Clarify bootm OS arguments
[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  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23
24
25 /*
26  * Boot support
27  */
28 #include <common.h>
29 #include <watchdog.h>
30 #include <command.h>
31 #include <image.h>
32 #include <malloc.h>
33 #include <u-boot/zlib.h>
34 #include <bzlib.h>
35 #include <environment.h>
36 #include <lmb.h>
37 #include <linux/ctype.h>
38 #include <asm/byteorder.h>
39 #include <asm/io.h>
40 #include <linux/compiler.h>
41
42 #if defined(CONFIG_CMD_USB)
43 #include <usb.h>
44 #endif
45
46 #ifdef CONFIG_SYS_HUSH_PARSER
47 #include <hush.h>
48 #endif
49
50 #if defined(CONFIG_OF_LIBFDT)
51 #include <libfdt.h>
52 #include <fdt_support.h>
53 #endif
54
55 #ifdef CONFIG_LZMA
56 #include <lzma/LzmaTypes.h>
57 #include <lzma/LzmaDec.h>
58 #include <lzma/LzmaTools.h>
59 #endif /* CONFIG_LZMA */
60
61 #ifdef CONFIG_LZO
62 #include <linux/lzo.h>
63 #endif /* CONFIG_LZO */
64
65 DECLARE_GLOBAL_DATA_PTR;
66
67 #ifndef CONFIG_SYS_BOOTM_LEN
68 #define CONFIG_SYS_BOOTM_LEN    0x800000        /* use 8MByte as default max gunzip size */
69 #endif
70
71 #ifdef CONFIG_BZIP2
72 extern void bz_internal_error(int);
73 #endif
74
75 #if defined(CONFIG_CMD_IMI)
76 static int image_info(unsigned long addr);
77 #endif
78
79 #if defined(CONFIG_CMD_IMLS)
80 #include <flash.h>
81 #include <mtd/cfi_flash.h>
82 extern flash_info_t flash_info[]; /* info for FLASH chips */
83 #endif
84
85 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
86 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
87 #endif
88
89 #include <linux/err.h>
90 #include <nand.h>
91
92 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
93 static void fixup_silent_linux(void);
94 #endif
95
96 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
97                                 char * const argv[], bootm_headers_t *images,
98                                 ulong *os_data, ulong *os_len);
99
100 /*
101  *  Continue booting an OS image; caller already has:
102  *  - copied image header to global variable `header'
103  *  - checked header magic number, checksums (both header & image),
104  *  - verified image architecture (PPC) and type (KERNEL or MULTI),
105  *  - loaded (first part of) image to header load address,
106  *  - disabled interrupts.
107  *
108  * @flag: Command flags (CMD_FLAG_...)
109  * @argc: Number of arguments. Note that the arguments are shifted down
110  *       so that 0 is the first argument not processed by U-Boot, and
111  *       argc is adjusted accordingly. This avoids confusion as to how
112  *       many arguments are available for the OS.
113  * @images: Pointers to os/initrd/fdt
114  * @return 1 on error. On success the OS boots so this function does
115  * not return.
116  */
117 typedef int boot_os_fn(int flag, int argc, char * const argv[],
118                         bootm_headers_t *images);
119
120 #ifdef CONFIG_BOOTM_LINUX
121 extern boot_os_fn do_bootm_linux;
122 #endif
123 #ifdef CONFIG_BOOTM_NETBSD
124 static boot_os_fn do_bootm_netbsd;
125 #endif
126 #if defined(CONFIG_LYNXKDI)
127 static boot_os_fn do_bootm_lynxkdi;
128 extern void lynxkdi_boot(image_header_t *);
129 #endif
130 #ifdef CONFIG_BOOTM_RTEMS
131 static boot_os_fn do_bootm_rtems;
132 #endif
133 #if defined(CONFIG_BOOTM_OSE)
134 static boot_os_fn do_bootm_ose;
135 #endif
136 #if defined(CONFIG_BOOTM_PLAN9)
137 static boot_os_fn do_bootm_plan9;
138 #endif
139 #if defined(CONFIG_CMD_ELF)
140 static boot_os_fn do_bootm_vxworks;
141 static boot_os_fn do_bootm_qnxelf;
142 int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
143 int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
144 #endif
145 #if defined(CONFIG_INTEGRITY)
146 static boot_os_fn do_bootm_integrity;
147 #endif
148
149 static boot_os_fn *boot_os[] = {
150 #ifdef CONFIG_BOOTM_LINUX
151         [IH_OS_LINUX] = do_bootm_linux,
152 #endif
153 #ifdef CONFIG_BOOTM_NETBSD
154         [IH_OS_NETBSD] = do_bootm_netbsd,
155 #endif
156 #ifdef CONFIG_LYNXKDI
157         [IH_OS_LYNXOS] = do_bootm_lynxkdi,
158 #endif
159 #ifdef CONFIG_BOOTM_RTEMS
160         [IH_OS_RTEMS] = do_bootm_rtems,
161 #endif
162 #if defined(CONFIG_BOOTM_OSE)
163         [IH_OS_OSE] = do_bootm_ose,
164 #endif
165 #if defined(CONFIG_BOOTM_PLAN9)
166         [IH_OS_PLAN9] = do_bootm_plan9,
167 #endif
168 #if defined(CONFIG_CMD_ELF)
169         [IH_OS_VXWORKS] = do_bootm_vxworks,
170         [IH_OS_QNX] = do_bootm_qnxelf,
171 #endif
172 #ifdef CONFIG_INTEGRITY
173         [IH_OS_INTEGRITY] = do_bootm_integrity,
174 #endif
175 };
176
177 bootm_headers_t images;         /* pointers to os/initrd/fdt images */
178
179 /* Allow for arch specific config before we boot */
180 static void __arch_preboot_os(void)
181 {
182         /* please define platform specific arch_preboot_os() */
183 }
184 void arch_preboot_os(void) __attribute__((weak, alias("__arch_preboot_os")));
185
186 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
187
188 #ifdef CONFIG_LMB
189 static void boot_start_lmb(bootm_headers_t *images)
190 {
191         ulong           mem_start;
192         phys_size_t     mem_size;
193
194         lmb_init(&images->lmb);
195
196         mem_start = getenv_bootm_low();
197         mem_size = getenv_bootm_size();
198
199         lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
200
201         arch_lmb_reserve(&images->lmb);
202         board_lmb_reserve(&images->lmb);
203 }
204 #else
205 #define lmb_reserve(lmb, base, size)
206 static inline void boot_start_lmb(bootm_headers_t *images) { }
207 #endif
208
209 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
210 {
211         const void *os_hdr;
212         int ret;
213
214         memset((void *)&images, 0, sizeof(images));
215         images.verify = getenv_yesno("verify");
216
217         boot_start_lmb(&images);
218
219         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
220
221         /* get kernel image header, start address and length */
222         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
223                         &images, &images.os.image_start, &images.os.image_len);
224         if (images.os.image_len == 0) {
225                 puts("ERROR: can't get kernel image!\n");
226                 return 1;
227         }
228
229         /* get image parameters */
230         switch (genimg_get_format(os_hdr)) {
231         case IMAGE_FORMAT_LEGACY:
232                 images.os.type = image_get_type(os_hdr);
233                 images.os.comp = image_get_comp(os_hdr);
234                 images.os.os = image_get_os(os_hdr);
235
236                 images.os.end = image_get_image_end(os_hdr);
237                 images.os.load = image_get_load(os_hdr);
238                 break;
239 #if defined(CONFIG_FIT)
240         case IMAGE_FORMAT_FIT:
241                 if (fit_image_get_type(images.fit_hdr_os,
242                                         images.fit_noffset_os, &images.os.type)) {
243                         puts("Can't get image type!\n");
244                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
245                         return 1;
246                 }
247
248                 if (fit_image_get_comp(images.fit_hdr_os,
249                                         images.fit_noffset_os, &images.os.comp)) {
250                         puts("Can't get image compression!\n");
251                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
252                         return 1;
253                 }
254
255                 if (fit_image_get_os(images.fit_hdr_os,
256                                         images.fit_noffset_os, &images.os.os)) {
257                         puts("Can't get image OS!\n");
258                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
259                         return 1;
260                 }
261
262                 images.os.end = fit_get_end(images.fit_hdr_os);
263
264                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
265                                         &images.os.load)) {
266                         puts("Can't get image load address!\n");
267                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
268                         return 1;
269                 }
270                 break;
271 #endif
272         default:
273                 puts("ERROR: unknown image format type!\n");
274                 return 1;
275         }
276
277         /* find kernel entry point */
278         if (images.legacy_hdr_valid) {
279                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
280 #if defined(CONFIG_FIT)
281         } else if (images.fit_uname_os) {
282                 ret = fit_image_get_entry(images.fit_hdr_os,
283                                           images.fit_noffset_os, &images.ep);
284                 if (ret) {
285                         puts("Can't get entry point property!\n");
286                         return 1;
287                 }
288 #endif
289         } else {
290                 puts("Could not find kernel entry point!\n");
291                 return 1;
292         }
293
294         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
295                 images.os.load = images.os.image_start;
296                 images.ep += images.os.load;
297         }
298
299         if (((images.os.type == IH_TYPE_KERNEL) ||
300              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
301              (images.os.type == IH_TYPE_MULTI)) &&
302             (images.os.os == IH_OS_LINUX)) {
303                 /* find ramdisk */
304                 ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
305                                 &images.rd_start, &images.rd_end);
306                 if (ret) {
307                         puts("Ramdisk image is corrupt or invalid\n");
308                         return 1;
309                 }
310
311 #if defined(CONFIG_OF_LIBFDT)
312                 /* find flattened device tree */
313                 ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
314                                    &images.ft_addr, &images.ft_len);
315                 if (ret) {
316                         puts("Could not find a valid device tree\n");
317                         return 1;
318                 }
319
320                 set_working_fdt_addr(images.ft_addr);
321 #endif
322         }
323
324         images.os.start = (ulong)os_hdr;
325         images.state = BOOTM_STATE_START;
326
327         return 0;
328 }
329
330 #define BOOTM_ERR_RESET         -1
331 #define BOOTM_ERR_OVERLAP       -2
332 #define BOOTM_ERR_UNIMPLEMENTED -3
333 static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress)
334 {
335         uint8_t comp = os.comp;
336         ulong load = os.load;
337         ulong blob_start = os.start;
338         ulong blob_end = os.end;
339         ulong image_start = os.image_start;
340         ulong image_len = os.image_len;
341         __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
342         int no_overlap = 0;
343         void *load_buf, *image_buf;
344 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
345         int ret;
346 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
347
348         const char *type_name = genimg_get_type_name(os.type);
349
350         load_buf = map_sysmem(load, image_len);
351         image_buf = map_sysmem(image_start, image_len);
352         switch (comp) {
353         case IH_COMP_NONE:
354                 if (load == blob_start || load == image_start) {
355                         printf("   XIP %s ... ", type_name);
356                         no_overlap = 1;
357                 } else {
358                         printf("   Loading %s ... ", type_name);
359                         memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
360                 }
361                 *load_end = load + image_len;
362                 puts("OK\n");
363                 break;
364 #ifdef CONFIG_GZIP
365         case IH_COMP_GZIP:
366                 printf("   Uncompressing %s ... ", type_name);
367                 if (gunzip(load_buf, unc_len, image_buf, &image_len) != 0) {
368                         puts("GUNZIP: uncompress, out-of-mem or overwrite "
369                                 "error - must RESET board to recover\n");
370                         if (boot_progress)
371                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
372                         return BOOTM_ERR_RESET;
373                 }
374
375                 *load_end = load + image_len;
376                 break;
377 #endif /* CONFIG_GZIP */
378 #ifdef CONFIG_BZIP2
379         case IH_COMP_BZIP2:
380                 printf("   Uncompressing %s ... ", type_name);
381                 /*
382                  * If we've got less than 4 MB of malloc() space,
383                  * use slower decompression algorithm which requires
384                  * at most 2300 KB of memory.
385                  */
386                 int i = BZ2_bzBuffToBuffDecompress(load_buf, &unc_len,
387                         image_buf, image_len,
388                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
389                 if (i != BZ_OK) {
390                         printf("BUNZIP2: uncompress or overwrite error %d "
391                                 "- must RESET board to recover\n", i);
392                         if (boot_progress)
393                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
394                         return BOOTM_ERR_RESET;
395                 }
396
397                 *load_end = load + unc_len;
398                 break;
399 #endif /* CONFIG_BZIP2 */
400 #ifdef CONFIG_LZMA
401         case IH_COMP_LZMA: {
402                 SizeT lzma_len = unc_len;
403                 printf("   Uncompressing %s ... ", type_name);
404
405                 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
406                                                image_buf, image_len);
407                 unc_len = lzma_len;
408                 if (ret != SZ_OK) {
409                         printf("LZMA: uncompress or overwrite error %d "
410                                 "- must RESET board to recover\n", ret);
411                         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
412                         return BOOTM_ERR_RESET;
413                 }
414                 *load_end = load + unc_len;
415                 break;
416         }
417 #endif /* CONFIG_LZMA */
418 #ifdef CONFIG_LZO
419         case IH_COMP_LZO:
420                 printf("   Uncompressing %s ... ", type_name);
421
422                 ret = lzop_decompress(image_buf, image_len, load_buf,
423                                       &unc_len);
424                 if (ret != LZO_E_OK) {
425                         printf("LZO: uncompress or overwrite error %d "
426                               "- must RESET board to recover\n", ret);
427                         if (boot_progress)
428                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
429                         return BOOTM_ERR_RESET;
430                 }
431
432                 *load_end = load + unc_len;
433                 break;
434 #endif /* CONFIG_LZO */
435         default:
436                 printf("Unimplemented compression type %d\n", comp);
437                 return BOOTM_ERR_UNIMPLEMENTED;
438         }
439
440         flush_cache(load, (*load_end - load) * sizeof(ulong));
441
442         puts("OK\n");
443         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
444         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
445
446         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
447                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
448                         blob_start, blob_end);
449                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
450                         *load_end);
451
452                 return BOOTM_ERR_OVERLAP;
453         }
454
455         return 0;
456 }
457
458 static int bootm_start_standalone(ulong iflag, int argc, char * const argv[])
459 {
460         char  *s;
461         int   (*appl)(int, char * const []);
462
463         /* Don't start if "autostart" is set to "no" */
464         if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
465                 setenv_hex("filesize", images.os.image_len);
466                 return 0;
467         }
468         appl = (int (*)(int, char * const []))(ulong)ntohl(images.ep);
469         (*appl)(argc, argv);
470         return 0;
471 }
472
473 /* we overload the cmd field with our state machine info instead of a
474  * function pointer */
475 static cmd_tbl_t cmd_bootm_sub[] = {
476         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
477         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
478 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
479         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
480 #endif
481 #ifdef CONFIG_OF_LIBFDT
482         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
483 #endif
484         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
485         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
486         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
487         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
488 };
489
490 static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
491                         char * const argv[])
492 {
493         int ret = 0;
494         long state;
495         cmd_tbl_t *c;
496         boot_os_fn *boot_fn;
497
498         c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
499         argc--; argv++;
500
501         if (c) {
502                 state = (long)c->cmd;
503
504                 /* treat start special since it resets the state machine */
505                 if (state == BOOTM_STATE_START)
506                         return bootm_start(cmdtp, flag, argc, argv);
507         } else {
508                 /* Unrecognized command */
509                 return CMD_RET_USAGE;
510         }
511
512         if (images.state < BOOTM_STATE_START ||
513             images.state >= state) {
514                 printf("Trying to execute a command out of order\n");
515                 return CMD_RET_USAGE;
516         }
517
518         images.state |= state;
519         boot_fn = boot_os[images.os.os];
520
521         switch (state) {
522                 ulong load_end;
523                 case BOOTM_STATE_START:
524                         /* should never occur */
525                         break;
526                 case BOOTM_STATE_LOADOS:
527                         ret = bootm_load_os(images.os, &load_end, 0);
528                         if (ret)
529                                 return ret;
530
531                         lmb_reserve(&images.lmb, images.os.load,
532                                         (load_end - images.os.load));
533                         break;
534 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
535                 case BOOTM_STATE_RAMDISK:
536                 {
537                         ulong rd_len = images.rd_end - images.rd_start;
538
539                         ret = boot_ramdisk_high(&images.lmb, images.rd_start,
540                                 rd_len, &images.initrd_start, &images.initrd_end);
541                         if (ret)
542                                 return ret;
543
544                         setenv_hex("initrd_start", images.initrd_start);
545                         setenv_hex("initrd_end", images.initrd_end);
546                 }
547                         break;
548 #endif
549 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
550                 case BOOTM_STATE_FDT:
551                 {
552                         boot_fdt_add_mem_rsv_regions(&images.lmb,
553                                                      images.ft_addr);
554                         ret = boot_relocate_fdt(&images.lmb,
555                                 &images.ft_addr, &images.ft_len);
556                         break;
557                 }
558 #endif
559                 case BOOTM_STATE_OS_CMDLINE:
560                         ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, &images);
561                         if (ret)
562                                 printf("cmdline subcommand not supported\n");
563                         break;
564                 case BOOTM_STATE_OS_BD_T:
565                         ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, &images);
566                         if (ret)
567                                 printf("bdt subcommand not supported\n");
568                         break;
569                 case BOOTM_STATE_OS_PREP:
570                         ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, &images);
571                         if (ret)
572                                 printf("prep subcommand not supported\n");
573                         break;
574                 case BOOTM_STATE_OS_GO:
575                         disable_interrupts();
576 #ifdef CONFIG_NETCONSOLE
577                         /*
578                          * Stop the ethernet stack if NetConsole could have
579                          * left it up
580                          */
581                         eth_halt();
582 #endif
583                         arch_preboot_os();
584                         boot_fn(BOOTM_STATE_OS_GO, argc, argv, &images);
585                         break;
586         }
587
588         return ret;
589 }
590
591 /*******************************************************************/
592 /* bootm - boot application image from image in memory */
593 /*******************************************************************/
594
595 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
596 {
597         ulong           iflag;
598         ulong           load_end = 0;
599         int             ret;
600         boot_os_fn      *boot_fn;
601 #ifdef CONFIG_NEEDS_MANUAL_RELOC
602         static int relocated = 0;
603
604         if (!relocated) {
605                 int i;
606
607                 /* relocate boot function table */
608                 for (i = 0; i < ARRAY_SIZE(boot_os); i++)
609                         if (boot_os[i] != NULL)
610                                 boot_os[i] += gd->reloc_off;
611
612                 /* relocate names of sub-command table */
613                 for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
614                         cmd_bootm_sub[i].name += gd->reloc_off;
615
616                 relocated = 1;
617         }
618 #endif
619
620         /* determine if we have a sub command */
621         argc--; argv++;
622         if (argc > 0) {
623                 char *endp;
624
625                 simple_strtoul(argv[0], &endp, 16);
626                 /* endp pointing to NULL means that argv[0] was just a
627                  * valid number, pass it along to the normal bootm processing
628                  *
629                  * If endp is ':' or '#' assume a FIT identifier so pass
630                  * along for normal processing.
631                  *
632                  * Right now we assume the first arg should never be '-'
633                  */
634                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
635                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
636         }
637
638         if (bootm_start(cmdtp, flag, argc, argv))
639                 return 1;
640
641         /*
642          * We have reached the point of no return: we are going to
643          * overwrite all exception vector code, so we cannot easily
644          * recover from any failures any more...
645          */
646         iflag = disable_interrupts();
647
648 #ifdef CONFIG_NETCONSOLE
649         /* Stop the ethernet stack if NetConsole could have left it up */
650         eth_halt();
651 #endif
652
653 #if defined(CONFIG_CMD_USB)
654         /*
655          * turn off USB to prevent the host controller from writing to the
656          * SDRAM while Linux is booting. This could happen (at least for OHCI
657          * controller), because the HCCA (Host Controller Communication Area)
658          * lies within the SDRAM and the host controller writes continously to
659          * this area (as busmaster!). The HccaFrameNumber is for example
660          * updated every 1 ms within the HCCA structure in SDRAM! For more
661          * details see the OpenHCI specification.
662          */
663         usb_stop();
664 #endif
665
666         ret = bootm_load_os(images.os, &load_end, 1);
667
668         if (ret < 0) {
669                 if (ret == BOOTM_ERR_RESET)
670                         do_reset(cmdtp, flag, argc, argv);
671                 if (ret == BOOTM_ERR_OVERLAP) {
672                         if (images.legacy_hdr_valid) {
673                                 image_header_t *hdr;
674                                 hdr = &images.legacy_hdr_os_copy;
675                                 if (image_get_type(hdr) == IH_TYPE_MULTI)
676                                         puts("WARNING: legacy format multi "
677                                                 "component image "
678                                                 "overwritten\n");
679                         } else {
680                                 puts("ERROR: new format image overwritten - "
681                                         "must RESET the board to recover\n");
682                                 bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
683                                 do_reset(cmdtp, flag, argc, argv);
684                         }
685                 }
686                 if (ret == BOOTM_ERR_UNIMPLEMENTED) {
687                         if (iflag)
688                                 enable_interrupts();
689                         bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
690                         return 1;
691                 }
692         }
693
694         lmb_reserve(&images.lmb, images.os.load, (load_end - images.os.load));
695
696         if (images.os.type == IH_TYPE_STANDALONE) {
697                 if (iflag)
698                         enable_interrupts();
699                 /* This may return when 'autostart' is 'no' */
700                 bootm_start_standalone(iflag, argc, argv);
701                 return 0;
702         }
703
704         bootstage_mark(BOOTSTAGE_ID_CHECK_BOOT_OS);
705
706 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
707         if (images.os.os == IH_OS_LINUX)
708                 fixup_silent_linux();
709 #endif
710
711         boot_fn = boot_os[images.os.os];
712
713         if (boot_fn == NULL) {
714                 if (iflag)
715                         enable_interrupts();
716                 printf("ERROR: booting os '%s' (%d) is not supported\n",
717                         genimg_get_os_name(images.os.os), images.os.os);
718                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
719                 return 1;
720         }
721
722         arch_preboot_os();
723
724         boot_fn(0, argc, argv, &images);
725
726         bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
727 #ifdef DEBUG
728         puts("\n## Control returned to monitor - resetting...\n");
729 #endif
730         do_reset(cmdtp, flag, argc, argv);
731
732         return 1;
733 }
734
735 int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
736 {
737         const char *ep = getenv("autostart");
738
739         if (ep && !strcmp(ep, "yes")) {
740                 char *local_args[2];
741                 local_args[0] = (char *)cmd;
742                 local_args[1] = NULL;
743                 printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
744                 return do_bootm(cmdtp, 0, 1, local_args);
745         }
746
747         return 0;
748 }
749
750 /**
751  * image_get_kernel - verify legacy format kernel image
752  * @img_addr: in RAM address of the legacy format image to be verified
753  * @verify: data CRC verification flag
754  *
755  * image_get_kernel() verifies legacy image integrity and returns pointer to
756  * legacy image header if image verification was completed successfully.
757  *
758  * returns:
759  *     pointer to a legacy image header if valid image was found
760  *     otherwise return NULL
761  */
762 static image_header_t *image_get_kernel(ulong img_addr, int verify)
763 {
764         image_header_t *hdr = (image_header_t *)img_addr;
765
766         if (!image_check_magic(hdr)) {
767                 puts("Bad Magic Number\n");
768                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
769                 return NULL;
770         }
771         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
772
773         if (!image_check_hcrc(hdr)) {
774                 puts("Bad Header Checksum\n");
775                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
776                 return NULL;
777         }
778
779         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
780         image_print_contents(hdr);
781
782         if (verify) {
783                 puts("   Verifying Checksum ... ");
784                 if (!image_check_dcrc(hdr)) {
785                         printf("Bad Data CRC\n");
786                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
787                         return NULL;
788                 }
789                 puts("OK\n");
790         }
791         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
792
793         if (!image_check_target_arch(hdr)) {
794                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
795                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
796                 return NULL;
797         }
798         return hdr;
799 }
800
801 /**
802  * boot_get_kernel - find kernel image
803  * @os_data: pointer to a ulong variable, will hold os data start address
804  * @os_len: pointer to a ulong variable, will hold os data length
805  *
806  * boot_get_kernel() tries to find a kernel image, verifies its integrity
807  * and locates kernel data.
808  *
809  * returns:
810  *     pointer to image header if valid image was found, plus kernel start
811  *     address and length, otherwise NULL
812  */
813 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
814                 char * const argv[], bootm_headers_t *images, ulong *os_data,
815                 ulong *os_len)
816 {
817         image_header_t  *hdr;
818         ulong           img_addr;
819         const void *buf;
820 #if defined(CONFIG_FIT)
821         const char      *fit_uname_config = NULL;
822         const char      *fit_uname_kernel = NULL;
823         int             os_noffset;
824 #endif
825
826         /* find out kernel image address */
827         if (argc < 1) {
828                 img_addr = load_addr;
829                 debug("*  kernel: default image load address = 0x%08lx\n",
830                                 load_addr);
831 #if defined(CONFIG_FIT)
832         } else if (fit_parse_conf(argv[0], load_addr, &img_addr,
833                                                         &fit_uname_config)) {
834                 debug("*  kernel: config '%s' from image at 0x%08lx\n",
835                                 fit_uname_config, img_addr);
836         } else if (fit_parse_subimage(argv[0], load_addr, &img_addr,
837                                                         &fit_uname_kernel)) {
838                 debug("*  kernel: subimage '%s' from image at 0x%08lx\n",
839                                 fit_uname_kernel, img_addr);
840 #endif
841         } else {
842                 img_addr = simple_strtoul(argv[0], NULL, 16);
843                 debug("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
844         }
845
846         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
847
848         /* copy from dataflash if needed */
849         img_addr = genimg_get_image(img_addr);
850
851         /* check image type, for FIT images get FIT kernel node */
852         *os_data = *os_len = 0;
853         buf = map_sysmem(img_addr, 0);
854         switch (genimg_get_format(buf)) {
855         case IMAGE_FORMAT_LEGACY:
856                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
857                                 img_addr);
858                 hdr = image_get_kernel(img_addr, images->verify);
859                 if (!hdr)
860                         return NULL;
861                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
862
863                 /* get os_data and os_len */
864                 switch (image_get_type(hdr)) {
865                 case IH_TYPE_KERNEL:
866                 case IH_TYPE_KERNEL_NOLOAD:
867                         *os_data = image_get_data(hdr);
868                         *os_len = image_get_data_size(hdr);
869                         break;
870                 case IH_TYPE_MULTI:
871                         image_multi_getimg(hdr, 0, os_data, os_len);
872                         break;
873                 case IH_TYPE_STANDALONE:
874                         *os_data = image_get_data(hdr);
875                         *os_len = image_get_data_size(hdr);
876                         break;
877                 default:
878                         printf("Wrong Image Type for %s command\n",
879                                 cmdtp->name);
880                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
881                         return NULL;
882                 }
883
884                 /*
885                  * copy image header to allow for image overwrites during
886                  * kernel decompression.
887                  */
888                 memmove(&images->legacy_hdr_os_copy, hdr,
889                         sizeof(image_header_t));
890
891                 /* save pointer to image header */
892                 images->legacy_hdr_os = hdr;
893
894                 images->legacy_hdr_valid = 1;
895                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
896                 break;
897 #if defined(CONFIG_FIT)
898         case IMAGE_FORMAT_FIT:
899                 os_noffset = fit_image_load(images, FIT_KERNEL_PROP,
900                                 img_addr,
901                                 &fit_uname_kernel, fit_uname_config,
902                                 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
903                                 BOOTSTAGE_ID_FIT_KERNEL_START,
904                                 FIT_LOAD_IGNORED, os_data, os_len);
905                 if (os_noffset < 0)
906                         return NULL;
907
908                 images->fit_hdr_os = map_sysmem(img_addr, 0);
909                 images->fit_uname_os = fit_uname_kernel;
910                 images->fit_noffset_os = os_noffset;
911                 break;
912 #endif
913         default:
914                 printf("Wrong Image Format for %s command\n", cmdtp->name);
915                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
916                 return NULL;
917         }
918
919         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
920                         *os_data, *os_len, *os_len);
921
922         return buf;
923 }
924
925 #ifdef CONFIG_SYS_LONGHELP
926 static char bootm_help_text[] =
927         "[addr [arg ...]]\n    - boot application image stored in memory\n"
928         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
929         "\t'arg' can be the address of an initrd image\n"
930 #if defined(CONFIG_OF_LIBFDT)
931         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
932         "\ta third argument is required which is the address of the\n"
933         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
934         "\tuse a '-' for the second argument. If you do not pass a third\n"
935         "\ta bd_info struct will be passed instead\n"
936 #endif
937 #if defined(CONFIG_FIT)
938         "\t\nFor the new multi component uImage format (FIT) addresses\n"
939         "\tmust be extened to include component or configuration unit name:\n"
940         "\taddr:<subimg_uname> - direct component image specification\n"
941         "\taddr#<conf_uname>   - configuration specification\n"
942         "\tUse iminfo command to get the list of existing component\n"
943         "\timages and configurations.\n"
944 #endif
945         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
946         "must be\n"
947         "issued in the order below (it's ok to not issue all sub-commands):\n"
948         "\tstart [addr [arg ...]]\n"
949         "\tloados  - load OS image\n"
950 #if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
951         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
952 #endif
953 #if defined(CONFIG_OF_LIBFDT)
954         "\tfdt     - relocate flat device tree\n"
955 #endif
956         "\tcmdline - OS specific command line processing/setup\n"
957         "\tbdt     - OS specific bd_t processing\n"
958         "\tprep    - OS specific prep before relocation or go\n"
959         "\tgo      - start OS";
960 #endif
961
962 U_BOOT_CMD(
963         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
964         "boot application image from memory", bootm_help_text
965 );
966
967 /*******************************************************************/
968 /* bootd - boot default image */
969 /*******************************************************************/
970 #if defined(CONFIG_CMD_BOOTD)
971 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
972 {
973         int rcode = 0;
974
975         if (run_command(getenv("bootcmd"), flag) < 0)
976                 rcode = 1;
977         return rcode;
978 }
979
980 U_BOOT_CMD(
981         boot,   1,      1,      do_bootd,
982         "boot default, i.e., run 'bootcmd'",
983         ""
984 );
985
986 /* keep old command name "bootd" for backward compatibility */
987 U_BOOT_CMD(
988         bootd, 1,       1,      do_bootd,
989         "boot default, i.e., run 'bootcmd'",
990         ""
991 );
992
993 #endif
994
995
996 /*******************************************************************/
997 /* iminfo - print header info for a requested image */
998 /*******************************************************************/
999 #if defined(CONFIG_CMD_IMI)
1000 static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1001 {
1002         int     arg;
1003         ulong   addr;
1004         int     rcode = 0;
1005
1006         if (argc < 2) {
1007                 return image_info(load_addr);
1008         }
1009
1010         for (arg = 1; arg < argc; ++arg) {
1011                 addr = simple_strtoul(argv[arg], NULL, 16);
1012                 if (image_info(addr) != 0)
1013                         rcode = 1;
1014         }
1015         return rcode;
1016 }
1017
1018 static int image_info(ulong addr)
1019 {
1020         void *hdr = (void *)addr;
1021
1022         printf("\n## Checking Image at %08lx ...\n", addr);
1023
1024         switch (genimg_get_format(hdr)) {
1025         case IMAGE_FORMAT_LEGACY:
1026                 puts("   Legacy image found\n");
1027                 if (!image_check_magic(hdr)) {
1028                         puts("   Bad Magic Number\n");
1029                         return 1;
1030                 }
1031
1032                 if (!image_check_hcrc(hdr)) {
1033                         puts("   Bad Header Checksum\n");
1034                         return 1;
1035                 }
1036
1037                 image_print_contents(hdr);
1038
1039                 puts("   Verifying Checksum ... ");
1040                 if (!image_check_dcrc(hdr)) {
1041                         puts("   Bad Data CRC\n");
1042                         return 1;
1043                 }
1044                 puts("OK\n");
1045                 return 0;
1046 #if defined(CONFIG_FIT)
1047         case IMAGE_FORMAT_FIT:
1048                 puts("   FIT image found\n");
1049
1050                 if (!fit_check_format(hdr)) {
1051                         puts("Bad FIT image format!\n");
1052                         return 1;
1053                 }
1054
1055                 fit_print_contents(hdr);
1056
1057                 if (!fit_all_image_verify(hdr)) {
1058                         puts("Bad hash in FIT image!\n");
1059                         return 1;
1060                 }
1061
1062                 return 0;
1063 #endif
1064         default:
1065                 puts("Unknown image format!\n");
1066                 break;
1067         }
1068
1069         return 1;
1070 }
1071
1072 U_BOOT_CMD(
1073         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
1074         "print header information for application image",
1075         "addr [addr ...]\n"
1076         "    - print header information for application image starting at\n"
1077         "      address 'addr' in memory; this includes verification of the\n"
1078         "      image contents (magic number, header and payload checksums)"
1079 );
1080 #endif
1081
1082
1083 /*******************************************************************/
1084 /* imls - list all images found in flash */
1085 /*******************************************************************/
1086 #if defined(CONFIG_CMD_IMLS)
1087 static int do_imls_nor(void)
1088 {
1089         flash_info_t *info;
1090         int i, j;
1091         void *hdr;
1092
1093         for (i = 0, info = &flash_info[0];
1094                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
1095
1096                 if (info->flash_id == FLASH_UNKNOWN)
1097                         goto next_bank;
1098                 for (j = 0; j < info->sector_count; ++j) {
1099
1100                         hdr = (void *)info->start[j];
1101                         if (!hdr)
1102                                 goto next_sector;
1103
1104                         switch (genimg_get_format(hdr)) {
1105                         case IMAGE_FORMAT_LEGACY:
1106                                 if (!image_check_hcrc(hdr))
1107                                         goto next_sector;
1108
1109                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
1110                                 image_print_contents(hdr);
1111
1112                                 puts("   Verifying Checksum ... ");
1113                                 if (!image_check_dcrc(hdr)) {
1114                                         puts("Bad Data CRC\n");
1115                                 } else {
1116                                         puts("OK\n");
1117                                 }
1118                                 break;
1119 #if defined(CONFIG_FIT)
1120                         case IMAGE_FORMAT_FIT:
1121                                 if (!fit_check_format(hdr))
1122                                         goto next_sector;
1123
1124                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
1125                                 fit_print_contents(hdr);
1126                                 break;
1127 #endif
1128                         default:
1129                                 goto next_sector;
1130                         }
1131
1132 next_sector:            ;
1133                 }
1134 next_bank:      ;
1135         }
1136         return 0;
1137 }
1138 #endif
1139
1140 #if defined(CONFIG_CMD_IMLS_NAND)
1141 static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
1142                 size_t len)
1143 {
1144         void *imgdata;
1145         int ret;
1146
1147         imgdata = malloc(len);
1148         if (!imgdata) {
1149                 printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
1150                                 nand_dev, off);
1151                 printf("   Low memory(cannot allocate memory for image)\n");
1152                 return -ENOMEM;
1153         }
1154
1155         ret = nand_read_skip_bad(nand, off, &len,
1156                         imgdata);
1157         if (ret < 0 && ret != -EUCLEAN) {
1158                 free(imgdata);
1159                 return ret;
1160         }
1161
1162         if (!image_check_hcrc(imgdata)) {
1163                 free(imgdata);
1164                 return 0;
1165         }
1166
1167         printf("Legacy Image at NAND device %d offset %08llX:\n",
1168                         nand_dev, off);
1169         image_print_contents(imgdata);
1170
1171         puts("   Verifying Checksum ... ");
1172         if (!image_check_dcrc(imgdata))
1173                 puts("Bad Data CRC\n");
1174         else
1175                 puts("OK\n");
1176
1177         free(imgdata);
1178
1179         return 0;
1180 }
1181
1182 static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
1183                 size_t len)
1184 {
1185         void *imgdata;
1186         int ret;
1187
1188         imgdata = malloc(len);
1189         if (!imgdata) {
1190                 printf("May be a FIT Image at NAND device %d offset %08llX:\n",
1191                                 nand_dev, off);
1192                 printf("   Low memory(cannot allocate memory for image)\n");
1193                 return -ENOMEM;
1194         }
1195
1196         ret = nand_read_skip_bad(nand, off, &len,
1197                         imgdata);
1198         if (ret < 0 && ret != -EUCLEAN) {
1199                 free(imgdata);
1200                 return ret;
1201         }
1202
1203         if (!fit_check_format(imgdata)) {
1204                 free(imgdata);
1205                 return 0;
1206         }
1207
1208         printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
1209
1210         fit_print_contents(imgdata);
1211         free(imgdata);
1212
1213         return 0;
1214 }
1215
1216 static int do_imls_nand(void)
1217 {
1218         nand_info_t *nand;
1219         int nand_dev = nand_curr_device;
1220         size_t len;
1221         loff_t off;
1222         u32 buffer[16];
1223
1224         if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
1225                 puts("\nNo NAND devices available\n");
1226                 return -ENODEV;
1227         }
1228
1229         printf("\n");
1230
1231         for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
1232                 nand = &nand_info[nand_dev];
1233                 if (!nand->name || !nand->size)
1234                         continue;
1235
1236                 for (off = 0; off < nand->size; off += nand->erasesize) {
1237                         const image_header_t *header;
1238                         int ret;
1239
1240                         if (nand_block_isbad(nand, off))
1241                                 continue;
1242
1243                         len = sizeof(buffer);
1244
1245                         ret = nand_read(nand, off, &len, (u8 *)buffer);
1246                         if (ret < 0 && ret != -EUCLEAN) {
1247                                 printf("NAND read error %d at offset %08llX\n",
1248                                                 ret, off);
1249                                 continue;
1250                         }
1251
1252                         switch (genimg_get_format(buffer)) {
1253                         case IMAGE_FORMAT_LEGACY:
1254                                 header = (const image_header_t *)buffer;
1255
1256                                 len = image_get_image_size(header);
1257                                 nand_imls_legacyimage(nand, nand_dev, off, len);
1258                                 break;
1259 #if defined(CONFIG_FIT)
1260                         case IMAGE_FORMAT_FIT:
1261                                 len = fit_get_size(buffer);
1262                                 nand_imls_fitimage(nand, nand_dev, off, len);
1263                                 break;
1264 #endif
1265                         }
1266                 }
1267         }
1268
1269         return 0;
1270 }
1271 #endif
1272
1273 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
1274 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1275 {
1276         int ret_nor = 0, ret_nand = 0;
1277
1278 #if defined(CONFIG_CMD_IMLS)
1279         ret_nor = do_imls_nor();
1280 #endif
1281
1282 #if defined(CONFIG_CMD_IMLS_NAND)
1283         ret_nand = do_imls_nand();
1284 #endif
1285
1286         if (ret_nor)
1287                 return ret_nor;
1288
1289         if (ret_nand)
1290                 return ret_nand;
1291
1292         return (0);
1293 }
1294
1295 U_BOOT_CMD(
1296         imls,   1,              1,      do_imls,
1297         "list all images found in flash",
1298         "\n"
1299         "    - Prints information about all images found at sector/block\n"
1300         "      boundaries in nor/nand flash."
1301 );
1302 #endif
1303
1304 /*******************************************************************/
1305 /* helper routines */
1306 /*******************************************************************/
1307 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
1308
1309 #define CONSOLE_ARG     "console="
1310 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
1311
1312 static void fixup_silent_linux(void)
1313 {
1314         char *buf;
1315         const char *env_val;
1316         char *cmdline = getenv("bootargs");
1317
1318         /* Only fix cmdline when requested */
1319         if (!(gd->flags & GD_FLG_SILENT))
1320                 return;
1321
1322         debug("before silent fix-up: %s\n", cmdline);
1323         if (cmdline && (cmdline[0] != '\0')) {
1324                 char *start = strstr(cmdline, CONSOLE_ARG);
1325
1326                 /* Allocate space for maximum possible new command line */
1327                 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
1328                 if (!buf) {
1329                         debug("%s: out of memory\n", __func__);
1330                         return;
1331                 }
1332
1333                 if (start) {
1334                         char *end = strchr(start, ' ');
1335                         int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
1336
1337                         strncpy(buf, cmdline, num_start_bytes);
1338                         if (end)
1339                                 strcpy(buf + num_start_bytes, end);
1340                         else
1341                                 buf[num_start_bytes] = '\0';
1342                 } else {
1343                         sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
1344                 }
1345                 env_val = buf;
1346         } else {
1347                 buf = NULL;
1348                 env_val = CONSOLE_ARG;
1349         }
1350
1351         setenv("bootargs", env_val);
1352         debug("after silent fix-up: %s\n", env_val);
1353         free(buf);
1354 }
1355 #endif /* CONFIG_SILENT_CONSOLE */
1356
1357
1358 /*******************************************************************/
1359 /* OS booting routines */
1360 /*******************************************************************/
1361
1362 #ifdef CONFIG_BOOTM_NETBSD
1363 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1364                             bootm_headers_t *images)
1365 {
1366         void (*loader)(bd_t *, image_header_t *, char *, char *);
1367         image_header_t *os_hdr, *hdr;
1368         ulong kernel_data, kernel_len;
1369         char *consdev;
1370         char *cmdline;
1371
1372         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1373                 return 1;
1374
1375 #if defined(CONFIG_FIT)
1376         if (!images->legacy_hdr_valid) {
1377                 fit_unsupported_reset("NetBSD");
1378                 return 1;
1379         }
1380 #endif
1381         hdr = images->legacy_hdr_os;
1382
1383         /*
1384          * Booting a (NetBSD) kernel image
1385          *
1386          * This process is pretty similar to a standalone application:
1387          * The (first part of an multi-) image must be a stage-2 loader,
1388          * which in turn is responsible for loading & invoking the actual
1389          * kernel.  The only differences are the parameters being passed:
1390          * besides the board info strucure, the loader expects a command
1391          * line, the name of the console device, and (optionally) the
1392          * address of the original image header.
1393          */
1394         os_hdr = NULL;
1395         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1396                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1397                 if (kernel_len)
1398                         os_hdr = hdr;
1399         }
1400
1401         consdev = "";
1402 #if   defined(CONFIG_8xx_CONS_SMC1)
1403         consdev = "smc1";
1404 #elif defined(CONFIG_8xx_CONS_SMC2)
1405         consdev = "smc2";
1406 #elif defined(CONFIG_8xx_CONS_SCC2)
1407         consdev = "scc2";
1408 #elif defined(CONFIG_8xx_CONS_SCC3)
1409         consdev = "scc3";
1410 #endif
1411
1412         if (argc > 0) {
1413                 ulong len;
1414                 int   i;
1415
1416                 for (i = 0, len = 0; i < argc; i += 1)
1417                         len += strlen(argv[i]) + 1;
1418                 cmdline = malloc(len);
1419
1420                 for (i = 0, len = 0; i < argc; i += 1) {
1421                         if (i > 0)
1422                                 cmdline[len++] = ' ';
1423                         strcpy(&cmdline[len], argv[i]);
1424                         len += strlen(argv[i]);
1425                 }
1426         } else if ((cmdline = getenv("bootargs")) == NULL) {
1427                 cmdline = "";
1428         }
1429
1430         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1431
1432         printf("## Transferring control to NetBSD stage-2 loader "
1433                 "(at address %08lx) ...\n",
1434                 (ulong)loader);
1435
1436         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1437
1438         /*
1439          * NetBSD Stage-2 Loader Parameters:
1440          *   r3: ptr to board info data
1441          *   r4: image address
1442          *   r5: console device
1443          *   r6: boot args string
1444          */
1445         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1446
1447         return 1;
1448 }
1449 #endif /* CONFIG_BOOTM_NETBSD*/
1450
1451 #ifdef CONFIG_LYNXKDI
1452 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1453                              bootm_headers_t *images)
1454 {
1455         image_header_t *hdr = &images->legacy_hdr_os_copy;
1456
1457         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1458                 return 1;
1459
1460 #if defined(CONFIG_FIT)
1461         if (!images->legacy_hdr_valid) {
1462                 fit_unsupported_reset("Lynx");
1463                 return 1;
1464         }
1465 #endif
1466
1467         lynxkdi_boot((image_header_t *)hdr);
1468
1469         return 1;
1470 }
1471 #endif /* CONFIG_LYNXKDI */
1472
1473 #ifdef CONFIG_BOOTM_RTEMS
1474 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1475                            bootm_headers_t *images)
1476 {
1477         void (*entry_point)(bd_t *);
1478
1479         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1480                 return 1;
1481
1482 #if defined(CONFIG_FIT)
1483         if (!images->legacy_hdr_valid) {
1484                 fit_unsupported_reset("RTEMS");
1485                 return 1;
1486         }
1487 #endif
1488
1489         entry_point = (void (*)(bd_t *))images->ep;
1490
1491         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1492                 (ulong)entry_point);
1493
1494         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1495
1496         /*
1497          * RTEMS Parameters:
1498          *   r3: ptr to board info data
1499          */
1500         (*entry_point)(gd->bd);
1501
1502         return 1;
1503 }
1504 #endif /* CONFIG_BOOTM_RTEMS */
1505
1506 #if defined(CONFIG_BOOTM_OSE)
1507 static int do_bootm_ose(int flag, int argc, char * const argv[],
1508                            bootm_headers_t *images)
1509 {
1510         void (*entry_point)(void);
1511
1512         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1513                 return 1;
1514
1515 #if defined(CONFIG_FIT)
1516         if (!images->legacy_hdr_valid) {
1517                 fit_unsupported_reset("OSE");
1518                 return 1;
1519         }
1520 #endif
1521
1522         entry_point = (void (*)(void))images->ep;
1523
1524         printf("## Transferring control to OSE (at address %08lx) ...\n",
1525                 (ulong)entry_point);
1526
1527         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1528
1529         /*
1530          * OSE Parameters:
1531          *   None
1532          */
1533         (*entry_point)();
1534
1535         return 1;
1536 }
1537 #endif /* CONFIG_BOOTM_OSE */
1538
1539 #if defined(CONFIG_BOOTM_PLAN9)
1540 static int do_bootm_plan9(int flag, int argc, char * const argv[],
1541                            bootm_headers_t *images)
1542 {
1543         void (*entry_point)(void);
1544
1545         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1546                 return 1;
1547
1548 #if defined(CONFIG_FIT)
1549         if (!images->legacy_hdr_valid) {
1550                 fit_unsupported_reset("Plan 9");
1551                 return 1;
1552         }
1553 #endif
1554
1555         entry_point = (void (*)(void))images->ep;
1556
1557         printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
1558                 (ulong)entry_point);
1559
1560         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1561
1562         /*
1563          * Plan 9 Parameters:
1564          *   None
1565          */
1566         (*entry_point)();
1567
1568         return 1;
1569 }
1570 #endif /* CONFIG_BOOTM_PLAN9 */
1571
1572 #if defined(CONFIG_CMD_ELF)
1573 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1574                              bootm_headers_t *images)
1575 {
1576         char str[80];
1577
1578         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1579                 return 1;
1580
1581 #if defined(CONFIG_FIT)
1582         if (!images->legacy_hdr_valid) {
1583                 fit_unsupported_reset("VxWorks");
1584                 return 1;
1585         }
1586 #endif
1587
1588         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1589         setenv("loadaddr", str);
1590         do_bootvx(NULL, 0, 0, NULL);
1591
1592         return 1;
1593 }
1594
1595 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1596                             bootm_headers_t *images)
1597 {
1598         char *local_args[2];
1599         char str[16];
1600
1601         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1602                 return 1;
1603
1604 #if defined(CONFIG_FIT)
1605         if (!images->legacy_hdr_valid) {
1606                 fit_unsupported_reset("QNX");
1607                 return 1;
1608         }
1609 #endif
1610
1611         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1612         local_args[0] = argv[0];
1613         local_args[1] = str;    /* and provide it via the arguments */
1614         do_bootelf(NULL, 0, 2, local_args);
1615
1616         return 1;
1617 }
1618 #endif
1619
1620 #ifdef CONFIG_INTEGRITY
1621 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1622                            bootm_headers_t *images)
1623 {
1624         void (*entry_point)(void);
1625
1626         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1627                 return 1;
1628
1629 #if defined(CONFIG_FIT)
1630         if (!images->legacy_hdr_valid) {
1631                 fit_unsupported_reset("INTEGRITY");
1632                 return 1;
1633         }
1634 #endif
1635
1636         entry_point = (void (*)(void))images->ep;
1637
1638         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1639                 (ulong)entry_point);
1640
1641         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1642
1643         /*
1644          * INTEGRITY Parameters:
1645          *   None
1646          */
1647         (*entry_point)();
1648
1649         return 1;
1650 }
1651 #endif
1652
1653 #ifdef CONFIG_CMD_BOOTZ
1654
1655 static int __bootz_setup(void *image, void **start, void **end)
1656 {
1657         /* Please define bootz_setup() for your platform */
1658
1659         puts("Your platform's zImage format isn't supported yet!\n");
1660         return -1;
1661 }
1662 int bootz_setup(void *image, void **start, void **end)
1663         __attribute__((weak, alias("__bootz_setup")));
1664
1665 /*
1666  * zImage booting support
1667  */
1668 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
1669                         char * const argv[], bootm_headers_t *images)
1670 {
1671         int ret;
1672         void *zi_start, *zi_end;
1673
1674         memset(images, 0, sizeof(bootm_headers_t));
1675
1676         boot_start_lmb(images);
1677
1678         /* Setup Linux kernel zImage entry point */
1679         if (argc < 2) {
1680                 images->ep = load_addr;
1681                 debug("*  kernel: default image load address = 0x%08lx\n",
1682                                 load_addr);
1683         } else {
1684                 images->ep = simple_strtoul(argv[1], NULL, 16);
1685                 debug("*  kernel: cmdline image address = 0x%08lx\n",
1686                         images->ep);
1687         }
1688
1689         ret = bootz_setup((void *)images->ep, &zi_start, &zi_end);
1690         if (ret != 0)
1691                 return 1;
1692
1693         lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
1694
1695         /* Find ramdisk */
1696         ret = boot_get_ramdisk(argc, argv, images, IH_INITRD_ARCH,
1697                         &images->rd_start, &images->rd_end);
1698         if (ret) {
1699                 puts("Ramdisk image is corrupt or invalid\n");
1700                 return 1;
1701         }
1702
1703 #if defined(CONFIG_OF_LIBFDT)
1704         /* find flattened device tree */
1705         ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, images,
1706                            &images->ft_addr, &images->ft_len);
1707         if (ret) {
1708                 puts("Could not find a valid device tree\n");
1709                 return 1;
1710         }
1711
1712         set_working_fdt_addr(images->ft_addr);
1713 #endif
1714
1715         return 0;
1716 }
1717
1718 int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1719 {
1720         bootm_headers_t images;
1721
1722         if (bootz_start(cmdtp, flag, argc, argv, &images))
1723                 return 1;
1724
1725         /*
1726          * We have reached the point of no return: we are going to
1727          * overwrite all exception vector code, so we cannot easily
1728          * recover from any failures any more...
1729          */
1730         disable_interrupts();
1731
1732 #ifdef CONFIG_NETCONSOLE
1733         /* Stop the ethernet stack if NetConsole could have left it up */
1734         eth_halt();
1735 #endif
1736
1737 #if defined(CONFIG_CMD_USB)
1738         /*
1739          * turn off USB to prevent the host controller from writing to the
1740          * SDRAM while Linux is booting. This could happen (at least for OHCI
1741          * controller), because the HCCA (Host Controller Communication Area)
1742          * lies within the SDRAM and the host controller writes continously to
1743          * this area (as busmaster!). The HccaFrameNumber is for example
1744          * updated every 1 ms within the HCCA structure in SDRAM! For more
1745          * details see the OpenHCI specification.
1746          */
1747         usb_stop();
1748 #endif
1749
1750 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
1751         fixup_silent_linux();
1752 #endif
1753         arch_preboot_os();
1754
1755         do_bootm_linux(0, argc, argv, &images);
1756 #ifdef DEBUG
1757         puts("\n## Control returned to monitor - resetting...\n");
1758 #endif
1759         do_reset(cmdtp, flag, argc, argv);
1760
1761         return 1;
1762 }
1763
1764 #ifdef CONFIG_SYS_LONGHELP
1765 static char bootz_help_text[] =
1766         "[addr [initrd[:size]] [fdt]]\n"
1767         "    - boot Linux zImage stored in memory\n"
1768         "\tThe argument 'initrd' is optional and specifies the address\n"
1769         "\tof the initrd in memory. The optional argument ':size' allows\n"
1770         "\tspecifying the size of RAW initrd.\n"
1771 #if defined(CONFIG_OF_LIBFDT)
1772         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1773         "\ta third argument is required which is the address of the\n"
1774         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1775         "\tuse a '-' for the second argument. If you do not pass a third\n"
1776         "\ta bd_info struct will be passed instead\n"
1777 #endif
1778         "";
1779 #endif
1780
1781 U_BOOT_CMD(
1782         bootz,  CONFIG_SYS_MAXARGS,     1,      do_bootz,
1783         "boot Linux zImage image from memory", bootz_help_text
1784 );
1785 #endif  /* CONFIG_CMD_BOOTZ */