]> git.ipfire.org Git - people/ms/u-boot.git/blame - common/bootm.c
projects / people / ms / u-boot.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Allow compiling common/bootm.c on with HOSTCC
[people/ms/u-boot.git] / common / bootm.c
CommitLineData
b6396403
SG		 1/*
2 * (C) Copyright 2000-2009
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
ea51a628 8#ifndef USE_HOSTCC
b6396403 9#include <common.h>
ea51a628 10#include <bootstage.h>
b6396403 11#include <bzlib.h>
b6396403
SG		 12#include <fdt_support.h>
13#include <lmb.h>
14#include <malloc.h>
15#include <asm/io.h>
16#include <linux/lzo.h>
17#include <lzma/LzmaTypes.h>
18#include <lzma/LzmaDec.h>
19#include <lzma/LzmaTools.h>
b6396403
SG		 20#if defined(CONFIG_CMD_USB)
21#include <usb.h>
22#endif
ea51a628
SG		 23#else
24#include "mkimage.h"
25#endif
b6396403 26
ea51a628
SG		 27#include <command.h>
28#include <bootm.h>
29#include <image.h>
b6396403
SG		 30
31#ifndef CONFIG_SYS_BOOTM_LEN
32/* use 8MByte as default max gunzip size */
33#define CONFIG_SYS_BOOTM_LEN 0x800000
34#endif
35
36#define IH_INITRD_ARCH IH_ARCH_DEFAULT
37
ea51a628
SG		 38#ifndef USE_HOSTCC
39
40DECLARE_GLOBAL_DATA_PTR;
41
b6396403
SG		 42static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
43 char * const argv[], bootm_headers_t *images,
44 ulong *os_data, ulong *os_len);
45
46#ifdef CONFIG_LMB
47static void boot_start_lmb(bootm_headers_t *images)
48{
49 ulong mem_start;
50 phys_size_t mem_size;
51
52 lmb_init(&images->lmb);
53
54 mem_start = getenv_bootm_low();
55 mem_size = getenv_bootm_size();
56
57 lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
58
59 arch_lmb_reserve(&images->lmb);
60 board_lmb_reserve(&images->lmb);
61}
62#else
63#define lmb_reserve(lmb, base, size)
64static inline void boot_start_lmb(bootm_headers_t *images) { }
65#endif
66
67static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc,
68 char * const argv[])
69{
70 memset((void *)&images, 0, sizeof(images));
71 images.verify = getenv_yesno("verify");
72
73 boot_start_lmb(&images);
74
75 bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
76 images.state = BOOTM_STATE_START;
77
78 return 0;
79}
80
81static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc,
82 char * const argv[])
83{
84 const void *os_hdr;
85 bool ep_found = false;
86
87 /* get kernel image header, start address and length */
88 os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
89 &images, &images.os.image_start, &images.os.image_len);
90 if (images.os.image_len == 0) {
91 puts("ERROR: can't get kernel image!\n");
92 return 1;
93 }
94
95 /* get image parameters */
96 switch (genimg_get_format(os_hdr)) {
97#if defined(CONFIG_IMAGE_FORMAT_LEGACY)
98 case IMAGE_FORMAT_LEGACY:
99 images.os.type = image_get_type(os_hdr);
100 images.os.comp = image_get_comp(os_hdr);
101 images.os.os = image_get_os(os_hdr);
102
103 images.os.end = image_get_image_end(os_hdr);
104 images.os.load = image_get_load(os_hdr);
105 break;
106#endif
107#if defined(CONFIG_FIT)
108 case IMAGE_FORMAT_FIT:
109 if (fit_image_get_type(images.fit_hdr_os,
110 images.fit_noffset_os,
111 &images.os.type)) {
112 puts("Can't get image type!\n");
113 bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
114 return 1;
115 }
116
117 if (fit_image_get_comp(images.fit_hdr_os,
118 images.fit_noffset_os,
119 &images.os.comp)) {
120 puts("Can't get image compression!\n");
121 bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
122 return 1;
123 }
124
125 if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os,
126 &images.os.os)) {
127 puts("Can't get image OS!\n");
128 bootstage_error(BOOTSTAGE_ID_FIT_OS);
129 return 1;
130 }
131
132 images.os.end = fit_get_end(images.fit_hdr_os);
133
134 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
135 &images.os.load)) {
136 puts("Can't get image load address!\n");
137 bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
138 return 1;
139 }
140 break;
141#endif
142#ifdef CONFIG_ANDROID_BOOT_IMAGE
143 case IMAGE_FORMAT_ANDROID:
144 images.os.type = IH_TYPE_KERNEL;
145 images.os.comp = IH_COMP_NONE;
146 images.os.os = IH_OS_LINUX;
147 images.ep = images.os.load;
148 ep_found = true;
149
150 images.os.end = android_image_get_end(os_hdr);
151 images.os.load = android_image_get_kload(os_hdr);
152 break;
153#endif
154 default:
155 puts("ERROR: unknown image format type!\n");
156 return 1;
157 }
158
159 /* find kernel entry point */
160 if (images.legacy_hdr_valid) {
161 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
162#if defined(CONFIG_FIT)
163 } else if (images.fit_uname_os) {
164 int ret;
165
166 ret = fit_image_get_entry(images.fit_hdr_os,
167 images.fit_noffset_os, &images.ep);
168 if (ret) {
169 puts("Can't get entry point property!\n");
170 return 1;
171 }
172#endif
173 } else if (!ep_found) {
174 puts("Could not find kernel entry point!\n");
175 return 1;
176 }
177
178 if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
179 images.os.load = images.os.image_start;
180 images.ep += images.os.load;
181 }
182
183 images.os.start = (ulong)os_hdr;
184
185 return 0;
186}
187
188static int bootm_find_ramdisk(int flag, int argc, char * const argv[])
189{
190 int ret;
191
192 /* find ramdisk */
193 ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
194 &images.rd_start, &images.rd_end);
195 if (ret) {
196 puts("Ramdisk image is corrupt or invalid\n");
197 return 1;
198 }
199
200 return 0;
201}
202
203#if defined(CONFIG_OF_LIBFDT)
204static int bootm_find_fdt(int flag, int argc, char * const argv[])
205{
206 int ret;
207
208 /* find flattened device tree */
209 ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
210 &images.ft_addr, &images.ft_len);
211 if (ret) {
212 puts("Could not find a valid device tree\n");
213 return 1;
214 }
215
216 set_working_fdt_addr(images.ft_addr);
217
218 return 0;
219}
220#endif
221
222int bootm_find_ramdisk_fdt(int flag, int argc, char * const argv[])
223{
224 if (bootm_find_ramdisk(flag, argc, argv))
225 return 1;
226
227#if defined(CONFIG_OF_LIBFDT)
228 if (bootm_find_fdt(flag, argc, argv))
229 return 1;
230#endif
231
232 return 0;
233}
234
235static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
236 char * const argv[])
237{
238 if (((images.os.type == IH_TYPE_KERNEL) ||
239 (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
240 (images.os.type == IH_TYPE_MULTI)) &&
241 (images.os.os == IH_OS_LINUX ||
242 images.os.os == IH_OS_VXWORKS))
243 return bootm_find_ramdisk_fdt(flag, argc, argv);
244
245 return 0;
246}
247
248static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end,
249 int boot_progress)
250{
251 image_info_t os = images->os;
252 uint8_t comp = os.comp;
253 ulong load = os.load;
254 ulong blob_start = os.start;
255 ulong blob_end = os.end;
256 ulong image_start = os.image_start;
257 ulong image_len = os.image_len;
258 __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
259 int no_overlap = 0;
260 void *load_buf, *image_buf;
261#if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
262 int ret;
263#endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
264
265 const char *type_name = genimg_get_type_name(os.type);
266
267 load_buf = map_sysmem(load, unc_len);
268 image_buf = map_sysmem(image_start, image_len);
269 switch (comp) {
270 case IH_COMP_NONE:
271 if (load == image_start) {
272 printf(" XIP %s ... ", type_name);
273 no_overlap = 1;
274 } else {
275 printf(" Loading %s ... ", type_name);
276 memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
277 }
278 *load_end = load + image_len;
279 break;
280#ifdef CONFIG_GZIP
281 case IH_COMP_GZIP:
282 printf(" Uncompressing %s ... ", type_name);
283 if (gunzip(load_buf, unc_len, image_buf, &image_len) != 0) {
284 puts("GUNZIP: uncompress, out-of-mem or overwrite error - must RESET board to recover\n");
285 if (boot_progress)
286 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
287 return BOOTM_ERR_RESET;
288 }
289
290 *load_end = load + image_len;
291 break;
292#endif /* CONFIG_GZIP */
293#ifdef CONFIG_BZIP2
294 case IH_COMP_BZIP2:
295 printf(" Uncompressing %s ... ", type_name);
296 /*
297 * If we've got less than 4 MB of malloc() space,
298 * use slower decompression algorithm which requires
299 * at most 2300 KB of memory.
300 */
301 int i = BZ2_bzBuffToBuffDecompress(load_buf, &unc_len,
302 image_buf, image_len,
303 CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
304 if (i != BZ_OK) {
305 printf("BUNZIP2: uncompress or overwrite error %d - must RESET board to recover\n",
306 i);
307 if (boot_progress)
308 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
309 return BOOTM_ERR_RESET;
310 }
311
312 *load_end = load + unc_len;
313 break;
314#endif /* CONFIG_BZIP2 */
315#ifdef CONFIG_LZMA
316 case IH_COMP_LZMA: {
317 SizeT lzma_len = unc_len;
318 printf(" Uncompressing %s ... ", type_name);
319
320 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
321 image_buf, image_len);
322 unc_len = lzma_len;
323 if (ret != SZ_OK) {
324 printf("LZMA: uncompress or overwrite error %d - must RESET board to recover\n",
325 ret);
326 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
327 return BOOTM_ERR_RESET;
328 }
329 *load_end = load + unc_len;
330 break;
331 }
332#endif /* CONFIG_LZMA */
333#ifdef CONFIG_LZO
334 case IH_COMP_LZO: {
335 size_t size = unc_len;
336
337 printf(" Uncompressing %s ... ", type_name);
338
339 ret = lzop_decompress(image_buf, image_len, load_buf, &size);
340 if (ret != LZO_E_OK) {
341 printf("LZO: uncompress or overwrite error %d - must RESET board to recover\n",
342 ret);
343 if (boot_progress)
344 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
345 return BOOTM_ERR_RESET;
346 }
347
348 *load_end = load + size;
349 break;
350 }
351#endif /* CONFIG_LZO */
352 default:
353 printf("Unimplemented compression type %d\n", comp);
354 return BOOTM_ERR_UNIMPLEMENTED;
355 }
356
357 flush_cache(load, (*load_end - load) * sizeof(ulong));
358
359 puts("OK\n");
360 debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
361 bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
362
363 if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
364 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
365 blob_start, blob_end);
366 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
367 *load_end);
368
369 /* Check what type of image this is. */
370 if (images->legacy_hdr_valid) {
371 if (image_get_type(&images->legacy_hdr_os_copy)
372 == IH_TYPE_MULTI)
373 puts("WARNING: legacy format multi component image overwritten\n");
374 return BOOTM_ERR_OVERLAP;
375 } else {
376 puts("ERROR: new format image overwritten - must RESET the board to recover\n");
377 bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
378 return BOOTM_ERR_RESET;
379 }
380 }
381
382 return 0;
383}
384
385/**
386 * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
387 *
388 * @return interrupt flag (0 if interrupts were disabled, non-zero if they were
389 * enabled)
390 */
391ulong bootm_disable_interrupts(void)
392{
393 ulong iflag;
394
395 /*
396 * We have reached the point of no return: we are going to
397 * overwrite all exception vector code, so we cannot easily
398 * recover from any failures any more...
399 */
400 iflag = disable_interrupts();
401#ifdef CONFIG_NETCONSOLE
402 /* Stop the ethernet stack if NetConsole could have left it up */
403 eth_halt();
404 eth_unregister(eth_get_dev());
405#endif
406
407#if defined(CONFIG_CMD_USB)
408 /*
409 * turn off USB to prevent the host controller from writing to the
410 * SDRAM while Linux is booting. This could happen (at least for OHCI
411 * controller), because the HCCA (Host Controller Communication Area)
412 * lies within the SDRAM and the host controller writes continously to
413 * this area (as busmaster!). The HccaFrameNumber is for example
414 * updated every 1 ms within the HCCA structure in SDRAM! For more
415 * details see the OpenHCI specification.
416 */
417 usb_stop();
418#endif
419 return iflag;
420}
421
422#if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
423
424#define CONSOLE_ARG "console="
425#define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
426
427static void fixup_silent_linux(void)
428{
429 char *buf;
430 const char *env_val;
431 char *cmdline = getenv("bootargs");
432 int want_silent;
433
434 /*
435 * Only fix cmdline when requested. The environment variable can be:
436 *
437 * no - we never fixup
438 * yes - we always fixup
439 * unset - we rely on the console silent flag
440 */
441 want_silent = getenv_yesno("silent_linux");
442 if (want_silent == 0)
443 return;
444 else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
445 return;
446
447 debug("before silent fix-up: %s\n", cmdline);
448 if (cmdline && (cmdline[0] != '\0')) {
449 char *start = strstr(cmdline, CONSOLE_ARG);
450
451 /* Allocate space for maximum possible new command line */
452 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
453 if (!buf) {
454 debug("%s: out of memory\n", __func__);
455 return;
456 }
457
458 if (start) {
459 char *end = strchr(start, ' ');
460 int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
461
462 strncpy(buf, cmdline, num_start_bytes);
463 if (end)
464 strcpy(buf + num_start_bytes, end);
465 else
466 buf[num_start_bytes] = '\0';
467 } else {
468 sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
469 }
470 env_val = buf;
471 } else {
472 buf = NULL;
473 env_val = CONSOLE_ARG;
474 }
475
476 setenv("bootargs", env_val);
477 debug("after silent fix-up: %s\n", env_val);
478 free(buf);
479}
480#endif /* CONFIG_SILENT_CONSOLE */
481
482/**
483 * Execute selected states of the bootm command.
484 *
485 * Note the arguments to this state must be the first argument, Any 'bootm'
486 * or sub-command arguments must have already been taken.
487 *
488 * Note that if states contains more than one flag it MUST contain
489 * BOOTM_STATE_START, since this handles and consumes the command line args.
490 *
491 * Also note that aside from boot_os_fn functions and bootm_load_os no other
492 * functions we store the return value of in 'ret' may use a negative return
493 * value, without special handling.
494 *
495 * @param cmdtp Pointer to bootm command table entry
496 * @param flag Command flags (CMD_FLAG_...)
497 * @param argc Number of subcommand arguments (0 = no arguments)
498 * @param argv Arguments
499 * @param states Mask containing states to run (BOOTM_STATE_...)
500 * @param images Image header information
501 * @param boot_progress 1 to show boot progress, 0 to not do this
502 * @return 0 if ok, something else on error. Some errors will cause this
503 * function to perform a reboot! If states contains BOOTM_STATE_OS_GO
504 * then the intent is to boot an OS, so this function will not return
505 * unless the image type is standalone.
506 */
507int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
508 int states, bootm_headers_t *images, int boot_progress)
509{
510 boot_os_fn *boot_fn;
511 ulong iflag = 0;
512 int ret = 0, need_boot_fn;
513
514 images->state |= states;
515
516 /*
517 * Work through the states and see how far we get. We stop on
518 * any error.
519 */
520 if (states & BOOTM_STATE_START)
521 ret = bootm_start(cmdtp, flag, argc, argv);
522
523 if (!ret && (states & BOOTM_STATE_FINDOS))
524 ret = bootm_find_os(cmdtp, flag, argc, argv);
525
526 if (!ret && (states & BOOTM_STATE_FINDOTHER)) {
527 ret = bootm_find_other(cmdtp, flag, argc, argv);
528 argc = 0; /* consume the args */
529 }
530
531 /* Load the OS */
532 if (!ret && (states & BOOTM_STATE_LOADOS)) {
533 ulong load_end;
534
535 iflag = bootm_disable_interrupts();
536 ret = bootm_load_os(images, &load_end, 0);
537 if (ret == 0)
538 lmb_reserve(&images->lmb, images->os.load,
539 (load_end - images->os.load));
540 else if (ret && ret != BOOTM_ERR_OVERLAP)
541 goto err;
542 else if (ret == BOOTM_ERR_OVERLAP)
543 ret = 0;
544#if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
545 if (images->os.os == IH_OS_LINUX)
546 fixup_silent_linux();
547#endif
548 }
549
550 /* Relocate the ramdisk */
551#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
552 if (!ret && (states & BOOTM_STATE_RAMDISK)) {
553 ulong rd_len = images->rd_end - images->rd_start;
554
555 ret = boot_ramdisk_high(&images->lmb, images->rd_start,
556 rd_len, &images->initrd_start, &images->initrd_end);
557 if (!ret) {
558 setenv_hex("initrd_start", images->initrd_start);
559 setenv_hex("initrd_end", images->initrd_end);
560 }
561 }
562#endif
563#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
564 if (!ret && (states & BOOTM_STATE_FDT)) {
565 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
566 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
567 &images->ft_len);
568 }
569#endif
570
571 /* From now on, we need the OS boot function */
572 if (ret)
573 return ret;
574 boot_fn = bootm_os_get_boot_func(images->os.os);
575 need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
576 BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
577 BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
578 if (boot_fn == NULL && need_boot_fn) {
579 if (iflag)
580 enable_interrupts();
581 printf("ERROR: booting os '%s' (%d) is not supported\n",
582 genimg_get_os_name(images->os.os), images->os.os);
583 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
584 return 1;
585 }
586
587 /* Call various other states that are not generally used */
588 if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
589 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images);
590 if (!ret && (states & BOOTM_STATE_OS_BD_T))
591 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images);
592 if (!ret && (states & BOOTM_STATE_OS_PREP))
593 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images);
594
595#ifdef CONFIG_TRACE
596 /* Pretend to run the OS, then run a user command */
597 if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
598 char *cmd_list = getenv("fakegocmd");
599
600 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO,
601 images, boot_fn);
602 if (!ret && cmd_list)
603 ret = run_command_list(cmd_list, -1, flag);
604 }
605#endif
606
607 /* Check for unsupported subcommand. */
608 if (ret) {
609 puts("subcommand not supported\n");
610 return ret;
611 }
612
613 /* Now run the OS! We hope this doesn't return */
614 if (!ret && (states & BOOTM_STATE_OS_GO))
615 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO,
616 images, boot_fn);
617
618 /* Deal with any fallout */
619err:
620 if (iflag)
621 enable_interrupts();
622
623 if (ret == BOOTM_ERR_UNIMPLEMENTED)
624 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
625 else if (ret == BOOTM_ERR_RESET)
626 do_reset(cmdtp, flag, argc, argv);
627
628 return ret;
629}
630
631#if defined(CONFIG_IMAGE_FORMAT_LEGACY)
632/**
633 * image_get_kernel - verify legacy format kernel image
634 * @img_addr: in RAM address of the legacy format image to be verified
635 * @verify: data CRC verification flag
636 *
637 * image_get_kernel() verifies legacy image integrity and returns pointer to
638 * legacy image header if image verification was completed successfully.
639 *
640 * returns:
641 * pointer to a legacy image header if valid image was found
642 * otherwise return NULL
643 */
644static image_header_t *image_get_kernel(ulong img_addr, int verify)
645{
646 image_header_t *hdr = (image_header_t *)img_addr;
647
648 if (!image_check_magic(hdr)) {
649 puts("Bad Magic Number\n");
650 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
651 return NULL;
652 }
653 bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
654
655 if (!image_check_hcrc(hdr)) {
656 puts("Bad Header Checksum\n");
657 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
658 return NULL;
659 }
660
661 bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
662 image_print_contents(hdr);
663
664 if (verify) {
665 puts(" Verifying Checksum ... ");
666 if (!image_check_dcrc(hdr)) {
667 printf("Bad Data CRC\n");
668 bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
669 return NULL;
670 }
671 puts("OK\n");
672 }
673 bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
674
675 if (!image_check_target_arch(hdr)) {
676 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
677 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
678 return NULL;
679 }
680 return hdr;
681}
682#endif
683
684/**
685 * boot_get_kernel - find kernel image
686 * @os_data: pointer to a ulong variable, will hold os data start address
687 * @os_len: pointer to a ulong variable, will hold os data length
688 *
689 * boot_get_kernel() tries to find a kernel image, verifies its integrity
690 * and locates kernel data.
691 *
692 * returns:
693 * pointer to image header if valid image was found, plus kernel start
694 * address and length, otherwise NULL
695 */
696static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
697 char * const argv[], bootm_headers_t *images,
698 ulong *os_data, ulong *os_len)
699{
700#if defined(CONFIG_IMAGE_FORMAT_LEGACY)
701 image_header_t *hdr;
702#endif
703 ulong img_addr;
704 const void *buf;
705#if defined(CONFIG_FIT)
706 const char *fit_uname_config = NULL;
707 const char *fit_uname_kernel = NULL;
708 int os_noffset;
709#endif
710
711 /* find out kernel image address */
712 if (argc < 1) {
713 img_addr = load_addr;
714 debug("* kernel: default image load address = 0x%08lx\n",
715 load_addr);
716#if defined(CONFIG_FIT)
717 } else if (fit_parse_conf(argv[0], load_addr, &img_addr,
718 &fit_uname_config)) {
719 debug("* kernel: config '%s' from image at 0x%08lx\n",
720 fit_uname_config, img_addr);
721 } else if (fit_parse_subimage(argv[0], load_addr, &img_addr,
722 &fit_uname_kernel)) {
723 debug("* kernel: subimage '%s' from image at 0x%08lx\n",
724 fit_uname_kernel, img_addr);
725#endif
726 } else {
727 img_addr = simple_strtoul(argv[0], NULL, 16);
728 debug("* kernel: cmdline image address = 0x%08lx\n",
729 img_addr);
730 }
731
732 bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
733
734 /* copy from dataflash if needed */
735 img_addr = genimg_get_image(img_addr);
736
737 /* check image type, for FIT images get FIT kernel node */
738 *os_data = *os_len = 0;
739 buf = map_sysmem(img_addr, 0);
740 switch (genimg_get_format(buf)) {
741#if defined(CONFIG_IMAGE_FORMAT_LEGACY)
742 case IMAGE_FORMAT_LEGACY:
743 printf("## Booting kernel from Legacy Image at %08lx ...\n",
744 img_addr);
745 hdr = image_get_kernel(img_addr, images->verify);
746 if (!hdr)
747 return NULL;
748 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
749
750 /* get os_data and os_len */
751 switch (image_get_type(hdr)) {
752 case IH_TYPE_KERNEL:
753 case IH_TYPE_KERNEL_NOLOAD:
754 *os_data = image_get_data(hdr);
755 *os_len = image_get_data_size(hdr);
756 break;
757 case IH_TYPE_MULTI:
758 image_multi_getimg(hdr, 0, os_data, os_len);
759 break;
760 case IH_TYPE_STANDALONE:
761 *os_data = image_get_data(hdr);
762 *os_len = image_get_data_size(hdr);
763 break;
764 default:
765 printf("Wrong Image Type for %s command\n",
766 cmdtp->name);
767 bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
768 return NULL;
769 }
770
771 /*
772 * copy image header to allow for image overwrites during
773 * kernel decompression.
774 */
775 memmove(&images->legacy_hdr_os_copy, hdr,
776 sizeof(image_header_t));
777
778 /* save pointer to image header */
779 images->legacy_hdr_os = hdr;
780
781 images->legacy_hdr_valid = 1;
782 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
783 break;
784#endif
785#if defined(CONFIG_FIT)
786 case IMAGE_FORMAT_FIT:
126cc864 787 os_noffset = fit_image_load(images, img_addr,
b6396403
SG		 788 &fit_uname_kernel, &fit_uname_config,
789 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
790 BOOTSTAGE_ID_FIT_KERNEL_START,
791 FIT_LOAD_IGNORED, os_data, os_len);
792 if (os_noffset < 0)
793 return NULL;
794
795 images->fit_hdr_os = map_sysmem(img_addr, 0);
796 images->fit_uname_os = fit_uname_kernel;
797 images->fit_uname_cfg = fit_uname_config;
798 images->fit_noffset_os = os_noffset;
799 break;
800#endif
801#ifdef CONFIG_ANDROID_BOOT_IMAGE
802 case IMAGE_FORMAT_ANDROID:
803 printf("## Booting Android Image at 0x%08lx ...\n", img_addr);
07c0cd71 804 if (android_image_get_kernel(buf, images->verify,
b6396403
SG		 805 os_data, os_len))
806 return NULL;
807 break;
808#endif
809 default:
810 printf("Wrong Image Format for %s command\n", cmdtp->name);
811 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
812 return NULL;
813 }
814
815 debug(" kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
816 *os_data, *os_len, *os_len);
817
818 return buf;
819}
ea51a628
SG		 820
821#endif /* ndef USE_HOSTCC */
"Das U-Boot" Source Tree