Merge remote-tracking branch 'u-boot/master' into test
[karo-tx-uboot.git] / common / cmd_bootm.c
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
8
9 /*
10  * Boot support
11  */
12 #include <common.h>
13 #include <watchdog.h>
14 #include <command.h>
15 #include <image.h>
16 #include <malloc.h>
17 #include <u-boot/zlib.h>
18 #include <bzlib.h>
19 #include <environment.h>
20 #include <lmb.h>
21 #include <linux/ctype.h>
22 #include <asm/byteorder.h>
23 #include <asm/io.h>
24 #include <linux/compiler.h>
25
26 #if defined(CONFIG_BOOTM_VXWORKS) && \
27         (defined(CONFIG_PPC) || defined(CONFIG_ARM))
28 #include <vxworks.h>
29 #endif
30
31 #if defined(CONFIG_CMD_USB)
32 #include <usb.h>
33 #endif
34
35 #ifdef CONFIG_SYS_HUSH_PARSER
36 #include <hush.h>
37 #endif
38
39 #if defined(CONFIG_OF_LIBFDT)
40 #include <libfdt.h>
41 #include <fdt_support.h>
42 #endif
43
44 #ifdef CONFIG_LZMA
45 #include <lzma/LzmaTypes.h>
46 #include <lzma/LzmaDec.h>
47 #include <lzma/LzmaTools.h>
48 #endif /* CONFIG_LZMA */
49
50 #ifdef CONFIG_LZO
51 #include <linux/lzo.h>
52 #endif /* CONFIG_LZO */
53
54 DECLARE_GLOBAL_DATA_PTR;
55
56 #ifndef CONFIG_SYS_BOOTM_LEN
57 #define CONFIG_SYS_BOOTM_LEN    0x800000        /* use 8MByte as default max gunzip size */
58 #endif
59
60 #ifdef CONFIG_BZIP2
61 extern void bz_internal_error(int);
62 #endif
63
64 #if defined(CONFIG_CMD_IMI)
65 static int image_info(unsigned long addr);
66 #endif
67
68 #if defined(CONFIG_CMD_IMLS)
69 #include <flash.h>
70 #include <mtd/cfi_flash.h>
71 extern flash_info_t flash_info[]; /* info for FLASH chips */
72 #endif
73
74 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
75 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
76 #endif
77
78 #include <linux/err.h>
79 #include <nand.h>
80
81 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
82 static void fixup_silent_linux(void);
83 #endif
84
85 static int do_bootm_standalone(int flag, int argc, char * const argv[],
86                                bootm_headers_t *images);
87
88 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
89                                 char * const argv[], bootm_headers_t *images,
90                                 ulong *os_data, ulong *os_len);
91
92 /*
93  *  Continue booting an OS image; caller already has:
94  *  - copied image header to global variable `header'
95  *  - checked header magic number, checksums (both header & image),
96  *  - verified image architecture (PPC) and type (KERNEL or MULTI),
97  *  - loaded (first part of) image to header load address,
98  *  - disabled interrupts.
99  *
100  * @flag: Flags indicating what to do (BOOTM_STATE_...)
101  * @argc: Number of arguments. Note that the arguments are shifted down
102  *       so that 0 is the first argument not processed by U-Boot, and
103  *       argc is adjusted accordingly. This avoids confusion as to how
104  *       many arguments are available for the OS.
105  * @images: Pointers to os/initrd/fdt
106  * @return 1 on error. On success the OS boots so this function does
107  * not return.
108  */
109 typedef int boot_os_fn(int flag, int argc, char * const argv[],
110                         bootm_headers_t *images);
111
112 #ifdef CONFIG_BOOTM_LINUX
113 extern boot_os_fn do_bootm_linux;
114 #endif
115 #ifdef CONFIG_BOOTM_NETBSD
116 static boot_os_fn do_bootm_netbsd;
117 #endif
118 #if defined(CONFIG_LYNXKDI)
119 static boot_os_fn do_bootm_lynxkdi;
120 extern void lynxkdi_boot(image_header_t *);
121 #endif
122 #ifdef CONFIG_BOOTM_RTEMS
123 static boot_os_fn do_bootm_rtems;
124 #endif
125 #if defined(CONFIG_BOOTM_OSE)
126 static boot_os_fn do_bootm_ose;
127 #endif
128 #if defined(CONFIG_BOOTM_PLAN9)
129 static boot_os_fn do_bootm_plan9;
130 #endif
131 #if defined(CONFIG_BOOTM_VXWORKS) && \
132         (defined(CONFIG_PPC) || defined(CONFIG_ARM))
133 static boot_os_fn do_bootm_vxworks;
134 #endif
135 #if defined(CONFIG_CMD_ELF)
136 static boot_os_fn do_bootm_qnxelf;
137 int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
138 int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
139 #endif
140 #if defined(CONFIG_INTEGRITY)
141 static boot_os_fn do_bootm_integrity;
142 #endif
143
144 static boot_os_fn *boot_os[] = {
145         [IH_OS_U_BOOT] = do_bootm_standalone,
146 #ifdef CONFIG_BOOTM_LINUX
147         [IH_OS_LINUX] = do_bootm_linux,
148 #endif
149 #ifdef CONFIG_BOOTM_NETBSD
150         [IH_OS_NETBSD] = do_bootm_netbsd,
151 #endif
152 #ifdef CONFIG_LYNXKDI
153         [IH_OS_LYNXOS] = do_bootm_lynxkdi,
154 #endif
155 #ifdef CONFIG_BOOTM_RTEMS
156         [IH_OS_RTEMS] = do_bootm_rtems,
157 #endif
158 #if defined(CONFIG_BOOTM_OSE)
159         [IH_OS_OSE] = do_bootm_ose,
160 #endif
161 #if defined(CONFIG_BOOTM_PLAN9)
162         [IH_OS_PLAN9] = do_bootm_plan9,
163 #endif
164 #if defined(CONFIG_BOOTM_VXWORKS) && \
165         (defined(CONFIG_PPC) || defined(CONFIG_ARM))
166         [IH_OS_VXWORKS] = do_bootm_vxworks,
167 #endif
168 #if defined(CONFIG_CMD_ELF)
169         [IH_OS_QNX] = do_bootm_qnxelf,
170 #endif
171 #ifdef CONFIG_INTEGRITY
172         [IH_OS_INTEGRITY] = do_bootm_integrity,
173 #endif
174 };
175
176 bootm_headers_t images;         /* pointers to os/initrd/fdt images */
177
178 /* Allow for arch specific config before we boot */
179 static void __arch_preboot_os(void)
180 {
181         /* please define platform specific arch_preboot_os() */
182 }
183 void arch_preboot_os(void) __attribute__((weak, alias("__arch_preboot_os")));
184
185 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
186
187 #ifdef CONFIG_LMB
188 static void boot_start_lmb(bootm_headers_t *images)
189 {
190         ulong           mem_start;
191         phys_size_t     mem_size;
192
193         lmb_init(&images->lmb);
194
195         mem_start = getenv_bootm_low();
196         mem_size = getenv_bootm_size();
197
198         lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
199
200         arch_lmb_reserve(&images->lmb);
201         board_lmb_reserve(&images->lmb);
202 }
203 #else
204 #define lmb_reserve(lmb, base, size)
205 static inline void boot_start_lmb(bootm_headers_t *images) { }
206 #endif
207
208 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
209 {
210         memset((void *)&images, 0, sizeof(images));
211         images.verify = getenv_yesno("verify");
212
213         boot_start_lmb(&images);
214
215         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
216         images.state = BOOTM_STATE_START;
217
218         return 0;
219 }
220
221 static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc,
222                          char * const argv[])
223 {
224         const void *os_hdr;
225         bool ep_found = false;
226
227         /* get kernel image header, start address and length */
228         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
229                         &images, &images.os.image_start, &images.os.image_len);
230         if (images.os.image_len == 0) {
231                 puts("ERROR: can't get kernel image!\n");
232                 return 1;
233         }
234
235         /* get image parameters */
236         switch (genimg_get_format(os_hdr)) {
237         case IMAGE_FORMAT_LEGACY:
238                 images.os.type = image_get_type(os_hdr);
239                 images.os.comp = image_get_comp(os_hdr);
240                 images.os.os = image_get_os(os_hdr);
241
242                 images.os.end = image_get_image_end(os_hdr);
243                 images.os.load = image_get_load(os_hdr);
244                 break;
245 #if defined(CONFIG_FIT)
246         case IMAGE_FORMAT_FIT:
247                 if (fit_image_get_type(images.fit_hdr_os,
248                                         images.fit_noffset_os, &images.os.type)) {
249                         puts("Can't get image type!\n");
250                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
251                         return 1;
252                 }
253
254                 if (fit_image_get_comp(images.fit_hdr_os,
255                                         images.fit_noffset_os, &images.os.comp)) {
256                         puts("Can't get image compression!\n");
257                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
258                         return 1;
259                 }
260
261                 if (fit_image_get_os(images.fit_hdr_os,
262                                         images.fit_noffset_os, &images.os.os)) {
263                         puts("Can't get image OS!\n");
264                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
265                         return 1;
266                 }
267
268                 images.os.end = fit_get_end(images.fit_hdr_os);
269
270                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
271                                         &images.os.load)) {
272                         puts("Can't get image load address!\n");
273                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
274                         return 1;
275                 }
276                 break;
277 #endif
278 #ifdef CONFIG_ANDROID_BOOT_IMAGE
279         case IMAGE_FORMAT_ANDROID:
280                 images.os.type = IH_TYPE_KERNEL;
281                 images.os.comp = IH_COMP_NONE;
282                 images.os.os = IH_OS_LINUX;
283                 images.ep = images.os.load;
284                 ep_found = true;
285
286                 images.os.end = android_image_get_end(os_hdr);
287                 images.os.load = android_image_get_kload(os_hdr);
288                 break;
289 #endif
290         default:
291                 puts("ERROR: unknown image format type!\n");
292                 return 1;
293         }
294
295         /* find kernel entry point */
296         if (images.legacy_hdr_valid) {
297                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
298 #if defined(CONFIG_FIT)
299         } else if (images.fit_uname_os) {
300                 int ret;
301
302                 ret = fit_image_get_entry(images.fit_hdr_os,
303                                           images.fit_noffset_os, &images.ep);
304                 if (ret) {
305                         puts("Can't get entry point property!\n");
306                         return 1;
307                 }
308 #endif
309         } else if (!ep_found) {
310                 puts("Could not find kernel entry point!\n");
311                 return 1;
312         }
313
314         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
315                 images.os.load = images.os.image_start;
316                 images.ep += images.os.load;
317         }
318
319         images.os.start = (ulong)os_hdr;
320
321         return 0;
322 }
323
324 static int bootm_find_ramdisk(int flag, int argc, char * const argv[])
325 {
326         int ret;
327
328         /* find ramdisk */
329         ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
330                                &images.rd_start, &images.rd_end);
331         if (ret) {
332                 puts("Ramdisk image is corrupt or invalid\n");
333                 return 1;
334         }
335
336         return 0;
337 }
338
339 #if defined(CONFIG_OF_LIBFDT)
340 static int bootm_find_fdt(int flag, int argc, char * const argv[])
341 {
342         int ret;
343
344         /* find flattened device tree */
345         ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
346                            &images.ft_addr, &images.ft_len);
347         if (ret) {
348                 puts("Could not find a valid device tree\n");
349                 return 1;
350         }
351
352         set_working_fdt_addr(images.ft_addr);
353
354         return 0;
355 }
356 #endif
357
358 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
359                             char * const argv[])
360 {
361         if (((images.os.type == IH_TYPE_KERNEL) ||
362              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
363              (images.os.type == IH_TYPE_MULTI)) &&
364             (images.os.os == IH_OS_LINUX ||
365                  images.os.os == IH_OS_VXWORKS)) {
366                 if (bootm_find_ramdisk(flag, argc, argv))
367                         return 1;
368
369 #if defined(CONFIG_OF_LIBFDT)
370                 if (bootm_find_fdt(flag, argc, argv))
371                         return 1;
372 #endif
373         }
374
375         return 0;
376 }
377
378 #define BOOTM_ERR_RESET         -1
379 #define BOOTM_ERR_OVERLAP       -2
380 #define BOOTM_ERR_UNIMPLEMENTED -3
381 static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end,
382                 int boot_progress)
383 {
384         image_info_t os = images->os;
385         uint8_t comp = os.comp;
386         ulong load = os.load;
387         ulong blob_start = os.start;
388         ulong blob_end = os.end;
389         ulong image_start = os.image_start;
390         ulong image_len = os.image_len;
391         __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
392         int no_overlap = 0;
393         void *load_buf, *image_buf;
394 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
395         int ret;
396 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
397
398         const char *type_name = genimg_get_type_name(os.type);
399
400         load_buf = map_sysmem(load, unc_len);
401         image_buf = map_sysmem(image_start, image_len);
402         switch (comp) {
403         case IH_COMP_NONE:
404                 if (load == image_start) {
405                         printf("   XIP %s ... ", type_name);
406                         no_overlap = 1;
407                 } else {
408                         printf("   Loading %s ... ", type_name);
409                         memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
410                 }
411                 *load_end = load + image_len;
412                 break;
413 #ifdef CONFIG_GZIP
414         case IH_COMP_GZIP:
415                 printf("   Uncompressing %s ... ", type_name);
416                 if (gunzip(load_buf, unc_len, image_buf, &image_len) != 0) {
417                         puts("GUNZIP: uncompress, out-of-mem or overwrite "
418                                 "error - must RESET board to recover\n");
419                         if (boot_progress)
420                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
421                         return BOOTM_ERR_RESET;
422                 }
423
424                 *load_end = load + image_len;
425                 break;
426 #endif /* CONFIG_GZIP */
427 #ifdef CONFIG_BZIP2
428         case IH_COMP_BZIP2:
429                 printf("   Uncompressing %s ... ", type_name);
430                 /*
431                  * If we've got less than 4 MB of malloc() space,
432                  * use slower decompression algorithm which requires
433                  * at most 2300 KB of memory.
434                  */
435                 int i = BZ2_bzBuffToBuffDecompress(load_buf, &unc_len,
436                         image_buf, image_len,
437                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
438                 if (i != BZ_OK) {
439                         printf("BUNZIP2: uncompress or overwrite error %d "
440                                 "- must RESET board to recover\n", i);
441                         if (boot_progress)
442                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
443                         return BOOTM_ERR_RESET;
444                 }
445
446                 *load_end = load + unc_len;
447                 break;
448 #endif /* CONFIG_BZIP2 */
449 #ifdef CONFIG_LZMA
450         case IH_COMP_LZMA: {
451                 SizeT lzma_len = unc_len;
452                 printf("   Uncompressing %s ... ", type_name);
453
454                 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
455                                                image_buf, image_len);
456                 unc_len = lzma_len;
457                 if (ret != SZ_OK) {
458                         printf("LZMA: uncompress or overwrite error %d "
459                                 "- must RESET board to recover\n", ret);
460                         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
461                         return BOOTM_ERR_RESET;
462                 }
463                 *load_end = load + unc_len;
464                 break;
465         }
466 #endif /* CONFIG_LZMA */
467 #ifdef CONFIG_LZO
468         case IH_COMP_LZO: {
469                 size_t size = unc_len;
470
471                 printf("   Uncompressing %s ... ", type_name);
472
473                 ret = lzop_decompress(image_buf, image_len, load_buf, &size);
474                 if (ret != LZO_E_OK) {
475                         printf("LZO: uncompress or overwrite error %d "
476                               "- must RESET board to recover\n", ret);
477                         if (boot_progress)
478                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
479                         return BOOTM_ERR_RESET;
480                 }
481
482                 *load_end = load + size;
483                 break;
484         }
485 #endif /* CONFIG_LZO */
486         default:
487                 printf("Unimplemented compression type %d\n", comp);
488                 return BOOTM_ERR_UNIMPLEMENTED;
489         }
490
491         flush_cache(load, (*load_end - load) * sizeof(ulong));
492
493         puts("OK\n");
494         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
495         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
496
497         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
498                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
499                         blob_start, blob_end);
500                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
501                         *load_end);
502
503                 /* Check what type of image this is. */
504                 if (images->legacy_hdr_valid) {
505                         if (image_get_type(&images->legacy_hdr_os_copy)
506                                         == IH_TYPE_MULTI)
507                                 puts("WARNING: legacy format multi component image overwritten\n");
508                         return BOOTM_ERR_OVERLAP;
509                 } else {
510                         puts("ERROR: new format image overwritten - must RESET the board to recover\n");
511                         bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
512                         return BOOTM_ERR_RESET;
513                 }
514         }
515
516         return 0;
517 }
518
519 static int do_bootm_standalone(int flag, int argc, char * const argv[],
520                                bootm_headers_t *images)
521 {
522         char  *s;
523         int   (*appl)(int, char * const []);
524
525         /* Don't start if "autostart" is set to "no" */
526         if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
527                 setenv_hex("filesize", images->os.image_len);
528                 return 0;
529         }
530         appl = (int (*)(int, char * const []))images->ep;
531         appl(argc, argv);
532         return 0;
533 }
534
535 /* we overload the cmd field with our state machine info instead of a
536  * function pointer */
537 static cmd_tbl_t cmd_bootm_sub[] = {
538         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
539         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
540 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
541         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
542 #endif
543 #ifdef CONFIG_OF_LIBFDT
544         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
545 #endif
546         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
547         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
548         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
549         U_BOOT_CMD_MKENT(fake, 0, 1, (void *)BOOTM_STATE_OS_FAKE_GO, "", ""),
550         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
551 };
552
553 static int boot_selected_os(int argc, char * const argv[], int state,
554                 bootm_headers_t *images, boot_os_fn *boot_fn)
555 {
556         arch_preboot_os();
557         boot_fn(state, argc, argv, images);
558
559         /* Stand-alone may return when 'autostart' is 'no' */
560         if (images->os.type == IH_TYPE_STANDALONE ||
561             state == BOOTM_STATE_OS_FAKE_GO) /* We expect to return */
562                 return 0;
563         bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
564 #ifdef DEBUG
565         puts("\n## Control returned to monitor - resetting...\n");
566 #endif
567         return BOOTM_ERR_RESET;
568 }
569
570 /**
571  * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
572  *
573  * @return interrupt flag (0 if interrupts were disabled, non-zero if they were
574  *      enabled)
575  */
576 static ulong bootm_disable_interrupts(void)
577 {
578         ulong iflag;
579
580         /*
581          * We have reached the point of no return: we are going to
582          * overwrite all exception vector code, so we cannot easily
583          * recover from any failures any more...
584          */
585         iflag = disable_interrupts();
586 #ifdef CONFIG_NETCONSOLE
587         /* Stop the ethernet stack if NetConsole could have left it up */
588         eth_halt();
589         eth_unregister(eth_get_dev());
590 #endif
591
592 #if defined(CONFIG_CMD_USB)
593         /*
594          * turn off USB to prevent the host controller from writing to the
595          * SDRAM while Linux is booting. This could happen (at least for OHCI
596          * controller), because the HCCA (Host Controller Communication Area)
597          * lies within the SDRAM and the host controller writes continously to
598          * this area (as busmaster!). The HccaFrameNumber is for example
599          * updated every 1 ms within the HCCA structure in SDRAM! For more
600          * details see the OpenHCI specification.
601          */
602         usb_stop();
603 #endif
604         return iflag;
605 }
606
607 /**
608  * Execute selected states of the bootm command.
609  *
610  * Note the arguments to this state must be the first argument, Any 'bootm'
611  * or sub-command arguments must have already been taken.
612  *
613  * Note that if states contains more than one flag it MUST contain
614  * BOOTM_STATE_START, since this handles and consumes the command line args.
615  *
616  * Also note that aside from boot_os_fn functions and bootm_load_os no other
617  * functions we store the return value of in 'ret' may use a negative return
618  * value, without special handling.
619  *
620  * @param cmdtp         Pointer to bootm command table entry
621  * @param flag          Command flags (CMD_FLAG_...)
622  * @param argc          Number of subcommand arguments (0 = no arguments)
623  * @param argv          Arguments
624  * @param states        Mask containing states to run (BOOTM_STATE_...)
625  * @param images        Image header information
626  * @param boot_progress 1 to show boot progress, 0 to not do this
627  * @return 0 if ok, something else on error. Some errors will cause this
628  *      function to perform a reboot! If states contains BOOTM_STATE_OS_GO
629  *      then the intent is to boot an OS, so this function will not return
630  *      unless the image type is standalone.
631  */
632 static int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc,
633                 char * const argv[], int states, bootm_headers_t *images,
634                 int boot_progress)
635 {
636         boot_os_fn *boot_fn;
637         ulong iflag = 0;
638         int ret = 0, need_boot_fn;
639
640         images->state |= states;
641
642         /*
643          * Work through the states and see how far we get. We stop on
644          * any error.
645          */
646         if (states & BOOTM_STATE_START)
647                 ret = bootm_start(cmdtp, flag, argc, argv);
648
649         if (!ret && (states & BOOTM_STATE_FINDOS))
650                 ret = bootm_find_os(cmdtp, flag, argc, argv);
651
652         if (!ret && (states & BOOTM_STATE_FINDOTHER)) {
653                 ret = bootm_find_other(cmdtp, flag, argc, argv);
654                 argc = 0;       /* consume the args */
655         }
656
657         /* Load the OS */
658         if (!ret && (states & BOOTM_STATE_LOADOS)) {
659                 ulong load_end;
660
661                 iflag = bootm_disable_interrupts();
662                 ret = bootm_load_os(images, &load_end, 0);
663                 if (ret == 0)
664                         lmb_reserve(&images->lmb, images->os.load,
665                                     (load_end - images->os.load));
666                 else if (ret && ret != BOOTM_ERR_OVERLAP)
667                         goto err;
668                 else if (ret == BOOTM_ERR_OVERLAP)
669                         ret = 0;
670 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
671                 if (images->os.os == IH_OS_LINUX)
672                         fixup_silent_linux();
673 #endif
674         }
675
676         /* Relocate the ramdisk */
677 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
678         if (!ret && (states & BOOTM_STATE_RAMDISK)) {
679                 ulong rd_len = images->rd_end - images->rd_start;
680
681                 ret = boot_ramdisk_high(&images->lmb, images->rd_start,
682                         rd_len, &images->initrd_start, &images->initrd_end);
683                 if (!ret) {
684                         setenv_hex("initrd_start", images->initrd_start);
685                         setenv_hex("initrd_end", images->initrd_end);
686                 }
687         }
688 #endif
689 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
690         if (!ret && (states & BOOTM_STATE_FDT)) {
691                 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
692                 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
693                                         &images->ft_len);
694         }
695 #endif
696
697         /* From now on, we need the OS boot function */
698         if (ret)
699                 return ret;
700         boot_fn = boot_os[images->os.os];
701         need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
702                         BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
703                         BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
704         if (boot_fn == NULL && need_boot_fn) {
705                 if (iflag)
706                         enable_interrupts();
707                 printf("ERROR: booting os '%s' (%d) is not supported\n",
708                        genimg_get_os_name(images->os.os), images->os.os);
709                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
710                 return 1;
711         }
712
713         /* Call various other states that are not generally used */
714         if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
715                 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images);
716         if (!ret && (states & BOOTM_STATE_OS_BD_T))
717                 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images);
718         if (!ret && (states & BOOTM_STATE_OS_PREP))
719                 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images);
720
721 #ifdef CONFIG_TRACE
722         /* Pretend to run the OS, then run a user command */
723         if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
724                 char *cmd_list = getenv("fakegocmd");
725
726                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO,
727                                 images, boot_fn);
728                 if (!ret && cmd_list)
729                         ret = run_command_list(cmd_list, -1, flag);
730         }
731 #endif
732
733         /* Check for unsupported subcommand. */
734         if (ret) {
735                 puts("subcommand not supported\n");
736                 return ret;
737         }
738
739         /* Now run the OS! We hope this doesn't return */
740         if (!ret && (states & BOOTM_STATE_OS_GO))
741                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO,
742                                 images, boot_fn);
743
744         /* Deal with any fallout */
745 err:
746         if (iflag)
747                 enable_interrupts();
748
749         if (ret == BOOTM_ERR_UNIMPLEMENTED)
750                 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
751         else if (ret == BOOTM_ERR_RESET)
752                 do_reset(cmdtp, flag, argc, argv);
753
754         return ret;
755 }
756
757 static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
758                         char * const argv[])
759 {
760         int ret = 0;
761         long state;
762         cmd_tbl_t *c;
763
764         c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
765         argc--; argv++;
766
767         if (c) {
768                 state = (long)c->cmd;
769                 if (state == BOOTM_STATE_START)
770                         state |= BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER;
771         } else {
772                 /* Unrecognized command */
773                 return CMD_RET_USAGE;
774         }
775
776         if (state != BOOTM_STATE_START && images.state >= state) {
777                 printf("Trying to execute a command out of order\n");
778                 return CMD_RET_USAGE;
779         }
780
781         ret = do_bootm_states(cmdtp, flag, argc, argv, state, &images, 0);
782
783         return ret;
784 }
785
786 /*******************************************************************/
787 /* bootm - boot application image from image in memory */
788 /*******************************************************************/
789
790 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
791 {
792 #ifdef CONFIG_NEEDS_MANUAL_RELOC
793         static int relocated = 0;
794
795         if (!relocated) {
796                 int i;
797
798                 /* relocate boot function table */
799                 for (i = 0; i < ARRAY_SIZE(boot_os); i++)
800                         if (boot_os[i] != NULL)
801                                 boot_os[i] += gd->reloc_off;
802
803                 /* relocate names of sub-command table */
804                 for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
805                         cmd_bootm_sub[i].name += gd->reloc_off;
806
807                 relocated = 1;
808         }
809 #endif
810
811         /* determine if we have a sub command */
812         argc--; argv++;
813         if (argc > 0) {
814                 char *endp;
815
816                 simple_strtoul(argv[0], &endp, 16);
817                 /* endp pointing to NULL means that argv[0] was just a
818                  * valid number, pass it along to the normal bootm processing
819                  *
820                  * If endp is ':' or '#' assume a FIT identifier so pass
821                  * along for normal processing.
822                  *
823                  * Right now we assume the first arg should never be '-'
824                  */
825                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
826                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
827         }
828
829         return do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START |
830                 BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER |
831                 BOOTM_STATE_LOADOS |
832 #if defined(CONFIG_PPC) || defined(CONFIG_MIPS)
833                 BOOTM_STATE_OS_CMDLINE |
834 #endif
835                 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
836                 BOOTM_STATE_OS_GO, &images, 1);
837 }
838
839 int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
840 {
841         const char *ep = getenv("autostart");
842
843         if (ep && !strcmp(ep, "yes")) {
844                 char *local_args[2];
845                 local_args[0] = (char *)cmd;
846                 local_args[1] = NULL;
847                 printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
848                 return do_bootm(cmdtp, 0, 1, local_args);
849         }
850
851         return 0;
852 }
853
854 /**
855  * image_get_kernel - verify legacy format kernel image
856  * @img_addr: in RAM address of the legacy format image to be verified
857  * @verify: data CRC verification flag
858  *
859  * image_get_kernel() verifies legacy image integrity and returns pointer to
860  * legacy image header if image verification was completed successfully.
861  *
862  * returns:
863  *     pointer to a legacy image header if valid image was found
864  *     otherwise return NULL
865  */
866 static image_header_t *image_get_kernel(ulong img_addr, int verify)
867 {
868         image_header_t *hdr = (image_header_t *)img_addr;
869
870         if (!image_check_magic(hdr)) {
871                 puts("Bad Magic Number\n");
872                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
873                 return NULL;
874         }
875         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
876
877         if (!image_check_hcrc(hdr)) {
878                 puts("Bad Header Checksum\n");
879                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
880                 return NULL;
881         }
882
883         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
884         image_print_contents(hdr);
885
886         if (verify) {
887                 puts("   Verifying Checksum ... ");
888                 if (!image_check_dcrc(hdr)) {
889                         printf("Bad Data CRC\n");
890                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
891                         return NULL;
892                 }
893                 puts("OK\n");
894         }
895         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
896
897         if (!image_check_target_arch(hdr)) {
898                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
899                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
900                 return NULL;
901         }
902         return hdr;
903 }
904
905 /**
906  * boot_get_kernel - find kernel image
907  * @os_data: pointer to a ulong variable, will hold os data start address
908  * @os_len: pointer to a ulong variable, will hold os data length
909  *
910  * boot_get_kernel() tries to find a kernel image, verifies its integrity
911  * and locates kernel data.
912  *
913  * returns:
914  *     pointer to image header if valid image was found, plus kernel start
915  *     address and length, otherwise NULL
916  */
917 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
918                 char * const argv[], bootm_headers_t *images, ulong *os_data,
919                 ulong *os_len)
920 {
921         image_header_t  *hdr;
922         ulong           img_addr;
923         const void *buf;
924 #if defined(CONFIG_FIT)
925         const char      *fit_uname_config = NULL;
926         const char      *fit_uname_kernel = NULL;
927         int             os_noffset;
928 #endif
929
930         /* find out kernel image address */
931         if (argc < 1) {
932                 img_addr = load_addr;
933                 debug("*  kernel: default image load address = 0x%08lx\n",
934                                 load_addr);
935 #if defined(CONFIG_FIT)
936         } else if (fit_parse_conf(argv[0], load_addr, &img_addr,
937                                                         &fit_uname_config)) {
938                 debug("*  kernel: config '%s' from image at 0x%08lx\n",
939                                 fit_uname_config, img_addr);
940         } else if (fit_parse_subimage(argv[0], load_addr, &img_addr,
941                                                         &fit_uname_kernel)) {
942                 debug("*  kernel: subimage '%s' from image at 0x%08lx\n",
943                                 fit_uname_kernel, img_addr);
944 #endif
945         } else {
946                 img_addr = simple_strtoul(argv[0], NULL, 16);
947                 debug("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
948         }
949
950         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
951
952         /* copy from dataflash if needed */
953         img_addr = genimg_get_image(img_addr);
954
955         /* check image type, for FIT images get FIT kernel node */
956         *os_data = *os_len = 0;
957         buf = map_sysmem(img_addr, 0);
958         switch (genimg_get_format(buf)) {
959         case IMAGE_FORMAT_LEGACY:
960                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
961                                 img_addr);
962                 hdr = image_get_kernel(img_addr, images->verify);
963                 if (!hdr)
964                         return NULL;
965                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
966
967                 /* get os_data and os_len */
968                 switch (image_get_type(hdr)) {
969                 case IH_TYPE_KERNEL:
970                 case IH_TYPE_KERNEL_NOLOAD:
971                         *os_data = image_get_data(hdr);
972                         *os_len = image_get_data_size(hdr);
973                         break;
974                 case IH_TYPE_MULTI:
975                         image_multi_getimg(hdr, 0, os_data, os_len);
976                         break;
977                 case IH_TYPE_STANDALONE:
978                         *os_data = image_get_data(hdr);
979                         *os_len = image_get_data_size(hdr);
980                         break;
981                 default:
982                         printf("Wrong Image Type for %s command\n",
983                                 cmdtp->name);
984                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
985                         return NULL;
986                 }
987
988                 /*
989                  * copy image header to allow for image overwrites during
990                  * kernel decompression.
991                  */
992                 memmove(&images->legacy_hdr_os_copy, hdr,
993                         sizeof(image_header_t));
994
995                 /* save pointer to image header */
996                 images->legacy_hdr_os = hdr;
997
998                 images->legacy_hdr_valid = 1;
999                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
1000                 break;
1001 #if defined(CONFIG_FIT)
1002         case IMAGE_FORMAT_FIT:
1003                 os_noffset = fit_image_load(images, FIT_KERNEL_PROP,
1004                                 img_addr,
1005                                 &fit_uname_kernel, &fit_uname_config,
1006                                 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
1007                                 BOOTSTAGE_ID_FIT_KERNEL_START,
1008                                 FIT_LOAD_IGNORED, os_data, os_len);
1009                 if (os_noffset < 0)
1010                         return NULL;
1011
1012                 images->fit_hdr_os = map_sysmem(img_addr, 0);
1013                 images->fit_uname_os = fit_uname_kernel;
1014                 images->fit_uname_cfg = fit_uname_config;
1015                 images->fit_noffset_os = os_noffset;
1016                 break;
1017 #endif
1018 #ifdef CONFIG_ANDROID_BOOT_IMAGE
1019         case IMAGE_FORMAT_ANDROID:
1020                 printf("## Booting Android Image at 0x%08lx ...\n", img_addr);
1021                 if (android_image_get_kernel((void *)img_addr, images->verify,
1022                                              os_data, os_len))
1023                         return NULL;
1024                 break;
1025 #endif
1026         default:
1027                 printf("Wrong Image Format for %s command\n", cmdtp->name);
1028                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
1029                 return NULL;
1030         }
1031
1032         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
1033                         *os_data, *os_len, *os_len);
1034
1035         return buf;
1036 }
1037
1038 #ifdef CONFIG_SYS_LONGHELP
1039 static char bootm_help_text[] =
1040         "[addr [arg ...]]\n    - boot application image stored in memory\n"
1041         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
1042         "\t'arg' can be the address of an initrd image\n"
1043 #if defined(CONFIG_OF_LIBFDT)
1044         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1045         "\ta third argument is required which is the address of the\n"
1046         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1047         "\tuse a '-' for the second argument. If you do not pass a third\n"
1048         "\ta bd_info struct will be passed instead\n"
1049 #endif
1050 #if defined(CONFIG_FIT)
1051         "\t\nFor the new multi component uImage format (FIT) addresses\n"
1052         "\tmust be extened to include component or configuration unit name:\n"
1053         "\taddr:<subimg_uname> - direct component image specification\n"
1054         "\taddr#<conf_uname>   - configuration specification\n"
1055         "\tUse iminfo command to get the list of existing component\n"
1056         "\timages and configurations.\n"
1057 #endif
1058         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
1059         "must be\n"
1060         "issued in the order below (it's ok to not issue all sub-commands):\n"
1061         "\tstart [addr [arg ...]]\n"
1062         "\tloados  - load OS image\n"
1063 #if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
1064         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
1065 #endif
1066 #if defined(CONFIG_OF_LIBFDT)
1067         "\tfdt     - relocate flat device tree\n"
1068 #endif
1069         "\tcmdline - OS specific command line processing/setup\n"
1070         "\tbdt     - OS specific bd_t processing\n"
1071         "\tprep    - OS specific prep before relocation or go\n"
1072         "\tgo      - start OS";
1073 #endif
1074
1075 U_BOOT_CMD(
1076         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
1077         "boot application image from memory", bootm_help_text
1078 );
1079
1080 /*******************************************************************/
1081 /* bootd - boot default image */
1082 /*******************************************************************/
1083 #if defined(CONFIG_CMD_BOOTD)
1084 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1085 {
1086         int rcode = 0;
1087
1088         if (run_command(getenv("bootcmd"), flag) < 0)
1089                 rcode = 1;
1090         return rcode;
1091 }
1092
1093 U_BOOT_CMD(
1094         boot,   1,      1,      do_bootd,
1095         "boot default, i.e., run 'bootcmd'",
1096         ""
1097 );
1098
1099 /* keep old command name "bootd" for backward compatibility */
1100 U_BOOT_CMD(
1101         bootd, 1,       1,      do_bootd,
1102         "boot default, i.e., run 'bootcmd'",
1103         ""
1104 );
1105
1106 #endif
1107
1108
1109 /*******************************************************************/
1110 /* iminfo - print header info for a requested image */
1111 /*******************************************************************/
1112 #if defined(CONFIG_CMD_IMI)
1113 static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1114 {
1115         int     arg;
1116         ulong   addr;
1117         int     rcode = 0;
1118
1119         if (argc < 2) {
1120                 return image_info(load_addr);
1121         }
1122
1123         for (arg = 1; arg < argc; ++arg) {
1124                 addr = simple_strtoul(argv[arg], NULL, 16);
1125                 if (image_info(addr) != 0)
1126                         rcode = 1;
1127         }
1128         return rcode;
1129 }
1130
1131 static int image_info(ulong addr)
1132 {
1133         void *hdr = (void *)addr;
1134
1135         printf("\n## Checking Image at %08lx ...\n", addr);
1136
1137         switch (genimg_get_format(hdr)) {
1138         case IMAGE_FORMAT_LEGACY:
1139                 puts("   Legacy image found\n");
1140                 if (!image_check_magic(hdr)) {
1141                         puts("   Bad Magic Number\n");
1142                         return 1;
1143                 }
1144
1145                 if (!image_check_hcrc(hdr)) {
1146                         puts("   Bad Header Checksum\n");
1147                         return 1;
1148                 }
1149
1150                 image_print_contents(hdr);
1151
1152                 puts("   Verifying Checksum ... ");
1153                 if (!image_check_dcrc(hdr)) {
1154                         puts("   Bad Data CRC\n");
1155                         return 1;
1156                 }
1157                 puts("OK\n");
1158                 return 0;
1159 #if defined(CONFIG_FIT)
1160         case IMAGE_FORMAT_FIT:
1161                 puts("   FIT image found\n");
1162
1163                 if (!fit_check_format(hdr)) {
1164                         puts("Bad FIT image format!\n");
1165                         return 1;
1166                 }
1167
1168                 fit_print_contents(hdr);
1169
1170                 if (!fit_all_image_verify(hdr)) {
1171                         puts("Bad hash in FIT image!\n");
1172                         return 1;
1173                 }
1174
1175                 return 0;
1176 #endif
1177         default:
1178                 puts("Unknown image format!\n");
1179                 break;
1180         }
1181
1182         return 1;
1183 }
1184
1185 U_BOOT_CMD(
1186         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
1187         "print header information for application image",
1188         "addr [addr ...]\n"
1189         "    - print header information for application image starting at\n"
1190         "      address 'addr' in memory; this includes verification of the\n"
1191         "      image contents (magic number, header and payload checksums)"
1192 );
1193 #endif
1194
1195
1196 /*******************************************************************/
1197 /* imls - list all images found in flash */
1198 /*******************************************************************/
1199 #if defined(CONFIG_CMD_IMLS)
1200 static int do_imls_nor(void)
1201 {
1202         flash_info_t *info;
1203         int i, j;
1204         void *hdr;
1205
1206         for (i = 0, info = &flash_info[0];
1207                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
1208
1209                 if (info->flash_id == FLASH_UNKNOWN)
1210                         goto next_bank;
1211                 for (j = 0; j < info->sector_count; ++j) {
1212
1213                         hdr = (void *)info->start[j];
1214                         if (!hdr)
1215                                 goto next_sector;
1216
1217                         switch (genimg_get_format(hdr)) {
1218                         case IMAGE_FORMAT_LEGACY:
1219                                 if (!image_check_hcrc(hdr))
1220                                         goto next_sector;
1221
1222                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
1223                                 image_print_contents(hdr);
1224
1225                                 puts("   Verifying Checksum ... ");
1226                                 if (!image_check_dcrc(hdr)) {
1227                                         puts("Bad Data CRC\n");
1228                                 } else {
1229                                         puts("OK\n");
1230                                 }
1231                                 break;
1232 #if defined(CONFIG_FIT)
1233                         case IMAGE_FORMAT_FIT:
1234                                 if (!fit_check_format(hdr))
1235                                         goto next_sector;
1236
1237                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
1238                                 fit_print_contents(hdr);
1239                                 break;
1240 #endif
1241                         default:
1242                                 goto next_sector;
1243                         }
1244
1245 next_sector:            ;
1246                 }
1247 next_bank:      ;
1248         }
1249         return 0;
1250 }
1251 #endif
1252
1253 #if defined(CONFIG_CMD_IMLS_NAND)
1254 static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
1255                 size_t len)
1256 {
1257         void *imgdata;
1258         int ret;
1259
1260         imgdata = malloc(len);
1261         if (!imgdata) {
1262                 printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
1263                                 nand_dev, off);
1264                 printf("   Low memory(cannot allocate memory for image)\n");
1265                 return -ENOMEM;
1266         }
1267
1268         ret = nand_read_skip_bad(nand, off, &len,
1269                         imgdata);
1270         if (ret < 0 && ret != -EUCLEAN) {
1271                 free(imgdata);
1272                 return ret;
1273         }
1274
1275         if (!image_check_hcrc(imgdata)) {
1276                 free(imgdata);
1277                 return 0;
1278         }
1279
1280         printf("Legacy Image at NAND device %d offset %08llX:\n",
1281                         nand_dev, off);
1282         image_print_contents(imgdata);
1283
1284         puts("   Verifying Checksum ... ");
1285         if (!image_check_dcrc(imgdata))
1286                 puts("Bad Data CRC\n");
1287         else
1288                 puts("OK\n");
1289
1290         free(imgdata);
1291
1292         return 0;
1293 }
1294
1295 static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
1296                 size_t len)
1297 {
1298         void *imgdata;
1299         int ret;
1300
1301         imgdata = malloc(len);
1302         if (!imgdata) {
1303                 printf("May be a FIT Image at NAND device %d offset %08llX:\n",
1304                                 nand_dev, off);
1305                 printf("   Low memory(cannot allocate memory for image)\n");
1306                 return -ENOMEM;
1307         }
1308
1309         ret = nand_read_skip_bad(nand, off, &len,
1310                         imgdata);
1311         if (ret < 0 && ret != -EUCLEAN) {
1312                 free(imgdata);
1313                 return ret;
1314         }
1315
1316         if (!fit_check_format(imgdata)) {
1317                 free(imgdata);
1318                 return 0;
1319         }
1320
1321         printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
1322
1323         fit_print_contents(imgdata);
1324         free(imgdata);
1325
1326         return 0;
1327 }
1328
1329 static int do_imls_nand(void)
1330 {
1331         nand_info_t *nand;
1332         int nand_dev = nand_curr_device;
1333         size_t len;
1334         loff_t off;
1335         u32 buffer[16];
1336
1337         if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
1338                 puts("\nNo NAND devices available\n");
1339                 return -ENODEV;
1340         }
1341
1342         printf("\n");
1343
1344         for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
1345                 nand = &nand_info[nand_dev];
1346                 if (!nand->name || !nand->size)
1347                         continue;
1348
1349                 for (off = 0; off < nand->size; off += nand->erasesize) {
1350                         const image_header_t *header;
1351                         int ret;
1352
1353                         if (nand_block_isbad(nand, off))
1354                                 continue;
1355
1356                         len = sizeof(buffer);
1357
1358                         ret = nand_read(nand, off, &len, (u8 *)buffer);
1359                         if (ret < 0 && ret != -EUCLEAN) {
1360                                 printf("NAND read error %d at offset %08llX\n",
1361                                                 ret, off);
1362                                 continue;
1363                         }
1364
1365                         switch (genimg_get_format(buffer)) {
1366                         case IMAGE_FORMAT_LEGACY:
1367                                 header = (const image_header_t *)buffer;
1368
1369                                 len = image_get_image_size(header);
1370                                 nand_imls_legacyimage(nand, nand_dev, off, len);
1371                                 break;
1372 #if defined(CONFIG_FIT)
1373                         case IMAGE_FORMAT_FIT:
1374                                 len = fit_get_size(buffer);
1375                                 nand_imls_fitimage(nand, nand_dev, off, len);
1376                                 break;
1377 #endif
1378                         }
1379                 }
1380         }
1381
1382         return 0;
1383 }
1384 #endif
1385
1386 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
1387 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1388 {
1389         int ret_nor = 0, ret_nand = 0;
1390
1391 #if defined(CONFIG_CMD_IMLS)
1392         ret_nor = do_imls_nor();
1393 #endif
1394
1395 #if defined(CONFIG_CMD_IMLS_NAND)
1396         ret_nand = do_imls_nand();
1397 #endif
1398
1399         if (ret_nor)
1400                 return ret_nor;
1401
1402         if (ret_nand)
1403                 return ret_nand;
1404
1405         return (0);
1406 }
1407
1408 U_BOOT_CMD(
1409         imls,   1,              1,      do_imls,
1410         "list all images found in flash",
1411         "\n"
1412         "    - Prints information about all images found at sector/block\n"
1413         "      boundaries in nor/nand flash."
1414 );
1415 #endif
1416
1417 /*******************************************************************/
1418 /* helper routines */
1419 /*******************************************************************/
1420 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
1421
1422 #define CONSOLE_ARG     "console="
1423 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
1424
1425 static void fixup_silent_linux(void)
1426 {
1427         char *buf;
1428         const char *env_val;
1429         char *cmdline = getenv("bootargs");
1430         int want_silent;
1431
1432         /*
1433          * Only fix cmdline when requested. The environment variable can be:
1434          *
1435          *      no - we never fixup
1436          *      yes - we always fixup
1437          *      unset - we rely on the console silent flag
1438          */
1439         want_silent = getenv_yesno("silent_linux");
1440         if (want_silent == 0)
1441                 return;
1442         else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
1443                 return;
1444
1445         debug("before silent fix-up: %s\n", cmdline);
1446         if (cmdline && (cmdline[0] != '\0')) {
1447                 char *start = strstr(cmdline, CONSOLE_ARG);
1448
1449                 /* Allocate space for maximum possible new command line */
1450                 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
1451                 if (!buf) {
1452                         debug("%s: out of memory\n", __func__);
1453                         return;
1454                 }
1455
1456                 if (start) {
1457                         char *end = strchr(start, ' ');
1458                         int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
1459
1460                         strncpy(buf, cmdline, num_start_bytes);
1461                         if (end)
1462                                 strcpy(buf + num_start_bytes, end);
1463                         else
1464                                 buf[num_start_bytes] = '\0';
1465                 } else {
1466                         sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
1467                 }
1468                 env_val = buf;
1469         } else {
1470                 buf = NULL;
1471                 env_val = CONSOLE_ARG;
1472         }
1473
1474         setenv("bootargs", env_val);
1475         debug("after silent fix-up: %s\n", env_val);
1476         free(buf);
1477 }
1478 #endif /* CONFIG_SILENT_CONSOLE */
1479
1480 #if defined(CONFIG_BOOTM_NETBSD) || defined(CONFIG_BOOTM_PLAN9)
1481 static void copy_args(char *dest, int argc, char * const argv[], char delim)
1482 {
1483         int i;
1484
1485         for (i = 0; i < argc; i++) {
1486                 if (i > 0)
1487                         *dest++ = delim;
1488                 strcpy(dest, argv[i]);
1489                 dest += strlen(argv[i]);
1490         }
1491 }
1492 #endif
1493
1494 /*******************************************************************/
1495 /* OS booting routines */
1496 /*******************************************************************/
1497
1498 #ifdef CONFIG_BOOTM_NETBSD
1499 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1500                             bootm_headers_t *images)
1501 {
1502         void (*loader)(bd_t *, image_header_t *, char *, char *);
1503         image_header_t *os_hdr, *hdr;
1504         ulong kernel_data, kernel_len;
1505         char *consdev;
1506         char *cmdline;
1507
1508         if (flag != BOOTM_STATE_OS_GO)
1509                 return 0;
1510
1511 #if defined(CONFIG_FIT)
1512         if (!images->legacy_hdr_valid) {
1513                 fit_unsupported_reset("NetBSD");
1514                 return 1;
1515         }
1516 #endif
1517         hdr = images->legacy_hdr_os;
1518
1519         /*
1520          * Booting a (NetBSD) kernel image
1521          *
1522          * This process is pretty similar to a standalone application:
1523          * The (first part of an multi-) image must be a stage-2 loader,
1524          * which in turn is responsible for loading & invoking the actual
1525          * kernel.  The only differences are the parameters being passed:
1526          * besides the board info strucure, the loader expects a command
1527          * line, the name of the console device, and (optionally) the
1528          * address of the original image header.
1529          */
1530         os_hdr = NULL;
1531         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1532                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1533                 if (kernel_len)
1534                         os_hdr = hdr;
1535         }
1536
1537         consdev = "";
1538 #if   defined(CONFIG_8xx_CONS_SMC1)
1539         consdev = "smc1";
1540 #elif defined(CONFIG_8xx_CONS_SMC2)
1541         consdev = "smc2";
1542 #elif defined(CONFIG_8xx_CONS_SCC2)
1543         consdev = "scc2";
1544 #elif defined(CONFIG_8xx_CONS_SCC3)
1545         consdev = "scc3";
1546 #endif
1547
1548         if (argc > 0) {
1549                 ulong len;
1550                 int   i;
1551
1552                 for (i = 0, len = 0; i < argc; i += 1)
1553                         len += strlen(argv[i]) + 1;
1554                 cmdline = malloc(len);
1555                 copy_args(cmdline, argc, argv, ' ');
1556         } else if ((cmdline = getenv("bootargs")) == NULL) {
1557                 cmdline = "";
1558         }
1559
1560         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1561
1562         printf("## Transferring control to NetBSD stage-2 loader "
1563                 "(at address %08lx) ...\n",
1564                 (ulong)loader);
1565
1566         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1567
1568         /*
1569          * NetBSD Stage-2 Loader Parameters:
1570          *   arg[0]: pointer to board info data
1571          *   arg[1]: image load address
1572          *   arg[2]: char pointer to the console device to use
1573          *   arg[3]: char pointer to the boot arguments
1574          */
1575         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1576
1577         return 1;
1578 }
1579 #endif /* CONFIG_BOOTM_NETBSD*/
1580
1581 #ifdef CONFIG_LYNXKDI
1582 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1583                              bootm_headers_t *images)
1584 {
1585         image_header_t *hdr = &images->legacy_hdr_os_copy;
1586
1587         if (flag != BOOTM_STATE_OS_GO)
1588                 return 0;
1589
1590 #if defined(CONFIG_FIT)
1591         if (!images->legacy_hdr_valid) {
1592                 fit_unsupported_reset("Lynx");
1593                 return 1;
1594         }
1595 #endif
1596
1597         lynxkdi_boot((image_header_t *)hdr);
1598
1599         return 1;
1600 }
1601 #endif /* CONFIG_LYNXKDI */
1602
1603 #ifdef CONFIG_BOOTM_RTEMS
1604 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1605                            bootm_headers_t *images)
1606 {
1607         void (*entry_point)(bd_t *);
1608
1609         if (flag != BOOTM_STATE_OS_GO)
1610                 return 0;
1611
1612 #if defined(CONFIG_FIT)
1613         if (!images->legacy_hdr_valid) {
1614                 fit_unsupported_reset("RTEMS");
1615                 return 1;
1616         }
1617 #endif
1618
1619         entry_point = (void (*)(bd_t *))images->ep;
1620
1621         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1622                 (ulong)entry_point);
1623
1624         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1625
1626         /*
1627          * RTEMS Parameters:
1628          *   r3: ptr to board info data
1629          */
1630         (*entry_point)(gd->bd);
1631
1632         return 1;
1633 }
1634 #endif /* CONFIG_BOOTM_RTEMS */
1635
1636 #if defined(CONFIG_BOOTM_OSE)
1637 static int do_bootm_ose(int flag, int argc, char * const argv[],
1638                            bootm_headers_t *images)
1639 {
1640         void (*entry_point)(void);
1641
1642         if (flag != BOOTM_STATE_OS_GO)
1643                 return 0;
1644
1645 #if defined(CONFIG_FIT)
1646         if (!images->legacy_hdr_valid) {
1647                 fit_unsupported_reset("OSE");
1648                 return 1;
1649         }
1650 #endif
1651
1652         entry_point = (void (*)(void))images->ep;
1653
1654         printf("## Transferring control to OSE (at address %08lx) ...\n",
1655                 (ulong)entry_point);
1656
1657         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1658
1659         /*
1660          * OSE Parameters:
1661          *   None
1662          */
1663         (*entry_point)();
1664
1665         return 1;
1666 }
1667 #endif /* CONFIG_BOOTM_OSE */
1668
1669 #if defined(CONFIG_BOOTM_PLAN9)
1670 static int do_bootm_plan9(int flag, int argc, char * const argv[],
1671                            bootm_headers_t *images)
1672 {
1673         void (*entry_point)(void);
1674         char *s;
1675
1676         if (flag != BOOTM_STATE_OS_GO)
1677                 return 0;
1678
1679 #if defined(CONFIG_FIT)
1680         if (!images->legacy_hdr_valid) {
1681                 fit_unsupported_reset("Plan 9");
1682                 return 1;
1683         }
1684 #endif
1685
1686         /* See README.plan9 */
1687         s = getenv("confaddr");
1688         if (s != NULL) {
1689                 char *confaddr = (char *)simple_strtoul(s, NULL, 16);
1690
1691                 if (argc > 0) {
1692                         copy_args(confaddr, argc, argv, '\n');
1693                 } else {
1694                         s = getenv("bootargs");
1695                         if (s != NULL)
1696                                 strcpy(confaddr, s);
1697                 }
1698         }
1699
1700         entry_point = (void (*)(void))images->ep;
1701
1702         printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
1703                 (ulong)entry_point);
1704
1705         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1706
1707         /*
1708          * Plan 9 Parameters:
1709          *   None
1710          */
1711         (*entry_point)();
1712
1713         return 1;
1714 }
1715 #endif /* CONFIG_BOOTM_PLAN9 */
1716
1717 #if defined(CONFIG_BOOTM_VXWORKS) && \
1718         (defined(CONFIG_PPC) || defined(CONFIG_ARM))
1719
1720 void do_bootvx_fdt(bootm_headers_t *images)
1721 {
1722 #if defined(CONFIG_OF_LIBFDT)
1723         int ret;
1724         char *bootline;
1725         ulong of_size = images->ft_len;
1726         char **of_flat_tree = &images->ft_addr;
1727         struct lmb *lmb = &images->lmb;
1728
1729         if (*of_flat_tree) {
1730                 boot_fdt_add_mem_rsv_regions(lmb, *of_flat_tree);
1731
1732                 ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size);
1733                 if (ret)
1734                         return;
1735
1736                 ret = fdt_add_subnode(*of_flat_tree, 0, "chosen");
1737                 if ((ret >= 0 || ret == -FDT_ERR_EXISTS)) {
1738                         bootline = getenv("bootargs");
1739                         if (bootline) {
1740                                 ret = fdt_find_and_setprop(*of_flat_tree,
1741                                                 "/chosen", "bootargs",
1742                                                 bootline,
1743                                                 strlen(bootline) + 1, 1);
1744                                 if (ret < 0) {
1745                                         printf("## ERROR: %s : %s\n", __func__,
1746                                                fdt_strerror(ret));
1747                                         return;
1748                                 }
1749                         }
1750                 } else {
1751                         printf("## ERROR: %s : %s\n", __func__,
1752                                fdt_strerror(ret));
1753                         return;
1754                 }
1755         }
1756 #endif
1757
1758         boot_prep_vxworks(images);
1759
1760         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1761
1762 #if defined(CONFIG_OF_LIBFDT)
1763         printf("## Starting vxWorks at 0x%08lx, device tree at 0x%08lx ...\n",
1764                (ulong)images->ep, (ulong)*of_flat_tree);
1765 #else
1766         printf("## Starting vxWorks at 0x%08lx\n", (ulong)images->ep);
1767 #endif
1768
1769         boot_jump_vxworks(images);
1770
1771         puts("## vxWorks terminated\n");
1772 }
1773
1774 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1775                              bootm_headers_t *images)
1776 {
1777         if (flag != BOOTM_STATE_OS_GO)
1778                 return 0;
1779
1780 #if defined(CONFIG_FIT)
1781         if (!images->legacy_hdr_valid) {
1782                 fit_unsupported_reset("VxWorks");
1783                 return 1;
1784         }
1785 #endif
1786
1787         do_bootvx_fdt(images);
1788
1789         return 1;
1790 }
1791 #endif
1792
1793 #if defined(CONFIG_CMD_ELF)
1794 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1795                             bootm_headers_t *images)
1796 {
1797         char *local_args[2];
1798         char str[16];
1799
1800         if (flag != BOOTM_STATE_OS_GO)
1801                 return 0;
1802
1803 #if defined(CONFIG_FIT)
1804         if (!images->legacy_hdr_valid) {
1805                 fit_unsupported_reset("QNX");
1806                 return 1;
1807         }
1808 #endif
1809
1810         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1811         local_args[0] = argv[0];
1812         local_args[1] = str;    /* and provide it via the arguments */
1813         do_bootelf(NULL, 0, 2, local_args);
1814
1815         return 1;
1816 }
1817 #endif
1818
1819 #ifdef CONFIG_INTEGRITY
1820 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1821                            bootm_headers_t *images)
1822 {
1823         void (*entry_point)(void);
1824
1825         if (flag != BOOTM_STATE_OS_GO)
1826                 return 0;
1827
1828 #if defined(CONFIG_FIT)
1829         if (!images->legacy_hdr_valid) {
1830                 fit_unsupported_reset("INTEGRITY");
1831                 return 1;
1832         }
1833 #endif
1834
1835         entry_point = (void (*)(void))images->ep;
1836
1837         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1838                 (ulong)entry_point);
1839
1840         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1841
1842         /*
1843          * INTEGRITY Parameters:
1844          *   None
1845          */
1846         (*entry_point)();
1847
1848         return 1;
1849 }
1850 #endif
1851
1852 #ifdef CONFIG_CMD_BOOTZ
1853
1854 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
1855 {
1856         /* Please define bootz_setup() for your platform */
1857
1858         puts("Your platform's zImage format isn't supported yet!\n");
1859         return -1;
1860 }
1861
1862 /*
1863  * zImage booting support
1864  */
1865 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
1866                         char * const argv[], bootm_headers_t *images)
1867 {
1868         int ret;
1869         ulong zi_start, zi_end;
1870
1871         ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
1872                               images, 1);
1873
1874         /* Setup Linux kernel zImage entry point */
1875         if (!argc) {
1876                 images->ep = load_addr;
1877                 debug("*  kernel: default image load address = 0x%08lx\n",
1878                                 load_addr);
1879         } else {
1880                 images->ep = simple_strtoul(argv[0], NULL, 16);
1881                 debug("*  kernel: cmdline image address = 0x%08lx\n",
1882                         images->ep);
1883         }
1884
1885         ret = bootz_setup(images->ep, &zi_start, &zi_end);
1886         if (ret != 0)
1887                 return 1;
1888
1889         lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
1890
1891         /*
1892          * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
1893          * have a header that provide this informaiton.
1894          */
1895         if (bootm_find_ramdisk(flag, argc, argv))
1896                 return 1;
1897
1898 #if defined(CONFIG_OF_LIBFDT)
1899         if (bootm_find_fdt(flag, argc, argv))
1900                 return 1;
1901 #endif
1902
1903         return 0;
1904 }
1905
1906 int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1907 {
1908         int ret;
1909
1910         /* Consume 'bootz' */
1911         argc--; argv++;
1912
1913         if (bootz_start(cmdtp, flag, argc, argv, &images))
1914                 return 1;
1915
1916         /*
1917          * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
1918          * disable interrupts ourselves
1919          */
1920         bootm_disable_interrupts();
1921
1922         images.os.os = IH_OS_LINUX;
1923         ret = do_bootm_states(cmdtp, flag, argc, argv,
1924                               BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
1925                               BOOTM_STATE_OS_GO,
1926                               &images, 1);
1927
1928         return ret;
1929 }
1930
1931 #ifdef CONFIG_SYS_LONGHELP
1932 static char bootz_help_text[] =
1933         "[addr [initrd[:size]] [fdt]]\n"
1934         "    - boot Linux zImage stored in memory\n"
1935         "\tThe argument 'initrd' is optional and specifies the address\n"
1936         "\tof the initrd in memory. The optional argument ':size' allows\n"
1937         "\tspecifying the size of RAW initrd.\n"
1938 #if defined(CONFIG_OF_LIBFDT)
1939         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1940         "\ta third argument is required which is the address of the\n"
1941         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1942         "\tuse a '-' for the second argument. If you do not pass a third\n"
1943         "\ta bd_info struct will be passed instead\n"
1944 #endif
1945         "";
1946 #endif
1947
1948 U_BOOT_CMD(
1949         bootz,  CONFIG_SYS_MAXARGS,     1,      do_bootz,
1950         "boot Linux zImage image from memory", bootz_help_text
1951 );
1952 #endif  /* CONFIG_CMD_BOOTZ */