xref: /openbmc/u-boot/common/image.c (revision 8d811ca3)
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 	{	IH_ARCH_OPENRISC,	"or1k",		"OpenRISC 1000",},
98 	{	-1,			"",		"",		},
99 };
100 
101 static const table_entry_t uimage_os[] = {
102 	{	IH_OS_INVALID,	NULL,		"Invalid OS",		},
103 	{	IH_OS_LINUX,	"linux",	"Linux",		},
104 #if defined(CONFIG_LYNXKDI) || defined(USE_HOSTCC)
105 	{	IH_OS_LYNXOS,	"lynxos",	"LynxOS",		},
106 #endif
107 	{	IH_OS_NETBSD,	"netbsd",	"NetBSD",		},
108 	{	IH_OS_OSE,	"ose",		"Enea OSE",		},
109 	{	IH_OS_RTEMS,	"rtems",	"RTEMS",		},
110 	{	IH_OS_U_BOOT,	"u-boot",	"U-Boot",		},
111 #if defined(CONFIG_CMD_ELF) || defined(USE_HOSTCC)
112 	{	IH_OS_QNX,	"qnx",		"QNX",			},
113 	{	IH_OS_VXWORKS,	"vxworks",	"VxWorks",		},
114 #endif
115 #if defined(CONFIG_INTEGRITY) || defined(USE_HOSTCC)
116 	{	IH_OS_INTEGRITY,"integrity",	"INTEGRITY",		},
117 #endif
118 #ifdef USE_HOSTCC
119 	{	IH_OS_4_4BSD,	"4_4bsd",	"4_4BSD",		},
120 	{	IH_OS_DELL,	"dell",		"Dell",			},
121 	{	IH_OS_ESIX,	"esix",		"Esix",			},
122 	{	IH_OS_FREEBSD,	"freebsd",	"FreeBSD",		},
123 	{	IH_OS_IRIX,	"irix",		"Irix",			},
124 	{	IH_OS_NCR,	"ncr",		"NCR",			},
125 	{	IH_OS_OPENBSD,	"openbsd",	"OpenBSD",		},
126 	{	IH_OS_PSOS,	"psos",		"pSOS",			},
127 	{	IH_OS_SCO,	"sco",		"SCO",			},
128 	{	IH_OS_SOLARIS,	"solaris",	"Solaris",		},
129 	{	IH_OS_SVR4,	"svr4",		"SVR4",			},
130 #endif
131 	{	-1,		"",		"",			},
132 };
133 
134 static const table_entry_t uimage_type[] = {
135 	{	IH_TYPE_AISIMAGE,   "aisimage",   "Davinci AIS image",},
136 	{	IH_TYPE_FILESYSTEM, "filesystem", "Filesystem Image",	},
137 	{	IH_TYPE_FIRMWARE,   "firmware",	  "Firmware",		},
138 	{	IH_TYPE_FLATDT,     "flat_dt",    "Flat Device Tree",	},
139 	{	IH_TYPE_KERNEL,	    "kernel",	  "Kernel Image",	},
140 	{	IH_TYPE_KERNEL_NOLOAD, "kernel_noload",  "Kernel Image (no loading done)", },
141 	{	IH_TYPE_KWBIMAGE,   "kwbimage",   "Kirkwood Boot Image",},
142 	{	IH_TYPE_IMXIMAGE,   "imximage",   "Freescale i.MX Boot Image",},
143 	{	IH_TYPE_INVALID,    NULL,	  "Invalid Image",	},
144 	{	IH_TYPE_MULTI,	    "multi",	  "Multi-File Image",	},
145 	{	IH_TYPE_OMAPIMAGE,  "omapimage",  "TI OMAP SPL With GP CH",},
146 	{	IH_TYPE_PBLIMAGE,   "pblimage",   "Freescale PBL Boot Image",},
147 	{	IH_TYPE_RAMDISK,    "ramdisk",	  "RAMDisk Image",	},
148 	{	IH_TYPE_SCRIPT,     "script",	  "Script",		},
149 	{	IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
150 	{	IH_TYPE_UBLIMAGE,   "ublimage",   "Davinci UBL image",},
151 	{	-1,		    "",		  "",			},
152 };
153 
154 static const table_entry_t uimage_comp[] = {
155 	{	IH_COMP_NONE,	"none",		"uncompressed",		},
156 	{	IH_COMP_BZIP2,	"bzip2",	"bzip2 compressed",	},
157 	{	IH_COMP_GZIP,	"gzip",		"gzip compressed",	},
158 	{	IH_COMP_LZMA,	"lzma",		"lzma compressed",	},
159 	{	IH_COMP_LZO,	"lzo",		"lzo compressed",	},
160 	{	-1,		"",		"",			},
161 };
162 
163 uint32_t crc32(uint32_t, const unsigned char *, uint);
164 uint32_t crc32_wd(uint32_t, const unsigned char *, uint, uint);
165 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
166 static void genimg_print_time(time_t timestamp);
167 #endif
168 
169 /*****************************************************************************/
170 /* Legacy format routines */
171 /*****************************************************************************/
172 int image_check_hcrc(const image_header_t *hdr)
173 {
174 	ulong hcrc;
175 	ulong len = image_get_header_size();
176 	image_header_t header;
177 
178 	/* Copy header so we can blank CRC field for re-calculation */
179 	memmove(&header, (char *)hdr, image_get_header_size());
180 	image_set_hcrc(&header, 0);
181 
182 	hcrc = crc32(0, (unsigned char *)&header, len);
183 
184 	return (hcrc == image_get_hcrc(hdr));
185 }
186 
187 int image_check_dcrc(const image_header_t *hdr)
188 {
189 	ulong data = image_get_data(hdr);
190 	ulong len = image_get_data_size(hdr);
191 	ulong dcrc = crc32_wd(0, (unsigned char *)data, len, CHUNKSZ_CRC32);
192 
193 	return (dcrc == image_get_dcrc(hdr));
194 }
195 
196 /**
197  * image_multi_count - get component (sub-image) count
198  * @hdr: pointer to the header of the multi component image
199  *
200  * image_multi_count() returns number of components in a multi
201  * component image.
202  *
203  * Note: no checking of the image type is done, caller must pass
204  * a valid multi component image.
205  *
206  * returns:
207  *     number of components
208  */
209 ulong image_multi_count(const image_header_t *hdr)
210 {
211 	ulong i, count = 0;
212 	uint32_t *size;
213 
214 	/* get start of the image payload, which in case of multi
215 	 * component images that points to a table of component sizes */
216 	size = (uint32_t *)image_get_data(hdr);
217 
218 	/* count non empty slots */
219 	for (i = 0; size[i]; ++i)
220 		count++;
221 
222 	return count;
223 }
224 
225 /**
226  * image_multi_getimg - get component data address and size
227  * @hdr: pointer to the header of the multi component image
228  * @idx: index of the requested component
229  * @data: pointer to a ulong variable, will hold component data address
230  * @len: pointer to a ulong variable, will hold component size
231  *
232  * image_multi_getimg() returns size and data address for the requested
233  * component in a multi component image.
234  *
235  * Note: no checking of the image type is done, caller must pass
236  * a valid multi component image.
237  *
238  * returns:
239  *     data address and size of the component, if idx is valid
240  *     0 in data and len, if idx is out of range
241  */
242 void image_multi_getimg(const image_header_t *hdr, ulong idx,
243 			ulong *data, ulong *len)
244 {
245 	int i;
246 	uint32_t *size;
247 	ulong offset, count, img_data;
248 
249 	/* get number of component */
250 	count = image_multi_count(hdr);
251 
252 	/* get start of the image payload, which in case of multi
253 	 * component images that points to a table of component sizes */
254 	size = (uint32_t *)image_get_data(hdr);
255 
256 	/* get address of the proper component data start, which means
257 	 * skipping sizes table (add 1 for last, null entry) */
258 	img_data = image_get_data(hdr) + (count + 1) * sizeof(uint32_t);
259 
260 	if (idx < count) {
261 		*len = uimage_to_cpu(size[idx]);
262 		offset = 0;
263 
264 		/* go over all indices preceding requested component idx */
265 		for (i = 0; i < idx; i++) {
266 			/* add up i-th component size, rounding up to 4 bytes */
267 			offset += (uimage_to_cpu(size[i]) + 3) & ~3 ;
268 		}
269 
270 		/* calculate idx-th component data address */
271 		*data = img_data + offset;
272 	} else {
273 		*len = 0;
274 		*data = 0;
275 	}
276 }
277 
278 static void image_print_type(const image_header_t *hdr)
279 {
280 	const char *os, *arch, *type, *comp;
281 
282 	os = genimg_get_os_name(image_get_os(hdr));
283 	arch = genimg_get_arch_name(image_get_arch(hdr));
284 	type = genimg_get_type_name(image_get_type(hdr));
285 	comp = genimg_get_comp_name(image_get_comp(hdr));
286 
287 	printf("%s %s %s (%s)\n", arch, os, type, comp);
288 }
289 
290 /**
291  * image_print_contents - prints out the contents of the legacy format image
292  * @ptr: pointer to the legacy format image header
293  * @p: pointer to prefix string
294  *
295  * image_print_contents() formats a multi line legacy image contents description.
296  * The routine prints out all header fields followed by the size/offset data
297  * for MULTI/SCRIPT images.
298  *
299  * returns:
300  *     no returned results
301  */
302 void image_print_contents(const void *ptr)
303 {
304 	const image_header_t *hdr = (const image_header_t *)ptr;
305 	const char *p;
306 
307 #ifdef USE_HOSTCC
308 	p = "";
309 #else
310 	p = "   ";
311 #endif
312 
313 	printf("%sImage Name:   %.*s\n", p, IH_NMLEN, image_get_name(hdr));
314 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
315 	printf("%sCreated:      ", p);
316 	genimg_print_time((time_t)image_get_time(hdr));
317 #endif
318 	printf("%sImage Type:   ", p);
319 	image_print_type(hdr);
320 	printf("%sData Size:    ", p);
321 	genimg_print_size(image_get_data_size(hdr));
322 	printf("%sLoad Address: %08x\n", p, image_get_load(hdr));
323 	printf("%sEntry Point:  %08x\n", p, image_get_ep(hdr));
324 
325 	if (image_check_type(hdr, IH_TYPE_MULTI) ||
326 			image_check_type(hdr, IH_TYPE_SCRIPT)) {
327 		int i;
328 		ulong data, len;
329 		ulong count = image_multi_count(hdr);
330 
331 		printf("%sContents:\n", p);
332 		for (i = 0; i < count; i++) {
333 			image_multi_getimg(hdr, i, &data, &len);
334 
335 			printf("%s   Image %d: ", p, i);
336 			genimg_print_size(len);
337 
338 			if (image_check_type(hdr, IH_TYPE_SCRIPT) && i > 0) {
339 				/*
340 				 * the user may need to know offsets
341 				 * if planning to do something with
342 				 * multiple files
343 				 */
344 				printf("%s    Offset = 0x%08lx\n", p, data);
345 			}
346 		}
347 	}
348 }
349 
350 
351 #ifndef USE_HOSTCC
352 /**
353  * image_get_ramdisk - get and verify ramdisk image
354  * @rd_addr: ramdisk image start address
355  * @arch: expected ramdisk architecture
356  * @verify: checksum verification flag
357  *
358  * image_get_ramdisk() returns a pointer to the verified ramdisk image
359  * header. Routine receives image start address and expected architecture
360  * flag. Verification done covers data and header integrity and os/type/arch
361  * fields checking.
362  *
363  * If dataflash support is enabled routine checks for dataflash addresses
364  * and handles required dataflash reads.
365  *
366  * returns:
367  *     pointer to a ramdisk image header, if image was found and valid
368  *     otherwise, return NULL
369  */
370 static const image_header_t *image_get_ramdisk(ulong rd_addr, uint8_t arch,
371 						int verify)
372 {
373 	const image_header_t *rd_hdr = (const image_header_t *)rd_addr;
374 
375 	if (!image_check_magic(rd_hdr)) {
376 		puts("Bad Magic Number\n");
377 		bootstage_error(BOOTSTAGE_ID_RD_MAGIC);
378 		return NULL;
379 	}
380 
381 	if (!image_check_hcrc(rd_hdr)) {
382 		puts("Bad Header Checksum\n");
383 		bootstage_error(BOOTSTAGE_ID_RD_HDR_CHECKSUM);
384 		return NULL;
385 	}
386 
387 	bootstage_mark(BOOTSTAGE_ID_RD_MAGIC);
388 	image_print_contents(rd_hdr);
389 
390 	if (verify) {
391 		puts("   Verifying Checksum ... ");
392 		if (!image_check_dcrc(rd_hdr)) {
393 			puts("Bad Data CRC\n");
394 			bootstage_error(BOOTSTAGE_ID_RD_CHECKSUM);
395 			return NULL;
396 		}
397 		puts("OK\n");
398 	}
399 
400 	bootstage_mark(BOOTSTAGE_ID_RD_HDR_CHECKSUM);
401 
402 	if (!image_check_os(rd_hdr, IH_OS_LINUX) ||
403 	    !image_check_arch(rd_hdr, arch) ||
404 	    !image_check_type(rd_hdr, IH_TYPE_RAMDISK)) {
405 		printf("No Linux %s Ramdisk Image\n",
406 				genimg_get_arch_name(arch));
407 		bootstage_error(BOOTSTAGE_ID_RAMDISK);
408 		return NULL;
409 	}
410 
411 	return rd_hdr;
412 }
413 #endif /* !USE_HOSTCC */
414 
415 /*****************************************************************************/
416 /* Shared dual-format routines */
417 /*****************************************************************************/
418 #ifndef USE_HOSTCC
419 int getenv_yesno(char *var)
420 {
421 	char *s = getenv(var);
422 	return (s && (*s == 'n')) ? 0 : 1;
423 }
424 
425 ulong getenv_bootm_low(void)
426 {
427 	char *s = getenv("bootm_low");
428 	if (s) {
429 		ulong tmp = simple_strtoul(s, NULL, 16);
430 		return tmp;
431 	}
432 
433 #if defined(CONFIG_SYS_SDRAM_BASE)
434 	return CONFIG_SYS_SDRAM_BASE;
435 #elif defined(CONFIG_ARM)
436 	return gd->bd->bi_dram[0].start;
437 #else
438 	return 0;
439 #endif
440 }
441 
442 phys_size_t getenv_bootm_size(void)
443 {
444 	phys_size_t tmp;
445 	char *s = getenv("bootm_size");
446 	if (s) {
447 		tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
448 		return tmp;
449 	}
450 	s = getenv("bootm_low");
451 	if (s)
452 		tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
453 	else
454 		tmp = 0;
455 
456 
457 #if defined(CONFIG_ARM)
458 	return gd->bd->bi_dram[0].size - tmp;
459 #else
460 	return gd->bd->bi_memsize - tmp;
461 #endif
462 }
463 
464 phys_size_t getenv_bootm_mapsize(void)
465 {
466 	phys_size_t tmp;
467 	char *s = getenv("bootm_mapsize");
468 	if (s) {
469 		tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
470 		return tmp;
471 	}
472 
473 #if defined(CONFIG_SYS_BOOTMAPSZ)
474 	return CONFIG_SYS_BOOTMAPSZ;
475 #else
476 	return getenv_bootm_size();
477 #endif
478 }
479 
480 void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
481 {
482 	if (to == from)
483 		return;
484 
485 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
486 	while (len > 0) {
487 		size_t tail = (len > chunksz) ? chunksz : len;
488 		WATCHDOG_RESET();
489 		memmove(to, from, tail);
490 		to += tail;
491 		from += tail;
492 		len -= tail;
493 	}
494 #else	/* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
495 	memmove(to, from, len);
496 #endif	/* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
497 }
498 #endif /* !USE_HOSTCC */
499 
500 void genimg_print_size(uint32_t size)
501 {
502 #ifndef USE_HOSTCC
503 	printf("%d Bytes = ", size);
504 	print_size(size, "\n");
505 #else
506 	printf("%d Bytes = %.2f kB = %.2f MB\n",
507 			size, (double)size / 1.024e3,
508 			(double)size / 1.048576e6);
509 #endif
510 }
511 
512 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
513 static void genimg_print_time(time_t timestamp)
514 {
515 #ifndef USE_HOSTCC
516 	struct rtc_time tm;
517 
518 	to_tm(timestamp, &tm);
519 	printf("%4d-%02d-%02d  %2d:%02d:%02d UTC\n",
520 			tm.tm_year, tm.tm_mon, tm.tm_mday,
521 			tm.tm_hour, tm.tm_min, tm.tm_sec);
522 #else
523 	printf("%s", ctime(&timestamp));
524 #endif
525 }
526 #endif /* CONFIG_TIMESTAMP || CONFIG_CMD_DATE || USE_HOSTCC */
527 
528 /**
529  * get_table_entry_name - translate entry id to long name
530  * @table: pointer to a translation table for entries of a specific type
531  * @msg: message to be returned when translation fails
532  * @id: entry id to be translated
533  *
534  * get_table_entry_name() will go over translation table trying to find
535  * entry that matches given id. If matching entry is found, its long
536  * name is returned to the caller.
537  *
538  * returns:
539  *     long entry name if translation succeeds
540  *     msg otherwise
541  */
542 char *get_table_entry_name(const table_entry_t *table, char *msg, int id)
543 {
544 	for (; table->id >= 0; ++table) {
545 		if (table->id == id)
546 #if defined(USE_HOSTCC) || !defined(CONFIG_NEEDS_MANUAL_RELOC)
547 			return table->lname;
548 #else
549 			return table->lname + gd->reloc_off;
550 #endif
551 	}
552 	return (msg);
553 }
554 
555 const char *genimg_get_os_name(uint8_t os)
556 {
557 	return (get_table_entry_name(uimage_os, "Unknown OS", os));
558 }
559 
560 const char *genimg_get_arch_name(uint8_t arch)
561 {
562 	return (get_table_entry_name(uimage_arch, "Unknown Architecture",
563 					arch));
564 }
565 
566 const char *genimg_get_type_name(uint8_t type)
567 {
568 	return (get_table_entry_name(uimage_type, "Unknown Image", type));
569 }
570 
571 const char *genimg_get_comp_name(uint8_t comp)
572 {
573 	return (get_table_entry_name(uimage_comp, "Unknown Compression",
574 					comp));
575 }
576 
577 /**
578  * get_table_entry_id - translate short entry name to id
579  * @table: pointer to a translation table for entries of a specific type
580  * @table_name: to be used in case of error
581  * @name: entry short name to be translated
582  *
583  * get_table_entry_id() will go over translation table trying to find
584  * entry that matches given short name. If matching entry is found,
585  * its id returned to the caller.
586  *
587  * returns:
588  *     entry id if translation succeeds
589  *     -1 otherwise
590  */
591 int get_table_entry_id(const table_entry_t *table,
592 		const char *table_name, const char *name)
593 {
594 	const table_entry_t *t;
595 #ifdef USE_HOSTCC
596 	int first = 1;
597 
598 	for (t = table; t->id >= 0; ++t) {
599 		if (t->sname && strcasecmp(t->sname, name) == 0)
600 			return(t->id);
601 	}
602 
603 	fprintf(stderr, "\nInvalid %s Type - valid names are", table_name);
604 	for (t = table; t->id >= 0; ++t) {
605 		if (t->sname == NULL)
606 			continue;
607 		fprintf(stderr, "%c %s", (first) ? ':' : ',', t->sname);
608 		first = 0;
609 	}
610 	fprintf(stderr, "\n");
611 #else
612 	for (t = table; t->id >= 0; ++t) {
613 #ifdef CONFIG_NEEDS_MANUAL_RELOC
614 		if (t->sname && strcmp(t->sname + gd->reloc_off, name) == 0)
615 #else
616 		if (t->sname && strcmp(t->sname, name) == 0)
617 #endif
618 			return (t->id);
619 	}
620 	debug("Invalid %s Type: %s\n", table_name, name);
621 #endif /* USE_HOSTCC */
622 	return (-1);
623 }
624 
625 int genimg_get_os_id(const char *name)
626 {
627 	return (get_table_entry_id(uimage_os, "OS", name));
628 }
629 
630 int genimg_get_arch_id(const char *name)
631 {
632 	return (get_table_entry_id(uimage_arch, "CPU", name));
633 }
634 
635 int genimg_get_type_id(const char *name)
636 {
637 	return (get_table_entry_id(uimage_type, "Image", name));
638 }
639 
640 int genimg_get_comp_id(const char *name)
641 {
642 	return (get_table_entry_id(uimage_comp, "Compression", name));
643 }
644 
645 #ifndef USE_HOSTCC
646 /**
647  * genimg_get_format - get image format type
648  * @img_addr: image start address
649  *
650  * genimg_get_format() checks whether provided address points to a valid
651  * legacy or FIT image.
652  *
653  * New uImage format and FDT blob are based on a libfdt. FDT blob
654  * may be passed directly or embedded in a FIT image. In both situations
655  * genimg_get_format() must be able to dectect libfdt header.
656  *
657  * returns:
658  *     image format type or IMAGE_FORMAT_INVALID if no image is present
659  */
660 int genimg_get_format(void *img_addr)
661 {
662 	ulong format = IMAGE_FORMAT_INVALID;
663 	const image_header_t *hdr;
664 #if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
665 	char *fit_hdr;
666 #endif
667 
668 	hdr = (const image_header_t *)img_addr;
669 	if (image_check_magic(hdr))
670 		format = IMAGE_FORMAT_LEGACY;
671 #if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
672 	else {
673 		fit_hdr = (char *)img_addr;
674 		if (fdt_check_header(fit_hdr) == 0)
675 			format = IMAGE_FORMAT_FIT;
676 	}
677 #endif
678 
679 	return format;
680 }
681 
682 /**
683  * genimg_get_image - get image from special storage (if necessary)
684  * @img_addr: image start address
685  *
686  * genimg_get_image() checks if provided image start adddress is located
687  * in a dataflash storage. If so, image is moved to a system RAM memory.
688  *
689  * returns:
690  *     image start address after possible relocation from special storage
691  */
692 ulong genimg_get_image(ulong img_addr)
693 {
694 	ulong ram_addr = img_addr;
695 
696 #ifdef CONFIG_HAS_DATAFLASH
697 	ulong h_size, d_size;
698 
699 	if (addr_dataflash(img_addr)) {
700 		/* ger RAM address */
701 		ram_addr = CONFIG_SYS_LOAD_ADDR;
702 
703 		/* get header size */
704 		h_size = image_get_header_size();
705 #if defined(CONFIG_FIT)
706 		if (sizeof(struct fdt_header) > h_size)
707 			h_size = sizeof(struct fdt_header);
708 #endif
709 
710 		/* read in header */
711 		debug("   Reading image header from dataflash address "
712 			"%08lx to RAM address %08lx\n", img_addr, ram_addr);
713 
714 		read_dataflash(img_addr, h_size, (char *)ram_addr);
715 
716 		/* get data size */
717 		switch (genimg_get_format((void *)ram_addr)) {
718 		case IMAGE_FORMAT_LEGACY:
719 			d_size = image_get_data_size(
720 					(const image_header_t *)ram_addr);
721 			debug("   Legacy format image found at 0x%08lx, "
722 					"size 0x%08lx\n",
723 					ram_addr, d_size);
724 			break;
725 #if defined(CONFIG_FIT)
726 		case IMAGE_FORMAT_FIT:
727 			d_size = fit_get_size((const void *)ram_addr) - h_size;
728 			debug("   FIT/FDT format image found at 0x%08lx, "
729 					"size 0x%08lx\n",
730 					ram_addr, d_size);
731 			break;
732 #endif
733 		default:
734 			printf("   No valid image found at 0x%08lx\n",
735 				img_addr);
736 			return ram_addr;
737 		}
738 
739 		/* read in image data */
740 		debug("   Reading image remaining data from dataflash address "
741 			"%08lx to RAM address %08lx\n", img_addr + h_size,
742 			ram_addr + h_size);
743 
744 		read_dataflash(img_addr + h_size, d_size,
745 				(char *)(ram_addr + h_size));
746 
747 	}
748 #endif /* CONFIG_HAS_DATAFLASH */
749 
750 	return ram_addr;
751 }
752 
753 /**
754  * fit_has_config - check if there is a valid FIT configuration
755  * @images: pointer to the bootm command headers structure
756  *
757  * fit_has_config() checks if there is a FIT configuration in use
758  * (if FTI support is present).
759  *
760  * returns:
761  *     0, no FIT support or no configuration found
762  *     1, configuration found
763  */
764 int genimg_has_config(bootm_headers_t *images)
765 {
766 #if defined(CONFIG_FIT)
767 	if (images->fit_uname_cfg)
768 		return 1;
769 #endif
770 	return 0;
771 }
772 
773 /**
774  * boot_get_ramdisk - main ramdisk handling routine
775  * @argc: command argument count
776  * @argv: command argument list
777  * @images: pointer to the bootm images structure
778  * @arch: expected ramdisk architecture
779  * @rd_start: pointer to a ulong variable, will hold ramdisk start address
780  * @rd_end: pointer to a ulong variable, will hold ramdisk end
781  *
782  * boot_get_ramdisk() is responsible for finding a valid ramdisk image.
783  * Curently supported are the following ramdisk sources:
784  *      - multicomponent kernel/ramdisk image,
785  *      - commandline provided address of decicated ramdisk image.
786  *
787  * returns:
788  *     0, if ramdisk image was found and valid, or skiped
789  *     rd_start and rd_end are set to ramdisk start/end addresses if
790  *     ramdisk image is found and valid
791  *
792  *     1, if ramdisk image is found but corrupted, or invalid
793  *     rd_start and rd_end are set to 0 if no ramdisk exists
794  */
795 int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images,
796 		uint8_t arch, ulong *rd_start, ulong *rd_end)
797 {
798 	ulong rd_addr, rd_load;
799 	ulong rd_data, rd_len;
800 	const image_header_t *rd_hdr;
801 #ifdef CONFIG_SUPPORT_RAW_INITRD
802 	char *end;
803 #endif
804 #if defined(CONFIG_FIT)
805 	void		*fit_hdr;
806 	const char	*fit_uname_config = NULL;
807 	const char	*fit_uname_ramdisk = NULL;
808 	ulong		default_addr;
809 	int		rd_noffset;
810 	int		cfg_noffset;
811 	const void	*data;
812 	size_t		size;
813 #endif
814 
815 	*rd_start = 0;
816 	*rd_end = 0;
817 
818 	/*
819 	 * Look for a '-' which indicates to ignore the
820 	 * ramdisk argument
821 	 */
822 	if ((argc >= 3) && (strcmp(argv[2], "-") ==  0)) {
823 		debug("## Skipping init Ramdisk\n");
824 		rd_len = rd_data = 0;
825 	} else if (argc >= 3 || genimg_has_config(images)) {
826 #if defined(CONFIG_FIT)
827 		if (argc >= 3) {
828 			/*
829 			 * If the init ramdisk comes from the FIT image and
830 			 * the FIT image address is omitted in the command
831 			 * line argument, try to use os FIT image address or
832 			 * default load address.
833 			 */
834 			if (images->fit_uname_os)
835 				default_addr = (ulong)images->fit_hdr_os;
836 			else
837 				default_addr = load_addr;
838 
839 			if (fit_parse_conf(argv[2], default_addr,
840 						&rd_addr, &fit_uname_config)) {
841 				debug("*  ramdisk: config '%s' from image at "
842 						"0x%08lx\n",
843 						fit_uname_config, rd_addr);
844 			} else if (fit_parse_subimage(argv[2], default_addr,
845 						&rd_addr, &fit_uname_ramdisk)) {
846 				debug("*  ramdisk: subimage '%s' from image at "
847 						"0x%08lx\n",
848 						fit_uname_ramdisk, rd_addr);
849 			} else
850 #endif
851 			{
852 				rd_addr = simple_strtoul(argv[2], NULL, 16);
853 				debug("*  ramdisk: cmdline image address = "
854 						"0x%08lx\n",
855 						rd_addr);
856 			}
857 #if defined(CONFIG_FIT)
858 		} else {
859 			/* use FIT configuration provided in first bootm
860 			 * command argument
861 			 */
862 			rd_addr = (ulong)images->fit_hdr_os;
863 			fit_uname_config = images->fit_uname_cfg;
864 			debug("*  ramdisk: using config '%s' from image "
865 					"at 0x%08lx\n",
866 					fit_uname_config, rd_addr);
867 
868 			/*
869 			 * Check whether configuration has ramdisk defined,
870 			 * if not, don't try to use it, quit silently.
871 			 */
872 			fit_hdr = (void *)rd_addr;
873 			cfg_noffset = fit_conf_get_node(fit_hdr,
874 							fit_uname_config);
875 			if (cfg_noffset < 0) {
876 				debug("*  ramdisk: no such config\n");
877 				return 1;
878 			}
879 
880 			rd_noffset = fit_conf_get_ramdisk_node(fit_hdr,
881 								cfg_noffset);
882 			if (rd_noffset < 0) {
883 				debug("*  ramdisk: no ramdisk in config\n");
884 				return 0;
885 			}
886 		}
887 #endif
888 
889 		/* copy from dataflash if needed */
890 		rd_addr = genimg_get_image(rd_addr);
891 
892 		/*
893 		 * Check if there is an initrd image at the
894 		 * address provided in the second bootm argument
895 		 * check image type, for FIT images get FIT node.
896 		 */
897 		switch (genimg_get_format((void *)rd_addr)) {
898 		case IMAGE_FORMAT_LEGACY:
899 			printf("## Loading init Ramdisk from Legacy "
900 					"Image at %08lx ...\n", rd_addr);
901 
902 			bootstage_mark(BOOTSTAGE_ID_CHECK_RAMDISK);
903 			rd_hdr = image_get_ramdisk(rd_addr, arch,
904 							images->verify);
905 
906 			if (rd_hdr == NULL)
907 				return 1;
908 
909 			rd_data = image_get_data(rd_hdr);
910 			rd_len = image_get_data_size(rd_hdr);
911 			rd_load = image_get_load(rd_hdr);
912 			break;
913 #if defined(CONFIG_FIT)
914 		case IMAGE_FORMAT_FIT:
915 			fit_hdr = (void *)rd_addr;
916 			printf("## Loading init Ramdisk from FIT "
917 					"Image at %08lx ...\n", rd_addr);
918 
919 			bootstage_mark(BOOTSTAGE_ID_FIT_RD_FORMAT);
920 			if (!fit_check_format(fit_hdr)) {
921 				puts("Bad FIT ramdisk image format!\n");
922 				bootstage_error(
923 					BOOTSTAGE_ID_FIT_RD_FORMAT);
924 				return 1;
925 			}
926 			bootstage_mark(BOOTSTAGE_ID_FIT_RD_FORMAT_OK);
927 
928 			if (!fit_uname_ramdisk) {
929 				/*
930 				 * no ramdisk image node unit name, try to get config
931 				 * node first. If config unit node name is NULL
932 				 * fit_conf_get_node() will try to find default config node
933 				 */
934 				bootstage_mark(
935 					BOOTSTAGE_ID_FIT_RD_NO_UNIT_NAME);
936 				cfg_noffset = fit_conf_get_node(fit_hdr,
937 							fit_uname_config);
938 				if (cfg_noffset < 0) {
939 					puts("Could not find configuration "
940 						"node\n");
941 					bootstage_error(
942 					BOOTSTAGE_ID_FIT_RD_NO_UNIT_NAME);
943 					return 1;
944 				}
945 				fit_uname_config = fdt_get_name(fit_hdr,
946 							cfg_noffset, NULL);
947 				printf("   Using '%s' configuration\n",
948 					fit_uname_config);
949 
950 				rd_noffset = fit_conf_get_ramdisk_node(fit_hdr,
951 							cfg_noffset);
952 				fit_uname_ramdisk = fit_get_name(fit_hdr,
953 							rd_noffset, NULL);
954 			} else {
955 				/* get ramdisk component image node offset */
956 				bootstage_mark(
957 					BOOTSTAGE_ID_FIT_RD_UNIT_NAME);
958 				rd_noffset = fit_image_get_node(fit_hdr,
959 						fit_uname_ramdisk);
960 			}
961 			if (rd_noffset < 0) {
962 				puts("Could not find subimage node\n");
963 				bootstage_error(BOOTSTAGE_ID_FIT_RD_SUBNODE);
964 				return 1;
965 			}
966 
967 			printf("   Trying '%s' ramdisk subimage\n",
968 				fit_uname_ramdisk);
969 
970 			bootstage_mark(BOOTSTAGE_ID_FIT_RD_CHECK);
971 			if (!fit_check_ramdisk(fit_hdr, rd_noffset, arch,
972 						images->verify))
973 				return 1;
974 
975 			/* get ramdisk image data address and length */
976 			if (fit_image_get_data(fit_hdr, rd_noffset, &data,
977 						&size)) {
978 				puts("Could not find ramdisk subimage data!\n");
979 				bootstage_error(BOOTSTAGE_ID_FIT_RD_GET_DATA);
980 				return 1;
981 			}
982 			bootstage_mark(BOOTSTAGE_ID_FIT_RD_GET_DATA_OK);
983 
984 			rd_data = (ulong)data;
985 			rd_len = size;
986 
987 			if (fit_image_get_load(fit_hdr, rd_noffset, &rd_load)) {
988 				puts("Can't get ramdisk subimage load "
989 					"address!\n");
990 				bootstage_error(BOOTSTAGE_ID_FIT_RD_LOAD);
991 				return 1;
992 			}
993 			bootstage_mark(BOOTSTAGE_ID_FIT_RD_LOAD);
994 
995 			images->fit_hdr_rd = fit_hdr;
996 			images->fit_uname_rd = fit_uname_ramdisk;
997 			images->fit_noffset_rd = rd_noffset;
998 			break;
999 #endif
1000 		default:
1001 #ifdef CONFIG_SUPPORT_RAW_INITRD
1002 			if (argc >= 3 && (end = strchr(argv[2], ':'))) {
1003 				rd_len = simple_strtoul(++end, NULL, 16);
1004 				rd_data = rd_addr;
1005 			} else
1006 #endif
1007 			{
1008 				puts("Wrong Ramdisk Image Format\n");
1009 				rd_data = rd_len = rd_load = 0;
1010 				return 1;
1011 			}
1012 		}
1013 	} else if (images->legacy_hdr_valid &&
1014 			image_check_type(&images->legacy_hdr_os_copy,
1015 						IH_TYPE_MULTI)) {
1016 
1017 		/*
1018 		 * Now check if we have a legacy mult-component image,
1019 		 * get second entry data start address and len.
1020 		 */
1021 		bootstage_mark(BOOTSTAGE_ID_RAMDISK);
1022 		printf("## Loading init Ramdisk from multi component "
1023 				"Legacy Image at %08lx ...\n",
1024 				(ulong)images->legacy_hdr_os);
1025 
1026 		image_multi_getimg(images->legacy_hdr_os, 1, &rd_data, &rd_len);
1027 	} else {
1028 		/*
1029 		 * no initrd image
1030 		 */
1031 		bootstage_mark(BOOTSTAGE_ID_NO_RAMDISK);
1032 		rd_len = rd_data = 0;
1033 	}
1034 
1035 	if (!rd_data) {
1036 		debug("## No init Ramdisk\n");
1037 	} else {
1038 		*rd_start = rd_data;
1039 		*rd_end = rd_data + rd_len;
1040 	}
1041 	debug("   ramdisk start = 0x%08lx, ramdisk end = 0x%08lx\n",
1042 			*rd_start, *rd_end);
1043 
1044 	return 0;
1045 }
1046 
1047 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
1048 /**
1049  * boot_ramdisk_high - relocate init ramdisk
1050  * @lmb: pointer to lmb handle, will be used for memory mgmt
1051  * @rd_data: ramdisk data start address
1052  * @rd_len: ramdisk data length
1053  * @initrd_start: pointer to a ulong variable, will hold final init ramdisk
1054  *      start address (after possible relocation)
1055  * @initrd_end: pointer to a ulong variable, will hold final init ramdisk
1056  *      end address (after possible relocation)
1057  *
1058  * boot_ramdisk_high() takes a relocation hint from "initrd_high" environement
1059  * variable and if requested ramdisk data is moved to a specified location.
1060  *
1061  * Initrd_start and initrd_end are set to final (after relocation) ramdisk
1062  * start/end addresses if ramdisk image start and len were provided,
1063  * otherwise set initrd_start and initrd_end set to zeros.
1064  *
1065  * returns:
1066  *      0 - success
1067  *     -1 - failure
1068  */
1069 int boot_ramdisk_high(struct lmb *lmb, ulong rd_data, ulong rd_len,
1070 		  ulong *initrd_start, ulong *initrd_end)
1071 {
1072 	char	*s;
1073 	ulong	initrd_high;
1074 	int	initrd_copy_to_ram = 1;
1075 
1076 	if ((s = getenv("initrd_high")) != NULL) {
1077 		/* a value of "no" or a similar string will act like 0,
1078 		 * turning the "load high" feature off. This is intentional.
1079 		 */
1080 		initrd_high = simple_strtoul(s, NULL, 16);
1081 		if (initrd_high == ~0)
1082 			initrd_copy_to_ram = 0;
1083 	} else {
1084 		/* not set, no restrictions to load high */
1085 		initrd_high = ~0;
1086 	}
1087 
1088 
1089 #ifdef CONFIG_LOGBUFFER
1090 	/* Prevent initrd from overwriting logbuffer */
1091 	lmb_reserve(lmb, logbuffer_base() - LOGBUFF_OVERHEAD, LOGBUFF_RESERVE);
1092 #endif
1093 
1094 	debug("## initrd_high = 0x%08lx, copy_to_ram = %d\n",
1095 			initrd_high, initrd_copy_to_ram);
1096 
1097 	if (rd_data) {
1098 		if (!initrd_copy_to_ram) {	/* zero-copy ramdisk support */
1099 			debug("   in-place initrd\n");
1100 			*initrd_start = rd_data;
1101 			*initrd_end = rd_data + rd_len;
1102 			lmb_reserve(lmb, rd_data, rd_len);
1103 		} else {
1104 			if (initrd_high)
1105 				*initrd_start = (ulong)lmb_alloc_base(lmb,
1106 						rd_len, 0x1000, initrd_high);
1107 			else
1108 				*initrd_start = (ulong)lmb_alloc(lmb, rd_len,
1109 								 0x1000);
1110 
1111 			if (*initrd_start == 0) {
1112 				puts("ramdisk - allocation error\n");
1113 				goto error;
1114 			}
1115 			bootstage_mark(BOOTSTAGE_ID_COPY_RAMDISK);
1116 
1117 			*initrd_end = *initrd_start + rd_len;
1118 			printf("   Loading Ramdisk to %08lx, end %08lx ... ",
1119 					*initrd_start, *initrd_end);
1120 
1121 			memmove_wd((void *)*initrd_start,
1122 					(void *)rd_data, rd_len, CHUNKSZ);
1123 
1124 #ifdef CONFIG_MP
1125 			/*
1126 			 * Ensure the image is flushed to memory to handle
1127 			 * AMP boot scenarios in which we might not be
1128 			 * HW cache coherent
1129 			 */
1130 			flush_cache((unsigned long)*initrd_start, rd_len);
1131 #endif
1132 			puts("OK\n");
1133 		}
1134 	} else {
1135 		*initrd_start = 0;
1136 		*initrd_end = 0;
1137 	}
1138 	debug("   ramdisk load start = 0x%08lx, ramdisk load end = 0x%08lx\n",
1139 			*initrd_start, *initrd_end);
1140 
1141 	return 0;
1142 
1143 error:
1144 	return -1;
1145 }
1146 #endif /* CONFIG_SYS_BOOT_RAMDISK_HIGH */
1147 
1148 #ifdef CONFIG_OF_LIBFDT
1149 static void fdt_error(const char *msg)
1150 {
1151 	puts("ERROR: ");
1152 	puts(msg);
1153 	puts(" - must RESET the board to recover.\n");
1154 }
1155 
1156 static const image_header_t *image_get_fdt(ulong fdt_addr)
1157 {
1158 	const image_header_t *fdt_hdr = (const image_header_t *)fdt_addr;
1159 
1160 	image_print_contents(fdt_hdr);
1161 
1162 	puts("   Verifying Checksum ... ");
1163 	if (!image_check_hcrc(fdt_hdr)) {
1164 		fdt_error("fdt header checksum invalid");
1165 		return NULL;
1166 	}
1167 
1168 	if (!image_check_dcrc(fdt_hdr)) {
1169 		fdt_error("fdt checksum invalid");
1170 		return NULL;
1171 	}
1172 	puts("OK\n");
1173 
1174 	if (!image_check_type(fdt_hdr, IH_TYPE_FLATDT)) {
1175 		fdt_error("uImage is not a fdt");
1176 		return NULL;
1177 	}
1178 	if (image_get_comp(fdt_hdr) != IH_COMP_NONE) {
1179 		fdt_error("uImage is compressed");
1180 		return NULL;
1181 	}
1182 	if (fdt_check_header((char *)image_get_data(fdt_hdr)) != 0) {
1183 		fdt_error("uImage data is not a fdt");
1184 		return NULL;
1185 	}
1186 	return fdt_hdr;
1187 }
1188 
1189 /**
1190  * fit_check_fdt - verify FIT format FDT subimage
1191  * @fit_hdr: pointer to the FIT  header
1192  * fdt_noffset: FDT subimage node offset within FIT image
1193  * @verify: data CRC verification flag
1194  *
1195  * fit_check_fdt() verifies integrity of the FDT subimage and from
1196  * specified FIT image.
1197  *
1198  * returns:
1199  *     1, on success
1200  *     0, on failure
1201  */
1202 #if defined(CONFIG_FIT)
1203 static int fit_check_fdt(const void *fit, int fdt_noffset, int verify)
1204 {
1205 	fit_image_print(fit, fdt_noffset, "   ");
1206 
1207 	if (verify) {
1208 		puts("   Verifying Hash Integrity ... ");
1209 		if (!fit_image_check_hashes(fit, fdt_noffset)) {
1210 			fdt_error("Bad Data Hash");
1211 			return 0;
1212 		}
1213 		puts("OK\n");
1214 	}
1215 
1216 	if (!fit_image_check_type(fit, fdt_noffset, IH_TYPE_FLATDT)) {
1217 		fdt_error("Not a FDT image");
1218 		return 0;
1219 	}
1220 
1221 	if (!fit_image_check_comp(fit, fdt_noffset, IH_COMP_NONE)) {
1222 		fdt_error("FDT image is compressed");
1223 		return 0;
1224 	}
1225 
1226 	return 1;
1227 }
1228 #endif /* CONFIG_FIT */
1229 
1230 #ifndef CONFIG_SYS_FDT_PAD
1231 #define CONFIG_SYS_FDT_PAD 0x3000
1232 #endif
1233 
1234 #if defined(CONFIG_OF_LIBFDT)
1235 /**
1236  * boot_fdt_add_mem_rsv_regions - Mark the memreserve sections as unusable
1237  * @lmb: pointer to lmb handle, will be used for memory mgmt
1238  * @fdt_blob: pointer to fdt blob base address
1239  *
1240  * Adds the memreserve regions in the dtb to the lmb block.  Adding the
1241  * memreserve regions prevents u-boot from using them to store the initrd
1242  * or the fdt blob.
1243  */
1244 void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob)
1245 {
1246 	uint64_t addr, size;
1247 	int i, total;
1248 
1249 	if (fdt_check_header(fdt_blob) != 0)
1250 		return;
1251 
1252 	total = fdt_num_mem_rsv(fdt_blob);
1253 	for (i = 0; i < total; i++) {
1254 		if (fdt_get_mem_rsv(fdt_blob, i, &addr, &size) != 0)
1255 			continue;
1256 		printf("   reserving fdt memory region: addr=%llx size=%llx\n",
1257 			(unsigned long long)addr, (unsigned long long)size);
1258 		lmb_reserve(lmb, addr, size);
1259 	}
1260 }
1261 
1262 /**
1263  * boot_relocate_fdt - relocate flat device tree
1264  * @lmb: pointer to lmb handle, will be used for memory mgmt
1265  * @of_flat_tree: pointer to a char* variable, will hold fdt start address
1266  * @of_size: pointer to a ulong variable, will hold fdt length
1267  *
1268  * boot_relocate_fdt() allocates a region of memory within the bootmap and
1269  * relocates the of_flat_tree into that region, even if the fdt is already in
1270  * the bootmap.  It also expands the size of the fdt by CONFIG_SYS_FDT_PAD
1271  * bytes.
1272  *
1273  * of_flat_tree and of_size are set to final (after relocation) values
1274  *
1275  * returns:
1276  *      0 - success
1277  *      1 - failure
1278  */
1279 int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size)
1280 {
1281 	void	*fdt_blob = *of_flat_tree;
1282 	void	*of_start = 0;
1283 	char	*fdt_high;
1284 	ulong	of_len = 0;
1285 	int	err;
1286 	int	disable_relocation = 0;
1287 
1288 	/* nothing to do */
1289 	if (*of_size == 0)
1290 		return 0;
1291 
1292 	if (fdt_check_header(fdt_blob) != 0) {
1293 		fdt_error("image is not a fdt");
1294 		goto error;
1295 	}
1296 
1297 	/* position on a 4K boundary before the alloc_current */
1298 	/* Pad the FDT by a specified amount */
1299 	of_len = *of_size + CONFIG_SYS_FDT_PAD;
1300 
1301 	/* If fdt_high is set use it to select the relocation address */
1302 	fdt_high = getenv("fdt_high");
1303 	if (fdt_high) {
1304 		void *desired_addr = (void *)simple_strtoul(fdt_high, NULL, 16);
1305 
1306 		if (((ulong) desired_addr) == ~0UL) {
1307 			/* All ones means use fdt in place */
1308 			of_start = fdt_blob;
1309 			lmb_reserve(lmb, (ulong)of_start, of_len);
1310 			disable_relocation = 1;
1311 		} else if (desired_addr) {
1312 			of_start =
1313 			    (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000,
1314 							   (ulong)desired_addr);
1315 			if (of_start == 0) {
1316 				puts("Failed using fdt_high value for Device Tree");
1317 				goto error;
1318 			}
1319 		} else {
1320 			of_start =
1321 			    (void *)(ulong) lmb_alloc(lmb, of_len, 0x1000);
1322 		}
1323 	} else {
1324 		of_start =
1325 		    (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000,
1326 						   getenv_bootm_mapsize()
1327 						   + getenv_bootm_low());
1328 	}
1329 
1330 	if (of_start == 0) {
1331 		puts("device tree - allocation error\n");
1332 		goto error;
1333 	}
1334 
1335 	if (disable_relocation) {
1336 		/* We assume there is space after the existing fdt to use for padding */
1337 		fdt_set_totalsize(of_start, of_len);
1338 		printf("   Using Device Tree in place at %p, end %p\n",
1339 		       of_start, of_start + of_len - 1);
1340 	} else {
1341 		debug("## device tree at %p ... %p (len=%ld [0x%lX])\n",
1342 			fdt_blob, fdt_blob + *of_size - 1, of_len, of_len);
1343 
1344 		printf("   Loading Device Tree to %p, end %p ... ",
1345 			of_start, of_start + of_len - 1);
1346 
1347 		err = fdt_open_into(fdt_blob, of_start, of_len);
1348 		if (err != 0) {
1349 			fdt_error("fdt move failed");
1350 			goto error;
1351 		}
1352 		puts("OK\n");
1353 	}
1354 
1355 	*of_flat_tree = of_start;
1356 	*of_size = of_len;
1357 
1358 	set_working_fdt_addr(*of_flat_tree);
1359 	return 0;
1360 
1361 error:
1362 	return 1;
1363 }
1364 #endif /* CONFIG_OF_LIBFDT */
1365 
1366 /**
1367  * boot_get_fdt - main fdt handling routine
1368  * @argc: command argument count
1369  * @argv: command argument list
1370  * @images: pointer to the bootm images structure
1371  * @of_flat_tree: pointer to a char* variable, will hold fdt start address
1372  * @of_size: pointer to a ulong variable, will hold fdt length
1373  *
1374  * boot_get_fdt() is responsible for finding a valid flat device tree image.
1375  * Curently supported are the following ramdisk sources:
1376  *      - multicomponent kernel/ramdisk image,
1377  *      - commandline provided address of decicated ramdisk image.
1378  *
1379  * returns:
1380  *     0, if fdt image was found and valid, or skipped
1381  *     of_flat_tree and of_size are set to fdt start address and length if
1382  *     fdt image is found and valid
1383  *
1384  *     1, if fdt image is found but corrupted
1385  *     of_flat_tree and of_size are set to 0 if no fdt exists
1386  */
1387 int boot_get_fdt(int flag, int argc, char * const argv[],
1388 		bootm_headers_t *images, char **of_flat_tree, ulong *of_size)
1389 {
1390 	const image_header_t *fdt_hdr;
1391 	ulong		fdt_addr;
1392 	char		*fdt_blob = NULL;
1393 	ulong		image_start, image_data, image_end;
1394 	ulong		load_start, load_end;
1395 #if defined(CONFIG_FIT)
1396 	void		*fit_hdr;
1397 	const char	*fit_uname_config = NULL;
1398 	const char	*fit_uname_fdt = NULL;
1399 	ulong		default_addr;
1400 	int		cfg_noffset;
1401 	int		fdt_noffset;
1402 	const void	*data;
1403 	size_t		size;
1404 #endif
1405 
1406 	*of_flat_tree = NULL;
1407 	*of_size = 0;
1408 
1409 	if (argc > 3 || genimg_has_config(images)) {
1410 #if defined(CONFIG_FIT)
1411 		if (argc > 3) {
1412 			/*
1413 			 * If the FDT blob comes from the FIT image and the
1414 			 * FIT image address is omitted in the command line
1415 			 * argument, try to use ramdisk or os FIT image
1416 			 * address or default load address.
1417 			 */
1418 			if (images->fit_uname_rd)
1419 				default_addr = (ulong)images->fit_hdr_rd;
1420 			else if (images->fit_uname_os)
1421 				default_addr = (ulong)images->fit_hdr_os;
1422 			else
1423 				default_addr = load_addr;
1424 
1425 			if (fit_parse_conf(argv[3], default_addr,
1426 						&fdt_addr, &fit_uname_config)) {
1427 				debug("*  fdt: config '%s' from image at "
1428 						"0x%08lx\n",
1429 						fit_uname_config, fdt_addr);
1430 			} else if (fit_parse_subimage(argv[3], default_addr,
1431 						&fdt_addr, &fit_uname_fdt)) {
1432 				debug("*  fdt: subimage '%s' from image at "
1433 						"0x%08lx\n",
1434 						fit_uname_fdt, fdt_addr);
1435 			} else
1436 #endif
1437 			{
1438 				fdt_addr = simple_strtoul(argv[3], NULL, 16);
1439 				debug("*  fdt: cmdline image address = "
1440 						"0x%08lx\n",
1441 						fdt_addr);
1442 			}
1443 #if defined(CONFIG_FIT)
1444 		} else {
1445 			/* use FIT configuration provided in first bootm
1446 			 * command argument
1447 			 */
1448 			fdt_addr = (ulong)images->fit_hdr_os;
1449 			fit_uname_config = images->fit_uname_cfg;
1450 			debug("*  fdt: using config '%s' from image "
1451 					"at 0x%08lx\n",
1452 					fit_uname_config, fdt_addr);
1453 
1454 			/*
1455 			 * Check whether configuration has FDT blob defined,
1456 			 * if not quit silently.
1457 			 */
1458 			fit_hdr = (void *)fdt_addr;
1459 			cfg_noffset = fit_conf_get_node(fit_hdr,
1460 					fit_uname_config);
1461 			if (cfg_noffset < 0) {
1462 				debug("*  fdt: no such config\n");
1463 				return 0;
1464 			}
1465 
1466 			fdt_noffset = fit_conf_get_fdt_node(fit_hdr,
1467 					cfg_noffset);
1468 			if (fdt_noffset < 0) {
1469 				debug("*  fdt: no fdt in config\n");
1470 				return 0;
1471 			}
1472 		}
1473 #endif
1474 
1475 		debug("## Checking for 'FDT'/'FDT Image' at %08lx\n",
1476 				fdt_addr);
1477 
1478 		/* copy from dataflash if needed */
1479 		fdt_addr = genimg_get_image(fdt_addr);
1480 
1481 		/*
1482 		 * Check if there is an FDT image at the
1483 		 * address provided in the second bootm argument
1484 		 * check image type, for FIT images get a FIT node.
1485 		 */
1486 		switch (genimg_get_format((void *)fdt_addr)) {
1487 		case IMAGE_FORMAT_LEGACY:
1488 			/* verify fdt_addr points to a valid image header */
1489 			printf("## Flattened Device Tree from Legacy Image "
1490 					"at %08lx\n",
1491 					fdt_addr);
1492 			fdt_hdr = image_get_fdt(fdt_addr);
1493 			if (!fdt_hdr)
1494 				goto error;
1495 
1496 			/*
1497 			 * move image data to the load address,
1498 			 * make sure we don't overwrite initial image
1499 			 */
1500 			image_start = (ulong)fdt_hdr;
1501 			image_data = (ulong)image_get_data(fdt_hdr);
1502 			image_end = image_get_image_end(fdt_hdr);
1503 
1504 			load_start = image_get_load(fdt_hdr);
1505 			load_end = load_start + image_get_data_size(fdt_hdr);
1506 
1507 			if (load_start == image_start ||
1508 			    load_start == image_data) {
1509 				fdt_blob = (char *)image_data;
1510 				break;
1511 			}
1512 
1513 			if ((load_start < image_end) && (load_end > image_start)) {
1514 				fdt_error("fdt overwritten");
1515 				goto error;
1516 			}
1517 
1518 			debug("   Loading FDT from 0x%08lx to 0x%08lx\n",
1519 					image_data, load_start);
1520 
1521 			memmove((void *)load_start,
1522 					(void *)image_data,
1523 					image_get_data_size(fdt_hdr));
1524 
1525 			fdt_blob = (char *)load_start;
1526 			break;
1527 		case IMAGE_FORMAT_FIT:
1528 			/*
1529 			 * This case will catch both: new uImage format
1530 			 * (libfdt based) and raw FDT blob (also libfdt
1531 			 * based).
1532 			 */
1533 #if defined(CONFIG_FIT)
1534 			/* check FDT blob vs FIT blob */
1535 			if (fit_check_format((const void *)fdt_addr)) {
1536 				/*
1537 				 * FIT image
1538 				 */
1539 				fit_hdr = (void *)fdt_addr;
1540 				printf("## Flattened Device Tree from FIT "
1541 						"Image at %08lx\n",
1542 						fdt_addr);
1543 
1544 				if (!fit_uname_fdt) {
1545 					/*
1546 					 * no FDT blob image node unit name,
1547 					 * try to get config node first. If
1548 					 * config unit node name is NULL
1549 					 * fit_conf_get_node() will try to
1550 					 * find default config node
1551 					 */
1552 					cfg_noffset = fit_conf_get_node(fit_hdr,
1553 							fit_uname_config);
1554 
1555 					if (cfg_noffset < 0) {
1556 						fdt_error("Could not find "
1557 							    "configuration "
1558 							    "node\n");
1559 						goto error;
1560 					}
1561 
1562 					fit_uname_config = fdt_get_name(fit_hdr,
1563 							cfg_noffset, NULL);
1564 					printf("   Using '%s' configuration\n",
1565 							fit_uname_config);
1566 
1567 					fdt_noffset = fit_conf_get_fdt_node(
1568 							fit_hdr,
1569 							cfg_noffset);
1570 					fit_uname_fdt = fit_get_name(fit_hdr,
1571 							fdt_noffset, NULL);
1572 				} else {
1573 					/* get FDT component image node offset */
1574 					fdt_noffset = fit_image_get_node(
1575 								fit_hdr,
1576 								fit_uname_fdt);
1577 				}
1578 				if (fdt_noffset < 0) {
1579 					fdt_error("Could not find subimage "
1580 							"node\n");
1581 					goto error;
1582 				}
1583 
1584 				printf("   Trying '%s' FDT blob subimage\n",
1585 						fit_uname_fdt);
1586 
1587 				if (!fit_check_fdt(fit_hdr, fdt_noffset,
1588 							images->verify))
1589 					goto error;
1590 
1591 				/* get ramdisk image data address and length */
1592 				if (fit_image_get_data(fit_hdr, fdt_noffset,
1593 							&data, &size)) {
1594 					fdt_error("Could not find FDT "
1595 							"subimage data");
1596 					goto error;
1597 				}
1598 
1599 				/* verift that image data is a proper FDT blob */
1600 				if (fdt_check_header((char *)data) != 0) {
1601 					fdt_error("Subimage data is not a FTD");
1602 					goto error;
1603 				}
1604 
1605 				/*
1606 				 * move image data to the load address,
1607 				 * make sure we don't overwrite initial image
1608 				 */
1609 				image_start = (ulong)fit_hdr;
1610 				image_end = fit_get_end(fit_hdr);
1611 
1612 				if (fit_image_get_load(fit_hdr, fdt_noffset,
1613 							&load_start) == 0) {
1614 					load_end = load_start + size;
1615 
1616 					if ((load_start < image_end) &&
1617 							(load_end > image_start)) {
1618 						fdt_error("FDT overwritten");
1619 						goto error;
1620 					}
1621 
1622 					printf("   Loading FDT from 0x%08lx "
1623 							"to 0x%08lx\n",
1624 							(ulong)data,
1625 							load_start);
1626 
1627 					memmove((void *)load_start,
1628 							(void *)data, size);
1629 
1630 					fdt_blob = (char *)load_start;
1631 				} else {
1632 					fdt_blob = (char *)data;
1633 				}
1634 
1635 				images->fit_hdr_fdt = fit_hdr;
1636 				images->fit_uname_fdt = fit_uname_fdt;
1637 				images->fit_noffset_fdt = fdt_noffset;
1638 				break;
1639 			} else
1640 #endif
1641 			{
1642 				/*
1643 				 * FDT blob
1644 				 */
1645 				fdt_blob = (char *)fdt_addr;
1646 				debug("*  fdt: raw FDT blob\n");
1647 				printf("## Flattened Device Tree blob at "
1648 					"%08lx\n", (long)fdt_blob);
1649 			}
1650 			break;
1651 		default:
1652 			puts("ERROR: Did not find a cmdline Flattened Device "
1653 				"Tree\n");
1654 			goto error;
1655 		}
1656 
1657 		printf("   Booting using the fdt blob at 0x%p\n", fdt_blob);
1658 
1659 	} else if (images->legacy_hdr_valid &&
1660 			image_check_type(&images->legacy_hdr_os_copy,
1661 						IH_TYPE_MULTI)) {
1662 
1663 		ulong fdt_data, fdt_len;
1664 
1665 		/*
1666 		 * Now check if we have a legacy multi-component image,
1667 		 * get second entry data start address and len.
1668 		 */
1669 		printf("## Flattened Device Tree from multi "
1670 			"component Image at %08lX\n",
1671 			(ulong)images->legacy_hdr_os);
1672 
1673 		image_multi_getimg(images->legacy_hdr_os, 2, &fdt_data,
1674 					&fdt_len);
1675 		if (fdt_len) {
1676 
1677 			fdt_blob = (char *)fdt_data;
1678 			printf("   Booting using the fdt at 0x%p\n", fdt_blob);
1679 
1680 			if (fdt_check_header(fdt_blob) != 0) {
1681 				fdt_error("image is not a fdt");
1682 				goto error;
1683 			}
1684 
1685 			if (fdt_totalsize(fdt_blob) != fdt_len) {
1686 				fdt_error("fdt size != image size");
1687 				goto error;
1688 			}
1689 		} else {
1690 			debug("## No Flattened Device Tree\n");
1691 			return 0;
1692 		}
1693 	} else {
1694 		debug("## No Flattened Device Tree\n");
1695 		return 0;
1696 	}
1697 
1698 	*of_flat_tree = fdt_blob;
1699 	*of_size = fdt_totalsize(fdt_blob);
1700 	debug("   of_flat_tree at 0x%08lx size 0x%08lx\n",
1701 			(ulong)*of_flat_tree, *of_size);
1702 
1703 	return 0;
1704 
1705 error:
1706 	*of_flat_tree = 0;
1707 	*of_size = 0;
1708 	return 1;
1709 }
1710 #endif /* CONFIG_OF_LIBFDT */
1711 
1712 #ifdef CONFIG_SYS_BOOT_GET_CMDLINE
1713 /**
1714  * boot_get_cmdline - allocate and initialize kernel cmdline
1715  * @lmb: pointer to lmb handle, will be used for memory mgmt
1716  * @cmd_start: pointer to a ulong variable, will hold cmdline start
1717  * @cmd_end: pointer to a ulong variable, will hold cmdline end
1718  *
1719  * boot_get_cmdline() allocates space for kernel command line below
1720  * BOOTMAPSZ + getenv_bootm_low() address. If "bootargs" U-boot environemnt
1721  * variable is present its contents is copied to allocated kernel
1722  * command line.
1723  *
1724  * returns:
1725  *      0 - success
1726  *     -1 - failure
1727  */
1728 int boot_get_cmdline(struct lmb *lmb, ulong *cmd_start, ulong *cmd_end)
1729 {
1730 	char *cmdline;
1731 	char *s;
1732 
1733 	cmdline = (char *)(ulong)lmb_alloc_base(lmb, CONFIG_SYS_BARGSIZE, 0xf,
1734 				getenv_bootm_mapsize() + getenv_bootm_low());
1735 
1736 	if (cmdline == NULL)
1737 		return -1;
1738 
1739 	if ((s = getenv("bootargs")) == NULL)
1740 		s = "";
1741 
1742 	strcpy(cmdline, s);
1743 
1744 	*cmd_start = (ulong) & cmdline[0];
1745 	*cmd_end = *cmd_start + strlen(cmdline);
1746 
1747 	debug("## cmdline at 0x%08lx ... 0x%08lx\n", *cmd_start, *cmd_end);
1748 
1749 	return 0;
1750 }
1751 #endif /* CONFIG_SYS_BOOT_GET_CMDLINE */
1752 
1753 #ifdef CONFIG_SYS_BOOT_GET_KBD
1754 /**
1755  * boot_get_kbd - allocate and initialize kernel copy of board info
1756  * @lmb: pointer to lmb handle, will be used for memory mgmt
1757  * @kbd: double pointer to board info data
1758  *
1759  * boot_get_kbd() allocates space for kernel copy of board info data below
1760  * BOOTMAPSZ + getenv_bootm_low() address and kernel board info is initialized
1761  * with the current u-boot board info data.
1762  *
1763  * returns:
1764  *      0 - success
1765  *     -1 - failure
1766  */
1767 int boot_get_kbd(struct lmb *lmb, bd_t **kbd)
1768 {
1769 	*kbd = (bd_t *)(ulong)lmb_alloc_base(lmb, sizeof(bd_t), 0xf,
1770 				getenv_bootm_mapsize() + getenv_bootm_low());
1771 	if (*kbd == NULL)
1772 		return -1;
1773 
1774 	**kbd = *(gd->bd);
1775 
1776 	debug("## kernel board info at 0x%08lx\n", (ulong)*kbd);
1777 
1778 #if defined(DEBUG) && defined(CONFIG_CMD_BDI)
1779 	do_bdinfo(NULL, 0, 0, NULL);
1780 #endif
1781 
1782 	return 0;
1783 }
1784 #endif /* CONFIG_SYS_BOOT_GET_KBD */
1785 #endif /* !USE_HOSTCC */
1786 
1787 #if defined(CONFIG_FIT)
1788 /*****************************************************************************/
1789 /* New uImage format routines */
1790 /*****************************************************************************/
1791 #ifndef USE_HOSTCC
1792 static int fit_parse_spec(const char *spec, char sepc, ulong addr_curr,
1793 		ulong *addr, const char **name)
1794 {
1795 	const char *sep;
1796 
1797 	*addr = addr_curr;
1798 	*name = NULL;
1799 
1800 	sep = strchr(spec, sepc);
1801 	if (sep) {
1802 		if (sep - spec > 0)
1803 			*addr = simple_strtoul(spec, NULL, 16);
1804 
1805 		*name = sep + 1;
1806 		return 1;
1807 	}
1808 
1809 	return 0;
1810 }
1811 
1812 /**
1813  * fit_parse_conf - parse FIT configuration spec
1814  * @spec: input string, containing configuration spec
1815  * @add_curr: current image address (to be used as a possible default)
1816  * @addr: pointer to a ulong variable, will hold FIT image address of a given
1817  * configuration
1818  * @conf_name double pointer to a char, will hold pointer to a configuration
1819  * unit name
1820  *
1821  * fit_parse_conf() expects configuration spec in the for of [<addr>]#<conf>,
1822  * where <addr> is a FIT image address that contains configuration
1823  * with a <conf> unit name.
1824  *
1825  * Address part is optional, and if omitted default add_curr will
1826  * be used instead.
1827  *
1828  * returns:
1829  *     1 if spec is a valid configuration string,
1830  *     addr and conf_name are set accordingly
1831  *     0 otherwise
1832  */
1833 int fit_parse_conf(const char *spec, ulong addr_curr,
1834 		ulong *addr, const char **conf_name)
1835 {
1836 	return fit_parse_spec(spec, '#', addr_curr, addr, conf_name);
1837 }
1838 
1839 /**
1840  * fit_parse_subimage - parse FIT subimage spec
1841  * @spec: input string, containing subimage spec
1842  * @add_curr: current image address (to be used as a possible default)
1843  * @addr: pointer to a ulong variable, will hold FIT image address of a given
1844  * subimage
1845  * @image_name: double pointer to a char, will hold pointer to a subimage name
1846  *
1847  * fit_parse_subimage() expects subimage spec in the for of
1848  * [<addr>]:<subimage>, where <addr> is a FIT image address that contains
1849  * subimage with a <subimg> unit name.
1850  *
1851  * Address part is optional, and if omitted default add_curr will
1852  * be used instead.
1853  *
1854  * returns:
1855  *     1 if spec is a valid subimage string,
1856  *     addr and image_name are set accordingly
1857  *     0 otherwise
1858  */
1859 int fit_parse_subimage(const char *spec, ulong addr_curr,
1860 		ulong *addr, const char **image_name)
1861 {
1862 	return fit_parse_spec(spec, ':', addr_curr, addr, image_name);
1863 }
1864 #endif /* !USE_HOSTCC */
1865 
1866 static void fit_get_debug(const void *fit, int noffset,
1867 		char *prop_name, int err)
1868 {
1869 	debug("Can't get '%s' property from FIT 0x%08lx, "
1870 		"node: offset %d, name %s (%s)\n",
1871 		prop_name, (ulong)fit, noffset,
1872 		fit_get_name(fit, noffset, NULL),
1873 		fdt_strerror(err));
1874 }
1875 
1876 /**
1877  * fit_print_contents - prints out the contents of the FIT format image
1878  * @fit: pointer to the FIT format image header
1879  * @p: pointer to prefix string
1880  *
1881  * fit_print_contents() formats a multi line FIT image contents description.
1882  * The routine prints out FIT image properties (root node level) follwed by
1883  * the details of each component image.
1884  *
1885  * returns:
1886  *     no returned results
1887  */
1888 void fit_print_contents(const void *fit)
1889 {
1890 	char *desc;
1891 	char *uname;
1892 	int images_noffset;
1893 	int confs_noffset;
1894 	int noffset;
1895 	int ndepth;
1896 	int count = 0;
1897 	int ret;
1898 	const char *p;
1899 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
1900 	time_t timestamp;
1901 #endif
1902 
1903 #ifdef USE_HOSTCC
1904 	p = "";
1905 #else
1906 	p = "   ";
1907 #endif
1908 
1909 	/* Root node properties */
1910 	ret = fit_get_desc(fit, 0, &desc);
1911 	printf("%sFIT description: ", p);
1912 	if (ret)
1913 		printf("unavailable\n");
1914 	else
1915 		printf("%s\n", desc);
1916 
1917 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
1918 	ret = fit_get_timestamp(fit, 0, &timestamp);
1919 	printf("%sCreated:         ", p);
1920 	if (ret)
1921 		printf("unavailable\n");
1922 	else
1923 		genimg_print_time(timestamp);
1924 #endif
1925 
1926 	/* Find images parent node offset */
1927 	images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
1928 	if (images_noffset < 0) {
1929 		printf("Can't find images parent node '%s' (%s)\n",
1930 			FIT_IMAGES_PATH, fdt_strerror(images_noffset));
1931 		return;
1932 	}
1933 
1934 	/* Process its subnodes, print out component images details */
1935 	for (ndepth = 0, count = 0,
1936 		noffset = fdt_next_node(fit, images_noffset, &ndepth);
1937 	     (noffset >= 0) && (ndepth > 0);
1938 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
1939 		if (ndepth == 1) {
1940 			/*
1941 			 * Direct child node of the images parent node,
1942 			 * i.e. component image node.
1943 			 */
1944 			printf("%s Image %u (%s)\n", p, count++,
1945 					fit_get_name(fit, noffset, NULL));
1946 
1947 			fit_image_print(fit, noffset, p);
1948 		}
1949 	}
1950 
1951 	/* Find configurations parent node offset */
1952 	confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH);
1953 	if (confs_noffset < 0) {
1954 		debug("Can't get configurations parent node '%s' (%s)\n",
1955 			FIT_CONFS_PATH, fdt_strerror(confs_noffset));
1956 		return;
1957 	}
1958 
1959 	/* get default configuration unit name from default property */
1960 	uname = (char *)fdt_getprop(fit, noffset, FIT_DEFAULT_PROP, NULL);
1961 	if (uname)
1962 		printf("%s Default Configuration: '%s'\n", p, uname);
1963 
1964 	/* Process its subnodes, print out configurations details */
1965 	for (ndepth = 0, count = 0,
1966 		noffset = fdt_next_node(fit, confs_noffset, &ndepth);
1967 	     (noffset >= 0) && (ndepth > 0);
1968 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
1969 		if (ndepth == 1) {
1970 			/*
1971 			 * Direct child node of the configurations parent node,
1972 			 * i.e. configuration node.
1973 			 */
1974 			printf("%s Configuration %u (%s)\n", p, count++,
1975 					fit_get_name(fit, noffset, NULL));
1976 
1977 			fit_conf_print(fit, noffset, p);
1978 		}
1979 	}
1980 }
1981 
1982 /**
1983  * fit_image_print - prints out the FIT component image details
1984  * @fit: pointer to the FIT format image header
1985  * @image_noffset: offset of the component image node
1986  * @p: pointer to prefix string
1987  *
1988  * fit_image_print() lists all mandatory properies for the processed component
1989  * image. If present, hash nodes are printed out as well. Load
1990  * address for images of type firmware is also printed out. Since the load
1991  * address is not mandatory for firmware images, it will be output as
1992  * "unavailable" when not present.
1993  *
1994  * returns:
1995  *     no returned results
1996  */
1997 void fit_image_print(const void *fit, int image_noffset, const char *p)
1998 {
1999 	char *desc;
2000 	uint8_t type, arch, os, comp;
2001 	size_t size;
2002 	ulong load, entry;
2003 	const void *data;
2004 	int noffset;
2005 	int ndepth;
2006 	int ret;
2007 
2008 	/* Mandatory properties */
2009 	ret = fit_get_desc(fit, image_noffset, &desc);
2010 	printf("%s  Description:  ", p);
2011 	if (ret)
2012 		printf("unavailable\n");
2013 	else
2014 		printf("%s\n", desc);
2015 
2016 	fit_image_get_type(fit, image_noffset, &type);
2017 	printf("%s  Type:         %s\n", p, genimg_get_type_name(type));
2018 
2019 	fit_image_get_comp(fit, image_noffset, &comp);
2020 	printf("%s  Compression:  %s\n", p, genimg_get_comp_name(comp));
2021 
2022 	ret = fit_image_get_data(fit, image_noffset, &data, &size);
2023 
2024 #ifndef USE_HOSTCC
2025 	printf("%s  Data Start:   ", p);
2026 	if (ret)
2027 		printf("unavailable\n");
2028 	else
2029 		printf("0x%08lx\n", (ulong)data);
2030 #endif
2031 
2032 	printf("%s  Data Size:    ", p);
2033 	if (ret)
2034 		printf("unavailable\n");
2035 	else
2036 		genimg_print_size(size);
2037 
2038 	/* Remaining, type dependent properties */
2039 	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
2040 	    (type == IH_TYPE_RAMDISK) || (type == IH_TYPE_FIRMWARE) ||
2041 	    (type == IH_TYPE_FLATDT)) {
2042 		fit_image_get_arch(fit, image_noffset, &arch);
2043 		printf("%s  Architecture: %s\n", p, genimg_get_arch_name(arch));
2044 	}
2045 
2046 	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_RAMDISK)) {
2047 		fit_image_get_os(fit, image_noffset, &os);
2048 		printf("%s  OS:           %s\n", p, genimg_get_os_name(os));
2049 	}
2050 
2051 	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
2052 		(type == IH_TYPE_FIRMWARE) || (type == IH_TYPE_RAMDISK)) {
2053 		ret = fit_image_get_load(fit, image_noffset, &load);
2054 		printf("%s  Load Address: ", p);
2055 		if (ret)
2056 			printf("unavailable\n");
2057 		else
2058 			printf("0x%08lx\n", load);
2059 	}
2060 
2061 	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
2062 		(type == IH_TYPE_RAMDISK)) {
2063 		fit_image_get_entry(fit, image_noffset, &entry);
2064 		printf("%s  Entry Point:  ", p);
2065 		if (ret)
2066 			printf("unavailable\n");
2067 		else
2068 			printf("0x%08lx\n", entry);
2069 	}
2070 
2071 	/* Process all hash subnodes of the component image node */
2072 	for (ndepth = 0, noffset = fdt_next_node(fit, image_noffset, &ndepth);
2073 	     (noffset >= 0) && (ndepth > 0);
2074 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
2075 		if (ndepth == 1) {
2076 			/* Direct child node of the component image node */
2077 			fit_image_print_hash(fit, noffset, p);
2078 		}
2079 	}
2080 }
2081 
2082 /**
2083  * fit_image_print_hash - prints out the hash node details
2084  * @fit: pointer to the FIT format image header
2085  * @noffset: offset of the hash node
2086  * @p: pointer to prefix string
2087  *
2088  * fit_image_print_hash() lists properies for the processed hash node
2089  *
2090  * returns:
2091  *     no returned results
2092  */
2093 void fit_image_print_hash(const void *fit, int noffset, const char *p)
2094 {
2095 	char *algo;
2096 	uint8_t *value;
2097 	int value_len;
2098 	int i, ret;
2099 
2100 	/*
2101 	 * Check subnode name, must be equal to "hash".
2102 	 * Multiple hash nodes require unique unit node
2103 	 * names, e.g. hash@1, hash@2, etc.
2104 	 */
2105 	if (strncmp(fit_get_name(fit, noffset, NULL),
2106 			FIT_HASH_NODENAME,
2107 			strlen(FIT_HASH_NODENAME)) != 0)
2108 		return;
2109 
2110 	debug("%s  Hash node:    '%s'\n", p,
2111 			fit_get_name(fit, noffset, NULL));
2112 
2113 	printf("%s  Hash algo:    ", p);
2114 	if (fit_image_hash_get_algo(fit, noffset, &algo)) {
2115 		printf("invalid/unsupported\n");
2116 		return;
2117 	}
2118 	printf("%s\n", algo);
2119 
2120 	ret = fit_image_hash_get_value(fit, noffset, &value,
2121 					&value_len);
2122 	printf("%s  Hash value:   ", p);
2123 	if (ret) {
2124 		printf("unavailable\n");
2125 	} else {
2126 		for (i = 0; i < value_len; i++)
2127 			printf("%02x", value[i]);
2128 		printf("\n");
2129 	}
2130 
2131 	debug("%s  Hash len:     %d\n", p, value_len);
2132 }
2133 
2134 /**
2135  * fit_get_desc - get node description property
2136  * @fit: pointer to the FIT format image header
2137  * @noffset: node offset
2138  * @desc: double pointer to the char, will hold pointer to the descrption
2139  *
2140  * fit_get_desc() reads description property from a given node, if
2141  * description is found pointer to it is returened in third call argument.
2142  *
2143  * returns:
2144  *     0, on success
2145  *     -1, on failure
2146  */
2147 int fit_get_desc(const void *fit, int noffset, char **desc)
2148 {
2149 	int len;
2150 
2151 	*desc = (char *)fdt_getprop(fit, noffset, FIT_DESC_PROP, &len);
2152 	if (*desc == NULL) {
2153 		fit_get_debug(fit, noffset, FIT_DESC_PROP, len);
2154 		return -1;
2155 	}
2156 
2157 	return 0;
2158 }
2159 
2160 /**
2161  * fit_get_timestamp - get node timestamp property
2162  * @fit: pointer to the FIT format image header
2163  * @noffset: node offset
2164  * @timestamp: pointer to the time_t, will hold read timestamp
2165  *
2166  * fit_get_timestamp() reads timestamp poperty from given node, if timestamp
2167  * is found and has a correct size its value is retured in third call
2168  * argument.
2169  *
2170  * returns:
2171  *     0, on success
2172  *     -1, on property read failure
2173  *     -2, on wrong timestamp size
2174  */
2175 int fit_get_timestamp(const void *fit, int noffset, time_t *timestamp)
2176 {
2177 	int len;
2178 	const void *data;
2179 
2180 	data = fdt_getprop(fit, noffset, FIT_TIMESTAMP_PROP, &len);
2181 	if (data == NULL) {
2182 		fit_get_debug(fit, noffset, FIT_TIMESTAMP_PROP, len);
2183 		return -1;
2184 	}
2185 	if (len != sizeof(uint32_t)) {
2186 		debug("FIT timestamp with incorrect size of (%u)\n", len);
2187 		return -2;
2188 	}
2189 
2190 	*timestamp = uimage_to_cpu(*((uint32_t *)data));
2191 	return 0;
2192 }
2193 
2194 /**
2195  * fit_image_get_node - get node offset for component image of a given unit name
2196  * @fit: pointer to the FIT format image header
2197  * @image_uname: component image node unit name
2198  *
2199  * fit_image_get_node() finds a component image (withing the '/images'
2200  * node) of a provided unit name. If image is found its node offset is
2201  * returned to the caller.
2202  *
2203  * returns:
2204  *     image node offset when found (>=0)
2205  *     negative number on failure (FDT_ERR_* code)
2206  */
2207 int fit_image_get_node(const void *fit, const char *image_uname)
2208 {
2209 	int noffset, images_noffset;
2210 
2211 	images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
2212 	if (images_noffset < 0) {
2213 		debug("Can't find images parent node '%s' (%s)\n",
2214 			FIT_IMAGES_PATH, fdt_strerror(images_noffset));
2215 		return images_noffset;
2216 	}
2217 
2218 	noffset = fdt_subnode_offset(fit, images_noffset, image_uname);
2219 	if (noffset < 0) {
2220 		debug("Can't get node offset for image unit name: '%s' (%s)\n",
2221 			image_uname, fdt_strerror(noffset));
2222 	}
2223 
2224 	return noffset;
2225 }
2226 
2227 /**
2228  * fit_image_get_os - get os id for a given component image node
2229  * @fit: pointer to the FIT format image header
2230  * @noffset: component image node offset
2231  * @os: pointer to the uint8_t, will hold os numeric id
2232  *
2233  * fit_image_get_os() finds os 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_os(const void *fit, int noffset, uint8_t *os)
2242 {
2243 	int len;
2244 	const void *data;
2245 
2246 	/* Get OS name from property data */
2247 	data = fdt_getprop(fit, noffset, FIT_OS_PROP, &len);
2248 	if (data == NULL) {
2249 		fit_get_debug(fit, noffset, FIT_OS_PROP, len);
2250 		*os = -1;
2251 		return -1;
2252 	}
2253 
2254 	/* Translate OS name to id */
2255 	*os = genimg_get_os_id(data);
2256 	return 0;
2257 }
2258 
2259 /**
2260  * fit_image_get_arch - get arch id for a given component image node
2261  * @fit: pointer to the FIT format image header
2262  * @noffset: component image node offset
2263  * @arch: pointer to the uint8_t, will hold arch numeric id
2264  *
2265  * fit_image_get_arch() finds arch 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_arch(const void *fit, int noffset, uint8_t *arch)
2274 {
2275 	int len;
2276 	const void *data;
2277 
2278 	/* Get architecture name from property data */
2279 	data = fdt_getprop(fit, noffset, FIT_ARCH_PROP, &len);
2280 	if (data == NULL) {
2281 		fit_get_debug(fit, noffset, FIT_ARCH_PROP, len);
2282 		*arch = -1;
2283 		return -1;
2284 	}
2285 
2286 	/* Translate architecture name to id */
2287 	*arch = genimg_get_arch_id(data);
2288 	return 0;
2289 }
2290 
2291 /**
2292  * fit_image_get_type - get type id for a given component image node
2293  * @fit: pointer to the FIT format image header
2294  * @noffset: component image node offset
2295  * @type: pointer to the uint8_t, will hold type numeric id
2296  *
2297  * fit_image_get_type() finds type 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_type(const void *fit, int noffset, uint8_t *type)
2306 {
2307 	int len;
2308 	const void *data;
2309 
2310 	/* Get image type name from property data */
2311 	data = fdt_getprop(fit, noffset, FIT_TYPE_PROP, &len);
2312 	if (data == NULL) {
2313 		fit_get_debug(fit, noffset, FIT_TYPE_PROP, len);
2314 		*type = -1;
2315 		return -1;
2316 	}
2317 
2318 	/* Translate image type name to id */
2319 	*type = genimg_get_type_id(data);
2320 	return 0;
2321 }
2322 
2323 /**
2324  * fit_image_get_comp - get comp id for a given component image node
2325  * @fit: pointer to the FIT format image header
2326  * @noffset: component image node offset
2327  * @comp: pointer to the uint8_t, will hold comp numeric id
2328  *
2329  * fit_image_get_comp() finds comp property in a given component image node.
2330  * If the property is found, its (string) value is translated to the numeric
2331  * id which is returned to the caller.
2332  *
2333  * returns:
2334  *     0, on success
2335  *     -1, on failure
2336  */
2337 int fit_image_get_comp(const void *fit, int noffset, uint8_t *comp)
2338 {
2339 	int len;
2340 	const void *data;
2341 
2342 	/* Get compression name from property data */
2343 	data = fdt_getprop(fit, noffset, FIT_COMP_PROP, &len);
2344 	if (data == NULL) {
2345 		fit_get_debug(fit, noffset, FIT_COMP_PROP, len);
2346 		*comp = -1;
2347 		return -1;
2348 	}
2349 
2350 	/* Translate compression name to id */
2351 	*comp = genimg_get_comp_id(data);
2352 	return 0;
2353 }
2354 
2355 /**
2356  * fit_image_get_load - get load address property for a given component image node
2357  * @fit: pointer to the FIT format image header
2358  * @noffset: component image node offset
2359  * @load: pointer to the uint32_t, will hold load address
2360  *
2361  * fit_image_get_load() finds load address property in a given component image node.
2362  * If the property is found, its value is returned to the caller.
2363  *
2364  * returns:
2365  *     0, on success
2366  *     -1, on failure
2367  */
2368 int fit_image_get_load(const void *fit, int noffset, ulong *load)
2369 {
2370 	int len;
2371 	const uint32_t *data;
2372 
2373 	data = fdt_getprop(fit, noffset, FIT_LOAD_PROP, &len);
2374 	if (data == NULL) {
2375 		fit_get_debug(fit, noffset, FIT_LOAD_PROP, len);
2376 		return -1;
2377 	}
2378 
2379 	*load = uimage_to_cpu(*data);
2380 	return 0;
2381 }
2382 
2383 /**
2384  * fit_image_get_entry - get entry point address property for a given component image node
2385  * @fit: pointer to the FIT format image header
2386  * @noffset: component image node offset
2387  * @entry: pointer to the uint32_t, will hold entry point address
2388  *
2389  * fit_image_get_entry() finds entry point address property in a given component image node.
2390  * If the property is found, its value is returned to the caller.
2391  *
2392  * returns:
2393  *     0, on success
2394  *     -1, on failure
2395  */
2396 int fit_image_get_entry(const void *fit, int noffset, ulong *entry)
2397 {
2398 	int len;
2399 	const uint32_t *data;
2400 
2401 	data = fdt_getprop(fit, noffset, FIT_ENTRY_PROP, &len);
2402 	if (data == NULL) {
2403 		fit_get_debug(fit, noffset, FIT_ENTRY_PROP, len);
2404 		return -1;
2405 	}
2406 
2407 	*entry = uimage_to_cpu(*data);
2408 	return 0;
2409 }
2410 
2411 /**
2412  * fit_image_get_data - get data property and its size for a given component image node
2413  * @fit: pointer to the FIT format image header
2414  * @noffset: component image node offset
2415  * @data: double pointer to void, will hold data property's data address
2416  * @size: pointer to size_t, will hold data property's data size
2417  *
2418  * fit_image_get_data() finds data property in a given component image node.
2419  * If the property is found its data start address and size are returned to
2420  * the caller.
2421  *
2422  * returns:
2423  *     0, on success
2424  *     -1, on failure
2425  */
2426 int fit_image_get_data(const void *fit, int noffset,
2427 		const void **data, size_t *size)
2428 {
2429 	int len;
2430 
2431 	*data = fdt_getprop(fit, noffset, FIT_DATA_PROP, &len);
2432 	if (*data == NULL) {
2433 		fit_get_debug(fit, noffset, FIT_DATA_PROP, len);
2434 		*size = 0;
2435 		return -1;
2436 	}
2437 
2438 	*size = len;
2439 	return 0;
2440 }
2441 
2442 /**
2443  * fit_image_hash_get_algo - get hash algorithm name
2444  * @fit: pointer to the FIT format image header
2445  * @noffset: hash node offset
2446  * @algo: double pointer to char, will hold pointer to the algorithm name
2447  *
2448  * fit_image_hash_get_algo() finds hash algorithm property in a given hash node.
2449  * If the property is found its data start address is returned to the caller.
2450  *
2451  * returns:
2452  *     0, on success
2453  *     -1, on failure
2454  */
2455 int fit_image_hash_get_algo(const void *fit, int noffset, char **algo)
2456 {
2457 	int len;
2458 
2459 	*algo = (char *)fdt_getprop(fit, noffset, FIT_ALGO_PROP, &len);
2460 	if (*algo == NULL) {
2461 		fit_get_debug(fit, noffset, FIT_ALGO_PROP, len);
2462 		return -1;
2463 	}
2464 
2465 	return 0;
2466 }
2467 
2468 /**
2469  * fit_image_hash_get_value - get hash value and length
2470  * @fit: pointer to the FIT format image header
2471  * @noffset: hash node offset
2472  * @value: double pointer to uint8_t, will hold address of a hash value data
2473  * @value_len: pointer to an int, will hold hash data length
2474  *
2475  * fit_image_hash_get_value() finds hash value property in a given hash node.
2476  * If the property is found its data start address and size are returned to
2477  * the caller.
2478  *
2479  * returns:
2480  *     0, on success
2481  *     -1, on failure
2482  */
2483 int fit_image_hash_get_value(const void *fit, int noffset, uint8_t **value,
2484 				int *value_len)
2485 {
2486 	int len;
2487 
2488 	*value = (uint8_t *)fdt_getprop(fit, noffset, FIT_VALUE_PROP, &len);
2489 	if (*value == NULL) {
2490 		fit_get_debug(fit, noffset, FIT_VALUE_PROP, len);
2491 		*value_len = 0;
2492 		return -1;
2493 	}
2494 
2495 	*value_len = len;
2496 	return 0;
2497 }
2498 
2499 /**
2500  * fit_set_timestamp - set node timestamp property
2501  * @fit: pointer to the FIT format image header
2502  * @noffset: node offset
2503  * @timestamp: timestamp value to be set
2504  *
2505  * fit_set_timestamp() attempts to set timestamp property in the requested
2506  * node and returns operation status to the caller.
2507  *
2508  * returns:
2509  *     0, on success
2510  *     -1, on property read failure
2511  */
2512 int fit_set_timestamp(void *fit, int noffset, time_t timestamp)
2513 {
2514 	uint32_t t;
2515 	int ret;
2516 
2517 	t = cpu_to_uimage(timestamp);
2518 	ret = fdt_setprop(fit, noffset, FIT_TIMESTAMP_PROP, &t,
2519 				sizeof(uint32_t));
2520 	if (ret) {
2521 		printf("Can't set '%s' property for '%s' node (%s)\n",
2522 			FIT_TIMESTAMP_PROP, fit_get_name(fit, noffset, NULL),
2523 			fdt_strerror(ret));
2524 		return -1;
2525 	}
2526 
2527 	return 0;
2528 }
2529 
2530 /**
2531  * calculate_hash - calculate and return hash for provided input data
2532  * @data: pointer to the input data
2533  * @data_len: data length
2534  * @algo: requested hash algorithm
2535  * @value: pointer to the char, will hold hash value data (caller must
2536  * allocate enough free space)
2537  * value_len: length of the calculated hash
2538  *
2539  * calculate_hash() computes input data hash according to the requested algorithm.
2540  * Resulting hash value is placed in caller provided 'value' buffer, length
2541  * of the calculated hash is returned via value_len pointer argument.
2542  *
2543  * returns:
2544  *     0, on success
2545  *    -1, when algo is unsupported
2546  */
2547 static int calculate_hash(const void *data, int data_len, const char *algo,
2548 			uint8_t *value, int *value_len)
2549 {
2550 	if (strcmp(algo, "crc32") == 0) {
2551 		*((uint32_t *)value) = crc32_wd(0, data, data_len,
2552 							CHUNKSZ_CRC32);
2553 		*((uint32_t *)value) = cpu_to_uimage(*((uint32_t *)value));
2554 		*value_len = 4;
2555 	} else if (strcmp(algo, "sha1") == 0) {
2556 		sha1_csum_wd((unsigned char *) data, data_len,
2557 				(unsigned char *) value, CHUNKSZ_SHA1);
2558 		*value_len = 20;
2559 	} else if (strcmp(algo, "md5") == 0) {
2560 		md5_wd((unsigned char *)data, data_len, value, CHUNKSZ_MD5);
2561 		*value_len = 16;
2562 	} else {
2563 		debug("Unsupported hash alogrithm\n");
2564 		return -1;
2565 	}
2566 	return 0;
2567 }
2568 
2569 #ifdef USE_HOSTCC
2570 /**
2571  * fit_set_hashes - process FIT component image nodes and calculate hashes
2572  * @fit: pointer to the FIT format image header
2573  *
2574  * fit_set_hashes() adds hash values for all component images in the FIT blob.
2575  * Hashes are calculated for all component images which have hash subnodes
2576  * with algorithm property set to one of the supported hash algorithms.
2577  *
2578  * returns
2579  *     0, on success
2580  *     libfdt error code, on failure
2581  */
2582 int fit_set_hashes(void *fit)
2583 {
2584 	int images_noffset;
2585 	int noffset;
2586 	int ndepth;
2587 	int ret;
2588 
2589 	/* Find images parent node offset */
2590 	images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
2591 	if (images_noffset < 0) {
2592 		printf("Can't find images parent node '%s' (%s)\n",
2593 			FIT_IMAGES_PATH, fdt_strerror(images_noffset));
2594 		return images_noffset;
2595 	}
2596 
2597 	/* Process its subnodes, print out component images details */
2598 	for (ndepth = 0, noffset = fdt_next_node(fit, images_noffset, &ndepth);
2599 	     (noffset >= 0) && (ndepth > 0);
2600 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
2601 		if (ndepth == 1) {
2602 			/*
2603 			 * Direct child node of the images parent node,
2604 			 * i.e. component image node.
2605 			 */
2606 			ret = fit_image_set_hashes(fit, noffset);
2607 			if (ret)
2608 				return ret;
2609 		}
2610 	}
2611 
2612 	return 0;
2613 }
2614 
2615 /**
2616  * fit_image_set_hashes - calculate/set hashes for given component image node
2617  * @fit: pointer to the FIT format image header
2618  * @image_noffset: requested component image node
2619  *
2620  * fit_image_set_hashes() adds hash values for an component image node. All
2621  * existing hash subnodes are checked, if algorithm property is set to one of
2622  * the supported hash algorithms, hash value is computed and corresponding
2623  * hash node property is set, for example:
2624  *
2625  * Input component image node structure:
2626  *
2627  * o image@1 (at image_noffset)
2628  *   | - data = [binary data]
2629  *   o hash@1
2630  *     |- algo = "sha1"
2631  *
2632  * Output component image node structure:
2633  *
2634  * o image@1 (at image_noffset)
2635  *   | - data = [binary data]
2636  *   o hash@1
2637  *     |- algo = "sha1"
2638  *     |- value = sha1(data)
2639  *
2640  * returns:
2641  *     0 on sucess
2642  *    <0 on failure
2643  */
2644 int fit_image_set_hashes(void *fit, int image_noffset)
2645 {
2646 	const void *data;
2647 	size_t size;
2648 	char *algo;
2649 	uint8_t value[FIT_MAX_HASH_LEN];
2650 	int value_len;
2651 	int noffset;
2652 	int ndepth;
2653 
2654 	/* Get image data and data length */
2655 	if (fit_image_get_data(fit, image_noffset, &data, &size)) {
2656 		printf("Can't get image data/size\n");
2657 		return -1;
2658 	}
2659 
2660 	/* Process all hash subnodes of the component image node */
2661 	for (ndepth = 0, noffset = fdt_next_node(fit, image_noffset, &ndepth);
2662 	     (noffset >= 0) && (ndepth > 0);
2663 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
2664 		if (ndepth == 1) {
2665 			/* Direct child node of the component image node */
2666 
2667 			/*
2668 			 * Check subnode name, must be equal to "hash".
2669 			 * Multiple hash nodes require unique unit node
2670 			 * names, e.g. hash@1, hash@2, etc.
2671 			 */
2672 			if (strncmp(fit_get_name(fit, noffset, NULL),
2673 						FIT_HASH_NODENAME,
2674 						strlen(FIT_HASH_NODENAME)) != 0) {
2675 				/* Not a hash subnode, skip it */
2676 				continue;
2677 			}
2678 
2679 			if (fit_image_hash_get_algo(fit, noffset, &algo)) {
2680 				printf("Can't get hash algo property for "
2681 					"'%s' hash node in '%s' image node\n",
2682 					fit_get_name(fit, noffset, NULL),
2683 					fit_get_name(fit, image_noffset, NULL));
2684 				return -1;
2685 			}
2686 
2687 			if (calculate_hash(data, size, algo, value,
2688 						&value_len)) {
2689 				printf("Unsupported hash algorithm (%s) for "
2690 					"'%s' hash node in '%s' image node\n",
2691 					algo, fit_get_name(fit, noffset, NULL),
2692 					fit_get_name(fit, image_noffset,
2693 							NULL));
2694 				return -1;
2695 			}
2696 
2697 			if (fit_image_hash_set_value(fit, noffset, value,
2698 							value_len)) {
2699 				printf("Can't set hash value for "
2700 					"'%s' hash node in '%s' image node\n",
2701 					fit_get_name(fit, noffset, NULL),
2702 					fit_get_name(fit, image_noffset, NULL));
2703 				return -1;
2704 			}
2705 		}
2706 	}
2707 
2708 	return 0;
2709 }
2710 
2711 /**
2712  * fit_image_hash_set_value - set hash value in requested has node
2713  * @fit: pointer to the FIT format image header
2714  * @noffset: hash node offset
2715  * @value: hash value to be set
2716  * @value_len: hash value length
2717  *
2718  * fit_image_hash_set_value() attempts to set hash value in a node at offset
2719  * given and returns operation status to the caller.
2720  *
2721  * returns
2722  *     0, on success
2723  *     -1, on failure
2724  */
2725 int fit_image_hash_set_value(void *fit, int noffset, uint8_t *value,
2726 				int value_len)
2727 {
2728 	int ret;
2729 
2730 	ret = fdt_setprop(fit, noffset, FIT_VALUE_PROP, value, value_len);
2731 	if (ret) {
2732 		printf("Can't set hash '%s' property for '%s' node(%s)\n",
2733 			FIT_VALUE_PROP, fit_get_name(fit, noffset, NULL),
2734 			fdt_strerror(ret));
2735 		return -1;
2736 	}
2737 
2738 	return 0;
2739 }
2740 #endif /* USE_HOSTCC */
2741 
2742 /**
2743  * fit_image_check_hashes - verify data intergity
2744  * @fit: pointer to the FIT format image header
2745  * @image_noffset: component image node offset
2746  *
2747  * fit_image_check_hashes() goes over component image hash nodes,
2748  * re-calculates each data hash and compares with the value stored in hash
2749  * node.
2750  *
2751  * returns:
2752  *     1, if all hashes are valid
2753  *     0, otherwise (or on error)
2754  */
2755 int fit_image_check_hashes(const void *fit, int image_noffset)
2756 {
2757 	const void	*data;
2758 	size_t		size;
2759 	char		*algo;
2760 	uint8_t		*fit_value;
2761 	int		fit_value_len;
2762 	uint8_t		value[FIT_MAX_HASH_LEN];
2763 	int		value_len;
2764 	int		noffset;
2765 	int		ndepth;
2766 	char		*err_msg = "";
2767 
2768 	/* Get image data and data length */
2769 	if (fit_image_get_data(fit, image_noffset, &data, &size)) {
2770 		printf("Can't get image data/size\n");
2771 		return 0;
2772 	}
2773 
2774 	/* Process all hash subnodes of the component image node */
2775 	for (ndepth = 0, noffset = fdt_next_node(fit, image_noffset, &ndepth);
2776 	     (noffset >= 0) && (ndepth > 0);
2777 	     noffset = fdt_next_node(fit, noffset, &ndepth)) {
2778 		if (ndepth == 1) {
2779 			/* Direct child node of the component image node */
2780 
2781 			/*
2782 			 * Check subnode name, must be equal to "hash".
2783 			 * Multiple hash nodes require unique unit node
2784 			 * names, e.g. hash@1, hash@2, etc.
2785 			 */
2786 			if (strncmp(fit_get_name(fit, noffset, NULL),
2787 					FIT_HASH_NODENAME,
2788 					strlen(FIT_HASH_NODENAME)) != 0)
2789 				continue;
2790 
2791 			if (fit_image_hash_get_algo(fit, noffset, &algo)) {
2792 				err_msg = " error!\nCan't get hash algo "
2793 						"property";
2794 				goto error;
2795 			}
2796 			printf("%s", algo);
2797 
2798 			if (fit_image_hash_get_value(fit, noffset, &fit_value,
2799 							&fit_value_len)) {
2800 				err_msg = " error!\nCan't get hash value "
2801 						"property";
2802 				goto error;
2803 			}
2804 
2805 			if (calculate_hash(data, size, algo, value,
2806 						&value_len)) {
2807 				err_msg = " error!\n"
2808 						"Unsupported hash algorithm";
2809 				goto error;
2810 			}
2811 
2812 			if (value_len != fit_value_len) {
2813 				err_msg = " error !\nBad hash value len";
2814 				goto error;
2815 			} else if (memcmp(value, fit_value, value_len) != 0) {
2816 				err_msg = " error!\nBad hash value";
2817 				goto error;
2818 			}
2819 			printf("+ ");
2820 		}
2821 	}
2822 
2823 	return 1;
2824 
2825 error:
2826 	printf("%s for '%s' hash node in '%s' image node\n",
2827 			err_msg, fit_get_name(fit, noffset, NULL),
2828 			fit_get_name(fit, image_noffset, NULL));
2829 	return 0;
2830 }
2831 
2832 /**
2833  * fit_all_image_check_hashes - verify data intergity for all images
2834  * @fit: pointer to the FIT format image header
2835  *
2836  * fit_all_image_check_hashes() goes over all images in the FIT and
2837  * for every images checks if all it's hashes are valid.
2838  *
2839  * returns:
2840  *     1, if all hashes of all images are valid
2841  *     0, otherwise (or on error)
2842  */
2843 int fit_all_image_check_hashes(const void *fit)
2844 {
2845 	int images_noffset;
2846 	int noffset;
2847 	int ndepth;
2848 	int count;
2849 
2850 	/* Find images parent node offset */
2851 	images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
2852 	if (images_noffset < 0) {
2853 		printf("Can't find images parent node '%s' (%s)\n",
2854 			FIT_IMAGES_PATH, fdt_strerror(images_noffset));
2855 		return 0;
2856 	}
2857 
2858 	/* Process all image subnodes, check hashes for each */
2859 	printf("## Checking hash(es) for FIT Image at %08lx ...\n",
2860 		(ulong)fit);
2861 	for (ndepth = 0, count = 0,
2862 		noffset = fdt_next_node(fit, images_noffset, &ndepth);
2863 		(noffset >= 0) && (ndepth > 0);
2864 		noffset = fdt_next_node(fit, noffset, &ndepth)) {
2865 		if (ndepth == 1) {
2866 			/*
2867 			 * Direct child node of the images parent node,
2868 			 * i.e. component image node.
2869 			 */
2870 			printf("   Hash(es) for Image %u (%s): ", count++,
2871 					fit_get_name(fit, noffset, NULL));
2872 
2873 			if (!fit_image_check_hashes(fit, noffset))
2874 				return 0;
2875 			printf("\n");
2876 		}
2877 	}
2878 	return 1;
2879 }
2880 
2881 /**
2882  * fit_image_check_os - check whether image node is of a given os type
2883  * @fit: pointer to the FIT format image header
2884  * @noffset: component image node offset
2885  * @os: requested image os
2886  *
2887  * fit_image_check_os() reads image os property and compares its numeric
2888  * id with the requested os. Comparison result is returned to the caller.
2889  *
2890  * returns:
2891  *     1 if image is of given os type
2892  *     0 otherwise (or on error)
2893  */
2894 int fit_image_check_os(const void *fit, int noffset, uint8_t os)
2895 {
2896 	uint8_t image_os;
2897 
2898 	if (fit_image_get_os(fit, noffset, &image_os))
2899 		return 0;
2900 	return (os == image_os);
2901 }
2902 
2903 /**
2904  * fit_image_check_arch - check whether image node is of a given arch
2905  * @fit: pointer to the FIT format image header
2906  * @noffset: component image node offset
2907  * @arch: requested imagearch
2908  *
2909  * fit_image_check_arch() reads image arch property and compares its numeric
2910  * id with the requested arch. Comparison result is returned to the caller.
2911  *
2912  * returns:
2913  *     1 if image is of given arch
2914  *     0 otherwise (or on error)
2915  */
2916 int fit_image_check_arch(const void *fit, int noffset, uint8_t arch)
2917 {
2918 	uint8_t image_arch;
2919 
2920 	if (fit_image_get_arch(fit, noffset, &image_arch))
2921 		return 0;
2922 	return (arch == image_arch);
2923 }
2924 
2925 /**
2926  * fit_image_check_type - check whether image node is of a given type
2927  * @fit: pointer to the FIT format image header
2928  * @noffset: component image node offset
2929  * @type: requested image type
2930  *
2931  * fit_image_check_type() reads image type property and compares its numeric
2932  * id with the requested type. Comparison result is returned to the caller.
2933  *
2934  * returns:
2935  *     1 if image is of given type
2936  *     0 otherwise (or on error)
2937  */
2938 int fit_image_check_type(const void *fit, int noffset, uint8_t type)
2939 {
2940 	uint8_t image_type;
2941 
2942 	if (fit_image_get_type(fit, noffset, &image_type))
2943 		return 0;
2944 	return (type == image_type);
2945 }
2946 
2947 /**
2948  * fit_image_check_comp - check whether image node uses given compression
2949  * @fit: pointer to the FIT format image header
2950  * @noffset: component image node offset
2951  * @comp: requested image compression type
2952  *
2953  * fit_image_check_comp() reads image compression property and compares its
2954  * numeric id with the requested compression type. Comparison result is
2955  * returned to the caller.
2956  *
2957  * returns:
2958  *     1 if image uses requested compression
2959  *     0 otherwise (or on error)
2960  */
2961 int fit_image_check_comp(const void *fit, int noffset, uint8_t comp)
2962 {
2963 	uint8_t image_comp;
2964 
2965 	if (fit_image_get_comp(fit, noffset, &image_comp))
2966 		return 0;
2967 	return (comp == image_comp);
2968 }
2969 
2970 /**
2971  * fit_check_format - sanity check FIT image format
2972  * @fit: pointer to the FIT format image header
2973  *
2974  * fit_check_format() runs a basic sanity FIT image verification.
2975  * Routine checks for mandatory properties, nodes, etc.
2976  *
2977  * returns:
2978  *     1, on success
2979  *     0, on failure
2980  */
2981 int fit_check_format(const void *fit)
2982 {
2983 	/* mandatory / node 'description' property */
2984 	if (fdt_getprop(fit, 0, FIT_DESC_PROP, NULL) == NULL) {
2985 		debug("Wrong FIT format: no description\n");
2986 		return 0;
2987 	}
2988 
2989 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
2990 	/* mandatory / node 'timestamp' property */
2991 	if (fdt_getprop(fit, 0, FIT_TIMESTAMP_PROP, NULL) == NULL) {
2992 		debug("Wrong FIT format: no timestamp\n");
2993 		return 0;
2994 	}
2995 #endif
2996 
2997 	/* mandatory subimages parent '/images' node */
2998 	if (fdt_path_offset(fit, FIT_IMAGES_PATH) < 0) {
2999 		debug("Wrong FIT format: no images parent node\n");
3000 		return 0;
3001 	}
3002 
3003 	return 1;
3004 }
3005 
3006 /**
3007  * fit_conf_get_node - get node offset for configuration of a given unit name
3008  * @fit: pointer to the FIT format image header
3009  * @conf_uname: configuration node unit name
3010  *
3011  * fit_conf_get_node() finds a configuration (withing the '/configurations'
3012  * parant node) of a provided unit name. If configuration is found its node offset
3013  * is returned to the caller.
3014  *
3015  * When NULL is provided in second argument fit_conf_get_node() will search
3016  * for a default configuration node instead. Default configuration node unit name
3017  * is retrived from FIT_DEFAULT_PROP property of the '/configurations' node.
3018  *
3019  * returns:
3020  *     configuration node offset when found (>=0)
3021  *     negative number on failure (FDT_ERR_* code)
3022  */
3023 int fit_conf_get_node(const void *fit, const char *conf_uname)
3024 {
3025 	int noffset, confs_noffset;
3026 	int len;
3027 
3028 	confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH);
3029 	if (confs_noffset < 0) {
3030 		debug("Can't find configurations parent node '%s' (%s)\n",
3031 			FIT_CONFS_PATH, fdt_strerror(confs_noffset));
3032 		return confs_noffset;
3033 	}
3034 
3035 	if (conf_uname == NULL) {
3036 		/* get configuration unit name from the default property */
3037 		debug("No configuration specified, trying default...\n");
3038 		conf_uname = (char *)fdt_getprop(fit, confs_noffset,
3039 						 FIT_DEFAULT_PROP, &len);
3040 		if (conf_uname == NULL) {
3041 			fit_get_debug(fit, confs_noffset, FIT_DEFAULT_PROP,
3042 					len);
3043 			return len;
3044 		}
3045 		debug("Found default configuration: '%s'\n", conf_uname);
3046 	}
3047 
3048 	noffset = fdt_subnode_offset(fit, confs_noffset, conf_uname);
3049 	if (noffset < 0) {
3050 		debug("Can't get node offset for configuration unit name: "
3051 			"'%s' (%s)\n",
3052 			conf_uname, fdt_strerror(noffset));
3053 	}
3054 
3055 	return noffset;
3056 }
3057 
3058 static int __fit_conf_get_prop_node(const void *fit, int noffset,
3059 		const char *prop_name)
3060 {
3061 	char *uname;
3062 	int len;
3063 
3064 	/* get kernel image unit name from configuration kernel property */
3065 	uname = (char *)fdt_getprop(fit, noffset, prop_name, &len);
3066 	if (uname == NULL)
3067 		return len;
3068 
3069 	return fit_image_get_node(fit, uname);
3070 }
3071 
3072 /**
3073  * fit_conf_get_kernel_node - get kernel image node offset that corresponds to
3074  * a given configuration
3075  * @fit: pointer to the FIT format image header
3076  * @noffset: configuration node offset
3077  *
3078  * fit_conf_get_kernel_node() retrives kernel image node unit name from
3079  * configuration FIT_KERNEL_PROP property and translates it to the node
3080  * offset.
3081  *
3082  * returns:
3083  *     image node offset when found (>=0)
3084  *     negative number on failure (FDT_ERR_* code)
3085  */
3086 int fit_conf_get_kernel_node(const void *fit, int noffset)
3087 {
3088 	return __fit_conf_get_prop_node(fit, noffset, FIT_KERNEL_PROP);
3089 }
3090 
3091 /**
3092  * fit_conf_get_ramdisk_node - get ramdisk image node offset that corresponds to
3093  * a given configuration
3094  * @fit: pointer to the FIT format image header
3095  * @noffset: configuration node offset
3096  *
3097  * fit_conf_get_ramdisk_node() retrives ramdisk image node unit name from
3098  * configuration FIT_KERNEL_PROP property and translates it to the node
3099  * offset.
3100  *
3101  * returns:
3102  *     image node offset when found (>=0)
3103  *     negative number on failure (FDT_ERR_* code)
3104  */
3105 int fit_conf_get_ramdisk_node(const void *fit, int noffset)
3106 {
3107 	return __fit_conf_get_prop_node(fit, noffset, FIT_RAMDISK_PROP);
3108 }
3109 
3110 /**
3111  * fit_conf_get_fdt_node - get fdt image node offset that corresponds to
3112  * a given configuration
3113  * @fit: pointer to the FIT format image header
3114  * @noffset: configuration node offset
3115  *
3116  * fit_conf_get_fdt_node() retrives fdt image node unit name from
3117  * configuration FIT_KERNEL_PROP property and translates it to the node
3118  * offset.
3119  *
3120  * returns:
3121  *     image node offset when found (>=0)
3122  *     negative number on failure (FDT_ERR_* code)
3123  */
3124 int fit_conf_get_fdt_node(const void *fit, int noffset)
3125 {
3126 	return __fit_conf_get_prop_node(fit, noffset, FIT_FDT_PROP);
3127 }
3128 
3129 /**
3130  * fit_conf_print - prints out the FIT configuration details
3131  * @fit: pointer to the FIT format image header
3132  * @noffset: offset of the configuration node
3133  * @p: pointer to prefix string
3134  *
3135  * fit_conf_print() lists all mandatory properies for the processed
3136  * configuration node.
3137  *
3138  * returns:
3139  *     no returned results
3140  */
3141 void fit_conf_print(const void *fit, int noffset, const char *p)
3142 {
3143 	char *desc;
3144 	char *uname;
3145 	int ret;
3146 
3147 	/* Mandatory properties */
3148 	ret = fit_get_desc(fit, noffset, &desc);
3149 	printf("%s  Description:  ", p);
3150 	if (ret)
3151 		printf("unavailable\n");
3152 	else
3153 		printf("%s\n", desc);
3154 
3155 	uname = (char *)fdt_getprop(fit, noffset, FIT_KERNEL_PROP, NULL);
3156 	printf("%s  Kernel:       ", p);
3157 	if (uname == NULL)
3158 		printf("unavailable\n");
3159 	else
3160 		printf("%s\n", uname);
3161 
3162 	/* Optional properties */
3163 	uname = (char *)fdt_getprop(fit, noffset, FIT_RAMDISK_PROP, NULL);
3164 	if (uname)
3165 		printf("%s  Init Ramdisk: %s\n", p, uname);
3166 
3167 	uname = (char *)fdt_getprop(fit, noffset, FIT_FDT_PROP, NULL);
3168 	if (uname)
3169 		printf("%s  FDT:          %s\n", p, uname);
3170 }
3171 
3172 /**
3173  * fit_check_ramdisk - verify FIT format ramdisk subimage
3174  * @fit_hdr: pointer to the FIT ramdisk header
3175  * @rd_noffset: ramdisk subimage node offset within FIT image
3176  * @arch: requested ramdisk image architecture type
3177  * @verify: data CRC verification flag
3178  *
3179  * fit_check_ramdisk() verifies integrity of the ramdisk subimage and from
3180  * specified FIT image.
3181  *
3182  * returns:
3183  *     1, on success
3184  *     0, on failure
3185  */
3186 #ifndef USE_HOSTCC
3187 static int fit_check_ramdisk(const void *fit, int rd_noffset, uint8_t arch,
3188 				int verify)
3189 {
3190 	fit_image_print(fit, rd_noffset, "   ");
3191 
3192 	if (verify) {
3193 		puts("   Verifying Hash Integrity ... ");
3194 		if (!fit_image_check_hashes(fit, rd_noffset)) {
3195 			puts("Bad Data Hash\n");
3196 			bootstage_error(BOOTSTAGE_ID_FIT_RD_HASH);
3197 			return 0;
3198 		}
3199 		puts("OK\n");
3200 	}
3201 
3202 	bootstage_mark(BOOTSTAGE_ID_FIT_RD_CHECK_ALL);
3203 	if (!fit_image_check_os(fit, rd_noffset, IH_OS_LINUX) ||
3204 	    !fit_image_check_arch(fit, rd_noffset, arch) ||
3205 	    !fit_image_check_type(fit, rd_noffset, IH_TYPE_RAMDISK)) {
3206 		printf("No Linux %s Ramdisk Image\n",
3207 				genimg_get_arch_name(arch));
3208 		bootstage_error(BOOTSTAGE_ID_FIT_RD_CHECK_ALL);
3209 		return 0;
3210 	}
3211 
3212 	bootstage_mark(BOOTSTAGE_ID_FIT_RD_CHECK_ALL_OK);
3213 	return 1;
3214 }
3215 #endif /* USE_HOSTCC */
3216 #endif /* CONFIG_FIT */
3217