MLK-10774-33 imx:mx6 add udc and fastboot support

Add udc and fastboot support

We did not use the upstream way.
Currently use CI_UDC and USB_GAGDET of upstream can make fastboot work,
but lack of flash operation, so we still use our way.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Signed-off-by: Nitin Garg <nitin.garg@freescale.com>
Signed-off-by: Ye.Li <B37916@freescale.com>

3 files changed, 1832 insertions, 27 deletions

diff --git a/common/board_r.c b/common/board_r.c
index 0335f6b..ceccb80 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -58,6 +58,9 @@
 #ifdef CONFIG_AVR32
 #include <asm/arch/mmu.h>
 #endif
+#ifdef CONFIG_FASTBOOT
+#include <fastboot.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -673,6 +676,20 @@ static int initr_kbd(void)
 }
 #endif
 
+#ifdef CONFIG_FASTBOOT
+static int initr_fastboot_setup(void)
+{
+	fastboot_setup();
+	return 0;
+}
+
+static int initr_check_fastboot(void)
+{
+	check_fastboot();
+	return 0;
+}
+#endif
+
 static int run_main_loop(void)
 {
 #ifdef CONFIG_SANDBOX
@@ -848,6 +865,9 @@ init_fnc_t init_sequence_r[] = {
 #ifdef CONFIG_BOARD_LATE_INIT
 	board_late_init,
 #endif
+#ifdef CONFIG_FASTBOOT
+	initr_fastboot_setup,
+#endif
 #ifdef CONFIG_CMD_SCSI
 	INIT_FUNC_WATCHDOG_RESET
 	initr_scsi,
@@ -891,6 +911,9 @@ init_fnc_t init_sequence_r[] = {
 #ifdef CONFIG_PS2KBD
 	initr_kbd,
 #endif
+#ifdef CONFIG_FASTBOOT
+	initr_check_fastboot,
+#endif
 	run_main_loop,
 };
 
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index 6c5b600..c4e8d58 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -651,6 +651,7 @@ U_BOOT_CMD(
 );
 #endif	/* CONFIG_CMD_BOOTZ */
 
+#if 0
 #ifdef CONFIG_CMD_BOOTI
 /* See Documentation/arm64/booting.txt in the Linux kernel */
 struct Image_header {
@@ -799,3 +800,4 @@ U_BOOT_CMD(
 	"boot arm64 Linux Image image from memory", booti_help_text
 );
 #endif	/* CONFIG_CMD_BOOTI */
+#endif
diff --git a/common/cmd_fastboot.c b/common/cmd_fastboot.c
index 346ab80..c84877e 100644
--- a/common/cmd_fastboot.c
+++ b/common/cmd_fastboot.c
@@ -1,47 +1,1827 @@
 /*
- * Copyright 2008 - 2009 Windriver, <www.windriver.com>
- * Author: Tom Rix <Tom.Rix@windriver.com>
+ * Copyright 2008 - 2009 (C) Wind River Systems, Inc.
+ * Tom Rix <Tom.Rix@windriver.com>
  *
- * (C) Copyright 2014 Linaro, Ltd.
- * Rob Herring <robh@kernel.org>
+ * Copyright (C) 2010-2014 Freescale Semiconductor, Inc.
  *
- * SPDX-License-Identifier:	GPL-2.0+
+ * 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
+ *
+ * Part of the rx_handler were copied from the Android project.
+ * Specifically rx command parsing in the  usb_rx_data_complete
+ * function of the file bootable/bootloader/legacy/usbloader/usbloader.c
+ *
+ * The logical naming of flash comes from the Android project
+ * Thse structures and functions that look like fastboot_flash_*
+ * They come from bootable/bootloader/legacy/libboot/flash.c
+ *
+ * This is their Copyright:
+ *
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
  */
+#include <asm/byteorder.h>
 #include <common.h>
 #include <command.h>
-#include <g_dnl.h>
+#include <nand.h>
+#include <fastboot.h>
+#include <environment.h>
+#include <mmc.h>
+
+#if defined(CONFIG_OF_LIBFDT)
+#include <libfdt.h>
+#include <fdt_support.h>
+#endif
+#include <asm/bootm.h>
+
+#ifdef CONFIG_FASTBOOT
+
+int do_booti(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+extern int do_bootm_linux(int flag, int argc,
+	char *argv[], bootm_headers_t *images);
+
+/* Forward decl */
+static int tx_handler(void);
+static int rx_handler(const unsigned char *buffer, unsigned int buffer_size);
+static void reset_handler(void);
+
+static struct cmd_fastboot_interface interface = {
+	.rx_handler            = rx_handler,
+	.reset_handler         = reset_handler,
+	.product_name          = NULL,
+	.serial_no             = NULL,
+	.nand_block_size       = 0,
+	.transfer_buffer       = (unsigned char *)0xffffffff,
+	.transfer_buffer_size  = 0,
+};
+
+static unsigned int download_size;
+static unsigned int download_bytes;
+static unsigned int download_bytes_unpadded;
+static unsigned int download_error;
+static unsigned int continue_booting;
+static unsigned int upload_size;
+static unsigned int upload_bytes;
+static unsigned int upload_error;
+
+#define MMC_SATA_BLOCK_SIZE 512
+
+#ifdef CONFIG_FASTBOOT_STORAGE_NAND
+static void save_env(struct fastboot_ptentry *ptn,
+		     char *var, char *val)
+{
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+	char lock[128], unlock[128];
+#endif
+
+	setenv(var, val);
+
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+	sprintf(lock, "nand lock 0x%x 0x%x", ptn->start, ptn->length);
+	sprintf(unlock, "nand unlock 0x%x 0x%x", ptn->start, ptn->length);
+
+	/* This could be a problem is there is an outstanding lock */
+	run_command(unlock, 0);
+#endif
+	saveenv();
+
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+	run_command(lock, 0);
+#endif
+}
+
+void save_parts_values(struct fastboot_ptentry *ptn,
+			      unsigned int offset,
+			      unsigned int size)
+{
+	char var[64], val[32];
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+	char lock[128], unlock[128];
+	struct fastboot_ptentry *env_ptn;
+#endif
+
+	printf("saving it..\n");
+
+
+	sprintf(var, "%s_nand_offset", ptn->name);
+	sprintf(val, "0x%x", offset);
+
+	printf("setenv %s %s\n", var, val);
+
+	setenv(var, val);
+
+	sprintf(var, "%s_nand_size", ptn->name);
+	sprintf(val, "0x%x", size);
+
+	printf("setenv %s %s\n", var, val);
+
+	setenv(var, val);
+
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+	/* Warning :
+	   The environment is assumed to be in a partition named 'enviroment'.
+	   It is very possible that your board stores the enviroment
+	   someplace else. */
+	env_ptn = fastboot_flash_find_ptn("environment");
+
+	if (env_ptn) {
+		sprintf(lock, "nand lock 0x%x 0x%x",
+			env_ptn->start, env_ptn->length);
+		sprintf(unlock, "nand unlock 0x%x 0x%x",
+			env_ptn->start, env_ptn->length);
+
+		run_command(unlock, 0);
+	}
+#endif
+	saveenv();
+
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+	if (env_ptn)
+		run_command(lock, 0);
+#endif
+}
+
+int check_parts_values(struct fastboot_ptentry *ptn)
+{
+	char var[64];
+
+	sprintf(var, "%s_nand_offset", ptn->name);
+	if (!getenv(var))
+		return 1;
+
+	sprintf(var, "%s_nand_size", ptn->name);
+	if (!getenv(var))
+		return 1;
+
+	return 0;
+}
 
-static int do_fastboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+static int write_to_ptn(struct fastboot_ptentry *ptn)
 {
-	int ret;
+	int ret = 1;
+	char length[32];
+	char write_type[32];
+	int repeat, repeat_max;
+
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+	char lock[128];
+	char unlock[128];
+#endif
+	char write[128];
+	char erase[128];
+
+	printf("flashing '%s'\n", ptn->name);
 
-	g_dnl_clear_detach();
-	ret = g_dnl_register("usb_dnl_fastboot");
-	if (ret)
-		return ret;
+	/* Which flavor of write to use */
+	if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_I)
+		sprintf(write_type, "write.i");
+#ifdef CONFIG_CMD_NAND_TRIMFFS
+	else if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_TRIMFFS)
+		sprintf(write_type, "write.trimffs");
+#endif
+	else
+		sprintf(write_type, "write");
 
-	if (!g_dnl_board_usb_cable_connected()) {
-		puts("\rUSB cable not detected.\n" \
-		     "Command exit.\n");
-		return CMD_RET_FAILURE;
+	/* Some flashing requires writing the same data in multiple,
+	   consecutive flash partitions */
+	repeat_max = 1;
+	if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_REPEAT_MASK) {
+		if (ptn->flags &
+		    FASTBOOT_PTENTRY_FLAGS_WRITE_CONTIGUOUS_BLOCK) {
+			printf("Warning can not do both 'contiguous block' "
+				"and 'repeat' writes for for partition '%s'\n", ptn->name);
+			printf("Ignoring repeat flag\n");
+		} else {
+			repeat_max = ptn->flags &
+				FASTBOOT_PTENTRY_FLAGS_REPEAT_MASK;
+		}
 	}
 
-	while (1) {
-		if (g_dnl_detach())
+	/* Unlock the whole partition instead of trying to
+	   manage special cases */
+	sprintf(length, "0x%x", ptn->length * repeat_max);
+
+	for (repeat = 0; repeat < repeat_max; repeat++) {
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+		sprintf(lock, "nand lock 0x%x %s",
+			ptn->start + (repeat * ptn->length), length);
+		sprintf(unlock, "nand unlock 0x%x %s",
+			ptn->start + (repeat * ptn->length), length);
+#endif
+		sprintf(erase, "nand erase 0x%x %s",
+			ptn->start + (repeat * ptn->length), length);
+
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+		run_command(unlock, 0);
+#endif
+		run_command(erase, 0);
+
+		if ((ptn->flags &
+		     FASTBOOT_PTENTRY_FLAGS_WRITE_NEXT_GOOD_BLOCK) &&
+		    (ptn->flags &
+		     FASTBOOT_PTENTRY_FLAGS_WRITE_CONTIGUOUS_BLOCK)) {
+			/* Both can not be true */
+			printf("Warning can not do 'next good block' and \
+				'contiguous block' for partition '%s'\n",
+				ptn->name);
+			printf("Ignoring these flags\n");
+		} else if (ptn->flags &
+			   FASTBOOT_PTENTRY_FLAGS_WRITE_NEXT_GOOD_BLOCK) {
+			/* Keep writing until you get a good block
+			   transfer_buffer should already be aligned */
+			if (interface.nand_block_size) {
+				unsigned int blocks = download_bytes /
+					interface.nand_block_size;
+				unsigned int i = 0;
+				unsigned int offset = 0;
+
+				while (i < blocks) {
+					/* Check for overflow */
+					if (offset >= ptn->length)
+						break;
+
+					/* download's address only advance
+					   if last write was successful */
+
+					/* nand's address always advances */
+					sprintf(write, "nand %s 0x%p 0x%x 0x%x", write_type,
+						interface.transfer_buffer +
+						(i * interface.nand_block_size),
+						ptn->start + (repeat * ptn->length) + offset,
+						interface.nand_block_size);
+
+					ret = run_command(write, 0);
+					if (ret)
+						break;
+					else
+						i++;
+
+					/* Go to next nand block */
+					offset += interface.nand_block_size;
+				}
+			} else {
+				printf("Warning nand block size can not be 0 \
+					when using 'next good block' for \
+					partition '%s'\n", ptn->name);
+				printf("Ignoring write request\n");
+			}
+		} else if (ptn->flags &
+			 FASTBOOT_PTENTRY_FLAGS_WRITE_CONTIGUOUS_BLOCK) {
+			/* Keep writing until you get a good block
+			   transfer_buffer should already be aligned */
+			if (interface.nand_block_size) {
+				if (0 == nand_curr_device) {
+					nand_info_t *nand;
+					unsigned long off;
+					unsigned int ok_start;
+
+					nand = &nand_info[nand_curr_device];
+
+					printf("\nDevice %d bad blocks:\n",
+					       nand_curr_device);
+
+					/* Initialize the ok_start to the
+					   start of the partition
+					   Then try to find a block large
+					   enough for the download */
+					ok_start = ptn->start;
+
+					/* It is assumed that the start and
+					   length are multiples of block size */
+					for (off = ptn->start;
+					     off < ptn->start + ptn->length;
+					     off += nand->erasesize) {
+						if (nand_block_isbad(nand, off)) {
+							/* Reset the ok_start
+							   to the next block */
+							ok_start = off +
+								nand->erasesize;
+						}
+
+						/* Check if we have enough
+						   blocks */
+						if ((ok_start - off) >=
+						    download_bytes)
+							break;
+					}
+
+					/* Check if there is enough space */
+					if (ok_start + download_bytes <=
+					    ptn->start + ptn->length) {
+
+						sprintf(write, "nand %s 0x%p 0x%x 0x%x", write_type,
+							interface.transfer_buffer,
+							ok_start,
+							download_bytes);
+
+						ret = run_command(write, 0);
+
+						/* Save the results into an
+						   environment variable on the
+						   format
+						   ptn_name + 'offset'
+						   ptn_name + 'size'  */
+						if (ret) {
+							/* failed */
+							save_parts_values(ptn, ptn->start, 0);
+						} else {
+							/* success */
+							save_parts_values(ptn, ok_start, download_bytes);
+						}
+					} else {
+						printf("Error could not find enough contiguous space "
+							"in partition '%s'\n", ptn->name);
+						printf("Ignoring write request\n");
+					}
+				} else {
+					/* TBD : Generalize flash handling */
+					printf("Error only handling 1 NAND per board");
+					printf("Ignoring write request\n");
+				}
+			} else {
+				printf("Warning nand block size can not be 0 \
+					when using 'continuous block' for \
+					partition '%s'\n", ptn->name);
+				printf("Ignoring write request\n");
+			}
+		} else {
+			/* Normal case */
+			sprintf(write, "nand %s 0x%p 0x%x 0x%x", write_type,
+							interface.transfer_buffer,
+							ptn->start + (repeat * ptn->length),
+							download_bytes);
+#ifdef CONFIG_CMD_NAND_TRIMFFS
+			if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_TRIMFFS) {
+				sprintf(write, "nand %s 0x%p 0x%x 0x%x", write_type,
+							interface.transfer_buffer,
+							ptn->start + (repeat * ptn->length),
+							download_bytes_unpadded);
+			}
+#endif
+
+			ret = run_command(write, 0);
+
+			if (0 == repeat) {
+				if (ret) /* failed */
+					save_parts_values(ptn, ptn->start, 0);
+				else     /* success */
+					save_parts_values(ptn, ptn->start,
+							  download_bytes);
+			}
+		}
+
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+		run_command(lock, 0);
+#endif
+
+		if (ret)
 			break;
-		if (ctrlc())
+	}
+
+	return ret;
+}
+#else
+static void save_env(struct fastboot_ptentry *ptn,
+		     char *var, char *val)
+{
+	setenv(var, val);
+	saveenv();
+}
+#endif
+
+/* When save = 0, just parse.  The input is unchanged
+   When save = 1, parse and do the save.  The input is changed */
+static int parse_env(void *ptn, char *err_string, int save, int debug)
+{
+	int ret = 1;
+	unsigned int sets = 0;
+	unsigned int comment_start = 0;
+	char *var = NULL;
+	char *var_end = NULL;
+	char *val = NULL;
+	char *val_end = NULL;
+	unsigned int i;
+
+	char *buff = (char *)interface.transfer_buffer;
+	unsigned int size = download_bytes_unpadded;
+
+	/* The input does not have to be null terminated.
+	   This will cause a problem in the corner case
+	   where the last line does not have a new line.
+	   Put a null after the end of the input.
+
+	   WARNING : Input buffer is assumed to be bigger
+	   than the size of the input */
+	if (save)
+		buff[size] = 0;
+
+	for (i = 0; i < size; i++) {
+
+		if (NULL == var) {
+
+			/*
+			 * Check for comments, comment ok only on
+			 * mostly empty lines
+			 */
+			if (buff[i] == '#')
+				comment_start = 1;
+
+			if (comment_start) {
+				if  ((buff[i] == '\r') ||
+				     (buff[i] == '\n')) {
+					comment_start = 0;
+				}
+			} else {
+				if (!((buff[i] == ' ') ||
+				      (buff[i] == '\t') ||
+				      (buff[i] == '\r') ||
+				      (buff[i] == '\n'))) {
+					/*
+					 * Normal whitespace before the
+					 * variable
+					 */
+					var = &buff[i];
+				}
+			}
+
+		} else if (((NULL == var_end) || (NULL == val)) &&
+			   ((buff[i] == '\r') || (buff[i] == '\n'))) {
+
+			/* This is the case when a variable
+			   is unset. */
+
+			if (save) {
+				/* Set the var end to null so the
+				   normal string routines will work
+
+				   WARNING : This changes the input */
+				buff[i] = '\0';
+
+				save_env(ptn, var, val);
+
+				if (debug)
+					printf("Unsetting %s\n", var);
+			}
+
+			/* Clear the variable so state is parse is back
+			   to initial. */
+			var = NULL;
+			var_end = NULL;
+			sets++;
+		} else if (NULL == var_end) {
+			if ((buff[i] == ' ') ||
+			    (buff[i] == '\t'))
+				var_end = &buff[i];
+		} else if (NULL == val) {
+			if (!((buff[i] == ' ') ||
+			      (buff[i] == '\t')))
+				val = &buff[i];
+		} else if (NULL == val_end) {
+			if ((buff[i] == '\r') ||
+			    (buff[i] == '\n')) {
+				/* look for escaped cr or ln */
+				if ('\\' == buff[i - 1]) {
+					/* check for dos */
+					if ((buff[i] == '\r') &&
+					    (buff[i+1] == '\n'))
+						buff[i + 1] = ' ';
+					buff[i - 1] = buff[i] = ' ';
+				} else {
+					val_end = &buff[i];
+				}
+			}
+		} else {
+			sprintf(err_string, "Internal Error");
+
+			if (debug)
+				printf("Internal error at %s %d\n",
+				       __FILE__, __LINE__);
+			return 1;
+		}
+		/* Check if a var / val pair is ready */
+		if (NULL != val_end) {
+			if (save) {
+				/* Set the end's with nulls so
+				   normal string routines will
+				   work.
+
+				   WARNING : This changes the input */
+				*var_end = '\0';
+				*val_end = '\0';
+
+				save_env(ptn, var, val);
+
+				if (debug)
+					printf("Setting %s %s\n", var, val);
+			}
+
+			/* Clear the variable so state is parse is back
+			   to initial. */
+			var = NULL;
+			var_end = NULL;
+			val = NULL;
+			val_end = NULL;
+
+			sets++;
+		}
+	}
+
+	/* Corner case
+	   Check for the case that no newline at end of the input */
+	if ((NULL != var) &&
+	    (NULL == val_end)) {
+		if (save) {
+			/* case of val / val pair */
+			if (var_end)
+				*var_end = '\0';
+			/* else case handled by setting 0 past
+			   the end of buffer.
+			   Similar for val_end being null */
+			save_env(ptn, var, val);
+
+			if (debug) {
+				if (var_end)
+					printf("Trailing Setting %s %s\n", var, val);
+				else
+					printf("Trailing Unsetting %s\n", var);
+			}
+		}
+		sets++;
+	}
+	/* Did we set anything ? */
+	if (0 == sets)
+		sprintf(err_string, "No variables set");
+	else
+		ret = 0;
+
+	return ret;
+}
+
+static int saveenv_to_ptn(struct fastboot_ptentry *ptn, char *err_string)
+{
+	int ret = 1;
+	int save = 0;
+	int debug = 0;
+
+	/* err_string is only 32 bytes
+	   Initialize with a generic error message. */
+	sprintf(err_string, "%s", "Unknown Error");
+
+	/* Parse the input twice.
+	   Only save to the enviroment if the entire input if correct */
+	save = 0;
+	if (0 == parse_env(ptn, err_string, save, debug)) {
+		save = 1;
+		ret = parse_env(ptn, err_string, save, debug);
+	}
+	return ret;
+}
+
+
+#if defined(CONFIG_FASTBOOT_STORAGE_NAND)
+
+static void process_flash_nand(const char *cmdbuf, char *response)
+{
+	if (download_bytes) {
+		struct fastboot_ptentry *ptn;
+
+		ptn = fastboot_flash_find_ptn(cmdbuf + 6);
+		if (ptn == 0) {
+			sprintf(response, "FAILpartition does not exist");
+		} else if ((download_bytes > ptn->length) &&
+			   !(ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV)) {
+			sprintf(response, "FAILimage too large for partition");
+			/* TODO : Improve check for yaffs write */
+		} else {
+			/* Check if this is not really a flash write
+			   but rather a saveenv */
+			if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV) {
+				/* Since the response can only be 64 bytes,
+				   there is no point in having a large error message. */
+				char err_string[32];
+				if (saveenv_to_ptn(ptn, &err_string[0])) {
+					printf("savenv '%s' failed : %s\n",
+						ptn->name, err_string);
+					sprintf(response, "FAIL%s", err_string);
+				} else {
+					printf("partition '%s' saveenv-ed\n", ptn->name);
+					sprintf(response, "OKAY");
+				}
+			} else {
+				/* Normal case */
+				if (write_to_ptn(ptn)) {
+					printf("flashing '%s' failed\n", ptn->name);
+					sprintf(response, "FAILfailed to flash partition");
+				} else {
+					printf("partition '%s' flashed\n", ptn->name);
+					sprintf(response, "OKAY");
+				}
+			}
+		}
+	} else {
+		sprintf(response, "FAILno image downloaded");
+	}
+
+}
+#endif
+
+#if defined(CONFIG_FASTBOOT_STORAGE_SATA)
+static void process_flash_sata(const char *cmdbuf, char *response)
+{
+	if (download_bytes) {
+		struct fastboot_ptentry *ptn;
+
+		/* Next is the partition name */
+		ptn = fastboot_flash_find_ptn(cmdbuf + 6);
+		if (ptn == 0) {
+			printf("Partition:'%s' does not exist\n", ptn->name);
+			sprintf(response, "FAILpartition does not exist");
+		} else if ((download_bytes >
+			   ptn->length * MMC_SATA_BLOCK_SIZE) &&
+				!(ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV)) {
+			printf("Image too large for the partition\n");
+			sprintf(response, "FAILimage too large for partition");
+		} else if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV) {
+			/* Since the response can only be 64 bytes,
+			   there is no point in having a large error message. */
+			char err_string[32];
+			if (saveenv_to_ptn(ptn, &err_string[0])) {
+				printf("savenv '%s' failed : %s\n", ptn->name, err_string);
+				sprintf(response, "FAIL%s", err_string);
+			} else {
+				printf("partition '%s' saveenv-ed\n", ptn->name);
+				sprintf(response, "OKAY");
+			}
+		} else {
+			unsigned int temp;
+			char sata_write[128];
+
+			/* block count */
+			temp = (download_bytes +
+				MMC_SATA_BLOCK_SIZE - 1) /
+					MMC_SATA_BLOCK_SIZE;
+
+			sprintf(sata_write, "sata write 0x%x 0x%x 0x%x",
+				(unsigned int)interface.transfer_buffer,
+				ptn->start,
+				temp)
+
+			if (run_command(sata_write, 0)) {
+				printf("Writing '%s' FAILED!\n",
+					 ptn->name);
+				sprintf(response,
+				       "FAIL: Write partition");
+			} else {
+				printf("Writing '%s' DONE!\n",
+					ptn->name);
+				sprintf(response, "OKAY");
+			}
+		}
+	} else {
+		sprintf(response, "FAILno image downloaded");
+	}
+
+}
+#endif
+
+#if defined(CONFIG_FASTBOOT_STORAGE_MMC)
+static void process_flash_mmc(const char *cmdbuf, char *response)
+{
+	if (download_bytes) {
+		struct fastboot_ptentry *ptn;
+
+		/* Next is the partition name */
+		ptn = fastboot_flash_find_ptn(cmdbuf + 6);
+		if (ptn == 0) {
+			printf("Partition:'%s' does not exist\n", ptn->name);
+			sprintf(response, "FAILpartition does not exist");
+		} else if ((download_bytes >
+			   ptn->length * MMC_SATA_BLOCK_SIZE) &&
+				!(ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV)) {
+			printf("Image too large for the partition\n");
+			sprintf(response, "FAILimage too large for partition");
+		} else if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV) {
+			/* Since the response can only be 64 bytes,
+			   there is no point in having a large error message. */
+			char err_string[32];
+			if (saveenv_to_ptn(ptn, &err_string[0])) {
+				printf("savenv '%s' failed : %s\n", ptn->name, err_string);
+				sprintf(response, "FAIL%s", err_string);
+			} else {
+				printf("partition '%s' saveenv-ed\n", ptn->name);
+				sprintf(response, "OKAY");
+			}
+		} else {
+			unsigned int temp;
+
+			char mmc_dev[128];
+			char mmc_write[128];
+			int mmcret;
+
+			printf("writing to partition '%s'\n", ptn->name);
+
+			if (ptn->partition_id != FASTBOOT_MMC_NONE_PARTITION_ID)
+				sprintf(mmc_dev, "mmc dev %x %x",
+					fastboot_devinfo.dev_id, /*slot no*/
+					ptn->partition_id /*part no*/);
+			else
+				sprintf(mmc_dev, "mmc dev %x",
+					fastboot_devinfo.dev_id /*slot no*/);
+
+			/* block count */
+			temp = (download_bytes +
+				    MMC_SATA_BLOCK_SIZE - 1) /
+				    MMC_SATA_BLOCK_SIZE;
+
+			sprintf(mmc_write, "mmc write 0x%x 0x%x 0x%x",
+					(unsigned int)interface.transfer_buffer, /*source*/
+					ptn->start, /*dest*/
+					temp /*length*/);
+
+			printf("Initializing '%s'\n", ptn->name);
+
+			mmcret = run_command(mmc_dev, 0);
+			if (mmcret)
+				sprintf(response, "FAIL:Init of MMC card");
+			else
+				sprintf(response, "OKAY");
+
+			printf("Writing '%s'\n", ptn->name);
+			if (run_command(mmc_write, 0)) {
+				printf("Writing '%s' FAILED!\n", ptn->name);
+				sprintf(response, "FAIL: Write partition");
+			} else {
+				printf("Writing '%s' DONE!\n", ptn->name);
+				sprintf(response, "OKAY");
+			}
+		}
+	} else {
+		sprintf(response, "FAILno image downloaded");
+	}
+}
+
+#endif
+
+static void reset_handler ()
+{
+	/* If there was a download going on, bail */
+	download_size = 0;
+	download_bytes = 0;
+	download_bytes_unpadded = 0;
+	download_error = 0;
+	continue_booting = 0;
+	upload_size = 0;
+	upload_bytes = 0;
+	upload_error = 0;
+}
+
+static void rx_process_getvar(const char *cmdbuf, char *response)
+{
+	int temp_len = 0;
+
+	strcpy(response, "OKAY");
+
+	temp_len = strlen("getvar:");
+	if (!strcmp(cmdbuf + temp_len, "version")) {
+		strcpy(response + 4, FASTBOOT_VERSION);
+	} else if (!strcmp(cmdbuf + temp_len,
+			     "product")) {
+		if (interface.product_name)
+			strcpy(response + 4, interface.product_name);
+
+	} else if (!strcmp(cmdbuf + temp_len,
+			     "serialno")) {
+		if (interface.serial_no)
+			strcpy(response + 4, interface.serial_no);
+
+	} else if (!strcmp(cmdbuf + temp_len,
+			    "downloadsize")) {
+		if (interface.transfer_buffer_size)
+			sprintf(response + 4, "0x%x",
+				interface.transfer_buffer_size);
+	} else {
+		fastboot_getvar(cmdbuf + 7, response + 4);
+	}
+}
+
+static void rx_process_reboot(const char *cmdbuf, char *response)
+{
+	sprintf(response, "OKAY");
+	fastboot_tx_status(response, strlen(response));
+	udelay(1000000); /* 1 sec */
+
+	do_reset(NULL, 0, 0, NULL);
+}
+
+static int rx_process_erase(const char *cmdbuf, char *response)
+{
+#if defined(CONFIG_FASTBOOT_STORAGE_NAND)
+	struct fastboot_ptentry *ptn;
+
+	ptn = fastboot_flash_find_ptn(cmdbuf + 6);
+	if (ptn == 0) {
+		sprintf(response, "FAILpartition does not exist");
+	} else {
+		int status, repeat, repeat_max;
+
+		printf("erasing '%s'\n", ptn->name);
+
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+		char lock[128];
+		char unlock[128];
+#endif
+		char erase[128];
+
+		repeat_max = 1;
+		if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_REPEAT_MASK)
+			repeat_max = ptn->flags & FASTBOOT_PTENTRY_FLAGS_REPEAT_MASK;
+
+		for (repeat = 0; repeat < repeat_max;
+			repeat++) {
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+			sprintf(lock, "nand lock 0x%x 0x%x",
+				ptn->start + (repeat * ptn->length),
+				ptn->length);
+			sprintf(unlock, "nand unlock 0x%x 0x%x",
+				ptn->start + (repeat * ptn->length),
+				ptn->length);
+#endif
+			sprintf(erase, "nand erase 0x%x 0x%x",
+				ptn->start + (repeat * ptn->length),
+				ptn->length);
+
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+			run_command(unlock, 0);
+#endif
+			status = run_command(erase, 0);
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
+			run_command(lock, 0);
+#endif
+
+			if (status)
+				break;
+		}
+
+		if (status) {
+			sprintf(response,
+				   "FAILfailed to erase partition");
+		} else {
+			printf("partition '%s' erased\n", ptn->name);
+			sprintf(response, "OKAY");
+		}
+	}
+	return 0;
+#else
+	printf("Not support erase command for EMMC\n");
+	return -1;
+#endif
+
+}
+
+static void rx_process_flash(const char *cmdbuf, char *response)
+{
+	switch (fastboot_devinfo.type) {
+#if defined(CONFIG_FASTBOOT_STORAGE_SATA)
+	case DEV_SATA:
+		process_flash_sata(cmdbuf, response);
+		break;
+#endif
+#if defined(CONFIG_FASTBOOT_STORAGE_MMC)
+	case DEV_MMC:
+		process_flash_mmc(cmdbuf, response);
+		break;
+#endif
+#if defined(CONFIG_FASTBOOT_STORAGE_NAND)
+	case DEV_NAND:
+		process_flash_nand(cmdbuf, response);
+		break;
+#endif
+	default:
+		printf("Not support flash command for current device %d\n",
+			fastboot_devinfo.type);
+		sprintf(response,
+			   "FAILfailed to flash device");
+		break;
+	}
+}
+
+static void rx_process_boot(const char *cmdbuf, char *response)
+{
+	if ((download_bytes) &&
+		(CFG_FASTBOOT_MKBOOTIMAGE_PAGE_SIZE <
+			download_bytes)) {
+		char start[32];
+		char *booti_args[4] = {"booti",  NULL, "boot", NULL};
+
+		/*
+		 * Use this later to determine if a command line was passed
+		 * for the kernel.
+		 */
+		/* struct fastboot_boot_img_hdr *fb_hdr = */
+		/*	(struct fastboot_boot_img_hdr *) interface.transfer_buffer; */
+
+		/* Skip the mkbootimage header */
+		/* image_header_t *hdr = */
+		/*	(image_header_t *) */
+		/*	&interface.transfer_buffer[CFG_FASTBOOT_MKBOOTIMAGE_PAGE_SIZE]; */
+
+		booti_args[1] = start;
+		sprintf(start, "0x%x", (unsigned int)interface.transfer_buffer);
+
+		/* Execution should jump to kernel so send the response
+		   now and wait a bit.	*/
+		sprintf(response, "OKAY");
+		fastboot_tx_status(response, strlen(response));
+
+		printf("Booting kernel...\n");
+
+
+		/* Reserve for further use, this can
+		 * be more convient for developer. */
+		/* if (strlen ((char *) &fb_hdr->cmdline[0])) */
+		/*	set_env("bootargs", (char *) &fb_hdr->cmdline[0]); */
+
+		/* boot the boot.img */
+		do_booti(NULL, 0, 3, booti_args);
+
+
+	}
+	sprintf(response, "FAILinvalid boot image");
+}
+
+static void rx_process_upload(const char *cmdbuf, char *response)
+{
+#if defined(CONFIG_FASTBOOT_STORAGE_NAND)
+	unsigned int adv, delim_index, len;
+	struct fastboot_ptentry *ptn;
+	unsigned int is_raw = 0;
+
+	/* Is this a raw read ? */
+	if (memcmp(cmdbuf, "uploadraw:", 10) == 0) {
+		is_raw = 1;
+		adv = 10;
+	} else {
+		adv = 7;
+	}
+
+	/* Scan to the next ':' to find when the size starts */
+	len = strlen(cmdbuf);
+	for (delim_index = adv;
+		 delim_index < len; delim_index++) {
+		if (cmdbuf[delim_index] == ':') {
+			/* WARNING, cmdbuf is being modified. */
+			*((char *) &cmdbuf[delim_index]) = 0;
 			break;
-		usb_gadget_handle_interrupts();
+		}
+	}
+
+	ptn = fastboot_flash_find_ptn(cmdbuf + adv);
+	if (ptn == 0) {
+		sprintf(response,
+			"FAILpartition does not exist");
+	} else {
+		/* This is how much the user is expecting */
+		unsigned int user_size;
+		/*
+		 * This is the maximum size needed for
+		 * this partition
+		 */
+		unsigned int size;
+		/* This is the length of the data */
+		unsigned int length;
+		/*
+		 * Used to check previous write of
+		 * the parition
+		 */
+		char env_ptn_length_var[128];
+		char *env_ptn_length_val;
+
+		user_size = 0;
+		if (delim_index < len)
+			user_size =
+				simple_strtoul(cmdbuf + delim_index + 1,
+					NULL, 16);
+
+		/* Make sure output is padded to block size */
+		length = ptn->length;
+		sprintf(env_ptn_length_var,
+			"%s_nand_size", ptn->name);
+		env_ptn_length_val = getenv(env_ptn_length_var);
+		if (env_ptn_length_val) {
+			length =
+				simple_strtoul(env_ptn_length_val,
+					NULL, 16);
+			/* Catch possible problems */
+			if (!length)
+				length = ptn->length;
+		}
+
+		size = length / interface.nand_block_size;
+		size *= interface.nand_block_size;
+		if (length % interface.nand_block_size)
+			size += interface.nand_block_size;
+
+		if (is_raw)
+			size += (size /
+				 interface.nand_block_size) *
+				interface.nand_oob_size;
+
+		if (size > interface.transfer_buffer_size) {
+
+			sprintf(response, "FAILdata too large");
+
+		} else if (user_size == 0) {
+
+			/* Send the data response */
+			sprintf(response, "DATA%08x", size);
+
+		} else if (user_size != size) {
+			/* This is the wrong size */
+			sprintf(response, "FAIL");
+		} else {
+			/*
+			 * This is where the transfer
+			 * buffer is populated
+			 */
+			unsigned char *buf =
+			  interface.transfer_buffer;
+			char read[128];
+
+			/*
+			 * Setting upload_size causes
+			 * transfer to happen in main loop
+			 */
+			upload_size = size;
+			upload_bytes = 0;
+			upload_error = 0;
+
+			/*
+			 * Poison the transfer buffer, 0xff
+			 * is erase value of nand
+			 */
+			memset(buf, 0xff, upload_size);
+
+			/* Which flavor of read to use */
+			if (is_raw)
+				sprintf(read, "nand read.raw 0x%x 0x%x 0x%x",
+					(unsigned int)(interface.transfer_buffer),
+					ptn->start,
+					upload_size);
+			else
+				sprintf(read, "nand read.i 0x%x 0x%x 0x%x",
+					(unsigned int)(interface.transfer_buffer),
+					ptn->start,
+					upload_size);
+
+			run_command(read, 0);
+
+			/* Send the data response */
+			sprintf(response, "DATA%08x", size);
+		}
+	}
+#endif
+
+}
+
+static int tx_handler(void)
+{
+	if (upload_size) {
+
+		int bytes_written;
+		bytes_written = fastboot_tx(interface.transfer_buffer +
+					    upload_bytes, upload_size -
+					    upload_bytes);
+		if (bytes_written > 0) {
+
+			upload_bytes += bytes_written;
+			/* Check if this is the last */
+			if (upload_bytes == upload_size) {
+
+				/* Reset upload */
+				upload_size = 0;
+				upload_bytes = 0;
+				upload_error = 0;
+			}
+		}
+	}
+	return upload_error;
+}
+
+static int rx_handler (const unsigned char *buffer, unsigned int buffer_size)
+{
+	int ret = 1;
+
+	/*response buffer, Use 65 instead of 64
+	   null gets dropped. strcpy's need the extra byte */
+	char response[FASTBOOT_RESPONSE_SIZE];
+
+	if (download_size) {
+		/* Something to download */
+
+		if (buffer_size) {
+			/* Handle possible overflow */
+			unsigned int transfer_size =
+				download_size - download_bytes;
+
+			if (buffer_size < transfer_size)
+				transfer_size = buffer_size;
+
+			/* Save the data to the transfer buffer */
+			memcpy(interface.transfer_buffer + download_bytes,
+				buffer, transfer_size);
+
+			download_bytes += transfer_size;
+
+			/* Check if transfer is done */
+			if (download_bytes >= download_size) {
+				/* Reset global transfer variable,
+				   Keep download_bytes because it will be
+				   used in the next possible flashing command */
+				download_size = 0;
+
+				if (download_error) {
+					/* There was an earlier error */
+					sprintf(response, "ERROR");
+				} else {
+					/* Everything has transferred,
+					   send the OK response */
+					sprintf(response, "OKAY");
+				}
+				fastboot_tx_status(response, strlen(response));
+
+				printf("\ndownloading of %d bytes finished\n",
+					download_bytes);
+
+#if defined(CONFIG_FASTBOOT_STORAGE_NAND)
+				/* Pad to block length
+				   In most cases, padding the download to be
+				   block aligned is correct. The exception is
+				   when the following flash writes to the oob
+				   area.  This happens when the image is a
+				   YAFFS image.  Since we do not know what
+				   the download is until it is flashed,
+				   go ahead and pad it, but save the true
+				   size in case if should have
+				   been unpadded */
+				download_bytes_unpadded = download_bytes;
+				if (interface.nand_block_size) {
+					if (download_bytes %
+					    interface.nand_block_size) {
+						unsigned int pad =
+							interface.nand_block_size -
+							(download_bytes % interface.nand_block_size);
+						unsigned int i;
+
+						for (i = 0; i < pad; i++) {
+							if (download_bytes >=
+								interface.transfer_buffer_size)
+								break;
+
+							interface.transfer_buffer[download_bytes] = 0;
+							download_bytes++;
+						}
+					}
+				}
+#endif
+			}
+
+			/* Provide some feedback */
+			if (download_bytes &&
+			    0 == (download_bytes %
+				  (16 * interface.nand_block_size))) {
+				/* Some feeback that the
+				   download is happening */
+				if (download_error)
+					printf("X");
+				else
+					printf(".");
+				if (0 == (download_bytes %
+					  (80 * 16 *
+					   interface.nand_block_size)))
+					printf("\n");
+
+			}
+		} else {
+			/* Ignore empty buffers */
+			printf("Warning empty download buffer\n");
+			printf("Ignoring\n");
+		}
+		ret = 0;
+	} else {
+		/* A command */
+
+		/* Cast to make compiler happy with string functions */
+		const char *cmdbuf = (char *) buffer;
+		printf("cmdbuf: %s\n", cmdbuf);
+
+		/* Generic failed response */
+		sprintf(response, "FAIL");
+
+		/* reboot
+		   Reboot the board. */
+		if (memcmp(cmdbuf, "reboot", 6) == 0) {
+			rx_process_reboot(cmdbuf, response);
+			/* This code is unreachable,
+			   leave it to make the compiler happy */
+			return 0;
+		}
+
+		/* getvar
+		   Get common fastboot variables
+		   Board has a chance to handle other variables */
+		if (memcmp(cmdbuf, "getvar:", 7) == 0) {
+			rx_process_getvar(cmdbuf, response);
+			ret = 0;
+		}
+
+		/* erase
+		   Erase a register flash partition
+		   Board has to set up flash partitions */
+		if (memcmp(cmdbuf, "erase:", 6) == 0)
+			ret = rx_process_erase(cmdbuf, response);
+
+		/* download
+		   download something ..
+		   What happens to it depends on the next command after data */
+
+		if (memcmp(cmdbuf, "download:", 9) == 0) {
+
+			/* save the size */
+			download_size = simple_strtoul(cmdbuf + 9, NULL, 16);
+			/* Reset the bytes count, now it is safe */
+			download_bytes = 0;
+			/* Reset error */
+			download_error = 0;
+
+			printf("Starting download of %d bytes\n",
+				download_size);
+
+			if (0 == download_size) {
+				/* bad user input */
+				sprintf(response, "FAILdata invalid size");
+			} else if (download_size >
+				    interface.transfer_buffer_size) {
+				/* set download_size to 0 because this is an error */
+				download_size = 0;
+				sprintf(response, "FAILdata too large");
+			} else {
+				/* The default case, the transfer fits
+				   completely in the interface buffer */
+				sprintf(response, "DATA%08x", download_size);
+			}
+			ret = 0;
+		}
+
+		/* boot
+		   boot what was downloaded
+
+		   WARNING WARNING WARNING
+
+		   This is not what you expect.
+		   The fastboot client does its own packaging of the
+		   kernel.  The layout is defined in the android header
+		   file bootimage.h.  This layeout is copiedlooks like this,
+
+		   **
+		   ** +-----------------+
+		   ** | boot header     | 1 page
+		   ** +-----------------+
+		   ** | kernel          | n pages
+		   ** +-----------------+
+		   ** | ramdisk         | m pages
+		   ** +-----------------+
+		   ** | second stage    | o pages
+		   ** +-----------------+
+		   **
+
+		   We only care about the kernel.
+		   So we have to jump past a page.
+
+		   What is a page size ?
+		   The fastboot client uses 2048
+
+		   The is the default value of
+
+		   CFG_FASTBOOT_MKBOOTIMAGE_PAGE_SIZE
+
+		*/
+
+		if (memcmp(cmdbuf, "boot", 4) == 0) {
+			rx_process_boot(cmdbuf, response);
+			ret = 0;
+		}
+
+		/* flash
+		   Flash what was downloaded */
+		if (memcmp(cmdbuf, "flash:", 6) == 0) {
+			rx_process_flash(cmdbuf, response);
+			ret = 0;
+		}
+
+		/* continue
+		   Stop doing fastboot */
+		if (memcmp(cmdbuf, "continue", 8) == 0) {
+			sprintf(response, "OKAY");
+			continue_booting = 1;
+			ret = 0;
+		}
+
+		/* upload
+		   Upload just the data in a partition */
+		if ((memcmp(cmdbuf, "upload:", 7) == 0) ||
+		    (memcmp(cmdbuf, "uploadraw:", 10) == 0)) {
+			rx_process_upload(cmdbuf, response);
+			ret = 0;
+		}
+
+		fastboot_tx_status(response, strlen(response));
+
+	} /* End of command */
+
+	return ret;
+}
+
+int do_fastboot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int ret = 1;
+	int check_timeout = 0;
+	uint64_t timeout_endtime = 0;
+	uint64_t timeout_ticks = 1000;
+	int continue_from_disconnect = 0;
+
+	do {
+		continue_from_disconnect = 0;
+
+		/* Initialize the board specific support */
+		if (0 == fastboot_init(&interface)) {
+
+			int poll_status;
+
+			/* If we got this far, we are a success */
+			ret = 0;
+			printf("fastboot initialized\n");
+
+			timeout_endtime = get_timer(0);
+			timeout_endtime += timeout_ticks;
+
+			while (1) {
+				uint64_t current_time = 0;
+				poll_status = fastboot_poll();
+
+				if (1 == check_timeout)
+					current_time = get_timer(0);
+
+				if (FASTBOOT_ERROR == poll_status) {
+					/* Error */
+					break;
+				} else if (FASTBOOT_DISCONNECT == poll_status) {
+					/* beak, cleanup and re-init */
+					printf("Fastboot disconnect detected\n");
+					continue_from_disconnect = 1;
+					break;
+				} else if ((1 == check_timeout) &&
+					   (FASTBOOT_INACTIVE == poll_status)) {
+
+					/* No activity */
+					if (current_time >= timeout_endtime) {
+						printf("Fastboot inactivity detected\n");
+						break;
+					}
+				} else {
+					/* Something happened */
+					if (1 == check_timeout) {
+						/* Update the timeout endtime */
+						timeout_endtime = current_time;
+						timeout_endtime += timeout_ticks;
+					}
+				}
+
+				/* Check if the user wanted to terminate with ^C */
+				if ((FASTBOOT_INACTIVE == poll_status) &&
+				    (ctrlc())) {
+					printf("Fastboot ended by user\n");
+					break;
+				}
+
+				/*
+				 * Check if the fastboot client wanted to
+				 * continue booting
+				 */
+				if (continue_booting) {
+					printf("Fastboot ended by client\n");
+					break;
+				}
+
+				/* Check if there is something to upload */
+				tx_handler();
+			}
+		}
+
+		/* Reset the board specific support */
+		fastboot_shutdown();
+
+		/* restart the loop if a disconnect was detected */
+	} while (continue_from_disconnect);
+
+	return ret;
+}
+
+U_BOOT_CMD(
+	fastboot,	2,	1,	do_fastboot,
+	"fastboot- use USB Fastboot protocol\n",
+	"[inactive timeout]\n"
+	"    - Run as a fastboot usb device.\n"
+	"    - The optional inactive timeout is the decimal seconds before\n"
+	"    - the normal console resumes\n"
+);
+
+
+#ifdef CONFIG_CMD_BOOTI
+  /* Section for Android bootimage format support
+   * Refer:
+   * http://android.git.kernel.org/?p=platform/system/core.git;a=blob;
+   * f=mkbootimg/bootimg.h
+   */
+
+void
+bootimg_print_image_hdr(struct fastboot_boot_img_hdr *hdr)
+{
+#ifdef DEBUG
+	int i;
+	printf("   Image magic:   %s\n", hdr->magic);
+
+	printf("   kernel_size:   0x%x\n", hdr->kernel_size);
+	printf("   kernel_addr:   0x%x\n", hdr->kernel_addr);
+
+	printf("   rdisk_size:   0x%x\n", hdr->ramdisk_size);
+	printf("   rdisk_addr:   0x%x\n", hdr->ramdisk_addr);
+
+	printf("   second_size:   0x%x\n", hdr->second_size);
+	printf("   second_addr:   0x%x\n", hdr->second_addr);
+
+	printf("   tags_addr:   0x%x\n", hdr->tags_addr);
+	printf("   page_size:   0x%x\n", hdr->page_size);
+
+	printf("   name:      %s\n", hdr->name);
+	printf("   cmdline:   %s%x\n", hdr->cmdline);
+
+	for (i = 0; i < 8; i++)
+		printf("   id[%d]:   0x%x\n", i, hdr->id[i]);
+#endif
+}
+
+static struct fastboot_boot_img_hdr boothdr __aligned(ARCH_DMA_MINALIGN);
+
+#define ALIGN_SECTOR(n, pagesz) ((n + (pagesz - 1)) & (~(pagesz - 1)))
+
+#ifdef CONFIG_LMB
+static void boot_start_lmb(bootm_headers_t *images)
+{
+	ulong		mem_start;
+	phys_size_t	mem_size;
+
+	lmb_init(&images->lmb);
+
+	mem_start = getenv_bootm_low();
+	mem_size = getenv_bootm_size();
+
+	lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
+
+	arch_lmb_reserve(&images->lmb);
+	board_lmb_reserve(&images->lmb);
+}
+#else
+#define lmb_reserve(lmb, base, size)
+static inline void boot_start_lmb(bootm_headers_t *images) { }
+#endif
+
+/* Allow for arch specific config before we boot */
+static void __arch_preboot_os(void)
+{
+	/* please define platform specific arch_preboot_os() */
+}
+void arch_preboot_os(void) __attribute__((weak, alias("__arch_preboot_os")));
+
+/* booti <addr> [ mmc0 | mmc1 [ <partition> ] ] */
+int do_booti(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	unsigned addr = 0;
+	char *ptn = "boot";
+	int mmcc = -1;
+	struct fastboot_boot_img_hdr *hdr = &boothdr;
+#ifdef CONFIG_SECURE_BOOT
+    u_int32_t load_addr;
+    uint32_t image_size;
+#endif
+	int i = 0;
+	bootm_headers_t images;
+
+	for (i = 0; i < argc; i++)
+		printf("%s ", argv[i]);
+	printf("\n");
+
+	if (argc < 2)
+		return -1;
+
+	if (!strncmp(argv[1], "mmc", 3))
+		mmcc = simple_strtoul(argv[1]+3, NULL, 10);
+	else
+		addr = simple_strtoul(argv[1], NULL, 16);
+
+	if (argc > 2)
+		ptn = argv[2];
+
+	if (mmcc != -1) {
+#ifdef CONFIG_MMC
+		struct fastboot_ptentry *pte;
+		struct mmc *mmc;
+		disk_partition_t info;
+		block_dev_desc_t *dev_desc = NULL;
+		unsigned sector;
+
+		memset((void *)&info, 0 , sizeof(disk_partition_t));
+		/* i.MX use MBR as partition table, so this will have
+		   to find the start block and length for the
+		   partition name and register the fastboot pte we
+		   define the partition number of each partition in
+		   config file
+		 */
+		mmc = find_mmc_device(mmcc);
+		if (!mmc) {
+			printf("booti: cannot find '%d' mmc device\n", mmcc);
+			goto fail;
+		}
+		dev_desc = get_dev("mmc", mmcc);
+		if (NULL == dev_desc) {
+			printf("** Block device MMC %d not supported\n", mmcc);
+			goto fail;
+		}
+
+		/* below was i.MX mmc operation code */
+		if (mmc_init(mmc)) {
+			printf("mmc%d init failed\n", mmcc);
+			goto fail;
+		}
+
+		pte = fastboot_flash_find_ptn(ptn);
+		if (!pte) {
+			printf("booti: cannot find '%s' partition\n", ptn);
+			goto fail;
+		}
+
+		if (mmc->block_dev.block_read(mmcc, pte->start,
+					      1, (void *)hdr) < 0) {
+			printf("booti: mmc failed to read bootimg header\n");
+			goto fail;
+		}
+
+		if (memcmp(hdr->magic, FASTBOOT_BOOT_MAGIC, 8)) {
+			printf("booti: bad boot image magic\n");
+			goto fail;
+		}
+
+		sector = pte->start + (hdr->page_size / 512);
+
+		if (mmc->block_dev.block_read(mmcc, sector,
+						(hdr->kernel_size / 512) + 1,
+						(void *)hdr->kernel_addr) < 0) {
+			printf("booti: mmc failed to read kernel\n");
+			goto fail;
+		}
+		/* flush cache after read */
+		flush_cache((ulong)hdr->kernel_addr, hdr->kernel_size); /* FIXME */
+		sector += ALIGN_SECTOR(hdr->kernel_size, hdr->page_size) / 512;
+		if (mmc->block_dev.block_read(mmcc, sector,
+						(hdr->ramdisk_size / 512) + 1,
+						(void *)hdr->ramdisk_addr) < 0) {
+			printf("booti: mmc failed to read ramdisk\n");
+			goto fail;
+		}
+		/* flush cache after read */
+		flush_cache((ulong)hdr->ramdisk_addr, hdr->ramdisk_size); /* FIXME */
+
+#ifdef CONFIG_OF_LIBFDT
+		/* load the dtb file */
+		if (hdr->second_size && hdr->second_addr) {
+			sector += ALIGN_SECTOR(hdr->ramdisk_size, hdr->page_size) / 512;
+			if (mmc->block_dev.block_read(mmcc, sector,
+						(hdr->second_size / 512) + 1,
+						(void *)hdr->second_addr) < 0) {
+				printf("booti: mmc failed to dtb\n");
+				goto fail;
+			}
+			/* flush cache after read */
+			flush_cache((ulong)hdr->second_addr, hdr->second_size); /* FIXME */
+		}
+#endif /*CONFIG_OF_LIBFDT*/
+
+#else /*! CONFIG_MMC*/
+		return -1;
+#endif /*! CONFIG_MMC*/
+	} else {
+		unsigned kaddr, raddr, end;
+#ifdef CONFIG_OF_LIBFDT
+		unsigned fdtaddr = 0;
+#endif
+
+		/* set this aside somewhere safe */
+		memcpy(hdr, (void *) addr, sizeof(*hdr));
+
+		if (memcmp(hdr->magic, FASTBOOT_BOOT_MAGIC, 8)) {
+			printf("booti: bad boot image magic\n");
+			return 1;
+		}
+
+		bootimg_print_image_hdr(hdr);
+
+		kaddr = addr + hdr->page_size;
+		raddr = kaddr + ALIGN_SECTOR(hdr->kernel_size, hdr->page_size);
+		end = raddr + hdr->ramdisk_size;
+#ifdef CONFIG_OF_LIBFDT
+		if (hdr->second_size) {
+			fdtaddr = raddr + ALIGN_SECTOR(hdr->ramdisk_size, hdr->page_size);
+			end = fdtaddr + hdr->second_size;
+		}
+#endif /*CONFIG_OF_LIBFDT*/
+		if (kaddr != hdr->kernel_addr) {
+			/*check overlap*/
+			if (((hdr->kernel_addr >= addr) &&
+					(hdr->kernel_addr <= end)) ||
+				((addr >= hdr->kernel_addr) &&
+					(addr <= hdr->kernel_addr + hdr->kernel_size))) {
+				printf("Fail: booti address overlap with kernel address\n");
+				return 1;
+			}
+			memmove((void *) hdr->kernel_addr,
+				(void *)kaddr, hdr->kernel_size);
+		}
+		if (raddr != hdr->ramdisk_addr) {
+			/*check overlap*/
+			if (((hdr->ramdisk_addr >= addr) &&
+					(hdr->ramdisk_addr <= end)) ||
+				((addr >= hdr->ramdisk_addr) &&
+					(addr <= hdr->ramdisk_addr + hdr->ramdisk_size))) {
+				printf("Fail: booti address overlap with ramdisk address\n");
+				return 1;
+			}
+			memmove((void *) hdr->ramdisk_addr,
+				(void *)raddr, hdr->ramdisk_size);
+		}
+
+#ifdef CONFIG_OF_LIBFDT
+		if (hdr->second_size && fdtaddr != hdr->second_addr) {
+			/*check overlap*/
+			if (((hdr->second_addr >= addr) &&
+					(hdr->second_addr <= end)) ||
+				((addr >= hdr->second_addr) &&
+					(addr <= hdr->second_addr + hdr->second_size))) {
+				printf("Fail: booti address overlap with FDT address\n");
+				return 1;
+			}
+			memmove((void *) hdr->second_addr,
+				(void *)fdtaddr, hdr->second_size);
+		}
+#endif /*CONFIG_OF_LIBFDT*/
+	}
+
+	printf("kernel   @ %08x (%d)\n", hdr->kernel_addr, hdr->kernel_size);
+	printf("ramdisk  @ %08x (%d)\n", hdr->ramdisk_addr, hdr->ramdisk_size);
+#ifdef CONFIG_OF_LIBFDT
+	if (hdr->second_size)
+		printf("fdt      @ %08x (%d)\n", hdr->second_addr, hdr->second_size);
+#endif /*CONFIG_OF_LIBFDT*/
+
+#ifdef CONFIG_SECURE_BOOT
+#define IVT_SIZE 0x20
+#define CSF_PAD_SIZE 0x2000
+	extern uint32_t authenticate_image(uint32_t ddr_start,
+					   uint32_t image_size);
+
+	image_size = hdr->ramdisk_addr + hdr->ramdisk_size - hdr->kernel_addr -
+		IVT_SIZE - CSF_PAD_SIZE;
+
+	if (authenticate_image(hdr->kernel_addr, image_size)) {
+		printf("Authenticate OK\n");
+	} else {
+		printf("Authenticate image Fail, Please check\n\n");
+		return 1;
+	}
+#endif /*CONFIG_SECURE_BOOT*/
+
+#ifdef CONFIG_CMDLINE_TAG
+	char *commandline = getenv("bootargs");
+
+	/* If no bootargs env, just use hdr command line */
+	if (!commandline) {
+		commandline = (char *)hdr->cmdline;
+#ifdef CONFIG_SERIAL_TAG
+		char appended_cmd_line[FASTBOOT_BOOT_ARGS_SIZE];
+		struct tag_serialnr serialnr;
+		get_board_serial(&serialnr);
+		if (strlen((char *)hdr->cmdline) +
+			strlen("androidboot.serialno") + 17 < FASTBOOT_BOOT_ARGS_SIZE) {
+			sprintf(appended_cmd_line,
+							"%s androidboot.serialno=%08x%08x",
+							(char *)hdr->cmdline,
+							serialnr.high,
+							serialnr.low);
+			commandline = appended_cmd_line;
+		} else {
+			printf("Cannot append androidboot.serialno\n");
+		}
+
+		setenv("bootargs", commandline);
+#endif
 	}
 
-	g_dnl_unregister();
-	g_dnl_clear_detach();
-	return CMD_RET_SUCCESS;
+	/* XXX: in production, you should always use boot.img 's cmdline !!! */
+	printf("kernel cmdline:\n");
+	printf("\tuse boot.img ");
+	printf("command line:\n\t%s\n", commandline);
+#endif /*CONFIG_CMDLINE_TAG*/
+
+	memset(&images, 0, sizeof(images));
+
+	/*Setup lmb for memory reserve*/
+	boot_start_lmb(&images);
+
+	images.ep = hdr->kernel_addr;
+	images.rd_start = hdr->ramdisk_addr;
+	images.rd_end = hdr->ramdisk_addr + hdr->ramdisk_size;
+
+	/*Reserve memory for kernel image*/
+	lmb_reserve(&images.lmb, images.ep, hdr->kernel_size);
+
+#ifdef CONFIG_OF_LIBFDT
+	/*use secondary fields for fdt, second_size= fdt size, second_addr= fdt addr*/
+	images.ft_addr = (char *)(hdr->second_addr);
+	images.ft_len = (ulong)(hdr->second_size);
+	set_working_fdt_addr((ulong)(images.ft_addr));
+#endif /*CONFIG_OF_LIBFDT*/
+
+	arch_preboot_os();
+
+	do_bootm_linux(0, 0, NULL, &images);
+
+	puts("booti: Control returned to monitor - resetting...\n");
+	do_reset(cmdtp, flag, argc, argv);
+	return 1;
+
+fail:
+#ifdef CONFIG_FASTBOOT
+	return do_fastboot(NULL, 0, 0, NULL);
+#else /*! CONFIG_FASTBOOT*/
+	return -1;
+#endif /*! CONFIG_FASTBOOT*/
 }
 
 U_BOOT_CMD(
-	fastboot,	1,	0,	do_fastboot,
-	"use USB Fastboot protocol",
-	"\n"
-	"    - run as a fastboot usb device"
+	booti,	3,	1,	do_booti,
+	"booti   - boot android bootimg from memory\n",
+	"[<addr> | mmc0 | mmc1 | mmc2 | mmcX] [<partition>]\n    "
+	"- boot application image stored in memory or mmc\n"
+	"\t'addr' should be the address of boot image "
+	"which is zImage+ramdisk.img\n"
+	"\t'mmcX' is the mmc device you store your boot.img, "
+	"which will read the boot.img from 1M offset('/boot' partition)\n"
+	"\t 'partition' (optional) is the partition id of your device, "
+	"if no partition give, will going to 'boot' partition\n"
 );
+#endif	/* CONFIG_CMD_BOOTI */
+
+#endif	/* CONFIG_FASTBOOT */