Add support for Siemens SX1 mobile phone;

add support for USB-based console
(enable with "setenv stdout usbtty; setenv stdin usbtty")

31 files changed, 7095 insertions, 320 deletions

diff --git a/CHANGELOG b/CHANGELOG
index aa6bfe5..9bebdeb 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,9 @@
 Changes for U-Boot 1.0.2:
 ======================================================================
 
+* Add support for SX1 mobile phone; add support for USB-based console
+  (enable with "setenv stdout usbtty; setenv stdin usbtty")
+
 * Fix LOWBOOT configuration for MPC5200 with DDR memory
 
 * Fix SDRAM timings for LITE5200 / IceCube board
@@ -15,7 +18,7 @@ Changes for U-Boot 1.0.2:
 
 * Patch by Stephan Linz, 26 Feb 2004:
   Bug fix for NFS code on NIOS targets
-  
+
 * Patch by Stephen Williams, 26 Feb 2004:
   Break up SystemACE reads of large block counts
 
diff --git a/Makefile b/Makefile
index b10acbb..d1593ee 100644
--- a/Makefile
+++ b/Makefile
@@ -921,6 +921,9 @@ xtract_trab = $(subst _bigram,,$(subst _bigflash,,$(subst _old,,$(subst _config,
 
 xtract_omap1610xxx = $(subst _cs0boot,,$(subst _cs3boot,, $(subst _config,,$1)))
 
+SX1_config :		unconfig
+	@./mkconfig $(@:_config=) arm arm925t sx1
+
 omap1510inn_config :	unconfig
 	@./mkconfig $(@:_config=) arm arm925t omap1510inn
 
diff --git a/board/sx1/Makefile b/board/sx1/Makefile
new file mode 100644
index 0000000..808c76a
--- /dev/null
+++ b/board/sx1/Makefile
@@ -0,0 +1,47 @@
+#
+# (C) Copyright 2004
+# Wolfgang Denk, DENX Software Engineering, wd@denx.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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	:= sx1.o flash.o
+SOBJS	:= platform.o
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) crv $@ $^
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+-include .depend
+
+#########################################################################
diff --git a/board/sx1/config.mk b/board/sx1/config.mk
new file mode 100644
index 0000000..4902e82
--- /dev/null
+++ b/board/sx1/config.mk
@@ -0,0 +1,19 @@
+#
+# (C) Copyright 2004
+# Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+#
+# SX1 board with OMAP1510 (ARM925T) cpu
+# see http://www.ti.com/ for more information on Texas Insturments
+#
+# SX1 has 1 bank of 256 MB SDRAM
+# Physical Address:
+# 1000'0000 to 2000'0000
+#
+#
+# Linux-Kernel is expected to be at 1000'8000, entry 1000'8000  (mem base + reserved)
+#
+# we load ourself to 1108'0000
+#
+#
+
+TEXT_BASE = 0x11080000
diff --git a/board/sx1/flash.c b/board/sx1/flash.c
new file mode 100644
index 0000000..a4bed61
--- /dev/null
+++ b/board/sx1/flash.c
@@ -0,0 +1,436 @@
+/*
+ * (C) Copyright 2001
+ * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
+ *
+ * (C) Copyright 2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.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
+ */
+
+#include <common.h>
+#include <linux/byteorder/swab.h>
+
+#define PHYS_FLASH_SECT_SIZE	0x00020000	/* 256 KB sectors (x2) */
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];	/* info for FLASH chips	   */
+
+/* Board support for 1 or 2 flash devices */
+#undef FLASH_PORT_WIDTH32
+#define FLASH_PORT_WIDTH16
+
+#ifdef FLASH_PORT_WIDTH16
+#define FLASH_PORT_WIDTH	ushort
+#define FLASH_PORT_WIDTHV	vu_short
+#define SWAP(x)			__swab16(x)
+#else
+#define FLASH_PORT_WIDTH	ulong
+#define FLASH_PORT_WIDTHV	vu_long
+#define SWAP(x)			__swab32(x)
+#endif
+
+#define FPW	FLASH_PORT_WIDTH
+#define FPWV	FLASH_PORT_WIDTHV
+
+#define mb() __asm__ __volatile__ ("" : : : "memory")
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size (FPW * addr, flash_info_t * info);
+static int write_data (flash_info_t * info, ulong dest, FPW data);
+static void flash_get_offsets (ulong base, flash_info_t * info);
+void inline spin_wheel (void);
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init (void)
+{
+	int i;
+	ulong size = 0;
+
+	for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
+		switch (i) {
+		case 0:
+			flash_get_size ((FPW *) PHYS_FLASH_1, &flash_info[i]);
+			flash_get_offsets (PHYS_FLASH_1, &flash_info[i]);
+			break;
+		case 1:
+			flash_get_size ((FPW *) PHYS_FLASH_2, &flash_info[i]);
+			flash_get_offsets (PHYS_FLASH_2, &flash_info[i]);
+			break;
+		default:
+			panic ("configured too many flash banks!\n");
+			break;
+		}
+		size += flash_info[i].size;
+	}
+
+	/* Protect monitor and environment sectors
+	 */
+	flash_protect ( FLAG_PROTECT_SET,
+			CFG_FLASH_BASE,
+			CFG_FLASH_BASE + monitor_flash_len - 1,
+			&flash_info[0]);
+
+	flash_protect ( FLAG_PROTECT_SET,
+			CFG_ENV_ADDR,
+			CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
+			&flash_info[0]);
+
+	return size;
+}
+
+/*-----------------------------------------------------------------------
+ */
+static void flash_get_offsets (ulong base, flash_info_t * info)
+{
+	int i;
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		return;
+	}
+
+	if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
+		for (i = 0; i < info->sector_count; i++) {
+			info->start[i] = base + (i * PHYS_FLASH_SECT_SIZE);
+			info->protect[i] = 0;
+		}
+	}
+}
+
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info (flash_info_t * info)
+{
+	int i;
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		printf ("missing or unknown FLASH type\n");
+		return;
+	}
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case FLASH_MAN_INTEL:
+		printf ("INTEL ");
+		break;
+	default:
+		printf ("Unknown Vendor ");
+		break;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case FLASH_28F128J3A:
+		printf ("28F128J3A\n");
+		break;
+	case FLASH_28F640J3A:
+		printf ("28F640J3A\n");
+		break;
+	default:
+		printf ("Unknown Chip Type\n");
+		break;
+	}
+
+	printf ("  Size: %ld MB in %d Sectors\n",
+		info->size >> 20, info->sector_count);
+
+	printf ("  Sector Start Addresses:");
+	for (i = 0; i < info->sector_count; ++i) {
+		if ((i % 5) == 0)
+			printf ("\n   ");
+		printf (" %08lX%s",
+			info->start[i],
+			info->protect[i] ? " (RO)" : "	   ");
+	}
+	printf ("\n");
+	return;
+}
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+static ulong flash_get_size (FPW * addr, flash_info_t * info)
+{
+	volatile FPW value;
+
+	/* Write auto select command: read Manufacturer ID */
+	addr[0x5555] = (FPW) 0x00AA00AA;
+	addr[0x2AAA] = (FPW) 0x00550055;
+	addr[0x5555] = (FPW) 0x00900090;
+
+	mb ();
+	value = addr[0];
+
+	switch (value) {
+	case (FPW) INTEL_MANUFACT:
+		info->flash_id = FLASH_MAN_INTEL;
+		break;
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
+		addr[0] = (FPW) 0x00FF00FF;	/* restore read mode */
+		return (0);			/* no or unknown flash	*/
+	}
+
+	mb ();
+	value = addr[1];			/* device ID	    */
+	switch (value) {
+	case (FPW) INTEL_ID_28F128J3A:
+		info->flash_id += FLASH_28F128J3A;
+		info->sector_count = 128;
+		info->size = 0x01000000;
+		break;				/* => 16 MB	*/
+	case (FPW) INTEL_ID_28F640J3A:
+		info->flash_id += FLASH_28F640J3A;
+		info->sector_count = 64;
+		info->size = 0x00800000;
+		break;				/* => 8 MB     */
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		break;
+	}
+
+	if (info->sector_count > CFG_MAX_FLASH_SECT) {
+		printf ("** ERROR: sector count %d > max (%d) **\n",
+			info->sector_count, CFG_MAX_FLASH_SECT);
+		info->sector_count = CFG_MAX_FLASH_SECT;
+	}
+
+	addr[0] = (FPW) 0x00FF00FF;	/* restore read mode */
+
+	return (info->size);
+}
+
+
+/*-----------------------------------------------------------------------
+ */
+
+int flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+	int flag, prot, sect;
+	ulong type, start, last;
+	int rcode = 0;
+
+	if ((s_first < 0) || (s_first > s_last)) {
+		if (info->flash_id == FLASH_UNKNOWN) {
+			printf ("- missing\n");
+		} else {
+			printf ("- no sectors to erase\n");
+		}
+		return 1;
+	}
+
+	type = (info->flash_id & FLASH_VENDMASK);
+	if ((type != FLASH_MAN_INTEL)) {
+		printf ("Can't erase unknown flash type %08lx - aborted\n",
+			info->flash_id);
+		return 1;
+	}
+
+	prot = 0;
+	for (sect = s_first; sect <= s_last; ++sect) {
+		if (info->protect[sect]) {
+			prot++;
+		}
+	}
+
+	if (prot) {
+		printf ("- Warning: %d protected sectors will not be erased!\n",
+			prot);
+	} else {
+		printf ("\n");
+	}
+
+	/*start = get_timer (0); */
+	last = start;
+
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts ();
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect <= s_last; sect++) {
+		if (info->protect[sect] == 0) { /* not protected */
+			FPWV *addr = (FPWV *) (info->start[sect]);
+			FPW status;
+
+			printf ("Erasing sector %2d ... ", sect);
+
+			/* arm simple, non interrupt dependent timer */
+			reset_timer_masked ();
+
+			*addr = (FPW) 0x00500050;	/* clear status register */
+			*addr = (FPW) 0x00200020;	/* erase setup */
+			*addr = (FPW) 0x00D000D0;	/* erase confirm */
+
+			while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) {
+				if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) {
+					printf ("Timeout\n");
+					*addr = (FPW) 0x00B000B0;	/* suspend erase     */
+					*addr = (FPW) 0x00FF00FF;	/* reset to read mode */
+					rcode = 1;
+					break;
+				}
+			}
+
+			*addr = (FPW) 0x00500050;	/* clear status register cmd.	*/
+			*addr = (FPW) 0x00FF00FF;	/* resest to read mode		*/
+
+			printf (" done\n");
+		}
+	}
+	return rcode;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ * 4 - Flash not identified
+ */
+
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
+{
+	ulong cp, wp;
+	FPW data;
+	int count, i, l, rc, port_width;
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		return 4;
+	}
+/* get lower word aligned address */
+#ifdef FLASH_PORT_WIDTH16
+	wp = (addr & ~1);
+	port_width = 2;
+#else
+	wp = (addr & ~3);
+	port_width = 4;
+#endif
+
+	/*
+	 * handle unaligned start bytes
+	 */
+	if ((l = addr - wp) != 0) {
+		data = 0;
+		for (i = 0, cp = wp; i < l; ++i, ++cp) {
+			data = (data << 8) | (*(uchar *) cp);
+		}
+		for (; i < port_width && cnt > 0; ++i) {
+			data = (data << 8) | *src++;
+			--cnt;
+			++cp;
+		}
+		for (; cnt == 0 && i < port_width; ++i, ++cp) {
+			data = (data << 8) | (*(uchar *) cp);
+		}
+
+		if ((rc = write_data (info, wp, SWAP (data))) != 0) {
+			return (rc);
+		}
+		wp += port_width;
+	}
+
+	/*
+	 * handle word aligned part
+	 */
+	count = 0;
+	while (cnt >= port_width) {
+		data = 0;
+		for (i = 0; i < port_width; ++i) {
+			data = (data << 8) | *src++;
+		}
+		if ((rc = write_data (info, wp, SWAP (data))) != 0) {
+			return (rc);
+		}
+		wp += port_width;
+		cnt -= port_width;
+		if (count++ > 0x800) {
+			spin_wheel ();
+			count = 0;
+		}
+	}
+
+	if (cnt == 0) {
+		return (0);
+	}
+
+	/*
+	 * handle unaligned tail bytes
+	 */
+	data = 0;
+	for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) {
+		data = (data << 8) | *src++;
+		--cnt;
+	}
+	for (; i < port_width; ++i, ++cp) {
+		data = (data << 8) | (*(uchar *) cp);
+	}
+
+	return (write_data (info, wp, SWAP (data)));
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word or halfword to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_data (flash_info_t * info, ulong dest, FPW data)
+{
+	FPWV *addr = (FPWV *) dest;
+	ulong status;
+	int flag;
+
+	/* Check if Flash is (sufficiently) erased */
+	if ((*addr & data) != data) {
+		printf ("not erased at %08lx (%x)\n", (ulong) addr, *addr);
+		return (2);
+	}
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts ();
+
+	*addr = (FPW) 0x00400040;	/* write setup */
+	*addr = data;
+
+	/* arm simple, non interrupt dependent timer */
+	reset_timer_masked ();
+
+	/* wait while polling the status register */
+	while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) {
+
+		if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) {
+			*addr = (FPW) 0x00FF00FF;	/* restore read mode */
+			return (1);
+		}
+	}
+
+	*addr = (FPW) 0x00FF00FF;	/* restore read mode */
+
+	return (0);
+}
+
+void inline spin_wheel (void)
+{
+	static int p = 0;
+	static char w[] = "\\/-";
+
+	printf ("\010%c", w[p]);
+	(++p == 3) ? (p = 0) : 0;
+}
diff --git a/board/sx1/platform.S b/board/sx1/platform.S
new file mode 100644
index 0000000..3048128
--- /dev/null
+++ b/board/sx1/platform.S
@@ -0,0 +1,406 @@
+/*
+ * Board specific setup info
+ *
+ * (C) Copyright 2003
+ * Texas Instruments, <www.ti.com>
+ *
+ * -- Some bits of code used from rrload's head_OMAP1510.s --
+ * Copyright (C) 2002 RidgeRun, Inc.
+ *
+ * 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
+ */
+
+#include <config.h>
+#include <version.h>
+
+#if defined(CONFIG_OMAP1510)
+#include <./configs/omap1510.h>
+#endif
+
+#define OMAP1510_CLKS ((1<<EN_XORPCK)|(1<<EN_PERCK)|(1<<EN_TIMCK)|(1<<EN_GPIOCK))
+
+
+_TEXT_BASE:
+	.word	TEXT_BASE	 /* sdram load addr from config.mk */
+
+.globl platformsetup
+platformsetup:
+
+	/*
+	 * Configure 1510 pins functions to match our board.
+	 */
+	ldr	r0, REG_PULL_DWN_CTRL_0
+	ldr	r1, VAL_PULL_DWN_CTRL_0
+	str	r1, [r0]
+	ldr	r0, REG_PULL_DWN_CTRL_1
+	ldr	r1, VAL_PULL_DWN_CTRL_1
+	str	r1, [r0]
+	ldr	r0, REG_PULL_DWN_CTRL_2
+	ldr	r1, VAL_PULL_DWN_CTRL_2
+	str	r1, [r0]
+	ldr	r0, REG_PULL_DWN_CTRL_3
+	ldr	r1, VAL_PULL_DWN_CTRL_3
+	str	r1, [r0]
+	ldr	r0, REG_FUNC_MUX_CTRL_4
+	ldr	r1, VAL_FUNC_MUX_CTRL_4
+	str	r1, [r0]
+	ldr	r0, REG_FUNC_MUX_CTRL_5
+	ldr	r1, VAL_FUNC_MUX_CTRL_5
+	str	r1, [r0]
+	ldr	r0, REG_FUNC_MUX_CTRL_6
+	ldr	r1, VAL_FUNC_MUX_CTRL_6
+	str	r1, [r0]
+	ldr	r0, REG_FUNC_MUX_CTRL_7
+	ldr	r1, VAL_FUNC_MUX_CTRL_7
+	str	r1, [r0]
+	ldr	r0, REG_FUNC_MUX_CTRL_8
+	ldr	r1, VAL_FUNC_MUX_CTRL_8
+	str	r1, [r0]
+	ldr	r0, REG_FUNC_MUX_CTRL_9
+	ldr	r1, VAL_FUNC_MUX_CTRL_9
+	str	r1, [r0]
+	ldr	r0, REG_FUNC_MUX_CTRL_A
+	ldr	r1, VAL_FUNC_MUX_CTRL_A
+	str	r1, [r0]
+	ldr	r0, REG_FUNC_MUX_CTRL_B
+	ldr	r1, VAL_FUNC_MUX_CTRL_B
+	str	r1, [r0]
+	ldr	r0, REG_FUNC_MUX_CTRL_C
+	ldr	r1, VAL_FUNC_MUX_CTRL_C
+	str	r1, [r0]
+	ldr	r0, REG_FUNC_MUX_CTRL_D
+	ldr	r1, VAL_FUNC_MUX_CTRL_D
+	str	r1, [r0]
+	ldr	r0, REG_VOLTAGE_CTRL_0
+	ldr	r1, VAL_VOLTAGE_CTRL_0
+	str	r1, [r0]
+	ldr	r0, REG_TEST_DBG_CTRL_0
+	ldr	r1, VAL_TEST_DBG_CTRL_0
+	str	r1, [r0]
+	ldr	r0, REG_MOD_CONF_CTRL_0
+	ldr	r1, VAL_MOD_CONF_CTRL_0
+	str	r1, [r0]
+
+	/* Move to 1510 mode */
+	ldr	r0, REG_COMP_MODE_CTRL_0
+	ldr	r1, VAL_COMP_MODE_CTRL_0
+	str	r1, [r0]
+
+	/* Set up Traffic Ctlr*/
+	ldr r0, REG_TC_IMIF_PRIO
+	mov r1, #0x0
+	str r1, [r0]
+	ldr r0, REG_TC_EMIFS_PRIO
+	str r1, [r0]
+	ldr r0, REG_TC_EMIFF_PRIO
+	str r1, [r0]
+
+	ldr r0, REG_TC_EMIFS_CONFIG
+	ldr r1, [r0]
+	bic r1, r1, #0x08   /* clear the global power-down enable PDE bit */
+	bic r1, r1, #0x01   /* write protect flash by clearing the WP bit */
+	str r1, [r0]	    /* EMIFS GlB Configuration. (value 0x12 most likely) */
+
+	ldr r0, _GPIO_PIN_CONTROL_REG
+	ldrh r1,[r0]
+	orr r1, r1, #0x0001 /* M_PCM_SYNC */
+	orr r1, r1, #0x4000 /* IPC_ACTIVE */
+	orr r1, r1, #0x0002 /* A_IRDA_OFF */
+	orr r1, r1, #0x0800 /* A_SWITCH	  */
+	orr r1, r1, #0x8000 /* A_USB_ON	  */
+	strh r1,[r0]
+
+	ldr r0, _GPIO_DIR_CONTROL_REG
+	ldrh r1,[r0]
+	bic r1, r1, #0x0001 /* M_PCM_SYNC */
+	bic r1, r1, #0x4000 /* IPC_ACTIVE */
+	bic r1, r1, #0x0002 /* A_IRDA_OFF */
+	bic r1, r1, #0x0800 /* A_SWITCH	  */
+	bic r1, r1, #0x8000 /* A_USB_ON	  */
+	strh r1,[r0]
+
+	ldr r0, _GPIO_DATA_OUTPUT_REG
+	ldrh r1,[r0]
+	bic r1, r1, #0x0001 /* M_PCM_SYNC */
+	orr r1, r1, #0x4000 /* IPC_ACTIVE */
+	orr r1, r1, #0x0002 /* A_IRDA_OFF */
+	bic r1, r1, #0x0800 /* A_SWITCH	  */
+	bic r1, r1, #0x8000 /* A_USB_ON	  */
+	strh r1,[r0]
+
+	/* Setup some clock domains */
+	ldr r1, =OMAP1510_CLKS
+	ldr r0, REG_ARM_IDLECT2
+	strh r1, [r0]  /* CLKM, Clock domain control. */
+
+	mov r1, #0x01  /* PER_EN bit */
+	ldr r0, REG_ARM_RSTCT2
+	strh r1, [r0]  /* CLKM; Peripheral reset. */
+
+	/* Set CLKM to Sync-Scalable  */
+	/* I supposidly need to enable the dsp clock before switching */
+	mov r1, #0x1000
+	ldr r0, REG_ARM_SYSST
+	strh r1, [r0]
+	mov r0, #0x400
+1:
+	subs r0, r0, #0x1   /* wait for any bubbles to finish */
+	bne 1b
+
+	ldr r1, VAL_ARM_CKCTL  /* use 12Mhz ref, PER must be <= 50Mhz so /2 */
+	ldr r0, REG_ARM_CKCTL
+	strh r1, [r0]
+
+	/* setup DPLL 1 */
+	ldr r1, VAL_DPLL1_CTL
+	ldr r0, REG_DPLL1_CTL
+	strh r1, [r0]
+	ands r1, r1, #0x10  /* Check if PLL is enabled. */
+	beq lock_end	    /* Do not look for lock if BYPASS selected */
+2:
+	ldrh r1, [r0]
+	ands r1, r1, #0x01  /* Check the LOCK bit. */
+	beq 2b		    /* ...loop until bit goes hi. */
+lock_end:
+
+	/* Set memory timings corresponding to the new clock speed */
+
+	/* Check execution location to determine current execution location
+	 * and branch to appropriate initialization code.
+	 */
+	mov r0, #0x10000000		    /* Load physical SDRAM base. */
+	mov r1, pc			    /* Get current execution location. */
+	cmp r1, r0			    /* Compare. */
+	bge skip_sdram			    /* Skip over EMIF-fast initialization if running from SDRAM. */
+
+	/*
+	 * Delay for SDRAM initialization.
+	 */
+	mov r3, #0x1800			       /* value should be checked */
+3:
+	subs r3, r3, #0x1		      /* Decrement count */
+	bne 3b
+
+	/*
+	 * Set SDRAM control values. Disable refresh before MRS command.
+	 */
+	ldr r0, VAL_TC_EMIFF_SDRAM_CONFIG   /* get good value */
+	bic r3, r0, #0xC		    /* (BIT3|BIT2) ulConfig with auto-refresh disabled. */
+	orr r3, r3, #0x8000000		    /* (BIT27) Disable CLK when Power down or Self-Refresh */
+	orr r3, r3, #0x4000000		    /* BIT26 Power Down Enable */
+	ldr r2, REG_TC_EMIFF_SDRAM_CONFIG   /* Point to configuration register. */
+	str r3, [r2]			    /* Store the passed value with AR disabled. */
+
+	ldr r1, VAL_TC_EMIFF_MRS	    /* get MRS value */
+	ldr r2, REG_TC_EMIFF_MRS	    /* Point to MRS register. */
+	str r1, [r2]			    /* Store the passed value.*/
+
+	ldr r2, REG_TC_EMIFF_SDRAM_CONFIG   /* Point to configuration register. */
+	str r0, [r2]			    /* Store the passed value. */
+
+	/*
+	 * Delay for SDRAM initialization.
+	 */
+	mov r3, #0x1800
+4:
+	subs r3, r3, #1			    /* Decrement count. */
+	bne 4b
+
+skip_sdram:
+
+	/* slow interface */
+	ldr r1, VAL_TC_EMIFS_CS0_CONFIG
+	ldr r0, REG_TC_EMIFS_CS0_CONFIG
+	str r1, [r0] /* Chip Select 0 */
+	ldr r1, VAL_TC_EMIFS_CS1_CONFIG
+	ldr r0, REG_TC_EMIFS_CS1_CONFIG
+	str r1, [r0] /* Chip Select 1 */
+	ldr r1, VAL_TC_EMIFS_CS2_CONFIG
+	ldr r0, REG_TC_EMIFS_CS2_CONFIG
+	str r1, [r0] /* Chip Select 2 */
+	ldr r1, VAL_TC_EMIFS_CS3_CONFIG
+	ldr r0, REG_TC_EMIFS_CS3_CONFIG
+	str r1, [r0] /* Chip Select 3 */
+
+	/* back to arch calling code */
+	mov	pc, lr
+
+/* the literal pools origin */
+	.ltorg
+
+/* OMAP configuration registers */
+REG_FUNC_MUX_CTRL_0:		/* 32 bits */
+	.word 0xfffe1000
+REG_FUNC_MUX_CTRL_1:		/* 32 bits */
+	.word 0xfffe1004
+REG_FUNC_MUX_CTRL_2:		/* 32 bits */
+	.word 0xfffe1008
+REG_COMP_MODE_CTRL_0:		/* 32 bits */
+	.word 0xfffe100c
+REG_FUNC_MUX_CTRL_3:		/* 32 bits */
+	.word 0xfffe1010
+REG_FUNC_MUX_CTRL_4:		/* 32 bits */
+	.word 0xfffe1014
+REG_FUNC_MUX_CTRL_5:		/* 32 bits */
+	.word 0xfffe1018
+REG_FUNC_MUX_CTRL_6:		/* 32 bits */
+	.word 0xfffe101c
+REG_FUNC_MUX_CTRL_7:		/* 32 bits */
+	.word 0xfffe1020
+REG_FUNC_MUX_CTRL_8:		/* 32 bits */
+	.word 0xfffe1024
+REG_FUNC_MUX_CTRL_9:		/* 32 bits */
+	.word 0xfffe1028
+REG_FUNC_MUX_CTRL_A:		/* 32 bits */
+	.word 0xfffe102C
+REG_FUNC_MUX_CTRL_B:		/* 32 bits */
+	.word 0xfffe1030
+REG_FUNC_MUX_CTRL_C:		/* 32 bits */
+	.word 0xfffe1034
+REG_FUNC_MUX_CTRL_D:		/* 32 bits */
+	.word 0xfffe1038
+REG_PULL_DWN_CTRL_0:		/* 32 bits */
+	.word 0xfffe1040
+REG_PULL_DWN_CTRL_1:		/* 32 bits */
+	.word 0xfffe1044
+REG_PULL_DWN_CTRL_2:		/* 32 bits */
+	.word 0xfffe1048
+REG_PULL_DWN_CTRL_3:		/* 32 bits */
+	.word 0xfffe104c
+REG_VOLTAGE_CTRL_0:		/* 32 bits */
+	.word 0xfffe1060
+REG_TEST_DBG_CTRL_0:		/* 32 bits */
+	.word 0xfffe1070
+REG_MOD_CONF_CTRL_0:		/* 32 bits */
+	.word 0xfffe1080
+REG_TC_IMIF_PRIO:		/* 32 bits */
+	.word 0xfffecc00
+REG_TC_EMIFS_PRIO:		/* 32 bits */
+	.word 0xfffecc04
+REG_TC_EMIFF_PRIO:		/* 32 bits */
+	.word 0xfffecc08
+REG_TC_EMIFS_CONFIG:		/* 32 bits */
+	.word 0xfffecc0c
+REG_TC_EMIFS_CS0_CONFIG:	/* 32 bits */
+	.word 0xfffecc10
+REG_TC_EMIFS_CS1_CONFIG:	/* 32 bits */
+	.word 0xfffecc14
+REG_TC_EMIFS_CS2_CONFIG:	/* 32 bits */
+	.word 0xfffecc18
+REG_TC_EMIFS_CS3_CONFIG:	/* 32 bits */
+	.word 0xfffecc1c
+REG_TC_EMIFF_SDRAM_CONFIG:	/* 32 bits */
+	.word 0xfffecc20
+REG_TC_EMIFF_MRS:		/* 32 bits */
+	.word 0xfffecc24
+/* MPU clock/reset/power mode control registers */
+REG_ARM_CKCTL:			/* 16 bits */
+	.word 0xfffece00
+REG_ARM_IDLECT2:		/* 16 bits */
+	.word 0xfffece08
+REG_ARM_RSTCT2:			/* 16 bits */
+	.word 0xfffece14
+REG_ARM_SYSST:			/* 16 bits */
+	.word 0xfffece18
+/* DPLL control registers */
+REG_DPLL1_CTL:			/* 16 bits */
+	.word 0xfffecf00
+/* identification code register */
+REG_IDCODE:			/* 32 bits */
+	.word 0xfffed404
+
+/* SX1 specific */
+_GPIO_PIN_CONTROL_REG:
+	.word GPIO_PIN_CONTROL_REG
+_GPIO_DIR_CONTROL_REG:
+	.word GPIO_DIR_CONTROL_REG
+_GPIO_DATA_OUTPUT_REG:
+	.word GPIO_DATA_OUTPUT_REG
+
+VAL_COMP_MODE_CTRL_0:
+	.word 0x0000eaef
+VAL_FUNC_MUX_CTRL_4:
+	.word 0x00000000
+VAL_FUNC_MUX_CTRL_5:
+	.word 0x00000000
+VAL_FUNC_MUX_CTRL_6:
+	.word 0x00000001
+VAL_FUNC_MUX_CTRL_7:
+	.word 0x00001000
+VAL_FUNC_MUX_CTRL_8:
+	.word 0x00001240       /*[Knoller]  Value of Symbian Image Wing B2*/
+VAL_FUNC_MUX_CTRL_9:
+	.word 0x00201008
+VAL_FUNC_MUX_CTRL_A:
+	.word 0x00001000
+VAL_FUNC_MUX_CTRL_B:
+	.word 0x00000000
+VAL_FUNC_MUX_CTRL_C:
+	.word 0x09008001       /*[Knoller]  Value of Symbian Image Wing B2*/
+VAL_FUNC_MUX_CTRL_D:
+	.word 0x00000000
+VAL_PULL_DWN_CTRL_0:
+	.word 0xfffeffff
+VAL_PULL_DWN_CTRL_1:
+	.word 0xd1ffffec
+VAL_PULL_DWN_CTRL_2:
+	.word 0xffa80c5b
+VAL_PULL_DWN_CTRL_3:
+	.word 0xffffc0fe
+VAL_VOLTAGE_CTRL_0:
+	.word 0x00000007
+VAL_TEST_DBG_CTRL_0:
+	/* The OMAP5910 TRM says this register must be 0, but HelenConfRegs
+	 * says to write a 7.  Don't know what the right thing is to do, so
+	 * I'm leaving it at 7 since that's what was already here.
+	 */
+	.word 0x00000007
+VAL_MOD_CONF_CTRL_0:
+	.word 0x0da20000       /*[Knoller]  Value of Symbian Image Wing B2*/
+
+VAL_ARM_CKCTL:
+	.word 0x010D
+
+VAL_DPLL1_CTL:
+	.word 0x3A33   /*[Hertle] Value of Symbian Image*/
+
+VAL_TC_EMIFS_CS1_CONFIG_PRELIM:
+	.word 0x00001149
+
+VAL_TC_EMIFS_CS2_CONFIG_PRELIM:
+	.word 0x00004158
+
+VAL_TC_EMIFS_CS0_CONFIG:
+	.word 0x00213090       /*[Knoller]  Value of Symbian Image Wing B2*/
+
+VAL_TC_EMIFS_CS1_CONFIG:
+	.word 0x00215070       /*[Knoller]  Value of Symbian Image Wing B2*/
+
+VAL_TC_EMIFS_CS2_CONFIG:
+	.word 0x00001139       /*[Knoller]  Value of Symbian Image Wing B2*/
+
+VAL_TC_EMIFS_CS3_CONFIG:
+	.word 0x00001139       /*[Knoller]  Value of Symbian Image Wing B2*/
+
+VAL_TC_EMIFF_SDRAM_CONFIG:
+	.word 0x0105f0b4       /*[Knoller]  Value of Symbian Image Wing B2*/
+
+
+VAL_TC_EMIFF_MRS:
+	.word 0x00000027       /*[Knoller]  Value of Symbian Image Wing B2*/
diff --git a/board/sx1/sx1.c b/board/sx1/sx1.c
new file mode 100644
index 0000000..c14a385
--- /dev/null
+++ b/board/sx1/sx1.c
@@ -0,0 +1,125 @@
+/*
+ * (C) Copyright 2004
+ * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+ *
+ * (C) Copyright 2003
+ * Texas Instruments, <www.ti.com>
+ * Kshitij Gupta <Kshitij@ti.com>
+ *
+ * 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
+ */
+
+#include <common.h>
+
+static void flash__init (void);
+static void ether__init (void);
+
+static inline void delay (unsigned long loops)
+{
+	__asm__ volatile ("1:\n"
+			  "subs %0, %1, #1\n"
+			  "bne 1b":"=r" (loops):"0" (loops));
+}
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+
+int board_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	/* arch number of SX1 Board */
+	gd->bd->bi_arch_number = 241;
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = 0x10000100;
+
+/* kk - this speeds up your boot a quite a bit.	 However to make it
+ *  work, you need make sure your kernel startup flush bug is fixed.
+ *  ... rkw ...
+ */
+	icache_enable ();
+
+	flash__init ();
+	ether__init ();
+	return 0;
+}
+
+
+int misc_init_r (void)
+{
+	/* volatile ushort *gdir = (ushort *) (GPIO_DIR_CONTROL_REG); */
+	/* volatile ushort *mdir = (ushort *) (MPUIO_DIR_CONTROL_REG); */
+
+	/* setup gpio direction to match board (no floats!) */
+	/**gdir = 0xCFF9; */
+	/**mdir = 0x103F; */
+
+	return (0);
+}
+
+/******************************
+ Routine:
+ Description:
+******************************/
+static void flash__init (void)
+{
+#define CS0_CHIP_SELECT_REG 0xfffecc10
+#define CS3_CHIP_SELECT_REG 0xfffecc1c
+#define EMIFS_GlB_Config_REG 0xfffecc0c
+
+	unsigned int regval;
+
+	regval = *((volatile unsigned int *) EMIFS_GlB_Config_REG);
+	regval = regval | 0x0001;	/* Turn off write protection for flash devices. */
+	if (regval & 0x0002) {
+		regval = regval & 0xfffd;	/* Swap CS0 and CS3 so that flash is visible at 0x0 and eeprom at 0x0c000000. */
+		/* If, instead, you want to reference flash at 0x0c000000, then it seemed the following were necessary. */
+		/* *((volatile unsigned int *)CS0_CHIP_SELECT_REG) = 0x202090; / * Overrides head.S setting of 0x212090 */
+		/* *((volatile unsigned int *)CS3_CHIP_SELECT_REG) = 0x202090; / * Let's flash chips be fully functional. */
+	}
+	*((volatile unsigned int *) EMIFS_GlB_Config_REG) = regval;
+}
+
+
+/******************************
+ Routine:
+ Description:
+******************************/
+static void ether__init (void)
+{
+#define ETH_CONTROL_REG 0x0800000b
+	/* take the Ethernet controller out of reset and wait
+	 * for the EEPROM load to complete.
+	 */
+	*((volatile unsigned char *) ETH_CONTROL_REG) &= ~0x01;
+	udelay (3);
+}
+
+
+int dram_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+	return 0;
+}
diff --git a/board/sx1/u-boot.lds b/board/sx1/u-boot.lds
new file mode 100644
index 0000000..670f4db
--- /dev/null
+++ b/board/sx1/u-boot.lds
@@ -0,0 +1,56 @@
+/*
+ * (C) Copyright 2004
+ * Wolfgang Denk, DENX Software Engineering, <wg@denx.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
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+/*OUTPUT_FORMAT("elf32-arm", "elf32-arm", "elf32-arm")*/
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0x00000000;
+
+	. = ALIGN(4);
+	.text	   :
+	{
+	  cpu/arm925t/start.o	(.text)
+	  *(.text)
+	}
+
+	. = ALIGN(4);
+	.rodata : { *(.rodata) }
+
+	. = ALIGN(4);
+	.data : { *(.data) }
+
+	. = ALIGN(4);
+	.got : { *(.got) }
+
+	__u_boot_cmd_start = .;
+	.u_boot_cmd : { *(.u_boot_cmd) }
+	__u_boot_cmd_end = .;
+
+	. = ALIGN(4);
+	__bss_start = .;
+	.bss : { *(.bss) }
+	_end = .;
+}
diff --git a/common/Makefile b/common/Makefile
index eccb4e4..4c94fc0 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -1,5 +1,5 @@
 #
-# (C) Copyright 2000, 2001
+# (C) Copyright 2004
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -12,7 +12,7 @@
 #
 # 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
+# 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
@@ -47,7 +47,7 @@ COBJS	= main.o ACEX1K.o altera.o bedbug.o \
 	  hush.o kgdb.o lists.o lynxkdi.o memsize.o miiphybb.o miiphyutil.o \
 	  s_record.o soft_i2c.o soft_spi.o spartan2.o \
 	  usb.o usb_kbd.o usb_storage.o \
-	  virtex2.o xilinx.o
+	  virtex2.o xilinx.o circbuf.o
 
 OBJS	= $(AOBJS) $(COBJS)
 
@@ -55,7 +55,7 @@ CPPFLAGS += -I..
 
 all:	$(LIB) $(AOBJS)
 
-$(LIB):	.depend $(OBJS)
+$(LIB): .depend $(OBJS)
 	$(AR) crv $@ $(OBJS)
 
 environment.o: environment.c ../tools/envcrc
diff --git a/common/circbuf.c b/common/circbuf.c
new file mode 100644
index 0000000..2332c63
--- /dev/null
+++ b/common/circbuf.c
@@ -0,0 +1,110 @@
+/*
+ * (C) Copyright 2003
+ * Gerry Hamel, geh@ti.com, Texas Instruments
+ *
+ * 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 <common.h>
+#include <malloc.h>
+
+#include <circbuf.h>
+
+
+int buf_init (circbuf_t * buf, unsigned int size)
+{
+	assert (buf != NULL);
+
+	buf->size = 0;
+	buf->totalsize = size;
+	buf->data = (char *) malloc (sizeof (char) * size);
+	assert (buf->data != NULL);
+
+	buf->top = buf->data;
+	buf->tail = buf->data;
+	buf->end = &(buf->data[size]);
+
+	return 1;
+}
+
+int buf_free (circbuf_t * buf)
+{
+	assert (buf != NULL);
+	assert (buf->data != NULL);
+
+	free (buf->data);
+	memset (buf, 0, sizeof (circbuf_t));
+
+	return 1;
+}
+
+int buf_pop (circbuf_t * buf, char *dest, unsigned int len)
+{
+	unsigned int i;
+	char *p = buf->top;
+
+	assert (buf != NULL);
+	assert (dest != NULL);
+
+	/* Cap to number of bytes in buffer */
+	if (len > buf->size)
+		len = buf->size;
+
+	for (i = 0; i < len; i++) {
+		dest[i] = *p++;
+		/* Bounds check. */
+		if (p == buf->end) {
+			p = buf->data;
+		}
+	}
+
+	/* Update 'top' pointer */
+	buf->top = p;
+	buf->size -= len;
+
+	return len;
+}
+
+int buf_push (circbuf_t * buf, const char *src, unsigned int len)
+{
+	/* NOTE:  this function allows push to overwrite old data. */
+	unsigned int i;
+	char *p = buf->tail;
+
+	assert (buf != NULL);
+	assert (src != NULL);
+
+	for (i = 0; i < len; i++) {
+		*p++ = src[i];
+		if (p == buf->end) {
+			p = buf->data;
+		}
+		/* Make sure pushing too much data just replaces old data */
+		if (buf->size < buf->totalsize) {
+			buf->size++;
+		} else {
+			buf->top++;
+			if (buf->top == buf->end) {
+				buf->top = buf->data;
+			}
+		}
+	}
+
+	/* Update 'tail' pointer */
+	buf->tail = p;
+
+	return len;
+}
diff --git a/common/cmd_load.c b/common/cmd_load.c
index 702cab6..b85db69 100644
--- a/common/cmd_load.c
+++ b/common/cmd_load.c
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2000-2003
+ * (C) Copyright 2000-2004
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
  * See file CREDITS for list of people who contributed to this
@@ -104,8 +104,8 @@ int do_load_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	 * box some time (100 * 1 ms)
 	 */
 	for (i=0; i<100; ++i) {
-		if (serial_tstc()) {
-			(void) serial_getc();
+		if (tstc()) {
+			(void) getc();
 		}
 		udelay(1000);
 	}
@@ -220,9 +220,9 @@ read_record (char *buf, ulong len)
 	--len;	/* always leave room for terminating '\0' byte */
 
 	for (p=buf; p < buf+len; ++p) {
-		c = serial_getc();		/* read character		*/
+		c = getc();		/* read character		*/
 		if (do_echo)
-			serial_putc (c);	/* ... and echo it		*/
+			putc (c);	/* ... and echo it		*/
 
 		switch (c) {
 		case '\r':
@@ -237,7 +237,7 @@ read_record (char *buf, ulong len)
 		}
 
 	    /* Check for the console hangup (if any different from serial) */
-	    if (gd->jt[XF_getc] != serial_getc) {
+	    if (gd->jt[XF_getc] != getc) {
 		if (ctrlc()) {
 		    return (-1);
 		}
@@ -387,7 +387,7 @@ write_record (char *buf)
 	char c;
 
 	while((c = *buf++))
-		serial_putc(c);
+		putc(c);
 
 	/* Check for the console hangup (if any different from serial) */
 
@@ -531,8 +531,8 @@ static ulong load_serial_bin (ulong offset)
 	 * box some time (100 * 1 ms)
 	 */
 	for (i=0; i<100; ++i) {
-		if (serial_tstc()) {
-			(void) serial_getc();
+		if (tstc()) {
+			(void) getc();
 		}
 		udelay(1000);
 	}
@@ -551,7 +551,7 @@ void send_pad (void)
 	int count = his_pad_count;
 
 	while (count-- > 0)
-		serial_putc (his_pad_char);
+		putc (his_pad_char);
 }
 
 /* converts escaped kermit char to binary char */
@@ -579,7 +579,7 @@ void s1_sendpacket (char *packet)
 {
 	send_pad ();
 	while (*packet) {
-		serial_putc (*packet++);
+		putc (*packet++);
 	}
 }
 
@@ -841,7 +841,7 @@ static int k_recv (void)
 		/* get a packet */
 		/* wait for the starting character or ^C */
 		for (;;) {
-			switch (serial_getc ()) {
+			switch (getc ()) {
 			case START_CHAR:	/* start packet */
 				goto START;
 			case ETX_CHAR:		/* ^C waiting for packet */
@@ -853,13 +853,13 @@ static int k_recv (void)
 START:
 		/* get length of packet */
 		sum = 0;
-		new_char = serial_getc ();
+		new_char = getc ();
 		if ((new_char & 0xE0) == 0)
 			goto packet_error;
 		sum += new_char & 0xff;
 		length = untochar (new_char);
 		/* get sequence number */
-		new_char = serial_getc ();
+		new_char = getc ();
 		if ((new_char & 0xE0) == 0)
 			goto packet_error;
 		sum += new_char & 0xff;
@@ -886,7 +886,7 @@ START:
 		/* END NEW CODE */
 
 		/* get packet type */
-		new_char = serial_getc ();
+		new_char = getc ();
 		if ((new_char & 0xE0) == 0)
 			goto packet_error;
 		sum += new_char & 0xff;
@@ -896,19 +896,19 @@ START:
 		if (length == -2) {
 			/* (length byte was 0, decremented twice) */
 			/* get the two length bytes */
-			new_char = serial_getc ();
+			new_char = getc ();
 			if ((new_char & 0xE0) == 0)
 				goto packet_error;
 			sum += new_char & 0xff;
 			len_hi = untochar (new_char);
-			new_char = serial_getc ();
+			new_char = getc ();
 			if ((new_char & 0xE0) == 0)
 				goto packet_error;
 			sum += new_char & 0xff;
 			len_lo = untochar (new_char);
 			length = len_hi * 95 + len_lo;
 			/* check header checksum */
-			new_char = serial_getc ();
+			new_char = getc ();
 			if ((new_char & 0xE0) == 0)
 				goto packet_error;
 			if (new_char != tochar ((sum + ((sum >> 6) & 0x03)) & 0x3f))
@@ -918,7 +918,7 @@ START:
 		}
 		/* bring in rest of packet */
 		while (length > 1) {
-			new_char = serial_getc ();
+			new_char = getc ();
 			if ((new_char & 0xE0) == 0)
 				goto packet_error;
 			sum += new_char & 0xff;
@@ -935,13 +935,13 @@ START:
 			}
 		}
 		/* get and validate checksum character */
-		new_char = serial_getc ();
+		new_char = getc ();
 		if ((new_char & 0xE0) == 0)
 			goto packet_error;
 		if (new_char != tochar ((sum + ((sum >> 6) & 0x03)) & 0x3f))
 			goto packet_error;
 		/* get END_CHAR */
-		new_char = serial_getc ();
+		new_char = getc ();
 		if (new_char != END_CHAR) {
 		  packet_error:
 			/* restore state machines */
diff --git a/common/devices.c b/common/devices.c
index bf7486a..aa05533 100644
--- a/common/devices.c
+++ b/common/devices.c
@@ -194,6 +194,9 @@ int devices_init (void)
 	drv_logbuff_init ();
 #endif
 	drv_system_init ();
+#ifdef CONFIG_USB_TTY
+	drv_usbtty_init ();
+#endif
 
 	return (0);
 }
diff --git a/cpu/arm925t/interrupts.c b/cpu/arm925t/interrupts.c
index 00e8c18..d77c4e6 100644
--- a/cpu/arm925t/interrupts.c
+++ b/cpu/arm925t/interrupts.c
@@ -23,7 +23,7 @@
  *
  * 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
+ * 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
@@ -107,15 +107,15 @@ void show_regs (struct pt_regs *regs)
 
 	flags = condition_codes (regs);
 
-	printf ("pc : [<%08lx>]    lr : [<%08lx>]\n"
-		"sp : %08lx  ip : %08lx  fp : %08lx\n",
+	printf ("pc : [<%08lx>]	   lr : [<%08lx>]\n"
+		"sp : %08lx  ip : %08lx	 fp : %08lx\n",
 		instruction_pointer (regs),
 		regs->ARM_lr, regs->ARM_sp, regs->ARM_ip, regs->ARM_fp);
-	printf ("r10: %08lx  r9 : %08lx  r8 : %08lx\n",
+	printf ("r10: %08lx  r9 : %08lx	 r8 : %08lx\n",
 		regs->ARM_r10, regs->ARM_r9, regs->ARM_r8);
-	printf ("r7 : %08lx  r6 : %08lx  r5 : %08lx  r4 : %08lx\n",
+	printf ("r7 : %08lx  r6 : %08lx	 r5 : %08lx  r4 : %08lx\n",
 		regs->ARM_r7, regs->ARM_r6, regs->ARM_r5, regs->ARM_r4);
-	printf ("r3 : %08lx  r2 : %08lx  r1 : %08lx  r0 : %08lx\n",
+	printf ("r3 : %08lx  r2 : %08lx	 r1 : %08lx  r0 : %08lx\n",
 		regs->ARM_r3, regs->ARM_r2, regs->ARM_r1, regs->ARM_r0);
 	printf ("Flags: %c%c%c%c",
 		flags & CC_N_BIT ? 'N' : 'n',
@@ -227,17 +227,17 @@ void udelay (unsigned long usec)
 #else
 	ulong tmo, tmp;
 
-	if(usec >= 1000){               /* if "big" number, spread normalization to seconds */
-		tmo = usec / 1000;      /* start to normalize for usec to ticks per sec */
-		tmo *= CFG_HZ;          /* find number of "ticks" to wait to achieve target */
-		tmo /= 1000;            /* finish normalize. */
-	}else{                          /* else small number, don't kill it prior to HZ multiply */
+	if(usec >= 1000){		/* if "big" number, spread normalization to seconds */
+		tmo = usec / 1000;	/* start to normalize for usec to ticks per sec */
+		tmo *= CFG_HZ;		/* find number of "ticks" to wait to achieve target */
+		tmo /= 1000;		/* finish normalize. */
+	}else{				/* else small number, don't kill it prior to HZ multiply */
 		tmo = usec * CFG_HZ;
 		tmo /= (1000*1000);
 	}
 
 	tmp = get_timer (0);		/* get current timestamp */
-	if( (tmo + tmp + 1) < tmp ) 	/* if setting this fordward will roll time stamp */
+	if( (tmo + tmp + 1) < tmp )	/* if setting this fordward will roll time stamp */
 		reset_timer_masked ();	/* reset "advancing" timestamp to 0, set lastdec value */
 	else
 		tmo += tmp;		/* else, set advancing stamp wake up time */
@@ -251,7 +251,7 @@ void reset_timer_masked (void)
 {
 	/* reset time */
 	lastdec = READ_TIMER;  /* capure current decrementer value time */
-	timestamp = 0;         /* start "advancing" time stamp from 0 */
+	timestamp = 0;	       /* start "advancing" time stamp from 0 */
 }
 
 ulong get_timer_masked (void)
@@ -283,13 +283,13 @@ void udelay_masked (unsigned long usec)
     for (i=time_remaining; i>0; i--) { }
 #else
 
-	ulong tmo, tmp;
+	ulong tmo;
 
-	if(usec >= 1000){               /* if "big" number, spread normalization to seconds */
-		tmo = usec / 1000;      /* start to normalize for usec to ticks per sec */
-		tmo *= CFG_HZ;          /* find number of "ticks" to wait to achieve target */
-		tmo /= 1000;            /* finish normalize. */
-	}else{                          /* else small number, don't kill it prior to HZ multiply */
+	if(usec >= 1000){		/* if "big" number, spread normalization to seconds */
+		tmo = usec / 1000;	/* start to normalize for usec to ticks per sec */
+		tmo *= CFG_HZ;		/* find number of "ticks" to wait to achieve target */
+		tmo /= 1000;		/* finish normalize. */
+	}else{				/* else small number, don't kill it prior to HZ multiply */
 		tmo = usec * CFG_HZ;
 		tmo /= (1000*1000);
 	}
diff --git a/drivers/Makefile b/drivers/Makefile
index b333aed..32a6a06 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -1,5 +1,5 @@
 #
-# (C) Copyright 2000
+# (C) Copyright 2000-2004
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -12,7 +12,7 @@
 #
 # 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
+# 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
@@ -29,7 +29,7 @@ LIB	= libdrivers.a
 
 OBJS	= 3c589.o 5701rls.o ali512x.o \
 	  bcm570x.o bcm570x_autoneg.o cfb_console.o cfi_flash.o \
-	  cs8900.o ct69000.o dataflash.o dc2114x.o          \
+	  cs8900.o ct69000.o dataflash.o dc2114x.o	    \
 	  e1000.o eepro100.o \
 	  i8042.o i82365.o inca-ip_sw.o \
 	  lan91c96.o natsemi.o netarm_eth.o \
@@ -40,11 +40,12 @@ OBJS	= 3c589.o 5701rls.o ali512x.o \
 	  rtl8019.o rtl8139.o \
 	  s3c24x0_i2c.o sed13806.o serial.o serial_max3100.o \
 	  smc91111.o smiLynxEM.o status_led.o sym53c8xx.o \
-	  ti_pci1410a.o tigon3.o w83c553f.o
+	  ti_pci1410a.o tigon3.o w83c553f.o omap1510_i2c.o \
+	  usbdcore.o usbdcore_ep0.o usbdcore_omap1510.o usbtty.o
 
 all:	$(LIB)
 
-$(LIB):	$(OBJS)
+$(LIB): $(OBJS)
 	$(AR) crv $@ $(OBJS)
 
 #########################################################################
diff --git a/drivers/ns16550.c b/drivers/ns16550.c
index a7aa40f..05862ee 100644
--- a/drivers/ns16550.c
+++ b/drivers/ns16550.c
@@ -18,7 +18,7 @@ void NS16550_init (NS16550_t com_port, int baud_divisor)
 {
 	com_port->ier = 0x00;
 #ifdef CONFIG_OMAP1510
-	com_port->mdr1 = 0x7;   /* mode select reset TL16C750*/
+	com_port->mdr1 = 0x7;	/* mode select reset TL16C750*/
 #endif
 	com_port->lcr = LCR_BKSE | LCRVAL;
 	com_port->dll = baud_divisor & 0xff;
@@ -50,7 +50,12 @@ void NS16550_putc (NS16550_t com_port, char c)
 
 char NS16550_getc (NS16550_t com_port)
 {
-	while ((com_port->lsr & LSR_DR) == 0);
+	while ((com_port->lsr & LSR_DR) == 0) {
+#ifdef CONFIG_USB_TTY
+		extern void usbtty_poll(void);
+		usbtty_poll();
+#endif
+	}
 	return (com_port->rbr);
 }
 
diff --git a/drivers/omap1510_i2c.c b/drivers/omap1510_i2c.c
new file mode 100644
index 0000000..04400fb
--- /dev/null
+++ b/drivers/omap1510_i2c.c
@@ -0,0 +1,281 @@
+/*
+ * Basic I2C functions
+ *
+ * Copyright (c) 2003 Texas Instruments
+ *
+ * This package is free software;  you can redistribute it and/or
+ * modify it under the terms of the license found in the file
+ * named COPYING that should have accompanied this file.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Author: Jian Zhang jzhang@ti.com, Texas Instruments
+ *
+ * Copyright (c) 2003 Wolfgang Denk, wd@denx.de
+ * Rewritten to fit into the current U-Boot framework
+ *
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_DRIVER_OMAP1510_I2C
+
+static void wait_for_bb (void);
+static u16 wait_for_pin (void);
+
+void i2c_init (int speed, int slaveadd)
+{
+	u16 scl;
+
+	if (inw (I2C_CON) & I2C_CON_EN) {
+		outw (0, I2C_CON);
+		udelay (5000);
+	}
+
+	/* 12Mhz I2C module clock */
+	outw (0, I2C_PSC);
+	outw (I2C_CON_EN, I2C_CON);
+	outw (0, I2C_SYSTEST);
+	/* have to enable intrrupts or OMAP i2c module doesn't work */
+	outw (I2C_IE_XRDY_IE | I2C_IE_RRDY_IE | I2C_IE_ARDY_IE |
+	      I2C_IE_NACK_IE | I2C_IE_AL_IE, I2C_IE);
+	scl = (12000000 / 2) / speed - 6;
+	outw (scl, I2C_SCLL);
+	outw (scl, I2C_SCLH);
+	/* own address */
+	outw (slaveadd, I2C_OA);
+	outw (0, I2C_CNT);
+	udelay (1000);
+}
+
+static int i2c_read_byte (u8 devaddr, u8 regoffset, u8 * value)
+{
+	int i2c_error = 0;
+	u16 status;
+
+	/* wait until bus not busy */
+	wait_for_bb ();
+
+	/* one byte only */
+	outw (1, I2C_CNT);
+	/* set slave address */
+	outw (devaddr, I2C_SA);
+	/* no stop bit needed here */
+	outw (I2C_CON_EN | I2C_CON_MST | I2C_CON_STT | I2C_CON_TRX, I2C_CON);
+
+	status = wait_for_pin ();
+
+	if (status & I2C_STAT_XRDY) {
+		/* Important: have to use byte access */
+		*(volatile u8 *) (I2C_DATA) = regoffset;
+		udelay (20000);
+		if (inw (I2C_STAT) & I2C_STAT_NACK) {
+			i2c_error = 1;
+		}
+	} else {
+		i2c_error = 1;
+	}
+
+	if (!i2c_error) {
+		/* free bus, otherwise we can't use a combined transction */
+		outw (0, I2C_CON);
+		while (inw (I2C_STAT) || (inw (I2C_CON) & I2C_CON_MST)) {
+			udelay (10000);
+			/* Have to clear pending interrupt to clear I2C_STAT */
+			inw (I2C_IV);
+		}
+
+		wait_for_bb ();
+		/* set slave address */
+		outw (devaddr, I2C_SA);
+		/* read one byte from slave */
+		outw (1, I2C_CNT);
+		/* need stop bit here */
+		outw (I2C_CON_EN | I2C_CON_MST | I2C_CON_STT | I2C_CON_STP,
+		      I2C_CON);
+
+		status = wait_for_pin ();
+		if (status & I2C_STAT_RRDY) {
+			*value = inw (I2C_DATA);
+			udelay (20000);
+		} else {
+			i2c_error = 1;
+		}
+
+		if (!i2c_error) {
+			outw (I2C_CON_EN, I2C_CON);
+			while (inw (I2C_STAT)
+			       || (inw (I2C_CON) & I2C_CON_MST)) {
+				udelay (10000);
+				inw (I2C_IV);
+			}
+		}
+	}
+
+	return i2c_error;
+}
+
+static int i2c_write_byte (u8 devaddr, u8 regoffset, u8 value)
+{
+	int i2c_error = 0;
+	u16 status;
+
+	/* wait until bus not busy */
+	wait_for_bb ();
+
+	/* two bytes */
+	outw (2, I2C_CNT);
+	/* set slave address */
+	outw (devaddr, I2C_SA);
+	/* stop bit needed here */
+	outw (I2C_CON_EN | I2C_CON_MST | I2C_CON_STT | I2C_CON_TRX |
+	      I2C_CON_STP, I2C_CON);
+
+	/* wait until state change */
+	status = wait_for_pin ();
+
+	if (status & I2C_STAT_XRDY) {
+		/* send out two bytes */
+		outw ((value << 8) + regoffset, I2C_DATA);
+		/* must have enough delay to allow BB bit to go low */
+		udelay (30000);
+		if (inw (I2C_STAT) & I2C_STAT_NACK) {
+			i2c_error = 1;
+		}
+	} else {
+		i2c_error = 1;
+	}
+
+	if (!i2c_error) {
+		outw (I2C_CON_EN, I2C_CON);
+		while (inw (I2C_STAT) || (inw (I2C_CON) & I2C_CON_MST)) {
+			udelay (1000);
+			/* have to read to clear intrrupt */
+			inw (I2C_IV);
+		}
+	}
+
+	return i2c_error;
+}
+
+int i2c_probe (uchar chip)
+{
+	int res = 1;
+
+	if (chip == inw (I2C_OA)) {
+		return res;
+	}
+
+	/* wait until bus not busy */
+	wait_for_bb ();
+
+	/* try to read one byte */
+	outw (1, I2C_CNT);
+	/* set slave address */
+	outw (chip, I2C_SA);
+	/* stop bit needed here */
+	outw (I2C_CON_EN | I2C_CON_MST | I2C_CON_STT | I2C_CON_STP, I2C_CON);
+	/* enough delay for the NACK bit set */
+	udelay (2000);
+	if (!(inw (I2C_STAT) & I2C_STAT_NACK)) {
+		res = 0;
+	} else {
+		outw (inw (I2C_CON) | I2C_CON_STP, I2C_CON);
+		udelay (20);
+		wait_for_bb ();
+	}
+
+	return res;
+}
+
+int i2c_read (uchar chip, uint addr, int alen, uchar * buffer, int len)
+{
+	int i;
+
+	if (alen > 1) {
+		printf ("I2C read: addr len %d not supported\n", alen);
+		return 1;
+	}
+
+	if (addr + len > 256) {
+		printf ("I2C read: address out of range\n");
+		return 1;
+	}
+
+	for (i = 0; i < len; i++) {
+		if (i2c_read_byte (chip, addr + i, &buffer[i])) {
+			printf ("I2C read: I/O error\n");
+			i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+int i2c_write (uchar chip, uint addr, int alen, uchar * buffer, int len)
+{
+	int i;
+
+	if (alen > 1) {
+		printf ("I2C read: addr len %d not supported\n", alen);
+		return 1;
+	}
+
+	if (addr + len > 256) {
+		printf ("I2C read: address out of range\n");
+		return 1;
+	}
+
+	for (i = 0; i < len; i++) {
+		if (i2c_write_byte (chip, addr + i, buffer[i])) {
+			printf ("I2C read: I/O error\n");
+			i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static void wait_for_bb (void)
+{
+	int timeout = 10;
+
+	while ((inw (I2C_STAT) & I2C_STAT_BB) && timeout--) {
+		inw (I2C_IV);
+		udelay (1000);
+	}
+
+	if (timeout <= 0) {
+		printf ("timed out in wait_for_bb: I2C_STAT=%x\n",
+			inw (I2C_STAT));
+	}
+}
+
+static u16 wait_for_pin (void)
+{
+	u16 status, iv;
+	int timeout = 10;
+
+	do {
+		udelay (1000);
+		status = inw (I2C_STAT);
+		iv = inw (I2C_IV);
+	} while (!iv &&
+		 !(status &
+		   (I2C_STAT_ROVR | I2C_STAT_XUDF | I2C_STAT_XRDY |
+		    I2C_STAT_RRDY | I2C_STAT_ARDY | I2C_STAT_NACK |
+		    I2C_STAT_AL)) && timeout--);
+
+	if (timeout <= 0) {
+		printf ("timed out in wait_for_pin: I2C_STAT=%x\n",
+			inw (I2C_STAT));
+	}
+
+	return status;
+}
+
+#endif /* CONFIG_DRIVER_OMAP1510_I2C */
diff --git a/drivers/usbdcore.c b/drivers/usbdcore.c
new file mode 100644
index 0000000..308c7ce
--- /dev/null
+++ b/drivers/usbdcore.c
@@ -0,0 +1,684 @@
+/*
+ * (C) Copyright 2003
+ * Gerry Hamel, geh@ti.com, Texas Instruments
+ *
+ * Based on
+ * linux/drivers/usbd/usbd.c.c - USB Device Core Layer
+ *
+ * Copyright (c) 2000, 2001, 2002 Lineo
+ * Copyright (c) 2001 Hewlett Packard
+ *
+ * By:
+ *	Stuart Lynne <sl@lineo.com>,
+ *	Tom Rushworth <tbr@lineo.com>,
+ *	Bruce Balden <balden@lineo.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <malloc.h>
+#include "usbdcore.h"
+
+#define MAX_INTERFACES 2
+
+
+int maxstrings = 20;
+
+/* Global variables ************************************************************************** */
+
+struct usb_string_descriptor **usb_strings;
+
+int usb_devices;
+
+extern struct usb_function_driver ep0_driver;
+
+int registered_functions;
+int registered_devices;
+
+char *usbd_device_events[] = {
+	"DEVICE_UNKNOWN",
+	"DEVICE_INIT",
+	"DEVICE_CREATE",
+	"DEVICE_HUB_CONFIGURED",
+	"DEVICE_RESET",
+	"DEVICE_ADDRESS_ASSIGNED",
+	"DEVICE_CONFIGURED",
+	"DEVICE_SET_INTERFACE",
+	"DEVICE_SET_FEATURE",
+	"DEVICE_CLEAR_FEATURE",
+	"DEVICE_DE_CONFIGURED",
+	"DEVICE_BUS_INACTIVE",
+	"DEVICE_BUS_ACTIVITY",
+	"DEVICE_POWER_INTERRUPTION",
+	"DEVICE_HUB_RESET",
+	"DEVICE_DESTROY",
+	"DEVICE_FUNCTION_PRIVATE",
+};
+
+char *usbd_device_states[] = {
+	"STATE_INIT",
+	"STATE_CREATED",
+	"STATE_ATTACHED",
+	"STATE_POWERED",
+	"STATE_DEFAULT",
+	"STATE_ADDRESSED",
+	"STATE_CONFIGURED",
+	"STATE_UNKNOWN",
+};
+
+char *usbd_device_requests[] = {
+	"GET STATUS",		/* 0 */
+	"CLEAR FEATURE",	/* 1 */
+	"RESERVED",		/* 2 */
+	"SET FEATURE",		/* 3 */
+	"RESERVED",		/* 4 */
+	"SET ADDRESS",		/* 5 */
+	"GET DESCRIPTOR",	/* 6 */
+	"SET DESCRIPTOR",	/* 7 */
+	"GET CONFIGURATION",	/* 8 */
+	"SET CONFIGURATION",	/* 9 */
+	"GET INTERFACE",	/* 10 */
+	"SET INTERFACE",	/* 11 */
+	"SYNC FRAME",		/* 12 */
+};
+
+char *usbd_device_descriptors[] = {
+	"UNKNOWN",		/* 0 */
+	"DEVICE",		/* 1 */
+	"CONFIG",		/* 2 */
+	"STRING",		/* 3 */
+	"INTERFACE",		/* 4 */
+	"ENDPOINT",		/* 5 */
+	"DEVICE QUALIFIER",	/* 6 */
+	"OTHER SPEED",		/* 7 */
+	"INTERFACE POWER",	/* 8 */
+};
+
+char *usbd_device_status[] = {
+	"USBD_OPENING",
+	"USBD_OK",
+	"USBD_SUSPENDED",
+	"USBD_CLOSING",
+};
+
+
+/* Descriptor support functions ************************************************************** */
+
+
+/**
+ * usbd_get_string - find and return a string descriptor
+ * @index: string index to return
+ *
+ * Find an indexed string and return a pointer to a it.
+ */
+struct usb_string_descriptor *usbd_get_string (__u8 index)
+{
+	if (index >= maxstrings) {
+		return NULL;
+	}
+	return usb_strings[index];
+}
+
+
+/* Access to device descriptor functions ***************************************************** */
+
+
+/* *
+ * usbd_device_configuration_instance - find a configuration instance for this device
+ * @device:
+ * @configuration: index to configuration, 0 - N-1
+ *
+ * Get specifed device configuration. Index should be bConfigurationValue-1.
+ */
+static struct usb_configuration_instance *usbd_device_configuration_instance (struct usb_device_instance *device,
+		unsigned int port, unsigned int configuration)
+{
+	/* XXX */
+	configuration = configuration ? configuration - 1 : 0;
+
+	if (configuration >= device->configurations) {
+		return NULL;
+	}
+	return device->configuration_instance_array + configuration;
+}
+
+
+/* *
+ * usbd_device_interface_instance
+ * @device:
+ * @configuration: index to configuration, 0 - N-1
+ * @interface: index to interface
+ *
+ * Return the specified interface descriptor for the specified device.
+ */
+struct usb_interface_instance *usbd_device_interface_instance (struct usb_device_instance *device, int port, int configuration, int interface)
+{
+	struct usb_configuration_instance *configuration_instance;
+
+	if ((configuration_instance = usbd_device_configuration_instance (device, port, configuration)) == NULL) {
+		return NULL;
+	}
+	if (interface >= configuration_instance->interfaces) {
+		return NULL;
+	}
+	return configuration_instance->interface_instance_array + interface;
+}
+
+/* *
+ * usbd_device_alternate_descriptor_list
+ * @device:
+ * @configuration: index to configuration, 0 - N-1
+ * @interface: index to interface
+ * @alternate: alternate setting
+ *
+ * Return the specified alternate descriptor for the specified device.
+ */
+struct usb_alternate_instance *usbd_device_alternate_instance (struct usb_device_instance *device, int port, int configuration, int interface, int alternate)
+{
+	struct usb_interface_instance *interface_instance;
+
+	if ((interface_instance = usbd_device_interface_instance (device, port, configuration, interface)) == NULL) {
+		return NULL;
+	}
+
+	if (alternate >= interface_instance->alternates) {
+		return NULL;
+	}
+
+	return interface_instance->alternates_instance_array + alternate;
+}
+
+
+/* *
+ * usbd_device_device_descriptor
+ * @device: which device
+ * @configuration: index to configuration, 0 - N-1
+ * @port: which port
+ *
+ * Return the specified configuration descriptor for the specified device.
+ */
+struct usb_device_descriptor *usbd_device_device_descriptor (struct usb_device_instance *device, int port)
+{
+	return (device->device_descriptor);
+}
+
+
+/**
+ * usbd_device_configuration_descriptor
+ * @device: which device
+ * @port: which port
+ * @configuration: index to configuration, 0 - N-1
+ *
+ * Return the specified configuration descriptor for the specified device.
+ */
+struct usb_configuration_descriptor *usbd_device_configuration_descriptor (struct
+									   usb_device_instance
+									   *device, int port, int configuration)
+{
+	struct usb_configuration_instance *configuration_instance;
+	if (!(configuration_instance = usbd_device_configuration_instance (device, port, configuration))) {
+		return NULL;
+	}
+	return (configuration_instance->configuration_descriptor);
+}
+
+
+/**
+ * usbd_device_interface_descriptor
+ * @device: which device
+ * @port: which port
+ * @configuration: index to configuration, 0 - N-1
+ * @interface: index to interface
+ * @alternate: alternate setting
+ *
+ * Return the specified interface descriptor for the specified device.
+ */
+struct usb_interface_descriptor *usbd_device_interface_descriptor (struct usb_device_instance
+								   *device, int port, int configuration, int interface, int alternate)
+{
+	struct usb_interface_instance *interface_instance;
+	if (!(interface_instance = usbd_device_interface_instance (device, port, configuration, interface))) {
+		return NULL;
+	}
+	if ((alternate < 0) || (alternate >= interface_instance->alternates)) {
+		return NULL;
+	}
+	return (interface_instance->alternates_instance_array[alternate].interface_descriptor);
+}
+
+/**
+ * usbd_device_endpoint_descriptor_index
+ * @device: which device
+ * @port: which port
+ * @configuration: index to configuration, 0 - N-1
+ * @interface: index to interface
+ * @alternate: index setting
+ * @index: which index
+ *
+ * Return the specified endpoint descriptor for the specified device.
+ */
+struct usb_endpoint_descriptor *usbd_device_endpoint_descriptor_index (struct usb_device_instance
+								       *device, int port, int configuration, int interface, int alternate, int index)
+{
+	struct usb_alternate_instance *alternate_instance;
+
+	if (!(alternate_instance = usbd_device_alternate_instance (device, port, configuration, interface, alternate))) {
+		return NULL;
+	}
+	if (index >= alternate_instance->endpoints) {
+		return NULL;
+	}
+	return *(alternate_instance->endpoints_descriptor_array + index);
+}
+
+
+/**
+ * usbd_device_endpoint_transfersize
+ * @device: which device
+ * @port: which port
+ * @configuration: index to configuration, 0 - N-1
+ * @interface: index to interface
+ * @index: which index
+ *
+ * Return the specified endpoint transfer size;
+ */
+int usbd_device_endpoint_transfersize (struct usb_device_instance *device, int port, int configuration, int interface, int alternate, int index)
+{
+	struct usb_alternate_instance *alternate_instance;
+
+	if (!(alternate_instance = usbd_device_alternate_instance (device, port, configuration, interface, alternate))) {
+		return 0;
+	}
+	if (index >= alternate_instance->endpoints) {
+		return 0;
+	}
+	return *(alternate_instance->endpoint_transfersize_array + index);
+}
+
+
+/**
+ * usbd_device_endpoint_descriptor
+ * @device: which device
+ * @port: which port
+ * @configuration: index to configuration, 0 - N-1
+ * @interface: index to interface
+ * @alternate: alternate setting
+ * @endpoint: which endpoint
+ *
+ * Return the specified endpoint descriptor for the specified device.
+ */
+struct usb_endpoint_descriptor *usbd_device_endpoint_descriptor (struct usb_device_instance *device, int port, int configuration, int interface, int alternate, int endpoint)
+{
+	struct usb_endpoint_descriptor *endpoint_descriptor;
+	int i;
+
+	for (i = 0; !(endpoint_descriptor = usbd_device_endpoint_descriptor_index (device, port, configuration, interface, alternate, i)); i++) {
+		if (endpoint_descriptor->bEndpointAddress == endpoint) {
+			return endpoint_descriptor;
+		}
+	}
+	return NULL;
+}
+
+/**
+ * usbd_endpoint_halted
+ * @device: point to struct usb_device_instance
+ * @endpoint: endpoint to check
+ *
+ * Return non-zero if endpoint is halted.
+ */
+int usbd_endpoint_halted (struct usb_device_instance *device, int endpoint)
+{
+	return (device->status == USB_STATUS_HALT);
+}
+
+
+/**
+ * usbd_rcv_complete - complete a receive
+ * @endpoint:
+ * @len:
+ * @urb_bad:
+ *
+ * Called from rcv interrupt to complete.
+ */
+void usbd_rcv_complete(struct usb_endpoint_instance *endpoint, int len, int urb_bad)
+{
+	if (endpoint) {
+		struct urb *rcv_urb;
+
+		/*usbdbg("len: %d urb: %p\n", len, endpoint->rcv_urb); */
+
+		/* if we had an urb then update actual_length, dispatch if neccessary */
+		if ((rcv_urb = endpoint->rcv_urb)) {
+
+			/*usbdbg("actual: %d buffer: %d\n", */
+			/*rcv_urb->actual_length, rcv_urb->buffer_length); */
+
+			/* check the urb is ok, are we adding data less than the packetsize */
+			if (!urb_bad && (len <= endpoint->rcv_packetSize)) {
+			  /*usbdbg("updating actual_length by %d\n",len); */
+
+				/* increment the received data size */
+				rcv_urb->actual_length += len;
+
+			} else {
+				usberr(" RECV_ERROR actual: %d buffer: %d urb_bad: %d\n",
+				       rcv_urb->actual_length, rcv_urb->buffer_length, urb_bad);
+
+				rcv_urb->actual_length = 0;
+				rcv_urb->status = RECV_ERROR;
+			}
+		} else {
+			usberr("no rcv_urb!");
+		}
+	} else {
+		usberr("no endpoint!");
+	}
+
+}
+
+/**
+ * usbd_tx_complete - complete a transmit
+ * @endpoint:
+ * @resetart:
+ *
+ * Called from tx interrupt to complete.
+ */
+void usbd_tx_complete (struct usb_endpoint_instance *endpoint)
+{
+	if (endpoint) {
+		struct urb *tx_urb;
+
+		/* if we have a tx_urb advance or reset, finish if complete */
+		if ((tx_urb = endpoint->tx_urb)) {
+			int sent = endpoint->last;
+			endpoint->sent += sent;
+			endpoint->last -= sent;
+
+			if( (endpoint->tx_urb->actual_length - endpoint->sent) <= 0 ) {
+				tx_urb->actual_length = 0;
+				endpoint->sent = 0;
+				endpoint->last = 0;
+
+				/* Remove from active, save for re-use */
+				urb_detach(tx_urb);
+				urb_append(&endpoint->done, tx_urb);
+				/*usbdbg("done->next %p, tx_urb %p, done %p", */
+				/*	 endpoint->done.next, tx_urb, &endpoint->done); */
+
+				endpoint->tx_urb = first_urb_detached(&endpoint->tx);
+				if( endpoint->tx_urb ) {
+					endpoint->tx_queue--;
+					usbdbg("got urb from tx list");
+				}
+				if( !endpoint->tx_urb ) {
+					/*usbdbg("taking urb from done list"); */
+					endpoint->tx_urb = first_urb_detached(&endpoint->done);
+				}
+				if( !endpoint->tx_urb ) {
+					usbdbg("allocating new urb for tx_urb");
+					endpoint->tx_urb = usbd_alloc_urb(tx_urb->device, endpoint);
+				}
+			}
+		}
+	}
+}
+
+/* URB linked list functions ***************************************************** */
+
+/*
+ * Initialize an urb_link to be a single element list.
+ * If the urb_link is being used as a distinguished list head
+ * the list is empty when the head is the only link in the list.
+ */
+void urb_link_init (urb_link * ul)
+{
+	if (ul) {
+		ul->prev = ul->next = ul;
+	}
+}
+
+/*
+ * Detach an urb_link from a list, and set it
+ * up as a single element list, so no dangling
+ * pointers can be followed, and so it can be
+ * joined to another list if so desired.
+ */
+void urb_detach (struct urb *urb)
+{
+	if (urb) {
+		urb_link *ul = &urb->link;
+		ul->next->prev = ul->prev;
+		ul->prev->next = ul->next;
+		urb_link_init (ul);
+	}
+}
+
+/*
+ * Return the first urb_link in a list with a distinguished
+ * head "hd", or NULL if the list is empty.  This will also
+ * work as a predicate, returning NULL if empty, and non-NULL
+ * otherwise.
+ */
+urb_link *first_urb_link (urb_link * hd)
+{
+	urb_link *nx;
+	if (NULL != hd && NULL != (nx = hd->next) && nx != hd) {
+		/* There is at least one element in the list */
+		/* (besides the distinguished head). */
+		return (nx);
+	}
+	/* The list is empty */
+	return (NULL);
+}
+
+/*
+ * Return the first urb in a list with a distinguished
+ * head "hd", or NULL if the list is empty.
+ */
+struct urb *first_urb (urb_link * hd)
+{
+	urb_link *nx;
+	if (NULL == (nx = first_urb_link (hd))) {
+		/* The list is empty */
+		return (NULL);
+	}
+	return (p2surround (struct urb, link, nx));
+}
+
+/*
+ * Detach and return the first urb in a list with a distinguished
+ * head "hd", or NULL if the list is empty.
+ *
+ */
+struct urb *first_urb_detached (urb_link * hd)
+{
+	struct urb *urb;
+	if ((urb = first_urb (hd))) {
+		urb_detach (urb);
+	}
+	return urb;
+}
+
+
+/*
+ * Append an urb_link (or a whole list of
+ * urb_links) to the tail of another list
+ * of urb_links.
+ */
+void urb_append (urb_link * hd, struct urb *urb)
+{
+	if (hd && urb) {
+		urb_link *new = &urb->link;
+
+		/* This allows the new urb to be a list of urbs, */
+		/* with new pointing at the first, but the link */
+		/* must be initialized. */
+		/* Order is important here... */
+		urb_link *pul = hd->prev;
+		new->prev->next = hd;
+		hd->prev = new->prev;
+		new->prev = pul;
+		pul->next = new;
+	}
+}
+
+/* URB create/destroy functions ***************************************************** */
+
+/**
+ * usbd_alloc_urb - allocate an URB appropriate for specified endpoint
+ * @device: device instance
+ * @endpoint: endpoint
+ *
+ * Allocate an urb structure. The usb device urb structure is used to
+ * contain all data associated with a transfer, including a setup packet for
+ * control transfers.
+ *
+ * NOTE: endpoint_address MUST contain a direction flag.
+ */
+struct urb *usbd_alloc_urb (struct usb_device_instance *device, struct usb_endpoint_instance *endpoint)
+{
+	struct urb *urb;
+
+	if( !(urb = (struct urb*)malloc(sizeof(struct urb))) ) {
+	  usberr(" F A T A L:  malloc(%u) FAILED!!!!", sizeof(struct urb));
+	  return NULL;
+	}
+
+	/* Fill in known fields */
+	memset(urb, 0, sizeof(struct urb));
+	urb->endpoint = endpoint;
+	urb->device = device;
+	urb->buffer = (u8*)urb->buffer_data;
+	urb->buffer_length = sizeof(urb->buffer_data);
+
+	urb_link_init (&urb->link);
+
+	return urb;
+}
+
+/**
+ * usbd_dealloc_urb - deallocate an URB and associated buffer
+ * @urb: pointer to an urb structure
+ *
+ * Deallocate an urb structure and associated data.
+ */
+void usbd_dealloc_urb (struct urb *urb)
+{
+	if (urb) {
+		free (urb);
+	}
+}
+
+/* Event signaling functions ***************************************************** */
+
+/**
+ * usbd_device_event - called to respond to various usb events
+ * @device: pointer to struct device
+ * @event: event to respond to
+ *
+ * Used by a Bus driver to indicate an event.
+ */
+void usbd_device_event_irq (struct usb_device_instance *device, usb_device_event_t event, int data)
+{
+	usb_device_state_t state;
+
+	if (!device || !device->bus) {
+		usberr("(%p,%d) NULL device or device->bus", device, event);
+		return;
+	}
+
+	state = device->device_state;
+
+	usbinfo("%s", usbd_device_events[event]);
+
+	switch (event) {
+	case DEVICE_UNKNOWN:
+		break;
+	case DEVICE_INIT:
+		device->device_state = STATE_INIT;
+		break;
+
+	case DEVICE_CREATE:
+		device->device_state = STATE_ATTACHED;
+		break;
+
+	case DEVICE_HUB_CONFIGURED:
+		device->device_state = STATE_POWERED;
+		break;
+
+	case DEVICE_RESET:
+		device->device_state = STATE_DEFAULT;
+		device->address = 0;
+		break;
+
+	case DEVICE_ADDRESS_ASSIGNED:
+		device->device_state = STATE_ADDRESSED;
+		break;
+
+	case DEVICE_CONFIGURED:
+		device->device_state = STATE_CONFIGURED;
+		break;
+
+	case DEVICE_DE_CONFIGURED:
+		device->device_state = STATE_ADDRESSED;
+		break;
+
+	case DEVICE_BUS_INACTIVE:
+		if (device->status != USBD_CLOSING) {
+			device->status = USBD_SUSPENDED;
+		}
+		break;
+	case DEVICE_BUS_ACTIVITY:
+		if (device->status != USBD_CLOSING) {
+			device->status = USBD_OK;
+		}
+		break;
+
+	case DEVICE_SET_INTERFACE:
+		break;
+	case DEVICE_SET_FEATURE:
+		break;
+	case DEVICE_CLEAR_FEATURE:
+		break;
+
+	case DEVICE_POWER_INTERRUPTION:
+		device->device_state = STATE_POWERED;
+		break;
+	case DEVICE_HUB_RESET:
+		device->device_state = STATE_ATTACHED;
+		break;
+	case DEVICE_DESTROY:
+		device->device_state = STATE_UNKNOWN;
+		break;
+
+	case DEVICE_FUNCTION_PRIVATE:
+		break;
+
+	default:
+		usbdbg("event %d - not handled",event);
+		break;
+	}
+	/*usbdbg("%s event: %d oldstate: %d newstate: %d status: %d address: %d",
+		device->name, event, state,
+		device->device_state, device->status, device->address); */
+
+	/* tell the bus interface driver */
+	if( device->event ) {
+		/* usbdbg("calling device->event"); */
+		device->event(device, event, data);
+	}
+}
diff --git a/drivers/usbdcore_ep0.c b/drivers/usbdcore_ep0.c
new file mode 100644
index 0000000..260befe
--- /dev/null
+++ b/drivers/usbdcore_ep0.c
@@ -0,0 +1,686 @@
+/*
+ * (C) Copyright 2003
+ * Gerry Hamel, geh@ti.com, Texas Instruments
+ *
+ * Based on
+ * linux/drivers/usbd/ep0.c
+ *
+ * Copyright (c) 2000, 2001, 2002 Lineo
+ * Copyright (c) 2001 Hewlett Packard
+ *
+ * By:
+ *	Stuart Lynne <sl@lineo.com>,
+ *	Tom Rushworth <tbr@lineo.com>,
+ *	Bruce Balden <balden@lineo.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/*
+ * This is the builtin ep0 control function. It implements all required functionality
+ * for responding to control requests (SETUP packets).
+ *
+ * XXX
+ *
+ * Currently we do not pass any SETUP packets (or other) to the configured
+ * function driver. This may need to change.
+ *
+ * XXX
+ */
+
+#include <common.h>
+
+#if defined(CONFIG_OMAP1510) && defined(CONFIG_USB_DEVICE)
+#include "usbdcore.h"
+
+#if 0
+#define dbg_ep0(lvl,fmt,args...) serial_printf("[%s] %s:%d: "fmt"\n",__FILE__,__FUNCTION__,__LINE__,##args)
+#else
+#define dbg_ep0(lvl,fmt,args...)
+#endif
+
+/* EP0 Configuration Set ********************************************************************* */
+
+
+/**
+ * ep0_get_status - fill in URB data with appropriate status
+ * @device:
+ * @urb:
+ * @index:
+ * @requesttype:
+ *
+ */
+static int ep0_get_status (struct usb_device_instance *device,
+			   struct urb *urb, int index, int requesttype)
+{
+	char *cp;
+
+	urb->actual_length = 2;
+	cp = urb->buffer;
+	cp[0] = cp[1] = 0;
+
+	switch (requesttype) {
+	case USB_REQ_RECIPIENT_DEVICE:
+		cp[0] = USB_STATUS_SELFPOWERED;
+		break;
+	case USB_REQ_RECIPIENT_INTERFACE:
+		break;
+	case USB_REQ_RECIPIENT_ENDPOINT:
+		cp[0] = usbd_endpoint_halted (device, index);
+		break;
+	case USB_REQ_RECIPIENT_OTHER:
+		urb->actual_length = 0;
+	default:
+		break;
+	}
+	dbg_ep0 (2, "%02x %02x", cp[0], cp[1]);
+	return 0;
+}
+
+/**
+ * ep0_get_one
+ * @device:
+ * @urb:
+ * @result:
+ *
+ * Set a single byte value in the urb send buffer. Return non-zero to signal
+ * a request error.
+ */
+static int ep0_get_one (struct usb_device_instance *device, struct urb *urb,
+			__u8 result)
+{
+	urb->actual_length = 1;	/* XXX 2? */
+	((char *) urb->buffer)[0] = result;
+	return 0;
+}
+
+/**
+ * copy_config
+ * @urb: pointer to urb
+ * @data: pointer to configuration data
+ * @length: length of data
+ *
+ * Copy configuration data to urb transfer buffer if there is room for it.
+ */
+static void copy_config (struct urb *urb, void *data, int max_length,
+			 int max_buf)
+{
+	int available;
+	int length;
+
+	/*dbg_ep0(3, "-> actual: %d buf: %d max_buf: %d max_length: %d data: %p", */
+	/*        urb->actual_length, urb->buffer_length, max_buf, max_length, data); */
+
+	if (!data) {
+		dbg_ep0 (1, "data is NULL");
+		return;
+	}
+	if (!(length = *(unsigned char *) data)) {
+		dbg_ep0 (1, "length is zero");
+		return;
+	}
+
+	if (length > max_length) {
+		dbg_ep0 (1, "length: %d >= max_length: %d", length,
+			 max_length);
+		return;
+	}
+	/*dbg_ep0(1, "   actual: %d buf: %d max_buf: %d max_length: %d length: %d", */
+	/*        urb->actual_length, urb->buffer_length, max_buf, max_length, length); */
+
+	if ((available =
+	     /*urb->buffer_length */ max_buf - urb->actual_length) <= 0) {
+		return;
+	}
+	/*dbg_ep0(1, "actual: %d buf: %d max_buf: %d length: %d available: %d", */
+	/*        urb->actual_length, urb->buffer_length, max_buf, length, available); */
+
+	if (length > available) {
+		length = available;
+	}
+	/*dbg_ep0(1, "actual: %d buf: %d max_buf: %d length: %d available: %d", */
+	/*        urb->actual_length, urb->buffer_length, max_buf, length, available); */
+
+	memcpy (urb->buffer + urb->actual_length, data, length);
+	urb->actual_length += length;
+
+	dbg_ep0 (3,
+		 "copy_config: <- actual: %d buf: %d max_buf: %d max_length: %d available: %d",
+		 urb->actual_length, urb->buffer_length, max_buf, max_length,
+		 available);
+}
+
+/**
+ * ep0_get_descriptor
+ * @device:
+ * @urb:
+ * @max:
+ * @descriptor_type:
+ * @index:
+ *
+ * Called by ep0_rx_process for a get descriptor device command. Determine what
+ * descriptor is being requested, copy to send buffer. Return zero if ok to send,
+ * return non-zero to signal a request error.
+ */
+static int ep0_get_descriptor (struct usb_device_instance *device,
+			       struct urb *urb, int max, int descriptor_type,
+			       int index)
+{
+	int port = 0;		/* XXX compound device */
+	char *cp;
+
+	/*dbg_ep0(3, "max: %x type: %x index: %x", max, descriptor_type, index); */
+
+	if (!urb || !urb->buffer || !urb->buffer_length
+	    || (urb->buffer_length < 255)) {
+		dbg_ep0 (2, "invalid urb %p", urb);
+		return -1L;
+	}
+
+	/* setup tx urb */
+	urb->actual_length = 0;
+	cp = urb->buffer;
+
+	dbg_ep0 (2, "%s", USBD_DEVICE_DESCRIPTORS (descriptor_type));
+
+	switch (descriptor_type) {
+	case USB_DESCRIPTOR_TYPE_DEVICE:
+		{
+			struct usb_device_descriptor *device_descriptor;
+
+			if (!
+			    (device_descriptor =
+			     usbd_device_device_descriptor (device, port))) {
+				return -1;
+			}
+			/* copy descriptor for this device */
+			copy_config (urb, device_descriptor,
+				     sizeof (struct usb_device_descriptor),
+				     max);
+
+			/* correct the correct control endpoint 0 max packet size into the descriptor */
+			device_descriptor =
+				(struct usb_device_descriptor *) urb->buffer;
+			device_descriptor->bMaxPacketSize0 =
+				urb->device->bus->maxpacketsize;
+
+		}
+		/*dbg_ep0(3, "copied device configuration, actual_length: %x", urb->actual_length); */
+		break;
+
+	case USB_DESCRIPTOR_TYPE_CONFIGURATION:
+		{
+			int bNumInterface;
+			struct usb_configuration_descriptor
+				*configuration_descriptor;
+			struct usb_device_descriptor *device_descriptor;
+
+			if (!
+			    (device_descriptor =
+			     usbd_device_device_descriptor (device, port))) {
+				return -1;
+			}
+			/*dbg_ep0(2, "%d %d", index, device_descriptor->bNumConfigurations); */
+			if (index > device_descriptor->bNumConfigurations) {
+				dbg_ep0 (0, "index too large: %d > %d", index,
+					 device_descriptor->
+					 bNumConfigurations);
+				return -1;
+			}
+
+			if (!
+			    (configuration_descriptor =
+			     usbd_device_configuration_descriptor (device,
+								   port,
+								   index))) {
+				dbg_ep0 (0,
+					 "usbd_device_configuration_descriptor failed: %d",
+					 index);
+				return -1;
+			}
+			copy_config (urb, configuration_descriptor,
+				     sizeof (struct
+					     usb_configuration_descriptor),
+				     max);
+
+
+			/* iterate across interfaces for specified configuration */
+			dbg_ep0 (0, "bNumInterfaces: %d",
+				 configuration_descriptor->bNumInterfaces);
+			for (bNumInterface = 0;
+			     bNumInterface <
+			     configuration_descriptor->bNumInterfaces;
+			     bNumInterface++) {
+
+				int bAlternateSetting;
+				struct usb_interface_instance
+					*interface_instance;
+
+				dbg_ep0 (3, "[%d] bNumInterfaces: %d",
+					 bNumInterface,
+					 configuration_descriptor->bNumInterfaces);
+
+				if (! (interface_instance = usbd_device_interface_instance (device,
+								     port, index, bNumInterface)))
+				{
+					dbg_ep0 (3, "[%d] interface_instance NULL",
+						 bNumInterface);
+					return -1;
+				}
+				/* iterate across interface alternates */
+				for (bAlternateSetting = 0;
+				     bAlternateSetting < interface_instance->alternates;
+				     bAlternateSetting++) {
+					/*int class; */
+					int bNumEndpoint;
+					struct usb_interface_descriptor *interface_descriptor;
+
+					struct usb_alternate_instance *alternate_instance;
+
+					dbg_ep0 (3, "[%d:%d] alternates: %d",
+						 bNumInterface,
+						 bAlternateSetting,
+						 interface_instance->alternates);
+
+					if (! (alternate_instance = usbd_device_alternate_instance (device, port, index, bNumInterface, bAlternateSetting))) {
+						dbg_ep0 (3, "[%d] alternate_instance NULL",
+							 bNumInterface);
+						return -1;
+					}
+					/* copy descriptor for this interface */
+					copy_config (urb, alternate_instance->interface_descriptor,
+						     sizeof (struct usb_interface_descriptor),
+						     max);
+
+					/*dbg_ep0(3, "[%d:%d] classes: %d endpoints: %d", bNumInterface, bAlternateSetting, */
+					/*        alternate_instance->classes, alternate_instance->endpoints); */
+
+					/* iterate across classes for this alternate interface */
+#if 0
+					for (class = 0;
+					     class < alternate_instance->classes;
+					     class++) {
+						struct usb_class_descriptor *class_descriptor;
+						/*dbg_ep0(3, "[%d:%d:%d] classes: %d", bNumInterface, bAlternateSetting, */
+						/*        class, alternate_instance->classes); */
+						if (!(class_descriptor = usbd_device_class_descriptor_index (device, port, index, bNumInterface, bAlternateSetting, class))) {
+							dbg_ep0 (3, "[%d] class NULL",
+								 class);
+							return -1;
+						}
+						/* copy descriptor for this class */
+						copy_config (urb, class_descriptor,
+							sizeof (struct usb_class_descriptor),
+							max);
+					}
+#endif
+
+					/* iterate across endpoints for this alternate interface */
+					interface_descriptor = alternate_instance->interface_descriptor;
+					for (bNumEndpoint = 0;
+					     bNumEndpoint < alternate_instance->endpoints;
+					     bNumEndpoint++) {
+						struct usb_endpoint_descriptor *endpoint_descriptor;
+						dbg_ep0 (3, "[%d:%d:%d] endpoint: %d",
+							 bNumInterface,
+							 bAlternateSetting,
+							 bNumEndpoint,
+							 interface_descriptor->
+							 bNumEndpoints);
+						if (!(endpoint_descriptor = usbd_device_endpoint_descriptor_index (device, port, index, bNumInterface, bAlternateSetting, bNumEndpoint))) {
+							dbg_ep0 (3, "[%d] endpoint NULL",
+								 bNumEndpoint);
+							return -1;
+						}
+						/* copy descriptor for this endpoint */
+						copy_config (urb, endpoint_descriptor,
+							     sizeof (struct usb_endpoint_descriptor),
+							     max);
+					}
+				}
+			}
+			dbg_ep0 (3, "lengths: %d %d",
+				 le16_to_cpu (configuration_descriptor->wTotalLength),
+				 urb->actual_length);
+		}
+		break;
+
+	case USB_DESCRIPTOR_TYPE_STRING:
+		{
+			struct usb_string_descriptor *string_descriptor;
+
+			if (!(string_descriptor = usbd_get_string (index))) {
+				return -1;
+			}
+			/*dbg_ep0(3, "string_descriptor: %p", string_descriptor); */
+			copy_config (urb, string_descriptor, string_descriptor->bLength, max);
+		}
+		break;
+	case USB_DESCRIPTOR_TYPE_INTERFACE:
+		return -1;
+	case USB_DESCRIPTOR_TYPE_ENDPOINT:
+		return -1;
+	case USB_DESCRIPTOR_TYPE_HID:
+		{
+			return -1;	/* unsupported at this time */
+#if 0
+			int bNumInterface =
+				le16_to_cpu (urb->device_request.wIndex);
+			int bAlternateSetting = 0;
+			int class = 0;
+			struct usb_class_descriptor *class_descriptor;
+
+			if (!(class_descriptor =
+			      usbd_device_class_descriptor_index (device,
+								  port, 0,
+								  bNumInterface,
+								  bAlternateSetting,
+								  class))
+			    || class_descriptor->descriptor.hid.bDescriptorType != USB_DT_HID) {
+				dbg_ep0 (3, "[%d] interface is not HID",
+					 bNumInterface);
+				return -1;
+			}
+			/* copy descriptor for this class */
+			copy_config (urb, class_descriptor,
+				     class_descriptor->descriptor.hid.bLength,
+				     max);
+#endif
+		}
+		break;
+	case USB_DESCRIPTOR_TYPE_REPORT:
+		{
+			return -1;	/* unsupported at this time */
+#if 0
+			int bNumInterface =
+				le16_to_cpu (urb->device_request.wIndex);
+			int bAlternateSetting = 0;
+			int class = 0;
+			struct usb_class_report_descriptor *report_descriptor;
+
+			if (!(report_descriptor =
+			      usbd_device_class_report_descriptor_index
+			      (device, port, 0, bNumInterface,
+			       bAlternateSetting, class))
+			    || report_descriptor->bDescriptorType !=
+			    USB_DT_REPORT) {
+				dbg_ep0 (3, "[%d] descriptor is not REPORT",
+					 bNumInterface);
+				return -1;
+			}
+			/* copy report descriptor for this class */
+			/*copy_config(urb, &report_descriptor->bData[0], report_descriptor->wLength, max); */
+			if (max - urb->actual_length > 0) {
+				int length =
+					MIN (report_descriptor->wLength,
+					     max - urb->actual_length);
+				memcpy (urb->buffer + urb->actual_length,
+					&report_descriptor->bData[0], length);
+				urb->actual_length += length;
+			}
+#endif
+		}
+		break;
+	default:
+		return -1;
+	}
+
+
+	dbg_ep0 (1, "urb: buffer: %p buffer_length: %2d actual_length: %2d packet size: %2d",
+		 urb->buffer, urb->buffer_length, urb->actual_length,
+		 device->bus->endpoint_array[0].tx_packetSize);
+/*
+    if ((urb->actual_length < max) && !(urb->actual_length % device->bus->endpoint_array[0].tx_packetSize)) {
+	dbg_ep0(0, "adding null byte");
+	urb->buffer[urb->actual_length++] = 0;
+	dbg_ep0(0, "urb: buffer_length: %2d actual_length: %2d packet size: %2d",
+		urb->buffer_length, urb->actual_length device->bus->endpoint_array[0].tx_packetSize);
+    }
+*/
+	return 0;
+
+}
+
+/**
+ * ep0_recv_setup - called to indicate URB has been received
+ * @urb: pointer to struct urb
+ *
+ * Check if this is a setup packet, process the device request, put results
+ * back into the urb and return zero or non-zero to indicate success (DATA)
+ * or failure (STALL).
+ *
+ */
+int ep0_recv_setup (struct urb *urb)
+{
+	/*struct usb_device_request *request = urb->buffer; */
+	/*struct usb_device_instance *device = urb->device; */
+
+	struct usb_device_request *request;
+	struct usb_device_instance *device;
+	int address;
+
+	dbg_ep0 (0, "entering ep0_recv_setup()");
+	if (!urb || !urb->device) {
+		dbg_ep0 (3, "invalid URB %p", urb);
+		return -1;
+	}
+
+	request = &urb->device_request;
+	device = urb->device;
+
+	dbg_ep0 (3, "urb: %p device: %p", urb, urb->device);
+
+
+	/*dbg_ep0(2, "-       -       -       -       -       -       -       -       -       -"); */
+
+	dbg_ep0 (2,
+		 "bmRequestType:%02x bRequest:%02x wValue:%04x wIndex:%04x wLength:%04x %s",
+		 request->bmRequestType, request->bRequest,
+		 le16_to_cpu (request->wValue), le16_to_cpu (request->wIndex),
+		 le16_to_cpu (request->wLength),
+		 USBD_DEVICE_REQUESTS (request->bRequest));
+
+	/* handle USB Standard Request (c.f. USB Spec table 9-2) */
+	if ((request->bmRequestType & USB_REQ_TYPE_MASK) != 0) {
+		dbg_ep0 (1, "non standard request: %x",
+			 request->bmRequestType & USB_REQ_TYPE_MASK);
+		return -1;	/* Stall here */
+	}
+
+	switch (device->device_state) {
+	case STATE_CREATED:
+	case STATE_ATTACHED:
+	case STATE_POWERED:
+		/* It actually is important to allow requests in these states,
+		 * Windows will request descriptors before assigning an
+		 * address to the client.
+		 */
+
+		/*dbg_ep0 (1, "request %s not allowed in this state: %s", */
+		/*                USBD_DEVICE_REQUESTS(request->bRequest), */
+		/*                usbd_device_states[device->device_state]); */
+		/*return -1; */
+		break;
+
+	case STATE_INIT:
+	case STATE_DEFAULT:
+		switch (request->bRequest) {
+		case USB_REQ_GET_STATUS:
+		case USB_REQ_GET_INTERFACE:
+		case USB_REQ_SYNCH_FRAME:	/* XXX should never see this (?) */
+		case USB_REQ_CLEAR_FEATURE:
+		case USB_REQ_SET_FEATURE:
+		case USB_REQ_SET_DESCRIPTOR:
+			/* case USB_REQ_SET_CONFIGURATION: */
+		case USB_REQ_SET_INTERFACE:
+			dbg_ep0 (1,
+				 "request %s not allowed in DEFAULT state: %s",
+				 USBD_DEVICE_REQUESTS (request->bRequest),
+				 usbd_device_states[device->device_state]);
+			return -1;
+
+		case USB_REQ_SET_CONFIGURATION:
+		case USB_REQ_SET_ADDRESS:
+		case USB_REQ_GET_DESCRIPTOR:
+		case USB_REQ_GET_CONFIGURATION:
+			break;
+		}
+	case STATE_ADDRESSED:
+	case STATE_CONFIGURED:
+		break;
+	case STATE_UNKNOWN:
+		dbg_ep0 (1, "request %s not allowed in UNKNOWN state: %s",
+			 USBD_DEVICE_REQUESTS (request->bRequest),
+			 usbd_device_states[device->device_state]);
+		return -1;
+	}
+
+	/* handle all requests that return data (direction bit set on bm RequestType) */
+	if ((request->bmRequestType & USB_REQ_DIRECTION_MASK)) {
+
+		dbg_ep0 (3, "Device-to-Host");
+
+		switch (request->bRequest) {
+
+		case USB_REQ_GET_STATUS:
+			return ep0_get_status (device, urb, request->wIndex,
+					       request->bmRequestType &
+					       USB_REQ_RECIPIENT_MASK);
+
+		case USB_REQ_GET_DESCRIPTOR:
+			return ep0_get_descriptor (device, urb,
+						   le16_to_cpu (request->wLength),
+						   le16_to_cpu (request->wValue) >> 8,
+						   le16_to_cpu (request->wValue) & 0xff);
+
+		case USB_REQ_GET_CONFIGURATION:
+			return ep0_get_one (device, urb,
+					    device->configuration);
+
+		case USB_REQ_GET_INTERFACE:
+			return ep0_get_one (device, urb, device->alternate);
+
+		case USB_REQ_SYNCH_FRAME:	/* XXX should never see this (?) */
+			return -1;
+
+		case USB_REQ_CLEAR_FEATURE:
+		case USB_REQ_SET_FEATURE:
+		case USB_REQ_SET_ADDRESS:
+		case USB_REQ_SET_DESCRIPTOR:
+		case USB_REQ_SET_CONFIGURATION:
+		case USB_REQ_SET_INTERFACE:
+			return -1;
+		}
+	}
+	/* handle the requests that do not return data */
+	else {
+
+
+		/*dbg_ep0(3, "Host-to-Device"); */
+		switch (request->bRequest) {
+
+		case USB_REQ_CLEAR_FEATURE:
+		case USB_REQ_SET_FEATURE:
+			dbg_ep0 (0, "Host-to-Device");
+			switch (request->
+				bmRequestType & USB_REQ_RECIPIENT_MASK) {
+			case USB_REQ_RECIPIENT_DEVICE:
+				/* XXX DEVICE_REMOTE_WAKEUP or TEST_MODE would be added here */
+				/* XXX fall through for now as we do not support either */
+			case USB_REQ_RECIPIENT_INTERFACE:
+			case USB_REQ_RECIPIENT_OTHER:
+				dbg_ep0 (0, "request %s not",
+					 USBD_DEVICE_REQUESTS (request->bRequest));
+			default:
+				return -1;
+
+			case USB_REQ_RECIPIENT_ENDPOINT:
+				dbg_ep0 (0, "ENDPOINT: %x", le16_to_cpu (request->wValue));
+				if (le16_to_cpu (request->wValue) == USB_ENDPOINT_HALT) {
+					/*return usbd_device_feature (device, le16_to_cpu (request->wIndex), */
+					/*                    request->bRequest == USB_REQ_SET_FEATURE); */
+					/* NEED TO IMPLEMENT THIS!!! */
+					return -1;
+				} else {
+					dbg_ep0 (1, "request %s bad wValue: %04x",
+						 USBD_DEVICE_REQUESTS
+						 (request->bRequest),
+						 le16_to_cpu (request->wValue));
+					return -1;
+				}
+			}
+
+		case USB_REQ_SET_ADDRESS:
+			/* check if this is a re-address, reset first if it is (this shouldn't be possible) */
+			if (device->device_state != STATE_DEFAULT) {
+				dbg_ep0 (1, "set_address: %02x state: %s",
+					 le16_to_cpu (request->wValue),
+					 usbd_device_states[device->device_state]);
+				return -1;
+			}
+			address = le16_to_cpu (request->wValue);
+			if ((address & 0x7f) != address) {
+				dbg_ep0 (1, "invalid address %04x %04x",
+					 address, address & 0x7f);
+				return -1;
+			}
+			device->address = address;
+
+			/*dbg_ep0(2, "address: %d %d %d", */
+			/*        request->wValue, le16_to_cpu(request->wValue), device->address); */
+
+			serial_printf ("DEVICE_ADDRESS_ASSIGNED.. event?\n");
+			return 0;
+
+		case USB_REQ_SET_DESCRIPTOR:	/* XXX should we support this? */
+			dbg_ep0 (0, "set descriptor: NOT SUPPORTED");
+			return -1;
+
+		case USB_REQ_SET_CONFIGURATION:
+			/* c.f. 9.4.7 - the top half of wValue is reserved */
+			/* */
+			if ((device->configuration =
+			     le16_to_cpu (request->wValue) & 0x7f) != 0) {
+				/* c.f. 9.4.7 - zero is the default or addressed state, in our case this */
+				/* is the same is configuration zero */
+				device->configuration = 0;	/* TBR - ?????? */
+			}
+			/* reset interface and alternate settings */
+			device->interface = device->alternate = 0;
+
+			/*dbg_ep0(2, "set configuration: %d", device->configuration); */
+			/*serial_printf("DEVICE_CONFIGURED.. event?\n"); */
+			return 0;
+
+		case USB_REQ_SET_INTERFACE:
+			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");
+			return 0;
+
+		case USB_REQ_GET_STATUS:
+		case USB_REQ_GET_DESCRIPTOR:
+		case USB_REQ_GET_CONFIGURATION:
+		case USB_REQ_GET_INTERFACE:
+		case USB_REQ_SYNCH_FRAME:	/* XXX should never see this (?) */
+			return -1;
+		}
+	}
+	return -1;
+}
+
+#endif
diff --git a/drivers/usbdcore_omap1510.c b/drivers/usbdcore_omap1510.c
new file mode 100644
index 0000000..042f319
--- /dev/null
+++ b/drivers/usbdcore_omap1510.c
@@ -0,0 +1,1494 @@
+/*
+ * (C) Copyright 2003
+ * Gerry Hamel, geh@ti.com, Texas Instruments
+ *
+ * Based on
+ * linux/drivers/usb/device/bi/omap.c
+ * TI OMAP1510 USB bus interface driver
+ *
+ * Author: MontaVista Software, Inc.
+ *	   source@mvista.com
+ *	   (C) Copyright 2002
+ *
+ * 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 <common.h>
+
+#if defined(CONFIG_OMAP1510) && defined(CONFIG_USB_DEVICE)
+
+#include <asm/io.h>
+#include <i2c.h>
+
+#include "usbdcore.h"
+#include "usbdcore_omap1510.h"
+#include "usbdcore_ep0.h"
+
+
+#define UDC_MAX_ENDPOINTS	     31 /* Number of endpoints on this UDC */
+
+/* Some kind of debugging output... */
+#if 1
+#define UDCDBG(str)
+#define UDCDBGA(fmt,args...)
+#else  /* The bugs still exists... */
+#define UDCDBG(str) serial_printf("[%s] %s:%d: " str "\n", __FILE__,__FUNCTION__,__LINE__)
+#define UDCDBGA(fmt,args...) serial_printf("[%s] %s:%d: " fmt "\n", __FILE__,__FUNCTION__,__LINE__, ##args)
+#endif
+
+#if 1
+#define UDCREG(name)
+#define UDCREGL(name)
+#else  /* The bugs still exists... */
+#define UDCREG(name)	 serial_printf("%s():%d: %s[%08x]=%.4x\n",__FUNCTION__,__LINE__, (#name), name, inw(name))	/* For 16-bit regs */
+#define UDCREGL(name)	 serial_printf("%s():%d: %s[%08x]=%.8x\n",__FUNCTION__,__LINE__, (#name), name, inl(name))	/* For 32-bit regs */
+#endif
+
+
+static struct urb *ep0_urb = NULL;
+
+static struct usb_device_instance *udc_device;	/* Used in interrupt handler */
+static u16 udc_devstat = 0;	/* UDC status (DEVSTAT) */
+static u32 udc_interrupts = 0;
+
+static void udc_stall_ep (unsigned int ep_addr);
+
+
+static struct usb_endpoint_instance *omap1510_find_ep (int ep)
+{
+	int i;
+
+	for (i = 0; i < udc_device->bus->max_endpoints; i++) {
+		if (udc_device->bus->endpoint_array[i].endpoint_address == ep)
+			return &udc_device->bus->endpoint_array[i];
+	}
+	return NULL;
+}
+
+/* ************************************************************************** */
+/* IO
+ */
+
+/*
+ * omap1510_prepare_endpoint_for_rx
+ *
+ * This function implements TRM Figure 14-11.
+ *
+ * The endpoint to prepare for transfer is specified as a physical endpoint
+ * number.  For OUT (rx) endpoints 1 through 15, the corresponding endpoint
+ * configuration register is checked to see if the endpoint is ISO or not.
+ * If the OUT endpoint is valid and is non-ISO then its FIFO is enabled.
+ * No action is taken for endpoint 0 or for IN (tx) endpoints 16 through 30.
+ */
+static void omap1510_prepare_endpoint_for_rx (int ep_addr)
+{
+	int ep_num = ep_addr & USB_ENDPOINT_NUMBER_MASK;
+
+	UDCDBGA ("omap1510_prepare_endpoint %x", ep_addr);
+	if (((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT)) {
+		if ((inw (UDC_EP_RX (ep_num)) &
+		     (UDC_EPn_RX_Valid | UDC_EPn_RX_Iso)) ==
+		    UDC_EPn_RX_Valid) {
+			/* rx endpoint is valid, non-ISO, so enable its FIFO */
+			outw (UDC_EP_Sel | ep_num, UDC_EP_NUM);
+			outw (UDC_Set_FIFO_En, UDC_CTRL);
+			outw (0, UDC_EP_NUM);
+		}
+	}
+}
+
+/* omap1510_configure_endpoints
+ *
+ * This function implements TRM Figure 14-10.
+ */
+static void omap1510_configure_endpoints (struct usb_device_instance *device)
+{
+	int ep;
+	struct usb_bus_instance *bus;
+	struct usb_endpoint_instance *endpoint;
+	unsigned short ep_ptr;
+	unsigned short ep_size;
+	unsigned short ep_isoc;
+	unsigned short ep_doublebuffer;
+	int ep_addr;
+	int packet_size;
+	int buffer_size;
+	int attributes;
+
+	bus = device->bus;
+
+	/* There is a dedicated 2048 byte buffer for USB packets that may be
+	 * arbitrarily partitioned among the endpoints on 8-byte boundaries.
+	 * The first 8 bytes are reserved for receiving setup packets on
+	 * endpoint 0.
+	 */
+	ep_ptr = 8;		/* reserve the first 8 bytes for the setup fifo */
+
+	for (ep = 0; ep < bus->max_endpoints; ep++) {
+		endpoint = bus->endpoint_array + ep;
+		ep_addr = endpoint->endpoint_address;
+		if ((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) {
+			/* IN endpoint */
+			packet_size = endpoint->tx_packetSize;
+			attributes = endpoint->tx_attributes;
+		} else {
+			/* OUT endpoint */
+			packet_size = endpoint->rcv_packetSize;
+			attributes = endpoint->rcv_attributes;
+		}
+
+		switch (packet_size) {
+		case 0:
+			ep_size = 0;
+			break;
+		case 8:
+			ep_size = 0;
+			break;
+		case 16:
+			ep_size = 1;
+			break;
+		case 32:
+			ep_size = 2;
+			break;
+		case 64:
+			ep_size = 3;
+			break;
+		case 128:
+			ep_size = 4;
+			break;
+		case 256:
+			ep_size = 5;
+			break;
+		case 512:
+			ep_size = 6;
+			break;
+		default:
+			UDCDBGA ("ep 0x%02x has bad packet size %d",
+				 ep_addr, packet_size);
+			packet_size = 0;
+			ep_size = 0;
+			break;
+		}
+
+		switch (attributes & USB_ENDPOINT_XFERTYPE_MASK) {
+		case USB_ENDPOINT_XFER_CONTROL:
+		case USB_ENDPOINT_XFER_BULK:
+		case USB_ENDPOINT_XFER_INT:
+		default:
+			/* A non-isochronous endpoint may optionally be
+			 * double-buffered. For now we disable
+			 * double-buffering.
+			 */
+			ep_doublebuffer = 0;
+			ep_isoc = 0;
+			if (packet_size > 64)
+				packet_size = 0;
+			if (!ep || !ep_doublebuffer)
+				buffer_size = packet_size;
+			else
+				buffer_size = packet_size * 2;
+			break;
+		case USB_ENDPOINT_XFER_ISOC:
+			/* Isochronous endpoints are always double-
+			 * buffered, but the double-buffering bit
+			 * in the endpoint configuration register
+			 * becomes the msb of the endpoint size so we
+			 * set the double-buffering flag to zero.
+			 */
+			ep_doublebuffer = 0;
+			ep_isoc = 1;
+			buffer_size = packet_size * 2;
+			break;
+		}
+
+		/* check to see if our packet buffer RAM is exhausted */
+		if ((ep_ptr + buffer_size) > 2048) {
+			UDCDBGA ("out of packet RAM for ep 0x%02x buf size %d", ep_addr, buffer_size);
+			buffer_size = packet_size = 0;
+		}
+
+		/* force a default configuration for endpoint 0 since it is
+		 * always enabled
+		 */
+		if (!ep && ((packet_size < 8) || (packet_size > 64))) {
+			buffer_size = packet_size = 64;
+			ep_size = 3;
+		}
+
+		if (!ep) {
+			/* configure endpoint 0 */
+			outw ((ep_size << 12) | (ep_ptr >> 3), UDC_EP0);
+			/*UDCDBGA("ep 0 buffer offset 0x%03x packet size 0x%03x", */
+			/*	ep_ptr, packet_size); */
+		} else if ((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) {
+			/* IN endpoint */
+			if (packet_size) {
+				outw ((1 << 15) | (ep_doublebuffer << 14) |
+				      (ep_size << 12) | (ep_isoc << 11) |
+				      (ep_ptr >> 3),
+				      UDC_EP_TX (ep_addr &
+						 USB_ENDPOINT_NUMBER_MASK));
+				UDCDBGA ("IN ep %d buffer offset 0x%03x"
+					 " packet size 0x%03x",
+					 ep_addr & USB_ENDPOINT_NUMBER_MASK,
+					 ep_ptr, packet_size);
+			} else {
+				outw (0,
+				      UDC_EP_TX (ep_addr &
+						 USB_ENDPOINT_NUMBER_MASK));
+			}
+		} else {
+			/* OUT endpoint */
+			if (packet_size) {
+				outw ((1 << 15) | (ep_doublebuffer << 14) |
+				      (ep_size << 12) | (ep_isoc << 11) |
+				      (ep_ptr >> 3),
+				      UDC_EP_RX (ep_addr &
+						 USB_ENDPOINT_NUMBER_MASK));
+				UDCDBGA ("OUT ep %d buffer offset 0x%03x"
+					 " packet size 0x%03x",
+					 ep_addr & USB_ENDPOINT_NUMBER_MASK,
+					 ep_ptr, packet_size);
+			} else {
+				outw (0,
+				      UDC_EP_RX (ep_addr &
+						 USB_ENDPOINT_NUMBER_MASK));
+			}
+		}
+		ep_ptr += buffer_size;
+	}
+}
+
+/* omap1510_deconfigure_device
+ *
+ * This function balances omap1510_configure_device.
+ */
+static void omap1510_deconfigure_device (void)
+{
+	int epnum;
+
+	UDCDBG ("clear Cfg_Lock");
+	outw (inw (UDC_SYSCON1) & ~UDC_Cfg_Lock, UDC_SYSCON1);
+	UDCREG (UDC_SYSCON1);
+
+	/* deconfigure all endpoints */
+	for (epnum = 1; epnum <= 15; epnum++) {
+		outw (0, UDC_EP_RX (epnum));
+		outw (0, UDC_EP_TX (epnum));
+	}
+}
+
+/* omap1510_configure_device
+ *
+ * This function implements TRM Figure 14-9.
+ */
+static void omap1510_configure_device (struct usb_device_instance *device)
+{
+	omap1510_configure_endpoints (device);
+
+
+	/* Figure 14-9 indicates we should enable interrupts here, but we have
+	 * other routines (udc_all_interrupts, udc_suspended_interrupts) to
+	 * do that.
+	 */
+
+	UDCDBG ("set Cfg_Lock");
+	outw (inw (UDC_SYSCON1) | UDC_Cfg_Lock, UDC_SYSCON1);
+	UDCREG (UDC_SYSCON1);
+}
+
+/* omap1510_write_noniso_tx_fifo
+ *
+ * This function implements TRM Figure 14-30.
+ *
+ * If the endpoint has an active tx_urb, then the next packet of data from the
+ * URB is written to the tx FIFO.  The total amount of data in the urb is given
+ * by urb->actual_length.  The maximum amount of data that can be sent in any
+ * one packet is given by endpoint->tx_packetSize.  The number of data bytes
+ * from this URB that have already been transmitted is given by endpoint->sent.
+ * endpoint->last is updated by this routine with the number of data bytes
+ * transmitted in this packet.
+ *
+ * In accordance with Figure 14-30, the EP_NUM register must already have been
+ * written with the value to select the appropriate tx FIFO before this routine
+ * is called.
+ */
+static void omap1510_write_noniso_tx_fifo (struct usb_endpoint_instance
+					   *endpoint)
+{
+	struct urb *urb = endpoint->tx_urb;
+
+	if (urb) {
+		unsigned int last, i;
+
+		UDCDBGA ("urb->buffer %p, buffer_length %d, actual_length %d",
+			 urb->buffer, urb->buffer_length, urb->actual_length);
+		if ((last =
+		     MIN (urb->actual_length - endpoint->sent,
+			  endpoint->tx_packetSize))) {
+			u8 *cp = urb->buffer + endpoint->sent;
+
+			UDCDBGA ("endpoint->sent %d, tx_packetSize %d, last %d", endpoint->sent, endpoint->tx_packetSize, last);
+
+			if (((u32) cp & 1) == 0) {	/* word aligned? */
+				outsw (UDC_DATA, cp, last >> 1);
+			} else {	/* byte aligned. */
+				for (i = 0; i < (last >> 1); i++) {
+					u16 w = ((u16) cp[2 * i + 1] << 8) |
+						(u16) cp[2 * i];
+					outw (w, UDC_DATA);
+				}
+			}
+			if (last & 1) {
+				outb (*(cp + last - 1), UDC_DATA);
+			}
+		}
+		endpoint->last = last;
+	}
+}
+
+/* omap1510_read_noniso_rx_fifo
+ *
+ * This function implements TRM Figure 14-28.
+ *
+ * If the endpoint has an active rcv_urb, then the next packet of data is read
+ * from the rcv FIFO and written to rcv_urb->buffer at offset
+ * rcv_urb->actual_length to append the packet data to the data from any
+ * previous packets for this transfer.	We assume that there is sufficient room
+ * left in the buffer to hold an entire packet of data.
+ *
+ * The return value is the number of bytes read from the FIFO for this packet.
+ *
+ * In accordance with Figure 14-28, the EP_NUM register must already have been
+ * written with the value to select the appropriate rcv FIFO before this routine
+ * is called.
+ */
+static int omap1510_read_noniso_rx_fifo (struct usb_endpoint_instance
+					 *endpoint)
+{
+	struct urb *urb = endpoint->rcv_urb;
+	int len = 0;
+
+	if (urb) {
+		len = inw (UDC_RXFSTAT);
+
+		if (len) {
+			unsigned char *cp = urb->buffer + urb->actual_length;
+
+			insw (UDC_DATA, cp, len >> 1);
+			if (len & 1)
+				*(cp + len - 1) = inb (UDC_DATA);
+		}
+	}
+	return len;
+}
+
+/* omap1510_prepare_for_control_write_status
+ *
+ * This function implements TRM Figure 14-17.
+ *
+ * We have to deal here with non-autodecoded control writes that haven't already
+ * been dealt with by ep0_recv_setup.  The non-autodecoded standard control
+ * write requests are:	set/clear endpoint feature, set configuration, set
+ * interface, and set descriptor.  ep0_recv_setup handles set/clear requests for
+ * ENDPOINT_HALT by halting the endpoint for a set request and resetting the
+ * endpoint for a clear request.  ep0_recv_setup returns an error for
+ * SET_DESCRIPTOR requests which causes them to be terminated with a stall by
+ * the setup handler.  A SET_INTERFACE request is handled by ep0_recv_setup by
+ * generating a DEVICE_SET_INTERFACE event.  This leaves only the
+ * SET_CONFIGURATION event for us to deal with here.
+ *
+ */
+static void omap1510_prepare_for_control_write_status (struct urb *urb)
+{
+	struct usb_device_request *request = &urb->device_request;;
+
+	/* check for a SET_CONFIGURATION request */
+	if (request->bRequest == USB_REQ_SET_CONFIGURATION) {
+		int configuration = le16_to_cpu (request->wValue) & 0xff;
+		unsigned short devstat = inw (UDC_DEVSTAT);
+
+		if ((devstat & (UDC_ADD | UDC_CFG)) == UDC_ADD) {
+			/* device is currently in ADDRESSED state */
+			if (configuration) {
+				/* Assume the specified non-zero configuration
+				 * value is valid and switch to the CONFIGURED
+				 * state.
+				 */
+				outw (UDC_Dev_Cfg, UDC_SYSCON2);
+			}
+		} else if ((devstat & UDC_CFG) == UDC_CFG) {
+			/* device is currently in CONFIGURED state */
+			if (!configuration) {
+				/* Switch to ADDRESSED state. */
+				outw (UDC_Clr_Cfg, UDC_SYSCON2);
+			}
+		}
+	}
+
+	/* select EP0 tx FIFO */
+	outw (UDC_EP_Dir | UDC_EP_Sel, UDC_EP_NUM);
+	/* clear endpoint (no data bytes in status stage) */
+	outw (UDC_Clr_EP, UDC_CTRL);
+	/* enable the EP0 tx FIFO */
+	outw (UDC_Set_FIFO_En, UDC_CTRL);
+	/* deselect the endpoint */
+	outw (UDC_EP_Dir, UDC_EP_NUM);
+}
+
+/* udc_state_transition_up
+ * udc_state_transition_down
+ *
+ * Helper functions to implement device state changes.	The device states and
+ * the events that transition between them are:
+ *
+ *				STATE_ATTACHED
+ *				||	/\
+ *				\/	||
+ *	DEVICE_HUB_CONFIGURED			DEVICE_HUB_RESET
+ *				||	/\
+ *				\/	||
+ *				STATE_POWERED
+ *				||	/\
+ *				\/	||
+ *	DEVICE_RESET				DEVICE_POWER_INTERRUPTION
+ *				||	/\
+ *				\/	||
+ *				STATE_DEFAULT
+ *				||	/\
+ *				\/	||
+ *	DEVICE_ADDRESS_ASSIGNED			DEVICE_RESET
+ *				||	/\
+ *				\/	||
+ *				STATE_ADDRESSED
+ *				||	/\
+ *				\/	||
+ *	DEVICE_CONFIGURED			DEVICE_DE_CONFIGURED
+ *				||	/\
+ *				\/	||
+ *				STATE_CONFIGURED
+ *
+ * udc_state_transition_up transitions up (in the direction from STATE_ATTACHED
+ * to STATE_CONFIGURED) from the specified initial state to the specified final
+ * state, passing through each intermediate state on the way.  If the initial
+ * state is at or above (i.e. nearer to STATE_CONFIGURED) the final state, then
+ * no state transitions will take place.
+ *
+ * udc_state_transition_down transitions down (in the direction from
+ * STATE_CONFIGURED to STATE_ATTACHED) from the specified initial state to the
+ * specified final state, passing through each intermediate state on the way.
+ * If the initial state is at or below (i.e. nearer to STATE_ATTACHED) the final
+ * state, then no state transitions will take place.
+ *
+ * These functions must only be called with interrupts disabled.
+ */
+static void udc_state_transition_up (usb_device_state_t initial,
+				     usb_device_state_t final)
+{
+	if (initial < final) {
+		switch (initial) {
+		case STATE_ATTACHED:
+			usbd_device_event_irq (udc_device,
+					       DEVICE_HUB_CONFIGURED, 0);
+			if (final == STATE_POWERED)
+				break;
+		case STATE_POWERED:
+			usbd_device_event_irq (udc_device, DEVICE_RESET, 0);
+			if (final == STATE_DEFAULT)
+				break;
+		case STATE_DEFAULT:
+			usbd_device_event_irq (udc_device,
+					       DEVICE_ADDRESS_ASSIGNED, 0);
+			if (final == STATE_ADDRESSED)
+				break;
+		case STATE_ADDRESSED:
+			usbd_device_event_irq (udc_device, DEVICE_CONFIGURED,
+					       0);
+		case STATE_CONFIGURED:
+			break;
+		default:
+			break;
+		}
+	}
+}
+
+static void udc_state_transition_down (usb_device_state_t initial,
+				       usb_device_state_t final)
+{
+	if (initial > final) {
+		switch (initial) {
+		case STATE_CONFIGURED:
+			usbd_device_event_irq (udc_device, DEVICE_DE_CONFIGURED, 0);
+			if (final == STATE_ADDRESSED)
+				break;
+		case STATE_ADDRESSED:
+			usbd_device_event_irq (udc_device, DEVICE_RESET, 0);
+			if (final == STATE_DEFAULT)
+				break;
+		case STATE_DEFAULT:
+			usbd_device_event_irq (udc_device, DEVICE_POWER_INTERRUPTION, 0);
+			if (final == STATE_POWERED)
+				break;
+		case STATE_POWERED:
+			usbd_device_event_irq (udc_device, DEVICE_HUB_RESET, 0);
+		case STATE_ATTACHED:
+			break;
+		default:
+			break;
+		}
+	}
+}
+
+/* Handle all device state changes.
+ * This function implements TRM Figure 14-21.
+ */
+static void omap1510_udc_state_changed (void)
+{
+	u16 bits;
+	u16 devstat = inw (UDC_DEVSTAT);
+
+	UDCDBGA ("state changed, devstat %x, old %x", devstat, udc_devstat);
+
+	bits = devstat ^ udc_devstat;
+	if (bits) {
+		if (bits & UDC_ATT) {
+			if (devstat & UDC_ATT) {
+				UDCDBG ("device attached and powered");
+				udc_state_transition_up (udc_device->device_state, STATE_POWERED);
+			} else {
+				UDCDBG ("device detached or unpowered");
+				udc_state_transition_down (udc_device->device_state, STATE_ATTACHED);
+			}
+		}
+		if (bits & UDC_USB_Reset) {
+			if (devstat & UDC_USB_Reset) {
+				UDCDBG ("device reset in progess");
+				udc_state_transition_down (udc_device->device_state, STATE_POWERED);
+			} else {
+				UDCDBG ("device reset completed");
+			}
+		}
+		if (bits & UDC_DEF) {
+			if (devstat & UDC_DEF) {
+				UDCDBG ("device entering default state");
+				udc_state_transition_up (udc_device->device_state, STATE_DEFAULT);
+			} else {
+				UDCDBG ("device leaving default state");
+				udc_state_transition_down (udc_device->device_state, STATE_POWERED);
+			}
+		}
+		if (bits & UDC_SUS) {
+			if (devstat & UDC_SUS) {
+				UDCDBG ("entering suspended state");
+				usbd_device_event_irq (udc_device, DEVICE_BUS_INACTIVE, 0);
+			} else {
+				UDCDBG ("leaving suspended state");
+				usbd_device_event_irq (udc_device, DEVICE_BUS_ACTIVITY, 0);
+			}
+		}
+		if (bits & UDC_R_WK_OK) {
+			UDCDBGA ("remote wakeup %s", (devstat & UDC_R_WK_OK)
+				 ? "enabled" : "disabled");
+		}
+		if (bits & UDC_ADD) {
+			if (devstat & UDC_ADD) {
+				UDCDBG ("default -> addressed");
+				udc_state_transition_up (udc_device->device_state, STATE_ADDRESSED);
+			} else {
+				UDCDBG ("addressed -> default");
+				udc_state_transition_down (udc_device->device_state, STATE_DEFAULT);
+			}
+		}
+		if (bits & UDC_CFG) {
+			if (devstat & UDC_CFG) {
+				UDCDBG ("device configured");
+				/* The ep0_recv_setup function generates the
+				 * DEVICE_CONFIGURED event when a
+				 * USB_REQ_SET_CONFIGURATION setup packet is
+				 * received, so we should already be in the
+				 * state STATE_CONFIGURED.
+				 */
+				udc_state_transition_up (udc_device->device_state, STATE_CONFIGURED);
+			} else {
+				UDCDBG ("device deconfigured");
+				udc_state_transition_down (udc_device->device_state, STATE_ADDRESSED);
+			}
+		}
+	}
+
+	/* Clear interrupt source */
+	outw (UDC_DS_Chg, UDC_IRQ_SRC);
+
+	/* Save current DEVSTAT */
+	udc_devstat = devstat;
+}
+
+/* Handle SETUP USB interrupt.
+ * This function implements TRM Figure 14-14.
+ */
+static void omap1510_udc_setup (struct usb_endpoint_instance *endpoint)
+{
+	UDCDBG ("-> Entering device setup");
+
+	do {
+		const int setup_pktsize = 8;
+		unsigned char *datap =
+			(unsigned char *) &ep0_urb->device_request;
+
+		/* Gain access to EP 0 setup FIFO */
+		outw (UDC_Setup_Sel, UDC_EP_NUM);
+
+		/* Read control request data */
+		insb (UDC_DATA, datap, setup_pktsize);
+
+		UDCDBGA ("EP0 setup read [%x %x %x %x %x %x %x %x]",
+			 *(datap + 0), *(datap + 1), *(datap + 2),
+			 *(datap + 3), *(datap + 4), *(datap + 5),
+			 *(datap + 6), *(datap + 7));
+
+		/* Reset EP0 setup FIFO */
+		outw (0, UDC_EP_NUM);
+	} while (inw (UDC_IRQ_SRC) & UDC_Setup);
+
+	/* Try to process setup packet */
+	if (ep0_recv_setup (ep0_urb)) {
+		/* Not a setup packet, stall next EP0 transaction */
+		udc_stall_ep (0);
+		UDCDBG ("can't parse setup packet, still waiting for setup");
+		return;
+	}
+
+	/* Check direction */
+	if ((ep0_urb->device_request.bmRequestType & USB_REQ_DIRECTION_MASK)
+	    == USB_REQ_HOST2DEVICE) {
+		UDCDBG ("control write on EP0");
+		if (le16_to_cpu (ep0_urb->device_request.wLength)) {
+			/* We don't support control write data stages.
+			 * The only standard control write request with a data
+			 * stage is SET_DESCRIPTOR, and ep0_recv_setup doesn't
+			 * support that so we just stall those requests.  A
+			 * function driver might support a non-standard
+			 * write request with a data stage, but it isn't
+			 * obvious what we would do with the data if we read it
+			 * so we'll just stall it.  It seems like the API isn't
+			 * quite right here.
+			 */
+#if 0
+			/* Here is what we would do if we did support control
+			 * write data stages.
+			 */
+			ep0_urb->actual_length = 0;
+			outw (0, UDC_EP_NUM);
+			/* enable the EP0 rx FIFO */
+			outw (UDC_Set_FIFO_En, UDC_CTRL);
+#else
+			/* Stall this request */
+			UDCDBG ("Stalling unsupported EP0 control write data "
+				"stage.");
+			udc_stall_ep (0);
+#endif
+		} else {
+			omap1510_prepare_for_control_write_status (ep0_urb);
+		}
+	} else {
+		UDCDBG ("control read on EP0");
+		/* The ep0_recv_setup function has already placed our response
+		 * packet data in ep0_urb->buffer and the packet length in
+		 * ep0_urb->actual_length.
+		 */
+		endpoint->tx_urb = ep0_urb;
+		endpoint->sent = 0;
+		/* select the EP0 tx FIFO */
+		outw (UDC_EP_Dir | UDC_EP_Sel, UDC_EP_NUM);
+		/* Write packet data to the FIFO.  omap1510_write_noniso_tx_fifo
+		 * will update endpoint->last with the number of bytes written
+		 * to the FIFO.
+		 */
+		omap1510_write_noniso_tx_fifo (endpoint);
+		/* enable the FIFO to start the packet transmission */
+		outw (UDC_Set_FIFO_En, UDC_CTRL);
+		/* deselect the EP0 tx FIFO */
+		outw (UDC_EP_Dir, UDC_EP_NUM);
+	}
+
+	UDCDBG ("<- Leaving device setup");
+}
+
+/* Handle endpoint 0 RX interrupt
+ * This routine implements TRM Figure 14-16.
+ */
+static void omap1510_udc_ep0_rx (struct usb_endpoint_instance *endpoint)
+{
+	unsigned short status;
+
+	UDCDBG ("RX on EP0");
+	/* select EP0 rx FIFO */
+	outw (UDC_EP_Sel, UDC_EP_NUM);
+
+	status = inw (UDC_STAT_FLG);
+
+	if (status & UDC_ACK) {
+		/* Check direction */
+		if ((ep0_urb->device_request.bmRequestType
+		     & USB_REQ_DIRECTION_MASK) == USB_REQ_HOST2DEVICE) {
+			/* This rx interrupt must be for a control write data
+			 * stage packet.
+			 *
+			 * We don't support control write data stages.
+			 * We should never end up here.
+			 */
+
+			/* clear the EP0 rx FIFO */
+			outw (UDC_Clr_EP, UDC_CTRL);
+
+			/* deselect the EP0 rx FIFO */
+			outw (0, UDC_EP_NUM);
+
+			UDCDBG ("Stalling unexpected EP0 control write "
+				"data stage packet");
+			udc_stall_ep (0);
+		} else {
+			/* This rx interrupt must be for a control read status
+			 * stage packet.
+			 */
+			UDCDBG ("ACK on EP0 control read status stage packet");
+			/* deselect EP0 rx FIFO */
+			outw (0, UDC_EP_NUM);
+		}
+	} else if (status & UDC_STALL) {
+		UDCDBG ("EP0 stall during RX");
+		/* deselect EP0 rx FIFO */
+		outw (0, UDC_EP_NUM);
+	} else {
+		/* deselect EP0 rx FIFO */
+		outw (0, UDC_EP_NUM);
+	}
+}
+
+/* Handle endpoint 0 TX interrupt
+ * This routine implements TRM Figure 14-18.
+ */
+static void omap1510_udc_ep0_tx (struct usb_endpoint_instance *endpoint)
+{
+	unsigned short status;
+	struct usb_device_request *request = &ep0_urb->device_request;
+
+	UDCDBG ("TX on EP0");
+	/* select EP0 TX FIFO */
+	outw (UDC_EP_Dir | UDC_EP_Sel, UDC_EP_NUM);
+
+	status = inw (UDC_STAT_FLG);
+	if (status & UDC_ACK) {
+		/* Check direction */
+		if ((request->bmRequestType & USB_REQ_DIRECTION_MASK) ==
+		    USB_REQ_HOST2DEVICE) {
+			/* This tx interrupt must be for a control write status
+			 * stage packet.
+			 */
+			UDCDBG ("ACK on EP0 control write status stage packet");
+			/* deselect EP0 TX FIFO */
+			outw (UDC_EP_Dir, UDC_EP_NUM);
+		} else {
+			/* This tx interrupt must be for a control read data
+			 * stage packet.
+			 */
+			int wLength = le16_to_cpu (request->wLength);
+
+			/* Update our count of bytes sent so far in this
+			 * transfer.
+			 */
+			endpoint->sent += endpoint->last;
+
+			/* We are finished with this transfer if we have sent
+			 * all of the bytes in our tx urb (urb->actual_length)
+			 * unless we need a zero-length terminating packet.  We
+			 * need a zero-length terminating packet if we returned
+			 * fewer bytes than were requested (wLength) by the host,
+			 * and the number of bytes we returned is an exact
+			 * multiple of the packet size endpoint->tx_packetSize.
+			 */
+			if ((endpoint->sent == ep0_urb->actual_length)
+			    && ((ep0_urb->actual_length == wLength)
+				|| (endpoint->last !=
+				    endpoint->tx_packetSize))) {
+				/* Done with control read data stage. */
+				UDCDBG ("control read data stage complete");
+				/* deselect EP0 TX FIFO */
+				outw (UDC_EP_Dir, UDC_EP_NUM);
+				/* select EP0 RX FIFO to prepare for control
+				 * read status stage.
+				 */
+				outw (UDC_EP_Sel, UDC_EP_NUM);
+				/* clear the EP0 RX FIFO */
+				outw (UDC_Clr_EP, UDC_CTRL);
+				/* enable the EP0 RX FIFO */
+				outw (UDC_Set_FIFO_En, UDC_CTRL);
+				/* deselect the EP0 RX FIFO */
+				outw (0, UDC_EP_NUM);
+			} else {
+				/* We still have another packet of data to send
+				 * in this control read data stage or else we
+				 * need a zero-length terminating packet.
+				 */
+				UDCDBG ("ACK control read data stage packet");
+				omap1510_write_noniso_tx_fifo (endpoint);
+				/* enable the EP0 tx FIFO to start transmission */
+				outw (UDC_Set_FIFO_En, UDC_CTRL);
+				/* deselect EP0 TX FIFO */
+				outw (UDC_EP_Dir, UDC_EP_NUM);
+			}
+		}
+	} else if (status & UDC_STALL) {
+		UDCDBG ("EP0 stall during TX");
+		/* deselect EP0 TX FIFO */
+		outw (UDC_EP_Dir, UDC_EP_NUM);
+	} else {
+		/* deselect EP0 TX FIFO */
+		outw (UDC_EP_Dir, UDC_EP_NUM);
+	}
+}
+
+/* Handle RX transaction on non-ISO endpoint.
+ * This function implements TRM Figure 14-27.
+ * The ep argument is a physical endpoint number for a non-ISO OUT endpoint
+ * in the range 1 to 15.
+ */
+static void omap1510_udc_epn_rx (int ep)
+{
+	unsigned short status;
+
+	/* Check endpoint status */
+	status = inw (UDC_STAT_FLG);
+
+	if (status & UDC_ACK) {
+		int nbytes;
+		struct usb_endpoint_instance *endpoint =
+			omap1510_find_ep (ep);
+
+		nbytes = omap1510_read_noniso_rx_fifo (endpoint);
+		usbd_rcv_complete (endpoint, nbytes, 0);
+
+		/* enable rx FIFO to prepare for next packet */
+		outw (UDC_Set_FIFO_En, UDC_CTRL);
+	} else if (status & UDC_STALL) {
+		UDCDBGA ("STALL on RX endpoint %d", ep);
+	} else if (status & UDC_NAK) {
+		UDCDBGA ("NAK on RX ep %d", ep);
+	} else {
+		serial_printf ("omap-bi: RX on ep %d with status %x", ep,
+			       status);
+	}
+}
+
+/* Handle TX transaction on non-ISO endpoint.
+ * This function implements TRM Figure 14-29.
+ * The ep argument is a physical endpoint number for a non-ISO IN endpoint
+ * in the range 16 to 30.
+ */
+static void omap1510_udc_epn_tx (int ep)
+{
+	unsigned short status;
+
+	/*serial_printf("omap1510_udc_epn_tx( %x )\n",ep); */
+
+	/* Check endpoint status */
+	status = inw (UDC_STAT_FLG);
+
+	if (status & UDC_ACK) {
+		struct usb_endpoint_instance *endpoint =
+			omap1510_find_ep (ep);
+
+		/* We need to transmit a terminating zero-length packet now if
+		 * we have sent all of the data in this URB and the transfer
+		 * size was an exact multiple of the packet size.
+		 */
+		if (endpoint->tx_urb
+		    && (endpoint->last == endpoint->tx_packetSize)
+		    && (endpoint->tx_urb->actual_length - endpoint->sent -
+			endpoint->last == 0)) {
+			/* Prepare to transmit a zero-length packet. */
+			endpoint->sent += endpoint->last;
+			/* write 0 bytes of data to FIFO */
+			omap1510_write_noniso_tx_fifo (endpoint);
+			/* enable tx FIFO to start transmission */
+			outw (UDC_Set_FIFO_En, UDC_CTRL);
+		} else if (endpoint->tx_urb
+			   && endpoint->tx_urb->actual_length) {
+			/* retire the data that was just sent */
+			usbd_tx_complete (endpoint);
+			/* Check to see if we have more data ready to transmit
+			 * now.
+			 */
+			if (endpoint->tx_urb
+			    && endpoint->tx_urb->actual_length) {
+				/* write data to FIFO */
+				omap1510_write_noniso_tx_fifo (endpoint);
+				/* enable tx FIFO to start transmission */
+				outw (UDC_Set_FIFO_En, UDC_CTRL);
+			}
+		}
+	} else if (status & UDC_STALL) {
+		UDCDBGA ("STALL on TX endpoint %d", ep);
+	} else if (status & UDC_NAK) {
+		UDCDBGA ("NAK on TX endpoint %d", ep);
+	} else {
+		/*serial_printf("omap-bi: TX on ep %d with status %x\n", ep, status); */
+	}
+}
+
+
+/*
+-------------------------------------------------------------------------------
+*/
+
+/* Handle general USB interrupts and dispatch according to type.
+ * This function implements TRM Figure 14-13.
+ */
+void omap1510_udc_irq (void)
+{
+	u16 irq_src = inw (UDC_IRQ_SRC);
+	int valid_irq = 0;
+
+	if (!(irq_src & ~UDC_SOF_Flg))	/* ignore SOF interrupts ) */
+		return;
+
+	UDCDBGA ("< IRQ #%d start >- %x", udc_interrupts, irq_src);
+	/*serial_printf("< IRQ #%d start >- %x\n", udc_interrupts, irq_src); */
+
+	if (irq_src & UDC_DS_Chg) {
+		/* Device status changed */
+		omap1510_udc_state_changed ();
+		valid_irq++;
+	}
+	if (irq_src & UDC_EP0_RX) {
+		/* Endpoint 0 receive */
+		outw (UDC_EP0_RX, UDC_IRQ_SRC); /* ack interrupt */
+		omap1510_udc_ep0_rx (udc_device->bus->endpoint_array + 0);
+		valid_irq++;
+	}
+	if (irq_src & UDC_EP0_TX) {
+		/* Endpoint 0 transmit */
+		outw (UDC_EP0_TX, UDC_IRQ_SRC); /* ack interrupt */
+		omap1510_udc_ep0_tx (udc_device->bus->endpoint_array + 0);
+		valid_irq++;
+	}
+	if (irq_src & UDC_Setup) {
+		/* Device setup */
+		omap1510_udc_setup (udc_device->bus->endpoint_array + 0);
+		valid_irq++;
+	}
+	/*if (!valid_irq) */
+	/*	serial_printf("unknown interrupt, IRQ_SRC %.4x\n", irq_src); */
+	UDCDBGA ("< IRQ #%d end >", udc_interrupts);
+	udc_interrupts++;
+}
+
+/* This function implements TRM Figure 14-26. */
+void omap1510_udc_noniso_irq (void)
+{
+	unsigned short epnum;
+	unsigned short irq_src = inw (UDC_IRQ_SRC);
+	int valid_irq = 0;
+
+	if (!(irq_src & (UDC_EPn_RX | UDC_EPn_TX)))
+		return;
+
+	UDCDBGA ("non-ISO IRQ, IRQ_SRC %x", inw (UDC_IRQ_SRC));
+
+	if (irq_src & UDC_EPn_RX) {	/* Endpoint N OUT transaction */
+		/* Determine the endpoint number for this interrupt */
+		epnum = (inw (UDC_EPN_STAT) & 0x0f00) >> 8;
+		UDCDBGA ("RX on ep %x", epnum);
+
+		/* acknowledge interrupt */
+		outw (UDC_EPn_RX, UDC_IRQ_SRC);
+
+		if (epnum) {
+			/* select the endpoint FIFO */
+			outw (UDC_EP_Sel | epnum, UDC_EP_NUM);
+
+			omap1510_udc_epn_rx (epnum);
+
+			/* deselect the endpoint FIFO */
+			outw (epnum, UDC_EP_NUM);
+		}
+		valid_irq++;
+	}
+	if (irq_src & UDC_EPn_TX) {	/* Endpoint N IN transaction */
+		/* Determine the endpoint number for this interrupt */
+		epnum = (inw (UDC_EPN_STAT) & 0x000f) | USB_DIR_IN;
+		UDCDBGA ("TX on ep %x", epnum);
+
+		/* acknowledge interrupt */
+		outw (UDC_EPn_TX, UDC_IRQ_SRC);
+
+		if (epnum) {
+			/* select the endpoint FIFO */
+			outw (UDC_EP_Sel | UDC_EP_Dir | epnum, UDC_EP_NUM);
+
+			omap1510_udc_epn_tx (epnum);
+
+			/* deselect the endpoint FIFO */
+			outw (UDC_EP_Dir | epnum, UDC_EP_NUM);
+		}
+		valid_irq++;
+	}
+	if (!valid_irq)
+		serial_printf (": unknown non-ISO interrupt, IRQ_SRC %.4x\n",
+			       irq_src);
+}
+
+/*
+-------------------------------------------------------------------------------
+*/
+
+
+/*
+ * Start of public functions.
+ */
+
+/* Called to start packet transmission. */
+void udc_endpoint_write (struct usb_endpoint_instance *endpoint)
+{
+	unsigned short epnum =
+		endpoint->endpoint_address & USB_ENDPOINT_NUMBER_MASK;
+
+	UDCDBGA ("Starting transmit on ep %x", epnum);
+
+	if (endpoint->tx_urb) {
+		/* select the endpoint FIFO */
+		outw (UDC_EP_Sel | UDC_EP_Dir | epnum, UDC_EP_NUM);
+		/* write data to FIFO */
+		omap1510_write_noniso_tx_fifo (endpoint);
+		/* enable tx FIFO to start transmission */
+		outw (UDC_Set_FIFO_En, UDC_CTRL);
+		/* deselect the endpoint FIFO */
+		outw (UDC_EP_Dir | epnum, UDC_EP_NUM);
+	}
+}
+
+/* Start to initialize h/w stuff */
+int udc_init (void)
+{
+	u16 udc_rev;
+	uchar wert;
+
+	udc_device = NULL;
+
+	UDCDBG ("starting");
+
+	/* Check peripheral reset. Must be 1 to make sure
+	   MPU TIPB peripheral reset is inactive */
+	UDCREG (ARM_RSTCT2);
+
+	/* Set and check clock control.
+	 * We might ought to be using the clock control API to do
+	 * this instead of fiddling with the clock registers directly
+	 * here.
+	 */
+	outw ((1 << 4) | (1 << 5), CLOCK_CTRL);
+	UDCREG (CLOCK_CTRL);
+	/* Set and check APLL */
+	outw (0x0008, APLL_CTRL);
+	UDCREG (APLL_CTRL);
+	/* Set and check DPLL */
+	outw (0x2210, DPLL_CTRL);
+	UDCREG (DPLL_CTRL);
+	/* Set and check SOFT */
+	outw ((1 << 4) | (1 << 3) | 1, SOFT_REQ);
+	/* Short delay to wait for DPLL */
+	udelay (1000);
+
+	/* Print banner with device revision */
+	udc_rev = inw (UDC_REV) & 0xff;
+	printf ("USB:   TI OMAP1510 USB function module rev %d.%d\n",
+		udc_rev >> 4, udc_rev & 0xf);
+
+	/* Configure some Sofia Unit registers
+	 */
+	i2c_read (0x32, 0x04, 1, &wert, 1);	/* SOF_Control_CONT */
+	wert |= 0x04;		/* SOF_ContCONT_dis_usb_det */
+	i2c_write (0x32, 0x04, 1, &wert, 1);
+
+	i2c_read (0x32, 0x03, 1, &wert, 1);	/* SOF_Control */
+	wert |= 0x01;		/* SOF_Cont_usb_en */
+	i2c_write (0x32, 0x03, 1, &wert, 1);
+
+	/* The VBUS_MODE bit selects whether VBUS detection is done via
+	 * software (1) or hardware (0).  When software detection is
+	 * selected, VBUS_CTRL selects whether USB is not connected (0)
+	 * or connected (1).
+	 */
+	outl (inl (FUNC_MUX_CTRL_0) | UDC_VBUS_MODE, FUNC_MUX_CTRL_0);
+	outl (inl (FUNC_MUX_CTRL_0) & ~UDC_VBUS_CTRL, FUNC_MUX_CTRL_0);
+	UDCREGL (FUNC_MUX_CTRL_0);
+
+	/*
+	 * At this point, device is ready for configuration...
+	 */
+
+	UDCDBG ("disable USB interrupts");
+	outw (0, UDC_IRQ_EN);
+	UDCREG (UDC_IRQ_EN);
+
+	UDCDBG ("disable USB DMA");
+	outw (0, UDC_DMA_IRQ_EN);
+	UDCREG (UDC_DMA_IRQ_EN);
+
+	UDCDBG ("initialize SYSCON1");
+	outw (UDC_Self_Pwr | UDC_Pullup_En, UDC_SYSCON1);
+	UDCREG (UDC_SYSCON1);
+
+	return 0;
+}
+
+/* Stall endpoint */
+static void udc_stall_ep (unsigned int ep_addr)
+{
+	/*int ep_addr = PHYS_EP_TO_EP_ADDR(ep); */
+	int ep_num = ep_addr & USB_ENDPOINT_NUMBER_MASK;
+
+	UDCDBGA ("stall ep_addr %d", ep_addr);
+
+	/* REVISIT?
+	 * The OMAP TRM section 14.2.4.2 says we must check that the FIFO
+	 * is empty before halting the endpoint.  The current implementation
+	 * doesn't check that the FIFO is empty.
+	 */
+
+	if (!ep_num) {
+		outw (UDC_Stall_Cmd, UDC_SYSCON2);
+	} else if ((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
+		if (inw (UDC_EP_RX (ep_num)) & UDC_EPn_RX_Valid) {
+			/* we have a valid rx endpoint, so halt it */
+			outw (UDC_EP_Sel | ep_num, UDC_EP_NUM);
+			outw (UDC_Set_Halt, UDC_CTRL);
+			outw (ep_num, UDC_EP_NUM);
+		}
+	} else {
+		if (inw (UDC_EP_TX (ep_num)) & UDC_EPn_TX_Valid) {
+			/* we have a valid tx endpoint, so halt it */
+			outw (UDC_EP_Sel | UDC_EP_Dir | ep_num, UDC_EP_NUM);
+			outw (UDC_Set_Halt, UDC_CTRL);
+			outw (ep_num, UDC_EP_NUM);
+		}
+	}
+}
+
+/* Reset endpoint */
+#if 0
+static void udc_reset_ep (unsigned int ep_addr)
+{
+	/*int ep_addr = PHYS_EP_TO_EP_ADDR(ep); */
+	int ep_num = ep_addr & USB_ENDPOINT_NUMBER_MASK;
+
+	UDCDBGA ("reset ep_addr %d", ep_addr);
+
+	if (!ep_num) {
+		/* control endpoint 0 can't be reset */
+	} else if ((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
+		UDCDBGA ("UDC_EP_RX(%d) = 0x%04x", ep_num,
+			 inw (UDC_EP_RX (ep_num)));
+		if (inw (UDC_EP_RX (ep_num)) & UDC_EPn_RX_Valid) {
+			/* we have a valid rx endpoint, so reset it */
+			outw (ep_num | UDC_EP_Sel, UDC_EP_NUM);
+			outw (UDC_Reset_EP, UDC_CTRL);
+			outw (ep_num, UDC_EP_NUM);
+			UDCDBGA ("OUT endpoint %d reset", ep_num);
+		}
+	} else {
+		UDCDBGA ("UDC_EP_TX(%d) = 0x%04x", ep_num,
+			 inw (UDC_EP_TX (ep_num)));
+		/* Resetting of tx endpoints seems to be causing the USB function
+		 * module to fail, which causes problems when the driver is
+		 * uninstalled.	 We'll skip resetting tx endpoints for now until
+		 * we figure out what the problem is.
+		 */
+#if 0
+		if (inw (UDC_EP_TX (ep_num)) & UDC_EPn_TX_Valid) {
+			/* we have a valid tx endpoint, so reset it */
+			outw (ep_num | UDC_EP_Dir | UDC_EP_Sel, UDC_EP_NUM);
+			outw (UDC_Reset_EP, UDC_CTRL);
+			outw (ep_num | UDC_EP_Dir, UDC_EP_NUM);
+			UDCDBGA ("IN endpoint %d reset", ep_num);
+		}
+#endif
+	}
+}
+#endif
+
+/* ************************************************************************** */
+
+/**
+ * udc_check_ep - check logical endpoint
+  *
+ * Return physical endpoint number to use for this logical endpoint or zero if not valid.
+ */
+#if 0
+int udc_check_ep (int logical_endpoint, int packetsize)
+{
+	if ((logical_endpoint == 0x80) ||
+	    ((logical_endpoint & 0x8f) != logical_endpoint)) {
+		return 0;
+	}
+
+	switch (packetsize) {
+	case 8:
+	case 16:
+	case 32:
+	case 64:
+	case 128:
+	case 256:
+	case 512:
+		break;
+	default:
+		return 0;
+	}
+
+	return EP_ADDR_TO_PHYS_EP (logical_endpoint);
+}
+#endif
+
+/*
+ * udc_setup_ep - setup endpoint
+ *
+ * Associate a physical endpoint with endpoint_instance
+ */
+void udc_setup_ep (struct usb_device_instance *device,
+		   unsigned int ep, struct usb_endpoint_instance *endpoint)
+{
+	UDCDBGA ("setting up endpoint addr %x", endpoint->endpoint_address);
+
+	/* This routine gets called by bi_modinit for endpoint 0 and from
+	 * bi_config for all of the other endpoints.  bi_config gets called
+	 * during the DEVICE_CREATE, DEVICE_CONFIGURED, and
+	 * DEVICE_SET_INTERFACE events.	 We need to reconfigure the OMAP packet
+	 * RAM after bi_config scans the selected device configuration and
+	 * initializes the endpoint structures, but before this routine enables
+	 * the OUT endpoint FIFOs.  Since bi_config calls this routine in a
+	 * loop for endpoints 1 through UDC_MAX_ENDPOINTS, we reconfigure our
+	 * packet RAM here when ep==1.
+	 * I really hate to do this here, but it seems like the API exported
+	 * by the USB bus interface controller driver to the usbd-bi module
+	 * isn't quite right so there is no good place to do this.
+	 */
+	if (ep == 1) {
+		omap1510_deconfigure_device ();
+		omap1510_configure_device (device);
+	}
+
+	if (endpoint && (ep < UDC_MAX_ENDPOINTS)) {
+		int ep_addr = endpoint->endpoint_address;
+
+		if (!ep_addr) {
+			/* nothing to do for endpoint 0 */
+		} else if ((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) {
+			/* nothing to do for IN (tx) endpoints */
+		} else {	/* OUT (rx) endpoint */
+			if (endpoint->rcv_packetSize) {
+				/*struct urb* urb = &(urb_out_array[ep&0xFF]); */
+				/*urb->endpoint = endpoint; */
+				/*urb->device = device; */
+				/*urb->buffer_length = sizeof(urb->buffer); */
+
+				/*endpoint->rcv_urb = urb; */
+				omap1510_prepare_endpoint_for_rx (ep_addr);
+			}
+		}
+	}
+}
+
+/**
+ * udc_disable_ep - disable endpoint
+ * @ep:
+ *
+ * Disable specified endpoint
+ */
+#if 0
+void udc_disable_ep (unsigned int ep_addr)
+{
+	/*int ep_addr = PHYS_EP_TO_EP_ADDR(ep); */
+	int ep_num = ep_addr & USB_ENDPOINT_NUMBER_MASK;
+	struct usb_endpoint_instance *endpoint = omap1510_find_ep (ep_addr);	/*udc_device->bus->endpoint_array + ep; */
+
+	UDCDBGA ("disable ep_addr %d", ep_addr);
+
+	if (!ep_num) {
+		/* nothing to do for endpoint 0 */ ;
+	} else if ((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) {
+		if (endpoint->tx_packetSize) {
+			/* we have a valid tx endpoint */
+			/*usbd_flush_tx(endpoint); */
+			endpoint->tx_urb = NULL;
+		}
+	} else {
+		if (endpoint->rcv_packetSize) {
+			/* we have a valid rx endpoint */
+			/*usbd_flush_rcv(endpoint); */
+			endpoint->rcv_urb = NULL;
+		}
+	}
+}
+#endif
+
+/* ************************************************************************** */
+
+/**
+ * udc_connected - is the USB cable connected
+ *
+ * Return non-zero if cable is connected.
+ */
+#if 0
+int udc_connected (void)
+{
+	return ((inw (UDC_DEVSTAT) & UDC_ATT) == UDC_ATT);
+}
+#endif
+
+/* Turn on the USB connection by enabling the pullup resistor */
+void udc_connect (void)
+{
+	UDCDBG ("connect, enable Pullup");
+	outl (0x00000018, FUNC_MUX_CTRL_D);
+}
+
+/* Turn off the USB connection by disabling the pullup resistor */
+void udc_disconnect (void)
+{
+	UDCDBG ("disconnect, disable Pullup");
+	outl (0x00000000, FUNC_MUX_CTRL_D);
+}
+
+/* ************************************************************************** */
+
+
+/*
+ * udc_disable_interrupts - disable interrupts
+ * switch off interrupts
+ */
+#if 0
+void udc_disable_interrupts (struct usb_device_instance *device)
+{
+	UDCDBG ("disabling all interrupts");
+	outw (0, UDC_IRQ_EN);
+}
+#endif
+
+/* ************************************************************************** */
+
+/**
+ * udc_ep0_packetsize - return ep0 packetsize
+ */
+#if 0
+int udc_ep0_packetsize (void)
+{
+	return EP0_PACKETSIZE;
+}
+#endif
+
+/* Switch on the UDC */
+void udc_enable (struct usb_device_instance *device)
+{
+	UDCDBGA ("enable device %p, status %d", device, device->status);
+
+	/* initialize driver state variables */
+	udc_devstat = 0;
+
+	/* Save the device structure pointer */
+	udc_device = device;
+
+	/* Setup ep0 urb */
+	if (!ep0_urb) {
+		ep0_urb =
+			usbd_alloc_urb (udc_device,
+					udc_device->bus->endpoint_array);
+	} else {
+		serial_printf ("udc_enable: ep0_urb already allocated %p\n",
+			       ep0_urb);
+	}
+
+	UDCDBG ("Check clock status");
+	UDCREG (STATUS_REQ);
+
+	/* The VBUS_MODE bit selects whether VBUS detection is done via
+	 * software (1) or hardware (0).  When software detection is
+	 * selected, VBUS_CTRL selects whether USB is not connected (0)
+	 * or connected (1).
+	 */
+	outl (inl (FUNC_MUX_CTRL_0) | UDC_VBUS_CTRL | UDC_VBUS_MODE,
+	      FUNC_MUX_CTRL_0);
+	UDCREGL (FUNC_MUX_CTRL_0);
+
+	omap1510_configure_device (device);
+}
+
+/* Switch off the UDC */
+void udc_disable (void)
+{
+	UDCDBG ("disable UDC");
+
+	omap1510_deconfigure_device ();
+
+	/* The VBUS_MODE bit selects whether VBUS detection is done via
+	 * software (1) or hardware (0).  When software detection is
+	 * selected, VBUS_CTRL selects whether USB is not connected (0)
+	 * or connected (1).
+	 */
+	outl (inl (FUNC_MUX_CTRL_0) | UDC_VBUS_MODE, FUNC_MUX_CTRL_0);
+	outl (inl (FUNC_MUX_CTRL_0) & ~UDC_VBUS_CTRL, FUNC_MUX_CTRL_0);
+	UDCREGL (FUNC_MUX_CTRL_0);
+
+	/* Free ep0 URB */
+	if (ep0_urb) {
+		/*usbd_dealloc_urb(ep0_urb); */
+		ep0_urb = NULL;
+	}
+
+	/* Reset device pointer.
+	 * We ought to do this here to balance the initialization of udc_device
+	 * in udc_enable, but some of our other exported functions get called
+	 * by the bus interface driver after udc_disable, so we have to hang on
+	 * to the device pointer to avoid a null pointer dereference. */
+	/* udc_device = NULL; */
+}
+
+/**
+ * udc_startup - allow udc code to do any additional startup
+ */
+void udc_startup_events (struct usb_device_instance *device)
+{
+	/* The DEVICE_INIT event puts the USB device in the state STATE_INIT. */
+	usbd_device_event_irq (device, DEVICE_INIT, 0);
+
+	/* The DEVICE_CREATE event puts the USB device in the state
+	 * STATE_ATTACHED.
+	 */
+	usbd_device_event_irq (device, DEVICE_CREATE, 0);
+
+	/* Some USB controller driver implementations signal
+	 * DEVICE_HUB_CONFIGURED and DEVICE_RESET events here.
+	 * DEVICE_HUB_CONFIGURED causes a transition to the state STATE_POWERED,
+	 * and DEVICE_RESET causes a transition to the state STATE_DEFAULT.
+	 * The OMAP USB client controller has the capability to detect when the
+	 * USB cable is connected to a powered USB bus via the ATT bit in the
+	 * DEVSTAT register, so we will defer the DEVICE_HUB_CONFIGURED and
+	 * DEVICE_RESET events until later.
+	 */
+
+	udc_enable (device);
+}
+
+#endif
diff --git a/drivers/usbtty.c b/drivers/usbtty.c
new file mode 100644
index 0000000..2f89e2b
--- /dev/null
+++ b/drivers/usbtty.c
@@ -0,0 +1,647 @@
+/*
+ * (C) Copyright 2003
+ * Gerry Hamel, geh@ti.com, Texas Instruments
+ *
+ * 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 <common.h>
+
+#ifdef CONFIG_USB_TTY
+
+#include <circbuf.h>
+#include <devices.h>
+#include "usbtty.h"
+
+#if 0
+#define TTYDBG(fmt,args...) serial_printf("[%s] %s %d: "fmt, __FILE__,__FUNCTION__,__LINE__,##args)
+#else
+#define TTYDBG(fmt,args...) do{}while(0)
+#endif
+
+#if 0
+#define TTYERR(fmt,args...) serial_printf("ERROR![%s] %s %d: "fmt, __FILE__,__FUNCTION__,__LINE__,##args)
+#else
+#define TTYERR(fmt,args...) do{}while(0)
+#endif
+
+/*
+ * Buffers to hold input and output data
+ */
+#define USBTTY_BUFFER_SIZE 256
+static circbuf_t usbtty_input;
+static circbuf_t usbtty_output;
+
+
+/*
+ * Instance variables
+ */
+static device_t usbttydev;
+static struct usb_device_instance	 device_instance[1];
+static struct usb_bus_instance		 bus_instance[1];
+static struct usb_configuration_instance config_instance[NUM_CONFIGS];
+static struct usb_interface_instance	 interface_instance[NUM_INTERFACES];
+static struct usb_alternate_instance	 alternate_instance[NUM_INTERFACES];
+static struct usb_endpoint_instance	 endpoint_instance[NUM_ENDPOINTS+1]; /* one extra for control endpoint */
+
+/*
+ * Static allocation of urbs
+ */
+#define RECV_ENDPOINT 1
+#define TX_ENDPOINT 2
+
+/*
+ * Global flag
+ */
+int usbtty_configured_flag = 0;
+
+
+/*
+ * Descriptors
+ */
+static u8 wstrLang[4] = {4,USB_DT_STRING,0x9,0x4};
+static u8 wstrManufacturer[2 + 2*(sizeof(CONFIG_USBD_MANUFACTURER)-1)];
+static u8 wstrProduct[2 + 2*(sizeof(CONFIG_USBD_PRODUCT_NAME)-1)];
+static u8 wstrSerial[2 + 2*(sizeof(CONFIG_USBD_SERIAL_NUMBER)-1)];
+static u8 wstrConfiguration[2 + 2*(sizeof(CONFIG_USBD_CONFIGURATION_STR)-1)];
+static u8 wstrInterface[2 + 2*(sizeof(CONFIG_USBD_INTERFACE_STR)-1)];
+
+static struct usb_string_descriptor *usbtty_string_table[] = {
+  (struct usb_string_descriptor*)wstrLang,
+  (struct usb_string_descriptor*)wstrManufacturer,
+  (struct usb_string_descriptor*)wstrProduct,
+  (struct usb_string_descriptor*)wstrSerial,
+  (struct usb_string_descriptor*)wstrConfiguration,
+  (struct usb_string_descriptor*)wstrInterface
+};
+extern struct usb_string_descriptor **usb_strings; /* defined and used by omap1510_ep0.c */
+
+static struct usb_device_descriptor device_descriptor = {
+  bLength:	      sizeof(struct usb_device_descriptor),
+  bDescriptorType:    USB_DT_DEVICE,
+  bcdUSB:	      USB_BCD_VERSION,
+  bDeviceClass:	      USBTTY_DEVICE_CLASS,
+  bDeviceSubClass:    USBTTY_DEVICE_SUBCLASS,
+  bDeviceProtocol:    USBTTY_DEVICE_PROTOCOL,
+  bMaxPacketSize0:    EP0_MAX_PACKET_SIZE,
+  idVendor:	      CONFIG_USBD_VENDORID,
+  idProduct:	      CONFIG_USBD_PRODUCTID,
+  bcdDevice:	      USBTTY_BCD_DEVICE,
+  iManufacturer:      STR_MANUFACTURER,
+  iProduct:	      STR_PRODUCT,
+  iSerialNumber:      STR_SERIAL,
+  bNumConfigurations: NUM_CONFIGS
+  };
+static struct usb_configuration_descriptor config_descriptors[NUM_CONFIGS] = {
+  {
+    bLength:		 sizeof(struct usb_configuration_descriptor),
+    bDescriptorType:	 USB_DT_CONFIG,
+    wTotalLength:	 (sizeof(struct usb_configuration_descriptor)*NUM_CONFIGS) +
+			 (sizeof(struct usb_interface_descriptor)*NUM_INTERFACES) +
+			 (sizeof(struct usb_endpoint_descriptor)*NUM_ENDPOINTS),
+    bNumInterfaces:	 NUM_INTERFACES,
+    bConfigurationValue: 1,
+    iConfiguration:	 STR_CONFIG,
+    bmAttributes:	 BMATTRIBUTE_SELF_POWERED | BMATTRIBUTE_RESERVED,
+    bMaxPower:		 USBTTY_MAXPOWER
+  },
+};
+static struct usb_interface_descriptor interface_descriptors[NUM_INTERFACES] = {
+  {
+    bLength:		 sizeof(struct usb_interface_descriptor),
+    bDescriptorType:	 USB_DT_INTERFACE,
+    bInterfaceNumber:	 0,
+    bAlternateSetting:	 0,
+    bNumEndpoints:	 NUM_ENDPOINTS,
+    bInterfaceClass:	 USBTTY_INTERFACE_CLASS,
+    bInterfaceSubClass:	 USBTTY_INTERFACE_SUBCLASS,
+    bInterfaceProtocol:	 USBTTY_INTERFACE_PROTOCOL,
+    iInterface:		 STR_INTERFACE
+  },
+};
+static struct usb_endpoint_descriptor ep_descriptors[NUM_ENDPOINTS] = {
+  {
+    bLength:		 sizeof(struct usb_endpoint_descriptor),
+    bDescriptorType:	 USB_DT_ENDPOINT,
+    bEndpointAddress:	 CONFIG_USBD_SERIAL_OUT_ENDPOINT | USB_DIR_OUT,
+    bmAttributes:	 USB_ENDPOINT_XFER_BULK,
+    wMaxPacketSize:	 CONFIG_USBD_SERIAL_OUT_PKTSIZE,
+    bInterval:		 0
+  },
+  {
+    bLength:		 sizeof(struct usb_endpoint_descriptor),
+    bDescriptorType:	 USB_DT_ENDPOINT,
+    bEndpointAddress:	 CONFIG_USBD_SERIAL_IN_ENDPOINT | USB_DIR_IN,
+    bmAttributes:	 USB_ENDPOINT_XFER_BULK,
+    wMaxPacketSize:	 CONFIG_USBD_SERIAL_IN_PKTSIZE,
+    bInterval:		 0
+  },
+  {
+    bLength:		 sizeof(struct usb_endpoint_descriptor),
+    bDescriptorType:	 USB_DT_ENDPOINT,
+    bEndpointAddress:	 CONFIG_USBD_SERIAL_INT_ENDPOINT | USB_DIR_IN,
+    bmAttributes:	 USB_ENDPOINT_XFER_INT,
+    wMaxPacketSize:	 CONFIG_USBD_SERIAL_INT_PKTSIZE,
+    bInterval:		 0
+  },
+};
+static struct usb_endpoint_descriptor *ep_descriptor_ptrs[NUM_ENDPOINTS] = {
+  &(ep_descriptors[0]),
+  &(ep_descriptors[1]),
+  &(ep_descriptors[2]),
+};
+
+/* utility function for converting char* to wide string used by USB */
+static void str2wide (char *str, u16 * wide)
+{
+	int i;
+
+	for (i = 0; i < strlen (str) && str[i]; i++)
+		wide[i] = (u16) str[i];
+}
+
+/*
+ * Prototypes
+ */
+static void usbtty_init_strings (void);
+static void usbtty_init_instances (void);
+static void usbtty_init_endpoints (void);
+
+static void usbtty_event_handler (struct usb_device_instance *device,
+				  usb_device_event_t event, int data);
+static int usbtty_configured (void);
+
+static int write_buffer (circbuf_t * buf);
+static int fill_buffer (circbuf_t * buf);
+
+void usbtty_poll (void);
+static void pretend_interrupts (void);
+
+
+/*
+ * Test whether a character is in the RX buffer
+ */
+int usbtty_tstc (void)
+{
+	usbtty_poll ();
+	return (usbtty_input.size > 0);
+}
+
+/*
+ * Read a single byte from the usb client port. Returns 1 on success, 0
+ * otherwise. When the function is succesfull, the character read is
+ * written into its argument c.
+ */
+int usbtty_getc (void)
+{
+	char c;
+
+	while (usbtty_input.size <= 0) {
+		usbtty_poll ();
+	}
+
+	buf_pop (&usbtty_input, &c, 1);
+	return c;
+}
+
+/*
+ * Output a single byte to the usb client port.
+ */
+void usbtty_putc (const char c)
+{
+	buf_push (&usbtty_output, &c, 1);
+	/* If \n, also do \r */
+	if (c == '\n')
+		buf_push (&usbtty_output, "\r", 1);
+
+	/* Poll at end to handle new data... */
+	if ((usbtty_output.size + 2) >= usbtty_output.totalsize) {
+		usbtty_poll ();
+	}
+}
+
+
+/* usbtty_puts() helper function for finding the next '\n' in a string */
+static int next_nl_pos (const char *s)
+{
+	int i;
+
+	for (i = 0; s[i] != '\0'; i++) {
+		if (s[i] == '\n')
+			return i;
+	}
+	return i;
+}
+
+/*
+ * Output a string to the usb client port.
+ */
+static void __usbtty_puts (const char *str, int len)
+{
+	int maxlen = usbtty_output.totalsize;
+	int space, n;
+
+	/* break str into chunks < buffer size, if needed */
+	while (len > 0) {
+		space = maxlen - usbtty_output.size;
+
+		/* Empty buffer here, if needed, to ensure space... */
+		if (space <= 0) {
+			write_buffer (&usbtty_output);
+			space = maxlen - usbtty_output.size;
+			if (space <= 0) {
+				space = len;	/* allow old data to be overwritten. */
+			}
+		}
+
+		n = MIN (space, MIN (len, maxlen));
+		buf_push (&usbtty_output, str, n);
+
+		str += n;
+		len -= n;
+	}
+}
+
+void usbtty_puts (const char *str)
+{
+	int n;
+	int len = strlen (str);
+
+	/* add '\r' for each '\n' */
+	while (len > 0) {
+		n = next_nl_pos (str);
+
+		if (str[n] == '\n') {
+			__usbtty_puts (str, n + 1);
+			__usbtty_puts ("\r", 1);
+			str += (n + 1);
+			len -= (n + 1);
+		} else {
+			/* No \n found.	 All done. */
+			__usbtty_puts (str, n);
+			break;
+		}
+	}
+
+	/* Poll at end to handle new data... */
+	usbtty_poll ();
+}
+
+/*
+ * Initialize the usb client port.
+ *
+ */
+int drv_usbtty_init (void)
+{
+	int rc;
+
+
+	/* prepare buffers... */
+	buf_init (&usbtty_input, USBTTY_BUFFER_SIZE);
+	buf_init (&usbtty_output, USBTTY_BUFFER_SIZE);
+
+	/* Now, set up USB controller and infrastructure */
+	udc_init ();		/* Basic USB initialization */
+
+	usbtty_init_strings ();
+	usbtty_init_instances ();
+
+	udc_startup_events (device_instance);	/* Enable our device, initialize udc pointers */
+	udc_connect ();		/* Enable pullup for host detection */
+
+	usbtty_init_endpoints ();
+
+	/* Device initialization */
+	memset (&usbttydev, 0, sizeof (usbttydev));
+
+	strcpy (usbttydev.name, "usbtty");
+	usbttydev.ext = 0;	/* No extensions */
+	usbttydev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_OUTPUT;
+	usbttydev.tstc = usbtty_tstc;	/* 'tstc' function */
+	usbttydev.getc = usbtty_getc;	/* 'getc' function */
+	usbttydev.putc = usbtty_putc;	/* 'putc' function */
+	usbttydev.puts = usbtty_puts;	/* 'puts' function */
+
+	rc = device_register (&usbttydev);
+
+	return (rc == 0) ? 1 : rc;
+}
+
+static void usbtty_init_strings (void)
+{
+	struct usb_string_descriptor *string;
+
+	string = (struct usb_string_descriptor *) wstrManufacturer;
+	string->bLength = sizeof (wstrManufacturer);
+	string->bDescriptorType = USB_DT_STRING;
+	str2wide (CONFIG_USBD_MANUFACTURER, string->wData);
+
+	string = (struct usb_string_descriptor *) wstrProduct;
+	string->bLength = sizeof (wstrProduct);
+	string->bDescriptorType = USB_DT_STRING;
+	str2wide (CONFIG_USBD_PRODUCT_NAME, string->wData);
+
+	string = (struct usb_string_descriptor *) wstrSerial;
+	string->bLength = sizeof (wstrSerial);
+	string->bDescriptorType = USB_DT_STRING;
+	str2wide (CONFIG_USBD_SERIAL_NUMBER, string->wData);
+
+	string = (struct usb_string_descriptor *) wstrConfiguration;
+	string->bLength = sizeof (wstrConfiguration);
+	string->bDescriptorType = USB_DT_STRING;
+	str2wide (CONFIG_USBD_CONFIGURATION_STR, string->wData);
+
+	string = (struct usb_string_descriptor *) wstrInterface;
+	string->bLength = sizeof (wstrInterface);
+	string->bDescriptorType = USB_DT_STRING;
+	str2wide (CONFIG_USBD_INTERFACE_STR, string->wData);
+
+	/* Now, initialize the string table for ep0 handling */
+	usb_strings = usbtty_string_table;
+}
+
+static void usbtty_init_instances (void)
+{
+	int i;
+
+	/* initialize device instance */
+	memset (device_instance, 0, sizeof (struct usb_device_instance));
+	device_instance->device_state = STATE_INIT;
+	device_instance->device_descriptor = &device_descriptor;
+	device_instance->event = usbtty_event_handler;
+	device_instance->bus = bus_instance;
+	device_instance->configurations = NUM_CONFIGS;
+	device_instance->configuration_instance_array = config_instance;
+
+	/* initialize bus instance */
+	memset (bus_instance, 0, sizeof (struct usb_bus_instance));
+	bus_instance->device = device_instance;
+	bus_instance->endpoint_array = endpoint_instance;
+	bus_instance->max_endpoints = 1;
+	bus_instance->maxpacketsize = 64;
+	bus_instance->serial_number_str = CONFIG_USBD_SERIAL_NUMBER;
+
+	/* configuration instance */
+	memset (config_instance, 0,
+		sizeof (struct usb_configuration_instance));
+	config_instance->interfaces = NUM_INTERFACES;
+	config_instance->configuration_descriptor = config_descriptors;
+	config_instance->interface_instance_array = interface_instance;
+
+	/* interface instance */
+	memset (interface_instance, 0,
+		sizeof (struct usb_interface_instance));
+	interface_instance->alternates = 1;
+	interface_instance->alternates_instance_array = alternate_instance;
+
+	/* alternates instance */
+	memset (alternate_instance, 0,
+		sizeof (struct usb_alternate_instance));
+	alternate_instance->interface_descriptor = interface_descriptors;
+	alternate_instance->endpoints = NUM_ENDPOINTS;
+	alternate_instance->endpoints_descriptor_array = ep_descriptor_ptrs;
+
+	/* endpoint instances */
+	memset (&endpoint_instance[0], 0,
+		sizeof (struct usb_endpoint_instance));
+	endpoint_instance[0].endpoint_address = 0;
+	endpoint_instance[0].rcv_packetSize = EP0_MAX_PACKET_SIZE;
+	endpoint_instance[0].rcv_attributes = USB_ENDPOINT_XFER_CONTROL;
+	endpoint_instance[0].tx_packetSize = EP0_MAX_PACKET_SIZE;
+	endpoint_instance[0].tx_attributes = USB_ENDPOINT_XFER_CONTROL;
+	udc_setup_ep (device_instance, 0, &endpoint_instance[0]);
+
+	for (i = 1; i <= NUM_ENDPOINTS; i++) {
+		memset (&endpoint_instance[i], 0,
+			sizeof (struct usb_endpoint_instance));
+
+		endpoint_instance[i].endpoint_address =
+			ep_descriptors[i - 1].bEndpointAddress;
+
+		endpoint_instance[i].rcv_packetSize =
+			ep_descriptors[i - 1].wMaxPacketSize;
+		endpoint_instance[i].rcv_attributes =
+			ep_descriptors[i - 1].bmAttributes;
+
+		endpoint_instance[i].tx_packetSize =
+			ep_descriptors[i - 1].wMaxPacketSize;
+		endpoint_instance[i].tx_attributes =
+			ep_descriptors[i - 1].bmAttributes;
+
+		urb_link_init (&endpoint_instance[i].rcv);
+		urb_link_init (&endpoint_instance[i].rdy);
+		urb_link_init (&endpoint_instance[i].tx);
+		urb_link_init (&endpoint_instance[i].done);
+
+		if (endpoint_instance[i].endpoint_address & USB_DIR_IN)
+			endpoint_instance[i].tx_urb =
+				usbd_alloc_urb (device_instance,
+						&endpoint_instance[i]);
+		else
+			endpoint_instance[i].rcv_urb =
+				usbd_alloc_urb (device_instance,
+						&endpoint_instance[i]);
+	}
+}
+
+static void usbtty_init_endpoints (void)
+{
+	int i;
+
+	bus_instance->max_endpoints = NUM_ENDPOINTS + 1;
+	for (i = 0; i <= NUM_ENDPOINTS; i++) {
+		udc_setup_ep (device_instance, i, &endpoint_instance[i]);
+	}
+}
+
+
+/*********************************************************************************/
+
+static struct urb *next_urb (struct usb_device_instance *device,
+			     struct usb_endpoint_instance *endpoint)
+{
+	struct urb *current_urb = NULL;
+	int space;
+
+	/* If there's a queue, then we should add to the last urb */
+	if (!endpoint->tx_queue) {
+		current_urb = endpoint->tx_urb;
+	} else {
+		/* Last urb from tx chain */
+		current_urb =
+			p2surround (struct urb, link, endpoint->tx.prev);
+	}
+
+	/* Make sure this one has enough room */
+	space = current_urb->buffer_length - current_urb->actual_length;
+	if (space > 0) {
+		return current_urb;
+	} else {		/* No space here */
+		/* First look at done list */
+		current_urb = first_urb_detached (&endpoint->done);
+		if (!current_urb) {
+			current_urb = usbd_alloc_urb (device, endpoint);
+		}
+
+		urb_append (&endpoint->tx, current_urb);
+		endpoint->tx_queue++;
+	}
+	return current_urb;
+}
+
+static int write_buffer (circbuf_t * buf)
+{
+	if (!usbtty_configured ()) {
+		return 0;
+	}
+
+	if (buf->size) {
+
+		struct usb_endpoint_instance *endpoint =
+			&endpoint_instance[TX_ENDPOINT];
+		struct urb *current_urb = NULL;
+		char *dest;
+
+		int space_avail;
+		int popnum, popped;
+		int total = 0;
+
+		/* Break buffer into urb sized pieces, and link each to the endpoint */
+		while (buf->size > 0) {
+			current_urb = next_urb (device_instance, endpoint);
+			if (!current_urb) {
+				TTYERR ("current_urb is NULL, buf->size %d\n",
+					buf->size);
+				return total;
+			}
+
+			dest = current_urb->buffer +
+				current_urb->actual_length;
+
+			space_avail =
+				current_urb->buffer_length -
+				current_urb->actual_length;
+			popnum = MIN (space_avail, buf->size);
+			if (popnum == 0)
+				break;
+
+			popped = buf_pop (buf, dest, popnum);
+			if (popped == 0)
+				break;
+			current_urb->actual_length += popped;
+			total += popped;
+
+			/* If endpoint->last == 0, then transfers have not started on this endpoint */
+			if (endpoint->last == 0) {
+				udc_endpoint_write (endpoint);
+			}
+
+		}		/* end while */
+		return total;
+	}			/* end if tx_urb */
+
+	return 0;
+}
+
+static int fill_buffer (circbuf_t * buf)
+{
+	struct usb_endpoint_instance *endpoint =
+		&endpoint_instance[RECV_ENDPOINT];
+
+	if (endpoint->rcv_urb && endpoint->rcv_urb->actual_length) {
+		unsigned int nb = endpoint->rcv_urb->actual_length;
+		char *src = (char *) endpoint->rcv_urb->buffer;
+
+		buf_push (buf, src, nb);
+		endpoint->rcv_urb->actual_length = 0;
+
+		return nb;
+	}
+
+	return 0;
+}
+
+static int usbtty_configured (void)
+{
+	return usbtty_configured_flag;
+}
+
+/*********************************************************************************/
+
+static void usbtty_event_handler (struct usb_device_instance *device,
+				  usb_device_event_t event, int data)
+{
+	switch (event) {
+	case DEVICE_RESET:
+	case DEVICE_BUS_INACTIVE:
+		usbtty_configured_flag = 0;
+		break;
+	case DEVICE_CONFIGURED:
+		usbtty_configured_flag = 1;
+		break;
+
+	case DEVICE_ADDRESS_ASSIGNED:
+		usbtty_init_endpoints ();
+
+	default:
+		break;
+	}
+}
+
+/*********************************************************************************/
+
+
+/*
+ * Since interrupt handling has not yet been implemented, we use this function
+ * to handle polling.  This is called by the tstc,getc,putc,puts routines to
+ * update the USB state.
+ */
+void usbtty_poll (void)
+{
+	/* New interrupts? */
+	pretend_interrupts ();
+
+	/* Write any output data to host buffer (do this before checking interrupts to avoid missing one) */
+	if (usbtty_configured ()) {
+		write_buffer (&usbtty_output);
+	}
+
+	/* New interrupts? */
+	pretend_interrupts ();
+
+	/* Check for new data from host.. (do this after checking interrupts to get latest data) */
+	if (usbtty_configured ()) {
+		fill_buffer (&usbtty_input);
+	}
+
+	/* New interrupts? */
+	pretend_interrupts ();
+}
+
+static void pretend_interrupts (void)
+{
+	/* Loop while we have interrupts.
+	 * If we don't do this, the input chain
+	 * polling delay is likely to miss
+	 * host requests.
+	 */
+	while (inw (UDC_IRQ_SRC) & ~UDC_SOF_Flg) {
+		/* Handle any new IRQs */
+		omap1510_udc_irq ();
+		omap1510_udc_noniso_irq ();
+	}
+}
+#endif
diff --git a/drivers/usbtty.h b/drivers/usbtty.h
new file mode 100644
index 0000000..79c2fe5
--- /dev/null
+++ b/drivers/usbtty.h
@@ -0,0 +1,64 @@
+/*
+ * (C) Copyright 2003
+ * Gerry Hamel, geh@ti.com, Texas Instruments
+ *
+ * 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
+ *
+ */
+
+#ifndef __USB_TTY_H__
+#define __USB_TTY_H__
+
+
+#include "usbdcore.h"
+#include "usbdcore_omap1510.h"
+
+
+#define NUM_CONFIGS    1
+#define NUM_INTERFACES 1
+#define NUM_ENDPOINTS  3
+
+#define EP0_MAX_PACKET_SIZE 64
+
+#define CONFIG_USBD_CONFIGURATION_STR "TTY via USB"
+#define CONFIG_USBD_INTERFACE_STR     "Simple Serial Data Interface - Bulk Mode"
+
+
+#define CONFIG_USBD_SERIAL_OUT_ENDPOINT 2
+#define CONFIG_USBD_SERIAL_OUT_PKTSIZE	64
+#define CONFIG_USBD_SERIAL_IN_ENDPOINT	1
+#define CONFIG_USBD_SERIAL_IN_PKTSIZE	64
+#define CONFIG_USBD_SERIAL_INT_ENDPOINT 5
+#define CONFIG_USBD_SERIAL_INT_PKTSIZE	16
+
+
+#define USBTTY_DEVICE_CLASS	COMMUNICATIONS_DEVICE_CLASS
+#define USBTTY_DEVICE_SUBCLASS	COMMUNICATIONS_NO_SUBCLASS
+#define USBTTY_DEVICE_PROTOCOL	COMMUNICATIONS_NO_PROTOCOL
+
+#define USBTTY_INTERFACE_CLASS	   0xFF /* Vendor Specific */
+#define USBTTY_INTERFACE_SUBCLASS  0x02
+#define USBTTY_INTERFACE_PROTOCOL  0x01
+
+#define USBTTY_BCD_DEVICE 0x0
+#define USBTTY_MAXPOWER	  0x0
+
+#define STR_MANUFACTURER 1
+#define STR_PRODUCT	 2
+#define STR_SERIAL	 3
+#define STR_CONFIG	 4
+#define STR_INTERFACE	 5
+
+#endif
diff --git a/include/circbuf.h b/include/circbuf.h
new file mode 100644
index 0000000..e10ed95
--- /dev/null
+++ b/include/circbuf.h
@@ -0,0 +1,40 @@
+/*
+ * (C) Copyright 2003
+ * Gerry Hamel, geh@ti.com, Texas Instruments
+ *
+ * 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
+ *
+ */
+
+#ifndef __CIRCBUF_H__
+#define __CIRCBUF_H__
+
+typedef struct circbuf {
+	unsigned int size;	/* current number of bytes held */
+	unsigned int totalsize; /* number of bytes allocated */
+
+	char *top;		/* pointer to current buffer start */
+	char *tail;		/* pointer to space for next element */
+
+	char *data;		/* all data */
+	char *end;		/* end of data buffer */
+} circbuf_t;
+
+int buf_init (circbuf_t * buf, unsigned int size);
+int buf_free (circbuf_t * buf);
+int buf_pop (circbuf_t * buf, char *dest, unsigned int len);
+int buf_push (circbuf_t * buf, const char *src, unsigned int len);
+
+#endif
diff --git a/include/configs/SX1.h b/include/configs/SX1.h
new file mode 100644
index 0000000..ca536c5
--- /dev/null
+++ b/include/configs/SX1.h
@@ -0,0 +1,177 @@
+/*
+ * (C) Copyright 2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.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
+ */
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * If we are developing, we might want to start armboot from ram
+ * so we MUST NOT initialize critical regs like mem-timing ...
+ */
+#define CONFIG_INIT_CRITICAL		/* undef for developing */
+
+/*
+ * High Level Configuration Options
+ * (easy to change)
+ */
+#define CONFIG_ARM925T	1		/* This is an arm925t CPU	*/
+#define CONFIG_OMAP	1		/* in a TI OMAP core	*/
+#define CONFIG_OMAP1510 1		/* which is in a 1510 (helen) */
+#define CONFIG_OMAP_SX1 1		/*	a SX1 Board  */
+
+/* input clock of PLL */
+#define CONFIG_SYS_CLK_FREQ	12000000	/* the SX1 has 12MHz input clock */
+
+#undef CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff */
+
+#define CONFIG_MISC_INIT_R
+
+#define CONFIG_CMDLINE_TAG	 1	/* enable passing of ATAGs	*/
+#define CONFIG_SETUP_MEMORY_TAGS 1
+#define CONFIG_INITRD_TAG	 1
+
+/*
+ * Size of malloc() pool
+ */
+#define CFG_MALLOC_LEN		(CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE	128	/* size in bytes reserved for initial data */
+
+/*
+ * Hardware drivers
+ */
+
+/*
+ * NS16550 Configuration
+ */
+#define CFG_NS16550
+#define CFG_NS16550_SERIAL
+#define CFG_NS16550_REG_SIZE	(-4)
+#define CFG_NS16550_CLK		(CONFIG_SYS_CLK_FREQ)	/* can be 12M/32Khz or 48Mhz  */
+#define CFG_NS16550_COM1	0xfffb0000		/* uart1, bluetooth uart on helen */
+
+/*
+ * select serial console configuration
+ */
+#define CONFIG_SERIAL1		1	/* we use SERIAL 1 on SX1 */
+
+/*
+ * USB device configuration
+ */
+#define CONFIG_USB_DEVICE	1
+#define CONFIG_USB_TTY		1
+
+#define CONFIG_USBD_VENDORID		0x1234
+#define CONFIG_USBD_PRODUCTID		0x5678
+#define CONFIG_USBD_MANUFACTURER	"Siemens"
+#define CONFIG_USBD_PRODUCT_NAME	"SX1"
+#define CONFIG_USBD_SERIAL_NUMBER	"000000000001"
+
+
+/*
+ * I2C configuration
+ */
+#define CONFIG_HARD_I2C
+#define CFG_I2C_SPEED		100000
+#define CFG_I2C_SLAVE		1
+#define CONFIG_DRIVER_OMAP1510_I2C
+
+#define CONFIG_ENV_OVERWRITE
+
+#define CONFIG_ENV_OVERWRITE
+#define CONFIG_CONS_INDEX	1
+#define CONFIG_BAUDRATE		115200
+#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+
+#define CONFIG_COMMANDS		(( CONFIG_CMD_DFL | \
+				   CFG_CMD_I2C ) & \
+				  ~CFG_CMD_NET)
+
+/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
+#include <cmd_confdefs.h>
+#include <configs/omap1510.h>
+
+#define CONFIG_BOOTDELAY	3
+#define CONFIG_BOOTARGS		"mem=16M console=ttyS0,115200n8 root=/dev/mtdblock3 rw"
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CFG_LONGHELP				/* undef to save memory		*/
+#define CFG_PROMPT		"SX1# " /* Monitor Command Prompt	*/
+#define CFG_CBSIZE		256		/* Console I/O Buffer Size	*/
+#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
+#define CFG_MAXARGS		16		/* max number of command args	*/
+#define CFG_BARGSIZE		CFG_CBSIZE	/* Boot Argument Buffer Size	*/
+
+#define CFG_MEMTEST_START	0x10000000	/* memtest works on	*/
+#define CFG_MEMTEST_END		0x12000000	/* 32 MB in DRAM	*/
+
+#undef	CFG_CLKS_IN_HZ		/* everything, incl board info, in Hz */
+
+#define CFG_LOAD_ADDR		0x10000000	/* default load address */
+
+/* The 1510 has 3 timers, they can be driven by the RefClk (12Mhz) or by DPLL1.
+ * This time is further subdivided by a local divisor.
+ */
+#define CFG_TIMERBASE	0xFFFEC500	    /* use timer 1 */
+#define CFG_PVT		7		    /* 2^(pvt+1), divide by 256 */
+#define CFG_HZ			((CONFIG_SYS_CLK_FREQ)/(2 << CFG_PVT))
+
+/*-----------------------------------------------------------------------
+ * Stack sizes
+ *
+ * The stack sizes are set up in start.S using the settings below
+ */
+#define CONFIG_STACKSIZE	(128*1024)	/* regular stack */
+#ifdef CONFIG_USE_IRQ
+#define CONFIG_STACKSIZE_IRQ	(4*1024)	/* IRQ stack */
+#define CONFIG_STACKSIZE_FIQ	(4*1024)	/* FIQ stack */
+#endif
+
+/*-----------------------------------------------------------------------
+ * Physical Memory Map
+ */
+#define CONFIG_NR_DRAM_BANKS	1	   /* we have 1 bank of DRAM */
+#define PHYS_SDRAM_1		0x10000000 /* SDRAM Bank #1 */
+#define PHYS_SDRAM_1_SIZE	0x02000000 /* 32 MB */
+
+#define PHYS_FLASH_1		0x00000000 /* Flash Bank #1 */
+#define PHYS_FLASH_2		0x04000000 /* Flash Bank #2 */
+
+#define CFG_FLASH_BASE		PHYS_FLASH_1
+
+/*-----------------------------------------------------------------------
+ * FLASH and environment organization
+ */
+#define CFG_MAX_FLASH_BANKS	2	/* max number of memory banks */
+#define CFG_MAX_FLASH_SECT	(128)	/* max number of sectors on one chip */
+#define CFG_ENV_ADDR		(CFG_FLASH_BASE + 0x020000) /* addr of environment */
+
+/* timeout values are in ticks */
+#define CFG_FLASH_ERASE_TOUT	(20*CFG_HZ) /* Timeout for Flash Erase */
+#define CFG_FLASH_WRITE_TOUT	(20*CFG_HZ) /* Timeout for Flash Write */
+
+#define CFG_ENV_IS_IN_FLASH	1
+#define CFG_ENV_SIZE		0x20000 /* Total Size of Environment Sector */
+#define CFG_ENV_OFFSET		0x20000 /* environment starts here  */
+
+#endif	/* __CONFIG_H */
diff --git a/include/configs/omap1510.h b/include/configs/omap1510.h
index 2658135..6787b19 100644
--- a/include/configs/omap1510.h
+++ b/include/configs/omap1510.h
@@ -179,7 +179,7 @@
 
 #define USB_OTG_CTRL			0xFFFB040C
 #define USB_TRANSCEIVER_CTRL	0xFFFE1064
-#define PULL_DWN_CTRL_4	0xFFFE10AC
+#define PULL_DWN_CTRL_4 0xFFFE10AC
 #define PU_PD_SEL_0		0xFFFE10B4
 #define PU_PD_SEL_1		0xFFFE10B8
 #define PU_PD_SEL_2		0xFFFE10BC
@@ -221,6 +221,89 @@
 
 #define OMAP_LCD_CONTROL	TI925_LCD_CONTROL
 
+/* I2C Registers */
+
+#define I2C_BASE		0xfffb3800
+
+#define I2C_REV			(I2C_BASE + 0x00)
+#define I2C_IE			(I2C_BASE + 0x04)
+#define I2C_STAT		(I2C_BASE + 0x08)
+#define I2C_IV			(I2C_BASE + 0x0c)
+#define I2C_BUF			(I2C_BASE + 0x14)
+#define I2C_CNT			(I2C_BASE + 0x18)
+#define I2C_DATA		(I2C_BASE + 0x1c)
+#define I2C_CON			(I2C_BASE + 0x24)
+#define I2C_OA			(I2C_BASE + 0x28)
+#define I2C_SA			(I2C_BASE + 0x2c)
+#define I2C_PSC			(I2C_BASE + 0x30)
+#define I2C_SCLL		(I2C_BASE + 0x34)
+#define I2C_SCLH		(I2C_BASE + 0x38)
+#define I2C_SYSTEST		(I2C_BASE + 0x3c)
+
+/* I2C masks */
+
+/* I2C Interrupt Enable Register (I2C_IE): */
+
+#define I2C_IE_XRDY_IE	(1 << 4)	/* Transmit data ready interrupt enable */
+#define I2C_IE_RRDY_IE	(1 << 3)	/* Receive data ready interrupt enable */
+#define I2C_IE_ARDY_IE	(1 << 2)	/* Register access ready interrupt enable */
+#define I2C_IE_NACK_IE	(1 << 1)	/* No acknowledgment interrupt enable */
+#define I2C_IE_AL_IE	(1 << 0)	/* Arbitration lost interrupt enable */
+
+/* I2C Status Register (I2C_STAT): */
+
+#define I2C_STAT_SBD	(1 << 15)	/* Single byte data */
+#define I2C_STAT_BB	(1 << 12)	/* Bus busy */
+#define I2C_STAT_ROVR	(1 << 11)	/* Receive overrun */
+#define I2C_STAT_XUDF	(1 << 10)	/* Transmit underflow */
+#define I2C_STAT_AAS	(1 << 9)	/* Address as slave */
+#define I2C_STAT_AD0	(1 << 8)	/* Address zero */
+#define I2C_STAT_XRDY	(1 << 4)	/* Transmit data ready */
+#define I2C_STAT_RRDY	(1 << 3)	/* Receive data ready */
+#define I2C_STAT_ARDY	(1 << 2)	/* Register access ready */
+#define I2C_STAT_NACK	(1 << 1)	/* No acknowledgment interrupt enable */
+#define I2C_STAT_AL	(1 << 0)	/* Arbitration lost interrupt enable */
+
+/* I2C Interrupt Vector Register (I2C_IV): */
+
+/* I2C Interrupt Code Register (I2C_INTCODE): */
+
+#define I2C_INTCODE_MASK	7
+#define I2C_INTCODE_NONE	0
+#define I2C_INTCODE_AL		1	/* Arbitration lost */
+#define I2C_INTCODE_NAK		2	/* No acknowledgement/general call */
+#define I2C_INTCODE_ARDY	3	/* Register access ready */
+#define I2C_INTCODE_RRDY	4	/* Rcv data ready */
+#define I2C_INTCODE_XRDY	5	/* Xmit data ready */
+
+/* I2C Buffer Configuration Register (I2C_BUF): */
+
+#define I2C_BUF_RDMA_EN		(1 << 15)	/* Receive DMA channel enable */
+#define I2C_BUF_XDMA_EN		(1 << 7)	/* Transmit DMA channel enable */
+
+/* I2C Configuration Register (I2C_CON): */
+
+#define I2C_CON_EN	(1 << 15)	/* I2C module enable */
+#define I2C_CON_BE	(1 << 14)	/* Big endian mode */
+#define I2C_CON_STB	(1 << 11)	/* Start byte mode (master mode only) */
+#define I2C_CON_MST	(1 << 10)	/* Master/slave mode */
+#define I2C_CON_TRX	(1 << 9)	/* Transmitter/receiver mode (master mode only) */
+#define I2C_CON_XA	(1 << 8)	/* Expand address */
+#define I2C_CON_RM	(1 << 2)	/* Repeat mode (master mode only) */
+#define I2C_CON_STP	(1 << 1)	/* Stop condition (master mode only) */
+#define I2C_CON_STT	(1 << 0)	/* Start condition (master mode only) */
+
+/* I2C System Test Register (I2C_SYSTEST): */
+
+#define I2C_SYSTEST_ST_EN	(1 << 15)	/* System test enable */
+#define I2C_SYSTEST_FREE	(1 << 14)	/* Free running mode (on breakpoint) */
+#define I2C_SYSTEST_TMODE_MASK	(3 << 12)	/* Test mode select */
+#define I2C_SYSTEST_TMODE_SHIFT (12)		/* Test mode select */
+#define I2C_SYSTEST_SCL_I	(1 << 3)	/* SCL line sense input value */
+#define I2C_SYSTEST_SCL_O	(1 << 2)	/* SCL line drive output value */
+#define I2C_SYSTEST_SDA_I	(1 << 1)	/* SDA line sense input value */
+#define I2C_SYSTEST_SDA_O	(1 << 0)	/* SDA line drive output value */
+
 /*
  * MMC/SD Host Controller Registers
  */
@@ -696,3 +779,12 @@ int cpu_type(void);
 
 #define IRQ_LEVEL_INT		1
 #define IRQ_EDGE_INT		0
+
+/* Macros to access registers */
+#define outb(v,p) *(volatile u8 *) (p) = v
+#define outw(v,p) *(volatile u16 *) (p) = v
+#define outl(v,p) *(volatile u32 *) (p) = v
+
+#define inb(p)	*(volatile u8 *) (p)
+#define inw(p)	*(volatile u16 *) (p)
+#define inl(p)	*(volatile u32 *) (p)
diff --git a/include/devices.h b/include/devices.h
index a27c4e8..9f2a0c3 100644
--- a/include/devices.h
+++ b/include/devices.h
@@ -105,5 +105,8 @@ int	drv_video_init (void);
 #ifdef CONFIG_KEYBOARD
 int	drv_keyboard_init (void);
 #endif
+#ifdef CONFIG_USB_TTY
+int	drv_usbtty_init (void);
+#endif
 
 #endif	/* _DEVICES_H_ */
diff --git a/include/usbdcore.h b/include/usbdcore.h
new file mode 100644
index 0000000..6e92df1
--- /dev/null
+++ b/include/usbdcore.h
@@ -0,0 +1,671 @@
+/*
+ * (C) Copyright 2003
+ * Gerry Hamel, geh@ti.com, Texas Instruments
+ *
+ * Based on linux/drivers/usbd/usbd.h
+ *
+ * Copyright (c) 2000, 2001, 2002 Lineo
+ * Copyright (c) 2001 Hewlett Packard
+ *
+ * By:
+ *	Stuart Lynne <sl@lineo.com>,
+ *	Tom Rushworth <tbr@lineo.com>,
+ *	Bruce Balden <balden@lineo.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#ifndef __USBDCORE_H__
+#define __USBDCORE_H__
+
+#include <common.h>
+#include "usbdescriptors.h"
+
+
+#define MAX_URBS_QUEUED 5
+
+
+#if 1
+#define usberr(fmt,args...) serial_printf("ERROR: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
+#else
+#define usberr(fmt,args...) do{}while(0)
+#endif
+
+#if 0
+#define usbdbg(fmt,args...) serial_printf("debug: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
+#else
+#define usbdbg(fmt,args...) do{}while(0)
+#endif
+
+#if 0
+#define usbinfo(fmt,args...) serial_printf("info: %s(), %d: "fmt"\n",__FUNCTION__,__LINE__,##args)
+#else
+#define usbinfo(fmt,args...) do{}while(0)
+#endif
+
+#ifndef le16_to_cpu
+#define le16_to_cpu(x)	(x)
+#endif
+
+#ifndef inb
+#define inb(p)	     (*(volatile u8*)(p))
+#endif
+
+#ifndef outb
+#define outb(val,p)  (*(volatile u8*)(p) = (val))
+#endif
+
+#ifndef inw
+#define inw(p)	     (*(volatile u16*)(p))
+#endif
+
+#ifndef outw
+#define outw(val,p)  (*(volatile u16*)(p) = (val))
+#endif
+
+#ifndef inl
+#define inl(p)	     (*(volatile u32*)(p))
+#endif
+
+#ifndef outl
+#define outl(val,p)  (*(volatile u32*)(p) = (val))
+#endif
+
+#ifndef insw
+#define insw(p,to,len)	   mmio_insw(p,to,len)
+#endif
+
+#ifndef outsw
+#define outsw(p,from,len)  mmio_outsw(p,from,len)
+#endif
+
+#ifndef insb
+#define insb(p,to,len)	   mmio_insb(p,to,len)
+#endif
+
+#ifndef mmio_insw
+#define mmio_insw(r,b,l)	({	int __i ;  \
+					u16 *__b2;  \
+					__b2 = (u16 *) b;  \
+					for (__i = 0; __i < l; __i++) {	 \
+					  *(__b2 + __i) = inw(r);  \
+					};  \
+				})
+#endif
+
+#ifndef mmio_outsw
+#define mmio_outsw(r,b,l)	({	int __i; \
+					u16 *__b2; \
+					__b2 = (u16 *) b; \
+					for (__i = 0; __i < l; __i++) { \
+					    outw( *(__b2 + __i), r); \
+					} \
+				})
+#endif
+
+#ifndef mmio_insb
+#define mmio_insb(r,b,l)	({	int __i ;  \
+					u8 *__b2;  \
+					__b2 = (u8 *) b;  \
+					for (__i = 0; __i < l; __i++) {	 \
+					  *(__b2 + __i) = inb(r);  \
+					};  \
+				})
+#endif
+
+#ifndef MIN
+#define MIN(a,b) ((a) < (b) ? (a) : (b))
+#endif
+#ifndef MAX
+#define MAX(a,b) ((a) > (b) ? (a) : (b))
+#endif
+
+
+/*
+ * Structure member address manipulation macros.
+ * These are used by client code (code using the urb_link routines), since
+ * the urb_link structure is embedded in the client data structures.
+ *
+ * Note: a macro offsetof equivalent to member_offset is defined in stddef.h
+ *	 but this is kept here for the sake of portability.
+ *
+ * p2surround returns a pointer to the surrounding structure given
+ * type of the surrounding structure, the name memb of the structure
+ * member pointed at by ptr.  For example, if you have:
+ *
+ *	struct foo {
+ *	    int x;
+ *	    float y;
+ *	    char z;
+ *	} thingy;
+ *
+ *	char *cp = &thingy.z;
+ *
+ * then
+ *
+ *	&thingy == p2surround(struct foo, z, cp)
+ *
+ * Clear?
+ */
+#define _cv_(ptr)		  ((char*)(void*)(ptr))
+#define member_offset(type,memb)  (_cv_(&(((type*)0)->memb))-(char*)0)
+#define p2surround(type,memb,ptr) ((type*)(void*)(_cv_(ptr)-member_offset(type,memb)))
+
+struct urb;
+
+struct usb_endpoint_instance;
+struct usb_interface_instance;
+struct usb_configuration_instance;
+struct usb_device_instance;
+struct usb_bus_instance;
+
+/*
+ * Device and/or Interface Class codes
+ */
+#define USB_CLASS_PER_INTERFACE		0	/* for DeviceClass */
+#define USB_CLASS_AUDIO			1
+#define USB_CLASS_COMM			2
+#define USB_CLASS_HID			3
+#define USB_CLASS_PHYSICAL		5
+#define USB_CLASS_PRINTER		7
+#define USB_CLASS_MASS_STORAGE		8
+#define USB_CLASS_HUB			9
+#define USB_CLASS_DATA			10
+#define USB_CLASS_APP_SPEC		0xfe
+#define USB_CLASS_VENDOR_SPEC		0xff
+
+/*
+ * USB types
+ */
+#define USB_TYPE_STANDARD		(0x00 << 5)
+#define USB_TYPE_CLASS			(0x01 << 5)
+#define USB_TYPE_VENDOR			(0x02 << 5)
+#define USB_TYPE_RESERVED		(0x03 << 5)
+
+/*
+ * USB recipients
+ */
+#define USB_RECIP_DEVICE		0x00
+#define USB_RECIP_INTERFACE		0x01
+#define USB_RECIP_ENDPOINT		0x02
+#define USB_RECIP_OTHER			0x03
+
+/*
+ * USB directions
+ */
+#define USB_DIR_OUT			0
+#define USB_DIR_IN			0x80
+
+/*
+ * Descriptor types
+ */
+#define USB_DT_DEVICE			0x01
+#define USB_DT_CONFIG			0x02
+#define USB_DT_STRING			0x03
+#define USB_DT_INTERFACE		0x04
+#define USB_DT_ENDPOINT			0x05
+
+#define USB_DT_HID			(USB_TYPE_CLASS | 0x01)
+#define USB_DT_REPORT			(USB_TYPE_CLASS | 0x02)
+#define USB_DT_PHYSICAL			(USB_TYPE_CLASS | 0x03)
+#define USB_DT_HUB			(USB_TYPE_CLASS | 0x09)
+
+/*
+ * Descriptor sizes per descriptor type
+ */
+#define USB_DT_DEVICE_SIZE		18
+#define USB_DT_CONFIG_SIZE		9
+#define USB_DT_INTERFACE_SIZE		9
+#define USB_DT_ENDPOINT_SIZE		7
+#define USB_DT_ENDPOINT_AUDIO_SIZE	9	/* Audio extension */
+#define USB_DT_HUB_NONVAR_SIZE		7
+#define USB_DT_HID_SIZE			9
+
+/*
+ * Endpoints
+ */
+#define USB_ENDPOINT_NUMBER_MASK	0x0f	/* in bEndpointAddress */
+#define USB_ENDPOINT_DIR_MASK		0x80
+
+#define USB_ENDPOINT_XFERTYPE_MASK	0x03	/* in bmAttributes */
+#define USB_ENDPOINT_XFER_CONTROL	0
+#define USB_ENDPOINT_XFER_ISOC		1
+#define USB_ENDPOINT_XFER_BULK		2
+#define USB_ENDPOINT_XFER_INT		3
+
+/*
+ * USB Packet IDs (PIDs)
+ */
+#define USB_PID_UNDEF_0			       0xf0
+#define USB_PID_OUT			       0xe1
+#define USB_PID_ACK			       0xd2
+#define USB_PID_DATA0			       0xc3
+#define USB_PID_PING			       0xb4	/* USB 2.0 */
+#define USB_PID_SOF			       0xa5
+#define USB_PID_NYET			       0x96	/* USB 2.0 */
+#define USB_PID_DATA2			       0x87	/* USB 2.0 */
+#define USB_PID_SPLIT			       0x78	/* USB 2.0 */
+#define USB_PID_IN			       0x69
+#define USB_PID_NAK			       0x5a
+#define USB_PID_DATA1			       0x4b
+#define USB_PID_PREAMBLE		       0x3c	/* Token mode */
+#define USB_PID_ERR			       0x3c	/* USB 2.0: handshake mode */
+#define USB_PID_SETUP			       0x2d
+#define USB_PID_STALL			       0x1e
+#define USB_PID_MDATA			       0x0f	/* USB 2.0 */
+
+/*
+ * Standard requests
+ */
+#define USB_REQ_GET_STATUS		0x00
+#define USB_REQ_CLEAR_FEATURE		0x01
+#define USB_REQ_SET_FEATURE		0x03
+#define USB_REQ_SET_ADDRESS		0x05
+#define USB_REQ_GET_DESCRIPTOR		0x06
+#define USB_REQ_SET_DESCRIPTOR		0x07
+#define USB_REQ_GET_CONFIGURATION	0x08
+#define USB_REQ_SET_CONFIGURATION	0x09
+#define USB_REQ_GET_INTERFACE		0x0A
+#define USB_REQ_SET_INTERFACE		0x0B
+#define USB_REQ_SYNCH_FRAME		0x0C
+
+#define USBD_DEVICE_REQUESTS(x) (((unsigned int)x <= USB_REQ_SYNCH_FRAME) ? usbd_device_requests[x] : "UNKNOWN")
+
+/*
+ * HID requests
+ */
+#define USB_REQ_GET_REPORT		0x01
+#define USB_REQ_GET_IDLE		0x02
+#define USB_REQ_GET_PROTOCOL		0x03
+#define USB_REQ_SET_REPORT		0x09
+#define USB_REQ_SET_IDLE		0x0A
+#define USB_REQ_SET_PROTOCOL		0x0B
+
+
+/*
+ * USB Spec Release number
+ */
+
+#define USB_BCD_VERSION			0x0110
+
+
+/*
+ * Device Requests	(c.f Table 9-2)
+ */
+
+#define USB_REQ_DIRECTION_MASK		0x80
+#define USB_REQ_TYPE_MASK		0x60
+#define USB_REQ_RECIPIENT_MASK		0x1f
+
+#define USB_REQ_DEVICE2HOST		0x80
+#define USB_REQ_HOST2DEVICE		0x00
+
+#define USB_REQ_TYPE_STANDARD		0x00
+#define USB_REQ_TYPE_CLASS		0x20
+#define USB_REQ_TYPE_VENDOR		0x40
+
+#define USB_REQ_RECIPIENT_DEVICE	0x00
+#define USB_REQ_RECIPIENT_INTERFACE	0x01
+#define USB_REQ_RECIPIENT_ENDPOINT	0x02
+#define USB_REQ_RECIPIENT_OTHER		0x03
+
+/*
+ * get status bits
+ */
+
+#define USB_STATUS_SELFPOWERED		0x01
+#define USB_STATUS_REMOTEWAKEUP		0x02
+
+#define USB_STATUS_HALT			0x01
+
+/*
+ * descriptor types
+ */
+
+#define USB_DESCRIPTOR_TYPE_DEVICE			0x01
+#define USB_DESCRIPTOR_TYPE_CONFIGURATION		0x02
+#define USB_DESCRIPTOR_TYPE_STRING			0x03
+#define USB_DESCRIPTOR_TYPE_INTERFACE			0x04
+#define USB_DESCRIPTOR_TYPE_ENDPOINT			0x05
+#define USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER		0x06
+#define USB_DESCRIPTOR_TYPE_OTHER_SPEED_CONFIGURATION	0x07
+#define USB_DESCRIPTOR_TYPE_INTERFACE_POWER		0x08
+#define USB_DESCRIPTOR_TYPE_HID				0x21
+#define USB_DESCRIPTOR_TYPE_REPORT			0x22
+
+#define USBD_DEVICE_DESCRIPTORS(x) (((unsigned int)x <= USB_DESCRIPTOR_TYPE_INTERFACE_POWER) ? \
+		usbd_device_descriptors[x] : "UNKNOWN")
+
+/*
+ * standard feature selectors
+ */
+#define USB_ENDPOINT_HALT		0x00
+#define USB_DEVICE_REMOTE_WAKEUP	0x01
+#define USB_TEST_MODE			0x02
+
+
+/* USB Requests
+ *
+ */
+
+struct usb_device_request {
+	u8 bmRequestType;
+	u8 bRequest;
+	u16 wValue;
+	u16 wIndex;
+	u16 wLength;
+} __attribute__ ((packed));
+
+
+/* USB Status
+ *
+ */
+typedef enum urb_send_status {
+	SEND_IN_PROGRESS,
+	SEND_FINISHED_OK,
+	SEND_FINISHED_ERROR,
+	RECV_READY,
+	RECV_OK,
+	RECV_ERROR
+} urb_send_status_t;
+
+/*
+ * Device State (c.f USB Spec 2.0 Figure 9-1)
+ *
+ * What state the usb device is in.
+ *
+ * Note the state does not change if the device is suspended, we simply set a
+ * flag to show that it is suspended.
+ *
+ */
+typedef enum usb_device_state {
+	STATE_INIT,		/* just initialized */
+	STATE_CREATED,		/* just created */
+	STATE_ATTACHED,		/* we are attached */
+	STATE_POWERED,		/* we have seen power indication (electrical bus signal) */
+	STATE_DEFAULT,		/* we been reset */
+	STATE_ADDRESSED,	/* we have been addressed (in default configuration) */
+	STATE_CONFIGURED,	/* we have seen a set configuration device command */
+	STATE_UNKNOWN,		/* destroyed */
+} usb_device_state_t;
+
+#define USBD_DEVICE_STATE(x) (((unsigned int)x <= STATE_UNKNOWN) ? usbd_device_states[x] : "UNKNOWN")
+
+/*
+ * Device status
+ *
+ * Overall state
+ */
+typedef enum usb_device_status {
+	USBD_OPENING,		/* we are currently opening */
+	USBD_OK,		/* ok to use */
+	USBD_SUSPENDED,		/* we are currently suspended */
+	USBD_CLOSING,		/* we are currently closing */
+} usb_device_status_t;
+
+#define USBD_DEVICE_STATUS(x) (((unsigned int)x <= USBD_CLOSING) ? usbd_device_status[x] : "UNKNOWN")
+
+/*
+ * Device Events
+ *
+ * These are defined in the USB Spec (c.f USB Spec 2.0 Figure 9-1).
+ *
+ * There are additional events defined to handle some extra actions we need
+ * to have handled.
+ *
+ */
+typedef enum usb_device_event {
+
+	DEVICE_UNKNOWN,		/* bi - unknown event */
+	DEVICE_INIT,		/* bi  - initialize */
+	DEVICE_CREATE,		/* bi  - */
+	DEVICE_HUB_CONFIGURED,	/* bi  - bus has been plugged int */
+	DEVICE_RESET,		/* bi  - hub has powered our port */
+
+	DEVICE_ADDRESS_ASSIGNED,	/* ep0 - set address setup received */
+	DEVICE_CONFIGURED,	/* ep0 - set configure setup received */
+	DEVICE_SET_INTERFACE,	/* ep0 - set interface setup received */
+
+	DEVICE_SET_FEATURE,	/* ep0 - set feature setup received */
+	DEVICE_CLEAR_FEATURE,	/* ep0 - clear feature setup received */
+
+	DEVICE_DE_CONFIGURED,	/* ep0 - set configure setup received for ?? */
+
+	DEVICE_BUS_INACTIVE,	/* bi  - bus in inactive (no SOF packets) */
+	DEVICE_BUS_ACTIVITY,	/* bi  - bus is active again */
+
+	DEVICE_POWER_INTERRUPTION,	/* bi  - hub has depowered our port */
+	DEVICE_HUB_RESET,	/* bi  - bus has been unplugged */
+	DEVICE_DESTROY,		/* bi  - device instance should be destroyed */
+
+	DEVICE_HOTPLUG,		/* bi  - a hotplug event has occured */
+
+	DEVICE_FUNCTION_PRIVATE,	/* function - private */
+
+} usb_device_event_t;
+
+
+typedef struct urb_link {
+	struct urb_link *next;
+	struct urb_link *prev;
+} urb_link;
+
+/* USB Data structure - for passing data around.
+ *
+ * This is used for both sending and receiving data.
+ *
+ * The callback function is used to let the function driver know when
+ * transmitted data has been sent.
+ *
+ * The callback function is set by the alloc_recv function when an urb is
+ * allocated for receiving data for an endpoint and used to call the
+ * function driver to inform it that data has arrived.
+ */
+
+#define URB_BUF_SIZE 128 /* in linux we'd malloc this, but in u-boot we prefer static data */
+struct urb {
+
+	struct usb_endpoint_instance *endpoint;
+	struct usb_device_instance *device;
+
+	struct usb_device_request device_request;	/* contents of received SETUP packet */
+
+	struct urb_link link;	/* embedded struct for circular doubly linked list of urbs */
+
+	u8* buffer;
+	unsigned int buffer_length;
+	unsigned int actual_length;
+
+	urb_send_status_t status;
+	int data;
+
+	u16 buffer_data[URB_BUF_SIZE];	/* data received (OUT) or being sent (IN) */
+};
+
+/* Endpoint configuration
+ *
+ * Per endpoint configuration data. Used to track which function driver owns
+ * an endpoint.
+ *
+ */
+struct usb_endpoint_instance {
+	int endpoint_address;	/* logical endpoint address */
+
+	/* control */
+	int status;		/* halted */
+	int state;		/* available for use by bus interface driver */
+
+	/* receive side */
+	struct urb_link rcv;	/* received urbs */
+	struct urb_link rdy;	/* empty urbs ready to receive */
+	struct urb *rcv_urb;	/* active urb */
+	int rcv_attributes;	/* copy of bmAttributes from endpoint descriptor */
+	int rcv_packetSize;	/* maximum packet size from endpoint descriptor */
+	int rcv_transferSize;	/* maximum transfer size from function driver */
+	int rcv_queue;
+
+	/* transmit side */
+	struct urb_link tx;	/* urbs ready to transmit */
+	struct urb_link done;	/* transmitted urbs */
+	struct urb *tx_urb;	/* active urb */
+	int tx_attributes;	/* copy of bmAttributes from endpoint descriptor */
+	int tx_packetSize;	/* maximum packet size from endpoint descriptor */
+	int tx_transferSize;	/* maximum transfer size from function driver */
+	int tx_queue;
+
+	int sent;		/* data already sent */
+	int last;		/* data sent in last packet XXX do we need this */
+};
+
+struct usb_alternate_instance {
+	struct usb_interface_descriptor *interface_descriptor;
+
+	int endpoints;
+	int *endpoint_transfersize_array;
+	struct usb_endpoint_descriptor **endpoints_descriptor_array;
+};
+
+struct usb_interface_instance {
+	int alternates;
+	struct usb_alternate_instance *alternates_instance_array;
+};
+
+struct usb_configuration_instance {
+	int interfaces;
+	struct usb_configuration_descriptor *configuration_descriptor;
+	struct usb_interface_instance *interface_instance_array;
+};
+
+
+/* USB Device Instance
+ *
+ * For each physical bus interface we create a logical device structure. This
+ * tracks all of the required state to track the USB HOST's view of the device.
+ *
+ * Keep track of the device configuration for a real physical bus interface,
+ * this includes the bus interface, multiple function drivers, the current
+ * configuration and the current state.
+ *
+ * This will show:
+ *	the specific bus interface driver
+ *	the default endpoint 0 driver
+ *	the configured function driver
+ *	device state
+ *	device status
+ *	endpoint list
+ */
+
+struct usb_device_instance {
+
+	/* generic */
+	char *name;
+	struct usb_device_descriptor *device_descriptor;	/* per device descriptor */
+
+	void (*event) (struct usb_device_instance *device, usb_device_event_t event, int data);
+
+	/* bus interface */
+	struct usb_bus_instance *bus;	/* which bus interface driver */
+
+	/* configuration descriptors */
+	int configurations;
+	struct usb_configuration_instance *configuration_instance_array;
+
+	/* device state */
+	usb_device_state_t device_state;	/* current USB Device state */
+	usb_device_state_t device_previous_state;	/* current USB Device state */
+
+	u8 address;		/* current address (zero is default) */
+	u8 configuration;	/* current show configuration (zero is default) */
+	u8 interface;		/* current interface (zero is default) */
+	u8 alternate;		/* alternate flag */
+
+	usb_device_status_t status;	/* device status */
+
+	int urbs_queued;	/* number of submitted urbs */
+
+	/* Shouldn't need to make this atomic, all we need is a change indicator */
+	unsigned long usbd_rxtx_timestamp;
+	unsigned long usbd_last_rxtx_timestamp;
+
+};
+
+/* Bus Interface configuration structure
+ *
+ * This is allocated for each configured instance of a bus interface driver.
+ *
+ * The privdata pointer may be used by the bus interface driver to store private
+ * per instance state information.
+ */
+struct usb_bus_instance {
+
+	struct usb_device_instance *device;
+	struct usb_endpoint_instance *endpoint_array;	/* array of available configured endpoints */
+
+	int max_endpoints;	/* maximimum number of rx enpoints */
+	unsigned char			maxpacketsize;
+
+	unsigned int serial_number;
+	char *serial_number_str;
+	void *privdata;		/* private data for the bus interface */
+
+};
+
+extern char *usbd_device_events[];
+extern char *usbd_device_states[];
+extern char *usbd_device_status[];
+extern char *usbd_device_requests[];
+extern char *usbd_device_descriptors[];
+
+void urb_link_init (urb_link * ul);
+void urb_detach (struct urb *urb);
+urb_link *first_urb_link (urb_link * hd);
+struct urb *first_urb (urb_link * hd);
+struct urb *first_urb_detached (urb_link * hd);
+void urb_append (urb_link * hd, struct urb *urb);
+
+struct urb *usbd_alloc_urb (struct usb_device_instance *device, struct usb_endpoint_instance *endpoint);
+void	    usbd_dealloc_urb (struct urb *urb);
+
+/*
+ * usbd_device_event is used by bus interface drivers to tell the higher layers that
+ * certain events have taken place.
+ */
+void usbd_device_event_irq (struct usb_device_instance *conf, usb_device_event_t, int);
+void usbd_device_event (struct usb_device_instance *conf, usb_device_event_t, int);
+
+/* descriptors
+ *
+ * Various ways of finding descriptors based on the current device and any
+ * possible configuration / interface / endpoint for it.
+ */
+struct usb_configuration_descriptor *usbd_device_configuration_descriptor (struct usb_device_instance *, int, int);
+struct usb_function_instance *usbd_device_function_instance (struct usb_device_instance *, unsigned int);
+struct usb_interface_instance *usbd_device_interface_instance (struct usb_device_instance *, int, int, int);
+struct usb_alternate_instance *usbd_device_alternate_instance (struct usb_device_instance *, int, int, int, int);
+struct usb_interface_descriptor *usbd_device_interface_descriptor (struct usb_device_instance *, int, int, int, int);
+struct usb_endpoint_descriptor *usbd_device_endpoint_descriptor_index (struct usb_device_instance *, int, int, int, int, int);
+struct usb_class_descriptor *usbd_device_class_descriptor_index (struct usb_device_instance *, int, int, int, int, int);
+struct usb_class_report_descriptor *usbd_device_class_report_descriptor_index( struct usb_device_instance *, int , int , int , int , int );
+struct usb_endpoint_descriptor *usbd_device_endpoint_descriptor (struct usb_device_instance *, int, int, int, int, int);
+int				usbd_device_endpoint_transfersize (struct usb_device_instance *, int, int, int, int, int);
+struct usb_string_descriptor *usbd_get_string (u8);
+struct usb_device_descriptor *usbd_device_device_descriptor (struct usb_device_instance *, int);
+
+int usbd_endpoint_halted (struct usb_device_instance *device, int endpoint);
+void usbd_rcv_complete(struct usb_endpoint_instance *endpoint, int len, int urb_bad);
+void usbd_tx_complete (struct usb_endpoint_instance *endpoint);
+
+#endif
diff --git a/include/usbdcore_ep0.h b/include/usbdcore_ep0.h
new file mode 100644
index 0000000..3bec106
--- /dev/null
+++ b/include/usbdcore_ep0.h
@@ -0,0 +1,39 @@
+/*
+ * (C) Copyright 2003
+ * Gerry Hamel, geh@ti.com, Texas Instruments
+ *
+ * Based on
+ * linux/drivers/usbd/ep0.c
+ *
+ * Copyright (c) 2000, 2001, 2002 Lineo
+ * Copyright (c) 2001 Hewlett Packard
+ *
+ * By:
+ *	Stuart Lynne <sl@lineo.com>,
+ *	Tom Rushworth <tbr@lineo.com>,
+ *	Bruce Balden <balden@lineo.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#ifndef __USBDCORE_EP0_H__
+#define __USBDCORE_EP0_H__
+
+
+int ep0_recv_setup (struct urb *urb);
+
+
+#endif
diff --git a/include/usbdcore_omap1510.h b/include/usbdcore_omap1510.h
new file mode 100644
index 0000000..6ea3331
--- /dev/null
+++ b/include/usbdcore_omap1510.h
@@ -0,0 +1,183 @@
+/*
+ * (C) Copyright 2003
+ * Gerry Hamel, geh@ti.com, Texas Instruments
+ *
+ * Based on
+ * linux/drivers/usb/device/bi/omap.h
+ * Register definitions for TI OMAP1510 USB bus interface driver
+ *
+ * Author: MontaVista Software, Inc.
+ *	   source@mvista.com
+ *
+ * 2003 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#ifndef __USBDCORE_OMAP1510_H__
+#define __USBDCORE_OMAP1510_H__
+
+
+/*
+ * 13.2 MPU Register Map
+ */
+
+/* Table 13-1. USB Function Module Registers (endpoint) */
+#define UDC_BASE		     0xFFFB4000
+#define UDC_OFFSET(offset)	     (UDC_BASE + (offset))
+#define UDC_REV			     UDC_OFFSET(0x0)	/* Revision */
+#define UDC_EP_NUM		     UDC_OFFSET(0x4)	/* Endpoint selection */
+#define UDC_DATA		     UDC_OFFSET(0x08)	/* Data */
+#define UDC_CTRL		     UDC_OFFSET(0x0C)	/* Control */
+#define UDC_STAT_FLG		     UDC_OFFSET(0x10)	/* Status flag */
+#define UDC_RXFSTAT		     UDC_OFFSET(0x14)	/* Receive FIFO status */
+#define UDC_SYSCON1		     UDC_OFFSET(0x18)	/* System configuration 1 */
+#define UDC_SYSCON2		     UDC_OFFSET(0x1C)	/* System configuration 2 */
+#define UDC_DEVSTAT		     UDC_OFFSET(0x20)	/* Device status */
+#define UDC_SOF			     UDC_OFFSET(0x24)	/* Start of frame */
+#define UDC_IRQ_EN		     UDC_OFFSET(0x28)	/* Interrupt enable */
+#define UDC_DMA_IRQ_EN		     UDC_OFFSET(0x2C)	/* DMA interrupt enable */
+#define UDC_IRQ_SRC		     UDC_OFFSET(0x30)	/* Interrupt source */
+#define UDC_EPN_STAT		     UDC_OFFSET(0x34)	/* Endpoint interrupt status */
+#define UDC_DMAN_STAT		     UDC_OFFSET(0x3C)	/* DMA endpoint interrupt status */
+
+/* IRQ_EN register fields */
+#define UDC_Sof_IE		     (1 << 7)	/* Start-of-frame interrupt enabled */
+#define UDC_EPn_RX_IE		     (1 << 5)	/* Receive endpoint interrupt enabled */
+#define UDC_EPn_TX_IE		     (1 << 4)	/* Transmit endpoint interrupt enabled */
+#define UDC_DS_Chg_IE		     (1 << 3)	/* Device state changed interrupt enabled */
+#define UDC_EP0_IE		     (1 << 0)	/* EP0 transaction interrupt enabled */
+
+/* IRQ_SRC register fields */
+#define UDC_TXn_Done		     (1 << 10)	/* Transmit DMA channel n done */
+#define UDC_RXn_Cnt		     (1 << 9)	/* Receive DMA channel n transactions count */
+#define UDC_RXn_EOT		     (1 << 8)	/* Receive DMA channel n end of transfer */
+#define UDC_SOF_Flg		     (1 << 7)	/* Start-of-frame interrupt flag */
+#define UDC_EPn_RX		     (1 << 5)	/* Endpoint n OUT transaction */
+#define UDC_EPn_TX		     (1 << 4)	/* Endpoint n IN transaction */
+#define UDC_DS_Chg		     (1 << 3)	/* Device state changed */
+#define UDC_Setup		     (1 << 2)	/* Setup transaction */
+#define UDC_EP0_RX		     (1 << 1)	/* EP0 OUT transaction */
+#define UDC_EP0_TX		     (1 << 0)	/* EP0 IN transaction */
+
+/* DEVSTAT register fields, 14.2.9 */
+#define UDC_R_WK_OK		     (1 << 6)	/* Remote wakeup granted */
+#define UDC_USB_Reset		     (1 << 5)	/* USB reset signalling is active */
+#define UDC_SUS			     (1 << 4)	/* Suspended state */
+#define UDC_CFG			     (1 << 3)	/* Configured state */
+#define UDC_ADD			     (1 << 2)	/* Addressed state */
+#define UDC_DEF			     (1 << 1)	/* Default state */
+#define UDC_ATT			     (1 << 0)	/* Attached state */
+
+/* SYSCON1 register fields */
+#define UDC_Cfg_Lock		     (1 << 8)	/* Device configuration locked */
+#define UDC_Nak_En		     (1 << 4)	/* NAK enable */
+#define UDC_Self_Pwr		     (1 << 2)	/* Device is self-powered */
+#define UDC_Soff_Dis		     (1 << 1)	/* Shutoff disabled */
+#define UDC_Pullup_En		     (1 << 0)	/* External pullup enabled */
+
+/* SYSCON2 register fields */
+#define UDC_Rmt_Wkp		     (1 << 6)	/* Remote wakeup */
+#define UDC_Stall_Cmd		     (1 << 5)	/* Stall endpoint */
+#define UDC_Dev_Cfg		     (1 << 3)	/* Device configured */
+#define UDC_Clr_Cfg		     (1 << 2)	/* Clear configured */
+
+/*
+ * Select and enable endpoints
+ */
+
+/* Table 13-1. USB Function Module Registers (endpoint configuration) */
+#define UDC_EPBASE		     UDC_OFFSET(0x80)	/* Endpoints base address */
+#define UDC_EP0			     UDC_EPBASE /* Control endpoint configuration */
+#define UDC_EP_RX_BASE		     UDC_OFFSET(0x84)	/* Receive endpoints base address */
+#define UDC_EP_RX(endpoint)	     (UDC_EP_RX_BASE + ((endpoint) - 1) * 4)
+#define UDC_EP_TX_BASE		     UDC_OFFSET(0xC4)	/* Transmit endpoints base address */
+#define UDC_EP_TX(endpoint)	     (UDC_EP_TX_BASE + ((endpoint) - 1) * 4)
+
+/* EP_NUM register fields */
+#define UDC_Setup_Sel		     (1 << 6)	/* Setup FIFO select */
+#define UDC_EP_Sel		     (1 << 5)	/* TX/RX FIFO select */
+#define UDC_EP_Dir		     (1 << 4)	/* Endpoint direction */
+
+/* CTRL register fields */
+#define UDC_Clr_Halt		     (1 << 7)	/* Clear halt endpoint */
+#define UDC_Set_Halt		     (1 << 6)	/* Set halt endpoint */
+#define UDC_Set_FIFO_En		     (1 << 2)	/* Set FIFO enable */
+#define UDC_Clr_EP		     (1 << 1)	/* Clear endpoint */
+#define UDC_Reset_EP		     (1 << 0)	/* Reset endpoint */
+
+/* STAT_FLG register fields */
+#define UDC_Miss_In		     (1 << 14)
+#define UDC_Data_Flush		     (1 << 13)
+#define UDC_ISO_Err		     (1 << 12)
+#define UDC_ISO_FIFO_Empty	     (1 << 9)
+#define UDC_ISO_FIFO_Full	     (1 << 8)
+#define UDC_EP_Halted		     (1 << 6)
+#define UDC_STALL		     (1 << 5)
+#define UDC_NAK			     (1 << 4)
+#define UDC_ACK			     (1 << 3)
+#define UDC_FIFO_En		     (1 << 2)
+#define UDC_Non_ISO_FIFO_Empty	     (1 << 1)
+#define UDC_Non_ISO_FIFO_Full	     (1 << 0)
+
+/* EPn_RX register fields */
+#define UDC_EPn_RX_Valid	     (1 << 15)	/* valid */
+#define UDC_EPn_RX_Db		     (1 << 14)	/* double-buffer */
+#define UDC_EPn_RX_Iso		     (1 << 11)	/* isochronous */
+
+/* EPn_TX register fields */
+#define UDC_EPn_TX_Valid	     (1 << 15)	/* valid */
+#define UDC_EPn_TX_Db		     (1 << 14)	/* double-buffer */
+#define UDC_EPn_TX_Iso		     (1 << 11)	/* isochronous */
+
+#define EP0_PACKETSIZE		     0x40
+
+/* physical to logical endpoint mapping
+ * Physical endpoints are an index into device->bus->endpoint_array.
+ * Logical endpoints are endpoints 0 to 15 IN and OUT as defined in
+ * the USB specification.
+ *
+ *	physical ep	logical ep	direction	endpoint_address
+ *	0		0		IN and OUT	0x00
+ *	1 to 15		1 to 15		OUT		0x01 to 0x0f
+ *	16 to 30	1 to 15		IN		0x81 to 0x8f
+ */
+#define PHYS_EP_TO_EP_ADDR(ep) (((ep) < 16) ? (ep) : (((ep) - 15) | 0x80))
+#define EP_ADDR_TO_PHYS_EP(a) (((a) & 0x80) ? (((a) & ~0x80) + 15) : (a))
+
+/* MOD_CONF_CTRL_0 bits (FIXME: move to board hardware.h ?) */
+#define CONF_MOD_USB_W2FC_VBUS_MODE_R (1 << 17)
+
+/* Other registers (may be) related to USB */
+
+#define CLOCK_CTRL	    (0xFFFE0830)
+#define APLL_CTRL	    (0xFFFE084C)
+#define DPLL_CTRL	    (0xFFFE083C)
+#define SOFT_REQ	    (0xFFFE0834)
+#define STATUS_REQ	    (0xFFFE0840)
+
+/* FUNC_MUX_CTRL_0 bits related to USB */
+#define UDC_VBUS_CTRL	    (1 << 19)
+#define UDC_VBUS_MODE	    (1 << 18)
+
+
+void omap1510_udc_irq(void);
+void omap1510_udc_noniso_irq(void);
+
+
+/* Higher level functions for abstracting away from specific device */
+void udc_endpoint_write(struct usb_endpoint_instance *endpoint);
+
+int  udc_init (void);
+
+void udc_enable(struct usb_device_instance *device);
+void udc_disable(void);
+
+void udc_connect(void);
+void udc_disconnect(void);
+
+void udc_startup_events(struct usb_device_instance *device);
+void udc_setup_ep(struct usb_device_instance *device, unsigned int ep, struct usb_endpoint_instance *endpoint);
+
+#endif
diff --git a/include/usbdescriptors.h b/include/usbdescriptors.h
new file mode 100644
index 0000000..2d9f739
--- /dev/null
+++ b/include/usbdescriptors.h
@@ -0,0 +1,497 @@
+/*
+ * (C) Copyright 2003
+ * Gerry Hamel, geh@ti.com, Texas Instruments
+ *
+ * Based on
+ * linux/drivers/usbd/usb-function.h - USB Function
+ *
+ * Copyright (c) 2000, 2001, 2002 Lineo
+ * Copyright (c) 2001 Hewlett Packard
+ *
+ * By:
+ *	Stuart Lynne <sl@lineo.com>,
+ *	Tom Rushworth <tbr@lineo.com>,
+ *	Bruce Balden <balden@lineo.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/* USB Descriptors - Create a complete description of all of the
+ * function driver capabilities. These map directly to the USB descriptors.
+ *
+ * This heirarchy is created by the functions drivers and is passed to the
+ * usb-device driver when the function driver is registered.
+ *
+ *  device
+ *	configuration
+ *	     interface
+ *		alternate
+ *		     class
+ *		     class
+ *		alternate
+ *		     endpoint
+ *		     endpoint
+ *	     interface
+ *		alternate
+ *		     endpoint
+ *		     endpoint
+ *	configuration
+ *	     interface
+ *		alternate
+ *		     endpoint
+ *		     endpoint
+ *
+ *
+ * The configuration structures refer to the USB Configurations that will be
+ * made available to a USB HOST during the enumeration process.
+ *
+ * The USB HOST will select a configuration and optionally an interface with
+ * the usb set configuration and set interface commands.
+ *
+ * The selected interface (or the default interface if not specifically
+ * selected) will define the list of endpoints that will be used.
+ *
+ * The configuration and interfaces are stored in an array that is indexed
+ * by the specified configuratin or interface number minus one.
+ *
+ * A configuration number of zero is used to specify a return to the unconfigured
+ * state.
+ *
+ */
+
+
+#ifndef __USBDESCRIPTORS_H__
+#define __USBDESCRIPTORS_H__
+
+#include <asm/types.h>
+
+/*
+ * communications class types
+ *
+ * c.f. CDC  USB Class Definitions for Communications Devices
+ * c.f. WMCD USB CDC Subclass Specification for Wireless Mobile Communications Devices
+ *
+ */
+
+#define CLASS_BCD_VERSION		0x0110
+
+/* c.f. CDC 4.1 Table 14 */
+#define COMMUNICATIONS_DEVICE_CLASS	0x02
+
+/* c.f. CDC 4.2 Table 15 */
+#define COMMUNICATIONS_INTERFACE_CLASS	0x02
+
+/* c.f. CDC 4.3 Table 16 */
+#define COMMUNICATIONS_NO_SUBCLASS	0x00
+#define COMMUNICATIONS_DLCM_SUBCLASS	0x01
+#define COMMUNICATIONS_ACM_SUBCLASS	0x02
+#define COMMUNICATIONS_TCM_SUBCLASS	0x03
+#define COMMUNICATIONS_MCCM_SUBCLASS	0x04
+#define COMMUNICATIONS_CCM_SUBCLASS	0x05
+#define COMMUNICATIONS_ENCM_SUBCLASS	0x06
+#define COMMUNICATIONS_ANCM_SUBCLASS	0x07
+
+/* c.f. WMCD 5.1 */
+#define COMMUNICATIONS_WHCM_SUBCLASS	0x08
+#define COMMUNICATIONS_DMM_SUBCLASS	0x09
+#define COMMUNICATIONS_MDLM_SUBCLASS	0x0a
+#define COMMUNICATIONS_OBEX_SUBCLASS	0x0b
+
+/* c.f. CDC 4.6 Table 18 */
+#define DATA_INTERFACE_CLASS		0x0a
+
+/* c.f. CDC 4.7 Table 19 */
+#define COMMUNICATIONS_NO_PROTOCOL	0x00
+
+
+/* c.f. CDC 5.2.3 Table 24 */
+#define CS_INTERFACE			0x24
+#define CS_ENDPOINT			0x25
+
+/*
+ * bDescriptorSubtypes
+ *
+ * c.f. CDC 5.2.3 Table 25
+ * c.f. WMCD 5.3 Table 5.3
+ */
+
+#define USB_ST_HEADER			0x00
+#define USB_ST_CMF			0x01
+#define USB_ST_ACMF			0x02
+#define USB_ST_DLMF			0x03
+#define USB_ST_TRF			0x04
+#define USB_ST_TCLF			0x05
+#define USB_ST_UF			0x06
+#define USB_ST_CSF			0x07
+#define USB_ST_TOMF			0x08
+#define USB_ST_USBTF			0x09
+#define USB_ST_NCT			0x0a
+#define USB_ST_PUF			0x0b
+#define USB_ST_EUF			0x0c
+#define USB_ST_MCMF			0x0d
+#define USB_ST_CCMF			0x0e
+#define USB_ST_ENF			0x0f
+#define USB_ST_ATMNF			0x10
+
+#define USB_ST_WHCM			0x11
+#define USB_ST_MDLM			0x12
+#define USB_ST_MDLMD			0x13
+#define USB_ST_DMM			0x14
+#define USB_ST_OBEX			0x15
+#define USB_ST_CS			0x16
+#define USB_ST_CSD			0x17
+#define USB_ST_TCM			0x18
+
+/* endpoint modifiers
+ * static struct usb_endpoint_description function_default_A_1[] = {
+ *
+ *     {this_endpoint: 0, attributes: CONTROL,	 max_size: 8,  polling_interval: 0 },
+ *     {this_endpoint: 1, attributes: BULK,	 max_size: 64, polling_interval: 0, direction: IN},
+ *     {this_endpoint: 2, attributes: BULK,	 max_size: 64, polling_interval: 0, direction: OUT},
+ *     {this_endpoint: 3, attributes: INTERRUPT, max_size: 8,  polling_interval: 0},
+ *
+ *
+ */
+#define OUT		0x00
+#define IN		0x80
+
+#define CONTROL		0x00
+#define ISOCHRONOUS	0x01
+#define BULK		0x02
+#define INTERRUPT	0x03
+
+
+/* configuration modifiers
+ */
+#define BMATTRIBUTE_RESERVED		0x80
+#define BMATTRIBUTE_SELF_POWERED	0x40
+
+/*
+ * standard usb descriptor structures
+ */
+
+struct usb_endpoint_descriptor {
+	u8 bLength;
+	u8 bDescriptorType;	/* 0x5 */
+	u8 bEndpointAddress;
+	u8 bmAttributes;
+	u16 wMaxPacketSize;
+	u8 bInterval;
+} __attribute__ ((packed));
+
+struct usb_interface_descriptor {
+	u8 bLength;
+	u8 bDescriptorType;	/* 0x04 */
+	u8 bInterfaceNumber;
+	u8 bAlternateSetting;
+	u8 bNumEndpoints;
+	u8 bInterfaceClass;
+	u8 bInterfaceSubClass;
+	u8 bInterfaceProtocol;
+	u8 iInterface;
+} __attribute__ ((packed));
+
+struct usb_configuration_descriptor {
+	u8 bLength;
+	u8 bDescriptorType;	/* 0x2 */
+	u16 wTotalLength;
+	u8 bNumInterfaces;
+	u8 bConfigurationValue;
+	u8 iConfiguration;
+	u8 bmAttributes;
+	u8 bMaxPower;
+} __attribute__ ((packed));
+
+struct usb_device_descriptor {
+	u8 bLength;
+	u8 bDescriptorType;	/* 0x01 */
+	u16 bcdUSB;
+	u8 bDeviceClass;
+	u8 bDeviceSubClass;
+	u8 bDeviceProtocol;
+	u8 bMaxPacketSize0;
+	u16 idVendor;
+	u16 idProduct;
+	u16 bcdDevice;
+	u8 iManufacturer;
+	u8 iProduct;
+	u8 iSerialNumber;
+	u8 bNumConfigurations;
+} __attribute__ ((packed));
+
+struct usb_string_descriptor {
+	u8 bLength;
+	u8 bDescriptorType;	/* 0x03 */
+	u16 wData[0];
+} __attribute__ ((packed));
+
+struct usb_generic_descriptor {
+	u8 bLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;
+} __attribute__ ((packed));
+
+
+/*
+ * communications class descriptor structures
+ *
+ * c.f. CDC 5.2 Table 25c
+ */
+
+struct usb_class_function_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;
+} __attribute__ ((packed));
+
+struct usb_class_function_descriptor_generic {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;
+	u8 bmCapabilities;
+} __attribute__ ((packed));
+
+struct usb_class_header_function_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x00 */
+	u16 bcdCDC;
+} __attribute__ ((packed));
+
+struct usb_class_call_management_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x01 */
+	u8 bmCapabilities;
+	u8 bDataInterface;
+} __attribute__ ((packed));
+
+struct usb_class_abstract_control_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x02 */
+	u8 bmCapabilities;
+} __attribute__ ((packed));
+
+struct usb_class_direct_line_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x03 */
+} __attribute__ ((packed));
+
+struct usb_class_telephone_ringer_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x04 */
+	u8 bRingerVolSeps;
+	u8 bNumRingerPatterns;
+} __attribute__ ((packed));
+
+struct usb_class_telephone_call_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x05 */
+	u8 bmCapabilities;
+} __attribute__ ((packed));
+
+struct usb_class_union_function_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x06 */
+	u8 bMasterInterface;
+	u8 bSlaveInterface0[0];
+} __attribute__ ((packed));
+
+struct usb_class_country_selection_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x07 */
+	u8 iCountryCodeRelDate;
+	u16 wCountryCode0[0];
+} __attribute__ ((packed));
+
+
+struct usb_class_telephone_operational_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x08 */
+	u8 bmCapabilities;
+} __attribute__ ((packed));
+
+
+struct usb_class_usb_terminal_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x09 */
+	u8 bEntityId;
+	u8 bInterfaceNo;
+	u8 bOutInterfaceNo;
+	u8 bmOptions;
+	u8 bChild0[0];
+} __attribute__ ((packed));
+
+struct usb_class_network_channel_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x0a */
+	u8 bEntityId;
+	u8 iName;
+	u8 bChannelIndex;
+	u8 bPhysicalInterface;
+} __attribute__ ((packed));
+
+struct usb_class_protocol_unit_function_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x0b */
+	u8 bEntityId;
+	u8 bProtocol;
+	u8 bChild0[0];
+} __attribute__ ((packed));
+
+struct usb_class_extension_unit_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x0c */
+	u8 bEntityId;
+	u8 bExtensionCode;
+	u8 iName;
+	u8 bChild0[0];
+} __attribute__ ((packed));
+
+struct usb_class_multi_channel_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x0d */
+	u8 bmCapabilities;
+} __attribute__ ((packed));
+
+struct usb_class_capi_control_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x0e */
+	u8 bmCapabilities;
+} __attribute__ ((packed));
+
+struct usb_class_ethernet_networking_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x0f */
+	u8 iMACAddress;
+	u32 bmEthernetStatistics;
+	u16 wMaxSegmentSize;
+	u16 wNumberMCFilters;
+	u8 bNumberPowerFilters;
+} __attribute__ ((packed));
+
+struct usb_class_atm_networking_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x10 */
+	u8 iEndSystermIdentifier;
+	u8 bmDataCapabilities;
+	u8 bmATMDeviceStatistics;
+	u16 wType2MaxSegmentSize;
+	u16 wType3MaxSegmentSize;
+	u16 wMaxVC;
+} __attribute__ ((packed));
+
+
+struct usb_class_mdlm_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x12 */
+	u16 bcdVersion;
+	u8 bGUID[16];
+} __attribute__ ((packed));
+
+struct usb_class_mdlmd_descriptor {
+	u8 bFunctionLength;
+	u8 bDescriptorType;
+	u8 bDescriptorSubtype;	/* 0x13 */
+	u8 bGuidDescriptorType;
+	u8 bDetailData[0];
+
+} __attribute__ ((packed));
+
+/*
+ * HID class descriptor structures
+ *
+ * c.f. HID 6.2.1
+ */
+
+struct usb_class_hid_descriptor {
+    u8	      bLength;
+    u8	      bDescriptorType;
+    u16	      bcdCDC;
+    u8	      bCountryCode;
+    u8	      bNumDescriptors;	/* 0x01 */
+    u8	      bDescriptorType0;
+    u16	      wDescriptorLength0;
+    /* optional descriptors are not supported. */
+} __attribute__((packed));
+
+struct usb_class_report_descriptor {
+    u8	      bLength;	/* dummy */
+    u8	      bDescriptorType;
+    u16	      wLength;
+    u8		bData[0];
+} __attribute__((packed));
+
+/*
+ * descriptor union structures
+ */
+
+struct usb_descriptor {
+	union {
+		struct usb_generic_descriptor generic;
+		struct usb_endpoint_descriptor endpoint;
+		struct usb_interface_descriptor interface;
+		struct usb_configuration_descriptor configuration;
+		struct usb_device_descriptor device;
+		struct usb_string_descriptor string;
+	} descriptor;
+
+} __attribute__ ((packed));
+
+struct usb_class_descriptor {
+	union {
+		struct usb_class_function_descriptor function;
+		struct usb_class_function_descriptor_generic generic;
+		struct usb_class_header_function_descriptor header_function;
+		struct usb_class_call_management_descriptor call_management;
+		struct usb_class_abstract_control_descriptor abstract_control;
+		struct usb_class_direct_line_descriptor direct_line;
+		struct usb_class_telephone_ringer_descriptor telephone_ringer;
+		struct usb_class_telephone_operational_descriptor telephone_operational;
+		struct usb_class_telephone_call_descriptor telephone_call;
+		struct usb_class_union_function_descriptor union_function;
+		struct usb_class_country_selection_descriptor country_selection;
+		struct usb_class_usb_terminal_descriptor usb_terminal;
+		struct usb_class_network_channel_descriptor network_channel;
+		struct usb_class_extension_unit_descriptor extension_unit;
+		struct usb_class_multi_channel_descriptor multi_channel;
+		struct usb_class_capi_control_descriptor capi_control;
+		struct usb_class_ethernet_networking_descriptor ethernet_networking;
+		struct usb_class_atm_networking_descriptor atm_networking;
+		struct usb_class_mdlm_descriptor mobile_direct;
+		struct usb_class_mdlmd_descriptor mobile_direct_detail;
+		struct usb_class_hid_descriptor hid;
+	} descriptor;
+
+} __attribute__ ((packed));
+
+#endif
diff --git a/lib_arm/armlinux.c b/lib_arm/armlinux.c
index 8ba9f0c..8ace062 100644
--- a/lib_arm/armlinux.c
+++ b/lib_arm/armlinux.c
@@ -12,12 +12,12 @@
  *
  * 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
+ * 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
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307	 USA
  *
  */
 
@@ -256,6 +256,13 @@ void do_bootm_linux (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 	/* we assume that the kernel is in place */
 	printf ("\nStarting kernel ...\n\n");
 
+#ifdef CONFIG_USB_DEVICE
+	{
+		extern void udc_disconnect (void);
+		udc_disconnect ();
+	}
+#endif
+
 	cleanup_before_linux ();
 
 	theKernel (0, bd->bi_arch_number, bd->bi_boot_params);
diff --git a/net/bootp.c b/net/bootp.c
index e02372c..f5adce4 100644
--- a/net/bootp.c
+++ b/net/bootp.c
@@ -5,12 +5,12 @@
  *	(See License)
  *	Copyright 2000 Roland Borde
  *	Copyright 2000 Paolo Scaffardi
- *	Copyright 2000-2002 Wolfgang Denk, wd@denx.de
+ *	Copyright 2000-2004 Wolfgang Denk, wd@denx.de
  */
 
 #if 0
-#define	DEBUG		1	/* general debug */
-#define DEBUG_BOOTP_EXT	1	/* Debug received vendor fields	*/
+#define DEBUG		1	/* general debug */
+#define DEBUG_BOOTP_EXT 1	/* Debug received vendor fields */
 #endif
 
 #ifdef DEBUG_BOOTP_EXT
@@ -24,26 +24,27 @@
 #include <net.h>
 #include "bootp.h"
 #include "tftp.h"
+#include "nfs.h"
 #ifdef CONFIG_STATUS_LED
 #include <status_led.h>
 #endif
 
-#define	BOOTP_VENDOR_MAGIC	0x63825363 	/* RFC1048 Magic Cookie 	*/
+#define BOOTP_VENDOR_MAGIC	0x63825363	/* RFC1048 Magic Cookie		*/
 
 #if (CONFIG_COMMANDS & CFG_CMD_NET)
 
 #define TIMEOUT		5		/* Seconds before trying BOOTP again	*/
-#ifndef	CONFIG_NET_RETRY_COUNT
+#ifndef CONFIG_NET_RETRY_COUNT
 # define TIMEOUT_COUNT	5		/* # of timeouts before giving up  */
 #else
-# define TIMEOUT_COUNT  (CONFIG_NET_RETRY_COUNT)
+# define TIMEOUT_COUNT	(CONFIG_NET_RETRY_COUNT)
 #endif
 
 #define PORT_BOOTPS	67		/* BOOTP server UDP port		*/
 #define PORT_BOOTPC	68		/* BOOTP client UDP port		*/
 
 #ifndef CONFIG_DHCP_MIN_EXT_LEN		/* minimal length of extension list	*/
-#define	CONFIG_DHCP_MIN_EXT_LEN	64
+#define CONFIG_DHCP_MIN_EXT_LEN 64
 #endif
 
 ulong		BootpID;
@@ -63,13 +64,13 @@ static void DhcpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len);
 static char *dhcpmsg2str(int type)
 {
 	switch (type) {
-	case 1:  return "DHCPDISCOVER";	break;
-	case 2:  return "DHCPOFFER";	break;
-	case 3:  return "DHCPREQUEST";	break;
-	case 4:  return "DHCPDECLINE";	break;
-	case 5:  return "DHCPACK";	break;
-	case 6:  return "DHCPNACK";	break;
-	case 7:  return "DHCPRELEASE";	break;
+	case 1:	 return "DHCPDISCOVER"; break;
+	case 2:	 return "DHCPOFFER";	break;
+	case 3:	 return "DHCPREQUEST";	break;
+	case 4:	 return "DHCPDECLINE";	break;
+	case 5:	 return "DHCPACK";	break;
+	case 6:	 return "DHCPNACK";	break;
+	case 7:	 return "DHCPRELEASE";	break;
 	default: return "UNKNOWN/INVALID MSG TYPE"; break;
 	}
 }
@@ -144,159 +145,158 @@ static int truncate_sz (const char *name, int maxlen, int curlen)
 
 #if !(CONFIG_COMMANDS & CFG_CMD_DHCP)
 
-static void BootpVendorFieldProcess(u8 *ext)
+static void BootpVendorFieldProcess (u8 * ext)
 {
-    int size = *(ext+1) ;
+	int size = *(ext + 1);
 
-    debug_ext ("[BOOTP] Processing extension %d... (%d bytes)\n", *ext, *(ext+1));
+	debug_ext ("[BOOTP] Processing extension %d... (%d bytes)\n", *ext,
+		   *(ext + 1));
 
-    NetBootFileSize = 0;
+	NetBootFileSize = 0;
 
-    switch (*ext) {
-    /* Fixed length fields */
-	case 1:		/* Subnet mask					*/
+	switch (*ext) {
+		/* Fixed length fields */
+	case 1:			/* Subnet mask                                  */
 		if (NetOurSubnetMask == 0)
-			NetCopyIP(&NetOurSubnetMask, (IPaddr_t*)(ext+2));
+			NetCopyIP (&NetOurSubnetMask, (IPaddr_t *) (ext + 2));
 		break;
-	case 2:		/* Time offset - Not yet supported		*/
+	case 2:			/* Time offset - Not yet supported              */
 		break;
-    /* Variable length fields */
-	case 3:		/* Gateways list				*/
+		/* Variable length fields */
+	case 3:			/* Gateways list                                */
 		if (NetOurGatewayIP == 0) {
-			NetCopyIP(&NetOurGatewayIP, (IPaddr_t*)(ext+2));
+			NetCopyIP (&NetOurGatewayIP, (IPaddr_t *) (ext + 2));
 		}
 		break;
-	case 4:		/* Time server - Not yet supported		*/
+	case 4:			/* Time server - Not yet supported              */
 		break;
-	case 5:		/* IEN-116 name server - Not yet supported	*/
+	case 5:			/* IEN-116 name server - Not yet supported      */
 		break;
 	case 6:
 		if (NetOurDNSIP == 0) {
-			NetCopyIP(&NetOurDNSIP, (IPaddr_t*)(ext+2));
+			NetCopyIP (&NetOurDNSIP, (IPaddr_t *) (ext + 2));
 		}
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS2)
 		if ((NetOurDNS2IP == 0) && (size > 4)) {
-			NetCopyIP(&NetOurDNS2IP, (IPaddr_t*)(ext+2+4));
+			NetCopyIP (&NetOurDNS2IP, (IPaddr_t *) (ext + 2 + 4));
 		}
 #endif
 		break;
-	case 7:		/* Log server - Not yet supported		*/
+	case 7:			/* Log server - Not yet supported               */
 		break;
-	case 8:		/* Cookie/Quote server - Not yet supported	*/
+	case 8:			/* Cookie/Quote server - Not yet supported      */
 		break;
-	case 9:		/* LPR server - Not yet supported		*/
+	case 9:			/* LPR server - Not yet supported               */
 		break;
-	case 10:	/* Impress server - Not yet supported		*/
+	case 10:		/* Impress server - Not yet supported           */
 		break;
-	case 11:	/* RPL server - Not yet supported		*/
+	case 11:		/* RPL server - Not yet supported               */
 		break;
-	case 12:	/* Host name					*/
+	case 12:		/* Host name                                    */
 		if (NetOurHostName[0] == 0) {
-		    size = truncate_sz("Host Name", sizeof(NetOurHostName), size);
-		    memcpy(&NetOurHostName, ext+2, size);
-		    NetOurHostName[size] = 0 ;
+			size = truncate_sz ("Host Name", sizeof (NetOurHostName), size);
+			memcpy (&NetOurHostName, ext + 2, size);
+			NetOurHostName[size] = 0;
 		}
 		break;
-	case 13:	/* Boot file size				*/
+	case 13:		/* Boot file size                               */
 		if (size == 2)
-			NetBootFileSize = ntohs(*(ushort*)(ext+2));
+			NetBootFileSize = ntohs (*(ushort *) (ext + 2));
 		else if (size == 4)
-			NetBootFileSize = ntohl(*(ulong*)(ext+2));
+			NetBootFileSize = ntohl (*(ulong *) (ext + 2));
 		break;
-	case 14:	/* Merit dump file - Not yet supported		*/
+	case 14:		/* Merit dump file - Not yet supported          */
 		break;
-	case 15:	/* Domain name - Not yet supported		*/
+	case 15:		/* Domain name - Not yet supported              */
 		break;
-	case 16:	/* Swap server - Not yet supported		*/
+	case 16:		/* Swap server - Not yet supported              */
 		break;
-	case 17:	/* Root path					*/
+	case 17:		/* Root path                                    */
 		if (NetOurRootPath[0] == 0) {
-		    size = truncate_sz("Root Path", sizeof(NetOurRootPath), size);
-		    memcpy(&NetOurRootPath, ext+2, size);
-		    NetOurRootPath[size] = 0 ;
+			size = truncate_sz ("Root Path", sizeof (NetOurRootPath), size);
+			memcpy (&NetOurRootPath, ext + 2, size);
+			NetOurRootPath[size] = 0;
 		}
 		break;
-	case 18:	/* Extension path - Not yet supported		*/
+	case 18:		/* Extension path - Not yet supported           */
 		/*
 		 * This can be used to send the information of the
 		 * vendor area in another file that the client can
 		 * access via TFTP.
 		 */
 		break;
-    /* IP host layer fields */
-	case 40:	/* NIS Domain name				*/
+		/* IP host layer fields */
+	case 40:		/* NIS Domain name                              */
 		if (NetOurNISDomain[0] == 0) {
-		    size = truncate_sz ("NIS Domain Name",
-					sizeof(NetOurNISDomain),
-					size);
-		    memcpy(&NetOurNISDomain, ext+2, size);
-		    NetOurNISDomain[size] = 0 ;
+			size = truncate_sz ("NIS Domain Name", sizeof (NetOurNISDomain), size);
+			memcpy (&NetOurNISDomain, ext + 2, size);
+			NetOurNISDomain[size] = 0;
 		}
 		break;
-    /* Application layer fields */
-	case 43:	/* Vendor specific info - Not yet supported	*/
+		/* Application layer fields */
+	case 43:		/* Vendor specific info - Not yet supported     */
 		/*
 		 * Binary information to exchange specific
 		 * product information.
 		 */
 		break;
-    /* Reserved (custom) fields (128..254) */
-    }
+		/* Reserved (custom) fields (128..254) */
+	}
 }
 
-static void BootpVendorProcess(u8 *ext, int size)
+static void BootpVendorProcess (u8 * ext, int size)
 {
-    u8 *end = ext + size ;
+	u8 *end = ext + size;
 
-    debug_ext ("[BOOTP] Checking extension (%d bytes)...\n", size);
+	debug_ext ("[BOOTP] Checking extension (%d bytes)...\n", size);
 
-    while ((ext < end) && (*ext != 0xff)) {
-	if (*ext == 0) {
-	    ext ++ ;
-	} else {
-		u8 *opt = ext ;
-		ext += ext[1] + 2 ;
-		if (ext <= end)
-		    BootpVendorFieldProcess (opt) ;
+	while ((ext < end) && (*ext != 0xff)) {
+		if (*ext == 0) {
+			ext++;
+		} else {
+			u8 *opt = ext;
+
+			ext += ext[1] + 2;
+			if (ext <= end)
+				BootpVendorFieldProcess (opt);
+		}
 	}
-    }
 
 #ifdef DEBUG_BOOTP_EXT
-    printf("[BOOTP] Received fields: \n");
-    if (NetOurSubnetMask) {
-	puts ("NetOurSubnetMask	: ");
-	print_IPaddr (NetOurSubnetMask);
-	putc('\n');
-    }
-
-    if (NetOurGatewayIP) {
-	puts ("NetOurGatewayIP	: ");
-	print_IPaddr (NetOurGatewayIP);
-	putc('\n');
-    }
-
-    if (NetBootFileSize) {
-	printf("NetBootFileSize : %d\n", NetBootFileSize);
-    }
-
-    if (NetOurHostName[0]) {
-	printf("NetOurHostName  : %s\n", NetOurHostName);
-    }
-
-    if (NetOurRootPath[0]) {
-	printf("NetOurRootPath  : %s\n", NetOurRootPath);
-    }
-
-    if (NetOurNISDomain[0]) {
-	printf("NetOurNISDomain : %s\n", NetOurNISDomain);
-    }
-
-    if (NetBootFileSize) {
-	printf("NetBootFileSize: %d\n", NetBootFileSize);
-    }
-#endif	/* DEBUG_BOOTP_EXT */
-}
+	printf ("[BOOTP] Received fields: \n");
+	if (NetOurSubnetMask) {
+		puts ("NetOurSubnetMask : ");
+		print_IPaddr (NetOurSubnetMask);
+		putc ('\n');
+	}
+
+	if (NetOurGatewayIP) {
+		puts ("NetOurGatewayIP	: ");
+		print_IPaddr (NetOurGatewayIP);
+		putc ('\n');
+	}
+
+	if (NetBootFileSize) {
+		printf ("NetBootFileSize : %d\n", NetBootFileSize);
+	}
 
+	if (NetOurHostName[0]) {
+		printf ("NetOurHostName  : %s\n", NetOurHostName);
+	}
+
+	if (NetOurRootPath[0]) {
+		printf ("NetOurRootPath  : %s\n", NetOurRootPath);
+	}
+
+	if (NetOurNISDomain[0]) {
+		printf ("NetOurNISDomain : %s\n", NetOurNISDomain);
+	}
+
+	if (NetBootFileSize) {
+		printf ("NetBootFileSize: %d\n", NetBootFileSize);
+	}
+#endif /* DEBUG_BOOTP_EXT */
+}
 /*
  *	Handle a BOOTP received packet.
  */
@@ -311,11 +311,11 @@ BootpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len)
 
 	bp = (Bootp_t *)pkt;
 
-	if (BootpCheckPkt(pkt, dest, src, len))	/* Filter out pkts we don't want */
+	if (BootpCheckPkt(pkt, dest, src, len)) /* Filter out pkts we don't want */
 		return;
 
 	/*
-	 *	Got a good BOOTP reply.  Copy the data into our variables.
+	 *	Got a good BOOTP reply.	 Copy the data into our variables.
 	 */
 #ifdef CONFIG_STATUS_LED
 	status_led_set (STATUS_LED_BOOT, STATUS_LED_OFF);
@@ -371,179 +371,180 @@ BootpTimeout(void)
  *	Initialize BOOTP extension fields in the request.
  */
 #if (CONFIG_COMMANDS & CFG_CMD_DHCP)
-static int DhcpExtended(u8 *e, int message_type, IPaddr_t ServerID, IPaddr_t RequestedIP)
+static int DhcpExtended (u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t RequestedIP)
 {
-    u8 *start = e ;
-    u8 *cnt;
+	u8 *start = e;
+	u8 *cnt;
+
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_VENDOREX)
-    u8 *x;
+	u8 *x;
 #endif
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_SEND_HOSTNAME)
-    uchar *hostname;
+	uchar *hostname;
 #endif
 
-    *e++ =  99;		/* RFC1048 Magic Cookie */
-    *e++ = 130;
-    *e++ =  83;
-    *e++ =  99;
-
-    *e++ = 53;		/* DHCP Message Type */
-    *e++ = 1;
-    *e++ = message_type;
+	*e++ = 99;		/* RFC1048 Magic Cookie */
+	*e++ = 130;
+	*e++ = 83;
+	*e++ = 99;
 
-    *e++ = 57;		/* Maximum DHCP Message Size */
-    *e++ = 2;
-    *e++ = (576-312+OPT_SIZE) >> 8;
-    *e++ = (576-312+OPT_SIZE) & 0xff;
+	*e++ = 53;		/* DHCP Message Type */
+	*e++ = 1;
+	*e++ = message_type;
 
-    if ( ServerID ) {
-	    int tmp = ntohl(ServerID);
+	*e++ = 57;		/* Maximum DHCP Message Size */
+	*e++ = 2;
+	*e++ = (576 - 312 + OPT_SIZE) >> 8;
+	*e++ = (576 - 312 + OPT_SIZE) & 0xff;
 
-	    *e++ = 54;	/* ServerID */
-	    *e++ = 4;
-	    *e++ = tmp >> 24;
-	    *e++ = tmp >> 16;
-	    *e++ = tmp >> 8;
-	    *e++ = tmp & 0xff;
-    }
+	if (ServerID) {
+		int tmp = ntohl (ServerID);
 
-    if ( RequestedIP ) {
-	    int tmp = ntohl(RequestedIP);
+		*e++ = 54;	/* ServerID */
+		*e++ = 4;
+		*e++ = tmp >> 24;
+		*e++ = tmp >> 16;
+		*e++ = tmp >> 8;
+		*e++ = tmp & 0xff;
+	}
 
-	    *e++ = 50;	/* Requested IP */
-	    *e++ = 4;
-	    *e++ = tmp >> 24;
-	    *e++ = tmp >> 16;
-	    *e++ = tmp >> 8;
-	    *e++ = tmp & 0xff;
-    }
+	if (RequestedIP) {
+		int tmp = ntohl (RequestedIP);
 
+		*e++ = 50;	/* Requested IP */
+		*e++ = 4;
+		*e++ = tmp >> 24;
+		*e++ = tmp >> 16;
+		*e++ = tmp >> 8;
+		*e++ = tmp & 0xff;
+	}
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_SEND_HOSTNAME)
-    if ( (hostname = getenv("hostname")) ) {
-	    int hostnamelen = strlen(hostname);
-	    *e++ = 12;        /* Hostname */
-	    *e++ = hostnamelen;
-	    memcpy(e,hostname,hostnamelen);
-	    e += hostnamelen;
-    }
+	if ((hostname = getenv ("hostname"))) {
+		int hostnamelen = strlen (hostname);
+
+		*e++ = 12;	/* Hostname */
+		*e++ = hostnamelen;
+		memcpy (e, hostname, hostnamelen);
+		e += hostnamelen;
+	}
 #endif
 
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_VENDOREX)
-    if ((x = dhcp_vendorex_prep (e)))
-	return x - start ;
+	if ((x = dhcp_vendorex_prep (e)))
+		return x - start;
 #endif
 
-    *e++ = 55;		/* Parameter Request List */
-    cnt  = e++;		/* Pointer to count of requested items */
-    *cnt = 0;
+	*e++ = 55;		/* Parameter Request List */
+	 cnt = e++;		/* Pointer to count of requested items */
+	*cnt = 0;
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_SUBNETMASK)
-    *e++ = 1;		/* Subnet Mask */
-    *cnt += 1;
+	*e++  = 1;		/* Subnet Mask */
+	*cnt += 1;
 #endif
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_GATEWAY)
-    *e++ = 3;		/* Router Option */
-    *cnt += 1;
+	*e++  = 3;		/* Router Option */
+	*cnt += 1;
 #endif
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS)
-    *e++ = 6;		/* DNS Server(s) */
-    *cnt += 1;
+	*e++  = 6;		/* DNS Server(s) */
+	*cnt += 1;
 #endif
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_HOSTNAME)
-    *e++ = 12;		/* Hostname */
-    *cnt += 1;
+	*e++  = 12;		/* Hostname */
+	*cnt += 1;
 #endif
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_BOOTFILESIZE)
-    *e++ = 13;		/* Boot File Size */
-    *cnt += 1;
+	*e++  = 13;		/* Boot File Size */
+	*cnt += 1;
 #endif
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_BOOTPATH)
-    *e++ = 17;		/* Boot path */
-    *cnt += 1;
+	*e++  = 17;		/* Boot path */
+	*cnt += 1;
 #endif
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_NISDOMAIN)
-    *e++ = 40;		/* NIS Domain name request */
-    *cnt += 1;
+	*e++  = 40;		/* NIS Domain name request */
+	*cnt += 1;
 #endif
-    *e++ = 255;		/* End of the list */
+	*e++  = 255;		/* End of the list */
 
-    /* Pad to minimal length */
+	/* Pad to minimal length */
 #ifdef	CONFIG_DHCP_MIN_EXT_LEN
-    while ((e - start) <= CONFIG_DHCP_MIN_EXT_LEN)
-	*e++ = 0;
+	while ((e - start) <= CONFIG_DHCP_MIN_EXT_LEN)
+		*e++ = 0;
 #endif
 
-    return e - start ;
+	return e - start;
 }
 
 #else	/* CFG_CMD_DHCP */
 /*
  *	Warning: no field size check - change CONFIG_BOOTP_MASK at your own risk!
  */
-static int BootpExtended (u8 *e)
+static int BootpExtended (u8 * e)
 {
-    u8 *start = e ;
+	u8 *start = e;
 
-    *e++ =  99;		/* RFC1048 Magic Cookie */
-    *e++ = 130;
-    *e++ =  83;
-    *e++ =  99;
+	*e++ = 99;		/* RFC1048 Magic Cookie */
+	*e++ = 130;
+	*e++ = 83;
+	*e++ = 99;
 
 #if (CONFIG_COMMANDS & CFG_CMD_DHCP)
-    *e++ = 53;		/* DHCP Message Type */
-    *e++ = 1;
-    *e++ = DHCP_DISCOVER;
-
-    *e++ = 57;		/* Maximum DHCP Message Size */
-    *e++ = 2;
-    *e++ = (576-312+OPT_SIZE) >> 16;
-    *e++ = (576-312+OPT_SIZE) & 0xff;
-#endif	/* CFG_CMD_DHCP */
+	*e++ = 53;		/* DHCP Message Type */
+	*e++ = 1;
+	*e++ = DHCP_DISCOVER;
+
+	*e++ = 57;		/* Maximum DHCP Message Size */
+	*e++ = 2;
+	*e++ = (576 - 312 + OPT_SIZE) >> 16;
+	*e++ = (576 - 312 + OPT_SIZE) & 0xff;
+#endif /* CFG_CMD_DHCP */
 
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_SUBNETMASK)
-    *e++ =  1;		/* Subnet mask request */
-    *e++ =  4;
-     e  +=  4;
+	*e++ = 1;		/* Subnet mask request */
+	*e++ = 4;
+	e   += 4;
 #endif
 
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_GATEWAY)
-    *e++ =  3;		/* Default gateway request */
-    *e++ =  4;
-     e  +=  4;
+	*e++ = 3;		/* Default gateway request */
+	*e++ = 4;
+	e   += 4;
 #endif
 
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS)
-    *e++ =  6;		/* Domain Name Server */
-    *e++ =  4;
-     e  +=  4;
+	*e++ = 6;		/* Domain Name Server */
+	*e++ = 4;
+	e   += 4;
 #endif
 
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_HOSTNAME)
-    *e++ = 12;		/* Host name request */
-    *e++ = 32;
-     e  += 32;
+	*e++ = 12;		/* Host name request */
+	*e++ = 32;
+	e   += 32;
 #endif
 
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_BOOTFILESIZE)
-    *e++ = 13;		/* Boot file size */
-    *e++ =  2;
-     e  +=  2;
+	*e++ = 13;		/* Boot file size */
+	*e++ = 2;
+	e   += 2;
 #endif
 
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_BOOTPATH)
-    *e++ = 17;		/* Boot path */
-    *e++ = 32;
-     e  += 32;
+	*e++ = 17;		/* Boot path */
+	*e++ = 32;
+	e   += 32;
 #endif
 
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_NISDOMAIN)
-    *e++ = 40;		/* NIS Domain name request */
-    *e++ = 32;
-     e  += 32;
+	*e++ = 40;		/* NIS Domain name request */
+	*e++ = 32;
+	e   += 32;
 #endif
 
-    *e++ = 255;		/* End of the list */
+	*e++ = 255;		/* End of the list */
 
-    return e - start ;
+	return e - start;
 }
 #endif	/* CFG_CMD_DHCP */
 
@@ -678,7 +679,7 @@ BootpRequest (void)
 		| ((ulong)NetOurEther[4] << 8)
 		| (ulong)NetOurEther[5];
 	BootpID += get_timer(0);
-	BootpID  = htonl(BootpID);
+	BootpID	 = htonl(BootpID);
 	NetCopyLong(&bp->bp_id, &BootpID);
 
 	/*
@@ -700,64 +701,59 @@ BootpRequest (void)
 }
 
 #if (CONFIG_COMMANDS & CFG_CMD_DHCP)
-static void DhcpOptionsProcess(uchar *popt)
+static void DhcpOptionsProcess (uchar * popt)
 {
 	uchar *end = popt + BOOTP_HDR_SIZE;
 	int oplen, size;
 
-	while ( popt < end && *popt != 0xff ) {
+	while (popt < end && *popt != 0xff) {
 		oplen = *(popt + 1);
-		switch(*popt) {
-			case  1:
-				NetCopyIP(&NetOurSubnetMask, (popt+2));
-				break;
-			case  3:
-				NetCopyIP(&NetOurGatewayIP, (popt+2));
-				break;
-			case  6:
-				NetCopyIP(&NetOurDNSIP, (popt+2));
+		switch (*popt) {
+		case 1:
+			NetCopyIP (&NetOurSubnetMask, (popt + 2));
+			break;
+		case 3:
+			NetCopyIP (&NetOurGatewayIP, (popt + 2));
+			break;
+		case 6:
+			NetCopyIP (&NetOurDNSIP, (popt + 2));
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS2)
-				if ( *(popt+1) > 4 ) {
-					NetCopyIP(&NetOurDNS2IP, (popt+2+4));
-				}
+			if (*(popt + 1) > 4) {
+				NetCopyIP (&NetOurDNS2IP, (popt + 2 + 4));
+			}
 #endif
-				break;
-			case 12:
-				size = truncate_sz ("Host Name",
-						    sizeof(NetOurHostName),
-						    oplen);
-				memcpy(&NetOurHostName, popt+2, size);
-				NetOurHostName[size] = 0 ;
-				break;
-			case 15:		/* Ignore Domain Name Option */
-				break;
-			case 17:
-				size = truncate_sz ("Root Path",
-						    sizeof(NetOurRootPath),
-						    oplen);
-				memcpy(&NetOurRootPath, popt+2, size);
-				NetOurRootPath[size] = 0 ;
-				break;
-			case 51:
-				NetCopyLong (&dhcp_leasetime, (ulong *)(popt + 2));
-				break;
-			case 53:		/* Ignore Message Type Option */
-				break;
-			case 54:
-				NetCopyIP(&NetDHCPServerIP, (popt+2));
-				break;
-			case 58:		/* Ignore Renewal Time Option */
-				break;
-			case 59:		/* Ignore Rebinding Time Option */
-				break;
-			default:
+			break;
+		case 12:
+			size = truncate_sz ("Host Name", sizeof (NetOurHostName), oplen);
+			memcpy (&NetOurHostName, popt + 2, size);
+			NetOurHostName[size] = 0;
+			break;
+		case 15:	/* Ignore Domain Name Option */
+			break;
+		case 17:
+			size = truncate_sz ("Root Path", sizeof (NetOurRootPath), oplen);
+			memcpy (&NetOurRootPath, popt + 2, size);
+			NetOurRootPath[size] = 0;
+			break;
+		case 51:
+			NetCopyLong (&dhcp_leasetime, (ulong *) (popt + 2));
+			break;
+		case 53:	/* Ignore Message Type Option */
+			break;
+		case 54:
+			NetCopyIP (&NetDHCPServerIP, (popt + 2));
+			break;
+		case 58:	/* Ignore Renewal Time Option */
+			break;
+		case 59:	/* Ignore Rebinding Time Option */
+			break;
+		default:
 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_VENDOREX)
-			    if (dhcp_vendorex_proc(popt))
+			if (dhcp_vendorex_proc (popt))
 				break;
 #endif
-				printf("*** Unhandled DHCP Option in OFFER/ACK: %d\n",
-					*popt);
-				break;
+			printf ("*** Unhandled DHCP Option in OFFER/ACK: %d\n", *popt);
+			break;
 		}
 		popt += oplen + 2;	/* Process next option */
 	}
@@ -837,7 +833,7 @@ DhcpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len)
 	debug ("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n",
 		src, dest, len, dhcp_state);
 
-	if (BootpCheckPkt(pkt, dest, src, len))	/* Filter out pkts we don't want */
+	if (BootpCheckPkt(pkt, dest, src, len)) /* Filter out pkts we don't want */
 		return;
 
 	debug ("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state: %d\n",
@@ -864,7 +860,7 @@ DhcpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len)
 			if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC))
 				DhcpOptionsProcess(&bp->bp_vend[4]);
 
-			BootpCopyNetParams(bp);	/* Store net params from reply */
+			BootpCopyNetParams(bp); /* Store net params from reply */
 
 			NetSetTimeout(TIMEOUT * CFG_HZ, BootpTimeout);
 			DhcpSendRequestPkt(bp);
@@ -882,7 +878,7 @@ DhcpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len)
 
 			if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC))
 				DhcpOptionsProcess(&bp->bp_vend[4]);
-			BootpCopyNetParams(bp);	/* Store net params from reply */
+			BootpCopyNetParams(bp); /* Store net params from reply */
 			dhcp_state = BOUND;
 			printf("DHCP client bound to address ");
 			print_IPaddr(NetOurIP);