1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2010
4 * Texas Instruments, <www.ti.com>
5 *
6 * Aneesh V <aneesh@ti.com>
7 */
8
9 #include <common.h>
10 #include <bloblist.h>
11 #include <binman_sym.h>
12 #include <bootstage.h>
13 #include <dm.h>
14 #include <handoff.h>
15 #include <hang.h>
16 #include <init.h>
17 #include <irq_func.h>
18 #include <log.h>
19 #include <mapmem.h>
20 #include <serial.h>
21 #include <spl.h>
22 #include <asm/global_data.h>
23 #include <asm/u-boot.h>
24 #include <nand.h>
25 #include <fat.h>
26 #include <u-boot/crc.h>
27 #include <version.h>
28 #include <image.h>
29 #include <malloc.h>
30 #include <mapmem.h>
31 #include <dm/root.h>
32 #include <linux/compiler.h>
33 #include <fdt_support.h>
34 #include <bootcount.h>
35 #include <wdt.h>
36
37 DECLARE_GLOBAL_DATA_PTR;
38
39 #ifndef CONFIG_SYS_UBOOT_START
40 #define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE
41 #endif
42 #ifndef CONFIG_SYS_MONITOR_LEN
43 /* Unknown U-Boot size, let's assume it will not be more than 200 KB */
44 #define CONFIG_SYS_MONITOR_LEN (200 * 1024)
45 #endif
46
47 u32 *boot_params_ptr = NULL;
48
49 /* See spl.h for information about this */
50 binman_sym_declare(ulong, u_boot_any, image_pos);
51 binman_sym_declare(ulong, u_boot_any, size);
52
53 #ifdef CONFIG_TPL
54 binman_sym_declare(ulong, spl, image_pos);
55 binman_sym_declare(ulong, spl, size);
56 #endif
57
58 /* Define board data structure */
59 static struct bd_info bdata __attribute__ ((section(".data")));
60
61 /*
62 * Board-specific Platform code can reimplement show_boot_progress () if needed
63 */
show_boot_progress(int val)64 __weak void show_boot_progress(int val) {}
65
66 #if defined(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) || \
67 defined(CONFIG_SPL_ATF)
68 /* weak, default platform-specific function to initialize dram banks */
dram_init_banksize(void)69 __weak int dram_init_banksize(void)
70 {
71 return 0;
72 }
73 #endif
74
75 /*
76 * Default function to determine if u-boot or the OS should
77 * be started. This implementation always returns 1.
78 *
79 * Please implement your own board specific funcion to do this.
80 *
81 * RETURN
82 * 0 to not start u-boot
83 * positive if u-boot should start
84 */
85 #ifdef CONFIG_SPL_OS_BOOT
spl_start_uboot(void)86 __weak int spl_start_uboot(void)
87 {
88 puts(SPL_TPL_PROMPT
89 "Please implement spl_start_uboot() for your board\n");
90 puts(SPL_TPL_PROMPT "Direct Linux boot not active!\n");
91 return 1;
92 }
93
94 /*
95 * Weak default function for arch specific zImage check. Return zero
96 * and fill start and end address if image is recognized.
97 */
bootz_setup(ulong image,ulong * start,ulong * end)98 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
99 {
100 return 1;
101 }
102 #endif
103
104 /* Weak default function for arch/board-specific fixups to the spl_image_info */
spl_perform_fixups(struct spl_image_info * spl_image)105 void __weak spl_perform_fixups(struct spl_image_info *spl_image)
106 {
107 }
108
spl_fixup_fdt(void * fdt_blob)109 void spl_fixup_fdt(void *fdt_blob)
110 {
111 #if defined(CONFIG_SPL_OF_LIBFDT)
112 int err;
113
114 if (!fdt_blob)
115 return;
116
117 err = fdt_check_header(fdt_blob);
118 if (err < 0) {
119 printf("fdt_root: %s\n", fdt_strerror(err));
120 return;
121 }
122
123 /* fixup the memory dt node */
124 err = fdt_shrink_to_minimum(fdt_blob, 0);
125 if (err == 0) {
126 printf(SPL_TPL_PROMPT "fdt_shrink_to_minimum err - %d\n", err);
127 return;
128 }
129
130 err = arch_fixup_fdt(fdt_blob);
131 if (err) {
132 printf(SPL_TPL_PROMPT "arch_fixup_fdt err - %d\n", err);
133 return;
134 }
135 #endif
136 }
137
spl_get_image_pos(void)138 ulong spl_get_image_pos(void)
139 {
140 return spl_phase() == PHASE_TPL ?
141 binman_sym(ulong, spl, image_pos) :
142 binman_sym(ulong, u_boot_any, image_pos);
143 }
144
spl_get_image_size(void)145 ulong spl_get_image_size(void)
146 {
147 return spl_phase() == PHASE_TPL ?
148 binman_sym(ulong, spl, size) :
149 binman_sym(ulong, u_boot_any, size);
150 }
151
spl_get_image_text_base(void)152 ulong spl_get_image_text_base(void)
153 {
154 return spl_phase() == PHASE_TPL ? CONFIG_SPL_TEXT_BASE :
155 CONFIG_SYS_TEXT_BASE;
156 }
157
158 /*
159 * Weak default function for board specific cleanup/preparation before
160 * Linux boot. Some boards/platforms might not need it, so just provide
161 * an empty stub here.
162 */
spl_board_prepare_for_linux(void)163 __weak void spl_board_prepare_for_linux(void)
164 {
165 /* Nothing to do! */
166 }
167
spl_board_prepare_for_boot(void)168 __weak void spl_board_prepare_for_boot(void)
169 {
170 /* Nothing to do! */
171 }
172
spl_get_load_buffer(ssize_t offset,size_t size)173 __weak struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
174 {
175 return map_sysmem(CONFIG_SYS_TEXT_BASE + offset, 0);
176 }
177
spl_set_header_raw_uboot(struct spl_image_info * spl_image)178 void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
179 {
180 ulong u_boot_pos = binman_sym(ulong, u_boot_any, image_pos);
181
182 spl_image->size = CONFIG_SYS_MONITOR_LEN;
183
184 /*
185 * Binman error cases: address of the end of the previous region or the
186 * start of the image's entry area (usually 0) if there is no previous
187 * region.
188 */
189 if (u_boot_pos && u_boot_pos != BINMAN_SYM_MISSING) {
190 /* Binman does not support separated entry addresses */
191 spl_image->entry_point = u_boot_pos;
192 spl_image->load_addr = u_boot_pos;
193 } else {
194 spl_image->entry_point = CONFIG_SYS_UBOOT_START;
195 spl_image->load_addr = CONFIG_SYS_TEXT_BASE;
196 }
197 spl_image->os = IH_OS_U_BOOT;
198 spl_image->name = "U-Boot";
199 }
200
201 #ifdef CONFIG_SPL_LOAD_FIT_FULL
202 /* Parse and load full fitImage in SPL */
spl_load_fit_image(struct spl_image_info * spl_image,const struct image_header * header)203 static int spl_load_fit_image(struct spl_image_info *spl_image,
204 const struct image_header *header)
205 {
206 bootm_headers_t images;
207 const char *fit_uname_config = NULL;
208 uintptr_t fdt_hack;
209 const char *uname;
210 ulong fw_data = 0, dt_data = 0, img_data = 0;
211 ulong fw_len = 0, dt_len = 0, img_len = 0;
212 int idx, conf_noffset;
213 int ret;
214
215 #ifdef CONFIG_SPL_FIT_SIGNATURE
216 images.verify = 1;
217 #endif
218 ret = fit_image_load(&images, (ulong)header,
219 NULL, &fit_uname_config,
220 IH_ARCH_DEFAULT, IH_TYPE_STANDALONE, -1,
221 FIT_LOAD_OPTIONAL, &fw_data, &fw_len);
222 if (ret >= 0) {
223 printf("DEPRECATED: 'standalone = ' property.");
224 printf("Please use either 'firmware =' or 'kernel ='\n");
225 } else {
226 ret = fit_image_load(&images, (ulong)header, NULL,
227 &fit_uname_config, IH_ARCH_DEFAULT,
228 IH_TYPE_FIRMWARE, -1, FIT_LOAD_OPTIONAL,
229 &fw_data, &fw_len);
230 }
231
232 if (ret < 0) {
233 ret = fit_image_load(&images, (ulong)header, NULL,
234 &fit_uname_config, IH_ARCH_DEFAULT,
235 IH_TYPE_KERNEL, -1, FIT_LOAD_OPTIONAL,
236 &fw_data, &fw_len);
237 }
238
239 if (ret < 0)
240 return ret;
241
242 spl_image->size = fw_len;
243 spl_image->entry_point = fw_data;
244 spl_image->load_addr = fw_data;
245 if (fit_image_get_os(header, ret, &spl_image->os))
246 spl_image->os = IH_OS_INVALID;
247 spl_image->name = genimg_get_os_name(spl_image->os);
248
249 debug(SPL_TPL_PROMPT "payload image: %32s load addr: 0x%lx size: %d\n",
250 spl_image->name, spl_image->load_addr, spl_image->size);
251
252 #ifdef CONFIG_SPL_FIT_SIGNATURE
253 images.verify = 1;
254 #endif
255 ret = fit_image_load(&images, (ulong)header, NULL, &fit_uname_config,
256 IH_ARCH_DEFAULT, IH_TYPE_FLATDT, -1,
257 FIT_LOAD_OPTIONAL, &dt_data, &dt_len);
258 if (ret >= 0) {
259 spl_image->fdt_addr = (void *)dt_data;
260
261 if (spl_image->os == IH_OS_U_BOOT) {
262 /* HACK: U-boot expects FDT at a specific address */
263 fdt_hack = spl_image->load_addr + spl_image->size;
264 fdt_hack = (fdt_hack + 3) & ~3;
265 debug("Relocating FDT to %p\n", spl_image->fdt_addr);
266 memcpy((void *)fdt_hack, spl_image->fdt_addr, dt_len);
267 }
268 }
269
270 conf_noffset = fit_conf_get_node((const void *)header,
271 fit_uname_config);
272 if (conf_noffset <= 0)
273 return 0;
274
275 for (idx = 0;
276 uname = fdt_stringlist_get((const void *)header, conf_noffset,
277 FIT_LOADABLE_PROP, idx,
278 NULL), uname;
279 idx++)
280 {
281 #ifdef CONFIG_SPL_FIT_SIGNATURE
282 images.verify = 1;
283 #endif
284 ret = fit_image_load(&images, (ulong)header,
285 &uname, &fit_uname_config,
286 IH_ARCH_DEFAULT, IH_TYPE_LOADABLE, -1,
287 FIT_LOAD_OPTIONAL_NON_ZERO,
288 &img_data, &img_len);
289 if (ret < 0)
290 return ret;
291 }
292
293 return 0;
294 }
295 #endif
296
spl_parse_legacy_header(struct spl_image_info * spl_image,const struct image_header * header)297 __weak int spl_parse_legacy_header(struct spl_image_info *spl_image,
298 const struct image_header *header)
299 {
300 /* LEGACY image not supported */
301 debug("Legacy boot image support not enabled, proceeding to other boot methods\n");
302 return -EINVAL;
303 }
304
spl_parse_image_header(struct spl_image_info * spl_image,const struct image_header * header)305 int spl_parse_image_header(struct spl_image_info *spl_image,
306 const struct image_header *header)
307 {
308 #ifdef CONFIG_SPL_LOAD_FIT_FULL
309 int ret = spl_load_fit_image(spl_image, header);
310
311 if (!ret)
312 return ret;
313 #endif
314 if (image_get_magic(header) == IH_MAGIC) {
315 int ret;
316
317 ret = spl_parse_legacy_header(spl_image, header);
318 if (ret)
319 return ret;
320 } else {
321 #ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
322 /*
323 * CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the
324 * code which loads images in SPL cannot guarantee that
325 * absolutely all read errors will be reported.
326 * An example is the LPC32XX MLC NAND driver, which
327 * will consider that a completely unreadable NAND block
328 * is bad, and thus should be skipped silently.
329 */
330 panic("** no mkimage signature but raw image not supported");
331 #endif
332
333 #ifdef CONFIG_SPL_OS_BOOT
334 ulong start, end;
335
336 if (!bootz_setup((ulong)header, &start, &end)) {
337 spl_image->name = "Linux";
338 spl_image->os = IH_OS_LINUX;
339 spl_image->load_addr = CONFIG_SYS_LOAD_ADDR;
340 spl_image->entry_point = CONFIG_SYS_LOAD_ADDR;
341 spl_image->size = end - start;
342 debug(SPL_TPL_PROMPT
343 "payload zImage, load addr: 0x%lx size: %d\n",
344 spl_image->load_addr, spl_image->size);
345 return 0;
346 }
347 #endif
348
349 #ifdef CONFIG_SPL_RAW_IMAGE_SUPPORT
350 /* Signature not found - assume u-boot.bin */
351 debug("mkimage signature not found - ih_magic = %x\n",
352 header->ih_magic);
353 spl_set_header_raw_uboot(spl_image);
354 #else
355 /* RAW image not supported, proceed to other boot methods. */
356 debug("Raw boot image support not enabled, proceeding to other boot methods\n");
357 return -EINVAL;
358 #endif
359 }
360
361 return 0;
362 }
363
jump_to_image_no_args(struct spl_image_info * spl_image)364 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
365 {
366 typedef void __noreturn (*image_entry_noargs_t)(void);
367
368 image_entry_noargs_t image_entry =
369 (image_entry_noargs_t)spl_image->entry_point;
370
371 debug("image entry point: 0x%lx\n", spl_image->entry_point);
372 image_entry();
373 }
374
375 #if CONFIG_IS_ENABLED(HANDOFF)
376 /**
377 * Set up the SPL hand-off information
378 *
379 * This is initially empty (zero) but can be written by
380 */
setup_spl_handoff(void)381 static int setup_spl_handoff(void)
382 {
383 struct spl_handoff *ho;
384
385 ho = bloblist_ensure(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
386 if (!ho)
387 return -ENOENT;
388
389 return 0;
390 }
391
handoff_arch_save(struct spl_handoff * ho)392 __weak int handoff_arch_save(struct spl_handoff *ho)
393 {
394 return 0;
395 }
396
write_spl_handoff(void)397 static int write_spl_handoff(void)
398 {
399 struct spl_handoff *ho;
400 int ret;
401
402 ho = bloblist_find(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
403 if (!ho)
404 return -ENOENT;
405 handoff_save_dram(ho);
406 ret = handoff_arch_save(ho);
407 if (ret)
408 return ret;
409 debug(SPL_TPL_PROMPT "Wrote SPL handoff\n");
410
411 return 0;
412 }
413 #else
setup_spl_handoff(void)414 static inline int setup_spl_handoff(void) { return 0; }
write_spl_handoff(void)415 static inline int write_spl_handoff(void) { return 0; }
416
417 #endif /* HANDOFF */
418
419 /**
420 * get_bootstage_id() - Get the bootstage ID to emit
421 *
422 * @start: true if this is for starting SPL, false for ending it
423 * @return bootstage ID to use
424 */
get_bootstage_id(bool start)425 static enum bootstage_id get_bootstage_id(bool start)
426 {
427 enum u_boot_phase phase = spl_phase();
428
429 if (IS_ENABLED(CONFIG_TPL_BUILD) && phase == PHASE_TPL)
430 return start ? BOOTSTAGE_ID_START_TPL : BOOTSTAGE_ID_END_TPL;
431 else
432 return start ? BOOTSTAGE_ID_START_SPL : BOOTSTAGE_ID_END_SPL;
433 }
434
spl_common_init(bool setup_malloc)435 static int spl_common_init(bool setup_malloc)
436 {
437 int ret;
438
439 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
440 if (setup_malloc) {
441 #ifdef CONFIG_MALLOC_F_ADDR
442 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
443 #endif
444 gd->malloc_limit = CONFIG_VAL(SYS_MALLOC_F_LEN);
445 gd->malloc_ptr = 0;
446 }
447 #endif
448 ret = bootstage_init(u_boot_first_phase());
449 if (ret) {
450 debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
451 ret);
452 return ret;
453 }
454 #ifdef CONFIG_BOOTSTAGE_STASH
455 if (!u_boot_first_phase()) {
456 const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
457 CONFIG_BOOTSTAGE_STASH_SIZE);
458
459 ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
460 if (ret)
461 debug("%s: Failed to unstash bootstage: ret=%d\n",
462 __func__, ret);
463 }
464 #endif /* CONFIG_BOOTSTAGE_STASH */
465 bootstage_mark_name(get_bootstage_id(true),
466 spl_phase_name(spl_phase()));
467 #if CONFIG_IS_ENABLED(LOG)
468 ret = log_init();
469 if (ret) {
470 debug("%s: Failed to set up logging\n", __func__);
471 return ret;
472 }
473 #endif
474 if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) {
475 ret = fdtdec_setup();
476 if (ret) {
477 debug("fdtdec_setup() returned error %d\n", ret);
478 return ret;
479 }
480 }
481 if (CONFIG_IS_ENABLED(DM)) {
482 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_SPL,
483 spl_phase() == PHASE_TPL ? "dm tpl" : "dm_spl");
484 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
485 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
486 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_SPL);
487 if (ret) {
488 debug("dm_init_and_scan() returned error %d\n", ret);
489 return ret;
490 }
491 }
492
493 return 0;
494 }
495
spl_set_bd(void)496 void spl_set_bd(void)
497 {
498 /*
499 * NOTE: On some platforms (e.g. x86) bdata may be in flash and not
500 * writeable.
501 */
502 if (!gd->bd)
503 gd->bd = &bdata;
504 }
505
spl_early_init(void)506 int spl_early_init(void)
507 {
508 int ret;
509
510 debug("%s\n", __func__);
511
512 ret = spl_common_init(true);
513 if (ret)
514 return ret;
515 gd->flags |= GD_FLG_SPL_EARLY_INIT;
516
517 return 0;
518 }
519
spl_init(void)520 int spl_init(void)
521 {
522 int ret;
523 bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
524 IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
525
526 debug("%s\n", __func__);
527
528 if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
529 ret = spl_common_init(setup_malloc);
530 if (ret)
531 return ret;
532 }
533 gd->flags |= GD_FLG_SPL_INIT;
534
535 return 0;
536 }
537
538 #ifndef BOOT_DEVICE_NONE
539 #define BOOT_DEVICE_NONE 0xdeadbeef
540 #endif
541
board_boot_order(u32 * spl_boot_list)542 __weak void board_boot_order(u32 *spl_boot_list)
543 {
544 spl_boot_list[0] = spl_boot_device();
545 }
546
spl_ll_find_loader(uint boot_device)547 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
548 {
549 struct spl_image_loader *drv =
550 ll_entry_start(struct spl_image_loader, spl_image_loader);
551 const int n_ents =
552 ll_entry_count(struct spl_image_loader, spl_image_loader);
553 struct spl_image_loader *entry;
554
555 for (entry = drv; entry != drv + n_ents; entry++) {
556 if (boot_device == entry->boot_device)
557 return entry;
558 }
559
560 /* Not found */
561 return NULL;
562 }
563
spl_load_image(struct spl_image_info * spl_image,struct spl_image_loader * loader)564 static int spl_load_image(struct spl_image_info *spl_image,
565 struct spl_image_loader *loader)
566 {
567 int ret;
568 struct spl_boot_device bootdev;
569
570 bootdev.boot_device = loader->boot_device;
571 bootdev.boot_device_name = NULL;
572
573 ret = loader->load_image(spl_image, &bootdev);
574 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
575 if (!ret && spl_image->dcrc_length) {
576 /* check data crc */
577 ulong dcrc = crc32_wd(0, (unsigned char *)spl_image->dcrc_data,
578 spl_image->dcrc_length, CHUNKSZ_CRC32);
579 if (dcrc != spl_image->dcrc) {
580 puts("SPL: Image data CRC check failed!\n");
581 ret = -EINVAL;
582 }
583 }
584 #endif
585 return ret;
586 }
587
588 /**
589 * boot_from_devices() - Try loading a booting U-Boot from a list of devices
590 *
591 * @spl_image: Place to put the image details if successful
592 * @spl_boot_list: List of boot devices to try
593 * @count: Number of elements in spl_boot_list
594 * @return 0 if OK, -ve on error
595 */
boot_from_devices(struct spl_image_info * spl_image,u32 spl_boot_list[],int count)596 static int boot_from_devices(struct spl_image_info *spl_image,
597 u32 spl_boot_list[], int count)
598 {
599 int i;
600
601 for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
602 struct spl_image_loader *loader;
603
604 loader = spl_ll_find_loader(spl_boot_list[i]);
605 #if defined(CONFIG_SPL_SERIAL_SUPPORT) \
606 && defined(CONFIG_SPL_LIBCOMMON_SUPPORT) \
607 && !defined(CONFIG_SILENT_CONSOLE)
608 if (loader)
609 printf("Trying to boot from %s\n", loader->name);
610 else
611 puts(SPL_TPL_PROMPT "Unsupported Boot Device!\n");
612 #endif
613 if (loader && !spl_load_image(spl_image, loader)) {
614 spl_image->boot_device = spl_boot_list[i];
615 return 0;
616 }
617 }
618
619 return -ENODEV;
620 }
621
622 #if defined(CONFIG_SPL_FRAMEWORK_BOARD_INIT_F)
board_init_f(ulong dummy)623 void board_init_f(ulong dummy)
624 {
625 if (CONFIG_IS_ENABLED(OF_CONTROL)) {
626 int ret;
627
628 ret = spl_early_init();
629 if (ret) {
630 debug("spl_early_init() failed: %d\n", ret);
631 hang();
632 }
633 }
634
635 preloader_console_init();
636 }
637 #endif
638
board_init_r(gd_t * dummy1,ulong dummy2)639 void board_init_r(gd_t *dummy1, ulong dummy2)
640 {
641 u32 spl_boot_list[] = {
642 BOOT_DEVICE_NONE,
643 BOOT_DEVICE_NONE,
644 BOOT_DEVICE_NONE,
645 BOOT_DEVICE_NONE,
646 BOOT_DEVICE_NONE,
647 };
648 struct spl_image_info spl_image;
649 int ret;
650
651 debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
652
653 spl_set_bd();
654
655 #if defined(CONFIG_SYS_SPL_MALLOC_START)
656 mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
657 CONFIG_SYS_SPL_MALLOC_SIZE);
658 gd->flags |= GD_FLG_FULL_MALLOC_INIT;
659 #endif
660 if (!(gd->flags & GD_FLG_SPL_INIT)) {
661 if (spl_init())
662 hang();
663 }
664 #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
665 /*
666 * timer_init() does not exist on PPC systems. The timer is initialized
667 * and enabled (decrementer) in interrupt_init() here.
668 */
669 timer_init();
670 #endif
671 if (CONFIG_IS_ENABLED(BLOBLIST)) {
672 ret = bloblist_init();
673 if (ret) {
674 debug("%s: Failed to set up bloblist: ret=%d\n",
675 __func__, ret);
676 puts(SPL_TPL_PROMPT "Cannot set up bloblist\n");
677 hang();
678 }
679 }
680 if (CONFIG_IS_ENABLED(HANDOFF)) {
681 int ret;
682
683 ret = setup_spl_handoff();
684 if (ret) {
685 puts(SPL_TPL_PROMPT "Cannot set up SPL handoff\n");
686 hang();
687 }
688 }
689
690 #if CONFIG_IS_ENABLED(BOARD_INIT)
691 spl_board_init();
692 #endif
693
694 #if defined(CONFIG_SPL_WATCHDOG_SUPPORT) && CONFIG_IS_ENABLED(WDT)
695 initr_watchdog();
696 #endif
697
698 if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) ||
699 IS_ENABLED(CONFIG_SPL_ATF))
700 dram_init_banksize();
701
702 bootcount_inc();
703
704 memset(&spl_image, '\0', sizeof(spl_image));
705 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
706 spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
707 #endif
708 spl_image.boot_device = BOOT_DEVICE_NONE;
709 board_boot_order(spl_boot_list);
710
711 if (boot_from_devices(&spl_image, spl_boot_list,
712 ARRAY_SIZE(spl_boot_list))) {
713 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
714 hang();
715 }
716
717 spl_perform_fixups(&spl_image);
718 if (CONFIG_IS_ENABLED(HANDOFF)) {
719 ret = write_spl_handoff();
720 if (ret)
721 printf(SPL_TPL_PROMPT
722 "SPL hand-off write failed (err=%d)\n", ret);
723 }
724 if (CONFIG_IS_ENABLED(BLOBLIST)) {
725 ret = bloblist_finish();
726 if (ret)
727 printf("Warning: Failed to finish bloblist (ret=%d)\n",
728 ret);
729 }
730
731 #ifdef CONFIG_CPU_V7M
732 spl_image.entry_point |= 0x1;
733 #endif
734 switch (spl_image.os) {
735 case IH_OS_U_BOOT:
736 debug("Jumping to %s...\n", spl_phase_name(spl_next_phase()));
737 break;
738 #if CONFIG_IS_ENABLED(ATF)
739 case IH_OS_ARM_TRUSTED_FIRMWARE:
740 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
741 spl_fixup_fdt(spl_image.fdt_addr);
742 spl_invoke_atf(&spl_image);
743 break;
744 #endif
745 #if CONFIG_IS_ENABLED(OPTEE)
746 case IH_OS_TEE:
747 debug("Jumping to U-Boot via OP-TEE\n");
748 spl_optee_entry(NULL, NULL, spl_image.fdt_addr,
749 (void *)spl_image.entry_point);
750 break;
751 #endif
752 #if CONFIG_IS_ENABLED(OPENSBI)
753 case IH_OS_OPENSBI:
754 debug("Jumping to U-Boot via RISC-V OpenSBI\n");
755 spl_invoke_opensbi(&spl_image);
756 break;
757 #endif
758 #ifdef CONFIG_SPL_OS_BOOT
759 case IH_OS_LINUX:
760 debug("Jumping to Linux\n");
761 #if defined(CONFIG_SYS_SPL_ARGS_ADDR)
762 spl_fixup_fdt((void *)CONFIG_SYS_SPL_ARGS_ADDR);
763 #endif
764 spl_board_prepare_for_linux();
765 jump_to_image_linux(&spl_image);
766 #endif
767 default:
768 debug("Unsupported OS image.. Jumping nevertheless..\n");
769 }
770 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
771 debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
772 gd->malloc_ptr / 1024);
773 #endif
774 bootstage_mark_name(get_bootstage_id(false), "end phase");
775 #ifdef CONFIG_BOOTSTAGE_STASH
776 ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
777 CONFIG_BOOTSTAGE_STASH_SIZE);
778 if (ret)
779 debug("Failed to stash bootstage: err=%d\n", ret);
780 #endif
781
782 spl_board_prepare_for_boot();
783 jump_to_image_no_args(&spl_image);
784 }
785
786 /*
787 * This requires UART clocks to be enabled. In order for this to work the
788 * caller must ensure that the gd pointer is valid.
789 */
preloader_console_init(void)790 void preloader_console_init(void)
791 {
792 #ifdef CONFIG_SPL_SERIAL_SUPPORT
793 gd->baudrate = CONFIG_BAUDRATE;
794
795 serial_init(); /* serial communications setup */
796
797 gd->have_console = 1;
798
799 #if CONFIG_IS_ENABLED(BANNER_PRINT)
800 puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
801 U_BOOT_TIME " " U_BOOT_TZ ")\n");
802 #endif
803 #ifdef CONFIG_SPL_DISPLAY_PRINT
804 spl_display_print();
805 #endif
806 #endif
807 }
808
809 /**
810 * This function is called before the stack is changed from initial stack to
811 * relocated stack. It tries to dump the stack size used
812 */
spl_relocate_stack_check(void)813 __weak void spl_relocate_stack_check(void)
814 {
815 #if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
816 ulong init_sp = gd->start_addr_sp;
817 ulong stack_bottom = init_sp - CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK);
818 u8 *ptr = (u8 *)stack_bottom;
819 ulong i;
820
821 for (i = 0; i < CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK); i++) {
822 if (*ptr != CONFIG_VAL(SYS_STACK_F_CHECK_BYTE))
823 break;
824 ptr++;
825 }
826 printf("SPL initial stack usage: %lu bytes\n",
827 CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK) - i);
828 #endif
829 }
830
831 /**
832 * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
833 *
834 * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
835 * for the main board_init_r() execution. This is typically because we need
836 * more stack space for things like the MMC sub-system.
837 *
838 * This function calculates the stack position, copies the global_data into
839 * place, sets the new gd (except for ARM, for which setting GD within a C
840 * function may not always work) and returns the new stack position. The
841 * caller is responsible for setting up the sp register and, in the case
842 * of ARM, setting up gd.
843 *
844 * All of this is done using the same layout and alignments as done in
845 * board_init_f_init_reserve() / board_init_f_alloc_reserve().
846 *
847 * @return new stack location, or 0 to use the same stack
848 */
spl_relocate_stack_gd(void)849 ulong spl_relocate_stack_gd(void)
850 {
851 #ifdef CONFIG_SPL_STACK_R
852 gd_t *new_gd;
853 ulong ptr = CONFIG_SPL_STACK_R_ADDR;
854
855 if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
856 spl_relocate_stack_check();
857
858 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
859 if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
860 debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
861 gd->malloc_ptr, gd->malloc_ptr / 1024);
862 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
863 gd->malloc_base = ptr;
864 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
865 gd->malloc_ptr = 0;
866 }
867 #endif
868 /* Get stack position: use 8-byte alignment for ABI compliance */
869 ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
870 new_gd = (gd_t *)ptr;
871 memcpy(new_gd, (void *)gd, sizeof(gd_t));
872 #if CONFIG_IS_ENABLED(DM)
873 dm_fixup_for_gd_move(new_gd);
874 #endif
875 #if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
876 gd = new_gd;
877 #endif
878 return ptr;
879 #else
880 return 0;
881 #endif
882 }
883
884 #if defined(CONFIG_BOOTCOUNT_LIMIT) && \
885 ((!defined(CONFIG_TPL_BUILD) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT)) || \
886 (defined(CONFIG_TPL_BUILD) && !defined(CONFIG_TPL_BOOTCOUNT_LIMIT)))
bootcount_store(ulong a)887 void bootcount_store(ulong a)
888 {
889 }
890
bootcount_load(void)891 ulong bootcount_load(void)
892 {
893 return 0;
894 }
895 #endif
896