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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
44d3a306 SG |
2 | /* |
3 | * Copyright (c) 2013, Google Inc. | |
4 | * | |
5 | * (C) Copyright 2008 Semihalf | |
6 | * | |
7 | * (C) Copyright 2000-2006 | |
8 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
44d3a306 SG |
9 | */ |
10 | ||
11 | #include <common.h> | |
12 | #include <fdt_support.h> | |
13 | #include <errno.h> | |
14 | #include <image.h> | |
b08c8c48 | 15 | #include <linux/libfdt.h> |
0eb25b61 | 16 | #include <mapmem.h> |
44d3a306 SG |
17 | #include <asm/io.h> |
18 | ||
19 | #ifndef CONFIG_SYS_FDT_PAD | |
20 | #define CONFIG_SYS_FDT_PAD 0x3000 | |
21 | #endif | |
22 | ||
c960a68e MY |
23 | /* adding a ramdisk needs 0x44 bytes in version 2008.10 */ |
24 | #define FDT_RAMDISK_OVERHEAD 0x80 | |
25 | ||
44d3a306 SG |
26 | DECLARE_GLOBAL_DATA_PTR; |
27 | ||
28 | static void fdt_error(const char *msg) | |
29 | { | |
30 | puts("ERROR: "); | |
31 | puts(msg); | |
32 | puts(" - must RESET the board to recover.\n"); | |
33 | } | |
34 | ||
21d29f7f | 35 | #if defined(CONFIG_IMAGE_FORMAT_LEGACY) |
44d3a306 SG |
36 | static const image_header_t *image_get_fdt(ulong fdt_addr) |
37 | { | |
38 | const image_header_t *fdt_hdr = map_sysmem(fdt_addr, 0); | |
39 | ||
40 | image_print_contents(fdt_hdr); | |
41 | ||
42 | puts(" Verifying Checksum ... "); | |
43 | if (!image_check_hcrc(fdt_hdr)) { | |
44 | fdt_error("fdt header checksum invalid"); | |
45 | return NULL; | |
46 | } | |
47 | ||
48 | if (!image_check_dcrc(fdt_hdr)) { | |
49 | fdt_error("fdt checksum invalid"); | |
50 | return NULL; | |
51 | } | |
52 | puts("OK\n"); | |
53 | ||
54 | if (!image_check_type(fdt_hdr, IH_TYPE_FLATDT)) { | |
55 | fdt_error("uImage is not a fdt"); | |
56 | return NULL; | |
57 | } | |
58 | if (image_get_comp(fdt_hdr) != IH_COMP_NONE) { | |
59 | fdt_error("uImage is compressed"); | |
60 | return NULL; | |
61 | } | |
2f0877c7 | 62 | if (fdt_check_header((void *)image_get_data(fdt_hdr)) != 0) { |
44d3a306 SG |
63 | fdt_error("uImage data is not a fdt"); |
64 | return NULL; | |
65 | } | |
66 | return fdt_hdr; | |
67 | } | |
21d29f7f | 68 | #endif |
44d3a306 SG |
69 | |
70 | /** | |
71 | * boot_fdt_add_mem_rsv_regions - Mark the memreserve sections as unusable | |
72 | * @lmb: pointer to lmb handle, will be used for memory mgmt | |
73 | * @fdt_blob: pointer to fdt blob base address | |
74 | * | |
75 | * Adds the memreserve regions in the dtb to the lmb block. Adding the | |
76 | * memreserve regions prevents u-boot from using them to store the initrd | |
77 | * or the fdt blob. | |
78 | */ | |
79 | void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob) | |
80 | { | |
81 | uint64_t addr, size; | |
82 | int i, total; | |
83 | ||
84 | if (fdt_check_header(fdt_blob) != 0) | |
85 | return; | |
86 | ||
87 | total = fdt_num_mem_rsv(fdt_blob); | |
88 | for (i = 0; i < total; i++) { | |
89 | if (fdt_get_mem_rsv(fdt_blob, i, &addr, &size) != 0) | |
90 | continue; | |
91 | printf(" reserving fdt memory region: addr=%llx size=%llx\n", | |
92 | (unsigned long long)addr, (unsigned long long)size); | |
93 | lmb_reserve(lmb, addr, size); | |
94 | } | |
95 | } | |
96 | ||
97 | /** | |
98 | * boot_relocate_fdt - relocate flat device tree | |
99 | * @lmb: pointer to lmb handle, will be used for memory mgmt | |
100 | * @of_flat_tree: pointer to a char* variable, will hold fdt start address | |
101 | * @of_size: pointer to a ulong variable, will hold fdt length | |
102 | * | |
103 | * boot_relocate_fdt() allocates a region of memory within the bootmap and | |
104 | * relocates the of_flat_tree into that region, even if the fdt is already in | |
105 | * the bootmap. It also expands the size of the fdt by CONFIG_SYS_FDT_PAD | |
106 | * bytes. | |
107 | * | |
108 | * of_flat_tree and of_size are set to final (after relocation) values | |
109 | * | |
110 | * returns: | |
111 | * 0 - success | |
112 | * 1 - failure | |
113 | */ | |
114 | int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size) | |
115 | { | |
116 | void *fdt_blob = *of_flat_tree; | |
117 | void *of_start = NULL; | |
118 | char *fdt_high; | |
119 | ulong of_len = 0; | |
120 | int err; | |
121 | int disable_relocation = 0; | |
122 | ||
123 | /* nothing to do */ | |
124 | if (*of_size == 0) | |
125 | return 0; | |
126 | ||
127 | if (fdt_check_header(fdt_blob) != 0) { | |
128 | fdt_error("image is not a fdt"); | |
129 | goto error; | |
130 | } | |
131 | ||
132 | /* position on a 4K boundary before the alloc_current */ | |
133 | /* Pad the FDT by a specified amount */ | |
134 | of_len = *of_size + CONFIG_SYS_FDT_PAD; | |
135 | ||
136 | /* If fdt_high is set use it to select the relocation address */ | |
00caae6d | 137 | fdt_high = env_get("fdt_high"); |
44d3a306 SG |
138 | if (fdt_high) { |
139 | void *desired_addr = (void *)simple_strtoul(fdt_high, NULL, 16); | |
140 | ||
141 | if (((ulong) desired_addr) == ~0UL) { | |
142 | /* All ones means use fdt in place */ | |
143 | of_start = fdt_blob; | |
144 | lmb_reserve(lmb, (ulong)of_start, of_len); | |
145 | disable_relocation = 1; | |
146 | } else if (desired_addr) { | |
147 | of_start = | |
148 | (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000, | |
149 | (ulong)desired_addr); | |
150 | if (of_start == NULL) { | |
151 | puts("Failed using fdt_high value for Device Tree"); | |
152 | goto error; | |
153 | } | |
154 | } else { | |
155 | of_start = | |
156 | (void *)(ulong) lmb_alloc(lmb, of_len, 0x1000); | |
157 | } | |
158 | } else { | |
159 | of_start = | |
160 | (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000, | |
723806cc SG |
161 | env_get_bootm_mapsize() |
162 | + env_get_bootm_low()); | |
44d3a306 SG |
163 | } |
164 | ||
165 | if (of_start == NULL) { | |
166 | puts("device tree - allocation error\n"); | |
167 | goto error; | |
168 | } | |
169 | ||
170 | if (disable_relocation) { | |
171 | /* | |
172 | * We assume there is space after the existing fdt to use | |
173 | * for padding | |
174 | */ | |
175 | fdt_set_totalsize(of_start, of_len); | |
176 | printf(" Using Device Tree in place at %p, end %p\n", | |
177 | of_start, of_start + of_len - 1); | |
178 | } else { | |
179 | debug("## device tree at %p ... %p (len=%ld [0x%lX])\n", | |
180 | fdt_blob, fdt_blob + *of_size - 1, of_len, of_len); | |
181 | ||
182 | printf(" Loading Device Tree to %p, end %p ... ", | |
183 | of_start, of_start + of_len - 1); | |
184 | ||
185 | err = fdt_open_into(fdt_blob, of_start, of_len); | |
186 | if (err != 0) { | |
187 | fdt_error("fdt move failed"); | |
188 | goto error; | |
189 | } | |
190 | puts("OK\n"); | |
191 | } | |
192 | ||
193 | *of_flat_tree = of_start; | |
194 | *of_size = of_len; | |
195 | ||
eaac4fb2 | 196 | set_working_fdt_addr(map_to_sysmem(*of_flat_tree)); |
44d3a306 SG |
197 | return 0; |
198 | ||
199 | error: | |
200 | return 1; | |
201 | } | |
202 | ||
44d3a306 SG |
203 | /** |
204 | * boot_get_fdt - main fdt handling routine | |
205 | * @argc: command argument count | |
206 | * @argv: command argument list | |
53f375fa | 207 | * @arch: architecture (IH_ARCH_...) |
44d3a306 SG |
208 | * @images: pointer to the bootm images structure |
209 | * @of_flat_tree: pointer to a char* variable, will hold fdt start address | |
210 | * @of_size: pointer to a ulong variable, will hold fdt length | |
211 | * | |
212 | * boot_get_fdt() is responsible for finding a valid flat device tree image. | |
213 | * Curently supported are the following ramdisk sources: | |
214 | * - multicomponent kernel/ramdisk image, | |
215 | * - commandline provided address of decicated ramdisk image. | |
216 | * | |
217 | * returns: | |
218 | * 0, if fdt image was found and valid, or skipped | |
219 | * of_flat_tree and of_size are set to fdt start address and length if | |
220 | * fdt image is found and valid | |
221 | * | |
222 | * 1, if fdt image is found but corrupted | |
223 | * of_flat_tree and of_size are set to 0 if no fdt exists | |
224 | */ | |
53f375fa | 225 | int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch, |
44d3a306 SG |
226 | bootm_headers_t *images, char **of_flat_tree, ulong *of_size) |
227 | { | |
21d29f7f | 228 | #if defined(CONFIG_IMAGE_FORMAT_LEGACY) |
44d3a306 | 229 | const image_header_t *fdt_hdr; |
21d29f7f HS |
230 | ulong load, load_end; |
231 | ulong image_start, image_data, image_end; | |
232 | #endif | |
44d3a306 SG |
233 | ulong fdt_addr; |
234 | char *fdt_blob = NULL; | |
44d3a306 | 235 | void *buf; |
73223f0e | 236 | #if CONFIG_IS_ENABLED(FIT) |
f320a4d8 | 237 | const char *fit_uname_config = images->fit_uname_cfg; |
44d3a306 SG |
238 | const char *fit_uname_fdt = NULL; |
239 | ulong default_addr; | |
44d3a306 | 240 | int fdt_noffset; |
44d3a306 | 241 | #endif |
983c72f4 | 242 | const char *select = NULL; |
48aead71 | 243 | int ok_no_fdt = 0; |
44d3a306 SG |
244 | |
245 | *of_flat_tree = NULL; | |
246 | *of_size = 0; | |
247 | ||
983c72f4 SG |
248 | if (argc > 2) |
249 | select = argv[2]; | |
250 | if (select || genimg_has_config(images)) { | |
73223f0e | 251 | #if CONFIG_IS_ENABLED(FIT) |
983c72f4 | 252 | if (select) { |
44d3a306 SG |
253 | /* |
254 | * If the FDT blob comes from the FIT image and the | |
255 | * FIT image address is omitted in the command line | |
256 | * argument, try to use ramdisk or os FIT image | |
257 | * address or default load address. | |
258 | */ | |
259 | if (images->fit_uname_rd) | |
260 | default_addr = (ulong)images->fit_hdr_rd; | |
261 | else if (images->fit_uname_os) | |
262 | default_addr = (ulong)images->fit_hdr_os; | |
263 | else | |
264 | default_addr = load_addr; | |
265 | ||
983c72f4 | 266 | if (fit_parse_conf(select, default_addr, |
44d3a306 SG |
267 | &fdt_addr, &fit_uname_config)) { |
268 | debug("* fdt: config '%s' from image at 0x%08lx\n", | |
269 | fit_uname_config, fdt_addr); | |
983c72f4 | 270 | } else if (fit_parse_subimage(select, default_addr, |
44d3a306 SG |
271 | &fdt_addr, &fit_uname_fdt)) { |
272 | debug("* fdt: subimage '%s' from image at 0x%08lx\n", | |
273 | fit_uname_fdt, fdt_addr); | |
274 | } else | |
275 | #endif | |
276 | { | |
983c72f4 | 277 | fdt_addr = simple_strtoul(select, NULL, 16); |
44d3a306 SG |
278 | debug("* fdt: cmdline image address = 0x%08lx\n", |
279 | fdt_addr); | |
280 | } | |
73223f0e | 281 | #if CONFIG_IS_ENABLED(FIT) |
44d3a306 SG |
282 | } else { |
283 | /* use FIT configuration provided in first bootm | |
284 | * command argument | |
285 | */ | |
286 | fdt_addr = map_to_sysmem(images->fit_hdr_os); | |
53f375fa SG |
287 | fdt_noffset = fit_get_node_from_config(images, |
288 | FIT_FDT_PROP, | |
289 | fdt_addr); | |
bd86ef11 | 290 | if (fdt_noffset == -ENOENT) |
44d3a306 | 291 | return 0; |
53f375fa SG |
292 | else if (fdt_noffset < 0) |
293 | return 1; | |
44d3a306 SG |
294 | } |
295 | #endif | |
44d3a306 SG |
296 | debug("## Checking for 'FDT'/'FDT Image' at %08lx\n", |
297 | fdt_addr); | |
298 | ||
44d3a306 SG |
299 | /* |
300 | * Check if there is an FDT image at the | |
301 | * address provided in the second bootm argument | |
302 | * check image type, for FIT images get a FIT node. | |
303 | */ | |
304 | buf = map_sysmem(fdt_addr, 0); | |
305 | switch (genimg_get_format(buf)) { | |
21d29f7f | 306 | #if defined(CONFIG_IMAGE_FORMAT_LEGACY) |
44d3a306 SG |
307 | case IMAGE_FORMAT_LEGACY: |
308 | /* verify fdt_addr points to a valid image header */ | |
309 | printf("## Flattened Device Tree from Legacy Image at %08lx\n", | |
310 | fdt_addr); | |
311 | fdt_hdr = image_get_fdt(fdt_addr); | |
312 | if (!fdt_hdr) | |
48aead71 | 313 | goto no_fdt; |
44d3a306 SG |
314 | |
315 | /* | |
316 | * move image data to the load address, | |
317 | * make sure we don't overwrite initial image | |
318 | */ | |
319 | image_start = (ulong)fdt_hdr; | |
320 | image_data = (ulong)image_get_data(fdt_hdr); | |
321 | image_end = image_get_image_end(fdt_hdr); | |
322 | ||
53f375fa SG |
323 | load = image_get_load(fdt_hdr); |
324 | load_end = load + image_get_data_size(fdt_hdr); | |
44d3a306 | 325 | |
53f375fa SG |
326 | if (load == image_start || |
327 | load == image_data) { | |
2ea47be0 | 328 | fdt_addr = load; |
44d3a306 SG |
329 | break; |
330 | } | |
331 | ||
53f375fa | 332 | if ((load < image_end) && (load_end > image_start)) { |
44d3a306 SG |
333 | fdt_error("fdt overwritten"); |
334 | goto error; | |
335 | } | |
336 | ||
337 | debug(" Loading FDT from 0x%08lx to 0x%08lx\n", | |
53f375fa | 338 | image_data, load); |
44d3a306 | 339 | |
53f375fa | 340 | memmove((void *)load, |
44d3a306 SG |
341 | (void *)image_data, |
342 | image_get_data_size(fdt_hdr)); | |
343 | ||
53f375fa | 344 | fdt_addr = load; |
44d3a306 | 345 | break; |
21d29f7f | 346 | #endif |
44d3a306 SG |
347 | case IMAGE_FORMAT_FIT: |
348 | /* | |
349 | * This case will catch both: new uImage format | |
350 | * (libfdt based) and raw FDT blob (also libfdt | |
351 | * based). | |
352 | */ | |
73223f0e | 353 | #if CONFIG_IS_ENABLED(FIT) |
44d3a306 SG |
354 | /* check FDT blob vs FIT blob */ |
355 | if (fit_check_format(buf)) { | |
53f375fa | 356 | ulong load, len; |
44d3a306 | 357 | |
169043d8 | 358 | fdt_noffset = boot_get_fdt_fit(images, |
53f375fa | 359 | fdt_addr, &fit_uname_fdt, |
f320a4d8 | 360 | &fit_uname_config, |
169043d8 | 361 | arch, &load, &len); |
44d3a306 | 362 | |
53f375fa | 363 | images->fit_hdr_fdt = map_sysmem(fdt_addr, 0); |
44d3a306 SG |
364 | images->fit_uname_fdt = fit_uname_fdt; |
365 | images->fit_noffset_fdt = fdt_noffset; | |
53f375fa | 366 | fdt_addr = load; |
169043d8 | 367 | |
44d3a306 SG |
368 | break; |
369 | } else | |
370 | #endif | |
371 | { | |
372 | /* | |
373 | * FDT blob | |
374 | */ | |
44d3a306 SG |
375 | debug("* fdt: raw FDT blob\n"); |
376 | printf("## Flattened Device Tree blob at %08lx\n", | |
377 | (long)fdt_addr); | |
378 | } | |
379 | break; | |
380 | default: | |
381 | puts("ERROR: Did not find a cmdline Flattened Device Tree\n"); | |
48aead71 | 382 | goto no_fdt; |
44d3a306 SG |
383 | } |
384 | ||
53f375fa SG |
385 | printf(" Booting using the fdt blob at %#08lx\n", fdt_addr); |
386 | fdt_blob = map_sysmem(fdt_addr, 0); | |
44d3a306 SG |
387 | } else if (images->legacy_hdr_valid && |
388 | image_check_type(&images->legacy_hdr_os_copy, | |
389 | IH_TYPE_MULTI)) { | |
390 | ulong fdt_data, fdt_len; | |
391 | ||
392 | /* | |
393 | * Now check if we have a legacy multi-component image, | |
394 | * get second entry data start address and len. | |
395 | */ | |
396 | printf("## Flattened Device Tree from multi component Image at %08lX\n", | |
397 | (ulong)images->legacy_hdr_os); | |
398 | ||
399 | image_multi_getimg(images->legacy_hdr_os, 2, &fdt_data, | |
400 | &fdt_len); | |
401 | if (fdt_len) { | |
402 | fdt_blob = (char *)fdt_data; | |
403 | printf(" Booting using the fdt at 0x%p\n", fdt_blob); | |
404 | ||
405 | if (fdt_check_header(fdt_blob) != 0) { | |
406 | fdt_error("image is not a fdt"); | |
407 | goto error; | |
408 | } | |
409 | ||
410 | if (fdt_totalsize(fdt_blob) != fdt_len) { | |
411 | fdt_error("fdt size != image size"); | |
412 | goto error; | |
413 | } | |
414 | } else { | |
415 | debug("## No Flattened Device Tree\n"); | |
48aead71 | 416 | goto no_fdt; |
44d3a306 SG |
417 | } |
418 | } else { | |
419 | debug("## No Flattened Device Tree\n"); | |
48aead71 | 420 | goto no_fdt; |
44d3a306 SG |
421 | } |
422 | ||
423 | *of_flat_tree = fdt_blob; | |
424 | *of_size = fdt_totalsize(fdt_blob); | |
425 | debug(" of_flat_tree at 0x%08lx size 0x%08lx\n", | |
426 | (ulong)*of_flat_tree, *of_size); | |
427 | ||
428 | return 0; | |
429 | ||
48aead71 SR |
430 | no_fdt: |
431 | ok_no_fdt = 1; | |
44d3a306 SG |
432 | error: |
433 | *of_flat_tree = NULL; | |
434 | *of_size = 0; | |
48aead71 SR |
435 | if (!select && ok_no_fdt) { |
436 | debug("Continuing to boot without FDT\n"); | |
437 | return 0; | |
438 | } | |
44d3a306 SG |
439 | return 1; |
440 | } | |
13d06981 SG |
441 | |
442 | /* | |
443 | * Verify the device tree. | |
444 | * | |
445 | * This function is called after all device tree fix-ups have been enacted, | |
446 | * so that the final device tree can be verified. The definition of "verified" | |
447 | * is up to the specific implementation. However, it generally means that the | |
448 | * addresses of some of the devices in the device tree are compared with the | |
449 | * actual addresses at which U-Boot has placed them. | |
450 | * | |
a187559e | 451 | * Returns 1 on success, 0 on failure. If 0 is returned, U-Boot will halt the |
13d06981 SG |
452 | * boot process. |
453 | */ | |
454 | __weak int ft_verify_fdt(void *fdt) | |
455 | { | |
456 | return 1; | |
457 | } | |
458 | ||
4280342a AB |
459 | __weak int arch_fixup_fdt(void *blob) |
460 | { | |
461 | return 0; | |
462 | } | |
463 | ||
13d06981 SG |
464 | int image_setup_libfdt(bootm_headers_t *images, void *blob, |
465 | int of_size, struct lmb *lmb) | |
466 | { | |
467 | ulong *initrd_start = &images->initrd_start; | |
468 | ulong *initrd_end = &images->initrd_end; | |
6f4dbc21 SG |
469 | int ret = -EPERM; |
470 | int fdt_ret; | |
13d06981 | 471 | |
10be5b5d PK |
472 | if (fdt_root(blob) < 0) { |
473 | printf("ERROR: root node setup failed\n"); | |
474 | goto err; | |
475 | } | |
bc6ed0f9 | 476 | if (fdt_chosen(blob) < 0) { |
6f4dbc21 SG |
477 | printf("ERROR: /chosen node create failed\n"); |
478 | goto err; | |
13d06981 | 479 | } |
e29607ed | 480 | if (arch_fixup_fdt(blob) < 0) { |
6f4dbc21 SG |
481 | printf("ERROR: arch-specific fdt fixup failed\n"); |
482 | goto err; | |
483 | } | |
26d61195 TR |
484 | /* Update ethernet nodes */ |
485 | fdt_fixup_ethernet(blob); | |
6f4dbc21 SG |
486 | if (IMAGE_OF_BOARD_SETUP) { |
487 | fdt_ret = ft_board_setup(blob, gd->bd); | |
488 | if (fdt_ret) { | |
489 | printf("ERROR: board-specific fdt fixup failed: %s\n", | |
490 | fdt_strerror(fdt_ret)); | |
491 | goto err; | |
492 | } | |
e29607ed | 493 | } |
c654b517 | 494 | if (IMAGE_OF_SYSTEM_SETUP) { |
d89212b7 MK |
495 | fdt_ret = ft_system_setup(blob, gd->bd); |
496 | if (fdt_ret) { | |
c654b517 SG |
497 | printf("ERROR: system-specific fdt fixup failed: %s\n", |
498 | fdt_strerror(fdt_ret)); | |
499 | goto err; | |
500 | } | |
501 | } | |
13d06981 SG |
502 | |
503 | /* Delete the old LMB reservation */ | |
dea2174d AG |
504 | if (lmb) |
505 | lmb_free(lmb, (phys_addr_t)(u32)(uintptr_t)blob, | |
506 | (phys_size_t)fdt_totalsize(blob)); | |
13d06981 | 507 | |
ef476836 | 508 | ret = fdt_shrink_to_minimum(blob, 0); |
13d06981 | 509 | if (ret < 0) |
6f4dbc21 | 510 | goto err; |
13d06981 SG |
511 | of_size = ret; |
512 | ||
513 | if (*initrd_start && *initrd_end) { | |
514 | of_size += FDT_RAMDISK_OVERHEAD; | |
515 | fdt_set_totalsize(blob, of_size); | |
516 | } | |
517 | /* Create a new LMB reservation */ | |
dea2174d AG |
518 | if (lmb) |
519 | lmb_reserve(lmb, (ulong)blob, of_size); | |
13d06981 | 520 | |
dbe963ae | 521 | fdt_initrd(blob, *initrd_start, *initrd_end); |
13d06981 | 522 | if (!ft_verify_fdt(blob)) |
6f4dbc21 | 523 | goto err; |
13d06981 | 524 | |
7c387646 | 525 | #if defined(CONFIG_SOC_KEYSTONE) |
00c200f1 VA |
526 | if (IMAGE_OF_BOARD_SETUP) |
527 | ft_board_setup_ex(blob, gd->bd); | |
528 | #endif | |
529 | ||
13d06981 | 530 | return 0; |
6f4dbc21 SG |
531 | err: |
532 | printf(" - must RESET the board to recover.\n\n"); | |
533 | ||
534 | return ret; | |
13d06981 | 535 | } |