xref: /openbmc/u-boot/common/image.c (revision d7f71414)
1 /*
2  * (C) Copyright 2008 Semihalf
3  *
4  * (C) Copyright 2000-2006
5  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6  *
7  * See file CREDITS for list of people who contributed to this
8  * project.
9  *
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License as
12  * published by the Free Software Foundation; either version 2 of
13  * the License, or (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23  * MA 02111-1307 USA
24  */
25 
26 #ifndef USE_HOSTCC
27 #include <common.h>
28 #include <watchdog.h>
29 
30 #ifdef CONFIG_SHOW_BOOT_PROGRESS
31 #include <status_led.h>
32 #endif
33 
34 #ifdef CONFIG_HAS_DATAFLASH
35 #include <dataflash.h>
36 #endif
37 
38 #ifdef CONFIG_LOGBUFFER
39 #include <logbuff.h>
40 #endif
41 
42 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
43 #include <rtc.h>
44 #endif
45 
46 #include <image.h>
47 
48 #if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
49 #include <fdt.h>
50 #include <libfdt.h>
51 #include <fdt_support.h>
52 #endif
53 
54 #if defined(CONFIG_FIT)
55 #include <u-boot/md5.h>
56 #include <sha1.h>
57 
58 static int fit_check_ramdisk(const void *fit, int os_noffset,
59 		uint8_t arch, int verify);
60 #endif
61 
62 #ifdef CONFIG_CMD_BDI
63 extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
64 #endif
65 
66 DECLARE_GLOBAL_DATA_PTR;
67 
68 static const image_header_t *image_get_ramdisk(ulong rd_addr, uint8_t arch,
69 						int verify);
70 #else
71 #include "mkimage.h"
72 #include <u-boot/md5.h>
73 #include <time.h>
74 #include <image.h>
75 #endif /* !USE_HOSTCC*/
76 
77 static const table_entry_t uimage_arch[] = {
78 	{	IH_ARCH_INVALID,	NULL,		"Invalid ARCH",	},
79 	{	IH_ARCH_ALPHA,		"alpha",	"Alpha",	},
80 	{	IH_ARCH_ARM,		"arm",		"ARM",		},
81 	{	IH_ARCH_I386,		"x86",		"Intel x86",	},
82 	{	IH_ARCH_IA64,		"ia64",		"IA64",		},
83 	{	IH_ARCH_M68K,		"m68k",		"M68K",		},
84 	{	IH_ARCH_MICROBLAZE,	"microblaze",	"MicroBlaze",	},
85 	{	IH_ARCH_MIPS,		"mips",		"MIPS",		},
86 	{	IH_ARCH_MIPS64,		"mips64",	"MIPS 64 Bit",	},
87 	{	IH_ARCH_NIOS2,		"nios2",	"NIOS II",	},
88 	{	IH_ARCH_PPC,		"powerpc",	"PowerPC",	},
89 	{	IH_ARCH_PPC,		"ppc",		"PowerPC",	},
90 	{	IH_ARCH_S390,		"s390",		"IBM S390",	},
91 	{	IH_ARCH_SH,		"sh",		"SuperH",	},
92 	{	IH_ARCH_SPARC,		"sparc",	"SPARC",	},
93 	{	IH_ARCH_SPARC64,	"sparc64",	"SPARC 64 Bit",	},
94 	{	IH_ARCH_BLACKFIN,	"blackfin",	"Blackfin",	},
95 	{	IH_ARCH_AVR32,		"avr32",	"AVR32",	},
96 	{	IH_ARCH_NDS32,		"nds32",	"NDS32",	},
97 	{	-1,			"",		"",		},
98 };
99 
100 static const table_entry_t uimage_os[] = {
101 	{	IH_OS_INVALID,	NULL,		"Invalid OS",		},
102 	{	IH_OS_LINUX,	"linux",	"Linux",		},
103 #if defined(CONFIG_LYNXKDI) || defined(USE_HOSTCC)
104 	{	IH_OS_LYNXOS,	"lynxos",	"LynxOS",		},
105 #endif
106 	{	IH_OS_NETBSD,	"netbsd",	"NetBSD",		},
107 	{	IH_OS_OSE,	"ose",		"Enea OSE",		},
108 	{	IH_OS_RTEMS,	"rtems",	"RTEMS",		},
109 	{	IH_OS_U_BOOT,	"u-boot",	"U-Boot",		},
110 #if defined(CONFIG_CMD_ELF) || defined(USE_HOSTCC)
111 	{	IH_OS_QNX,	"qnx",		"QNX",			},
112 	{	IH_OS_VXWORKS,	"vxworks",	"VxWorks",		},
113 #endif
114 #if defined(CONFIG_INTEGRITY) || defined(USE_HOSTCC)
115 	{	IH_OS_INTEGRITY,"integrity",	"INTEGRITY",		},
116 #endif
117 #ifdef USE_HOSTCC
118 	{	IH_OS_4_4BSD,	"4_4bsd",	"4_4BSD",		},
119 	{	IH_OS_DELL,	"dell",		"Dell",			},
120 	{	IH_OS_ESIX,	"esix",		"Esix",			},
121 	{	IH_OS_FREEBSD,	"freebsd",	"FreeBSD",		},
122 	{	IH_OS_IRIX,	"irix",		"Irix",			},
123 	{	IH_OS_NCR,	"ncr",		"NCR",			},
124 	{	IH_OS_OPENBSD,	"openbsd",	"OpenBSD",		},
125 	{	IH_OS_PSOS,	"psos",		"pSOS",			},
126 	{	IH_OS_SCO,	"sco",		"SCO",			},
127 	{	IH_OS_SOLARIS,	"solaris",	"Solaris",		},
128 	{	IH_OS_SVR4,	"svr4",		"SVR4",			},
129 #endif
130 	{	-1,		"",		"",			},
131 };
132 
133 static const table_entry_t uimage_type[] = {
134 	{	IH_TYPE_AISIMAGE,   "aisimage",   "Davinci AIS image",},
135 	{	IH_TYPE_FILESYSTEM, "filesystem", "Filesystem Image",	},
136 	{	IH_TYPE_FIRMWARE,   "firmware",	  "Firmware",		},
137 	{	IH_TYPE_FLATDT,     "flat_dt",    "Flat Device Tree",	},
138 	{	IH_TYPE_KERNEL,	    "kernel",	  "Kernel Image",	},
139 	{	IH_TYPE_KWBIMAGE,   "kwbimage",   "Kirkwood Boot Image",},
140 	{	IH_TYPE_IMXIMAGE,   "imximage",   "Freescale i.MX Boot Image",},
141 	{	IH_TYPE_INVALID,    NULL,	  "Invalid Image",	},
142 	{	IH_TYPE_MULTI,	    "multi",	  "Multi-File Image",	},
143 	{	IH_TYPE_OMAPIMAGE,  "omapimage",  "TI OMAP SPL With GP CH",},
144 	{	IH_TYPE_RAMDISK,    "ramdisk",	  "RAMDisk Image",	},
145 	{	IH_TYPE_SCRIPT,     "script",	  "Script",		},
146 	{	IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
147 	{	IH_TYPE_UBLIMAGE,   "ublimage",   "Davinci UBL image",},
148 	{	-1,		    "",		  "",			},
149 };
150 
151 static const table_entry_t uimage_comp[] = {
152 	{	IH_COMP_NONE,	"none",		"uncompressed",		},
153 	{	IH_COMP_BZIP2,	"bzip2",	"bzip2 compressed",	},
154 	{	IH_COMP_GZIP,	"gzip",		"gzip compressed",	},
155 	{	IH_COMP_LZMA,	"lzma",		"lzma compressed",	},
156 	{	IH_COMP_LZO,	"lzo",		"lzo compressed",	},
157 	{	-1,		"",		"",			},
158 };
159 
160 uint32_t crc32(uint32_t, const unsigned char *, uint);
161 uint32_t crc32_wd(uint32_t, const unsigned char *, uint, uint);
162 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
163 static void genimg_print_time(time_t timestamp);
164 #endif
165 
166 /*****************************************************************************/
167 /* Legacy format routines */
168 /*****************************************************************************/
169 int image_check_hcrc(const image_header_t *hdr)
170 {
171 	ulong hcrc;
172 	ulong len = image_get_header_size();
173 	image_header_t header;
174 
175 	/* Copy header so we can blank CRC field for re-calculation */
176 	memmove(&header, (char *)hdr, image_get_header_size());
177 	image_set_hcrc(&header, 0);
178 
179 	hcrc = crc32(0, (unsigned char *)&header, len);
180 
181 	return (hcrc == image_get_hcrc(hdr));
182 }
183 
184 int image_check_dcrc(const image_header_t *hdr)
185 {
186 	ulong data = image_get_data(hdr);
187 	ulong len = image_get_data_size(hdr);
188 	ulong dcrc = crc32_wd(0, (unsigned char *)data, len, CHUNKSZ_CRC32);
189 
190 	return (dcrc == image_get_dcrc(hdr));
191 }
192 
193 /**
194  * image_multi_count - get component (sub-image) count
195  * @hdr: pointer to the header of the multi component image
196  *
197  * image_multi_count() returns number of components in a multi
198  * component image.
199  *
200  * Note: no checking of the image type is done, caller must pass
201  * a valid multi component image.
202  *
203  * returns:
204  *     number of components
205  */
206 ulong image_multi_count(const image_header_t *hdr)
207 {
208 	ulong i, count = 0;
209 	uint32_t *size;
210 
211 	/* get start of the image payload, which in case of multi
212 	 * component images that points to a table of component sizes */
213 	size = (uint32_t *)image_get_data(hdr);
214 
215 	/* count non empty slots */
216 	for (i = 0; size[i]; ++i)
217 		count++;
218 
219 	return count;
220 }
221 
222 /**
223  * image_multi_getimg - get component data address and size
224  * @hdr: pointer to the header of the multi component image
225  * @idx: index of the requested component
226  * @data: pointer to a ulong variable, will hold component data address
227  * @len: pointer to a ulong variable, will hold component size
228  *
229  * image_multi_getimg() returns size and data address for the requested
230  * component in a multi component image.
231  *
232  * Note: no checking of the image type is done, caller must pass
233  * a valid multi component image.
234  *
235  * returns:
236  *     data address and size of the component, if idx is valid
237  *     0 in data and len, if idx is out of range
238  */
239 void image_multi_getimg(const image_header_t *hdr, ulong idx,
240 			ulong *data, ulong *len)
241 {
242 	int i;
243 	uint32_t *size;
244 	ulong offset, count, img_data;
245 
246 	/* get number of component */
247 	count = image_multi_count(hdr);
248 
249 	/* get start of the image payload, which in case of multi
250 	 * component images that points to a table of component sizes */
251 	size = (uint32_t *)image_get_data(hdr);
252 
253 	/* get address of the proper component data start, which means
254 	 * skipping sizes table (add 1 for last, null entry) */
255 	img_data = image_get_data(hdr) + (count + 1) * sizeof(uint32_t);
256 
257 	if (idx < count) {
258 		*len = uimage_to_cpu(size[idx]);
259 		offset = 0;
260 
261 		/* go over all indices preceding requested component idx */
262 		for (i = 0; i < idx; i++) {
263 			/* add up i-th component size, rounding up to 4 bytes */
264 			offset += (uimage_to_cpu(size[i]) + 3) & ~3 ;
265 		}
266 
267 		/* calculate idx-th component data address */
268 		*data = img_data + offset;
269 	} else {
270 		*len = 0;
271 		*data = 0;
272 	}
273 }
274 
275 static void image_print_type(const image_header_t *hdr)
276 {
277 	const char *os, *arch, *type, *comp;
278 
279 	os = genimg_get_os_name(image_get_os(hdr));
280 	arch = genimg_get_arch_name(image_get_arch(hdr));
281 	type = genimg_get_type_name(image_get_type(hdr));
282 	comp = genimg_get_comp_name(image_get_comp(hdr));
283 
284 	printf("%s %s %s (%s)\n", arch, os, type, comp);
285 }
286 
287 /**
288  * image_print_contents - prints out the contents of the legacy format image
289  * @ptr: pointer to the legacy format image header
290  * @p: pointer to prefix string
291  *
292  * image_print_contents() formats a multi line legacy image contents description.
293  * The routine prints out all header fields followed by the size/offset data
294  * for MULTI/SCRIPT images.
295  *
296  * returns:
297  *     no returned results
298  */
299 void image_print_contents(const void *ptr)
300 {
301 	const image_header_t *hdr = (const image_header_t *)ptr;
302 	const char *p;
303 
304 #ifdef USE_HOSTCC
305 	p = "";
306 #else
307 	p = "   ";
308 #endif
309 
310 	printf("%sImage Name:   %.*s\n", p, IH_NMLEN, image_get_name(hdr));
311 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
312 	printf("%sCreated:      ", p);
313 	genimg_print_time((time_t)image_get_time(hdr));
314 #endif
315 	printf("%sImage Type:   ", p);
316 	image_print_type(hdr);
317 	printf("%sData Size:    ", p);
318 	genimg_print_size(image_get_data_size(hdr));
319 	printf("%sLoad Address: %08x\n", p, image_get_load(hdr));
320 	printf("%sEntry Point:  %08x\n", p, image_get_ep(hdr));
321 
322 	if (image_check_type(hdr, IH_TYPE_MULTI) ||
323 			image_check_type(hdr, IH_TYPE_SCRIPT)) {
324 		int i;
325 		ulong data, len;
326 		ulong count = image_multi_count(hdr);
327 
328 		printf("%sContents:\n", p);
329 		for (i = 0; i < count; i++) {
330 			image_multi_getimg(hdr, i, &data, &len);
331 
332 			printf("%s   Image %d: ", p, i);
333 			genimg_print_size(len);
334 
335 			if (image_check_type(hdr, IH_TYPE_SCRIPT) && i > 0) {
336 				/*
337 				 * the user may need to know offsets
338 				 * if planning to do something with
339 				 * multiple files
340 				 */
341 				printf("%s    Offset = 0x%08lx\n", p, data);
342 			}
343 		}
344 	}
345 }
346 
347 
348 #ifndef USE_HOSTCC
349 /**
350  * image_get_ramdisk - get and verify ramdisk image
351  * @rd_addr: ramdisk image start address
352  * @arch: expected ramdisk architecture
353  * @verify: checksum verification flag
354  *
355  * image_get_ramdisk() returns a pointer to the verified ramdisk image
356  * header. Routine receives image start address and expected architecture
357  * flag. Verification done covers data and header integrity and os/type/arch
358  * fields checking.
359  *
360  * If dataflash support is enabled routine checks for dataflash addresses
361  * and handles required dataflash reads.
362  *
363  * returns:
364  *     pointer to a ramdisk image header, if image was found and valid
365  *     otherwise, return NULL
366  */
367 static const image_header_t *image_get_ramdisk(ulong rd_addr, uint8_t arch,
368 						int verify)
369 {
370 	const image_header_t *rd_hdr = (const image_header_t *)rd_addr;
371 
372 	if (!image_check_magic(rd_hdr)) {
373 		puts("Bad Magic Number\n");
374 		show_boot_progress(-10);
375 		return NULL;
376 	}
377 
378 	if (!image_check_hcrc(rd_hdr)) {
379 		puts("Bad Header Checksum\n");
380 		show_boot_progress(-11);
381 		return NULL;
382 	}
383 
384 	show_boot_progress(10);
385 	image_print_contents(rd_hdr);
386 
387 	if (verify) {
388 		puts("   Verifying Checksum ... ");
389 		if (!image_check_dcrc(rd_hdr)) {
390 			puts("Bad Data CRC\n");
391 			show_boot_progress(-12);
392 			return NULL;
393 		}
394 		puts("OK\n");
395 	}
396 
397 	show_boot_progress(11);
398 
399 	if (!image_check_os(rd_hdr, IH_OS_LINUX) ||
400 	    !image_check_arch(rd_hdr, arch) ||
401 	    !image_check_type(rd_hdr, IH_TYPE_RAMDISK)) {
402 		printf("No Linux %s Ramdisk Image\n",
403 				genimg_get_arch_name(arch));
404 		show_boot_progress(-13);
405 		return NULL;
406 	}
407 
408 	return rd_hdr;
409 }
410 #endif /* !USE_HOSTCC */
411 
412 /*****************************************************************************/
413 /* Shared dual-format routines */
414 /*****************************************************************************/
415 #ifndef USE_HOSTCC
416 int getenv_yesno(char *var)
417 {
418 	char *s = getenv(var);
419 	return (s && (*s == 'n')) ? 0 : 1;
420 }
421 
422 ulong getenv_bootm_low(void)
423 {
424 	char *s = getenv("bootm_low");
425 	if (s) {
426 		ulong tmp = simple_strtoul(s, NULL, 16);
427 		return tmp;
428 	}
429 
430 #if defined(CONFIG_SYS_SDRAM_BASE)
431 	return CONFIG_SYS_SDRAM_BASE;
432 #elif defined(CONFIG_ARM)
433 	return gd->bd->bi_dram[0].start;
434 #else
435 	return 0;
436 #endif
437 }
438 
439 phys_size_t getenv_bootm_size(void)
440 {
441 	phys_size_t tmp;
442 	char *s = getenv("bootm_size");
443 	if (s) {
444 		tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
445 		return tmp;
446 	}
447 	s = getenv("bootm_low");
448 	if (s)
449 		tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
450 	else
451 		tmp = 0;
452 
453 
454 #if defined(CONFIG_ARM)
455 	return gd->bd->bi_dram[0].size - tmp;
456 #else
457 	return gd->bd->bi_memsize - tmp;
458 #endif
459 }
460 
461 phys_size_t getenv_bootm_mapsize(void)
462 {
463 	phys_size_t tmp;
464 	char *s = getenv("bootm_mapsize");
465 	if (s) {
466 		tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
467 		return tmp;
468 	}
469 
470 #if defined(CONFIG_SYS_BOOTMAPSZ)
471 	return CONFIG_SYS_BOOTMAPSZ;
472 #else
473 	return getenv_bootm_size();
474 #endif
475 }
476 
477 void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
478 {
479 	if (to == from)
480 		return;
481 
482 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
483 	while (len > 0) {
484 		size_t tail = (len > chunksz) ? chunksz : len;
485 		WATCHDOG_RESET();
486 		memmove(to, from, tail);
487 		to += tail;
488 		from += tail;
489 		len -= tail;
490 	}
491 #else	/* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
492 	memmove(to, from, len);
493 #endif	/* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
494 }
495 #endif /* !USE_HOSTCC */
496 
497 void genimg_print_size(uint32_t size)
498 {
499 #ifndef USE_HOSTCC
500 	printf("%d Bytes = ", size);
501 	print_size(size, "\n");
502 #else
503 	printf("%d Bytes = %.2f kB = %.2f MB\n",
504 			size, (double)size / 1.024e3,
505 			(double)size / 1.048576e6);
506 #endif
507 }
508 
509 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
510 static void genimg_print_time(time_t timestamp)
511 {
512 #ifndef USE_HOSTCC
513 	struct rtc_time tm;
514 
515 	to_tm(timestamp, &tm);
516 	printf("%4d-%02d-%02d  %2d:%02d:%02d UTC\n",
517 			tm.tm_year, tm.tm_mon, tm.tm_mday,
518 			tm.tm_hour, tm.tm_min, tm.tm_sec);
519 #else
520 	printf("%s", ctime(&timestamp));
521 #endif
522 }
523 #endif /* CONFIG_TIMESTAMP || CONFIG_CMD_DATE || USE_HOSTCC */
524 
525 /**
526  * get_table_entry_name - translate entry id to long name
527  * @table: pointer to a translation table for entries of a specific type
528  * @msg: message to be returned when translation fails
529  * @id: entry id to be translated
530  *
531  * get_table_entry_name() will go over translation table trying to find
532  * entry that matches given id. If matching entry is found, its long
533  * name is returned to the caller.
534  *
535  * returns:
536  *     long entry name if translation succeeds
537  *     msg otherwise
538  */
539 char *get_table_entry_name(const table_entry_t *table, char *msg, int id)
540 {
541 	for (; table->id >= 0; ++table) {
542 		if (table->id == id)
543 #if defined(USE_HOSTCC) || !defined(CONFIG_NEEDS_MANUAL_RELOC)
544 			return table->lname;
545 #else
546 			return table->lname + gd->reloc_off;
547 #endif
548 	}
549 	return (msg);
550 }
551 
552 const char *genimg_get_os_name(uint8_t os)
553 {
554 	return (get_table_entry_name(uimage_os, "Unknown OS", os));
555 }
556 
557 const char *genimg_get_arch_name(uint8_t arch)
558 {
559 	return (get_table_entry_name(uimage_arch, "Unknown Architecture",
560 					arch));
561 }
562 
563 const char *genimg_get_type_name(uint8_t type)
564 {
565 	return (get_table_entry_name(uimage_type, "Unknown Image", type));
566 }
567 
568 const char *genimg_get_comp_name(uint8_t comp)
569 {
570 	return (get_table_entry_name(uimage_comp, "Unknown Compression",
571 					comp));
572 }
573 
574 /**
575  * get_table_entry_id - translate short entry name to id
576  * @table: pointer to a translation table for entries of a specific type
577  * @table_name: to be used in case of error
578  * @name: entry short name to be translated
579  *
580  * get_table_entry_id() will go over translation table trying to find
581  * entry that matches given short name. If matching entry is found,
582  * its id returned to the caller.
583  *
584  * returns:
585  *     entry id if translation succeeds
586  *     -1 otherwise
587  */
588 int get_table_entry_id(const table_entry_t *table,
589 		const char *table_name, const char *name)
590 {
591 	const table_entry_t *t;
592 #ifdef USE_HOSTCC
593 	int first = 1;
594 
595 	for (t = table; t->id >= 0; ++t) {
596 		if (t->sname && strcasecmp(t->sname, name) == 0)
597 			return(t->id);
598 	}
599 
600 	fprintf(stderr, "\nInvalid %s Type - valid names are", table_name);
601 	for (t = table; t->id >= 0; ++t) {
602 		if (t->sname == NULL)
603 			continue;
604 		fprintf(stderr, "%c %s", (first) ? ':' : ',', t->sname);
605 		first = 0;
606 	}
607 	fprintf(stderr, "\n");
608 #else
609 	for (t = table; t->id >= 0; ++t) {
610 #ifdef CONFIG_NEEDS_MANUAL_RELOC
611 		if (t->sname && strcmp(t->sname + gd->reloc_off, name) == 0)
612 #else
613 		if (t->sname && strcmp(t->sname, name) == 0)
614 #endif
615 			return (t->id);
616 	}
617 	debug("Invalid %s Type: %s\n", table_name, name);
618 #endif /* USE_HOSTCC */
619 	return (-1);
620 }
621 
622 int genimg_get_os_id(const char *name)
623 {
624 	return (get_table_entry_id(uimage_os, "OS", name));
625 }
626 
627 int genimg_get_arch_id(const char *name)
628 {
629 	return (get_table_entry_id(uimage_arch, "CPU", name));
630 }
631 
632 int genimg_get_type_id(const char *name)
633 {
634 	return (get_table_entry_id(uimage_type, "Image", name));
635 }
636 
637 int genimg_get_comp_id(const char *name)
638 {
639 	return (get_table_entry_id(uimage_comp, "Compression", name));
640 }
641 
642 #ifndef USE_HOSTCC
643 /**
644  * genimg_get_format - get image format type
645  * @img_addr: image start address
646  *
647  * genimg_get_format() checks whether provided address points to a valid
648  * legacy or FIT image.
649  *
650  * New uImage format and FDT blob are based on a libfdt. FDT blob
651  * may be passed directly or embedded in a FIT image. In both situations
652  * genimg_get_format() must be able to dectect libfdt header.
653  *
654  * returns:
655  *     image format type or IMAGE_FORMAT_INVALID if no image is present
656  */
657 int genimg_get_format(void *img_addr)
658 {
659 	ulong format = IMAGE_FORMAT_INVALID;
660 	const image_header_t *hdr;
661 #if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
662 	char *fit_hdr;
663 #endif
664 
665 	hdr = (const image_header_t *)img_addr;
666 	if (image_check_magic(hdr))
667 		format = IMAGE_FORMAT_LEGACY;
668 #if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
669 	else {
670 		fit_hdr = (char *)img_addr;
671 		if (fdt_check_header(fit_hdr) == 0)
672 			format = IMAGE_FORMAT_FIT;
673 	}
674 #endif
675 
676 	return format;
677 }
678 
679 /**
680  * genimg_get_image - get image from special storage (if necessary)
681  * @img_addr: image start address
682  *
683  * genimg_get_image() checks if provided image start adddress is located
684  * in a dataflash storage. If so, image is moved to a system RAM memory.
685  *
686  * returns:
687  *     image start address after possible relocation from special storage
688  */
689 ulong genimg_get_image(ulong img_addr)
690 {
691 	ulong ram_addr = img_addr;
692 
693 #ifdef CONFIG_HAS_DATAFLASH
694 	ulong h_size, d_size;
695 
696 	if (addr_dataflash(img_addr)) {
697 		/* ger RAM address */
698 		ram_addr = CONFIG_SYS_LOAD_ADDR;
699 
700 		/* get header size */
701 		h_size = image_get_header_size();
702 #if defined(CONFIG_FIT)
703 		if (sizeof(struct fdt_header) > h_size)
704 			h_size = sizeof(struct fdt_header);
705 #endif
706 
707 		/* read in header */
708 		debug("   Reading image header from dataflash address "
709 			"%08lx to RAM address %08lx\n", img_addr, ram_addr);
710 
711 		read_dataflash(img_addr, h_size, (char *)ram_addr);
712 
713 		/* get data size */
714 		switch (genimg_get_format((void *)ram_addr)) {
715 		case IMAGE_FORMAT_LEGACY:
716 			d_size = image_get_data_size(
717 					(const image_header_t *)ram_addr);
718 			debug("   Legacy format image found at 0x%08lx, "
719 					"size 0x%08lx\n",
720 					ram_addr, d_size);
721 			break;
722 #if defined(CONFIG_FIT)
723 		case IMAGE_FORMAT_FIT:
724 			d_size = fit_get_size((const void *)ram_addr) - h_size;
725 			debug("   FIT/FDT format image found at 0x%08lx, "
726 					"size 0x%08lx\n",
727 					ram_addr, d_size);
728 			break;
729 #endif
730 		default:
731 			printf("   No valid image found at 0x%08lx\n",
732 				img_addr);
733 			return ram_addr;
734 		}
735 
736 		/* read in image data */
737 		debug("   Reading image remaining data from dataflash address "
738 			"%08lx to RAM address %08lx\n", img_addr + h_size,
739 			ram_addr + h_size);
740 
741 		read_dataflash(img_addr + h_size, d_size,
742 				(char *)(ram_addr + h_size));
743 
744 	}
745 #endif /* CONFIG_HAS_DATAFLASH */
746 
747 	return ram_addr;
748 }
749 
750 /**
751  * fit_has_config - check if there is a valid FIT configuration
752  * @images: pointer to the bootm command headers structure
753  *
754  * fit_has_config() checks if there is a FIT configuration in use
755  * (if FTI support is present).
756  *
757  * returns:
758  *     0, no FIT support or no configuration found
759  *     1, configuration found
760  */
761 int genimg_has_config(bootm_headers_t *images)
762 {
763 #if defined(CONFIG_FIT)
764 	if (images->fit_uname_cfg)
765 		return 1;
766 #endif
767 	return 0;
768 }
769 
770 /**
771  * boot_get_ramdisk - main ramdisk handling routine
772  * @argc: command argument count
773  * @argv: command argument list
774  * @images: pointer to the bootm images structure
775  * @arch: expected ramdisk architecture
776  * @rd_start: pointer to a ulong variable, will hold ramdisk start address
777  * @rd_end: pointer to a ulong variable, will hold ramdisk end
778  *
779  * boot_get_ramdisk() is responsible for finding a valid ramdisk image.
780  * Curently supported are the following ramdisk sources:
781  *      - multicomponent kernel/ramdisk image,
782  *      - commandline provided address of decicated ramdisk image.
783  *
784  * returns:
785  *     0, if ramdisk image was found and valid, or skiped
786  *     rd_start and rd_end are set to ramdisk start/end addresses if
787  *     ramdisk image is found and valid
788  *
789  *     1, if ramdisk image is found but corrupted, or invalid
790  *     rd_start and rd_end are set to 0 if no ramdisk exists
791  */
792 int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images,
793 		uint8_t arch, ulong *rd_start, ulong *rd_end)
794 {
795 	ulong rd_addr, rd_load;
796 	ulong rd_data, rd_len;
797 	const image_header_t *rd_hdr;
798 #if defined(CONFIG_FIT)
799 	void		*fit_hdr;
800 	const char	*fit_uname_config = NULL;
801 	const char	*fit_uname_ramdisk = NULL;
802 	ulong		default_addr;
803 	int		rd_noffset;
804 	int		cfg_noffset;
805 	const void	*data;
806 	size_t		size;
807 #endif
808 
809 	*rd_start = 0;
810 	*rd_end = 0;
811 
812 	/*
813 	 * Look for a '-' which indicates to ignore the
814 	 * ramdisk argument
815 	 */
816 	if ((argc >= 3) && (strcmp(argv[2], "-") ==  0)) {
817 		debug("## Skipping init Ramdisk\n");
818 		rd_len = rd_data = 0;
819 	} else if (argc >= 3 || genimg_has_config(images)) {
820 #if defined(CONFIG_FIT)
821 		if (argc >= 3) {
822 			/*
823 			 * If the init ramdisk comes from the FIT image and
824 			 * the FIT image address is omitted in the command
825 			 * line argument, try to use os FIT image address or
826 			 * default load address.
827 			 */
828 			if (images->fit_uname_os)
829 				default_addr = (ulong)images->fit_hdr_os;
830 			else
831 				default_addr = load_addr;
832 
833 			if (fit_parse_conf(argv[2], default_addr,
834 						&rd_addr, &fit_uname_config)) {
835 				debug("*  ramdisk: config '%s' from image at "
836 						"0x%08lx\n",
837 						fit_uname_config, rd_addr);
838 			} else if (fit_parse_subimage(argv[2], default_addr,
839 						&rd_addr, &fit_uname_ramdisk)) {
840 				debug("*  ramdisk: subimage '%s' from image at "
841 						"0x%08lx\n",
842 						fit_uname_ramdisk, rd_addr);
843 			} else
844 #endif
845 			{
846 				rd_addr = simple_strtoul(argv[2], NULL, 16);
847 				debug("*  ramdisk: cmdline image address = "
848 						"0x%08lx\n",
849 						rd_addr);
850 			}
851 #if defined(CONFIG_FIT)
852 		} else {
853 			/* use FIT configuration provided in first bootm
854 			 * command argument
855 			 */
856 			rd_addr = (ulong)images->fit_hdr_os;
857 			fit_uname_config = images->fit_uname_cfg;
858 			debug("*  ramdisk: using config '%s' from image "
859 					"at 0x%08lx\n",
860 					fit_uname_config, rd_addr);
861 
862 			/*
863 			 * Check whether configuration has ramdisk defined,
864 			 * if not, don't try to use it, quit silently.
865 			 */
866 			fit_hdr = (void *)rd_addr;
867 			cfg_noffset = fit_conf_get_node(fit_hdr,
868 							fit_uname_config);
869 			if (cfg_noffset < 0) {
870 				debug("*  ramdisk: no such config\n");
871 				return 1;
872 			}
873 
874 			rd_noffset = fit_conf_get_ramdisk_node(fit_hdr,
875 								cfg_noffset);
876 			if (rd_noffset < 0) {
877 				debug("*  ramdisk: no ramdisk in config\n");
878 				return 0;
879 			}
880 		}
881 #endif
882 
883 		/* copy from dataflash if needed */
884 		rd_addr = genimg_get_image(rd_addr);
885 
886 		/*
887 		 * Check if there is an initrd image at the
888 		 * address provided in the second bootm argument
889 		 * check image type, for FIT images get FIT node.
890 		 */
891 		switch (genimg_get_format((void *)rd_addr)) {
892 		case IMAGE_FORMAT_LEGACY:
893 			printf("## Loading init Ramdisk from Legacy "
894 					"Image at %08lx ...\n", rd_addr);
895 
896 			show_boot_progress(9);
897 			rd_hdr = image_get_ramdisk(rd_addr, arch,
898 							images->verify);
899 
900 			if (rd_hdr == NULL)
901 				return 1;
902 
903 			rd_data = image_get_data(rd_hdr);
904 			rd_len = image_get_data_size(rd_hdr);
905 			rd_load = image_get_load(rd_hdr);
906 			break;
907 #if defined(CONFIG_FIT)
908 		case IMAGE_FORMAT_FIT:
909 			fit_hdr = (void *)rd_addr;
910 			printf("## Loading init Ramdisk from FIT "
911 					"Image at %08lx ...\n", rd_addr);
912 
913 			show_boot_progress(120);
914 			if (!fit_check_format(fit_hdr)) {
915 				puts("Bad FIT ramdisk image format!\n");
916 				show_boot_progress(-120);
917 				return 1;
918 			}
919 			show_boot_progress(121);
920 
921 			if (!fit_uname_ramdisk) {
922 				/*
923 				 * no ramdisk image node unit name, try to get config
924 				 * node first. If config unit node name is NULL
925 				 * fit_conf_get_node() will try to find default config node
926 				 */
927 				show_boot_progress(122);
928 				cfg_noffset = fit_conf_get_node(fit_hdr,
929 							fit_uname_config);
930 				if (cfg_noffset < 0) {
931 					puts("Could not find configuration "
932 						"node\n");
933 					show_boot_progress(-122);
934 					return 1;
935 				}
936 				fit_uname_config = fdt_get_name(fit_hdr,
937 							cfg_noffset, NULL);
938 				printf("   Using '%s' configuration\n",
939 					fit_uname_config);
940 
941 				rd_noffset = fit_conf_get_ramdisk_node(fit_hdr,
942 							cfg_noffset);
943 				fit_uname_ramdisk = fit_get_name(fit_hdr,
944 							rd_noffset, NULL);
945 			} else {
946 				/* get ramdisk component image node offset */
947 				show_boot_progress(123);
948 				rd_noffset = fit_image_get_node(fit_hdr,
949 						fit_uname_ramdisk);
950 			}
951 			if (rd_noffset < 0) {
952 				puts("Could not find subimage node\n");
953 				show_boot_progress(-124);
954 				return 1;
955 			}
956 
957 			printf("   Trying '%s' ramdisk subimage\n",
958 				fit_uname_ramdisk);
959 
960 			show_boot_progress(125);
961 			if (!fit_check_ramdisk(fit_hdr, rd_noffset, arch,
962 						images->verify))
963 				return 1;
964 
965 			/* get ramdisk image data address and length */
966 			if (fit_image_get_data(fit_hdr, rd_noffset, &data,
967 						&size)) {
968 				puts("Could not find ramdisk subimage data!\n");
969 				show_boot_progress(-127);
970 				return 1;
971 			}
972 			show_boot_progress(128);
973 
974 			rd_data = (ulong)data;
975 			rd_len = size;
976 
977 			if (fit_image_get_load(fit_hdr, rd_noffset, &rd_load)) {
978 				puts("Can't get ramdisk subimage load "
979 					"address!\n");
980 				show_boot_progress(-129);
981 				return 1;
982 			}
983 			show_boot_progress(129);
984 
985 			images->fit_hdr_rd = fit_hdr;
986 			images->fit_uname_rd = fit_uname_ramdisk;
987 			images->fit_noffset_rd = rd_noffset;
988 			break;
989 #endif
990 		default:
991 			puts("Wrong Ramdisk Image Format\n");
992 			rd_data = rd_len = rd_load = 0;
993 			return 1;
994 		}
995 	} else if (images->legacy_hdr_valid &&
996 			image_check_type(&images->legacy_hdr_os_copy,
997 						IH_TYPE_MULTI)) {
998 
999 		/*
1000 		 * Now check if we have a legacy mult-component image,
1001 		 * get second entry data start address and len.
1002 		 */
1003 		show_boot_progress(13);
1004 		printf("## Loading init Ramdisk from multi component "
1005 				"Legacy Image at %08lx ...\n",
1006 				(ulong)images->legacy_hdr_os);
1007 
1008 		image_multi_getimg(images->legacy_hdr_os, 1, &rd_data, &rd_len);
1009 	} else {
1010 		/*
1011 		 * no initrd image
1012 		 */
1013 		show_boot_progress(14);
1014 		rd_len = rd_data = 0;
1015 	}
1016 
1017 	if (!rd_data) {
1018 		debug("## No init Ramdisk\n");
1019 	} else {
1020 		*rd_start = rd_data;
1021 		*rd_end = rd_data + rd_len;
1022 	}
1023 	debug("   ramdisk start = 0x%08lx, ramdisk end = 0x%08lx\n",
1024 			*rd_start, *rd_end);
1025 
1026 	return 0;
1027 }
1028 
1029 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
1030 /**
1031  * boot_ramdisk_high - relocate init ramdisk
1032  * @lmb: pointer to lmb handle, will be used for memory mgmt
1033  * @rd_data: ramdisk data start address
1034  * @rd_len: ramdisk data length
1035  * @initrd_start: pointer to a ulong variable, will hold final init ramdisk
1036  *      start address (after possible relocation)
1037  * @initrd_end: pointer to a ulong variable, will hold final init ramdisk
1038  *      end address (after possible relocation)
1039  *
1040  * boot_ramdisk_high() takes a relocation hint from "initrd_high" environement
1041  * variable and if requested ramdisk data is moved to a specified location.
1042  *
1043  * Initrd_start and initrd_end are set to final (after relocation) ramdisk
1044  * start/end addresses if ramdisk image start and len were provided,
1045  * otherwise set initrd_start and initrd_end set to zeros.
1046  *
1047  * returns:
1048  *      0 - success
1049  *     -1 - failure
1050  */
1051 int boot_ramdisk_high(struct lmb *lmb, ulong rd_data, ulong rd_len,
1052 		  ulong *initrd_start, ulong *initrd_end)
1053 {
1054 	char	*s;
1055 	ulong	initrd_high;
1056 	int	initrd_copy_to_ram = 1;
1057 
1058 	if ((s = getenv("initrd_high")) != NULL) {
1059 		/* a value of "no" or a similar string will act like 0,
1060 		 * turning the "load high" feature off. This is intentional.
1061 		 */
1062 		initrd_high = simple_strtoul(s, NULL, 16);
1063 		if (initrd_high == ~0)
1064 			initrd_copy_to_ram = 0;
1065 	} else {
1066 		/* not set, no restrictions to load high */
1067 		initrd_high = ~0;
1068 	}
1069 
1070 
1071 #ifdef CONFIG_LOGBUFFER
1072 	/* Prevent initrd from overwriting logbuffer */
1073 	lmb_reserve(lmb, logbuffer_base() - LOGBUFF_OVERHEAD, LOGBUFF_RESERVE);
1074 #endif
1075 
1076 	debug("## initrd_high = 0x%08lx, copy_to_ram = %d\n",
1077 			initrd_high, initrd_copy_to_ram);
1078 
1079 	if (rd_data) {
1080 		if (!initrd_copy_to_ram) {	/* zero-copy ramdisk support */
1081 			debug("   in-place initrd\n");
1082 			*initrd_start = rd_data;
1083 			*initrd_end = rd_data + rd_len;
1084 			lmb_reserve(lmb, rd_data, rd_len);
1085 		} else {
1086 			if (initrd_high)
1087 				*initrd_start = (ulong)lmb_alloc_base(lmb,
1088 						rd_len, 0x1000, initrd_high);
1089 			else
1090 				*initrd_start = (ulong)lmb_alloc(lmb, rd_len,
1091 								 0x1000);
1092 
1093 			if (*initrd_start == 0) {
1094 				puts("ramdisk - allocation error\n");
1095 				goto error;
1096 			}
1097 			show_boot_progress(12);
1098 
1099 			*initrd_end = *initrd_start + rd_len;
1100 			printf("   Loading Ramdisk to %08lx, end %08lx ... ",
1101 					*initrd_start, *initrd_end);
1102 
1103 			memmove_wd((void *)*initrd_start,
1104 					(void *)rd_data, rd_len, CHUNKSZ);
1105 
1106 			puts("OK\n");
1107 		}
1108 	} else {
1109 		*initrd_start = 0;
1110 		*initrd_end = 0;
1111 	}
1112 	debug("   ramdisk load start = 0x%08lx, ramdisk load end = 0x%08lx\n",
1113 			*initrd_start, *initrd_end);
1114 
1115 	return 0;
1116 
1117 error:
1118 	return -1;
1119 }
1120 #endif /* CONFIG_SYS_BOOT_RAMDISK_HIGH */
1121 
1122 #ifdef CONFIG_OF_LIBFDT
1123 static void fdt_error(const char *msg)
1124 {
1125 	puts("ERROR: ");
1126 	puts(msg);
1127 	puts(" - must RESET the board to recover.\n");
1128 }
1129 
1130 static const image_header_t *image_get_fdt(ulong fdt_addr)
1131 {
1132 	const image_header_t *fdt_hdr = (const image_header_t *)fdt_addr;
1133 
1134 	image_print_contents(fdt_hdr);
1135 
1136 	puts("   Verifying Checksum ... ");
1137 	if (!image_check_hcrc(fdt_hdr)) {
1138 		fdt_error("fdt header checksum invalid");
1139 		return NULL;
1140 	}
1141 
1142 	if (!image_check_dcrc(fdt_hdr)) {
1143 		fdt_error("fdt checksum invalid");
1144 		return NULL;
1145 	}
1146 	puts("OK\n");
1147 
1148 	if (!image_check_type(fdt_hdr, IH_TYPE_FLATDT)) {
1149 		fdt_error("uImage is not a fdt");
1150 		return NULL;
1151 	}
1152 	if (image_get_comp(fdt_hdr) != IH_COMP_NONE) {
1153 		fdt_error("uImage is compressed");
1154 		return NULL;
1155 	}
1156 	if (fdt_check_header((char *)image_get_data(fdt_hdr)) != 0) {
1157 		fdt_error("uImage data is not a fdt");
1158 		return NULL;
1159 	}
1160 	return fdt_hdr;
1161 }
1162 
1163 /**
1164  * fit_check_fdt - verify FIT format FDT subimage
1165  * @fit_hdr: pointer to the FIT  header
1166  * fdt_noffset: FDT subimage node offset within FIT image
1167  * @verify: data CRC verification flag
1168  *
1169  * fit_check_fdt() verifies integrity of the FDT subimage and from
1170  * specified FIT image.
1171  *
1172  * returns:
1173  *     1, on success
1174  *     0, on failure
1175  */
1176 #if defined(CONFIG_FIT)
1177 static int fit_check_fdt(const void *fit, int fdt_noffset, int verify)
1178 {
1179 	fit_image_print(fit, fdt_noffset, "   ");
1180 
1181 	if (verify) {
1182 		puts("   Verifying Hash Integrity ... ");
1183 		if (!fit_image_check_hashes(fit, fdt_noffset)) {
1184 			fdt_error("Bad Data Hash");
1185 			return 0;
1186 		}
1187 		puts("OK\n");
1188 	}
1189 
1190 	if (!fit_image_check_type(fit, fdt_noffset, IH_TYPE_FLATDT)) {
1191 		fdt_error("Not a FDT image");
1192 		return 0;
1193 	}
1194 
1195 	if (!fit_image_check_comp(fit, fdt_noffset, IH_COMP_NONE)) {
1196 		fdt_error("FDT image is compressed");
1197 		return 0;
1198 	}
1199 
1200 	return 1;
1201 }
1202 #endif /* CONFIG_FIT */
1203 
1204 #ifndef CONFIG_SYS_FDT_PAD
1205 #define CONFIG_SYS_FDT_PAD 0x3000
1206 #endif
1207 
1208 #if defined(CONFIG_OF_LIBFDT)
1209 /**
1210  * boot_fdt_add_mem_rsv_regions - Mark the memreserve sections as unusable
1211  * @lmb: pointer to lmb handle, will be used for memory mgmt
1212  * @fdt_blob: pointer to fdt blob base address
1213  *
1214  * Adds the memreserve regions in the dtb to the lmb block.  Adding the
1215  * memreserve regions prevents u-boot from using them to store the initrd
1216  * or the fdt blob.
1217  */
1218 void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob)
1219 {
1220 	uint64_t addr, size;
1221 	int i, total;
1222 
1223 	if (fdt_check_header(fdt_blob) != 0)
1224 		return;
1225 
1226 	total = fdt_num_mem_rsv(fdt_blob);
1227 	for (i = 0; i < total; i++) {
1228 		if (fdt_get_mem_rsv(fdt_blob, i, &addr, &size) != 0)
1229 			continue;
1230 		printf("   reserving fdt memory region: addr=%llx size=%llx\n",
1231 			(unsigned long long)addr, (unsigned long long)size);
1232 		lmb_reserve(lmb, addr, size);
1233 	}
1234 }
1235 
1236 /**
1237  * boot_relocate_fdt - relocate flat device tree
1238  * @lmb: pointer to lmb handle, will be used for memory mgmt
1239  * @of_flat_tree: pointer to a char* variable, will hold fdt start address
1240  * @of_size: pointer to a ulong variable, will hold fdt length
1241  *
1242  * boot_relocate_fdt() allocates a region of memory within the bootmap and
1243  * relocates the of_flat_tree into that region, even if the fdt is already in
1244  * the bootmap.  It also expands the size of the fdt by CONFIG_SYS_FDT_PAD
1245  * bytes.
1246  *
1247  * of_flat_tree and of_size are set to final (after relocation) values
1248  *
1249  * returns:
1250  *      0 - success
1251  *      1 - failure
1252  */
1253 int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size)
1254 {
1255 	void	*fdt_blob = *of_flat_tree;
1256 	void	*of_start = 0;
1257 	char	*fdt_high;
1258 	ulong	of_len = 0;
1259 	int	err;
1260 	int	disable_relocation = 0;
1261 
1262 	/* nothing to do */
1263 	if (*of_size == 0)
1264 		return 0;
1265 
1266 	if (fdt_check_header(fdt_blob) != 0) {
1267 		fdt_error("image is not a fdt");
1268 		goto error;
1269 	}
1270 
1271 	/* position on a 4K boundary before the alloc_current */
1272 	/* Pad the FDT by a specified amount */
1273 	of_len = *of_size + CONFIG_SYS_FDT_PAD;
1274 
1275 	/* If fdt_high is set use it to select the relocation address */
1276 	fdt_high = getenv("fdt_high");
1277 	if (fdt_high) {
1278 		void *desired_addr = (void *)simple_strtoul(fdt_high, NULL, 16);
1279 
1280 		if (((ulong) desired_addr) == ~0UL) {
1281 			/* All ones means use fdt in place */
1282 			desired_addr = fdt_blob;
1283 			disable_relocation = 1;
1284 		}
1285 		if (desired_addr) {
1286 			of_start =
1287 			    (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000,
1288 							   ((ulong)
1289 							    desired_addr)
1290 							   + of_len);
1291 			if (desired_addr && of_start != desired_addr) {
1292 				puts("Failed using fdt_high value for Device Tree");
1293 				goto error;
1294 			}
1295 		} else {
1296 			of_start =
1297 			    (void *)(ulong) lmb_alloc(lmb, of_len, 0x1000);
1298 		}
1299 	} else {
1300 		of_start =
1301 		    (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000,
1302 						   getenv_bootm_mapsize()
1303 						   + getenv_bootm_low());
1304 	}
1305 
1306 	if (of_start == 0) {
1307 		puts("device tree - allocation error\n");
1308 		goto error;
1309 	}
1310 
1311 	if (disable_relocation) {
1312 		/* We assume there is space after the existing fdt to use for padding */
1313 		fdt_set_totalsize(of_start, of_len);
1314 		printf("   Using Device Tree in place at %p, end %p\n",
1315 		       of_start, of_start + of_len - 1);
1316 	} else {
1317 		debug("## device tree at %p ... %p (len=%ld [0x%lX])\n",
1318 			fdt_blob, fdt_blob + *of_size - 1, of_len, of_len);
1319 
1320 		printf("   Loading Device Tree to %p, end %p ... ",
1321 			of_start, of_start + of_len - 1);
1322 
1323 		err = fdt_open_into(fdt_blob, of_start, of_len);
1324 		if (err != 0) {
1325 			fdt_error("fdt move failed");
1326 			goto error;
1327 		}
1328 		puts("OK\n");
1329 	}
1330 
1331 	*of_flat_tree = of_start;
1332 	*of_size = of_len;
1333 
1334 	set_working_fdt_addr(*of_flat_tree);
1335 	return 0;
1336 
1337 error:
1338 	return 1;
1339 }
1340 #endif /* CONFIG_OF_LIBFDT */
1341 
1342 /**
1343  * boot_get_fdt - main fdt handling routine
1344  * @argc: command argument count
1345  * @argv: command argument list
1346  * @images: pointer to the bootm images structure
1347  * @of_flat_tree: pointer to a char* variable, will hold fdt start address
1348  * @of_size: pointer to a ulong variable, will hold fdt length
1349  *
1350  * boot_get_fdt() is responsible for finding a valid flat device tree image.
1351  * Curently supported are the following ramdisk sources:
1352  *      - multicomponent kernel/ramdisk image,
1353  *      - commandline provided address of decicated ramdisk image.
1354  *
1355  * returns:
1356  *     0, if fdt image was found and valid, or skipped
1357  *     of_flat_tree and of_size are set to fdt start address and length if
1358  *     fdt image is found and valid
1359  *
1360  *     1, if fdt image is found but corrupted
1361  *     of_flat_tree and of_size are set to 0 if no fdt exists
1362  */
1363 int boot_get_fdt(int flag, int argc, char * const argv[],
1364 		bootm_headers_t *images, char **of_flat_tree, ulong *of_size)
1365 {
1366 	const image_header_t *fdt_hdr;
1367 	ulong		fdt_addr;
1368 	char		*fdt_blob = NULL;
1369 	ulong		image_start, image_end;
1370 	ulong		load_start, load_end;
1371 #if defined(CONFIG_FIT)
1372 	void		*fit_hdr;
1373 	const char	*fit_uname_config = NULL;
1374 	const char	*fit_uname_fdt = NULL;
1375 	ulong		default_addr;
1376 	int		cfg_noffset;
1377 	int		fdt_noffset;
1378 	const void	*data;
1379 	size_t		size;
1380 #endif
1381 
1382 	*of_flat_tree = NULL;
1383 	*of_size = 0;
1384 
1385 	if (argc > 3 || genimg_has_config(images)) {
1386 #if defined(CONFIG_FIT)
1387 		if (argc > 3) {
1388 			/*
1389 			 * If the FDT blob comes from the FIT image and the
1390 			 * FIT image address is omitted in the command line
1391 			 * argument, try to use ramdisk or os FIT image
1392 			 * address or default load address.
1393 			 */
1394 			if (images->fit_uname_rd)
1395 				default_addr = (ulong)images->fit_hdr_rd;
1396 			else if (images->fit_uname_os)
1397 				default_addr = (ulong)images->fit_hdr_os;
1398 			else
1399 				default_addr = load_addr;
1400 
1401 			if (fit_parse_conf(argv[3], default_addr,
1402 						&fdt_addr, &fit_uname_config)) {
1403 				debug("*  fdt: config '%s' from image at "
1404 						"0x%08lx\n",
1405 						fit_uname_config, fdt_addr);
1406 			} else if (fit_parse_subimage(argv[3], default_addr,
1407 						&fdt_addr, &fit_uname_fdt)) {
1408 				debug("*  fdt: subimage '%s' from image at "
1409 						"0x%08lx\n",
1410 						fit_uname_fdt, fdt_addr);
1411 			} else
1412 #endif
1413 			{
1414 				fdt_addr = simple_strtoul(argv[3], NULL, 16);
1415 				debug("*  fdt: cmdline image address = "
1416 						"0x%08lx\n",
1417 						fdt_addr);
1418 			}
1419 #if defined(CONFIG_FIT)
1420 		} else {
1421 			/* use FIT configuration provided in first bootm
1422 			 * command argument
1423 			 */
1424 			fdt_addr = (ulong)images->fit_hdr_os;
1425 			fit_uname_config = images->fit_uname_cfg;
1426 			debug("*  fdt: using config '%s' from image "
1427 					"at 0x%08lx\n",
1428 					fit_uname_config, fdt_addr);
1429 
1430 			/*
1431 			 * Check whether configuration has FDT blob defined,
1432 			 * if not quit silently.
1433 			 */
1434 			fit_hdr = (void *)fdt_addr;
1435 			cfg_noffset = fit_conf_get_node(fit_hdr,
1436 					fit_uname_config);
1437 			if (cfg_noffset < 0) {
1438 				debug("*  fdt: no such config\n");
1439 				return 0;
1440 			}
1441 
1442 			fdt_noffset = fit_conf_get_fdt_node(fit_hdr,
1443 					cfg_noffset);
1444 			if (fdt_noffset < 0) {
1445 				debug("*  fdt: no fdt in config\n");
1446 				return 0;
1447 			}
1448 		}
1449 #endif
1450 
1451 		debug("## Checking for 'FDT'/'FDT Image' at %08lx\n",
1452 				fdt_addr);
1453 
1454 		/* copy from dataflash if needed */
1455 		fdt_addr = genimg_get_image(fdt_addr);
1456 
1457 		/*
1458 		 * Check if there is an FDT image at the
1459 		 * address provided in the second bootm argument
1460 		 * check image type, for FIT images get a FIT node.
1461 		 */
1462 		switch (genimg_get_format((void *)fdt_addr)) {
1463 		case IMAGE_FORMAT_LEGACY:
1464 			/* verify fdt_addr points to a valid image header */
1465 			printf("## Flattened Device Tree from Legacy Image "
1466 					"at %08lx\n",
1467 					fdt_addr);
1468 			fdt_hdr = image_get_fdt(fdt_addr);
1469 			if (!fdt_hdr)
1470 				goto error;
1471 
1472 			/*
1473 			 * move image data to the load address,
1474 			 * make sure we don't overwrite initial image
1475 			 */
1476 			image_start = (ulong)fdt_hdr;
1477 			image_end = image_get_image_end(fdt_hdr);
1478 
1479 			load_start = image_get_load(fdt_hdr);
1480 			load_end = load_start + image_get_data_size(fdt_hdr);
1481 
1482 			if ((load_start < image_end) && (load_end > image_start)) {
1483 				fdt_error("fdt overwritten");
1484 				goto error;
1485 			}
1486 
1487 			debug("   Loading FDT from 0x%08lx to 0x%08lx\n",
1488 					image_get_data(fdt_hdr), load_start);
1489 
1490 			memmove((void *)load_start,
1491 					(void *)image_get_data(fdt_hdr),
1492 					image_get_data_size(fdt_hdr));
1493 
1494 			fdt_blob = (char *)load_start;
1495 			break;
1496 		case IMAGE_FORMAT_FIT:
1497 			/*
1498 			 * This case will catch both: new uImage format
1499 			 * (libfdt based) and raw FDT blob (also libfdt
1500 			 * based).
1501 			 */
1502 #if defined(CONFIG_FIT)
1503 			/* check FDT blob vs FIT blob */
1504 			if (fit_check_format((const void *)fdt_addr)) {
1505 				/*
1506 				 * FIT image
1507 				 */
1508 				fit_hdr = (void *)fdt_addr;
1509 				printf("## Flattened Device Tree from FIT "
1510 						"Image at %08lx\n",
1511 						fdt_addr);
1512 
1513 				if (!fit_uname_fdt) {
1514 					/*
1515 					 * no FDT blob image node unit name,
1516 					 * try to get config node first. If
1517 					 * config unit node name is NULL
1518 					 * fit_conf_get_node() will try to
1519 					 * find default config node
1520 					 */
1521 					cfg_noffset = fit_conf_get_node(fit_hdr,
1522 							fit_uname_config);
1523 
1524 					if (cfg_noffset < 0) {
1525 						fdt_error("Could not find "
1526 							    "configuration "
1527 							    "node\n");
1528 						goto error;
1529 					}
1530 
1531 					fit_uname_config = fdt_get_name(fit_hdr,
1532 							cfg_noffset, NULL);
1533 					printf("   Using '%s' configuration\n",
1534 							fit_uname_config);
1535 
1536 					fdt_noffset = fit_conf_get_fdt_node(
1537 							fit_hdr,
1538 							cfg_noffset);
1539 					fit_uname_fdt = fit_get_name(fit_hdr,
1540 							fdt_noffset, NULL);
1541 				} else {
1542 					/* get FDT component image node offset */
1543 					fdt_noffset = fit_image_get_node(
1544 								fit_hdr,
1545 								fit_uname_fdt);
1546 				}
1547 				if (fdt_noffset < 0) {
1548 					fdt_error("Could not find subimage "
1549 							"node\n");
1550 					goto error;
1551 				}
1552 
1553 				printf("   Trying '%s' FDT blob subimage\n",
1554 						fit_uname_fdt);
1555 
1556 				if (!fit_check_fdt(fit_hdr, fdt_noffset,
1557 							images->verify))
1558 					goto error;
1559 
1560 				/* get ramdisk image data address and length */
1561 				if (fit_image_get_data(fit_hdr, fdt_noffset,
1562 							&data, &size)) {
1563 					fdt_error("Could not find FDT "
1564 							"subimage data");
1565 					goto error;
1566 				}
1567 
1568 				/* verift that image data is a proper FDT blob */
1569 				if (fdt_check_header((char *)data) != 0) {
1570 					fdt_error("Subimage data is not a FTD");
1571 					goto error;
1572 				}
1573 
1574 				/*
1575 				 * move image data to the load address,
1576 				 * make sure we don't overwrite initial image
1577 				 */
1578 				image_start = (ulong)fit_hdr;
1579 				image_end = fit_get_end(fit_hdr);
1580 
1581 				if (fit_image_get_load(fit_hdr, fdt_noffset,
1582 							&load_start) == 0) {
1583 					load_end = load_start + size;
1584 
1585 					if ((load_start < image_end) &&
1586 							(load_end > image_start)) {
1587 						fdt_error("FDT overwritten");
1588 						goto error;
1589 					}
1590 
1591 					printf("   Loading FDT from 0x%08lx "
1592 							"to 0x%08lx\n",
1593 							(ulong)data,
1594 							load_start);
1595 
1596 					memmove((void *)load_start,
1597 							(void *)data, size);
1598 
1599 					fdt_blob = (char *)load_start;
1600 				} else {
1601 					fdt_blob = (char *)data;
1602 				}
1603 
1604 				images->fit_hdr_fdt = fit_hdr;
1605 				images->fit_uname_fdt = fit_uname_fdt;
1606 				images->fit_noffset_fdt = fdt_noffset;
1607 				break;
1608 			} else
1609 #endif
1610 			{
1611 				/*
1612 				 * FDT blob
1613 				 */
1614 				fdt_blob = (char *)fdt_addr;
1615 				debug("*  fdt: raw FDT blob\n");
1616 				printf("## Flattened Device Tree blob at "
1617 					"%08lx\n", (long)fdt_blob);
1618 			}
1619 			break;
1620 		default:
1621 			puts("ERROR: Did not find a cmdline Flattened Device "
1622 				"Tree\n");
1623 			goto error;
1624 		}
1625 
1626 		printf("   Booting using the fdt blob at 0x%p\n", fdt_blob);
1627 
1628 	} else if (images->legacy_hdr_valid &&
1629 			image_check_type(&images->legacy_hdr_os_copy,
1630 						IH_TYPE_MULTI)) {
1631 
1632 		ulong fdt_data, fdt_len;
1633 
1634 		/*
1635 		 * Now check if we have a legacy multi-component image,
1636 		 * get second entry data start address and len.
1637 		 */
1638 		printf("## Flattened Device Tree from multi "
1639 			"component Image at %08lX\n",
1640 			(ulong)images->legacy_hdr_os);
1641 
1642 		image_multi_getimg(images->legacy_hdr_os, 2, &fdt_data,
1643 					&fdt_len);
1644 		if (fdt_len) {
1645 
1646 			fdt_blob = (char *)fdt_data;
1647 			printf("   Booting using the fdt at 0x%p\n", fdt_blob);
1648 
1649 			if (fdt_check_header(fdt_blob) != 0) {
1650 				fdt_error("image is not a fdt");
1651 				goto error;
1652 			}
1653 
1654 			if (fdt_totalsize(fdt_blob) != fdt_len) {
1655 				fdt_error("fdt size != image size");
1656 				goto error;
1657 			}
1658 		} else {
1659 			debug("## No Flattened Device Tree\n");
1660 			return 0;
1661 		}
1662 	} else {
1663 		debug("## No Flattened Device Tree\n");
1664 		return 0;
1665 	}
1666 
1667 	*of_flat_tree = fdt_blob;
1668 	*of_size = fdt_totalsize(fdt_blob);
1669 	debug("   of_flat_tree at 0x%08lx size 0x%08lx\n",
1670 			(ulong)*of_flat_tree, *of_size);
1671 
1672 	return 0;
1673 
1674 error:
1675 	*of_flat_tree = 0;
1676 	*of_size = 0;
1677 	return 1;
1678 }
1679 #endif /* CONFIG_OF_LIBFDT */
1680 
1681 #ifdef CONFIG_SYS_BOOT_GET_CMDLINE
1682 /**
1683  * boot_get_cmdline - allocate and initialize kernel cmdline
1684  * @lmb: pointer to lmb handle, will be used for memory mgmt
1685  * @cmd_start: pointer to a ulong variable, will hold cmdline start
1686  * @cmd_end: pointer to a ulong variable, will hold cmdline end
1687  *
1688  * boot_get_cmdline() allocates space for kernel command line below
1689  * BOOTMAPSZ + getenv_bootm_low() address. If "bootargs" U-boot environemnt
1690  * variable is present its contents is copied to allocated kernel
1691  * command line.
1692  *
1693  * returns:
1694  *      0 - success
1695  *     -1 - failure
1696  */
1697 int boot_get_cmdline(struct lmb *lmb, ulong *cmd_start, ulong *cmd_end)
1698 {
1699 	char *cmdline;
1700 	char *s;
1701 
1702 	cmdline = (char *)(ulong)lmb_alloc_base(lmb, CONFIG_SYS_BARGSIZE, 0xf,
1703 				getenv_bootm_mapsize() + getenv_bootm_low());
1704 
1705 	if (cmdline == NULL)
1706 		return -1;
1707 
1708 	if ((s = getenv("bootargs")) == NULL)
1709 		s = "";
1710 
1711 	strcpy(cmdline, s);
1712 
1713 	*cmd_start = (ulong) & cmdline[0];
1714 	*cmd_end = *cmd_start + strlen(cmdline);
1715 
1716 	debug("## cmdline at 0x%08lx ... 0x%08lx\n", *cmd_start, *cmd_end);
1717 
1718 	return 0;
1719 }
1720 #endif /* CONFIG_SYS_BOOT_GET_CMDLINE */
1721 
1722 #ifdef CONFIG_SYS_BOOT_GET_KBD
1723 /**
1724  * boot_get_kbd - allocate and initialize kernel copy of board info
1725  * @lmb: pointer to lmb handle, will be used for memory mgmt
1726  * @kbd: double pointer to board info data
1727  *
1728  * boot_get_kbd() allocates space for kernel copy of board info data below
1729  * BOOTMAPSZ + getenv_bootm_low() address and kernel board info is initialized
1730  * with the current u-boot board info data.
1731  *
1732  * returns:
1733  *      0 - success
1734  *     -1 - failure
1735  */
1736 int boot_get_kbd(struct lmb *lmb, bd_t **kbd)
1737 {
1738 	*kbd = (bd_t *)(ulong)lmb_alloc_base(lmb, sizeof(bd_t), 0xf,
1739 				getenv_bootm_mapsize() + getenv_bootm_low());
1740 	if (*kbd == NULL)
1741 		return -1;
1742 
1743 	**kbd = *(gd->bd);
1744 
1745 	debug("## kernel board info at 0x%08lx\n", (ulong)*kbd);
1746 
1747 #if defined(DEBUG) && defined(CONFIG_CMD_BDI)
1748 	do_bdinfo(NULL, 0, 0, NULL);
1749 #endif
1750 
1751 	return 0;
1752 }
1753 #endif /* CONFIG_SYS_BOOT_GET_KBD */
1754 #endif /* !USE_HOSTCC */
1755 
1756 #if defined(CONFIG_FIT)
1757 /*****************************************************************************/
1758 /* New uImage format routines */
1759 /*****************************************************************************/
1760 #ifndef USE_HOSTCC
1761 static int fit_parse_spec(const char *spec, char sepc, ulong addr_curr,
1762 		ulong *addr, const char **name)
1763 {
1764 	const char *sep;
1765 
1766 	*addr = addr_curr;
1767 	*name = NULL;
1768 
1769 	sep = strchr(spec, sepc);
1770 	if (sep) {
1771 		if (sep - spec > 0)
1772 			*addr = simple_strtoul(spec, NULL, 16);
1773 
1774 		*name = sep + 1;
1775 		return 1;
1776 	}
1777 
1778 	return 0;
1779 }
1780 
1781 /**
1782  * fit_parse_conf - parse FIT configuration spec
1783  * @spec: input string, containing configuration spec
1784  * @add_curr: current image address (to be used as a possible default)
1785  * @addr: pointer to a ulong variable, will hold FIT image address of a given
1786  * configuration
1787  * @conf_name double pointer to a char, will hold pointer to a configuration
1788  * unit name
1789  *
1790  * fit_parse_conf() expects configuration spec in the for of [<addr>]#<conf>,
1791  * where <addr> is a FIT image address that contains configuration
1792  * with a <conf> unit name.
1793  *
1794  * Address part is optional, and if omitted default add_curr will
1795  * be used instead.
1796  *
1797  * returns:
1798  *     1 if spec is a valid configuration string,
1799  *     addr and conf_name are set accordingly
1800  *     0 otherwise
1801  */
1802 inline int fit_parse_conf(const char *spec, ulong addr_curr,
1803 		ulong *addr, const char **conf_name)
1804 {
1805 	return fit_parse_spec(spec, '#', addr_curr, addr, conf_name);
1806 }
1807 
1808 /**
1809  * fit_parse_subimage - parse FIT subimage spec
1810  * @spec: input string, containing subimage spec
1811  * @add_curr: current image address (to be used as a possible default)
1812  * @addr: pointer to a ulong variable, will hold FIT image address of a given
1813  * subimage
1814  * @image_name: double pointer to a char, will hold pointer to a subimage name
1815  *
1816  * fit_parse_subimage() expects subimage spec in the for of
1817  * [<addr>]:<subimage>, where <addr> is a FIT image address that contains
1818  * subimage with a <subimg> unit name.
1819  *
1820  * Address part is optional, and if omitted default add_curr will
1821  * be used instead.
1822  *
1823  * returns:
1824  *     1 if spec is a valid subimage string,
1825  *     addr and image_name are set accordingly
1826  *     0 otherwise
1827  */
1828 inline int fit_parse_subimage(const char *spec, ulong addr_curr,
1829 		ulong *addr, const char **image_name)
1830 {
1831 	return fit_parse_spec(spec, ':', addr_curr, addr, image_name);
1832 }
1833 #endif /* !USE_HOSTCC */
1834 
1835 static void fit_get_debug(const void *fit, int noffset,
1836 		char *prop_name, int err)
1837 {
1838 	debug("Can't get '%s' property from FIT 0x%08lx, "
1839 		"node: offset %d, name %s (%s)\n",
1840 		prop_name, (ulong)fit, noffset,
1841 		fit_get_name(fit, noffset, NULL),
1842 		fdt_strerror(err));
1843 }
1844 
1845 /**
1846  * fit_print_contents - prints out the contents of the FIT format image
1847  * @fit: pointer to the FIT format image header
1848  * @p: pointer to prefix string
1849  *
1850  * fit_print_contents() formats a multi line FIT image contents description.
1851  * The routine prints out FIT image properties (root node level) follwed by
1852  * the details of each component image.
1853  *
1854  * returns:
1855  *     no returned results
1856  */
1857 void fit_print_contents(const void *fit)
1858 {
1859 	char *desc;
1860 	char *uname;
1861 	int images_noffset;
1862 	int confs_noffset;
1863 	int noffset;
1864 	int ndepth;
1865 	int count = 0;
1866 	int ret;
1867 	const char *p;
1868 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
1869 	time_t timestamp;
1870 #endif
1871 
1872 #ifdef USE_HOSTCC
1873 	p = "";
1874 #else
1875 	p = "   ";
1876 #endif
1877 
1878 	/* Root node properties */
1879 	ret = fit_get_desc(fit, 0, &desc);
1880 	printf("%sFIT description: ", p);
1881 	if (ret)
1882 		printf("unavailable\n");
1883 	else
1884 		printf("%s\n", desc);
1885 
1886 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
1887 	ret = fit_get_timestamp(fit, 0, &timestamp);
1888 	printf("%sCreated:         ", p);
1889 	if (ret)
1890 		printf("unavailable\n");
1891 	else
1892 		genimg_print_time(timestamp);
1893 #endif
1894 
1895 	/* Find images parent node offset */
1896 	images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
1897 	if (images_noffset < 0) {
1898 		printf("Can't find images parent node '%s' (%s)\n",
1899 			FIT_IMAGES_PATH, fdt_strerror(images_noffset));
1900 		return;
1901 	}
1902 
1903 	/* Process its subnodes, print out component images details */
1904 	for (ndepth = 0, count = 0,
1905 		noffset = fdt_next_node(fit, images_noffset, &ndepth);
1906 	     (noffset >= 0) && (ndepth > 0);
1907 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
1908 		if (ndepth == 1) {
1909 			/*
1910 			 * Direct child node of the images parent node,
1911 			 * i.e. component image node.
1912 			 */
1913 			printf("%s Image %u (%s)\n", p, count++,
1914 					fit_get_name(fit, noffset, NULL));
1915 
1916 			fit_image_print(fit, noffset, p);
1917 		}
1918 	}
1919 
1920 	/* Find configurations parent node offset */
1921 	confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH);
1922 	if (confs_noffset < 0) {
1923 		debug("Can't get configurations parent node '%s' (%s)\n",
1924 			FIT_CONFS_PATH, fdt_strerror(confs_noffset));
1925 		return;
1926 	}
1927 
1928 	/* get default configuration unit name from default property */
1929 	uname = (char *)fdt_getprop(fit, noffset, FIT_DEFAULT_PROP, NULL);
1930 	if (uname)
1931 		printf("%s Default Configuration: '%s'\n", p, uname);
1932 
1933 	/* Process its subnodes, print out configurations details */
1934 	for (ndepth = 0, count = 0,
1935 		noffset = fdt_next_node(fit, confs_noffset, &ndepth);
1936 	     (noffset >= 0) && (ndepth > 0);
1937 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
1938 		if (ndepth == 1) {
1939 			/*
1940 			 * Direct child node of the configurations parent node,
1941 			 * i.e. configuration node.
1942 			 */
1943 			printf("%s Configuration %u (%s)\n", p, count++,
1944 					fit_get_name(fit, noffset, NULL));
1945 
1946 			fit_conf_print(fit, noffset, p);
1947 		}
1948 	}
1949 }
1950 
1951 /**
1952  * fit_image_print - prints out the FIT component image details
1953  * @fit: pointer to the FIT format image header
1954  * @image_noffset: offset of the component image node
1955  * @p: pointer to prefix string
1956  *
1957  * fit_image_print() lists all mandatory properies for the processed component
1958  * image. If present, hash nodes are printed out as well. Load
1959  * address for images of type firmware is also printed out. Since the load
1960  * address is not mandatory for firmware images, it will be output as
1961  * "unavailable" when not present.
1962  *
1963  * returns:
1964  *     no returned results
1965  */
1966 void fit_image_print(const void *fit, int image_noffset, const char *p)
1967 {
1968 	char *desc;
1969 	uint8_t type, arch, os, comp;
1970 	size_t size;
1971 	ulong load, entry;
1972 	const void *data;
1973 	int noffset;
1974 	int ndepth;
1975 	int ret;
1976 
1977 	/* Mandatory properties */
1978 	ret = fit_get_desc(fit, image_noffset, &desc);
1979 	printf("%s  Description:  ", p);
1980 	if (ret)
1981 		printf("unavailable\n");
1982 	else
1983 		printf("%s\n", desc);
1984 
1985 	fit_image_get_type(fit, image_noffset, &type);
1986 	printf("%s  Type:         %s\n", p, genimg_get_type_name(type));
1987 
1988 	fit_image_get_comp(fit, image_noffset, &comp);
1989 	printf("%s  Compression:  %s\n", p, genimg_get_comp_name(comp));
1990 
1991 	ret = fit_image_get_data(fit, image_noffset, &data, &size);
1992 
1993 #ifndef USE_HOSTCC
1994 	printf("%s  Data Start:   ", p);
1995 	if (ret)
1996 		printf("unavailable\n");
1997 	else
1998 		printf("0x%08lx\n", (ulong)data);
1999 #endif
2000 
2001 	printf("%s  Data Size:    ", p);
2002 	if (ret)
2003 		printf("unavailable\n");
2004 	else
2005 		genimg_print_size(size);
2006 
2007 	/* Remaining, type dependent properties */
2008 	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
2009 	    (type == IH_TYPE_RAMDISK) || (type == IH_TYPE_FIRMWARE) ||
2010 	    (type == IH_TYPE_FLATDT)) {
2011 		fit_image_get_arch(fit, image_noffset, &arch);
2012 		printf("%s  Architecture: %s\n", p, genimg_get_arch_name(arch));
2013 	}
2014 
2015 	if (type == IH_TYPE_KERNEL) {
2016 		fit_image_get_os(fit, image_noffset, &os);
2017 		printf("%s  OS:           %s\n", p, genimg_get_os_name(os));
2018 	}
2019 
2020 	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
2021 		(type == IH_TYPE_FIRMWARE)) {
2022 		ret = fit_image_get_load(fit, image_noffset, &load);
2023 		printf("%s  Load Address: ", p);
2024 		if (ret)
2025 			printf("unavailable\n");
2026 		else
2027 			printf("0x%08lx\n", load);
2028 	}
2029 
2030 	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE)) {
2031 		fit_image_get_entry(fit, image_noffset, &entry);
2032 		printf("%s  Entry Point:  ", p);
2033 		if (ret)
2034 			printf("unavailable\n");
2035 		else
2036 			printf("0x%08lx\n", entry);
2037 	}
2038 
2039 	/* Process all hash subnodes of the component image node */
2040 	for (ndepth = 0, noffset = fdt_next_node(fit, image_noffset, &ndepth);
2041 	     (noffset >= 0) && (ndepth > 0);
2042 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
2043 		if (ndepth == 1) {
2044 			/* Direct child node of the component image node */
2045 			fit_image_print_hash(fit, noffset, p);
2046 		}
2047 	}
2048 }
2049 
2050 /**
2051  * fit_image_print_hash - prints out the hash node details
2052  * @fit: pointer to the FIT format image header
2053  * @noffset: offset of the hash node
2054  * @p: pointer to prefix string
2055  *
2056  * fit_image_print_hash() lists properies for the processed hash node
2057  *
2058  * returns:
2059  *     no returned results
2060  */
2061 void fit_image_print_hash(const void *fit, int noffset, const char *p)
2062 {
2063 	char *algo;
2064 	uint8_t *value;
2065 	int value_len;
2066 	int i, ret;
2067 
2068 	/*
2069 	 * Check subnode name, must be equal to "hash".
2070 	 * Multiple hash nodes require unique unit node
2071 	 * names, e.g. hash@1, hash@2, etc.
2072 	 */
2073 	if (strncmp(fit_get_name(fit, noffset, NULL),
2074 			FIT_HASH_NODENAME,
2075 			strlen(FIT_HASH_NODENAME)) != 0)
2076 		return;
2077 
2078 	debug("%s  Hash node:    '%s'\n", p,
2079 			fit_get_name(fit, noffset, NULL));
2080 
2081 	printf("%s  Hash algo:    ", p);
2082 	if (fit_image_hash_get_algo(fit, noffset, &algo)) {
2083 		printf("invalid/unsupported\n");
2084 		return;
2085 	}
2086 	printf("%s\n", algo);
2087 
2088 	ret = fit_image_hash_get_value(fit, noffset, &value,
2089 					&value_len);
2090 	printf("%s  Hash value:   ", p);
2091 	if (ret) {
2092 		printf("unavailable\n");
2093 	} else {
2094 		for (i = 0; i < value_len; i++)
2095 			printf("%02x", value[i]);
2096 		printf("\n");
2097 	}
2098 
2099 	debug("%s  Hash len:     %d\n", p, value_len);
2100 }
2101 
2102 /**
2103  * fit_get_desc - get node description property
2104  * @fit: pointer to the FIT format image header
2105  * @noffset: node offset
2106  * @desc: double pointer to the char, will hold pointer to the descrption
2107  *
2108  * fit_get_desc() reads description property from a given node, if
2109  * description is found pointer to it is returened in third call argument.
2110  *
2111  * returns:
2112  *     0, on success
2113  *     -1, on failure
2114  */
2115 int fit_get_desc(const void *fit, int noffset, char **desc)
2116 {
2117 	int len;
2118 
2119 	*desc = (char *)fdt_getprop(fit, noffset, FIT_DESC_PROP, &len);
2120 	if (*desc == NULL) {
2121 		fit_get_debug(fit, noffset, FIT_DESC_PROP, len);
2122 		return -1;
2123 	}
2124 
2125 	return 0;
2126 }
2127 
2128 /**
2129  * fit_get_timestamp - get node timestamp property
2130  * @fit: pointer to the FIT format image header
2131  * @noffset: node offset
2132  * @timestamp: pointer to the time_t, will hold read timestamp
2133  *
2134  * fit_get_timestamp() reads timestamp poperty from given node, if timestamp
2135  * is found and has a correct size its value is retured in third call
2136  * argument.
2137  *
2138  * returns:
2139  *     0, on success
2140  *     -1, on property read failure
2141  *     -2, on wrong timestamp size
2142  */
2143 int fit_get_timestamp(const void *fit, int noffset, time_t *timestamp)
2144 {
2145 	int len;
2146 	const void *data;
2147 
2148 	data = fdt_getprop(fit, noffset, FIT_TIMESTAMP_PROP, &len);
2149 	if (data == NULL) {
2150 		fit_get_debug(fit, noffset, FIT_TIMESTAMP_PROP, len);
2151 		return -1;
2152 	}
2153 	if (len != sizeof(uint32_t)) {
2154 		debug("FIT timestamp with incorrect size of (%u)\n", len);
2155 		return -2;
2156 	}
2157 
2158 	*timestamp = uimage_to_cpu(*((uint32_t *)data));
2159 	return 0;
2160 }
2161 
2162 /**
2163  * fit_image_get_node - get node offset for component image of a given unit name
2164  * @fit: pointer to the FIT format image header
2165  * @image_uname: component image node unit name
2166  *
2167  * fit_image_get_node() finds a component image (withing the '/images'
2168  * node) of a provided unit name. If image is found its node offset is
2169  * returned to the caller.
2170  *
2171  * returns:
2172  *     image node offset when found (>=0)
2173  *     negative number on failure (FDT_ERR_* code)
2174  */
2175 int fit_image_get_node(const void *fit, const char *image_uname)
2176 {
2177 	int noffset, images_noffset;
2178 
2179 	images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
2180 	if (images_noffset < 0) {
2181 		debug("Can't find images parent node '%s' (%s)\n",
2182 			FIT_IMAGES_PATH, fdt_strerror(images_noffset));
2183 		return images_noffset;
2184 	}
2185 
2186 	noffset = fdt_subnode_offset(fit, images_noffset, image_uname);
2187 	if (noffset < 0) {
2188 		debug("Can't get node offset for image unit name: '%s' (%s)\n",
2189 			image_uname, fdt_strerror(noffset));
2190 	}
2191 
2192 	return noffset;
2193 }
2194 
2195 /**
2196  * fit_image_get_os - get os id for a given component image node
2197  * @fit: pointer to the FIT format image header
2198  * @noffset: component image node offset
2199  * @os: pointer to the uint8_t, will hold os numeric id
2200  *
2201  * fit_image_get_os() finds os property in a given component image node.
2202  * If the property is found, its (string) value is translated to the numeric
2203  * id which is returned to the caller.
2204  *
2205  * returns:
2206  *     0, on success
2207  *     -1, on failure
2208  */
2209 int fit_image_get_os(const void *fit, int noffset, uint8_t *os)
2210 {
2211 	int len;
2212 	const void *data;
2213 
2214 	/* Get OS name from property data */
2215 	data = fdt_getprop(fit, noffset, FIT_OS_PROP, &len);
2216 	if (data == NULL) {
2217 		fit_get_debug(fit, noffset, FIT_OS_PROP, len);
2218 		*os = -1;
2219 		return -1;
2220 	}
2221 
2222 	/* Translate OS name to id */
2223 	*os = genimg_get_os_id(data);
2224 	return 0;
2225 }
2226 
2227 /**
2228  * fit_image_get_arch - get arch id for a given component image node
2229  * @fit: pointer to the FIT format image header
2230  * @noffset: component image node offset
2231  * @arch: pointer to the uint8_t, will hold arch numeric id
2232  *
2233  * fit_image_get_arch() finds arch property in a given component image node.
2234  * If the property is found, its (string) value is translated to the numeric
2235  * id which is returned to the caller.
2236  *
2237  * returns:
2238  *     0, on success
2239  *     -1, on failure
2240  */
2241 int fit_image_get_arch(const void *fit, int noffset, uint8_t *arch)
2242 {
2243 	int len;
2244 	const void *data;
2245 
2246 	/* Get architecture name from property data */
2247 	data = fdt_getprop(fit, noffset, FIT_ARCH_PROP, &len);
2248 	if (data == NULL) {
2249 		fit_get_debug(fit, noffset, FIT_ARCH_PROP, len);
2250 		*arch = -1;
2251 		return -1;
2252 	}
2253 
2254 	/* Translate architecture name to id */
2255 	*arch = genimg_get_arch_id(data);
2256 	return 0;
2257 }
2258 
2259 /**
2260  * fit_image_get_type - get type id for a given component image node
2261  * @fit: pointer to the FIT format image header
2262  * @noffset: component image node offset
2263  * @type: pointer to the uint8_t, will hold type numeric id
2264  *
2265  * fit_image_get_type() finds type property in a given component image node.
2266  * If the property is found, its (string) value is translated to the numeric
2267  * id which is returned to the caller.
2268  *
2269  * returns:
2270  *     0, on success
2271  *     -1, on failure
2272  */
2273 int fit_image_get_type(const void *fit, int noffset, uint8_t *type)
2274 {
2275 	int len;
2276 	const void *data;
2277 
2278 	/* Get image type name from property data */
2279 	data = fdt_getprop(fit, noffset, FIT_TYPE_PROP, &len);
2280 	if (data == NULL) {
2281 		fit_get_debug(fit, noffset, FIT_TYPE_PROP, len);
2282 		*type = -1;
2283 		return -1;
2284 	}
2285 
2286 	/* Translate image type name to id */
2287 	*type = genimg_get_type_id(data);
2288 	return 0;
2289 }
2290 
2291 /**
2292  * fit_image_get_comp - get comp id for a given component image node
2293  * @fit: pointer to the FIT format image header
2294  * @noffset: component image node offset
2295  * @comp: pointer to the uint8_t, will hold comp numeric id
2296  *
2297  * fit_image_get_comp() finds comp property in a given component image node.
2298  * If the property is found, its (string) value is translated to the numeric
2299  * id which is returned to the caller.
2300  *
2301  * returns:
2302  *     0, on success
2303  *     -1, on failure
2304  */
2305 int fit_image_get_comp(const void *fit, int noffset, uint8_t *comp)
2306 {
2307 	int len;
2308 	const void *data;
2309 
2310 	/* Get compression name from property data */
2311 	data = fdt_getprop(fit, noffset, FIT_COMP_PROP, &len);
2312 	if (data == NULL) {
2313 		fit_get_debug(fit, noffset, FIT_COMP_PROP, len);
2314 		*comp = -1;
2315 		return -1;
2316 	}
2317 
2318 	/* Translate compression name to id */
2319 	*comp = genimg_get_comp_id(data);
2320 	return 0;
2321 }
2322 
2323 /**
2324  * fit_image_get_load - get load address property for a given component image node
2325  * @fit: pointer to the FIT format image header
2326  * @noffset: component image node offset
2327  * @load: pointer to the uint32_t, will hold load address
2328  *
2329  * fit_image_get_load() finds load address property in a given component image node.
2330  * If the property is found, its value is returned to the caller.
2331  *
2332  * returns:
2333  *     0, on success
2334  *     -1, on failure
2335  */
2336 int fit_image_get_load(const void *fit, int noffset, ulong *load)
2337 {
2338 	int len;
2339 	const uint32_t *data;
2340 
2341 	data = fdt_getprop(fit, noffset, FIT_LOAD_PROP, &len);
2342 	if (data == NULL) {
2343 		fit_get_debug(fit, noffset, FIT_LOAD_PROP, len);
2344 		return -1;
2345 	}
2346 
2347 	*load = uimage_to_cpu(*data);
2348 	return 0;
2349 }
2350 
2351 /**
2352  * fit_image_get_entry - get entry point address property for a given component image node
2353  * @fit: pointer to the FIT format image header
2354  * @noffset: component image node offset
2355  * @entry: pointer to the uint32_t, will hold entry point address
2356  *
2357  * fit_image_get_entry() finds entry point address property in a given component image node.
2358  * If the property is found, its value is returned to the caller.
2359  *
2360  * returns:
2361  *     0, on success
2362  *     -1, on failure
2363  */
2364 int fit_image_get_entry(const void *fit, int noffset, ulong *entry)
2365 {
2366 	int len;
2367 	const uint32_t *data;
2368 
2369 	data = fdt_getprop(fit, noffset, FIT_ENTRY_PROP, &len);
2370 	if (data == NULL) {
2371 		fit_get_debug(fit, noffset, FIT_ENTRY_PROP, len);
2372 		return -1;
2373 	}
2374 
2375 	*entry = uimage_to_cpu(*data);
2376 	return 0;
2377 }
2378 
2379 /**
2380  * fit_image_get_data - get data property and its size for a given component image node
2381  * @fit: pointer to the FIT format image header
2382  * @noffset: component image node offset
2383  * @data: double pointer to void, will hold data property's data address
2384  * @size: pointer to size_t, will hold data property's data size
2385  *
2386  * fit_image_get_data() finds data property in a given component image node.
2387  * If the property is found its data start address and size are returned to
2388  * the caller.
2389  *
2390  * returns:
2391  *     0, on success
2392  *     -1, on failure
2393  */
2394 int fit_image_get_data(const void *fit, int noffset,
2395 		const void **data, size_t *size)
2396 {
2397 	int len;
2398 
2399 	*data = fdt_getprop(fit, noffset, FIT_DATA_PROP, &len);
2400 	if (*data == NULL) {
2401 		fit_get_debug(fit, noffset, FIT_DATA_PROP, len);
2402 		*size = 0;
2403 		return -1;
2404 	}
2405 
2406 	*size = len;
2407 	return 0;
2408 }
2409 
2410 /**
2411  * fit_image_hash_get_algo - get hash algorithm name
2412  * @fit: pointer to the FIT format image header
2413  * @noffset: hash node offset
2414  * @algo: double pointer to char, will hold pointer to the algorithm name
2415  *
2416  * fit_image_hash_get_algo() finds hash algorithm property in a given hash node.
2417  * If the property is found its data start address is returned to the caller.
2418  *
2419  * returns:
2420  *     0, on success
2421  *     -1, on failure
2422  */
2423 int fit_image_hash_get_algo(const void *fit, int noffset, char **algo)
2424 {
2425 	int len;
2426 
2427 	*algo = (char *)fdt_getprop(fit, noffset, FIT_ALGO_PROP, &len);
2428 	if (*algo == NULL) {
2429 		fit_get_debug(fit, noffset, FIT_ALGO_PROP, len);
2430 		return -1;
2431 	}
2432 
2433 	return 0;
2434 }
2435 
2436 /**
2437  * fit_image_hash_get_value - get hash value and length
2438  * @fit: pointer to the FIT format image header
2439  * @noffset: hash node offset
2440  * @value: double pointer to uint8_t, will hold address of a hash value data
2441  * @value_len: pointer to an int, will hold hash data length
2442  *
2443  * fit_image_hash_get_value() finds hash value property in a given hash node.
2444  * If the property is found its data start address and size are returned to
2445  * the caller.
2446  *
2447  * returns:
2448  *     0, on success
2449  *     -1, on failure
2450  */
2451 int fit_image_hash_get_value(const void *fit, int noffset, uint8_t **value,
2452 				int *value_len)
2453 {
2454 	int len;
2455 
2456 	*value = (uint8_t *)fdt_getprop(fit, noffset, FIT_VALUE_PROP, &len);
2457 	if (*value == NULL) {
2458 		fit_get_debug(fit, noffset, FIT_VALUE_PROP, len);
2459 		*value_len = 0;
2460 		return -1;
2461 	}
2462 
2463 	*value_len = len;
2464 	return 0;
2465 }
2466 
2467 /**
2468  * fit_set_timestamp - set node timestamp property
2469  * @fit: pointer to the FIT format image header
2470  * @noffset: node offset
2471  * @timestamp: timestamp value to be set
2472  *
2473  * fit_set_timestamp() attempts to set timestamp property in the requested
2474  * node and returns operation status to the caller.
2475  *
2476  * returns:
2477  *     0, on success
2478  *     -1, on property read failure
2479  */
2480 int fit_set_timestamp(void *fit, int noffset, time_t timestamp)
2481 {
2482 	uint32_t t;
2483 	int ret;
2484 
2485 	t = cpu_to_uimage(timestamp);
2486 	ret = fdt_setprop(fit, noffset, FIT_TIMESTAMP_PROP, &t,
2487 				sizeof(uint32_t));
2488 	if (ret) {
2489 		printf("Can't set '%s' property for '%s' node (%s)\n",
2490 			FIT_TIMESTAMP_PROP, fit_get_name(fit, noffset, NULL),
2491 			fdt_strerror(ret));
2492 		return -1;
2493 	}
2494 
2495 	return 0;
2496 }
2497 
2498 /**
2499  * calculate_hash - calculate and return hash for provided input data
2500  * @data: pointer to the input data
2501  * @data_len: data length
2502  * @algo: requested hash algorithm
2503  * @value: pointer to the char, will hold hash value data (caller must
2504  * allocate enough free space)
2505  * value_len: length of the calculated hash
2506  *
2507  * calculate_hash() computes input data hash according to the requested algorithm.
2508  * Resulting hash value is placed in caller provided 'value' buffer, length
2509  * of the calculated hash is returned via value_len pointer argument.
2510  *
2511  * returns:
2512  *     0, on success
2513  *    -1, when algo is unsupported
2514  */
2515 static int calculate_hash(const void *data, int data_len, const char *algo,
2516 			uint8_t *value, int *value_len)
2517 {
2518 	if (strcmp(algo, "crc32") == 0) {
2519 		*((uint32_t *)value) = crc32_wd(0, data, data_len,
2520 							CHUNKSZ_CRC32);
2521 		*((uint32_t *)value) = cpu_to_uimage(*((uint32_t *)value));
2522 		*value_len = 4;
2523 	} else if (strcmp(algo, "sha1") == 0) {
2524 		sha1_csum_wd((unsigned char *) data, data_len,
2525 				(unsigned char *) value, CHUNKSZ_SHA1);
2526 		*value_len = 20;
2527 	} else if (strcmp(algo, "md5") == 0) {
2528 		md5_wd((unsigned char *)data, data_len, value, CHUNKSZ_MD5);
2529 		*value_len = 16;
2530 	} else {
2531 		debug("Unsupported hash alogrithm\n");
2532 		return -1;
2533 	}
2534 	return 0;
2535 }
2536 
2537 #ifdef USE_HOSTCC
2538 /**
2539  * fit_set_hashes - process FIT component image nodes and calculate hashes
2540  * @fit: pointer to the FIT format image header
2541  *
2542  * fit_set_hashes() adds hash values for all component images in the FIT blob.
2543  * Hashes are calculated for all component images which have hash subnodes
2544  * with algorithm property set to one of the supported hash algorithms.
2545  *
2546  * returns
2547  *     0, on success
2548  *     libfdt error code, on failure
2549  */
2550 int fit_set_hashes(void *fit)
2551 {
2552 	int images_noffset;
2553 	int noffset;
2554 	int ndepth;
2555 	int ret;
2556 
2557 	/* Find images parent node offset */
2558 	images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
2559 	if (images_noffset < 0) {
2560 		printf("Can't find images parent node '%s' (%s)\n",
2561 			FIT_IMAGES_PATH, fdt_strerror(images_noffset));
2562 		return images_noffset;
2563 	}
2564 
2565 	/* Process its subnodes, print out component images details */
2566 	for (ndepth = 0, noffset = fdt_next_node(fit, images_noffset, &ndepth);
2567 	     (noffset >= 0) && (ndepth > 0);
2568 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
2569 		if (ndepth == 1) {
2570 			/*
2571 			 * Direct child node of the images parent node,
2572 			 * i.e. component image node.
2573 			 */
2574 			ret = fit_image_set_hashes(fit, noffset);
2575 			if (ret)
2576 				return ret;
2577 		}
2578 	}
2579 
2580 	return 0;
2581 }
2582 
2583 /**
2584  * fit_image_set_hashes - calculate/set hashes for given component image node
2585  * @fit: pointer to the FIT format image header
2586  * @image_noffset: requested component image node
2587  *
2588  * fit_image_set_hashes() adds hash values for an component image node. All
2589  * existing hash subnodes are checked, if algorithm property is set to one of
2590  * the supported hash algorithms, hash value is computed and corresponding
2591  * hash node property is set, for example:
2592  *
2593  * Input component image node structure:
2594  *
2595  * o image@1 (at image_noffset)
2596  *   | - data = [binary data]
2597  *   o hash@1
2598  *     |- algo = "sha1"
2599  *
2600  * Output component image node structure:
2601  *
2602  * o image@1 (at image_noffset)
2603  *   | - data = [binary data]
2604  *   o hash@1
2605  *     |- algo = "sha1"
2606  *     |- value = sha1(data)
2607  *
2608  * returns:
2609  *     0 on sucess
2610  *    <0 on failure
2611  */
2612 int fit_image_set_hashes(void *fit, int image_noffset)
2613 {
2614 	const void *data;
2615 	size_t size;
2616 	char *algo;
2617 	uint8_t value[FIT_MAX_HASH_LEN];
2618 	int value_len;
2619 	int noffset;
2620 	int ndepth;
2621 
2622 	/* Get image data and data length */
2623 	if (fit_image_get_data(fit, image_noffset, &data, &size)) {
2624 		printf("Can't get image data/size\n");
2625 		return -1;
2626 	}
2627 
2628 	/* Process all hash subnodes of the component image node */
2629 	for (ndepth = 0, noffset = fdt_next_node(fit, image_noffset, &ndepth);
2630 	     (noffset >= 0) && (ndepth > 0);
2631 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
2632 		if (ndepth == 1) {
2633 			/* Direct child node of the component image node */
2634 
2635 			/*
2636 			 * Check subnode name, must be equal to "hash".
2637 			 * Multiple hash nodes require unique unit node
2638 			 * names, e.g. hash@1, hash@2, etc.
2639 			 */
2640 			if (strncmp(fit_get_name(fit, noffset, NULL),
2641 						FIT_HASH_NODENAME,
2642 						strlen(FIT_HASH_NODENAME)) != 0) {
2643 				/* Not a hash subnode, skip it */
2644 				continue;
2645 			}
2646 
2647 			if (fit_image_hash_get_algo(fit, noffset, &algo)) {
2648 				printf("Can't get hash algo property for "
2649 					"'%s' hash node in '%s' image node\n",
2650 					fit_get_name(fit, noffset, NULL),
2651 					fit_get_name(fit, image_noffset, NULL));
2652 				return -1;
2653 			}
2654 
2655 			if (calculate_hash(data, size, algo, value,
2656 						&value_len)) {
2657 				printf("Unsupported hash algorithm (%s) for "
2658 					"'%s' hash node in '%s' image node\n",
2659 					algo, fit_get_name(fit, noffset, NULL),
2660 					fit_get_name(fit, image_noffset,
2661 							NULL));
2662 				return -1;
2663 			}
2664 
2665 			if (fit_image_hash_set_value(fit, noffset, value,
2666 							value_len)) {
2667 				printf("Can't set hash value for "
2668 					"'%s' hash node in '%s' image node\n",
2669 					fit_get_name(fit, noffset, NULL),
2670 					fit_get_name(fit, image_noffset, NULL));
2671 				return -1;
2672 			}
2673 		}
2674 	}
2675 
2676 	return 0;
2677 }
2678 
2679 /**
2680  * fit_image_hash_set_value - set hash value in requested has node
2681  * @fit: pointer to the FIT format image header
2682  * @noffset: hash node offset
2683  * @value: hash value to be set
2684  * @value_len: hash value length
2685  *
2686  * fit_image_hash_set_value() attempts to set hash value in a node at offset
2687  * given and returns operation status to the caller.
2688  *
2689  * returns
2690  *     0, on success
2691  *     -1, on failure
2692  */
2693 int fit_image_hash_set_value(void *fit, int noffset, uint8_t *value,
2694 				int value_len)
2695 {
2696 	int ret;
2697 
2698 	ret = fdt_setprop(fit, noffset, FIT_VALUE_PROP, value, value_len);
2699 	if (ret) {
2700 		printf("Can't set hash '%s' property for '%s' node(%s)\n",
2701 			FIT_VALUE_PROP, fit_get_name(fit, noffset, NULL),
2702 			fdt_strerror(ret));
2703 		return -1;
2704 	}
2705 
2706 	return 0;
2707 }
2708 #endif /* USE_HOSTCC */
2709 
2710 /**
2711  * fit_image_check_hashes - verify data intergity
2712  * @fit: pointer to the FIT format image header
2713  * @image_noffset: component image node offset
2714  *
2715  * fit_image_check_hashes() goes over component image hash nodes,
2716  * re-calculates each data hash and compares with the value stored in hash
2717  * node.
2718  *
2719  * returns:
2720  *     1, if all hashes are valid
2721  *     0, otherwise (or on error)
2722  */
2723 int fit_image_check_hashes(const void *fit, int image_noffset)
2724 {
2725 	const void	*data;
2726 	size_t		size;
2727 	char		*algo;
2728 	uint8_t		*fit_value;
2729 	int		fit_value_len;
2730 	uint8_t		value[FIT_MAX_HASH_LEN];
2731 	int		value_len;
2732 	int		noffset;
2733 	int		ndepth;
2734 	char		*err_msg = "";
2735 
2736 	/* Get image data and data length */
2737 	if (fit_image_get_data(fit, image_noffset, &data, &size)) {
2738 		printf("Can't get image data/size\n");
2739 		return 0;
2740 	}
2741 
2742 	/* Process all hash subnodes of the component image node */
2743 	for (ndepth = 0, noffset = fdt_next_node(fit, image_noffset, &ndepth);
2744 	     (noffset >= 0) && (ndepth > 0);
2745 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
2746 		if (ndepth == 1) {
2747 			/* Direct child node of the component image node */
2748 
2749 			/*
2750 			 * Check subnode name, must be equal to "hash".
2751 			 * Multiple hash nodes require unique unit node
2752 			 * names, e.g. hash@1, hash@2, etc.
2753 			 */
2754 			if (strncmp(fit_get_name(fit, noffset, NULL),
2755 					FIT_HASH_NODENAME,
2756 					strlen(FIT_HASH_NODENAME)) != 0)
2757 				continue;
2758 
2759 			if (fit_image_hash_get_algo(fit, noffset, &algo)) {
2760 				err_msg = " error!\nCan't get hash algo "
2761 						"property";
2762 				goto error;
2763 			}
2764 			printf("%s", algo);
2765 
2766 			if (fit_image_hash_get_value(fit, noffset, &fit_value,
2767 							&fit_value_len)) {
2768 				err_msg = " error!\nCan't get hash value "
2769 						"property";
2770 				goto error;
2771 			}
2772 
2773 			if (calculate_hash(data, size, algo, value,
2774 						&value_len)) {
2775 				err_msg = " error!\n"
2776 						"Unsupported hash algorithm";
2777 				goto error;
2778 			}
2779 
2780 			if (value_len != fit_value_len) {
2781 				err_msg = " error !\nBad hash value len";
2782 				goto error;
2783 			} else if (memcmp(value, fit_value, value_len) != 0) {
2784 				err_msg = " error!\nBad hash value";
2785 				goto error;
2786 			}
2787 			printf("+ ");
2788 		}
2789 	}
2790 
2791 	return 1;
2792 
2793 error:
2794 	printf("%s for '%s' hash node in '%s' image node\n",
2795 			err_msg, fit_get_name(fit, noffset, NULL),
2796 			fit_get_name(fit, image_noffset, NULL));
2797 	return 0;
2798 }
2799 
2800 /**
2801  * fit_all_image_check_hashes - verify data intergity for all images
2802  * @fit: pointer to the FIT format image header
2803  *
2804  * fit_all_image_check_hashes() goes over all images in the FIT and
2805  * for every images checks if all it's hashes are valid.
2806  *
2807  * returns:
2808  *     1, if all hashes of all images are valid
2809  *     0, otherwise (or on error)
2810  */
2811 int fit_all_image_check_hashes(const void *fit)
2812 {
2813 	int images_noffset;
2814 	int noffset;
2815 	int ndepth;
2816 	int count;
2817 
2818 	/* Find images parent node offset */
2819 	images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
2820 	if (images_noffset < 0) {
2821 		printf("Can't find images parent node '%s' (%s)\n",
2822 			FIT_IMAGES_PATH, fdt_strerror(images_noffset));
2823 		return 0;
2824 	}
2825 
2826 	/* Process all image subnodes, check hashes for each */
2827 	printf("## Checking hash(es) for FIT Image at %08lx ...\n",
2828 		(ulong)fit);
2829 	for (ndepth = 0, count = 0,
2830 		noffset = fdt_next_node(fit, images_noffset, &ndepth);
2831 		(noffset >= 0) && (ndepth > 0);
2832 		noffset = fdt_next_node(fit, noffset, &ndepth)) {
2833 		if (ndepth == 1) {
2834 			/*
2835 			 * Direct child node of the images parent node,
2836 			 * i.e. component image node.
2837 			 */
2838 			printf("   Hash(es) for Image %u (%s): ", count++,
2839 					fit_get_name(fit, noffset, NULL));
2840 
2841 			if (!fit_image_check_hashes(fit, noffset))
2842 				return 0;
2843 			printf("\n");
2844 		}
2845 	}
2846 	return 1;
2847 }
2848 
2849 /**
2850  * fit_image_check_os - check whether image node is of a given os type
2851  * @fit: pointer to the FIT format image header
2852  * @noffset: component image node offset
2853  * @os: requested image os
2854  *
2855  * fit_image_check_os() reads image os property and compares its numeric
2856  * id with the requested os. Comparison result is returned to the caller.
2857  *
2858  * returns:
2859  *     1 if image is of given os type
2860  *     0 otherwise (or on error)
2861  */
2862 int fit_image_check_os(const void *fit, int noffset, uint8_t os)
2863 {
2864 	uint8_t image_os;
2865 
2866 	if (fit_image_get_os(fit, noffset, &image_os))
2867 		return 0;
2868 	return (os == image_os);
2869 }
2870 
2871 /**
2872  * fit_image_check_arch - check whether image node is of a given arch
2873  * @fit: pointer to the FIT format image header
2874  * @noffset: component image node offset
2875  * @arch: requested imagearch
2876  *
2877  * fit_image_check_arch() reads image arch property and compares its numeric
2878  * id with the requested arch. Comparison result is returned to the caller.
2879  *
2880  * returns:
2881  *     1 if image is of given arch
2882  *     0 otherwise (or on error)
2883  */
2884 int fit_image_check_arch(const void *fit, int noffset, uint8_t arch)
2885 {
2886 	uint8_t image_arch;
2887 
2888 	if (fit_image_get_arch(fit, noffset, &image_arch))
2889 		return 0;
2890 	return (arch == image_arch);
2891 }
2892 
2893 /**
2894  * fit_image_check_type - check whether image node is of a given type
2895  * @fit: pointer to the FIT format image header
2896  * @noffset: component image node offset
2897  * @type: requested image type
2898  *
2899  * fit_image_check_type() reads image type property and compares its numeric
2900  * id with the requested type. Comparison result is returned to the caller.
2901  *
2902  * returns:
2903  *     1 if image is of given type
2904  *     0 otherwise (or on error)
2905  */
2906 int fit_image_check_type(const void *fit, int noffset, uint8_t type)
2907 {
2908 	uint8_t image_type;
2909 
2910 	if (fit_image_get_type(fit, noffset, &image_type))
2911 		return 0;
2912 	return (type == image_type);
2913 }
2914 
2915 /**
2916  * fit_image_check_comp - check whether image node uses given compression
2917  * @fit: pointer to the FIT format image header
2918  * @noffset: component image node offset
2919  * @comp: requested image compression type
2920  *
2921  * fit_image_check_comp() reads image compression property and compares its
2922  * numeric id with the requested compression type. Comparison result is
2923  * returned to the caller.
2924  *
2925  * returns:
2926  *     1 if image uses requested compression
2927  *     0 otherwise (or on error)
2928  */
2929 int fit_image_check_comp(const void *fit, int noffset, uint8_t comp)
2930 {
2931 	uint8_t image_comp;
2932 
2933 	if (fit_image_get_comp(fit, noffset, &image_comp))
2934 		return 0;
2935 	return (comp == image_comp);
2936 }
2937 
2938 /**
2939  * fit_check_format - sanity check FIT image format
2940  * @fit: pointer to the FIT format image header
2941  *
2942  * fit_check_format() runs a basic sanity FIT image verification.
2943  * Routine checks for mandatory properties, nodes, etc.
2944  *
2945  * returns:
2946  *     1, on success
2947  *     0, on failure
2948  */
2949 int fit_check_format(const void *fit)
2950 {
2951 	/* mandatory / node 'description' property */
2952 	if (fdt_getprop(fit, 0, FIT_DESC_PROP, NULL) == NULL) {
2953 		debug("Wrong FIT format: no description\n");
2954 		return 0;
2955 	}
2956 
2957 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
2958 	/* mandatory / node 'timestamp' property */
2959 	if (fdt_getprop(fit, 0, FIT_TIMESTAMP_PROP, NULL) == NULL) {
2960 		debug("Wrong FIT format: no timestamp\n");
2961 		return 0;
2962 	}
2963 #endif
2964 
2965 	/* mandatory subimages parent '/images' node */
2966 	if (fdt_path_offset(fit, FIT_IMAGES_PATH) < 0) {
2967 		debug("Wrong FIT format: no images parent node\n");
2968 		return 0;
2969 	}
2970 
2971 	return 1;
2972 }
2973 
2974 /**
2975  * fit_conf_get_node - get node offset for configuration of a given unit name
2976  * @fit: pointer to the FIT format image header
2977  * @conf_uname: configuration node unit name
2978  *
2979  * fit_conf_get_node() finds a configuration (withing the '/configurations'
2980  * parant node) of a provided unit name. If configuration is found its node offset
2981  * is returned to the caller.
2982  *
2983  * When NULL is provided in second argument fit_conf_get_node() will search
2984  * for a default configuration node instead. Default configuration node unit name
2985  * is retrived from FIT_DEFAULT_PROP property of the '/configurations' node.
2986  *
2987  * returns:
2988  *     configuration node offset when found (>=0)
2989  *     negative number on failure (FDT_ERR_* code)
2990  */
2991 int fit_conf_get_node(const void *fit, const char *conf_uname)
2992 {
2993 	int noffset, confs_noffset;
2994 	int len;
2995 
2996 	confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH);
2997 	if (confs_noffset < 0) {
2998 		debug("Can't find configurations parent node '%s' (%s)\n",
2999 			FIT_CONFS_PATH, fdt_strerror(confs_noffset));
3000 		return confs_noffset;
3001 	}
3002 
3003 	if (conf_uname == NULL) {
3004 		/* get configuration unit name from the default property */
3005 		debug("No configuration specified, trying default...\n");
3006 		conf_uname = (char *)fdt_getprop(fit, confs_noffset,
3007 						 FIT_DEFAULT_PROP, &len);
3008 		if (conf_uname == NULL) {
3009 			fit_get_debug(fit, confs_noffset, FIT_DEFAULT_PROP,
3010 					len);
3011 			return len;
3012 		}
3013 		debug("Found default configuration: '%s'\n", conf_uname);
3014 	}
3015 
3016 	noffset = fdt_subnode_offset(fit, confs_noffset, conf_uname);
3017 	if (noffset < 0) {
3018 		debug("Can't get node offset for configuration unit name: "
3019 			"'%s' (%s)\n",
3020 			conf_uname, fdt_strerror(noffset));
3021 	}
3022 
3023 	return noffset;
3024 }
3025 
3026 static int __fit_conf_get_prop_node(const void *fit, int noffset,
3027 		const char *prop_name)
3028 {
3029 	char *uname;
3030 	int len;
3031 
3032 	/* get kernel image unit name from configuration kernel property */
3033 	uname = (char *)fdt_getprop(fit, noffset, prop_name, &len);
3034 	if (uname == NULL)
3035 		return len;
3036 
3037 	return fit_image_get_node(fit, uname);
3038 }
3039 
3040 /**
3041  * fit_conf_get_kernel_node - get kernel image node offset that corresponds to
3042  * a given configuration
3043  * @fit: pointer to the FIT format image header
3044  * @noffset: configuration node offset
3045  *
3046  * fit_conf_get_kernel_node() retrives kernel image node unit name from
3047  * configuration FIT_KERNEL_PROP property and translates it to the node
3048  * offset.
3049  *
3050  * returns:
3051  *     image node offset when found (>=0)
3052  *     negative number on failure (FDT_ERR_* code)
3053  */
3054 int fit_conf_get_kernel_node(const void *fit, int noffset)
3055 {
3056 	return __fit_conf_get_prop_node(fit, noffset, FIT_KERNEL_PROP);
3057 }
3058 
3059 /**
3060  * fit_conf_get_ramdisk_node - get ramdisk image node offset that corresponds to
3061  * a given configuration
3062  * @fit: pointer to the FIT format image header
3063  * @noffset: configuration node offset
3064  *
3065  * fit_conf_get_ramdisk_node() retrives ramdisk image node unit name from
3066  * configuration FIT_KERNEL_PROP property and translates it to the node
3067  * offset.
3068  *
3069  * returns:
3070  *     image node offset when found (>=0)
3071  *     negative number on failure (FDT_ERR_* code)
3072  */
3073 int fit_conf_get_ramdisk_node(const void *fit, int noffset)
3074 {
3075 	return __fit_conf_get_prop_node(fit, noffset, FIT_RAMDISK_PROP);
3076 }
3077 
3078 /**
3079  * fit_conf_get_fdt_node - get fdt image node offset that corresponds to
3080  * a given configuration
3081  * @fit: pointer to the FIT format image header
3082  * @noffset: configuration node offset
3083  *
3084  * fit_conf_get_fdt_node() retrives fdt image node unit name from
3085  * configuration FIT_KERNEL_PROP property and translates it to the node
3086  * offset.
3087  *
3088  * returns:
3089  *     image node offset when found (>=0)
3090  *     negative number on failure (FDT_ERR_* code)
3091  */
3092 int fit_conf_get_fdt_node(const void *fit, int noffset)
3093 {
3094 	return __fit_conf_get_prop_node(fit, noffset, FIT_FDT_PROP);
3095 }
3096 
3097 /**
3098  * fit_conf_print - prints out the FIT configuration details
3099  * @fit: pointer to the FIT format image header
3100  * @noffset: offset of the configuration node
3101  * @p: pointer to prefix string
3102  *
3103  * fit_conf_print() lists all mandatory properies for the processed
3104  * configuration node.
3105  *
3106  * returns:
3107  *     no returned results
3108  */
3109 void fit_conf_print(const void *fit, int noffset, const char *p)
3110 {
3111 	char *desc;
3112 	char *uname;
3113 	int ret;
3114 
3115 	/* Mandatory properties */
3116 	ret = fit_get_desc(fit, noffset, &desc);
3117 	printf("%s  Description:  ", p);
3118 	if (ret)
3119 		printf("unavailable\n");
3120 	else
3121 		printf("%s\n", desc);
3122 
3123 	uname = (char *)fdt_getprop(fit, noffset, FIT_KERNEL_PROP, NULL);
3124 	printf("%s  Kernel:       ", p);
3125 	if (uname == NULL)
3126 		printf("unavailable\n");
3127 	else
3128 		printf("%s\n", uname);
3129 
3130 	/* Optional properties */
3131 	uname = (char *)fdt_getprop(fit, noffset, FIT_RAMDISK_PROP, NULL);
3132 	if (uname)
3133 		printf("%s  Init Ramdisk: %s\n", p, uname);
3134 
3135 	uname = (char *)fdt_getprop(fit, noffset, FIT_FDT_PROP, NULL);
3136 	if (uname)
3137 		printf("%s  FDT:          %s\n", p, uname);
3138 }
3139 
3140 /**
3141  * fit_check_ramdisk - verify FIT format ramdisk subimage
3142  * @fit_hdr: pointer to the FIT ramdisk header
3143  * @rd_noffset: ramdisk subimage node offset within FIT image
3144  * @arch: requested ramdisk image architecture type
3145  * @verify: data CRC verification flag
3146  *
3147  * fit_check_ramdisk() verifies integrity of the ramdisk subimage and from
3148  * specified FIT image.
3149  *
3150  * returns:
3151  *     1, on success
3152  *     0, on failure
3153  */
3154 #ifndef USE_HOSTCC
3155 static int fit_check_ramdisk(const void *fit, int rd_noffset, uint8_t arch,
3156 				int verify)
3157 {
3158 	fit_image_print(fit, rd_noffset, "   ");
3159 
3160 	if (verify) {
3161 		puts("   Verifying Hash Integrity ... ");
3162 		if (!fit_image_check_hashes(fit, rd_noffset)) {
3163 			puts("Bad Data Hash\n");
3164 			show_boot_progress(-125);
3165 			return 0;
3166 		}
3167 		puts("OK\n");
3168 	}
3169 
3170 	show_boot_progress(126);
3171 	if (!fit_image_check_os(fit, rd_noffset, IH_OS_LINUX) ||
3172 	    !fit_image_check_arch(fit, rd_noffset, arch) ||
3173 	    !fit_image_check_type(fit, rd_noffset, IH_TYPE_RAMDISK)) {
3174 		printf("No Linux %s Ramdisk Image\n",
3175 				genimg_get_arch_name(arch));
3176 		show_boot_progress(-126);
3177 		return 0;
3178 	}
3179 
3180 	show_boot_progress(127);
3181 	return 1;
3182 }
3183 #endif /* USE_HOSTCC */
3184 #endif /* CONFIG_FIT */
3185