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