]> git.sur5r.net Git - u-boot/blob - common/bootm.c
Merge branch 'master' of git://git.denx.de/u-boot-usb
[u-boot] / common / bootm.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2000-2009
4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5  */
6
7 #ifndef USE_HOSTCC
8 #include <common.h>
9 #include <bootstage.h>
10 #include <bzlib.h>
11 #include <errno.h>
12 #include <fdt_support.h>
13 #include <lmb.h>
14 #include <malloc.h>
15 #include <mapmem.h>
16 #include <asm/io.h>
17 #include <linux/lzo.h>
18 #include <lzma/LzmaTypes.h>
19 #include <lzma/LzmaDec.h>
20 #include <lzma/LzmaTools.h>
21 #if defined(CONFIG_CMD_USB)
22 #include <usb.h>
23 #endif
24 #else
25 #include "mkimage.h"
26 #endif
27
28 #include <command.h>
29 #include <bootm.h>
30 #include <image.h>
31
32 #ifndef CONFIG_SYS_BOOTM_LEN
33 /* use 8MByte as default max gunzip size */
34 #define CONFIG_SYS_BOOTM_LEN    0x800000
35 #endif
36
37 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
38
39 #ifndef USE_HOSTCC
40
41 DECLARE_GLOBAL_DATA_PTR;
42
43 bootm_headers_t images;         /* pointers to os/initrd/fdt images */
44
45 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
46                                    char * const argv[], bootm_headers_t *images,
47                                    ulong *os_data, ulong *os_len);
48
49 #ifdef CONFIG_LMB
50 static void boot_start_lmb(bootm_headers_t *images)
51 {
52         ulong           mem_start;
53         phys_size_t     mem_size;
54
55         lmb_init(&images->lmb);
56
57         mem_start = env_get_bootm_low();
58         mem_size = env_get_bootm_size();
59
60         lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
61
62         arch_lmb_reserve(&images->lmb);
63         board_lmb_reserve(&images->lmb);
64 }
65 #else
66 #define lmb_reserve(lmb, base, size)
67 static inline void boot_start_lmb(bootm_headers_t *images) { }
68 #endif
69
70 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc,
71                        char * const argv[])
72 {
73         memset((void *)&images, 0, sizeof(images));
74         images.verify = env_get_yesno("verify");
75
76         boot_start_lmb(&images);
77
78         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
79         images.state = BOOTM_STATE_START;
80
81         return 0;
82 }
83
84 static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc,
85                          char * const argv[])
86 {
87         const void *os_hdr;
88         bool ep_found = false;
89         int ret;
90
91         /* get kernel image header, start address and length */
92         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
93                         &images, &images.os.image_start, &images.os.image_len);
94         if (images.os.image_len == 0) {
95                 puts("ERROR: can't get kernel image!\n");
96                 return 1;
97         }
98
99         /* get image parameters */
100         switch (genimg_get_format(os_hdr)) {
101 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
102         case IMAGE_FORMAT_LEGACY:
103                 images.os.type = image_get_type(os_hdr);
104                 images.os.comp = image_get_comp(os_hdr);
105                 images.os.os = image_get_os(os_hdr);
106
107                 images.os.end = image_get_image_end(os_hdr);
108                 images.os.load = image_get_load(os_hdr);
109                 images.os.arch = image_get_arch(os_hdr);
110                 break;
111 #endif
112 #if IMAGE_ENABLE_FIT
113         case IMAGE_FORMAT_FIT:
114                 if (fit_image_get_type(images.fit_hdr_os,
115                                        images.fit_noffset_os,
116                                        &images.os.type)) {
117                         puts("Can't get image type!\n");
118                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
119                         return 1;
120                 }
121
122                 if (fit_image_get_comp(images.fit_hdr_os,
123                                        images.fit_noffset_os,
124                                        &images.os.comp)) {
125                         puts("Can't get image compression!\n");
126                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
127                         return 1;
128                 }
129
130                 if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os,
131                                      &images.os.os)) {
132                         puts("Can't get image OS!\n");
133                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
134                         return 1;
135                 }
136
137                 if (fit_image_get_arch(images.fit_hdr_os,
138                                        images.fit_noffset_os,
139                                        &images.os.arch)) {
140                         puts("Can't get image ARCH!\n");
141                         return 1;
142                 }
143
144                 images.os.end = fit_get_end(images.fit_hdr_os);
145
146                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
147                                        &images.os.load)) {
148                         puts("Can't get image load address!\n");
149                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
150                         return 1;
151                 }
152                 break;
153 #endif
154 #ifdef CONFIG_ANDROID_BOOT_IMAGE
155         case IMAGE_FORMAT_ANDROID:
156                 images.os.type = IH_TYPE_KERNEL;
157                 images.os.comp = IH_COMP_NONE;
158                 images.os.os = IH_OS_LINUX;
159
160                 images.os.end = android_image_get_end(os_hdr);
161                 images.os.load = android_image_get_kload(os_hdr);
162                 images.ep = images.os.load;
163                 ep_found = true;
164                 break;
165 #endif
166         default:
167                 puts("ERROR: unknown image format type!\n");
168                 return 1;
169         }
170
171         /* If we have a valid setup.bin, we will use that for entry (x86) */
172         if (images.os.arch == IH_ARCH_I386 ||
173             images.os.arch == IH_ARCH_X86_64) {
174                 ulong len;
175
176                 ret = boot_get_setup(&images, IH_ARCH_I386, &images.ep, &len);
177                 if (ret < 0 && ret != -ENOENT) {
178                         puts("Could not find a valid setup.bin for x86\n");
179                         return 1;
180                 }
181                 /* Kernel entry point is the setup.bin */
182         } else if (images.legacy_hdr_valid) {
183                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
184 #if IMAGE_ENABLE_FIT
185         } else if (images.fit_uname_os) {
186                 int ret;
187
188                 ret = fit_image_get_entry(images.fit_hdr_os,
189                                           images.fit_noffset_os, &images.ep);
190                 if (ret) {
191                         puts("Can't get entry point property!\n");
192                         return 1;
193                 }
194 #endif
195         } else if (!ep_found) {
196                 puts("Could not find kernel entry point!\n");
197                 return 1;
198         }
199
200         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
201                 images.os.load = images.os.image_start;
202                 images.ep += images.os.load;
203         }
204
205         images.os.start = map_to_sysmem(os_hdr);
206
207         return 0;
208 }
209
210 /**
211  * bootm_find_images - wrapper to find and locate various images
212  * @flag: Ignored Argument
213  * @argc: command argument count
214  * @argv: command argument list
215  *
216  * boot_find_images() will attempt to load an available ramdisk,
217  * flattened device tree, as well as specifically marked
218  * "loadable" images (loadables are FIT only)
219  *
220  * Note: bootm_find_images will skip an image if it is not found
221  *
222  * @return:
223  *     0, if all existing images were loaded correctly
224  *     1, if an image is found but corrupted, or invalid
225  */
226 int bootm_find_images(int flag, int argc, char * const argv[])
227 {
228         int ret;
229
230         /* find ramdisk */
231         ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
232                                &images.rd_start, &images.rd_end);
233         if (ret) {
234                 puts("Ramdisk image is corrupt or invalid\n");
235                 return 1;
236         }
237
238 #if IMAGE_ENABLE_OF_LIBFDT
239         /* find flattened device tree */
240         ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
241                            &images.ft_addr, &images.ft_len);
242         if (ret) {
243                 puts("Could not find a valid device tree\n");
244                 return 1;
245         }
246         set_working_fdt_addr((ulong)images.ft_addr);
247 #endif
248
249 #if IMAGE_ENABLE_FIT
250 #if defined(CONFIG_FPGA)
251         /* find bitstreams */
252         ret = boot_get_fpga(argc, argv, &images, IH_ARCH_DEFAULT,
253                             NULL, NULL);
254         if (ret) {
255                 printf("FPGA image is corrupted or invalid\n");
256                 return 1;
257         }
258 #endif
259
260         /* find all of the loadables */
261         ret = boot_get_loadable(argc, argv, &images, IH_ARCH_DEFAULT,
262                                NULL, NULL);
263         if (ret) {
264                 printf("Loadable(s) is corrupt or invalid\n");
265                 return 1;
266         }
267 #endif
268
269         return 0;
270 }
271
272 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
273                             char * const argv[])
274 {
275         if (((images.os.type == IH_TYPE_KERNEL) ||
276              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
277              (images.os.type == IH_TYPE_MULTI)) &&
278             (images.os.os == IH_OS_LINUX ||
279                  images.os.os == IH_OS_VXWORKS))
280                 return bootm_find_images(flag, argc, argv);
281
282         return 0;
283 }
284 #endif /* USE_HOSTC */
285
286 /**
287  * print_decomp_msg() - Print a suitable decompression/loading message
288  *
289  * @type:       OS type (IH_OS_...)
290  * @comp_type:  Compression type being used (IH_COMP_...)
291  * @is_xip:     true if the load address matches the image start
292  */
293 static void print_decomp_msg(int comp_type, int type, bool is_xip)
294 {
295         const char *name = genimg_get_type_name(type);
296
297         if (comp_type == IH_COMP_NONE)
298                 printf("   %s %s ... ", is_xip ? "XIP" : "Loading", name);
299         else
300                 printf("   Uncompressing %s ... ", name);
301 }
302
303 /**
304  * handle_decomp_error() - display a decompression error
305  *
306  * This function tries to produce a useful message. In the case where the
307  * uncompressed size is the same as the available space, we can assume that
308  * the image is too large for the buffer.
309  *
310  * @comp_type:          Compression type being used (IH_COMP_...)
311  * @uncomp_size:        Number of bytes uncompressed
312  * @unc_len:            Amount of space available for decompression
313  * @ret:                Error code to report
314  * @return BOOTM_ERR_RESET, indicating that the board must be reset
315  */
316 static int handle_decomp_error(int comp_type, size_t uncomp_size,
317                                size_t unc_len, int ret)
318 {
319         const char *name = genimg_get_comp_name(comp_type);
320
321         if (uncomp_size >= unc_len)
322                 printf("Image too large: increase CONFIG_SYS_BOOTM_LEN\n");
323         else
324                 printf("%s: uncompress error %d\n", name, ret);
325
326         /*
327          * The decompression routines are now safe, so will not write beyond
328          * their bounds. Probably it is not necessary to reset, but maintain
329          * the current behaviour for now.
330          */
331         printf("Must RESET board to recover\n");
332 #ifndef USE_HOSTCC
333         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
334 #endif
335
336         return BOOTM_ERR_RESET;
337 }
338
339 int bootm_decomp_image(int comp, ulong load, ulong image_start, int type,
340                        void *load_buf, void *image_buf, ulong image_len,
341                        uint unc_len, ulong *load_end)
342 {
343         int ret = 0;
344
345         *load_end = load;
346         print_decomp_msg(comp, type, load == image_start);
347
348         /*
349          * Load the image to the right place, decompressing if needed. After
350          * this, image_len will be set to the number of uncompressed bytes
351          * loaded, ret will be non-zero on error.
352          */
353         switch (comp) {
354         case IH_COMP_NONE:
355                 if (load == image_start)
356                         break;
357                 if (image_len <= unc_len)
358                         memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
359                 else
360                         ret = 1;
361                 break;
362 #ifdef CONFIG_GZIP
363         case IH_COMP_GZIP: {
364                 ret = gunzip(load_buf, unc_len, image_buf, &image_len);
365                 break;
366         }
367 #endif /* CONFIG_GZIP */
368 #ifdef CONFIG_BZIP2
369         case IH_COMP_BZIP2: {
370                 uint size = unc_len;
371
372                 /*
373                  * If we've got less than 4 MB of malloc() space,
374                  * use slower decompression algorithm which requires
375                  * at most 2300 KB of memory.
376                  */
377                 ret = BZ2_bzBuffToBuffDecompress(load_buf, &size,
378                         image_buf, image_len,
379                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
380                 image_len = size;
381                 break;
382         }
383 #endif /* CONFIG_BZIP2 */
384 #ifdef CONFIG_LZMA
385         case IH_COMP_LZMA: {
386                 SizeT lzma_len = unc_len;
387
388                 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
389                                                image_buf, image_len);
390                 image_len = lzma_len;
391                 break;
392         }
393 #endif /* CONFIG_LZMA */
394 #ifdef CONFIG_LZO
395         case IH_COMP_LZO: {
396                 size_t size = unc_len;
397
398                 ret = lzop_decompress(image_buf, image_len, load_buf, &size);
399                 image_len = size;
400                 break;
401         }
402 #endif /* CONFIG_LZO */
403 #ifdef CONFIG_LZ4
404         case IH_COMP_LZ4: {
405                 size_t size = unc_len;
406
407                 ret = ulz4fn(image_buf, image_len, load_buf, &size);
408                 image_len = size;
409                 break;
410         }
411 #endif /* CONFIG_LZ4 */
412         default:
413                 printf("Unimplemented compression type %d\n", comp);
414                 return BOOTM_ERR_UNIMPLEMENTED;
415         }
416
417         if (ret)
418                 return handle_decomp_error(comp, image_len, unc_len, ret);
419         *load_end = load + image_len;
420
421         puts("OK\n");
422
423         return 0;
424 }
425
426 #ifndef USE_HOSTCC
427 static int bootm_load_os(bootm_headers_t *images, int boot_progress)
428 {
429         image_info_t os = images->os;
430         ulong load = os.load;
431         ulong load_end;
432         ulong blob_start = os.start;
433         ulong blob_end = os.end;
434         ulong image_start = os.image_start;
435         ulong image_len = os.image_len;
436         ulong flush_start = ALIGN_DOWN(load, ARCH_DMA_MINALIGN);
437         ulong flush_len;
438         bool no_overlap;
439         void *load_buf, *image_buf;
440         int err;
441
442         load_buf = map_sysmem(load, 0);
443         image_buf = map_sysmem(os.image_start, image_len);
444         err = bootm_decomp_image(os.comp, load, os.image_start, os.type,
445                                  load_buf, image_buf, image_len,
446                                  CONFIG_SYS_BOOTM_LEN, &load_end);
447         if (err) {
448                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
449                 return err;
450         }
451
452         flush_len = load_end - load;
453         if (flush_start < load)
454                 flush_len += load - flush_start;
455
456         flush_cache(flush_start, ALIGN(flush_len, ARCH_DMA_MINALIGN));
457
458         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, load_end);
459         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
460
461         no_overlap = (os.comp == IH_COMP_NONE && load == image_start);
462
463         if (!no_overlap && load < blob_end && load_end > blob_start) {
464                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
465                       blob_start, blob_end);
466                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
467                       load_end);
468
469                 /* Check what type of image this is. */
470                 if (images->legacy_hdr_valid) {
471                         if (image_get_type(&images->legacy_hdr_os_copy)
472                                         == IH_TYPE_MULTI)
473                                 puts("WARNING: legacy format multi component image overwritten\n");
474                         return BOOTM_ERR_OVERLAP;
475                 } else {
476                         puts("ERROR: new format image overwritten - must RESET the board to recover\n");
477                         bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
478                         return BOOTM_ERR_RESET;
479                 }
480         }
481
482         lmb_reserve(&images->lmb, images->os.load, (load_end -
483                                                     images->os.load));
484         return 0;
485 }
486
487 /**
488  * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
489  *
490  * @return interrupt flag (0 if interrupts were disabled, non-zero if they were
491  *      enabled)
492  */
493 ulong bootm_disable_interrupts(void)
494 {
495         ulong iflag;
496
497         /*
498          * We have reached the point of no return: we are going to
499          * overwrite all exception vector code, so we cannot easily
500          * recover from any failures any more...
501          */
502         iflag = disable_interrupts();
503 #ifdef CONFIG_NETCONSOLE
504         /* Stop the ethernet stack if NetConsole could have left it up */
505         eth_halt();
506 # ifndef CONFIG_DM_ETH
507         eth_unregister(eth_get_dev());
508 # endif
509 #endif
510
511 #if defined(CONFIG_CMD_USB)
512         /*
513          * turn off USB to prevent the host controller from writing to the
514          * SDRAM while Linux is booting. This could happen (at least for OHCI
515          * controller), because the HCCA (Host Controller Communication Area)
516          * lies within the SDRAM and the host controller writes continously to
517          * this area (as busmaster!). The HccaFrameNumber is for example
518          * updated every 1 ms within the HCCA structure in SDRAM! For more
519          * details see the OpenHCI specification.
520          */
521         usb_stop();
522 #endif
523         return iflag;
524 }
525
526 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
527
528 #define CONSOLE_ARG     "console="
529 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
530
531 static void fixup_silent_linux(void)
532 {
533         char *buf;
534         const char *env_val;
535         char *cmdline = env_get("bootargs");
536         int want_silent;
537
538         /*
539          * Only fix cmdline when requested. The environment variable can be:
540          *
541          *      no - we never fixup
542          *      yes - we always fixup
543          *      unset - we rely on the console silent flag
544          */
545         want_silent = env_get_yesno("silent_linux");
546         if (want_silent == 0)
547                 return;
548         else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
549                 return;
550
551         debug("before silent fix-up: %s\n", cmdline);
552         if (cmdline && (cmdline[0] != '\0')) {
553                 char *start = strstr(cmdline, CONSOLE_ARG);
554
555                 /* Allocate space for maximum possible new command line */
556                 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
557                 if (!buf) {
558                         debug("%s: out of memory\n", __func__);
559                         return;
560                 }
561
562                 if (start) {
563                         char *end = strchr(start, ' ');
564                         int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
565
566                         strncpy(buf, cmdline, num_start_bytes);
567                         if (end)
568                                 strcpy(buf + num_start_bytes, end);
569                         else
570                                 buf[num_start_bytes] = '\0';
571                 } else {
572                         sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
573                 }
574                 env_val = buf;
575         } else {
576                 buf = NULL;
577                 env_val = CONSOLE_ARG;
578         }
579
580         env_set("bootargs", env_val);
581         debug("after silent fix-up: %s\n", env_val);
582         free(buf);
583 }
584 #endif /* CONFIG_SILENT_CONSOLE */
585
586 /**
587  * Execute selected states of the bootm command.
588  *
589  * Note the arguments to this state must be the first argument, Any 'bootm'
590  * or sub-command arguments must have already been taken.
591  *
592  * Note that if states contains more than one flag it MUST contain
593  * BOOTM_STATE_START, since this handles and consumes the command line args.
594  *
595  * Also note that aside from boot_os_fn functions and bootm_load_os no other
596  * functions we store the return value of in 'ret' may use a negative return
597  * value, without special handling.
598  *
599  * @param cmdtp         Pointer to bootm command table entry
600  * @param flag          Command flags (CMD_FLAG_...)
601  * @param argc          Number of subcommand arguments (0 = no arguments)
602  * @param argv          Arguments
603  * @param states        Mask containing states to run (BOOTM_STATE_...)
604  * @param images        Image header information
605  * @param boot_progress 1 to show boot progress, 0 to not do this
606  * @return 0 if ok, something else on error. Some errors will cause this
607  *      function to perform a reboot! If states contains BOOTM_STATE_OS_GO
608  *      then the intent is to boot an OS, so this function will not return
609  *      unless the image type is standalone.
610  */
611 int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
612                     int states, bootm_headers_t *images, int boot_progress)
613 {
614         boot_os_fn *boot_fn;
615         ulong iflag = 0;
616         int ret = 0, need_boot_fn;
617
618         images->state |= states;
619
620         /*
621          * Work through the states and see how far we get. We stop on
622          * any error.
623          */
624         if (states & BOOTM_STATE_START)
625                 ret = bootm_start(cmdtp, flag, argc, argv);
626
627         if (!ret && (states & BOOTM_STATE_FINDOS))
628                 ret = bootm_find_os(cmdtp, flag, argc, argv);
629
630         if (!ret && (states & BOOTM_STATE_FINDOTHER))
631                 ret = bootm_find_other(cmdtp, flag, argc, argv);
632
633         /* Load the OS */
634         if (!ret && (states & BOOTM_STATE_LOADOS)) {
635                 iflag = bootm_disable_interrupts();
636                 ret = bootm_load_os(images, 0);
637                 if (ret && ret != BOOTM_ERR_OVERLAP)
638                         goto err;
639                 else if (ret == BOOTM_ERR_OVERLAP)
640                         ret = 0;
641         }
642
643         /* Relocate the ramdisk */
644 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
645         if (!ret && (states & BOOTM_STATE_RAMDISK)) {
646                 ulong rd_len = images->rd_end - images->rd_start;
647
648                 ret = boot_ramdisk_high(&images->lmb, images->rd_start,
649                         rd_len, &images->initrd_start, &images->initrd_end);
650                 if (!ret) {
651                         env_set_hex("initrd_start", images->initrd_start);
652                         env_set_hex("initrd_end", images->initrd_end);
653                 }
654         }
655 #endif
656 #if IMAGE_ENABLE_OF_LIBFDT && defined(CONFIG_LMB)
657         if (!ret && (states & BOOTM_STATE_FDT)) {
658                 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
659                 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
660                                         &images->ft_len);
661         }
662 #endif
663
664         /* From now on, we need the OS boot function */
665         if (ret)
666                 return ret;
667         boot_fn = bootm_os_get_boot_func(images->os.os);
668         need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
669                         BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
670                         BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
671         if (boot_fn == NULL && need_boot_fn) {
672                 if (iflag)
673                         enable_interrupts();
674                 printf("ERROR: booting os '%s' (%d) is not supported\n",
675                        genimg_get_os_name(images->os.os), images->os.os);
676                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
677                 return 1;
678         }
679
680
681         /* Call various other states that are not generally used */
682         if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
683                 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images);
684         if (!ret && (states & BOOTM_STATE_OS_BD_T))
685                 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images);
686         if (!ret && (states & BOOTM_STATE_OS_PREP)) {
687 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
688                 if (images->os.os == IH_OS_LINUX)
689                         fixup_silent_linux();
690 #endif
691                 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images);
692         }
693
694 #ifdef CONFIG_TRACE
695         /* Pretend to run the OS, then run a user command */
696         if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
697                 char *cmd_list = env_get("fakegocmd");
698
699                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO,
700                                 images, boot_fn);
701                 if (!ret && cmd_list)
702                         ret = run_command_list(cmd_list, -1, flag);
703         }
704 #endif
705
706         /* Check for unsupported subcommand. */
707         if (ret) {
708                 puts("subcommand not supported\n");
709                 return ret;
710         }
711
712         /* Now run the OS! We hope this doesn't return */
713         if (!ret && (states & BOOTM_STATE_OS_GO))
714                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO,
715                                 images, boot_fn);
716
717         /* Deal with any fallout */
718 err:
719         if (iflag)
720                 enable_interrupts();
721
722         if (ret == BOOTM_ERR_UNIMPLEMENTED)
723                 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
724         else if (ret == BOOTM_ERR_RESET)
725                 do_reset(cmdtp, flag, argc, argv);
726
727         return ret;
728 }
729
730 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
731 /**
732  * image_get_kernel - verify legacy format kernel image
733  * @img_addr: in RAM address of the legacy format image to be verified
734  * @verify: data CRC verification flag
735  *
736  * image_get_kernel() verifies legacy image integrity and returns pointer to
737  * legacy image header if image verification was completed successfully.
738  *
739  * returns:
740  *     pointer to a legacy image header if valid image was found
741  *     otherwise return NULL
742  */
743 static image_header_t *image_get_kernel(ulong img_addr, int verify)
744 {
745         image_header_t *hdr = (image_header_t *)img_addr;
746
747         if (!image_check_magic(hdr)) {
748                 puts("Bad Magic Number\n");
749                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
750                 return NULL;
751         }
752         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
753
754         if (!image_check_hcrc(hdr)) {
755                 puts("Bad Header Checksum\n");
756                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
757                 return NULL;
758         }
759
760         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
761         image_print_contents(hdr);
762
763         if (verify) {
764                 puts("   Verifying Checksum ... ");
765                 if (!image_check_dcrc(hdr)) {
766                         printf("Bad Data CRC\n");
767                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
768                         return NULL;
769                 }
770                 puts("OK\n");
771         }
772         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
773
774         if (!image_check_target_arch(hdr)) {
775                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
776                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
777                 return NULL;
778         }
779         return hdr;
780 }
781 #endif
782
783 /**
784  * boot_get_kernel - find kernel image
785  * @os_data: pointer to a ulong variable, will hold os data start address
786  * @os_len: pointer to a ulong variable, will hold os data length
787  *
788  * boot_get_kernel() tries to find a kernel image, verifies its integrity
789  * and locates kernel data.
790  *
791  * returns:
792  *     pointer to image header if valid image was found, plus kernel start
793  *     address and length, otherwise NULL
794  */
795 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
796                                    char * const argv[], bootm_headers_t *images,
797                                    ulong *os_data, ulong *os_len)
798 {
799 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
800         image_header_t  *hdr;
801 #endif
802         ulong           img_addr;
803         const void *buf;
804         const char      *fit_uname_config = NULL;
805         const char      *fit_uname_kernel = NULL;
806 #if IMAGE_ENABLE_FIT
807         int             os_noffset;
808 #endif
809
810         img_addr = genimg_get_kernel_addr_fit(argc < 1 ? NULL : argv[0],
811                                               &fit_uname_config,
812                                               &fit_uname_kernel);
813
814         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
815
816         /* check image type, for FIT images get FIT kernel node */
817         *os_data = *os_len = 0;
818         buf = map_sysmem(img_addr, 0);
819         switch (genimg_get_format(buf)) {
820 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
821         case IMAGE_FORMAT_LEGACY:
822                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
823                        img_addr);
824                 hdr = image_get_kernel(img_addr, images->verify);
825                 if (!hdr)
826                         return NULL;
827                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
828
829                 /* get os_data and os_len */
830                 switch (image_get_type(hdr)) {
831                 case IH_TYPE_KERNEL:
832                 case IH_TYPE_KERNEL_NOLOAD:
833                         *os_data = image_get_data(hdr);
834                         *os_len = image_get_data_size(hdr);
835                         break;
836                 case IH_TYPE_MULTI:
837                         image_multi_getimg(hdr, 0, os_data, os_len);
838                         break;
839                 case IH_TYPE_STANDALONE:
840                         *os_data = image_get_data(hdr);
841                         *os_len = image_get_data_size(hdr);
842                         break;
843                 default:
844                         printf("Wrong Image Type for %s command\n",
845                                cmdtp->name);
846                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
847                         return NULL;
848                 }
849
850                 /*
851                  * copy image header to allow for image overwrites during
852                  * kernel decompression.
853                  */
854                 memmove(&images->legacy_hdr_os_copy, hdr,
855                         sizeof(image_header_t));
856
857                 /* save pointer to image header */
858                 images->legacy_hdr_os = hdr;
859
860                 images->legacy_hdr_valid = 1;
861                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
862                 break;
863 #endif
864 #if IMAGE_ENABLE_FIT
865         case IMAGE_FORMAT_FIT:
866                 os_noffset = fit_image_load(images, img_addr,
867                                 &fit_uname_kernel, &fit_uname_config,
868                                 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
869                                 BOOTSTAGE_ID_FIT_KERNEL_START,
870                                 FIT_LOAD_IGNORED, os_data, os_len);
871                 if (os_noffset < 0)
872                         return NULL;
873
874                 images->fit_hdr_os = map_sysmem(img_addr, 0);
875                 images->fit_uname_os = fit_uname_kernel;
876                 images->fit_uname_cfg = fit_uname_config;
877                 images->fit_noffset_os = os_noffset;
878                 break;
879 #endif
880 #ifdef CONFIG_ANDROID_BOOT_IMAGE
881         case IMAGE_FORMAT_ANDROID:
882                 printf("## Booting Android Image at 0x%08lx ...\n", img_addr);
883                 if (android_image_get_kernel(buf, images->verify,
884                                              os_data, os_len))
885                         return NULL;
886                 break;
887 #endif
888         default:
889                 printf("Wrong Image Format for %s command\n", cmdtp->name);
890                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
891                 return NULL;
892         }
893
894         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
895               *os_data, *os_len, *os_len);
896
897         return buf;
898 }
899 #else /* USE_HOSTCC */
900
901 void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
902 {
903         memmove(to, from, len);
904 }
905
906 static int bootm_host_load_image(const void *fit, int req_image_type)
907 {
908         const char *fit_uname_config = NULL;
909         ulong data, len;
910         bootm_headers_t images;
911         int noffset;
912         ulong load_end;
913         uint8_t image_type;
914         uint8_t imape_comp;
915         void *load_buf;
916         int ret;
917
918         memset(&images, '\0', sizeof(images));
919         images.verify = 1;
920         noffset = fit_image_load(&images, (ulong)fit,
921                 NULL, &fit_uname_config,
922                 IH_ARCH_DEFAULT, req_image_type, -1,
923                 FIT_LOAD_IGNORED, &data, &len);
924         if (noffset < 0)
925                 return noffset;
926         if (fit_image_get_type(fit, noffset, &image_type)) {
927                 puts("Can't get image type!\n");
928                 return -EINVAL;
929         }
930
931         if (fit_image_get_comp(fit, noffset, &imape_comp)) {
932                 puts("Can't get image compression!\n");
933                 return -EINVAL;
934         }
935
936         /* Allow the image to expand by a factor of 4, should be safe */
937         load_buf = malloc((1 << 20) + len * 4);
938         ret = bootm_decomp_image(imape_comp, 0, data, image_type, load_buf,
939                                  (void *)data, len, CONFIG_SYS_BOOTM_LEN,
940                                  &load_end);
941         free(load_buf);
942
943         if (ret && ret != BOOTM_ERR_UNIMPLEMENTED)
944                 return ret;
945
946         return 0;
947 }
948
949 int bootm_host_load_images(const void *fit, int cfg_noffset)
950 {
951         static uint8_t image_types[] = {
952                 IH_TYPE_KERNEL,
953                 IH_TYPE_FLATDT,
954                 IH_TYPE_RAMDISK,
955         };
956         int err = 0;
957         int i;
958
959         for (i = 0; i < ARRAY_SIZE(image_types); i++) {
960                 int ret;
961
962                 ret = bootm_host_load_image(fit, image_types[i]);
963                 if (!err && ret && ret != -ENOENT)
964                         err = ret;
965         }
966
967         /* Return the first error we found */
968         return err;
969 }
970
971 #endif /* ndef USE_HOSTCC */