Merge git://www.denx.de/git/u-boot into uboot

1 files changed, 2541 insertions, 0 deletions

diff --git a/common/image.c b/common/image.c
new file mode 100644
index 0000000..f04826a
--- /dev/null
+++ b/common/image.c
@@ -0,0 +1,2541 @@
+/*
+ * (C) Copyright 2008 Semihalf
+ *
+ * (C) Copyright 2000-2006
+ * 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 USE_HOSTCC
+#include <common.h>
+#include <watchdog.h>
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+#include <status_led.h>
+#endif
+
+#ifdef CONFIG_HAS_DATAFLASH
+#include <dataflash.h>
+#endif
+
+#ifdef CONFIG_LOGBUFFER
+#include <logbuff.h>
+#endif
+
+#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
+#include <rtc.h>
+#endif
+
+#include <image.h>
+
+#if defined(CONFIG_FIT) || defined (CONFIG_OF_LIBFDT)
+#include <fdt.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#endif
+
+#if defined(CONFIG_FIT)
+#include <md5.h>
+#include <sha1.h>
+
+static int fit_check_ramdisk (const void *fit, int os_noffset,
+		uint8_t arch, int verify);
+#endif
+
+#ifdef CONFIG_CMD_BDI
+extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static image_header_t* image_get_ramdisk (ulong rd_addr, uint8_t arch,
+						int verify);
+#else
+#include "mkimage.h"
+#include <md5.h>
+#include <time.h>
+#include <image.h>
+#endif /* !USE_HOSTCC*/
+
+typedef struct table_entry {
+	int	id;		/* as defined in image.h	*/
+	char	*sname;		/* short (input) name		*/
+	char	*lname;		/* long (output) name		*/
+} table_entry_t;
+
+static table_entry_t uimage_arch[] = {
+	{	IH_ARCH_INVALID,	NULL,		"Invalid ARCH",	},
+	{	IH_ARCH_ALPHA,		"alpha",	"Alpha",	},
+	{	IH_ARCH_ARM,		"arm",		"ARM",		},
+	{	IH_ARCH_I386,		"x86",		"Intel x86",	},
+	{	IH_ARCH_IA64,		"ia64",		"IA64",		},
+	{	IH_ARCH_M68K,		"m68k",		"M68K",		},
+	{	IH_ARCH_MICROBLAZE,	"microblaze",	"MicroBlaze",	},
+	{	IH_ARCH_MIPS,		"mips",		"MIPS",		},
+	{	IH_ARCH_MIPS64,		"mips64",	"MIPS 64 Bit",	},
+	{	IH_ARCH_NIOS,		"nios",		"NIOS",		},
+	{	IH_ARCH_NIOS2,		"nios2",	"NIOS II",	},
+	{	IH_ARCH_PPC,		"ppc",		"PowerPC",	},
+	{	IH_ARCH_S390,		"s390",		"IBM S390",	},
+	{	IH_ARCH_SH,		"sh",		"SuperH",	},
+	{	IH_ARCH_SPARC,		"sparc",	"SPARC",	},
+	{	IH_ARCH_SPARC64,	"sparc64",	"SPARC 64 Bit",	},
+	{	IH_ARCH_BLACKFIN,	"blackfin",	"Blackfin",	},
+	{	IH_ARCH_AVR32,		"avr32",	"AVR32",	},
+	{	-1,			"",		"",		},
+};
+
+static table_entry_t uimage_os[] = {
+	{	IH_OS_INVALID,	NULL,		"Invalid OS",		},
+#if defined(CONFIG_ARTOS) || defined(USE_HOSTCC)
+	{	IH_OS_ARTOS,	"artos",	"ARTOS",		},
+#endif
+	{	IH_OS_LINUX,	"linux",	"Linux",		},
+#if defined(CONFIG_LYNXKDI) || defined(USE_HOSTCC)
+	{	IH_OS_LYNXOS,	"lynxos",	"LynxOS",		},
+#endif
+	{	IH_OS_NETBSD,	"netbsd",	"NetBSD",		},
+	{	IH_OS_RTEMS,	"rtems",	"RTEMS",		},
+	{	IH_OS_U_BOOT,	"u-boot",	"U-Boot",		},
+#if defined(CONFIG_CMD_ELF) || defined(USE_HOSTCC)
+	{	IH_OS_QNX,	"qnx",		"QNX",			},
+	{	IH_OS_VXWORKS,	"vxworks",	"VxWorks",		},
+#endif
+#ifdef USE_HOSTCC
+	{	IH_OS_4_4BSD,	"4_4bsd",	"4_4BSD",		},
+	{	IH_OS_DELL,	"dell",		"Dell",			},
+	{	IH_OS_ESIX,	"esix",		"Esix",			},
+	{	IH_OS_FREEBSD,	"freebsd",	"FreeBSD",		},
+	{	IH_OS_IRIX,	"irix",		"Irix",			},
+	{	IH_OS_NCR,	"ncr",		"NCR",			},
+	{	IH_OS_OPENBSD,	"openbsd",	"OpenBSD",		},
+	{	IH_OS_PSOS,	"psos",		"pSOS",			},
+	{	IH_OS_SCO,	"sco",		"SCO",			},
+	{	IH_OS_SOLARIS,	"solaris",	"Solaris",		},
+	{	IH_OS_SVR4,	"svr4",		"SVR4",			},
+#endif
+	{	-1,		"",		"",			},
+};
+
+static table_entry_t uimage_type[] = {
+	{	IH_TYPE_INVALID,    NULL,	  "Invalid Image",	},
+	{	IH_TYPE_FILESYSTEM, "filesystem", "Filesystem Image",	},
+	{	IH_TYPE_FIRMWARE,   "firmware",	  "Firmware",		},
+	{	IH_TYPE_KERNEL,	    "kernel",	  "Kernel Image",	},
+	{	IH_TYPE_MULTI,	    "multi",	  "Multi-File Image",	},
+	{	IH_TYPE_RAMDISK,    "ramdisk",	  "RAMDisk Image",	},
+	{	IH_TYPE_SCRIPT,     "script",	  "Script",		},
+	{	IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
+	{	IH_TYPE_FLATDT,     "flat_dt",    "Flat Device Tree",	},
+	{	-1,		    "",		  "",			},
+};
+
+static table_entry_t uimage_comp[] = {
+	{	IH_COMP_NONE,	"none",		"uncompressed",		},
+	{	IH_COMP_BZIP2,	"bzip2",	"bzip2 compressed",	},
+	{	IH_COMP_GZIP,	"gzip",		"gzip compressed",	},
+	{	-1,		"",		"",			},
+};
+
+unsigned long crc32 (unsigned long, const unsigned char *, unsigned int);
+static void genimg_print_size (uint32_t size);
+#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
+static void genimg_print_time (time_t timestamp);
+#endif
+
+/*****************************************************************************/
+/* Legacy format routines */
+/*****************************************************************************/
+int image_check_hcrc (image_header_t *hdr)
+{
+	ulong hcrc;
+	ulong len = image_get_header_size ();
+	image_header_t header;
+
+	/* Copy header so we can blank CRC field for re-calculation */
+	memmove (&header, (char *)hdr, image_get_header_size ());
+	image_set_hcrc (&header, 0);
+
+	hcrc = crc32 (0, (unsigned char *)&header, len);
+
+	return (hcrc == image_get_hcrc (hdr));
+}
+
+int image_check_dcrc (image_header_t *hdr)
+{
+	ulong data = image_get_data (hdr);
+	ulong len = image_get_data_size (hdr);
+	ulong dcrc = crc32 (0, (unsigned char *)data, len);
+
+	return (dcrc == image_get_dcrc (hdr));
+}
+
+#ifndef USE_HOSTCC
+int image_check_dcrc_wd (image_header_t *hdr, ulong chunksz)
+{
+	ulong dcrc = 0;
+	ulong len = image_get_data_size (hdr);
+	ulong data = image_get_data (hdr);
+
+#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
+	ulong cdata = data;
+	ulong edata = cdata + len;
+
+	while (cdata < edata) {
+		ulong chunk = edata - cdata;
+
+		if (chunk > chunksz)
+			chunk = chunksz;
+		dcrc = crc32 (dcrc, (unsigned char *)cdata, chunk);
+		cdata += chunk;
+
+		WATCHDOG_RESET ();
+	}
+#else
+	dcrc = crc32 (0, (unsigned char *)data, len);
+#endif
+
+	return (dcrc == image_get_dcrc (hdr));
+}
+#endif /* !USE_HOSTCC */
+
+/**
+ * image_multi_count - get component (sub-image) count
+ * @hdr: pointer to the header of the multi component image
+ *
+ * image_multi_count() returns number of components in a multi
+ * component image.
+ *
+ * Note: no checking of the image type is done, caller must pass
+ * a valid multi component image.
+ *
+ * returns:
+ *     number of components
+ */
+ulong image_multi_count (image_header_t *hdr)
+{
+	ulong i, count = 0;
+	uint32_t *size;
+
+	/* get start of the image payload, which in case of multi
+	 * component images that points to a table of component sizes */
+	size = (uint32_t *)image_get_data (hdr);
+
+	/* count non empty slots */
+	for (i = 0; size[i]; ++i)
+		count++;
+
+	return count;
+}
+
+/**
+ * image_multi_getimg - get component data address and size
+ * @hdr: pointer to the header of the multi component image
+ * @idx: index of the requested component
+ * @data: pointer to a ulong variable, will hold component data address
+ * @len: pointer to a ulong variable, will hold component size
+ *
+ * image_multi_getimg() returns size and data address for the requested
+ * component in a multi component image.
+ *
+ * Note: no checking of the image type is done, caller must pass
+ * a valid multi component image.
+ *
+ * returns:
+ *     data address and size of the component, if idx is valid
+ *     0 in data and len, if idx is out of range
+ */
+void image_multi_getimg (image_header_t *hdr, ulong idx,
+			ulong *data, ulong *len)
+{
+	int i;
+	uint32_t *size;
+	ulong offset, tail, count, img_data;
+
+	/* get number of component */
+	count = image_multi_count (hdr);
+
+	/* get start of the image payload, which in case of multi
+	 * component images that points to a table of component sizes */
+	size = (uint32_t *)image_get_data (hdr);
+
+	/* get address of the proper component data start, which means
+	 * skipping sizes table (add 1 for last, null entry) */
+	img_data = image_get_data (hdr) + (count + 1) * sizeof (uint32_t);
+
+	if (idx < count) {
+		*len = uimage_to_cpu (size[idx]);
+		offset = 0;
+		tail = 0;
+
+		/* go over all indices preceding requested component idx */
+		for (i = 0; i < idx; i++) {
+			/* add up i-th component size */
+			offset += uimage_to_cpu (size[i]);
+
+			/* add up alignment for i-th component */
+			tail += (4 - uimage_to_cpu (size[i]) % 4);
+		}
+
+		/* calculate idx-th component data address */
+		*data = img_data + offset + tail;
+	} else {
+		*len = 0;
+		*data = 0;
+	}
+}
+
+static void image_print_type (image_header_t *hdr)
+{
+	const char *os, *arch, *type, *comp;
+
+	os = genimg_get_os_name (image_get_os (hdr));
+	arch = genimg_get_arch_name (image_get_arch (hdr));
+	type = genimg_get_type_name (image_get_type (hdr));
+	comp = genimg_get_comp_name (image_get_comp (hdr));
+
+	printf ("%s %s %s (%s)\n", arch, os, type, comp);
+}
+
+/**
+ * __image_print_contents - prints out the contents of the legacy format image
+ * @hdr: pointer to the legacy format image header
+ * @p: pointer to prefix string
+ *
+ * __image_print_contents() formats a multi line legacy image contents description.
+ * The routine prints out all header fields followed by the size/offset data
+ * for MULTI/SCRIPT images.
+ *
+ * returns:
+ *     no returned results
+ */
+static void __image_print_contents (image_header_t *hdr, const char *p)
+{
+	printf ("%sImage Name:   %.*s\n", p, IH_NMLEN, image_get_name (hdr));
+#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
+	printf ("%sCreated:      ", p);
+	genimg_print_time ((time_t)image_get_time (hdr));
+#endif
+	printf ("%sImage Type:   ", p);
+	image_print_type (hdr);
+	printf ("%sData Size:    ", p);
+	genimg_print_size (image_get_data_size (hdr));
+	printf ("%sLoad Address: %08x\n", p, image_get_load (hdr));
+	printf ("%sEntry Point:  %08x\n", p, image_get_ep (hdr));
+
+	if (image_check_type (hdr, IH_TYPE_MULTI) ||
+			image_check_type (hdr, IH_TYPE_SCRIPT)) {
+		int i;
+		ulong data, len;
+		ulong count = image_multi_count (hdr);
+
+		printf ("%sContents:\n", p);
+		for (i = 0; i < count; i++) {
+			image_multi_getimg (hdr, i, &data, &len);
+
+			printf ("%s   Image %d: ", p, i);
+			genimg_print_size (len);
+
+			if (image_check_type (hdr, IH_TYPE_SCRIPT) && i > 0) {
+				/*
+				 * the user may need to know offsets
+				 * if planning to do something with
+				 * multiple files
+				 */
+				printf ("%s    Offset = 0x%08lx\n", p, data);
+			}
+		}
+	}
+}
+
+inline void image_print_contents (image_header_t *hdr)
+{
+	__image_print_contents (hdr, "   ");
+}
+
+inline void image_print_contents_noindent (image_header_t *hdr)
+{
+	__image_print_contents (hdr, "");
+}
+
+#ifndef USE_HOSTCC
+/**
+ * image_get_ramdisk - get and verify ramdisk image
+ * @rd_addr: ramdisk image start address
+ * @arch: expected ramdisk architecture
+ * @verify: checksum verification flag
+ *
+ * image_get_ramdisk() returns a pointer to the verified ramdisk image
+ * header. Routine receives image start address and expected architecture
+ * flag. Verification done covers data and header integrity and os/type/arch
+ * fields checking.
+ *
+ * If dataflash support is enabled routine checks for dataflash addresses
+ * and handles required dataflash reads.
+ *
+ * returns:
+ *     pointer to a ramdisk image header, if image was found and valid
+ *     otherwise, return NULL
+ */
+static image_header_t* image_get_ramdisk (ulong rd_addr, uint8_t arch,
+						int verify)
+{
+	image_header_t *rd_hdr = (image_header_t *)rd_addr;
+
+	if (!image_check_magic (rd_hdr)) {
+		puts ("Bad Magic Number\n");
+		show_boot_progress (-10);
+		return NULL;
+	}
+
+	if (!image_check_hcrc (rd_hdr)) {
+		puts ("Bad Header Checksum\n");
+		show_boot_progress (-11);
+		return NULL;
+	}
+
+	show_boot_progress (10);
+	image_print_contents (rd_hdr);
+
+	if (verify) {
+		puts("   Verifying Checksum ... ");
+		if (!image_check_dcrc_wd (rd_hdr, CHUNKSZ)) {
+			puts ("Bad Data CRC\n");
+			show_boot_progress (-12);
+			return NULL;
+		}
+		puts("OK\n");
+	}
+
+	show_boot_progress (11);
+
+	if (!image_check_os (rd_hdr, IH_OS_LINUX) ||
+	    !image_check_arch (rd_hdr, arch) ||
+	    !image_check_type (rd_hdr, IH_TYPE_RAMDISK)) {
+		printf ("No Linux %s Ramdisk Image\n",
+				genimg_get_arch_name(arch));
+		show_boot_progress (-13);
+		return NULL;
+	}
+
+	return rd_hdr;
+}
+#endif /* !USE_HOSTCC */
+
+/*****************************************************************************/
+/* Shared dual-format routines */
+/*****************************************************************************/
+#ifndef USE_HOSTCC
+int getenv_verify (void)
+{
+	char *s = getenv ("verify");
+	return (s && (*s == 'n')) ? 0 : 1;
+}
+
+int getenv_autostart (void)
+{
+	char *s = getenv ("autostart");
+	return (s && (*s == 'n')) ? 0 : 1;
+}
+
+ulong getenv_bootm_low(void)
+{
+	char *s = getenv ("bootm_low");
+	if (s) {
+		ulong tmp = simple_strtoul (s, NULL, 16);
+		return tmp;
+	}
+
+#if defined(CFG_SDRAM_BASE)
+	return CFG_SDRAM_BASE;
+#elif defined(CONFIG_ARM)
+	return gd->bd->bi_dram[0].start;
+#else
+	return 0;
+#endif
+}
+
+ulong getenv_bootm_size(void)
+{
+	char *s = getenv ("bootm_size");
+	if (s) {
+		ulong tmp = simple_strtoul (s, NULL, 16);
+		return tmp;
+	}
+
+#if defined(CONFIG_ARM)
+	return gd->bd->bi_dram[0].size;
+#else
+	return gd->bd->bi_memsize;
+#endif
+}
+
+void memmove_wd (void *to, void *from, size_t len, ulong chunksz)
+{
+#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
+	while (len > 0) {
+		size_t tail = (len > chunksz) ? chunksz : len;
+		WATCHDOG_RESET ();
+		memmove (to, from, tail);
+		to += tail;
+		from += tail;
+		len -= tail;
+	}
+#else	/* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
+	memmove (to, from, len);
+#endif	/* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
+}
+#endif /* !USE_HOSTCC */
+
+static void genimg_print_size (uint32_t size)
+{
+#ifndef USE_HOSTCC
+	printf ("%d Bytes = ", size);
+	print_size (size, "\n");
+#else
+	printf ("%d Bytes = %.2f kB = %.2f MB\n",
+			size, (double)size / 1.024e3,
+			(double)size / 1.048576e6);
+#endif
+}
+
+#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
+static void genimg_print_time (time_t timestamp)
+{
+#ifndef USE_HOSTCC
+	struct rtc_time tm;
+
+	to_tm (timestamp, &tm);
+	printf ("%4d-%02d-%02d  %2d:%02d:%02d UTC\n",
+			tm.tm_year, tm.tm_mon, tm.tm_mday,
+			tm.tm_hour, tm.tm_min, tm.tm_sec);
+#else
+	printf ("%s", ctime(&timestamp));
+#endif
+}
+#endif /* CONFIG_TIMESTAMP || CONFIG_CMD_DATE || USE_HOSTCC */
+
+/**
+ * get_table_entry_name - translate entry id to long name
+ * @table: pointer to a translation table for entries of a specific type
+ * @msg: message to be returned when translation fails
+ * @id: entry id to be translated
+ *
+ * get_table_entry_name() will go over translation table trying to find
+ * entry that matches given id. If matching entry is found, its long
+ * name is returned to the caller.
+ *
+ * returns:
+ *     long entry name if translation succeeds
+ *     msg otherwise
+ */
+static char *get_table_entry_name (table_entry_t *table, char *msg, int id)
+{
+	for (; table->id >= 0; ++table) {
+		if (table->id == id)
+			return (table->lname);
+	}
+	return (msg);
+}
+
+const char *genimg_get_os_name (uint8_t os)
+{
+	return (get_table_entry_name (uimage_os, "Unknown OS", os));
+}
+
+const char *genimg_get_arch_name (uint8_t arch)
+{
+	return (get_table_entry_name (uimage_arch, "Unknown Architecture", arch));
+}
+
+const char *genimg_get_type_name (uint8_t type)
+{
+	return (get_table_entry_name (uimage_type, "Unknown Image", type));
+}
+
+const char *genimg_get_comp_name (uint8_t comp)
+{
+	return (get_table_entry_name (uimage_comp, "Unknown Compression", comp));
+}
+
+/**
+ * get_table_entry_id - translate short entry name to id
+ * @table: pointer to a translation table for entries of a specific type
+ * @table_name: to be used in case of error
+ * @name: entry short name to be translated
+ *
+ * get_table_entry_id() will go over translation table trying to find
+ * entry that matches given short name. If matching entry is found,
+ * its id returned to the caller.
+ *
+ * returns:
+ *     entry id if translation succeeds
+ *     -1 otherwise
+ */
+static int get_table_entry_id (table_entry_t *table,
+		const char *table_name, const char *name)
+{
+	table_entry_t *t;
+#ifdef USE_HOSTCC
+	int first = 1;
+
+	for (t = table; t->id >= 0; ++t) {
+		if (t->sname && strcasecmp(t->sname, name) == 0)
+			return (t->id);
+	}
+
+	fprintf (stderr, "\nInvalid %s Type - valid names are", table_name);
+	for (t = table; t->id >= 0; ++t) {
+		if (t->sname == NULL)
+			continue;
+		fprintf (stderr, "%c %s", (first) ? ':' : ',', t->sname);
+		first = 0;
+	}
+	fprintf (stderr, "\n");
+#else
+	for (t = table; t->id >= 0; ++t) {
+		if (t->sname && strcmp(t->sname, name) == 0)
+			return (t->id);
+	}
+	debug ("Invalid %s Type: %s\n", table_name, name);
+#endif /* USE_HOSTCC */
+	return (-1);
+}
+
+int genimg_get_os_id (const char *name)
+{
+	return (get_table_entry_id (uimage_os, "OS", name));
+}
+
+int genimg_get_arch_id (const char *name)
+{
+	return (get_table_entry_id (uimage_arch, "CPU", name));
+}
+
+int genimg_get_type_id (const char *name)
+{
+	return (get_table_entry_id (uimage_type, "Image", name));
+}
+
+int genimg_get_comp_id (const char *name)
+{
+	return (get_table_entry_id (uimage_comp, "Compression", name));
+}
+
+#ifndef USE_HOSTCC
+/**
+ * genimg_get_format - get image format type
+ * @img_addr: image start address
+ *
+ * genimg_get_format() checks whether provided address points to a valid
+ * legacy or FIT image.
+ *
+ * New uImage format and FDT blob are based on a libfdt. FDT blob
+ * may be passed directly or embedded in a FIT image. In both situations
+ * genimg_get_format() must be able to dectect libfdt header.
+ *
+ * returns:
+ *     image format type or IMAGE_FORMAT_INVALID if no image is present
+ */
+int genimg_get_format (void *img_addr)
+{
+	ulong		format = IMAGE_FORMAT_INVALID;
+	image_header_t	*hdr;
+#if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
+	char		*fit_hdr;
+#endif
+
+	hdr = (image_header_t *)img_addr;
+	if (image_check_magic(hdr))
+		format = IMAGE_FORMAT_LEGACY;
+#if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
+	else {
+		fit_hdr = (char *)img_addr;
+		if (fdt_check_header (fit_hdr) == 0)
+			format = IMAGE_FORMAT_FIT;
+	}
+#endif
+
+	return format;
+}
+
+/**
+ * genimg_get_image - get image from special storage (if necessary)
+ * @img_addr: image start address
+ *
+ * genimg_get_image() checks if provided image start adddress is located
+ * in a dataflash storage. If so, image is moved to a system RAM memory.
+ *
+ * returns:
+ *     image start address after possible relocation from special storage
+ */
+ulong genimg_get_image (ulong img_addr)
+{
+	ulong ram_addr = img_addr;
+
+#ifdef CONFIG_HAS_DATAFLASH
+	ulong h_size, d_size;
+
+	if (addr_dataflash (img_addr)){
+		/* ger RAM address */
+		ram_addr = CFG_LOAD_ADDR;
+
+		/* get header size */
+		h_size = image_get_header_size ();
+#if defined(CONFIG_FIT)
+		if (sizeof(struct fdt_header) > h_size)
+			h_size = sizeof(struct fdt_header);
+#endif
+
+		/* read in header */
+		debug ("   Reading image header from dataflash address "
+			"%08lx to RAM address %08lx\n", img_addr, ram_addr);
+
+		read_dataflash (img_addr, h_size, (char *)ram_addr);
+
+		/* get data size */
+		switch (genimg_get_format ((void *)ram_addr)) {
+		case IMAGE_FORMAT_LEGACY:
+			d_size = image_get_data_size ((image_header_t *)ram_addr);
+			debug ("   Legacy format image found at 0x%08lx, size 0x%08lx\n",
+					ram_addr, d_size);
+			break;
+#if defined(CONFIG_FIT)
+		case IMAGE_FORMAT_FIT:
+			d_size = fit_get_size ((const void *)ram_addr) - h_size;
+			debug ("   FIT/FDT format image found at 0x%08lx, size 0x%08lx\n",
+					ram_addr, d_size);
+			break;
+#endif
+		default:
+			printf ("   No valid image found at 0x%08lx\n", img_addr);
+			return ram_addr;
+		}
+
+		/* read in image data */
+		debug ("   Reading image remaining data from dataflash address "
+			"%08lx to RAM address %08lx\n", img_addr + h_size,
+			ram_addr + h_size);
+
+		read_dataflash (img_addr + h_size, d_size,
+				(char *)(ram_addr + h_size));
+
+	}
+#endif /* CONFIG_HAS_DATAFLASH */
+
+	return ram_addr;
+}
+
+/**
+ * fit_has_config - check if there is a valid FIT configuration
+ * @images: pointer to the bootm command headers structure
+ *
+ * fit_has_config() checks if there is a FIT configuration in use
+ * (if FTI support is present).
+ *
+ * returns:
+ *     0, no FIT support or no configuration found
+ *     1, configuration found
+ */
+int genimg_has_config (bootm_headers_t *images)
+{
+#if defined(CONFIG_FIT)
+	if (images->fit_uname_cfg)
+		return 1;
+#endif
+	return 0;
+}
+
+/**
+ * boot_get_ramdisk - main ramdisk handling routine
+ * @argc: command argument count
+ * @argv: command argument list
+ * @images: pointer to the bootm images structure
+ * @arch: expected ramdisk architecture
+ * @rd_start: pointer to a ulong variable, will hold ramdisk start address
+ * @rd_end: pointer to a ulong variable, will hold ramdisk end
+ *
+ * boot_get_ramdisk() is responsible for finding a valid ramdisk image.
+ * Curently supported are the following ramdisk sources:
+ *      - multicomponent kernel/ramdisk image,
+ *      - commandline provided address of decicated ramdisk image.
+ *
+ * returns:
+ *     0, if ramdisk image was found and valid, or skiped
+ *     rd_start and rd_end are set to ramdisk start/end addresses if
+ *     ramdisk image is found and valid
+ *
+ *     1, if ramdisk image is found but corrupted
+ *     rd_start and rd_end are set to 0 if no ramdisk exists
+ */
+int boot_get_ramdisk (int argc, char *argv[], bootm_headers_t *images,
+		uint8_t arch, ulong *rd_start, ulong *rd_end)
+{
+	ulong rd_addr, rd_load;
+	ulong rd_data, rd_len;
+	image_header_t *rd_hdr;
+#if defined(CONFIG_FIT)
+	void		*fit_hdr;
+	const char	*fit_uname_config = NULL;
+	const char	*fit_uname_ramdisk = NULL;
+	ulong		default_addr;
+	int		rd_noffset;
+	int		cfg_noffset;
+	const void	*data;
+	size_t		size;
+#endif
+
+	*rd_start = 0;
+	*rd_end = 0;
+
+	/*
+	 * Look for a '-' which indicates to ignore the
+	 * ramdisk argument
+	 */
+	if ((argc >= 3) && (strcmp(argv[2], "-") ==  0)) {
+		debug ("## Skipping init Ramdisk\n");
+		rd_len = rd_data = 0;
+	} else if (argc >= 3 || genimg_has_config (images)) {
+#if defined(CONFIG_FIT)
+		if (argc >= 3) {
+			/*
+			 * If the init ramdisk comes from the FIT image and
+			 * the FIT image address is omitted in the command
+			 * line argument, try to use os FIT image address or
+			 * default load address.
+			 */
+			if (images->fit_uname_os)
+				default_addr = (ulong)images->fit_hdr_os;
+			else
+				default_addr = load_addr;
+
+			if (fit_parse_conf (argv[2], default_addr,
+						&rd_addr, &fit_uname_config)) {
+				debug ("*  ramdisk: config '%s' from image at 0x%08lx\n",
+						fit_uname_config, rd_addr);
+			} else if (fit_parse_subimage (argv[2], default_addr,
+						&rd_addr, &fit_uname_ramdisk)) {
+				debug ("*  ramdisk: subimage '%s' from image at 0x%08lx\n",
+						fit_uname_ramdisk, rd_addr);
+			} else
+#endif
+			{
+				rd_addr = simple_strtoul(argv[2], NULL, 16);
+				debug ("*  ramdisk: cmdline image address = 0x%08lx\n",
+						rd_addr);
+			}
+#if defined(CONFIG_FIT)
+		} else {
+			/* use FIT configuration provided in first bootm
+			 * command argument
+			 */
+			rd_addr = (ulong)images->fit_hdr_os;
+			fit_uname_config = images->fit_uname_cfg;
+			debug ("*  ramdisk: using config '%s' from image at 0x%08lx\n",
+					fit_uname_config, rd_addr);
+
+			/*
+			 * Check whether configuration has ramdisk defined,
+			 * if not, don't try to use it, quit silently.
+			 */
+			fit_hdr = (void *)rd_addr;
+			cfg_noffset = fit_conf_get_node (fit_hdr, fit_uname_config);
+			if (cfg_noffset < 0) {
+				debug ("*  ramdisk: no such config\n");
+				return 0;
+			}
+
+			rd_noffset = fit_conf_get_ramdisk_node (fit_hdr, cfg_noffset);
+			if (rd_noffset < 0) {
+				debug ("*  ramdisk: no ramdisk in config\n");
+				return 0;
+			}
+		}
+#endif
+
+		/* copy from dataflash if needed */
+		rd_addr = genimg_get_image (rd_addr);
+
+		/*
+		 * Check if there is an initrd image at the
+		 * address provided in the second bootm argument
+		 * check image type, for FIT images get FIT node.
+		 */
+		switch (genimg_get_format ((void *)rd_addr)) {
+		case IMAGE_FORMAT_LEGACY:
+			printf ("## Loading init Ramdisk from Legacy "
+					"Image at %08lx ...\n", rd_addr);
+
+			show_boot_progress (9);
+			rd_hdr = image_get_ramdisk (rd_addr, arch,
+							images->verify);
+
+			if (rd_hdr == NULL)
+				return 1;
+
+			rd_data = image_get_data (rd_hdr);
+			rd_len = image_get_data_size (rd_hdr);
+			rd_load = image_get_load (rd_hdr);
+			break;
+#if defined(CONFIG_FIT)
+		case IMAGE_FORMAT_FIT:
+			fit_hdr = (void *)rd_addr;
+			printf ("## Loading init Ramdisk from FIT "
+					"Image at %08lx ...\n", rd_addr);
+
+			show_boot_progress (120);
+			if (!fit_check_format (fit_hdr)) {
+				puts ("Bad FIT ramdisk image format!\n");
+				show_boot_progress (-120);
+				return 0;
+			}
+			show_boot_progress (121);
+
+			if (!fit_uname_ramdisk) {
+				/*
+				 * no ramdisk image node unit name, try to get config
+				 * node first. If config unit node name is NULL
+				 * fit_conf_get_node() will try to find default config node
+				 */
+				show_boot_progress (122);
+				cfg_noffset = fit_conf_get_node (fit_hdr, fit_uname_config);
+				if (cfg_noffset < 0) {
+					puts ("Could not find configuration node\n");
+					show_boot_progress (-122);
+					return 0;
+				}
+				fit_uname_config = fdt_get_name (fit_hdr, cfg_noffset, NULL);
+				printf ("   Using '%s' configuration\n", fit_uname_config);
+
+				rd_noffset = fit_conf_get_ramdisk_node (fit_hdr, cfg_noffset);
+				fit_uname_ramdisk = fit_get_name (fit_hdr, rd_noffset, NULL);
+			} else {
+				/* get ramdisk component image node offset */
+				show_boot_progress (123);
+				rd_noffset = fit_image_get_node (fit_hdr, fit_uname_ramdisk);
+			}
+			if (rd_noffset < 0) {
+				puts ("Could not find subimage node\n");
+				show_boot_progress (-124);
+				return 0;
+			}
+
+			printf ("   Trying '%s' ramdisk subimage\n", fit_uname_ramdisk);
+
+			show_boot_progress (125);
+			if (!fit_check_ramdisk (fit_hdr, rd_noffset, arch, images->verify))
+				return 0;
+
+			/* get ramdisk image data address and length */
+			if (fit_image_get_data (fit_hdr, rd_noffset, &data, &size)) {
+				puts ("Could not find ramdisk subimage data!\n");
+				show_boot_progress (-127);
+				return 0;
+			}
+			show_boot_progress (128);
+
+			rd_data = (ulong)data;
+			rd_len = size;
+
+			if (fit_image_get_load (fit_hdr, rd_noffset, &rd_load)) {
+				puts ("Can't get ramdisk subimage load address!\n");
+				show_boot_progress (-129);
+				return 0;
+			}
+			show_boot_progress (129);
+
+			images->fit_hdr_rd = fit_hdr;
+			images->fit_uname_rd = fit_uname_ramdisk;
+			images->fit_noffset_rd = rd_noffset;
+			break;
+#endif
+		default:
+			puts ("Wrong Ramdisk Image Format\n");
+			rd_data = rd_len = rd_load = 0;
+		}
+
+#if defined(CONFIG_B2) || defined(CONFIG_EVB4510) || defined(CONFIG_ARMADILLO)
+		/*
+		 * We need to copy the ramdisk to SRAM to let Linux boot
+		 */
+		if (rd_data) {
+			memmove ((void *)rd_load, (uchar *)rd_data, rd_len);
+			rd_data = rd_load;
+		}
+#endif /* CONFIG_B2 || CONFIG_EVB4510 || CONFIG_ARMADILLO */
+
+	} else if (images->legacy_hdr_valid &&
+			image_check_type (images->legacy_hdr_os, IH_TYPE_MULTI)) {
+		/*
+		 * Now check if we have a legacy mult-component image,
+		 * get second entry data start address and len.
+		 */
+		show_boot_progress (13);
+		printf ("## Loading init Ramdisk from multi component "
+				"Legacy Image at %08lx ...\n",
+				(ulong)images->legacy_hdr_os);
+
+		image_multi_getimg (images->legacy_hdr_os, 1, &rd_data, &rd_len);
+	} else {
+		/*
+		 * no initrd image
+		 */
+		show_boot_progress (14);
+		rd_len = rd_data = 0;
+	}
+
+	if (!rd_data) {
+		debug ("## No init Ramdisk\n");
+	} else {
+		*rd_start = rd_data;
+		*rd_end = rd_data + rd_len;
+	}
+	debug ("   ramdisk start = 0x%08lx, ramdisk end = 0x%08lx\n",
+			*rd_start, *rd_end);
+
+	return 0;
+}
+
+#if defined(CONFIG_PPC) || defined(CONFIG_M68K)
+/**
+ * boot_ramdisk_high - relocate init ramdisk
+ * @lmb: pointer to lmb handle, will be used for memory mgmt
+ * @rd_data: ramdisk data start address
+ * @rd_len: ramdisk data length
+ * @initrd_start: pointer to a ulong variable, will hold final init ramdisk
+ *      start address (after possible relocation)
+ * @initrd_end: pointer to a ulong variable, will hold final init ramdisk
+ *      end address (after possible relocation)
+ *
+ * boot_ramdisk_high() takes a relocation hint from "initrd_high" environement
+ * variable and if requested ramdisk data is moved to a specified location.
+ *
+ * Initrd_start and initrd_end are set to final (after relocation) ramdisk
+ * start/end addresses if ramdisk image start and len were provided,
+ * otherwise set initrd_start and initrd_end set to zeros.
+ *
+ * returns:
+ *      0 - success
+ *     -1 - failure
+ */
+int boot_ramdisk_high (struct lmb *lmb, ulong rd_data, ulong rd_len,
+		  ulong *initrd_start, ulong *initrd_end)
+{
+	char	*s;
+	ulong	initrd_high;
+	int	initrd_copy_to_ram = 1;
+
+	if ((s = getenv ("initrd_high")) != NULL) {
+		/* a value of "no" or a similar string will act like 0,
+		 * turning the "load high" feature off. This is intentional.
+		 */
+		initrd_high = simple_strtoul (s, NULL, 16);
+		if (initrd_high == ~0)
+			initrd_copy_to_ram = 0;
+	} else {
+		/* not set, no restrictions to load high */
+		initrd_high = ~0;
+	}
+
+	debug ("## initrd_high = 0x%08lx, copy_to_ram = %d\n",
+			initrd_high, initrd_copy_to_ram);
+
+	if (rd_data) {
+		if (!initrd_copy_to_ram) {	/* zero-copy ramdisk support */
+			debug ("   in-place initrd\n");
+			*initrd_start = rd_data;
+			*initrd_end = rd_data + rd_len;
+			lmb_reserve(lmb, rd_data, rd_len);
+		} else {
+			if (initrd_high)
+				*initrd_start = lmb_alloc_base (lmb, rd_len, 0x1000, initrd_high);
+			else
+				*initrd_start = lmb_alloc (lmb, rd_len, 0x1000);
+
+			if (*initrd_start == 0) {
+				puts ("ramdisk - allocation error\n");
+				goto error;
+			}
+			show_boot_progress (12);
+
+			*initrd_end = *initrd_start + rd_len;
+			printf ("   Loading Ramdisk to %08lx, end %08lx ... ",
+					*initrd_start, *initrd_end);
+
+			memmove_wd ((void *)*initrd_start,
+					(void *)rd_data, rd_len, CHUNKSZ);
+
+			puts ("OK\n");
+		}
+	} else {
+		*initrd_start = 0;
+		*initrd_end = 0;
+	}
+	debug ("   ramdisk load start = 0x%08lx, ramdisk load end = 0x%08lx\n",
+			*initrd_start, *initrd_end);
+
+	return 0;
+
+error:
+	return -1;
+}
+
+/**
+ * boot_get_cmdline - allocate and initialize kernel cmdline
+ * @lmb: pointer to lmb handle, will be used for memory mgmt
+ * @cmd_start: pointer to a ulong variable, will hold cmdline start
+ * @cmd_end: pointer to a ulong variable, will hold cmdline end
+ * @bootmap_base: ulong variable, holds offset in physical memory to
+ * base of bootmap
+ *
+ * boot_get_cmdline() allocates space for kernel command line below
+ * BOOTMAPSZ + bootmap_base address. If "bootargs" U-boot environemnt
+ * variable is present its contents is copied to allocated kernel
+ * command line.
+ *
+ * returns:
+ *      0 - success
+ *     -1 - failure
+ */
+int boot_get_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end,
+			ulong bootmap_base)
+{
+	char *cmdline;
+	char *s;
+
+	cmdline = (char *)lmb_alloc_base(lmb, CFG_BARGSIZE, 0xf,
+					 CFG_BOOTMAPSZ + bootmap_base);
+
+	if (cmdline == NULL)
+		return -1;
+
+	if ((s = getenv("bootargs")) == NULL)
+		s = "";
+
+	strcpy(cmdline, s);
+
+	*cmd_start = (ulong) & cmdline[0];
+	*cmd_end = *cmd_start + strlen(cmdline);
+
+	debug ("## cmdline at 0x%08lx ... 0x%08lx\n", *cmd_start, *cmd_end);
+
+	return 0;
+}
+
+/**
+ * boot_get_kbd - allocate and initialize kernel copy of board info
+ * @lmb: pointer to lmb handle, will be used for memory mgmt
+ * @kbd: double pointer to board info data
+ * @bootmap_base: ulong variable, holds offset in physical memory to
+ * base of bootmap
+ *
+ * boot_get_kbd() allocates space for kernel copy of board info data below
+ * BOOTMAPSZ + bootmap_base address and kernel board info is initialized with
+ * the current u-boot board info data.
+ *
+ * returns:
+ *      0 - success
+ *     -1 - failure
+ */
+int boot_get_kbd (struct lmb *lmb, bd_t **kbd, ulong bootmap_base)
+{
+	*kbd = (bd_t *)lmb_alloc_base(lmb, sizeof(bd_t), 0xf,
+				      CFG_BOOTMAPSZ + bootmap_base);
+	if (*kbd == NULL)
+		return -1;
+
+	**kbd = *(gd->bd);
+
+	debug ("## kernel board info at 0x%08lx\n", (ulong)*kbd);
+
+#if defined(DEBUG) && defined(CONFIG_CMD_BDI)
+	do_bdinfo(NULL, 0, 0, NULL);
+#endif
+
+	return 0;
+}
+#endif /* CONFIG_PPC || CONFIG_M68K */
+#endif /* !USE_HOSTCC */
+
+#if defined(CONFIG_FIT)
+/*****************************************************************************/
+/* New uImage format routines */
+/*****************************************************************************/
+#ifndef USE_HOSTCC
+static int fit_parse_spec (const char *spec, char sepc, ulong addr_curr,
+		ulong *addr, const char **name)
+{
+	const char *sep;
+
+	*addr = addr_curr;
+	*name = NULL;
+
+	sep = strchr (spec, sepc);
+	if (sep) {
+		if (sep - spec > 0)
+			*addr = simple_strtoul (spec, NULL, 16);
+
+		*name = sep + 1;
+		return 1;
+	}
+
+	return 0;
+}
+
+/**
+ * fit_parse_conf - parse FIT configuration spec
+ * @spec: input string, containing configuration spec
+ * @add_curr: current image address (to be used as a possible default)
+ * @addr: pointer to a ulong variable, will hold FIT image address of a given
+ * configuration
+ * @conf_name double pointer to a char, will hold pointer to a configuration
+ * unit name
+ *
+ * fit_parse_conf() expects configuration spec in the for of [<addr>]#<conf>,
+ * where <addr> is a FIT image address that contains configuration
+ * with a <conf> unit name.
+ *
+ * Address part is optional, and if omitted default add_curr will
+ * be used instead.
+ *
+ * returns:
+ *     1 if spec is a valid configuration string,
+ *     addr and conf_name are set accordingly
+ *     0 otherwise
+ */
+inline int fit_parse_conf (const char *spec, ulong addr_curr,
+		ulong *addr, const char **conf_name)
+{
+	return fit_parse_spec (spec, '#', addr_curr, addr, conf_name);
+}
+
+/**
+ * fit_parse_subimage - parse FIT subimage spec
+ * @spec: input string, containing subimage spec
+ * @add_curr: current image address (to be used as a possible default)
+ * @addr: pointer to a ulong variable, will hold FIT image address of a given
+ * subimage
+ * @image_name: double pointer to a char, will hold pointer to a subimage name
+ *
+ * fit_parse_subimage() expects subimage spec in the for of
+ * [<addr>]:<subimage>, where <addr> is a FIT image address that contains
+ * subimage with a <subimg> unit name.
+ *
+ * Address part is optional, and if omitted default add_curr will
+ * be used instead.
+ *
+ * returns:
+ *     1 if spec is a valid subimage string,
+ *     addr and image_name are set accordingly
+ *     0 otherwise
+ */
+inline int fit_parse_subimage (const char *spec, ulong addr_curr,
+		ulong *addr, const char **image_name)
+{
+	return fit_parse_spec (spec, ':', addr_curr, addr, image_name);
+}
+#endif /* !USE_HOSTCC */
+
+static void fit_get_debug (const void *fit, int noffset,
+		char *prop_name, int err)
+{
+	debug ("Can't get '%s' property from FIT 0x%08lx, "
+		"node: offset %d, name %s (%s)\n",
+		prop_name, (ulong)fit, noffset,
+		fit_get_name (fit, noffset, NULL),
+		fdt_strerror (err));
+}
+
+/**
+ * __fit_print_contents - prints out the contents of the FIT format image
+ * @fit: pointer to the FIT format image header
+ * @p: pointer to prefix string
+ *
+ * __fit_print_contents() formats a multi line FIT image contents description.
+ * The routine prints out FIT image properties (root node level) follwed by
+ * the details of each component image.
+ *
+ * returns:
+ *     no returned results
+ */
+static void __fit_print_contents (const void *fit, const char *p)
+{
+	char *desc;
+	char *uname;
+	int images_noffset;
+	int confs_noffset;
+	int noffset;
+	int ndepth;
+	int count = 0;
+	int ret;
+#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
+	time_t timestamp;
+#endif
+
+	/* Root node properties */
+	ret = fit_get_desc (fit, 0, &desc);
+	printf ("%sFIT description: ", p);
+	if (ret)
+		printf ("unavailable\n");
+	else
+		printf ("%s\n", desc);
+
+#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
+	ret = fit_get_timestamp (fit, 0, &timestamp);
+	printf ("%sCreated:         ", p);
+	if (ret)
+		printf ("unavailable\n");
+	else
+		genimg_print_time (timestamp);
+#endif
+
+	/* Find images parent node offset */
+	images_noffset = fdt_path_offset (fit, FIT_IMAGES_PATH);
+	if (images_noffset < 0) {
+		printf ("Can't find images parent node '%s' (%s)\n",
+			FIT_IMAGES_PATH, fdt_strerror (images_noffset));
+		return;
+	}
+
+	/* Process its subnodes, print out component images details */
+	for (ndepth = 0, count = 0, noffset = fdt_next_node (fit, images_noffset, &ndepth);
+	     (noffset >= 0) && (ndepth > 0);
+	     noffset = fdt_next_node (fit, noffset, &ndepth)) {
+		if (ndepth == 1) {
+			/*
+			 * Direct child node of the images parent node,
+			 * i.e. component image node.
+			 */
+			printf ("%s Image %u (%s)\n", p, count++,
+					fit_get_name(fit, noffset, NULL));
+
+			fit_image_print (fit, noffset, p);
+		}
+	}
+
+	/* Find configurations parent node offset */
+	confs_noffset = fdt_path_offset (fit, FIT_CONFS_PATH);
+	if (confs_noffset < 0) {
+		debug ("Can't get configurations parent node '%s' (%s)\n",
+			FIT_CONFS_PATH, fdt_strerror (confs_noffset));
+		return;
+	}
+
+	/* get default configuration unit name from default property */
+	uname = (char *)fdt_getprop (fit, noffset, FIT_DEFAULT_PROP, NULL);
+	if (uname)
+		printf ("%s Default Configuration: '%s'\n", p, uname);
+
+	/* Process its subnodes, print out configurations details */
+	for (ndepth = 0, count = 0, noffset = fdt_next_node (fit, confs_noffset, &ndepth);
+	     (noffset >= 0) && (ndepth > 0);
+	     noffset = fdt_next_node (fit, noffset, &ndepth)) {
+		if (ndepth == 1) {
+			/*
+			 * Direct child node of the configurations parent node,
+			 * i.e. configuration node.
+			 */
+			printf ("%s Configuration %u (%s)\n", p, count++,
+					fit_get_name(fit, noffset, NULL));
+
+			fit_conf_print (fit, noffset, p);
+		}
+	}
+}
+
+inline void fit_print_contents (const void *fit)
+{
+	__fit_print_contents (fit, "   ");
+}
+
+inline void fit_print_contents_noindent (const void *fit)
+{
+	__fit_print_contents (fit, "");
+}
+
+/**
+ * fit_image_print - prints out the FIT component image details
+ * @fit: pointer to the FIT format image header
+ * @image_noffset: offset of the component image node
+ * @p: pointer to prefix string
+ *
+ * fit_image_print() lists all mandatory properies for the processed component
+ * image. If present, hash nodes are printed out as well.
+ *
+ * returns:
+ *     no returned results
+ */
+void fit_image_print (const void *fit, int image_noffset, const char *p)
+{
+	char *desc;
+	uint8_t type, arch, os, comp;
+	size_t size;
+	ulong load, entry;
+	const void *data;
+	int noffset;
+	int ndepth;
+	int ret;
+
+	/* Mandatory properties */
+	ret = fit_get_desc (fit, image_noffset, &desc);
+	printf ("%s  Description:  ", p);
+	if (ret)
+		printf ("unavailable\n");
+	else
+		printf ("%s\n", desc);
+
+	fit_image_get_type (fit, image_noffset, &type);
+	printf ("%s  Type:         %s\n", p, genimg_get_type_name (type));
+
+	fit_image_get_comp (fit, image_noffset, &comp);
+	printf ("%s  Compression:  %s\n", p, genimg_get_comp_name (comp));
+
+	ret = fit_image_get_data (fit, image_noffset, &data, &size);
+
+#ifndef USE_HOSTCC
+	printf ("%s  Data Start:   ", p);
+	if (ret)
+		printf ("unavailable\n");
+	else
+		printf ("0x%08lx\n", (ulong)data);
+#endif
+
+	printf ("%s  Data Size:    ", p);
+	if (ret)
+		printf ("unavailable\n");
+	else
+		genimg_print_size (size);
+
+	/* Remaining, type dependent properties */
+	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
+	    (type == IH_TYPE_RAMDISK) || (type == IH_TYPE_FIRMWARE) ||
+	    (type == IH_TYPE_FLATDT)) {
+		fit_image_get_arch (fit, image_noffset, &arch);
+		printf ("%s  Architecture: %s\n", p, genimg_get_arch_name (arch));
+	}
+
+	if (type == IH_TYPE_KERNEL) {
+		fit_image_get_os (fit, image_noffset, &os);
+		printf ("%s  OS:           %s\n", p, genimg_get_os_name (os));
+	}
+
+	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE)) {
+		ret = fit_image_get_load (fit, image_noffset, &load);
+		printf ("%s  Load Address: ", p);
+		if (ret)
+			printf ("unavailable\n");
+		else
+			printf ("0x%08lx\n", load);
+
+		fit_image_get_entry (fit, image_noffset, &entry);
+		printf ("%s  Entry Point:  ", p);
+		if (ret)
+			printf ("unavailable\n");
+		else
+			printf ("0x%08lx\n", entry);
+	}
+
+	/* Process all hash subnodes of the component image node */
+	for (ndepth = 0, noffset = fdt_next_node (fit, image_noffset, &ndepth);
+	     (noffset >= 0) && (ndepth > 0);
+	     noffset = fdt_next_node (fit, noffset, &ndepth)) {
+		if (ndepth == 1) {
+			/* Direct child node of the component image node */
+			fit_image_print_hash (fit, noffset, p);
+		}
+	}
+}
+
+/**
+ * fit_image_print_hash - prints out the hash node details
+ * @fit: pointer to the FIT format image header
+ * @noffset: offset of the hash node
+ * @p: pointer to prefix string
+ *
+ * fit_image_print_hash() lists properies for the processed hash node
+ *
+ * returns:
+ *     no returned results
+ */
+void fit_image_print_hash (const void *fit, int noffset, const char *p)
+{
+	char *algo;
+	uint8_t *value;
+	int value_len;
+	int i, ret;
+
+	/*
+	 * Check subnode name, must be equal to "hash".
+	 * Multiple hash nodes require unique unit node
+	 * names, e.g. hash@1, hash@2, etc.
+	 */
+	if (strncmp (fit_get_name(fit, noffset, NULL),
+			FIT_HASH_NODENAME,
+			strlen(FIT_HASH_NODENAME)) != 0)
+		return;
+
+	debug ("%s  Hash node:    '%s'\n", p,
+			fit_get_name (fit, noffset, NULL));
+
+	printf ("%s  Hash algo:    ", p);
+	if (fit_image_hash_get_algo (fit, noffset, &algo)) {
+		printf ("invalid/unsupported\n");
+		return;
+	}
+	printf ("%s\n", algo);
+
+	ret = fit_image_hash_get_value (fit, noffset, &value,
+					&value_len);
+	printf ("%s  Hash value:   ", p);
+	if (ret) {
+		printf ("unavailable\n");
+	} else {
+		for (i = 0; i < value_len; i++)
+			printf ("%02x", value[i]);
+		printf ("\n");
+	}
+
+	debug  ("%s  Hash len:     %d\n", p, value_len);
+}
+
+/**
+ * fit_get_desc - get node description property
+ * @fit: pointer to the FIT format image header
+ * @noffset: node offset
+ * @desc: double pointer to the char, will hold pointer to the descrption
+ *
+ * fit_get_desc() reads description property from a given node, if
+ * description is found pointer to it is returened in third call argument.
+ *
+ * returns:
+ *     0, on success
+ *     -1, on failure
+ */
+int fit_get_desc (const void *fit, int noffset, char **desc)
+{
+	int len;
+
+	*desc = (char *)fdt_getprop (fit, noffset, FIT_DESC_PROP, &len);
+	if (*desc == NULL) {
+		fit_get_debug (fit, noffset, FIT_DESC_PROP, len);
+		return -1;
+	}
+
+	return 0;
+}
+
+/**
+ * fit_get_timestamp - get node timestamp property
+ * @fit: pointer to the FIT format image header
+ * @noffset: node offset
+ * @timestamp: pointer to the time_t, will hold read timestamp
+ *
+ * fit_get_timestamp() reads timestamp poperty from given node, if timestamp
+ * is found and has a correct size its value is retured in third call
+ * argument.
+ *
+ * returns:
+ *     0, on success
+ *     -1, on property read failure
+ *     -2, on wrong timestamp size
+ */
+int fit_get_timestamp (const void *fit, int noffset, time_t *timestamp)
+{
+	int len;
+	const void *data;
+
+	data = fdt_getprop (fit, noffset, FIT_TIMESTAMP_PROP, &len);
+	if (data == NULL) {
+		fit_get_debug (fit, noffset, FIT_TIMESTAMP_PROP, len);
+		return -1;
+	}
+	if (len != sizeof (uint32_t)) {
+		debug ("FIT timestamp with incorrect size of (%u)\n", len);
+		return -2;
+	}
+
+	*timestamp = uimage_to_cpu (*((uint32_t *)data));
+	return 0;
+}
+
+/**
+ * fit_image_get_node - get node offset for component image of a given unit name
+ * @fit: pointer to the FIT format image header
+ * @image_uname: component image node unit name
+ *
+ * fit_image_get_node() finds a component image (withing the '/images'
+ * node) of a provided unit name. If image is found its node offset is
+ * returned to the caller.
+ *
+ * returns:
+ *     image node offset when found (>=0)
+ *     negative number on failure (FDT_ERR_* code)
+ */
+int fit_image_get_node (const void *fit, const char *image_uname)
+{
+	int noffset, images_noffset;
+
+	images_noffset = fdt_path_offset (fit, FIT_IMAGES_PATH);
+	if (images_noffset < 0) {
+		debug ("Can't find images parent node '%s' (%s)\n",
+			FIT_IMAGES_PATH, fdt_strerror (images_noffset));
+		return images_noffset;
+	}
+
+	noffset = fdt_subnode_offset (fit, images_noffset, image_uname);
+	if (noffset < 0) {
+		debug ("Can't get node offset for image unit name: '%s' (%s)\n",
+			image_uname, fdt_strerror (noffset));
+	}
+
+	return noffset;
+}
+
+/**
+ * fit_image_get_os - get os id for a given component image node
+ * @fit: pointer to the FIT format image header
+ * @noffset: component image node offset
+ * @os: pointer to the uint8_t, will hold os numeric id
+ *
+ * fit_image_get_os() finds os property in a given component image node.
+ * If the property is found, its (string) value is translated to the numeric
+ * id which is returned to the caller.
+ *
+ * returns:
+ *     0, on success
+ *     -1, on failure
+ */
+int fit_image_get_os (const void *fit, int noffset, uint8_t *os)
+{
+	int len;
+	const void *data;
+
+	/* Get OS name from property data */
+	data = fdt_getprop (fit, noffset, FIT_OS_PROP, &len);
+	if (data == NULL) {
+		fit_get_debug (fit, noffset, FIT_OS_PROP, len);
+		*os = -1;
+		return -1;
+	}
+
+	/* Translate OS name to id */
+	*os = genimg_get_os_id (data);
+	return 0;
+}
+
+/**
+ * fit_image_get_arch - get arch id for a given component image node
+ * @fit: pointer to the FIT format image header
+ * @noffset: component image node offset
+ * @arch: pointer to the uint8_t, will hold arch numeric id
+ *
+ * fit_image_get_arch() finds arch property in a given component image node.
+ * If the property is found, its (string) value is translated to the numeric
+ * id which is returned to the caller.
+ *
+ * returns:
+ *     0, on success
+ *     -1, on failure
+ */
+int fit_image_get_arch (const void *fit, int noffset, uint8_t *arch)
+{
+	int len;
+	const void *data;
+
+	/* Get architecture name from property data */
+	data = fdt_getprop (fit, noffset, FIT_ARCH_PROP, &len);
+	if (data == NULL) {
+		fit_get_debug (fit, noffset, FIT_ARCH_PROP, len);
+		*arch = -1;
+		return -1;
+	}
+
+	/* Translate architecture name to id */
+	*arch = genimg_get_arch_id (data);
+	return 0;
+}
+
+/**
+ * fit_image_get_type - get type id for a given component image node
+ * @fit: pointer to the FIT format image header
+ * @noffset: component image node offset
+ * @type: pointer to the uint8_t, will hold type numeric id
+ *
+ * fit_image_get_type() finds type property in a given component image node.
+ * If the property is found, its (string) value is translated to the numeric
+ * id which is returned to the caller.
+ *
+ * returns:
+ *     0, on success
+ *     -1, on failure
+ */
+int fit_image_get_type (const void *fit, int noffset, uint8_t *type)
+{
+	int len;
+	const void *data;
+
+	/* Get image type name from property data */
+	data = fdt_getprop (fit, noffset, FIT_TYPE_PROP, &len);
+	if (data == NULL) {
+		fit_get_debug (fit, noffset, FIT_TYPE_PROP, len);
+		*type = -1;
+		return -1;
+	}
+
+	/* Translate image type name to id */
+	*type = genimg_get_type_id (data);
+	return 0;
+}
+
+/**
+ * fit_image_get_comp - get comp id for a given component image node
+ * @fit: pointer to the FIT format image header
+ * @noffset: component image node offset
+ * @comp: pointer to the uint8_t, will hold comp numeric id
+ *
+ * fit_image_get_comp() finds comp property in a given component image node.
+ * If the property is found, its (string) value is translated to the numeric
+ * id which is returned to the caller.
+ *
+ * returns:
+ *     0, on success
+ *     -1, on failure
+ */
+int fit_image_get_comp (const void *fit, int noffset, uint8_t *comp)
+{
+	int len;
+	const void *data;
+
+	/* Get compression name from property data */
+	data = fdt_getprop (fit, noffset, FIT_COMP_PROP, &len);
+	if (data == NULL) {
+		fit_get_debug (fit, noffset, FIT_COMP_PROP, len);
+		*comp = -1;
+		return -1;
+	}
+
+	/* Translate compression name to id */
+	*comp = genimg_get_comp_id (data);
+	return 0;
+}
+
+/**
+ * fit_image_get_load - get load address property for a given component image node
+ * @fit: pointer to the FIT format image header
+ * @noffset: component image node offset
+ * @load: pointer to the uint32_t, will hold load address
+ *
+ * fit_image_get_load() finds load address property in a given component image node.
+ * If the property is found, its value is returned to the caller.
+ *
+ * returns:
+ *     0, on success
+ *     -1, on failure
+ */
+int fit_image_get_load (const void *fit, int noffset, ulong *load)
+{
+	int len;
+	const uint32_t *data;
+
+	data = fdt_getprop (fit, noffset, FIT_LOAD_PROP, &len);
+	if (data == NULL) {
+		fit_get_debug (fit, noffset, FIT_LOAD_PROP, len);
+		return -1;
+	}
+
+	*load = uimage_to_cpu (*data);
+	return 0;
+}
+
+/**
+ * fit_image_get_entry - get entry point address property for a given component image node
+ * @fit: pointer to the FIT format image header
+ * @noffset: component image node offset
+ * @entry: pointer to the uint32_t, will hold entry point address
+ *
+ * fit_image_get_entry() finds entry point address property in a given component image node.
+ * If the property is found, its value is returned to the caller.
+ *
+ * returns:
+ *     0, on success
+ *     -1, on failure
+ */
+int fit_image_get_entry (const void *fit, int noffset, ulong *entry)
+{
+	int len;
+	const uint32_t *data;
+
+	data = fdt_getprop (fit, noffset, FIT_ENTRY_PROP, &len);
+	if (data == NULL) {
+		fit_get_debug (fit, noffset, FIT_ENTRY_PROP, len);
+		return -1;
+	}
+
+	*entry = uimage_to_cpu (*data);
+	return 0;
+}
+
+/**
+ * fit_image_get_data - get data property and its size for a given component image node
+ * @fit: pointer to the FIT format image header
+ * @noffset: component image node offset
+ * @data: double pointer to void, will hold data property's data address
+ * @size: pointer to size_t, will hold data property's data size
+ *
+ * fit_image_get_data() finds data property in a given component image node.
+ * If the property is found its data start address and size are returned to
+ * the caller.
+ *
+ * returns:
+ *     0, on success
+ *     -1, on failure
+ */
+int fit_image_get_data (const void *fit, int noffset,
+		const void **data, size_t *size)
+{
+	int len;
+
+	*data = fdt_getprop (fit, noffset, FIT_DATA_PROP, &len);
+	if (*data == NULL) {
+		fit_get_debug (fit, noffset, FIT_DATA_PROP, len);
+		*size = 0;
+		return -1;
+	}
+
+	*size = len;
+	return 0;
+}
+
+/**
+ * fit_image_hash_get_algo - get hash algorithm name
+ * @fit: pointer to the FIT format image header
+ * @noffset: hash node offset
+ * @algo: double pointer to char, will hold pointer to the algorithm name
+ *
+ * fit_image_hash_get_algo() finds hash algorithm property in a given hash node.
+ * If the property is found its data start address is returned to the caller.
+ *
+ * returns:
+ *     0, on success
+ *     -1, on failure
+ */
+int fit_image_hash_get_algo (const void *fit, int noffset, char **algo)
+{
+	int len;
+
+	*algo = (char *)fdt_getprop (fit, noffset, FIT_ALGO_PROP, &len);
+	if (*algo == NULL) {
+		fit_get_debug (fit, noffset, FIT_ALGO_PROP, len);
+		return -1;
+	}
+
+	return 0;
+}
+
+/**
+ * fit_image_hash_get_value - get hash value and length
+ * @fit: pointer to the FIT format image header
+ * @noffset: hash node offset
+ * @value: double pointer to uint8_t, will hold address of a hash value data
+ * @value_len: pointer to an int, will hold hash data length
+ *
+ * fit_image_hash_get_value() finds hash value property in a given hash node.
+ * If the property is found its data start address and size are returned to
+ * the caller.
+ *
+ * returns:
+ *     0, on success
+ *     -1, on failure
+ */
+int fit_image_hash_get_value (const void *fit, int noffset, uint8_t **value,
+				int *value_len)
+{
+	int len;
+
+	*value = (uint8_t *)fdt_getprop (fit, noffset, FIT_VALUE_PROP, &len);
+	if (*value == NULL) {
+		fit_get_debug (fit, noffset, FIT_VALUE_PROP, len);
+		*value_len = 0;
+		return -1;
+	}
+
+	*value_len = len;
+	return 0;
+}
+
+/**
+ * fit_set_timestamp - set node timestamp property
+ * @fit: pointer to the FIT format image header
+ * @noffset: node offset
+ * @timestamp: timestamp value to be set
+ *
+ * fit_set_timestamp() attempts to set timestamp property in the requested
+ * node and returns operation status to the caller.
+ *
+ * returns:
+ *     0, on success
+ *     -1, on property read failure
+ */
+int fit_set_timestamp (void *fit, int noffset, time_t timestamp)
+{
+	uint32_t t;
+	int ret;
+
+	t = cpu_to_uimage (timestamp);
+	ret = fdt_setprop (fit, noffset, FIT_TIMESTAMP_PROP, &t,
+				sizeof (uint32_t));
+	if (ret) {
+		printf ("Can't set '%s' property for '%s' node (%s)\n",
+			FIT_TIMESTAMP_PROP, fit_get_name (fit, noffset, NULL),
+			fdt_strerror (ret));
+		return -1;
+	}
+
+	return 0;
+}
+
+/**
+ * calculate_hash - calculate and return hash for provided input data
+ * @data: pointer to the input data
+ * @data_len: data length
+ * @algo: requested hash algorithm
+ * @value: pointer to the char, will hold hash value data (caller must
+ * allocate enough free space)
+ * value_len: length of the calculated hash
+ *
+ * calculate_hash() computes input data hash according to the requested algorithm.
+ * Resulting hash value is placed in caller provided 'value' buffer, length
+ * of the calculated hash is returned via value_len pointer argument.
+ *
+ * returns:
+ *     0, on success
+ *    -1, when algo is unsupported
+ */
+static int calculate_hash (const void *data, int data_len, const char *algo,
+			uint8_t *value, int *value_len)
+{
+	if (strcmp (algo, "crc32") == 0 ) {
+		*((uint32_t *)value) = crc32 (0, data, data_len);
+		*((uint32_t *)value) = cpu_to_uimage (*((uint32_t *)value));
+		*value_len = 4;
+	} else if (strcmp (algo, "sha1") == 0 ) {
+		sha1_csum ((unsigned char *) data, data_len,
+				(unsigned char *) value);
+		*value_len = 20;
+	} else if (strcmp (algo, "md5") == 0 ) {
+		md5 ((unsigned char *)data, data_len, value);
+		*value_len = 16;
+	} else {
+		debug ("Unsupported hash alogrithm\n");
+		return -1;
+	}
+	return 0;
+}
+
+#ifdef USE_HOSTCC
+/**
+ * fit_set_hashes - process FIT component image nodes and calculate hashes
+ * @fit: pointer to the FIT format image header
+ *
+ * fit_set_hashes() adds hash values for all component images in the FIT blob.
+ * Hashes are calculated for all component images which have hash subnodes
+ * with algorithm property set to one of the supported hash algorithms.
+ *
+ * returns
+ *     0, on success
+ *     libfdt error code, on failure
+ */
+int fit_set_hashes (void *fit)
+{
+	int images_noffset;
+	int noffset;
+	int ndepth;
+	int ret;
+
+	/* Find images parent node offset */
+	images_noffset = fdt_path_offset (fit, FIT_IMAGES_PATH);
+	if (images_noffset < 0) {
+		printf ("Can't find images parent node '%s' (%s)\n",
+			FIT_IMAGES_PATH, fdt_strerror (images_noffset));
+		return images_noffset;
+	}
+
+	/* Process its subnodes, print out component images details */
+	for (ndepth = 0, noffset = fdt_next_node (fit, images_noffset, &ndepth);
+	     (noffset >= 0) && (ndepth > 0);
+	     noffset = fdt_next_node (fit, noffset, &ndepth)) {
+		if (ndepth == 1) {
+			/*
+			 * Direct child node of the images parent node,
+			 * i.e. component image node.
+			 */
+			ret = fit_image_set_hashes (fit, noffset);
+			if (ret)
+				return ret;
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * fit_image_set_hashes - calculate/set hashes for given component image node
+ * @fit: pointer to the FIT format image header
+ * @image_noffset: requested component image node
+ *
+ * fit_image_set_hashes() adds hash values for an component image node. All
+ * existing hash subnodes are checked, if algorithm property is set to one of
+ * the supported hash algorithms, hash value is computed and corresponding
+ * hash node property is set, for example:
+ *
+ * Input component image node structure:
+ *
+ * o image@1 (at image_noffset)
+ *   | - data = [binary data]
+ *   o hash@1
+ *     |- algo = "sha1"
+ *
+ * Output component image node structure:
+ *
+ * o image@1 (at image_noffset)
+ *   | - data = [binary data]
+ *   o hash@1
+ *     |- algo = "sha1"
+ *     |- value = sha1(data)
+ *
+ * returns:
+ *     0 on sucess
+ *    <0 on failure
+ */
+int fit_image_set_hashes (void *fit, int image_noffset)
+{
+	const void *data;
+	size_t size;
+	char *algo;
+	uint8_t value[FIT_MAX_HASH_LEN];
+	int value_len;
+	int noffset;
+	int ndepth;
+
+	/* Get image data and data length */
+	if (fit_image_get_data (fit, image_noffset, &data, &size)) {
+		printf ("Can't get image data/size\n");
+		return -1;
+	}
+
+	/* Process all hash subnodes of the component image node */
+	for (ndepth = 0, noffset = fdt_next_node (fit, image_noffset, &ndepth);
+	     (noffset >= 0) && (ndepth > 0);
+	     noffset = fdt_next_node (fit, noffset, &ndepth)) {
+		if (ndepth == 1) {
+			/* Direct child node of the component image node */
+
+			/*
+			 * Check subnode name, must be equal to "hash".
+			 * Multiple hash nodes require unique unit node
+			 * names, e.g. hash@1, hash@2, etc.
+			 */
+			if (strncmp (fit_get_name(fit, noffset, NULL),
+						FIT_HASH_NODENAME,
+						strlen(FIT_HASH_NODENAME)) != 0) {
+				/* Not a hash subnode, skip it */
+				continue;
+			}
+
+			if (fit_image_hash_get_algo (fit, noffset, &algo)) {
+				printf ("Can't get hash algo property for "
+					"'%s' hash node in '%s' image node\n",
+					fit_get_name (fit, noffset, NULL),
+					fit_get_name (fit, image_noffset, NULL));
+				return -1;
+			}
+
+			if (calculate_hash (data, size, algo, value, &value_len)) {
+				printf ("Unsupported hash algorithm (%s) for "
+					"'%s' hash node in '%s' image node\n",
+					algo, fit_get_name (fit, noffset, NULL),
+					fit_get_name (fit, image_noffset, NULL));
+				return -1;
+			}
+
+			if (fit_image_hash_set_value (fit, noffset, value,
+							value_len)) {
+				printf ("Can't set hash value for "
+					"'%s' hash node in '%s' image node\n",
+					fit_get_name (fit, noffset, NULL),
+					fit_get_name (fit, image_noffset, NULL));
+				return -1;
+			}
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * fit_image_hash_set_value - set hash value in requested has node
+ * @fit: pointer to the FIT format image header
+ * @noffset: hash node offset
+ * @value: hash value to be set
+ * @value_len: hash value length
+ *
+ * fit_image_hash_set_value() attempts to set hash value in a node at offset
+ * given and returns operation status to the caller.
+ *
+ * returns
+ *     0, on success
+ *     -1, on failure
+ */
+int fit_image_hash_set_value (void *fit, int noffset, uint8_t *value,
+				int value_len)
+{
+	int ret;
+
+	ret = fdt_setprop (fit, noffset, FIT_VALUE_PROP, value, value_len);
+	if (ret) {
+		printf ("Can't set hash '%s' property for '%s' node (%s)\n",
+			FIT_VALUE_PROP, fit_get_name (fit, noffset, NULL),
+			fdt_strerror (ret));
+		return -1;
+	}
+
+	return 0;
+}
+#endif /* USE_HOSTCC */
+
+/**
+ * fit_image_check_hashes - verify data intergity
+ * @fit: pointer to the FIT format image header
+ * @image_noffset: component image node offset
+ *
+ * fit_image_check_hashes() goes over component image hash nodes,
+ * re-calculates each data hash and compares with the value stored in hash
+ * node.
+ *
+ * returns:
+ *     1, if all hashes are valid
+ *     0, otherwise (or on error)
+ */
+int fit_image_check_hashes (const void *fit, int image_noffset)
+{
+	const void	*data;
+	size_t		size;
+	char		*algo;
+	uint8_t		*fit_value;
+	int		fit_value_len;
+	uint8_t		value[FIT_MAX_HASH_LEN];
+	int		value_len;
+	int		noffset;
+	int		ndepth;
+	char		*err_msg = "";
+
+	/* Get image data and data length */
+	if (fit_image_get_data (fit, image_noffset, &data, &size)) {
+		printf ("Can't get image data/size\n");
+		return 0;
+	}
+
+	/* Process all hash subnodes of the component image node */
+	for (ndepth = 0, noffset = fdt_next_node (fit, image_noffset, &ndepth);
+	     (noffset >= 0) && (ndepth > 0);
+	     noffset = fdt_next_node (fit, noffset, &ndepth)) {
+		if (ndepth == 1) {
+			/* Direct child node of the component image node */
+
+			/*
+			 * Check subnode name, must be equal to "hash".
+			 * Multiple hash nodes require unique unit node
+			 * names, e.g. hash@1, hash@2, etc.
+			 */
+			if (strncmp (fit_get_name(fit, noffset, NULL),
+					FIT_HASH_NODENAME,
+					strlen(FIT_HASH_NODENAME)) != 0)
+				continue;
+
+			if (fit_image_hash_get_algo (fit, noffset, &algo)) {
+				err_msg = "Can't get hash algo property";
+				goto error;
+			}
+			printf ("%s", algo);
+
+			if (fit_image_hash_get_value (fit, noffset, &fit_value,
+							&fit_value_len)) {
+				err_msg = "Can't get hash value property";
+				goto error;
+			}
+
+			if (calculate_hash (data, size, algo, value, &value_len)) {
+				err_msg = "Unsupported hash algorithm";
+				goto error;
+			}
+
+			if (value_len != fit_value_len) {
+				err_msg = "Bad hash value len";
+				goto error;
+			} else if (memcmp (value, fit_value, value_len) != 0) {
+				err_msg = "Bad hash value";
+				goto error;
+			}
+			printf ("+ ");
+		}
+	}
+
+	return 1;
+
+error:
+	printf ("%s for '%s' hash node in '%s' image node\n",
+			err_msg, fit_get_name (fit, noffset, NULL),
+			fit_get_name (fit, image_noffset, NULL));
+	return 0;
+}
+
+/**
+ * fit_image_check_os - check whether image node is of a given os type
+ * @fit: pointer to the FIT format image header
+ * @noffset: component image node offset
+ * @os: requested image os
+ *
+ * fit_image_check_os() reads image os property and compares its numeric
+ * id with the requested os. Comparison result is returned to the caller.
+ *
+ * returns:
+ *     1 if image is of given os type
+ *     0 otherwise (or on error)
+ */
+int fit_image_check_os (const void *fit, int noffset, uint8_t os)
+{
+	uint8_t image_os;
+
+	if (fit_image_get_os (fit, noffset, &image_os))
+		return 0;
+	return (os == image_os);
+}
+
+/**
+ * fit_image_check_arch - check whether image node is of a given arch
+ * @fit: pointer to the FIT format image header
+ * @noffset: component image node offset
+ * @arch: requested imagearch
+ *
+ * fit_image_check_arch() reads image arch property and compares its numeric
+ * id with the requested arch. Comparison result is returned to the caller.
+ *
+ * returns:
+ *     1 if image is of given arch
+ *     0 otherwise (or on error)
+ */
+int fit_image_check_arch (const void *fit, int noffset, uint8_t arch)
+{
+	uint8_t image_arch;
+
+	if (fit_image_get_arch (fit, noffset, &image_arch))
+		return 0;
+	return (arch == image_arch);
+}
+
+/**
+ * fit_image_check_type - check whether image node is of a given type
+ * @fit: pointer to the FIT format image header
+ * @noffset: component image node offset
+ * @type: requested image type
+ *
+ * fit_image_check_type() reads image type property and compares its numeric
+ * id with the requested type. Comparison result is returned to the caller.
+ *
+ * returns:
+ *     1 if image is of given type
+ *     0 otherwise (or on error)
+ */
+int fit_image_check_type (const void *fit, int noffset, uint8_t type)
+{
+	uint8_t image_type;
+
+	if (fit_image_get_type (fit, noffset, &image_type))
+		return 0;
+	return (type == image_type);
+}
+
+/**
+ * fit_image_check_comp - check whether image node uses given compression
+ * @fit: pointer to the FIT format image header
+ * @noffset: component image node offset
+ * @comp: requested image compression type
+ *
+ * fit_image_check_comp() reads image compression property and compares its
+ * numeric id with the requested compression type. Comparison result is
+ * returned to the caller.
+ *
+ * returns:
+ *     1 if image uses requested compression
+ *     0 otherwise (or on error)
+ */
+int fit_image_check_comp (const void *fit, int noffset, uint8_t comp)
+{
+	uint8_t image_comp;
+
+	if (fit_image_get_comp (fit, noffset, &image_comp))
+		return 0;
+	return (comp == image_comp);
+}
+
+/**
+ * fit_check_format - sanity check FIT image format
+ * @fit: pointer to the FIT format image header
+ *
+ * fit_check_format() runs a basic sanity FIT image verification.
+ * Routine checks for mandatory properties, nodes, etc.
+ *
+ * returns:
+ *     1, on success
+ *     0, on failure
+ */
+int fit_check_format (const void *fit)
+{
+	/* mandatory / node 'description' property */
+	if (fdt_getprop (fit, 0, FIT_DESC_PROP, NULL) == NULL) {
+		debug ("Wrong FIT format: no description\n");
+		return 0;
+	}
+
+#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
+	/* mandatory / node 'timestamp' property */
+	if (fdt_getprop (fit, 0, FIT_TIMESTAMP_PROP, NULL) == NULL) {
+		debug ("Wrong FIT format: no description\n");
+		return 0;
+	}
+#endif
+
+	/* mandatory subimages parent '/images' node */
+	if (fdt_path_offset (fit, FIT_IMAGES_PATH) < 0) {
+		debug ("Wrong FIT format: no images parent node\n");
+		return 0;
+	}
+
+	return 1;
+}
+
+/**
+ * fit_conf_get_node - get node offset for configuration of a given unit name
+ * @fit: pointer to the FIT format image header
+ * @conf_uname: configuration node unit name
+ *
+ * fit_conf_get_node() finds a configuration (withing the '/configurations'
+ * parant node) of a provided unit name. If configuration is found its node offset
+ * is returned to the caller.
+ *
+ * When NULL is provided in second argument fit_conf_get_node() will search
+ * for a default configuration node instead. Default configuration node unit name
+ * is retrived from FIT_DEFAULT_PROP property of the '/configurations' node.
+ *
+ * returns:
+ *     configuration node offset when found (>=0)
+ *     negative number on failure (FDT_ERR_* code)
+ */
+int fit_conf_get_node (const void *fit, const char *conf_uname)
+{
+	int noffset, confs_noffset;
+	int len;
+
+	confs_noffset = fdt_path_offset (fit, FIT_CONFS_PATH);
+	if (confs_noffset < 0) {
+		debug ("Can't find configurations parent node '%s' (%s)\n",
+			FIT_CONFS_PATH, fdt_strerror (confs_noffset));
+		return confs_noffset;
+	}
+
+	if (conf_uname == NULL) {
+		/* get configuration unit name from the default property */
+		debug ("No configuration specified, trying default...\n");
+		conf_uname = (char *)fdt_getprop (fit, confs_noffset, FIT_DEFAULT_PROP, &len);
+		if (conf_uname == NULL) {
+			fit_get_debug (fit, confs_noffset, FIT_DEFAULT_PROP, len);
+			return len;
+		}
+		debug ("Found default configuration: '%s'\n", conf_uname);
+	}
+
+	noffset = fdt_subnode_offset (fit, confs_noffset, conf_uname);
+	if (noffset < 0) {
+		debug ("Can't get node offset for configuration unit name: '%s' (%s)\n",
+			conf_uname, fdt_strerror (noffset));
+	}
+
+	return noffset;
+}
+
+static int __fit_conf_get_prop_node (const void *fit, int noffset,
+		const char *prop_name)
+{
+	char *uname;
+	int len;
+
+	/* get kernel image unit name from configuration kernel property */
+	uname = (char *)fdt_getprop (fit, noffset, prop_name, &len);
+	if (uname == NULL)
+		return len;
+
+	return fit_image_get_node (fit, uname);
+}
+
+/**
+ * fit_conf_get_kernel_node - get kernel image node offset that corresponds to
+ * a given configuration
+ * @fit: pointer to the FIT format image header
+ * @noffset: configuration node offset
+ *
+ * fit_conf_get_kernel_node() retrives kernel image node unit name from
+ * configuration FIT_KERNEL_PROP property and translates it to the node
+ * offset.
+ *
+ * returns:
+ *     image node offset when found (>=0)
+ *     negative number on failure (FDT_ERR_* code)
+ */
+int fit_conf_get_kernel_node (const void *fit, int noffset)
+{
+	return __fit_conf_get_prop_node (fit, noffset, FIT_KERNEL_PROP);
+}
+
+/**
+ * fit_conf_get_ramdisk_node - get ramdisk image node offset that corresponds to
+ * a given configuration
+ * @fit: pointer to the FIT format image header
+ * @noffset: configuration node offset
+ *
+ * fit_conf_get_ramdisk_node() retrives ramdisk image node unit name from
+ * configuration FIT_KERNEL_PROP property and translates it to the node
+ * offset.
+ *
+ * returns:
+ *     image node offset when found (>=0)
+ *     negative number on failure (FDT_ERR_* code)
+ */
+int fit_conf_get_ramdisk_node (const void *fit, int noffset)
+{
+	return __fit_conf_get_prop_node (fit, noffset, FIT_RAMDISK_PROP);
+}
+
+/**
+ * fit_conf_get_fdt_node - get fdt image node offset that corresponds to
+ * a given configuration
+ * @fit: pointer to the FIT format image header
+ * @noffset: configuration node offset
+ *
+ * fit_conf_get_fdt_node() retrives fdt image node unit name from
+ * configuration FIT_KERNEL_PROP property and translates it to the node
+ * offset.
+ *
+ * returns:
+ *     image node offset when found (>=0)
+ *     negative number on failure (FDT_ERR_* code)
+ */
+int fit_conf_get_fdt_node (const void *fit, int noffset)
+{
+	return __fit_conf_get_prop_node (fit, noffset, FIT_FDT_PROP);
+}
+
+/**
+ * fit_conf_print - prints out the FIT configuration details
+ * @fit: pointer to the FIT format image header
+ * @noffset: offset of the configuration node
+ * @p: pointer to prefix string
+ *
+ * fit_conf_print() lists all mandatory properies for the processed
+ * configuration node.
+ *
+ * returns:
+ *     no returned results
+ */
+void fit_conf_print (const void *fit, int noffset, const char *p)
+{
+	char *desc;
+	char *uname;
+	int ret;
+
+	/* Mandatory properties */
+	ret = fit_get_desc (fit, noffset, &desc);
+	printf ("%s  Description:  ", p);
+	if (ret)
+		printf ("unavailable\n");
+	else
+		printf ("%s\n", desc);
+
+	uname = (char *)fdt_getprop (fit, noffset, FIT_KERNEL_PROP, NULL);
+	printf ("%s  Kernel:       ", p);
+	if (uname == NULL)
+		printf ("unavailable\n");
+	else
+		printf ("%s\n", uname);
+
+	/* Optional properties */
+	uname = (char *)fdt_getprop (fit, noffset, FIT_RAMDISK_PROP, NULL);
+	if (uname)
+		printf ("%s  Init Ramdisk: %s\n", p, uname);
+
+	uname = (char *)fdt_getprop (fit, noffset, FIT_FDT_PROP, NULL);
+	if (uname)
+		printf ("%s  FDT:          %s\n", p, uname);
+}
+
+/**
+ * fit_check_ramdisk - verify FIT format ramdisk subimage
+ * @fit_hdr: pointer to the FIT ramdisk header
+ * @rd_noffset: ramdisk subimage node offset within FIT image
+ * @arch: requested ramdisk image architecture type
+ * @verify: data CRC verification flag
+ *
+ * fit_check_ramdisk() verifies integrity of the ramdisk subimage and from
+ * specified FIT image.
+ *
+ * returns:
+ *     1, on success
+ *     0, on failure
+ */
+#ifndef USE_HOSTCC
+static int fit_check_ramdisk (const void *fit, int rd_noffset, uint8_t arch, int verify)
+{
+	fit_image_print (fit, rd_noffset, "   ");
+
+	if (verify) {
+		puts ("   Verifying Hash Integrity ... ");
+		if (!fit_image_check_hashes (fit, rd_noffset)) {
+			puts ("Bad Data Hash\n");
+			show_boot_progress (-125);
+			return 0;
+		}
+		puts ("OK\n");
+	}
+
+	show_boot_progress (126);
+	if (!fit_image_check_os (fit, rd_noffset, IH_OS_LINUX) ||
+	    !fit_image_check_arch (fit, rd_noffset, arch) ||
+	    !fit_image_check_type (fit, rd_noffset, IH_TYPE_RAMDISK)) {
+		printf ("No Linux %s Ramdisk Image\n",
+				genimg_get_arch_name(arch));
+		show_boot_progress (-126);
+		return 0;
+	}
+
+	show_boot_progress (127);
+	return 1;
+}
+#endif /* USE_HOSTCC */
+#endif /* CONFIG_FIT */