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b97a2a0a MB |
1 | /* |
2 | * (C) Copyright 2008 Semihalf | |
3 | * | |
4 | * (C) Copyright 2000-2006 | |
5 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
6 | * | |
7 | * See file CREDITS for list of people who contributed to this | |
8 | * project. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public License as | |
12 | * published by the Free Software Foundation; either version 2 of | |
13 | * the License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
23 | * MA 02111-1307 USA | |
24 | */ | |
ceaed2b1 MB |
25 | |
26 | #define DEBUG | |
27 | ||
b97a2a0a | 28 | #ifndef USE_HOSTCC |
5ad03eb3 MB |
29 | #include <common.h> |
30 | #include <watchdog.h> | |
31 | ||
32 | #ifdef CONFIG_SHOW_BOOT_PROGRESS | |
33 | #include <status_led.h> | |
34 | #endif | |
35 | ||
36 | #ifdef CONFIG_HAS_DATAFLASH | |
37 | #include <dataflash.h> | |
38 | #endif | |
39 | ||
ceaed2b1 MB |
40 | #ifdef CONFIG_LOGBUFFER |
41 | #include <logbuff.h> | |
42 | #endif | |
43 | ||
2242f536 MB |
44 | #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) |
45 | #include <rtc.h> | |
46 | #endif | |
47 | ||
fff888a1 MB |
48 | #if defined(CONFIG_FIT) |
49 | #include <fdt.h> | |
50 | #include <libfdt.h> | |
51 | #include <fdt_support.h> | |
52 | #endif | |
53 | ||
b6b0fe64 MB |
54 | #ifdef CONFIG_CMD_BDI |
55 | extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); | |
56 | #endif | |
57 | ||
58 | DECLARE_GLOBAL_DATA_PTR; | |
8a5ea3e6 MB |
59 | |
60 | static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag, | |
61 | int argc, char *argv[], | |
62 | ulong rd_addr, uint8_t arch, int verify); | |
b97a2a0a | 63 | #else |
5ad03eb3 | 64 | #include "mkimage.h" |
b6b0fe64 | 65 | #endif /* USE_HOSTCC*/ |
b97a2a0a MB |
66 | |
67 | #include <image.h> | |
68 | ||
69 | unsigned long crc32 (unsigned long, const unsigned char *, unsigned int); | |
70 | ||
71 | int image_check_hcrc (image_header_t *hdr) | |
72 | { | |
73 | ulong hcrc; | |
74 | ulong len = image_get_header_size (); | |
75 | image_header_t header; | |
76 | ||
77 | /* Copy header so we can blank CRC field for re-calculation */ | |
78 | memmove (&header, (char *)hdr, image_get_header_size ()); | |
79 | image_set_hcrc (&header, 0); | |
80 | ||
81 | hcrc = crc32 (0, (unsigned char *)&header, len); | |
82 | ||
83 | return (hcrc == image_get_hcrc (hdr)); | |
84 | } | |
85 | ||
86 | int image_check_dcrc (image_header_t *hdr) | |
87 | { | |
88 | ulong data = image_get_data (hdr); | |
89 | ulong len = image_get_data_size (hdr); | |
90 | ulong dcrc = crc32 (0, (unsigned char *)data, len); | |
91 | ||
92 | return (dcrc == image_get_dcrc (hdr)); | |
93 | } | |
94 | ||
af13cdbc | 95 | #ifndef USE_HOSTCC |
b97a2a0a MB |
96 | int image_check_dcrc_wd (image_header_t *hdr, ulong chunksz) |
97 | { | |
98 | ulong dcrc = 0; | |
99 | ulong len = image_get_data_size (hdr); | |
100 | ulong data = image_get_data (hdr); | |
101 | ||
102 | #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) | |
103 | ulong cdata = data; | |
104 | ulong edata = cdata + len; | |
105 | ||
106 | while (cdata < edata) { | |
107 | ulong chunk = edata - cdata; | |
108 | ||
109 | if (chunk > chunksz) | |
110 | chunk = chunksz; | |
111 | dcrc = crc32 (dcrc, (unsigned char *)cdata, chunk); | |
112 | cdata += chunk; | |
113 | ||
114 | WATCHDOG_RESET (); | |
115 | } | |
116 | #else | |
117 | dcrc = crc32 (0, (unsigned char *)data, len); | |
118 | #endif | |
119 | ||
120 | return (dcrc == image_get_dcrc (hdr)); | |
121 | } | |
122 | ||
123 | int getenv_verify (void) | |
124 | { | |
125 | char *s = getenv ("verify"); | |
126 | return (s && (*s == 'n')) ? 0 : 1; | |
127 | } | |
af13cdbc MB |
128 | |
129 | void memmove_wd (void *to, void *from, size_t len, ulong chunksz) | |
130 | { | |
131 | #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) | |
132 | while (len > 0) { | |
133 | size_t tail = (len > chunksz) ? chunksz : len; | |
134 | WATCHDOG_RESET (); | |
135 | memmove (to, from, tail); | |
136 | to += tail; | |
137 | from += tail; | |
138 | len -= tail; | |
139 | } | |
140 | #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */ | |
141 | memmove (to, from, len); | |
142 | #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */ | |
143 | } | |
144 | #endif /* USE_HOSTCC */ | |
f13e7b2e MB |
145 | |
146 | /** | |
147 | * image_multi_count - get component (sub-image) count | |
148 | * @hdr: pointer to the header of the multi component image | |
149 | * | |
150 | * image_multi_count() returns number of components in a multi | |
151 | * component image. | |
152 | * | |
153 | * Note: no checking of the image type is done, caller must pass | |
154 | * a valid multi component image. | |
155 | * | |
156 | * returns: | |
157 | * number of components | |
158 | */ | |
159 | ulong image_multi_count (image_header_t *hdr) | |
160 | { | |
161 | ulong i, count = 0; | |
162 | ulong *size; | |
163 | ||
164 | /* get start of the image payload, which in case of multi | |
165 | * component images that points to a table of component sizes */ | |
166 | size = (ulong *)image_get_data (hdr); | |
167 | ||
168 | /* count non empty slots */ | |
169 | for (i = 0; size[i]; ++i) | |
170 | count++; | |
171 | ||
172 | return count; | |
173 | } | |
174 | ||
175 | /** | |
176 | * image_multi_getimg - get component data address and size | |
177 | * @hdr: pointer to the header of the multi component image | |
178 | * @idx: index of the requested component | |
179 | * @data: pointer to a ulong variable, will hold component data address | |
180 | * @len: pointer to a ulong variable, will hold component size | |
181 | * | |
182 | * image_multi_getimg() returns size and data address for the requested | |
183 | * component in a multi component image. | |
184 | * | |
185 | * Note: no checking of the image type is done, caller must pass | |
186 | * a valid multi component image. | |
187 | * | |
188 | * returns: | |
189 | * data address and size of the component, if idx is valid | |
190 | * 0 in data and len, if idx is out of range | |
191 | */ | |
192 | void image_multi_getimg (image_header_t *hdr, ulong idx, | |
193 | ulong *data, ulong *len) | |
194 | { | |
195 | int i; | |
196 | ulong *size; | |
197 | ulong offset, tail, count, img_data; | |
198 | ||
199 | /* get number of component */ | |
200 | count = image_multi_count (hdr); | |
201 | ||
202 | /* get start of the image payload, which in case of multi | |
203 | * component images that points to a table of component sizes */ | |
204 | size = (ulong *)image_get_data (hdr); | |
205 | ||
206 | /* get address of the proper component data start, which means | |
207 | * skipping sizes table (add 1 for last, null entry) */ | |
208 | img_data = image_get_data (hdr) + (count + 1) * sizeof (ulong); | |
209 | ||
210 | if (idx < count) { | |
211 | *len = size[idx]; | |
212 | offset = 0; | |
213 | tail = 0; | |
214 | ||
215 | /* go over all indices preceding requested component idx */ | |
216 | for (i = 0; i < idx; i++) { | |
217 | /* add up i-th component size */ | |
218 | offset += size[i]; | |
219 | ||
220 | /* add up alignment for i-th component */ | |
221 | tail += (4 - size[i] % 4); | |
222 | } | |
223 | ||
224 | /* calculate idx-th component data address */ | |
225 | *data = img_data + offset + tail; | |
226 | } else { | |
227 | *len = 0; | |
228 | *data = 0; | |
229 | } | |
230 | } | |
42b73e8e MB |
231 | |
232 | #ifndef USE_HOSTCC | |
233 | const char* image_get_os_name (uint8_t os) | |
234 | { | |
235 | const char *name; | |
236 | ||
237 | switch (os) { | |
238 | case IH_OS_INVALID: name = "Invalid OS"; break; | |
239 | case IH_OS_NETBSD: name = "NetBSD"; break; | |
240 | case IH_OS_LINUX: name = "Linux"; break; | |
241 | case IH_OS_VXWORKS: name = "VxWorks"; break; | |
242 | case IH_OS_QNX: name = "QNX"; break; | |
243 | case IH_OS_U_BOOT: name = "U-Boot"; break; | |
244 | case IH_OS_RTEMS: name = "RTEMS"; break; | |
245 | #ifdef CONFIG_ARTOS | |
246 | case IH_OS_ARTOS: name = "ARTOS"; break; | |
247 | #endif | |
248 | #ifdef CONFIG_LYNXKDI | |
249 | case IH_OS_LYNXOS: name = "LynxOS"; break; | |
250 | #endif | |
251 | default: name = "Unknown OS"; break; | |
252 | } | |
253 | ||
254 | return name; | |
255 | } | |
256 | ||
257 | const char* image_get_arch_name (uint8_t arch) | |
258 | { | |
259 | const char *name; | |
260 | ||
261 | switch (arch) { | |
262 | case IH_ARCH_INVALID: name = "Invalid Architecture"; break; | |
263 | case IH_ARCH_ALPHA: name = "Alpha"; break; | |
264 | case IH_ARCH_ARM: name = "ARM"; break; | |
265 | case IH_ARCH_AVR32: name = "AVR32"; break; | |
266 | case IH_ARCH_BLACKFIN: name = "Blackfin"; break; | |
267 | case IH_ARCH_I386: name = "Intel x86"; break; | |
268 | case IH_ARCH_IA64: name = "IA64"; break; | |
269 | case IH_ARCH_M68K: name = "M68K"; break; | |
270 | case IH_ARCH_MICROBLAZE:name = "Microblaze"; break; | |
271 | case IH_ARCH_MIPS64: name = "MIPS 64 Bit"; break; | |
272 | case IH_ARCH_MIPS: name = "MIPS"; break; | |
273 | case IH_ARCH_NIOS2: name = "Nios-II"; break; | |
274 | case IH_ARCH_NIOS: name = "Nios"; break; | |
275 | case IH_ARCH_PPC: name = "PowerPC"; break; | |
276 | case IH_ARCH_S390: name = "IBM S390"; break; | |
277 | case IH_ARCH_SH: name = "SuperH"; break; | |
278 | case IH_ARCH_SPARC64: name = "SPARC 64 Bit"; break; | |
279 | case IH_ARCH_SPARC: name = "SPARC"; break; | |
280 | default: name = "Unknown Architecture"; break; | |
281 | } | |
282 | ||
283 | return name; | |
284 | } | |
285 | ||
286 | const char* image_get_type_name (uint8_t type) | |
287 | { | |
288 | const char *name; | |
289 | ||
290 | switch (type) { | |
291 | case IH_TYPE_INVALID: name = "Invalid Image"; break; | |
292 | case IH_TYPE_STANDALONE:name = "Standalone Program"; break; | |
293 | case IH_TYPE_KERNEL: name = "Kernel Image"; break; | |
294 | case IH_TYPE_RAMDISK: name = "RAMDisk Image"; break; | |
295 | case IH_TYPE_MULTI: name = "Multi-File Image"; break; | |
296 | case IH_TYPE_FIRMWARE: name = "Firmware"; break; | |
297 | case IH_TYPE_SCRIPT: name = "Script"; break; | |
298 | case IH_TYPE_FLATDT: name = "Flat Device Tree"; break; | |
299 | default: name = "Unknown Image"; break; | |
300 | } | |
301 | ||
302 | return name; | |
303 | } | |
304 | ||
305 | const char* image_get_comp_name (uint8_t comp) | |
306 | { | |
307 | const char *name; | |
308 | ||
309 | switch (comp) { | |
310 | case IH_COMP_NONE: name = "uncompressed"; break; | |
311 | case IH_COMP_GZIP: name = "gzip compressed"; break; | |
312 | case IH_COMP_BZIP2: name = "bzip2 compressed"; break; | |
313 | default: name = "unknown compression"; break; | |
314 | } | |
315 | ||
316 | return name; | |
317 | } | |
5ad03eb3 | 318 | |
2242f536 MB |
319 | static void image_print_type (image_header_t *hdr) |
320 | { | |
321 | const char *os, *arch, *type, *comp; | |
322 | ||
323 | os = image_get_os_name (image_get_os (hdr)); | |
324 | arch = image_get_arch_name (image_get_arch (hdr)); | |
325 | type = image_get_type_name (image_get_type (hdr)); | |
326 | comp = image_get_comp_name (image_get_comp (hdr)); | |
327 | ||
328 | printf ("%s %s %s (%s)", arch, os, type, comp); | |
329 | } | |
330 | ||
331 | void image_print_contents (image_header_t *hdr) | |
332 | { | |
333 | #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) | |
334 | time_t timestamp = (time_t)image_get_time (hdr); | |
335 | struct rtc_time tm; | |
336 | #endif | |
337 | ||
338 | printf (" Image Name: %.*s\n", IH_NMLEN, image_get_name (hdr)); | |
339 | ||
340 | #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) | |
341 | to_tm (timestamp, &tm); | |
342 | printf (" Created: %4d-%02d-%02d %2d:%02d:%02d UTC\n", | |
343 | tm.tm_year, tm.tm_mon, tm.tm_mday, | |
344 | tm.tm_hour, tm.tm_min, tm.tm_sec); | |
345 | #endif | |
346 | puts (" Image Type: "); | |
347 | image_print_type (hdr); | |
348 | ||
349 | printf ("\n Data Size: %d Bytes = ", image_get_data_size (hdr)); | |
350 | print_size (image_get_data_size (hdr), "\n"); | |
351 | printf (" Load Address: %08x\n" | |
352 | " Entry Point: %08x\n", | |
353 | image_get_load (hdr), image_get_ep (hdr)); | |
354 | ||
355 | if (image_check_type (hdr, IH_TYPE_MULTI)) { | |
356 | int i; | |
357 | ulong data, len; | |
358 | ulong count = image_multi_count (hdr); | |
359 | ||
360 | puts (" Contents:\n"); | |
361 | for (i = 0; i < count; i++) { | |
362 | image_multi_getimg (hdr, i, &data, &len); | |
363 | printf (" Image %d: %8ld Bytes = ", i, len); | |
364 | print_size (len, "\n"); | |
365 | } | |
366 | } | |
367 | } | |
368 | ||
fff888a1 MB |
369 | /** |
370 | * gen_image_get_format - get image format type | |
371 | * @img_addr: image start address | |
372 | * | |
373 | * gen_image_get_format() checks whether provided address points to a valid | |
374 | * legacy or FIT image. | |
375 | * | |
4efbe9db MB |
376 | * New uImage format and FDT blob are based on a libfdt. FDT blob |
377 | * may be passed directly or embedded in a FIT image. In both situations | |
378 | * gen_image_get_format() must be able to dectect libfdt header. | |
379 | * | |
fff888a1 MB |
380 | * returns: |
381 | * image format type or IMAGE_FORMAT_INVALID if no image is present | |
382 | */ | |
383 | int gen_image_get_format (void *img_addr) | |
384 | { | |
385 | ulong format = IMAGE_FORMAT_INVALID; | |
386 | image_header_t *hdr; | |
4efbe9db | 387 | #if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT) |
fff888a1 MB |
388 | char *fit_hdr; |
389 | #endif | |
390 | ||
391 | hdr = (image_header_t *)img_addr; | |
392 | if (image_check_magic(hdr)) | |
393 | format = IMAGE_FORMAT_LEGACY; | |
4efbe9db | 394 | #if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT) |
fff888a1 MB |
395 | else { |
396 | fit_hdr = (char *)img_addr; | |
397 | if (fdt_check_header (fit_hdr) == 0) | |
398 | format = IMAGE_FORMAT_FIT; | |
399 | } | |
400 | #endif | |
401 | ||
402 | return format; | |
403 | } | |
404 | ||
405 | /** | |
406 | * gen_get_image - get image from special storage (if necessary) | |
407 | * @img_addr: image start address | |
408 | * | |
409 | * gen_get_image() checks if provided image start adddress is located | |
410 | * in a dataflash storage. If so, image is moved to a system RAM memory. | |
411 | * | |
412 | * returns: | |
413 | * image start address after possible relocation from special storage | |
414 | */ | |
415 | ulong gen_get_image (ulong img_addr) | |
416 | { | |
6f0f9dfc | 417 | ulong ram_addr = img_addr; |
fff888a1 MB |
418 | |
419 | #ifdef CONFIG_HAS_DATAFLASH | |
6f0f9dfc MB |
420 | ulong h_size, d_size; |
421 | ||
fff888a1 | 422 | if (addr_dataflash (img_addr)){ |
6f0f9dfc | 423 | /* ger RAM address */ |
fff888a1 | 424 | ram_addr = CFG_LOAD_ADDR; |
6f0f9dfc MB |
425 | |
426 | /* get header size */ | |
427 | h_size = image_get_header_size (); | |
428 | #if defined(CONFIG_FIT) | |
429 | if (sizeof(struct fdt_header) > h_size) | |
430 | h_size = sizeof(struct fdt_header); | |
431 | #endif | |
432 | ||
433 | /* read in header */ | |
fff888a1 MB |
434 | debug (" Reading image header from dataflash address " |
435 | "%08lx to RAM address %08lx\n", img_addr, ram_addr); | |
fff888a1 | 436 | |
6f0f9dfc | 437 | read_dataflash (img_addr, h_size, (char *)ram_addr); |
fff888a1 | 438 | |
6f0f9dfc MB |
439 | /* get data size */ |
440 | switch (gen_image_get_format ((void *)ram_addr)) { | |
441 | case IMAGE_FORMAT_LEGACY: | |
442 | d_size = image_get_data_size ((image_header_t *)ram_addr); | |
443 | debug (" Legacy format image found at 0x%08lx, size 0x%08lx\n", | |
444 | ram_addr, d_size); | |
445 | break; | |
fff888a1 | 446 | #if defined(CONFIG_FIT) |
6f0f9dfc MB |
447 | case IMAGE_FORMAT_FIT: |
448 | d_size = fdt_totalsize((void *)ram_addr) - h_size; | |
449 | debug (" FIT/FDT format image found at 0x%08lx, size 0x%08lx\n", | |
450 | ram_addr, d_size); | |
451 | break; | |
fff888a1 | 452 | #endif |
6f0f9dfc MB |
453 | default: |
454 | printf (" No valid image found at 0x%08lx\n", img_addr); | |
455 | return ram_addr; | |
456 | } | |
fff888a1 | 457 | |
6f0f9dfc | 458 | /* read in image data */ |
fff888a1 MB |
459 | debug (" Reading image remaining data from dataflash address " |
460 | "%08lx to RAM address %08lx\n", img_addr + h_size, | |
461 | ram_addr + h_size); | |
462 | ||
463 | read_dataflash (img_addr + h_size, d_size, | |
464 | (char *)(ram_addr + h_size)); | |
6f0f9dfc | 465 | |
fff888a1 | 466 | } |
6f0f9dfc | 467 | #endif /* CONFIG_HAS_DATAFLASH */ |
fff888a1 MB |
468 | |
469 | return ram_addr; | |
470 | } | |
471 | ||
5ad03eb3 MB |
472 | /** |
473 | * image_get_ramdisk - get and verify ramdisk image | |
474 | * @cmdtp: command table pointer | |
475 | * @flag: command flag | |
476 | * @argc: command argument count | |
477 | * @argv: command argument list | |
478 | * @rd_addr: ramdisk image start address | |
479 | * @arch: expected ramdisk architecture | |
480 | * @verify: checksum verification flag | |
481 | * | |
482 | * image_get_ramdisk() returns a pointer to the verified ramdisk image | |
483 | * header. Routine receives image start address and expected architecture | |
484 | * flag. Verification done covers data and header integrity and os/type/arch | |
485 | * fields checking. | |
486 | * | |
487 | * If dataflash support is enabled routine checks for dataflash addresses | |
488 | * and handles required dataflash reads. | |
489 | * | |
490 | * returns: | |
491 | * pointer to a ramdisk image header, if image was found and valid | |
274cea2b | 492 | * otherwise, return NULL |
5ad03eb3 | 493 | */ |
8a5ea3e6 | 494 | static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag, |
5ad03eb3 MB |
495 | int argc, char *argv[], |
496 | ulong rd_addr, uint8_t arch, int verify) | |
497 | { | |
498 | image_header_t *rd_hdr; | |
499 | ||
500 | show_boot_progress (9); | |
5ad03eb3 MB |
501 | rd_hdr = (image_header_t *)rd_addr; |
502 | ||
503 | if (!image_check_magic (rd_hdr)) { | |
504 | puts ("Bad Magic Number\n"); | |
505 | show_boot_progress (-10); | |
274cea2b | 506 | return NULL; |
5ad03eb3 MB |
507 | } |
508 | ||
509 | if (!image_check_hcrc (rd_hdr)) { | |
510 | puts ("Bad Header Checksum\n"); | |
511 | show_boot_progress (-11); | |
274cea2b | 512 | return NULL; |
5ad03eb3 MB |
513 | } |
514 | ||
515 | show_boot_progress (10); | |
2242f536 | 516 | image_print_contents (rd_hdr); |
5ad03eb3 | 517 | |
5ad03eb3 MB |
518 | if (verify) { |
519 | puts(" Verifying Checksum ... "); | |
520 | if (!image_check_dcrc_wd (rd_hdr, CHUNKSZ)) { | |
521 | puts ("Bad Data CRC\n"); | |
522 | show_boot_progress (-12); | |
274cea2b | 523 | return NULL; |
5ad03eb3 MB |
524 | } |
525 | puts("OK\n"); | |
526 | } | |
527 | ||
528 | show_boot_progress (11); | |
529 | ||
530 | if (!image_check_os (rd_hdr, IH_OS_LINUX) || | |
531 | !image_check_arch (rd_hdr, arch) || | |
532 | !image_check_type (rd_hdr, IH_TYPE_RAMDISK)) { | |
533 | printf ("No Linux %s Ramdisk Image\n", | |
534 | image_get_arch_name(arch)); | |
535 | show_boot_progress (-13); | |
274cea2b | 536 | return NULL; |
5ad03eb3 MB |
537 | } |
538 | ||
539 | return rd_hdr; | |
540 | } | |
541 | ||
542 | /** | |
543 | * get_ramdisk - main ramdisk handling routine | |
544 | * @cmdtp: command table pointer | |
545 | * @flag: command flag | |
546 | * @argc: command argument count | |
547 | * @argv: command argument list | |
8a5ea3e6 | 548 | * @images: pointer to the bootm images structure |
5ad03eb3 MB |
549 | * @arch: expected ramdisk architecture |
550 | * @rd_start: pointer to a ulong variable, will hold ramdisk start address | |
551 | * @rd_end: pointer to a ulong variable, will hold ramdisk end | |
552 | * | |
553 | * get_ramdisk() is responsible for finding a valid ramdisk image. | |
554 | * Curently supported are the following ramdisk sources: | |
555 | * - multicomponent kernel/ramdisk image, | |
556 | * - commandline provided address of decicated ramdisk image. | |
557 | * | |
558 | * returns: | |
559 | * rd_start and rd_end are set to ramdisk start/end addresses if | |
560 | * ramdisk image is found and valid | |
561 | * rd_start and rd_end are set to 0 if no ramdisk exists | |
274cea2b | 562 | * return 1 if ramdisk image is found but corrupted |
5ad03eb3 | 563 | */ |
274cea2b | 564 | int get_ramdisk (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], |
8a5ea3e6 | 565 | bootm_headers_t *images, uint8_t arch, |
5ad03eb3 MB |
566 | ulong *rd_start, ulong *rd_end) |
567 | { | |
d5934ad7 | 568 | ulong rd_addr, rd_load; |
5ad03eb3 MB |
569 | ulong rd_data, rd_len; |
570 | image_header_t *rd_hdr; | |
d5934ad7 MB |
571 | #if defined(CONFIG_FIT) |
572 | void *fit_hdr; | |
573 | const char *fit_uname_config = NULL; | |
574 | const char *fit_uname_ramdisk = NULL; | |
575 | ulong default_addr; | |
576 | #endif | |
5ad03eb3 | 577 | |
d5934ad7 MB |
578 | /* |
579 | * Look for a '-' which indicates to ignore the | |
580 | * ramdisk argument | |
581 | */ | |
582 | if ((argc >= 3) && (strcmp(argv[2], "-") == 0)) { | |
583 | debug ("## Skipping init Ramdisk\n"); | |
584 | rd_len = rd_data = 0; | |
585 | } else if (argc >= 3) { | |
586 | #if defined(CONFIG_FIT) | |
5ad03eb3 | 587 | /* |
d5934ad7 MB |
588 | * If the init ramdisk comes from the FIT image and the FIT image |
589 | * address is omitted in the command line argument, try to use | |
590 | * os FIT image address or default load address. | |
5ad03eb3 | 591 | */ |
d5934ad7 MB |
592 | if (images->fit_uname_os) |
593 | default_addr = (ulong)images->fit_hdr_os; | |
594 | else | |
595 | default_addr = load_addr; | |
596 | ||
597 | if (fit_parse_conf (argv[2], default_addr, | |
598 | &rd_addr, &fit_uname_config)) { | |
599 | debug ("* ramdisk: config '%s' from image at 0x%08lx\n", | |
600 | fit_uname_config, rd_addr); | |
601 | } else if (fit_parse_subimage (argv[2], default_addr, | |
602 | &rd_addr, &fit_uname_ramdisk)) { | |
603 | debug ("* ramdisk: subimage '%s' from image at 0x%08lx\n", | |
604 | fit_uname_ramdisk, rd_addr); | |
605 | } else | |
606 | #endif | |
607 | { | |
608 | rd_addr = simple_strtoul(argv[2], NULL, 16); | |
609 | debug ("* ramdisk: cmdline image address = 0x%08lx\n", | |
5ad03eb3 | 610 | rd_addr); |
d5934ad7 MB |
611 | } |
612 | ||
613 | /* copy from dataflash if needed */ | |
614 | printf ("## Loading init Ramdisk Image at %08lx ...\n", | |
615 | rd_addr); | |
616 | rd_addr = gen_get_image (rd_addr); | |
617 | ||
618 | /* | |
619 | * Check if there is an initrd image at the | |
620 | * address provided in the second bootm argument | |
621 | * check image type, for FIT images get FIT node. | |
622 | */ | |
623 | switch (gen_image_get_format ((void *)rd_addr)) { | |
624 | case IMAGE_FORMAT_LEGACY: | |
625 | ||
626 | debug ("* ramdisk: legacy format image\n"); | |
5ad03eb3 MB |
627 | |
628 | rd_hdr = image_get_ramdisk (cmdtp, flag, argc, argv, | |
8a5ea3e6 | 629 | rd_addr, arch, images->verify); |
5ad03eb3 | 630 | |
274cea2b KG |
631 | if (rd_hdr == NULL) { |
632 | *rd_start = 0; | |
633 | *rd_end = 0; | |
634 | return 1; | |
635 | } | |
636 | ||
5ad03eb3 MB |
637 | rd_data = image_get_data (rd_hdr); |
638 | rd_len = image_get_data_size (rd_hdr); | |
d5934ad7 MB |
639 | rd_load = image_get_load (rd_hdr); |
640 | break; | |
641 | #if defined(CONFIG_FIT) | |
642 | case IMAGE_FORMAT_FIT: | |
643 | fit_hdr = (void *)rd_addr; | |
644 | debug ("* ramdisk: FIT format image\n"); | |
645 | fit_unsupported_reset ("ramdisk"); | |
274cea2b | 646 | return 1; |
d5934ad7 MB |
647 | #endif |
648 | default: | |
649 | printf ("Wrong Image Format for %s command\n", | |
650 | cmdtp->name); | |
651 | rd_data = rd_len = 0; | |
652 | } | |
5ad03eb3 MB |
653 | |
654 | #if defined(CONFIG_B2) || defined(CONFIG_EVB4510) || defined(CONFIG_ARMADILLO) | |
d5934ad7 MB |
655 | /* |
656 | * We need to copy the ramdisk to SRAM to let Linux boot | |
657 | */ | |
658 | if (rd_data) { | |
659 | memmove ((void *)rd_load, (uchar *)rd_data, rd_len); | |
660 | rd_data = rd_load; | |
5ad03eb3 | 661 | } |
d5934ad7 | 662 | #endif /* CONFIG_B2 || CONFIG_EVB4510 || CONFIG_ARMADILLO */ |
5ad03eb3 | 663 | |
d5934ad7 MB |
664 | } else if (images->legacy_hdr_valid && |
665 | image_check_type (images->legacy_hdr_os, IH_TYPE_MULTI)) { | |
5ad03eb3 | 666 | /* |
d5934ad7 MB |
667 | * Now check if we have a legacy mult-component image, |
668 | * get second entry data start address and len. | |
5ad03eb3 MB |
669 | */ |
670 | show_boot_progress (13); | |
671 | printf ("## Loading init Ramdisk from multi component " | |
d5934ad7 MB |
672 | "Image at %08lx ...\n", |
673 | (ulong)images->legacy_hdr_os); | |
674 | ||
675 | image_multi_getimg (images->legacy_hdr_os, 1, &rd_data, &rd_len); | |
5ad03eb3 MB |
676 | } else { |
677 | /* | |
678 | * no initrd image | |
679 | */ | |
680 | show_boot_progress (14); | |
681 | rd_len = rd_data = 0; | |
682 | } | |
683 | ||
684 | if (!rd_data) { | |
685 | debug ("## No init Ramdisk\n"); | |
686 | *rd_start = 0; | |
687 | *rd_end = 0; | |
688 | } else { | |
689 | *rd_start = rd_data; | |
690 | *rd_end = rd_data + rd_len; | |
691 | } | |
692 | debug (" ramdisk start = 0x%08lx, ramdisk end = 0x%08lx\n", | |
693 | *rd_start, *rd_end); | |
274cea2b KG |
694 | |
695 | return 0; | |
5ad03eb3 | 696 | } |
ceaed2b1 MB |
697 | |
698 | #if defined(CONFIG_PPC) || defined(CONFIG_M68K) | |
699 | /** | |
700 | * ramdisk_high - relocate init ramdisk | |
701 | * @rd_data: ramdisk data start address | |
702 | * @rd_len: ramdisk data length | |
ceaed2b1 MB |
703 | * @sp_limit: stack pointer limit (including BOOTMAPSZ) |
704 | * @sp: current stack pointer | |
705 | * @initrd_start: pointer to a ulong variable, will hold final init ramdisk | |
706 | * start address (after possible relocation) | |
707 | * @initrd_end: pointer to a ulong variable, will hold final init ramdisk | |
708 | * end address (after possible relocation) | |
709 | * | |
710 | * ramdisk_high() takes a relocation hint from "initrd_high" environement | |
711 | * variable and if requested ramdisk data is moved to a specified location. | |
712 | * | |
713 | * returns: | |
b6b0fe64 | 714 | * - initrd_start and initrd_end are set to final (after relocation) ramdisk |
ceaed2b1 | 715 | * start/end addresses if ramdisk image start and len were provided |
b6b0fe64 MB |
716 | * otherwise set initrd_start and initrd_end set to zeros |
717 | * - returns new allc_current, next free address below BOOTMAPSZ | |
ceaed2b1 | 718 | */ |
b6b0fe64 | 719 | ulong ramdisk_high (ulong alloc_current, ulong rd_data, ulong rd_len, |
a6612bdf | 720 | ulong sp_limit, ulong sp, |
b6b0fe64 | 721 | ulong *initrd_start, ulong *initrd_end) |
ceaed2b1 MB |
722 | { |
723 | char *s; | |
724 | ulong initrd_high; | |
725 | int initrd_copy_to_ram = 1; | |
b6b0fe64 | 726 | ulong new_alloc_current = alloc_current; |
ceaed2b1 MB |
727 | |
728 | if ((s = getenv ("initrd_high")) != NULL) { | |
729 | /* a value of "no" or a similar string will act like 0, | |
730 | * turning the "load high" feature off. This is intentional. | |
731 | */ | |
732 | initrd_high = simple_strtoul (s, NULL, 16); | |
733 | if (initrd_high == ~0) | |
734 | initrd_copy_to_ram = 0; | |
735 | } else { | |
736 | /* not set, no restrictions to load high */ | |
737 | initrd_high = ~0; | |
738 | } | |
739 | ||
740 | #ifdef CONFIG_LOGBUFFER | |
741 | /* Prevent initrd from overwriting logbuffer */ | |
a6612bdf KG |
742 | if (initrd_high < (gd->bd->bi_memsize - LOGBUFF_LEN - LOGBUFF_OVERHEAD)) |
743 | initrd_high = gd->bd->bi_memsize - LOGBUFF_LEN - LOGBUFF_OVERHEAD; | |
744 | debug ("## Logbuffer at 0x%08lx ", gd->bd->bi_memsize - LOGBUFF_LEN); | |
ceaed2b1 MB |
745 | #endif |
746 | debug ("## initrd_high = 0x%08lx, copy_to_ram = %d\n", | |
747 | initrd_high, initrd_copy_to_ram); | |
748 | ||
749 | if (rd_data) { | |
750 | if (!initrd_copy_to_ram) { /* zero-copy ramdisk support */ | |
751 | debug (" in-place initrd\n"); | |
752 | *initrd_start = rd_data; | |
753 | *initrd_end = rd_data + rd_len; | |
754 | } else { | |
b6b0fe64 MB |
755 | new_alloc_current = alloc_current - rd_len; |
756 | *initrd_start = new_alloc_current; | |
ceaed2b1 MB |
757 | *initrd_start &= ~(4096 - 1); /* align on page */ |
758 | ||
759 | if (initrd_high) { | |
760 | ulong nsp; | |
761 | ||
762 | /* | |
763 | * the inital ramdisk does not need to be within | |
764 | * CFG_BOOTMAPSZ as it is not accessed until after | |
765 | * the mm system is initialised. | |
766 | * | |
767 | * do the stack bottom calculation again and see if | |
768 | * the initrd will fit just below the monitor stack | |
769 | * bottom without overwriting the area allocated | |
770 | * for command line args and board info. | |
771 | */ | |
772 | nsp = sp; | |
773 | nsp -= 2048; /* just to be sure */ | |
774 | nsp &= ~0xF; | |
775 | ||
776 | if (nsp > initrd_high) /* limit as specified */ | |
777 | nsp = initrd_high; | |
778 | ||
779 | nsp -= rd_len; | |
780 | nsp &= ~(4096 - 1); /* align on page */ | |
781 | ||
b6b0fe64 | 782 | if (nsp >= sp_limit) { |
ceaed2b1 | 783 | *initrd_start = nsp; |
b6b0fe64 MB |
784 | new_alloc_current = alloc_current; |
785 | } | |
ceaed2b1 MB |
786 | } |
787 | ||
788 | show_boot_progress (12); | |
789 | ||
790 | *initrd_end = *initrd_start + rd_len; | |
791 | printf (" Loading Ramdisk to %08lx, end %08lx ... ", | |
792 | *initrd_start, *initrd_end); | |
793 | ||
794 | memmove_wd((void *)*initrd_start, | |
795 | (void *)rd_data, rd_len, CHUNKSZ); | |
796 | ||
797 | puts ("OK\n"); | |
798 | } | |
799 | } else { | |
800 | *initrd_start = 0; | |
801 | *initrd_end = 0; | |
802 | } | |
803 | debug (" ramdisk load start = 0x%08lx, ramdisk load end = 0x%08lx\n", | |
804 | *initrd_start, *initrd_end); | |
b6b0fe64 MB |
805 | |
806 | return new_alloc_current; | |
807 | } | |
808 | ||
809 | /** | |
810 | * get_boot_sp_limit - calculate stack pointer limit | |
811 | * @sp: current stack pointer | |
812 | * | |
813 | * get_boot_sp_limit() takes current stack pointer adrress and calculates | |
814 | * stack pointer limit, below which kernel boot data (cmdline, board info, | |
815 | * etc.) will be allocated. | |
816 | * | |
817 | * returns: | |
818 | * stack pointer limit | |
819 | */ | |
820 | ulong get_boot_sp_limit(ulong sp) | |
821 | { | |
822 | ulong sp_limit = sp; | |
823 | ||
824 | sp_limit -= 2048; /* just to be sure */ | |
825 | ||
826 | /* make sure sp_limit is within kernel mapped space */ | |
827 | if (sp_limit > CFG_BOOTMAPSZ) | |
828 | sp_limit = CFG_BOOTMAPSZ; | |
829 | sp_limit &= ~0xF; | |
830 | ||
831 | return sp_limit; | |
832 | } | |
833 | ||
834 | /** | |
835 | * get_boot_cmdline - allocate and initialize kernel cmdline | |
836 | * @alloc_current: current boot allocation address (counting down | |
837 | * from sp_limit) | |
838 | * @cmd_start: pointer to a ulong variable, will hold cmdline start | |
839 | * @cmd_end: pointer to a ulong variable, will hold cmdline end | |
840 | * | |
841 | * get_boot_cmdline() allocates space for kernel command line below | |
842 | * provided alloc_current address. If "bootargs" U-boot environemnt | |
843 | * variable is present its contents is copied to allocated kernel | |
844 | * command line. | |
845 | * | |
846 | * returns: | |
847 | * alloc_current after cmdline allocation | |
848 | */ | |
849 | ulong get_boot_cmdline (ulong alloc_current, ulong *cmd_start, ulong *cmd_end) | |
850 | { | |
851 | char *cmdline; | |
852 | char *s; | |
853 | ||
854 | cmdline = (char *)((alloc_current - CFG_BARGSIZE) & ~0xF); | |
855 | ||
856 | if ((s = getenv("bootargs")) == NULL) | |
857 | s = ""; | |
858 | ||
859 | strcpy(cmdline, s); | |
860 | ||
861 | *cmd_start = (ulong) & cmdline[0]; | |
862 | *cmd_end = *cmd_start + strlen(cmdline); | |
863 | ||
864 | debug ("## cmdline at 0x%08lx ... 0x%08lx\n", *cmd_start, *cmd_end); | |
865 | ||
866 | return (ulong)cmdline; | |
867 | } | |
868 | ||
869 | /** | |
870 | * get_boot_kbd - allocate and initialize kernel copy of board info | |
871 | * @alloc_current: current boot allocation address (counting down | |
872 | * from sp_limit) | |
873 | * @kbd: double pointer to board info data | |
874 | * | |
875 | * get_boot_kbd() - allocates space for kernel copy of board info data. | |
876 | * Space is allocated below provided alloc_current address and kernel | |
877 | * board info is initialized with the current u-boot board info data. | |
878 | * | |
879 | * returns: | |
880 | * alloc_current after kbd allocation | |
881 | */ | |
882 | ulong get_boot_kbd (ulong alloc_current, bd_t **kbd) | |
883 | { | |
884 | *kbd = (bd_t *) (((ulong)alloc_current - sizeof(bd_t)) & ~0xF); | |
885 | **kbd = *(gd->bd); | |
886 | ||
887 | debug ("## kernel board info at 0x%08lx\n", (ulong)*kbd); | |
888 | ||
889 | #if defined(DEBUG) && defined(CONFIG_CMD_BDI) | |
890 | do_bdinfo(NULL, 0, 0, NULL); | |
891 | #endif | |
892 | ||
893 | return (ulong)*kbd; | |
ceaed2b1 MB |
894 | } |
895 | #endif /* CONFIG_PPC || CONFIG_M68K */ | |
5ad03eb3 | 896 | |
f50433d6 MB |
897 | #if defined(CONFIG_FIT) |
898 | /*****************************************************************************/ | |
899 | /* New uImage format routines */ | |
900 | /*****************************************************************************/ | |
901 | static int fit_parse_spec (const char *spec, char sepc, ulong addr_curr, | |
902 | ulong *addr, const char **name) | |
903 | { | |
904 | const char *sep; | |
905 | ||
906 | *addr = addr_curr; | |
907 | *name = NULL; | |
908 | ||
909 | sep = strchr (spec, sepc); | |
910 | if (sep) { | |
911 | if (sep - spec > 0) | |
912 | *addr = simple_strtoul (spec, NULL, 16); | |
913 | ||
914 | *name = sep + 1; | |
915 | return 1; | |
916 | } | |
917 | ||
918 | return 0; | |
919 | } | |
920 | ||
921 | /** | |
922 | * fit_parse_conf - parse FIT configuration spec | |
923 | * @spec: input string, containing configuration spec | |
924 | * @add_curr: current image address (to be used as a possible default) | |
925 | * @addr: pointer to a ulong variable, will hold FIT image address of a given | |
926 | * configuration | |
927 | * @conf_name double pointer to a char, will hold pointer to a configuration | |
928 | * unit name | |
929 | * | |
930 | * fit_parse_conf() expects configuration spec in the for of [<addr>]#<conf>, | |
931 | * where <addr> is a FIT image address that contains configuration | |
932 | * with a <conf> unit name. | |
933 | * | |
934 | * Address part is optional, and if omitted default add_curr will | |
935 | * be used instead. | |
936 | * | |
937 | * returns: | |
938 | * 1 if spec is a valid configuration string, | |
939 | * addr and conf_name are set accordingly | |
940 | * 0 otherwise | |
941 | */ | |
942 | inline int fit_parse_conf (const char *spec, ulong addr_curr, | |
943 | ulong *addr, const char **conf_name) | |
944 | { | |
945 | return fit_parse_spec (spec, '#', addr_curr, addr, conf_name); | |
946 | } | |
947 | ||
948 | /** | |
949 | * fit_parse_subimage - parse FIT subimage spec | |
950 | * @spec: input string, containing subimage spec | |
951 | * @add_curr: current image address (to be used as a possible default) | |
952 | * @addr: pointer to a ulong variable, will hold FIT image address of a given | |
953 | * subimage | |
954 | * @image_name: double pointer to a char, will hold pointer to a subimage name | |
955 | * | |
956 | * fit_parse_subimage() expects subimage spec in the for of | |
957 | * [<addr>]:<subimage>, where <addr> is a FIT image address that contains | |
958 | * subimage with a <subimg> unit name. | |
959 | * | |
960 | * Address part is optional, and if omitted default add_curr will | |
961 | * be used instead. | |
962 | * | |
963 | * returns: | |
964 | * 1 if spec is a valid subimage string, | |
965 | * addr and image_name are set accordingly | |
966 | * 0 otherwise | |
967 | */ | |
968 | inline int fit_parse_subimage (const char *spec, ulong addr_curr, | |
969 | ulong *addr, const char **image_name) | |
970 | { | |
971 | return fit_parse_spec (spec, ':', addr_curr, addr, image_name); | |
972 | } | |
d5934ad7 | 973 | |
f50433d6 MB |
974 | #endif /* CONFIG_FIT */ |
975 | ||
b6b0fe64 | 976 | #endif /* USE_HOSTCC */ |