++
++#include <linux/types.h>
++
++#define USB_DT_DFU			0x21
++
++struct usb_dfu_func_descriptor {
++	u_int8_t		bLength;
++	u_int8_t		bDescriptorType;
++	u_int8_t		bmAttributes;
++#define USB_DFU_CAN_DOWNLOAD	(1 << 0)
++#define USB_DFU_CAN_UPLOAD	(1 << 1)
++#define USB_DFU_MANIFEST_TOL	(1 << 2)
++#define USB_DFU_WILL_DETACH	(1 << 3)
++	u_int16_t		wDetachTimeOut;
++	u_int16_t		wTransferSize;
++	u_int16_t		bcdDFUVersion;
++} __attribute__ ((packed));
++
++#define USB_DT_DFU_SIZE			9
++
++#define USB_TYPE_DFU		(USB_TYPE_CLASS|USB_RECIP_INTERFACE)
++
++/* DFU class-specific requests (Section 3, DFU Rev 1.1) */
++#define USB_REQ_DFU_DETACH	0x00
++#define USB_REQ_DFU_DNLOAD	0x01
++#define USB_REQ_DFU_UPLOAD	0x02
++#define USB_REQ_DFU_GETSTATUS	0x03
++#define USB_REQ_DFU_CLRSTATUS	0x04
++#define USB_REQ_DFU_GETSTATE	0x05
++#define USB_REQ_DFU_ABORT	0x06
++
++struct dfu_status {
++	u_int8_t bStatus;
++	u_int8_t bwPollTimeout[3];
++	u_int8_t bState;
++	u_int8_t iString;
++} __attribute__((packed));
++
++#define DFU_STATUS_OK			0x00
++#define DFU_STATUS_errTARGET		0x01
++#define DFU_STATUS_errFILE		0x02
++#define DFU_STATUS_errWRITE		0x03
++#define DFU_STATUS_errERASE		0x04
++#define DFU_STATUS_errCHECK_ERASED	0x05
++#define DFU_STATUS_errPROG		0x06
++#define DFU_STATUS_errVERIFY		0x07
++#define DFU_STATUS_errADDRESS		0x08
++#define DFU_STATUS_errNOTDONE		0x09
++#define DFU_STATUS_errFIRMWARE		0x0a
++#define DFU_STATUS_errVENDOR		0x0b
++#define DFU_STATUS_errUSBR		0x0c
++#define DFU_STATUS_errPOR		0x0d
++#define DFU_STATUS_errUNKNOWN		0x0e
++#define DFU_STATUS_errSTALLEDPKT	0x0f
++
++enum dfu_state {
++	DFU_STATE_appIDLE		= 0,
++	DFU_STATE_appDETACH		= 1,
++	DFU_STATE_dfuIDLE		= 2,
++	DFU_STATE_dfuDNLOAD_SYNC	= 3,
++	DFU_STATE_dfuDNBUSY		= 4,
++	DFU_STATE_dfuDNLOAD_IDLE	= 5,
++	DFU_STATE_dfuMANIFEST_SYNC	= 6,
++	DFU_STATE_dfuMANIFEST		= 7,
++	DFU_STATE_dfuMANIFEST_WAIT_RST	= 8,
++	DFU_STATE_dfuUPLOAD_IDLE	= 9,
++	DFU_STATE_dfuERROR		= 10,
++};
++
++#endif /* _USB_DFU_H */
+Index: u-boot/include/usbdcore.h
+===================================================================
+--- u-boot.orig/include/usbdcore.h
++++ u-boot/include/usbdcore.h
+@@ -33,6 +33,7 @@
+ 
+ #include <common.h>
+ #include "usbdescriptors.h"
++#include <usb_dfu_descriptors.h>
+ 
+ 
+ #define MAX_URBS_QUEUED 5
+@@ -475,7 +476,11 @@
+  * function driver to inform it that data has arrived.
+  */
+ 
++#ifdef CONFIG_USBD_DFU
++#define URB_BUF_SIZE (128+CONFIG_USBD_DFU_XFER_SIZE)
++#else
+ #define URB_BUF_SIZE 128 /* in linux we'd malloc this, but in u-boot we prefer static data */
++#endif
+ struct urb {
+ 
+ 	struct usb_endpoint_instance *endpoint;
+@@ -603,6 +608,12 @@
+ 	unsigned long usbd_rxtx_timestamp;
+ 	unsigned long usbd_last_rxtx_timestamp;
+ 
++#ifdef CONFIG_USBD_DFU
++	const struct usb_device_descriptor *dfu_dev_desc;
++	const struct _dfu_desc *dfu_cfg_desc;
++	enum dfu_state dfu_state;
++	u_int8_t dfu_status;
++#endif
+ };
+ 
+ /* Bus Interface configuration structure
+@@ -632,6 +643,8 @@
+ extern char *usbd_device_requests[];
+ extern char *usbd_device_descriptors[];
+ 
++extern struct usb_string_descriptor **usb_strings;
++
+ void urb_link_init (urb_link * ul);
+ void urb_detach (struct urb *urb);
+ urb_link *first_urb_link (urb_link * hd);
+Index: u-boot/drivers/usbtty.h
+===================================================================
+--- u-boot.orig/drivers/usbtty.h
++++ u-boot/drivers/usbtty.h
+@@ -71,4 +71,10 @@
+ #define STR_CTRL_INTERFACE	0x06
+ #define STR_COUNT		0x07
+ 
++#ifdef CONFIG_USBD_DFU
++#define NUM_STRINGS		DFU_STR_COUNT
++#else
++#define NUM_STRINGS		STR_COUNT
++#endif
++
+ #endif
+Index: u-boot/include/configs/qt2410.h
+===================================================================
+--- u-boot.orig/include/configs/qt2410.h
++++ u-boot/include/configs/qt2410.h
+@@ -199,7 +199,8 @@
+ #define CONFIG_USBD_PRODUCT_NAME	"QT2410 Bootloader " U_BOOT_VERSION
+ #define CONFIG_EXTRA_ENV_SETTINGS	"usbtty=cdc_acm\0"
+ #define CONFIG_USBD_DFU			1
+-#define CONFIG_USBD_DFU_XFER_SIZE	0x4000
++#define CONFIG_USBD_DFU_XFER_SIZE	4096
++#define CONFIG_USBD_DFU_INTERFACE	2
+ 
+ /*-----------------------------------------------------------------------
+  * Physical Memory Map
+Index: u-boot/tools/Makefile
+===================================================================
+--- u-boot.orig/tools/Makefile
++++ u-boot/tools/Makefile
+@@ -21,10 +21,10 @@
+ # MA 02111-1307 USA
+ #
+ 
+-BIN_FILES	= img2srec$(SFX) mkimage$(SFX) envcrc$(SFX) gen_eth_addr$(SFX) bmp_logo$(SFX)
++BIN_FILES	= img2srec$(SFX) mkimage$(SFX) envcrc$(SFX) gen_eth_addr$(SFX) bmp_logo$(SFX) mkudfu$(SFX)
+ 
+ OBJ_LINKS	= environment.o crc32.o
+-OBJ_FILES	= img2srec.o mkimage.o envcrc.o gen_eth_addr.o bmp_logo.o
++OBJ_FILES	= img2srec.o mkimage.o envcrc.o gen_eth_addr.o bmp_logo.o mkudfu.o
+ 
+ ifeq ($(ARCH),mips)
+ BIN_FILES	+= inca-swap-bytes$(SFX)
+@@ -137,6 +137,10 @@
+ 		$(CC) $(CFLAGS) $(HOST_LDFLAGS) -o $@ $^
+ 		$(STRIP) $@
+ 
++$(obj)mkudfu$(SFX):	$(obj)mkudfu.o
++		$(CC) $(CFLAGS) $(HOST_LDFLAGS) -o $@ $^
++		$(STRIP) $@
++
+ $(obj)ncb$(SFX):	$(obj)ncb.o
+ 		$(CC) $(CFLAGS) $(HOST_LDFLAGS) -o $@ $^
+ 		$(STRIP) $@
+Index: u-boot/tools/mkudfu.c
+===================================================================
+--- /dev/null
++++ u-boot/tools/mkudfu.c
+@@ -0,0 +1,314 @@
++/*
++ * USB DFU file trailer tool
++ * (C) Copyright by OpenMoko, Inc.
++ * Author: Harald Welte <laforge@openmoko.org>
++ *
++ * based on mkimage.c, copyright information as follows:
++ *
++ * (C) Copyright 2000-2004
++ * DENX Software Engineering
++ * Wolfgang Denk, wd@denx.de
++ * All rights reserved.
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License as
++ * published by the Free Software Foundation; either version 2 of
++ * the License, or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
++ * MA 02111-1307 USA
++ */
++
++#include <errno.h>
++#include <fcntl.h>
++#include <stdio.h>
++#include <stdlib.h>
++#include <string.h>
++#ifndef __WIN32__
++#include <netinet/in.h>		/* for host / network byte order conversions	*/
++#endif
++#include <sys/mman.h>
++#include <sys/stat.h>
++#include <time.h>
++#include <unistd.h>
++
++#if defined(__BEOS__) || defined(__NetBSD__) || defined(__APPLE__)
++#include <inttypes.h>
++#endif
++
++#ifdef __WIN32__
++typedef unsigned int __u32;
++
++#define SWAP_LONG(x) \
++	((__u32)( \
++		(((__u32)(x) & (__u32)0x000000ffUL) << 24) | \
++		(((__u32)(x) & (__u32)0x0000ff00UL) <<  8) | \
++		(((__u32)(x) & (__u32)0x00ff0000UL) >>  8) | \
++		(((__u32)(x) & (__u32)0xff000000UL) >> 24) ))
++typedef		unsigned char	uint8_t;
++typedef		unsigned short	uint16_t;
++typedef		unsigned int	uint32_t;
++
++#define     ntohl(a)	SWAP_LONG(a)
++#define     htonl(a)	SWAP_LONG(a)
++#endif	/* __WIN32__ */
++
++#ifndef	O_BINARY		/* should be define'd on __WIN32__ */
++#define O_BINARY	0
++#endif
++
++#include <usb_dfu_trailer.h>
++
++extern int errno;
++
++#ifndef MAP_FAILED
++#define MAP_FAILED (-1)
++#endif
++
++static char *cmdname;
++
++static char *datafile;
++static char *imagefile;
++
++
++static void usage()
++{
++	fprintf (stderr, "%s - create / display u-boot DFU trailer\n", cmdname);
++	fprintf (stderr, "Usage: %s -l image\n"
++			 "          -l ==> list image header information\n"
++			 "       %s -v VID -p PID -r REV -d data_file image\n",
++		cmdname, cmdname);
++	fprintf (stderr, "          -v ==> set vendor ID to 'VID'\n"
++			 "          -p ==> set product ID system to 'PID'\n"
++			 "          -r ==> set hardware revision to 'REV'\n"
++			 "          -d ==> use 'data_file' as input file\n"
++		);
++	exit (EXIT_FAILURE);
++}
++
++static void print_trailer(struct uboot_dfu_trailer *trailer)
++{
++	printf("===> DFU Trailer information:\n");
++	printf("Trailer Vers.:	%d\n", trailer->version);
++	printf("Trailer Length:	%d\n", trailer->length);
++	printf("VendorID:	0x%04x\n", trailer->vendor);
++	printf("ProductID:	0x%04x\n", trailer->product);
++	printf("HW Revision:	0x%04x\n", trailer->revision);
++}
++
++static void copy_file (int ifd, const char *datafile, int pad)
++{
++	int dfd;
++	struct stat sbuf;
++	unsigned char *ptr;
++	int tail;
++	int zero = 0;
++	int offset = 0;
++	int size;
++
++	if ((dfd = open(datafile, O_RDONLY|O_BINARY)) < 0) {
++		fprintf (stderr, "%s: Can't open %s: %s\n",
++			cmdname, datafile, strerror(errno));
++		exit (EXIT_FAILURE);
++	}
++
++	if (fstat(dfd, &sbuf) < 0) {
++		fprintf (stderr, "%s: Can't stat %s: %s\n",
++			cmdname, datafile, strerror(errno));
++		exit (EXIT_FAILURE);
++	}
++
++	ptr = (unsigned char *)mmap(0, sbuf.st_size,
++				    PROT_READ, MAP_SHARED, dfd, 0);
++	if (ptr == (unsigned char *)MAP_FAILED) {
++		fprintf (stderr, "%s: Can't read %s: %s\n",
++			cmdname, datafile, strerror(errno));
++		exit (EXIT_FAILURE);
++	}
++
++	size = sbuf.st_size - offset;
++	if (write(ifd, ptr + offset, size) != size) {
++		fprintf (stderr, "%s: Write error on %s: %s\n",
++			cmdname, imagefile, strerror(errno));
++		exit (EXIT_FAILURE);
++	}
++
++	if (pad && ((tail = size % 4) != 0)) {
++
++		if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
++			fprintf (stderr, "%s: Write error on %s: %s\n",
++				cmdname, imagefile, strerror(errno));
++			exit (EXIT_FAILURE);
++		}
++	}
++
++	(void) munmap((void *)ptr, sbuf.st_size);
++	(void) close (dfd);
++}
++
++
++int main(int argc, char **argv)
++{
++	int ifd;
++	int lflag = 0;
++	struct stat sbuf;
++	u_int16_t opt_vendor, opt_product, opt_revision;
++	struct uboot_dfu_trailer _hdr, _mirror, *hdr = &_hdr;
++
++	opt_vendor = opt_product = opt_revision = 0;
++
++	cmdname = *argv;
++
++	while (--argc > 0 && **++argv == '-') {
++		while (*++*argv) {
++			switch (**argv) {
++			case 'l':
++				lflag = 1;
++				break;
++			case 'v':
++				if (--argc <= 0)
++					usage ();
++				opt_vendor = strtoul(*++argv, NULL, 16);
++				goto NXTARG;
++			case 'p':
++				if (--argc <= 0)
++					usage ();
++				opt_product = strtoul(*++argv, NULL, 16);
++				goto NXTARG;
++			case 'r':
++				if (--argc <= 0)
++					usage ();
++				opt_revision = strtoul(*++argv, NULL, 16);
++				goto NXTARG;
++			case 'd':
++				if (--argc <= 0)
++					usage ();
++				datafile = *++argv;
++				goto NXTARG;
++			case 'h':
++				usage();
++				break;
++			default:
++				usage();
++			}
++		}
++NXTARG:		;
++	}
++
++	if (argc != 1)
++		usage();
++
++	imagefile = *argv;
++
++	if (lflag)
++		ifd = open(imagefile, O_RDONLY|O_BINARY);
++	else
++		ifd = open(imagefile, O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666);
++
++	if (ifd < 0) {
++		fprintf (stderr, "%s: Can't open %s: %s\n",
++			cmdname, imagefile, strerror(errno));
++		exit (EXIT_FAILURE);
++	}
++
++	if (lflag) {
++		unsigned char *ptr;
++		/* list header information of existing image */
++		if (fstat(ifd, &sbuf) < 0) {
++			fprintf (stderr, "%s: Can't stat %s: %s\n",
++				cmdname, imagefile, strerror(errno));
++			exit (EXIT_FAILURE);
++		}
++
++		if ((unsigned)sbuf.st_size < sizeof(struct uboot_dfu_trailer)) {
++			fprintf (stderr,
++				"%s: Bad size: \"%s\" is no valid image\n",
++				cmdname, imagefile);
++			exit (EXIT_FAILURE);
++		}
++
++		ptr = (unsigned char *)mmap(0, sbuf.st_size,
++					    PROT_READ, MAP_SHARED, ifd, 0);
++		if ((caddr_t)ptr == (caddr_t)-1) {
++			fprintf (stderr, "%s: Can't read %s: %s\n",
++				cmdname, imagefile, strerror(errno));
++			exit (EXIT_FAILURE);
++		}
++
++		dfu_trailer_mirror(hdr, ptr+sbuf.st_size);
++
++		if (hdr->magic != UBOOT_DFU_TRAILER_MAGIC) {
++			fprintf (stderr,
++				"%s: Bad Magic Number: \"%s\" is no valid image\n",
++				cmdname, imagefile);
++			exit (EXIT_FAILURE);
++		}
++
++		/* for multi-file images we need the data part, too */
++		print_trailer(hdr);
++
++		(void) munmap((void *)ptr, sbuf.st_size);
++		(void) close (ifd);
++
++		exit (EXIT_SUCCESS);
++	}
++
++	/* if we're not listing: */
++
++	copy_file (ifd, datafile, 0);
++
++	memset (hdr, 0, sizeof(struct uboot_dfu_trailer));
++
++	/* Build new header */
++	hdr->version	= UBOOT_DFU_TRAILER_V1;
++	hdr->magic	= UBOOT_DFU_TRAILER_MAGIC;
++	hdr->length	= sizeof(struct uboot_dfu_trailer);
++	hdr->vendor	= opt_vendor;
++	hdr->product	= opt_product;
++	hdr->revision	= opt_revision;
++
++	print_trailer(hdr);
++	dfu_trailer_mirror(&_mirror, (unsigned char *)hdr+sizeof(*hdr));
++
++	if (write(ifd, &_mirror, sizeof(struct uboot_dfu_trailer))
++					!= sizeof(struct uboot_dfu_trailer)) {
++		fprintf (stderr, "%s: Write error on %s: %s\n",
++			cmdname, imagefile, strerror(errno));
++		exit (EXIT_FAILURE);
++	}
++
++	/* We're a bit of paranoid */
++#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__)
++	(void) fdatasync (ifd);
++#else
++	(void) fsync (ifd);
++#endif
++
++	if (fstat(ifd, &sbuf) < 0) {
++		fprintf (stderr, "%s: Can't stat %s: %s\n",
++			cmdname, imagefile, strerror(errno));
++		exit (EXIT_FAILURE);
++	}
++
++	/* We're a bit of paranoid */
++#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__)
++	(void) fdatasync (ifd);
++#else
++	(void) fsync (ifd);
++#endif
++
++	if (close(ifd)) {
++		fprintf (stderr, "%s: Write error on %s: %s\n",
++			cmdname, imagefile, strerror(errno));
++		exit (EXIT_FAILURE);
++	}
++
++	exit (EXIT_SUCCESS);
++}
+Index: u-boot/include/usb_dfu_trailer.h
+===================================================================
+--- /dev/null
++++ u-boot/include/usb_dfu_trailer.h
+@@ -0,0 +1,31 @@
++#ifndef _USB_DFU_TRAILER_H
++#define _USB_DFU_TRAILER_H
++
++/* trailer handling for DFU files */
++
++#define UBOOT_DFU_TRAILER_V1	1
++#define UBOOT_DFU_TRAILER_MAGIC	0x19731978
++struct uboot_dfu_trailer {
++	u_int32_t	magic;
++	u_int16_t	version;
++	u_int16_t	length;
++	u_int16_t	vendor;
++	u_int16_t	product;
++	u_int32_t	revision;
++} __attribute__((packed));
++
++/* we mirror the trailer because we want it to be longer in later versions
++ * while keeping backwards compatibility */
++static inline void dfu_trailer_mirror(struct uboot_dfu_trailer *trailer,
++				      unsigned char *eof)
++{
++	int i;
++	int len = sizeof(struct uboot_dfu_trailer);
++	unsigned char *src = eof - len;
++	unsigned char *dst = (unsigned char *) trailer;
++
++	for (i = 0; i < len; i++)
++		dst[len-1-i] = src[i];
++}
++
++#endif /* _USB_DFU_TRAILER_H */
+Index: u-boot/Makefile
+===================================================================
+--- u-boot.orig/Makefile
++++ u-boot/Makefile
+@@ -261,6 +261,12 @@
+ $(obj)u-boot.bin:	$(obj)u-boot
+ 		$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
+ 
++$(obj)u-boot.udfu:	$(obj)u-boot.bin
++		./tools/mkudfu -v $(CONFIG_USB_DFU_VENDOR) \
++			       -p $(CONFIG_USB_DFU_PRODUCT) \
++			       -r $(CONFIG_USB_DFU_REVISION) \
++			       -d $< $@
++
+ $(obj)u-boot.img:	$(obj)u-boot.bin
+ 		./tools/mkimage -A $(ARCH) -T firmware -C none \
+ 		-a $(TEXT_BASE) -e 0 \
+Index: u-boot/board/neo1973/gta01/split_by_variant.sh
+===================================================================
+--- u-boot.orig/board/neo1973/gta01/split_by_variant.sh
++++ u-boot/board/neo1973/gta01/split_by_variant.sh
+@@ -15,37 +15,44 @@
+ 	echo "$0:: No parameters - using GTA01Bv3 config"
+ 	echo "#define CONFIG_ARCH_GTA01B_v3" > $CFGINC
+ 	echo "GTA01_BIG_RAM=y" > $CFGTMP
++	echo "CONFIG_USB_DFU_REVISION=0x0230" > $CFGTMP
+ else
+ 	case "$1" in
+ 	gta01v4_config)
+ 	echo "#define CONFIG_ARCH_GTA01_v4" > $CFGINC
+ 	echo "GTA01_BIG_RAM=n" > $CFGTMP
++	echo "CONFIG_USB_DFU_REVISION=0x0140" > $CFGTMP
+ 	;;
+ 
+ 	gta01v3_config)
+ 	echo "#define CONFIG_ARCH_GTA01_v3" > $CFGINC
+ 	echo "GTA01_BIG_RAM=n" > $CFGTMP
++	echo "CONFIG_USB_DFU_REVISION=0x0130" > $CFGTMP
+ 	;;
+ 
+ 	gta01bv2_config)
+ 	echo "#define CONFIG_ARCH_GTA01B_v2" > $CFGINC
+ 	echo "GTA01_BIG_RAM=y" > $CFGTMP
++	echo "CONFIG_USB_DFU_REVISION=0x0220" > $CFGTMP
+ 	;;
+ 
+ 	gta01bv3_config)
+ 	echo "#define CONFIG_ARCH_GTA01B_v3" > $CFGINC
+ 	echo "GTA01_BIG_RAM=y" > $CFGTMP
++	echo "CONFIG_USB_DFU_REVISION=0x0230" > $CFGTMP
+ 	;;
+ 
+ 	gta01bv4_config)
+ 	echo "#define CONFIG_ARCH_GTA01B_v4" > $CFGINC
+ 	echo "GTA01_BIG_RAM=y" > $CFGTMP
++	echo "CONFIG_USB_DFU_REVISION=0x0240" > $CFGTMP
+ 	;;
+ 
+ 	*)
+ 	echo "$0:: Unrecognised config - using GTA01Bv4 config"
+ 	echo "#define CONFIG_ARCH_GTA01B_v4" > $CFGINC
+ 	echo "GTA01_BIG_RAM=y" > $CFGTMP
++	echo "CONFIG_USB_DFU_REVISION=0x0240" > $CFGTMP
+ 	;;
+ 
+ 	esac
+Index: u-boot/board/neo1973/gta01/config.mk
+===================================================================
+--- u-boot.orig/board/neo1973/gta01/config.mk
++++ u-boot/board/neo1973/gta01/config.mk
+@@ -24,6 +24,9 @@
+ #
+ # download area is 3200'0000 or 3300'0000
+ 
++CONFIG_USB_DFU_VENDOR=0x1457
++CONFIG_USB_DFU_PRODUCT=0x5119
++
+ sinclude $(OBJTREE)/board/$(BOARDDIR)/config.tmp
+ 
+ ifeq ($(GTA01_BIG_RAM),y)