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 <dm.h>
13 #include <handoff.h>
14 #include <irq_func.h>
15 #include <serial.h>
16 #include <spl.h>
17 #include <asm/u-boot.h>
18 #include <nand.h>
19 #include <fat.h>
20 #include <u-boot/crc.h>
21 #include <version.h>
22 #include <image.h>
23 #include <malloc.h>
24 #include <mapmem.h>
25 #include <dm/root.h>
26 #include <linux/compiler.h>
27 #include <fdt_support.h>
28 #include <bootcount.h>
29 #include <wdt.h>
30
31 DECLARE_GLOBAL_DATA_PTR;
32
33 #ifndef CONFIG_SYS_UBOOT_START
34 #define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE
35 #endif
36 #ifndef CONFIG_SYS_MONITOR_LEN
37 /* Unknown U-Boot size, let's assume it will not be more than 200 KB */
38 #define CONFIG_SYS_MONITOR_LEN (200 * 1024)
39 #endif
40
41 u32 *boot_params_ptr = NULL;
42
43 /* See spl.h for information about this */
44 binman_sym_declare(ulong, u_boot_any, image_pos);
45
46 /* Define board data structure */
47 static bd_t bdata __attribute__ ((section(".data")));
48
49 /*
50 * Board-specific Platform code can reimplement show_boot_progress () if needed
51 */
show_boot_progress(int val)52 __weak void show_boot_progress(int val) {}
53
54 #if defined(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF)
55 /* weak, default platform-specific function to initialize dram banks */
dram_init_banksize(void)56 __weak int dram_init_banksize(void)
57 {
58 return 0;
59 }
60 #endif
61
62 /*
63 * Default function to determine if u-boot or the OS should
64 * be started. This implementation always returns 1.
65 *
66 * Please implement your own board specific funcion to do this.
67 *
68 * RETURN
69 * 0 to not start u-boot
70 * positive if u-boot should start
71 */
72 #ifdef CONFIG_SPL_OS_BOOT
spl_start_uboot(void)73 __weak int spl_start_uboot(void)
74 {
75 puts(SPL_TPL_PROMPT
76 "Please implement spl_start_uboot() for your board\n");
77 puts(SPL_TPL_PROMPT "Direct Linux boot not active!\n");
78 return 1;
79 }
80
81 /*
82 * Weak default function for arch specific zImage check. Return zero
83 * and fill start and end address if image is recognized.
84 */
bootz_setup(ulong image,ulong * start,ulong * end)85 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
86 {
87 return 1;
88 }
89 #endif
90
91 /* Weak default function for arch/board-specific fixups to the spl_image_info */
spl_perform_fixups(struct spl_image_info * spl_image)92 void __weak spl_perform_fixups(struct spl_image_info *spl_image)
93 {
94 }
95
spl_fixup_fdt(void)96 void spl_fixup_fdt(void)
97 {
98 #if defined(CONFIG_SPL_OF_LIBFDT) && defined(CONFIG_SYS_SPL_ARGS_ADDR)
99 void *fdt_blob = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
100 int err;
101
102 err = fdt_check_header(fdt_blob);
103 if (err < 0) {
104 printf("fdt_root: %s\n", fdt_strerror(err));
105 return;
106 }
107
108 /* fixup the memory dt node */
109 err = fdt_shrink_to_minimum(fdt_blob, 0);
110 if (err == 0) {
111 printf(SPL_TPL_PROMPT "fdt_shrink_to_minimum err - %d\n", err);
112 return;
113 }
114
115 err = arch_fixup_fdt(fdt_blob);
116 if (err) {
117 printf(SPL_TPL_PROMPT "arch_fixup_fdt err - %d\n", err);
118 return;
119 }
120 #endif
121 }
122
123 /*
124 * Weak default function for board specific cleanup/preparation before
125 * Linux boot. Some boards/platforms might not need it, so just provide
126 * an empty stub here.
127 */
spl_board_prepare_for_linux(void)128 __weak void spl_board_prepare_for_linux(void)
129 {
130 /* Nothing to do! */
131 }
132
spl_board_prepare_for_boot(void)133 __weak void spl_board_prepare_for_boot(void)
134 {
135 /* Nothing to do! */
136 }
137
spl_get_load_buffer(ssize_t offset,size_t size)138 __weak struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
139 {
140 return (struct image_header *)(CONFIG_SYS_TEXT_BASE + offset);
141 }
142
spl_set_header_raw_uboot(struct spl_image_info * spl_image)143 void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
144 {
145 ulong u_boot_pos = binman_sym(ulong, u_boot_any, image_pos);
146
147 spl_image->size = CONFIG_SYS_MONITOR_LEN;
148
149 /*
150 * Binman error cases: address of the end of the previous region or the
151 * start of the image's entry area (usually 0) if there is no previous
152 * region.
153 */
154 if (u_boot_pos && u_boot_pos != BINMAN_SYM_MISSING) {
155 /* Binman does not support separated entry addresses */
156 spl_image->entry_point = u_boot_pos;
157 spl_image->load_addr = u_boot_pos;
158 } else {
159 spl_image->entry_point = CONFIG_SYS_UBOOT_START;
160 spl_image->load_addr = CONFIG_SYS_TEXT_BASE;
161 }
162 spl_image->os = IH_OS_U_BOOT;
163 spl_image->name = "U-Boot";
164 }
165
166 #ifdef CONFIG_SPL_LOAD_FIT_FULL
167 /* Parse and load full fitImage in SPL */
spl_load_fit_image(struct spl_image_info * spl_image,const struct image_header * header)168 static int spl_load_fit_image(struct spl_image_info *spl_image,
169 const struct image_header *header)
170 {
171 bootm_headers_t images;
172 const char *fit_uname_config = NULL;
173 const char *fit_uname_fdt = FIT_FDT_PROP;
174 const char *uname;
175 ulong fw_data = 0, dt_data = 0, img_data = 0;
176 ulong fw_len = 0, dt_len = 0, img_len = 0;
177 int idx, conf_noffset;
178 int ret;
179
180 #ifdef CONFIG_SPL_FIT_SIGNATURE
181 images.verify = 1;
182 #endif
183 ret = fit_image_load(&images, (ulong)header,
184 NULL, &fit_uname_config,
185 IH_ARCH_DEFAULT, IH_TYPE_STANDALONE, -1,
186 FIT_LOAD_REQUIRED, &fw_data, &fw_len);
187 if (ret < 0)
188 return ret;
189
190 spl_image->size = fw_len;
191 spl_image->entry_point = fw_data;
192 spl_image->load_addr = fw_data;
193 spl_image->os = IH_OS_U_BOOT;
194 spl_image->name = "U-Boot";
195
196 debug(SPL_TPL_PROMPT "payload image: %32s load addr: 0x%lx size: %d\n",
197 spl_image->name, spl_image->load_addr, spl_image->size);
198
199 #ifdef CONFIG_SPL_FIT_SIGNATURE
200 images.verify = 1;
201 #endif
202 ret = fit_image_load(&images, (ulong)header,
203 &fit_uname_fdt, &fit_uname_config,
204 IH_ARCH_DEFAULT, IH_TYPE_FLATDT, -1,
205 FIT_LOAD_OPTIONAL, &dt_data, &dt_len);
206 if (ret >= 0)
207 spl_image->fdt_addr = (void *)dt_data;
208
209 conf_noffset = fit_conf_get_node((const void *)header,
210 fit_uname_config);
211 if (conf_noffset <= 0)
212 return 0;
213
214 for (idx = 0;
215 uname = fdt_stringlist_get((const void *)header, conf_noffset,
216 FIT_LOADABLE_PROP, idx,
217 NULL), uname;
218 idx++)
219 {
220 #ifdef CONFIG_SPL_FIT_SIGNATURE
221 images.verify = 1;
222 #endif
223 ret = fit_image_load(&images, (ulong)header,
224 &uname, &fit_uname_config,
225 IH_ARCH_DEFAULT, IH_TYPE_LOADABLE, -1,
226 FIT_LOAD_OPTIONAL_NON_ZERO,
227 &img_data, &img_len);
228 if (ret < 0)
229 return ret;
230 }
231
232 return 0;
233 }
234 #endif
235
spl_parse_image_header(struct spl_image_info * spl_image,const struct image_header * header)236 int spl_parse_image_header(struct spl_image_info *spl_image,
237 const struct image_header *header)
238 {
239 #ifdef CONFIG_SPL_LOAD_FIT_FULL
240 int ret = spl_load_fit_image(spl_image, header);
241
242 if (!ret)
243 return ret;
244 #endif
245 if (image_get_magic(header) == IH_MAGIC) {
246 #ifdef CONFIG_SPL_LEGACY_IMAGE_SUPPORT
247 u32 header_size = sizeof(struct image_header);
248
249 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
250 /* check uImage header CRC */
251 if (!image_check_hcrc(header)) {
252 puts("SPL: Image header CRC check failed!\n");
253 return -EINVAL;
254 }
255 #endif
256
257 if (spl_image->flags & SPL_COPY_PAYLOAD_ONLY) {
258 /*
259 * On some system (e.g. powerpc), the load-address and
260 * entry-point is located at address 0. We can't load
261 * to 0-0x40. So skip header in this case.
262 */
263 spl_image->load_addr = image_get_load(header);
264 spl_image->entry_point = image_get_ep(header);
265 spl_image->size = image_get_data_size(header);
266 } else {
267 spl_image->entry_point = image_get_load(header);
268 /* Load including the header */
269 spl_image->load_addr = spl_image->entry_point -
270 header_size;
271 spl_image->size = image_get_data_size(header) +
272 header_size;
273 }
274 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
275 /* store uImage data length and CRC to check later */
276 spl_image->dcrc_data = image_get_load(header);
277 spl_image->dcrc_length = image_get_data_size(header);
278 spl_image->dcrc = image_get_dcrc(header);
279 #endif
280
281 spl_image->os = image_get_os(header);
282 spl_image->name = image_get_name(header);
283 debug(SPL_TPL_PROMPT
284 "payload image: %32s load addr: 0x%lx size: %d\n",
285 spl_image->name, spl_image->load_addr, spl_image->size);
286 #else
287 /* LEGACY image not supported */
288 debug("Legacy boot image support not enabled, proceeding to other boot methods\n");
289 return -EINVAL;
290 #endif
291 } else {
292 #ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
293 /*
294 * CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the
295 * code which loads images in SPL cannot guarantee that
296 * absolutely all read errors will be reported.
297 * An example is the LPC32XX MLC NAND driver, which
298 * will consider that a completely unreadable NAND block
299 * is bad, and thus should be skipped silently.
300 */
301 panic("** no mkimage signature but raw image not supported");
302 #endif
303
304 #ifdef CONFIG_SPL_OS_BOOT
305 ulong start, end;
306
307 if (!bootz_setup((ulong)header, &start, &end)) {
308 spl_image->name = "Linux";
309 spl_image->os = IH_OS_LINUX;
310 spl_image->load_addr = CONFIG_SYS_LOAD_ADDR;
311 spl_image->entry_point = CONFIG_SYS_LOAD_ADDR;
312 spl_image->size = end - start;
313 debug(SPL_TPL_PROMPT
314 "payload zImage, load addr: 0x%lx size: %d\n",
315 spl_image->load_addr, spl_image->size);
316 return 0;
317 }
318 #endif
319
320 #ifdef CONFIG_SPL_RAW_IMAGE_SUPPORT
321 /* Signature not found - assume u-boot.bin */
322 debug("mkimage signature not found - ih_magic = %x\n",
323 header->ih_magic);
324 spl_set_header_raw_uboot(spl_image);
325 #else
326 /* RAW image not supported, proceed to other boot methods. */
327 debug("Raw boot image support not enabled, proceeding to other boot methods\n");
328 return -EINVAL;
329 #endif
330 }
331
332 return 0;
333 }
334
jump_to_image_no_args(struct spl_image_info * spl_image)335 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
336 {
337 typedef void __noreturn (*image_entry_noargs_t)(void);
338
339 image_entry_noargs_t image_entry =
340 (image_entry_noargs_t)spl_image->entry_point;
341
342 debug("image entry point: 0x%lx\n", spl_image->entry_point);
343 image_entry();
344 }
345
346 #if CONFIG_IS_ENABLED(HANDOFF)
347 /**
348 * Set up the SPL hand-off information
349 *
350 * This is initially empty (zero) but can be written by
351 */
setup_spl_handoff(void)352 static int setup_spl_handoff(void)
353 {
354 struct spl_handoff *ho;
355
356 ho = bloblist_ensure(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
357 if (!ho)
358 return -ENOENT;
359
360 return 0;
361 }
362
handoff_arch_save(struct spl_handoff * ho)363 __weak int handoff_arch_save(struct spl_handoff *ho)
364 {
365 return 0;
366 }
367
write_spl_handoff(void)368 static int write_spl_handoff(void)
369 {
370 struct spl_handoff *ho;
371 int ret;
372
373 ho = bloblist_find(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
374 if (!ho)
375 return -ENOENT;
376 handoff_save_dram(ho);
377 ret = handoff_arch_save(ho);
378 if (ret)
379 return ret;
380 debug(SPL_TPL_PROMPT "Wrote SPL handoff\n");
381
382 return 0;
383 }
384 #else
setup_spl_handoff(void)385 static inline int setup_spl_handoff(void) { return 0; }
write_spl_handoff(void)386 static inline int write_spl_handoff(void) { return 0; }
387
388 #endif /* HANDOFF */
389
spl_common_init(bool setup_malloc)390 static int spl_common_init(bool setup_malloc)
391 {
392 int ret;
393
394 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
395 if (setup_malloc) {
396 #ifdef CONFIG_MALLOC_F_ADDR
397 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
398 #endif
399 gd->malloc_limit = CONFIG_VAL(SYS_MALLOC_F_LEN);
400 gd->malloc_ptr = 0;
401 }
402 #endif
403 ret = bootstage_init(u_boot_first_phase());
404 if (ret) {
405 debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
406 ret);
407 return ret;
408 }
409 #ifdef CONFIG_BOOTSTAGE_STASH
410 if (!u_boot_first_phase()) {
411 const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
412 CONFIG_BOOTSTAGE_STASH_SIZE);
413
414 ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
415 if (ret)
416 debug("%s: Failed to unstash bootstage: ret=%d\n",
417 __func__, ret);
418 }
419 #endif /* CONFIG_BOOTSTAGE_STASH */
420 bootstage_mark_name(spl_phase() == PHASE_TPL ? BOOTSTAGE_ID_START_TPL :
421 BOOTSTAGE_ID_START_SPL, SPL_TPL_NAME);
422 #if CONFIG_IS_ENABLED(LOG)
423 ret = log_init();
424 if (ret) {
425 debug("%s: Failed to set up logging\n", __func__);
426 return ret;
427 }
428 #endif
429 if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) {
430 ret = fdtdec_setup();
431 if (ret) {
432 debug("fdtdec_setup() returned error %d\n", ret);
433 return ret;
434 }
435 }
436 if (CONFIG_IS_ENABLED(DM)) {
437 bootstage_start(BOOTSTATE_ID_ACCUM_DM_SPL,
438 spl_phase() == PHASE_TPL ? "dm tpl" : "dm_spl");
439 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
440 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
441 bootstage_accum(BOOTSTATE_ID_ACCUM_DM_SPL);
442 if (ret) {
443 debug("dm_init_and_scan() returned error %d\n", ret);
444 return ret;
445 }
446 }
447
448 return 0;
449 }
450
spl_set_bd(void)451 void spl_set_bd(void)
452 {
453 /*
454 * NOTE: On some platforms (e.g. x86) bdata may be in flash and not
455 * writeable.
456 */
457 if (!gd->bd)
458 gd->bd = &bdata;
459 }
460
spl_early_init(void)461 int spl_early_init(void)
462 {
463 int ret;
464
465 debug("%s\n", __func__);
466
467 ret = spl_common_init(true);
468 if (ret)
469 return ret;
470 gd->flags |= GD_FLG_SPL_EARLY_INIT;
471
472 return 0;
473 }
474
spl_init(void)475 int spl_init(void)
476 {
477 int ret;
478 bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
479 IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
480
481 debug("%s\n", __func__);
482
483 if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
484 ret = spl_common_init(setup_malloc);
485 if (ret)
486 return ret;
487 }
488 gd->flags |= GD_FLG_SPL_INIT;
489
490 return 0;
491 }
492
493 #ifndef BOOT_DEVICE_NONE
494 #define BOOT_DEVICE_NONE 0xdeadbeef
495 #endif
496
board_boot_order(u32 * spl_boot_list)497 __weak void board_boot_order(u32 *spl_boot_list)
498 {
499 spl_boot_list[0] = spl_boot_device();
500 }
501
spl_ll_find_loader(uint boot_device)502 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
503 {
504 struct spl_image_loader *drv =
505 ll_entry_start(struct spl_image_loader, spl_image_loader);
506 const int n_ents =
507 ll_entry_count(struct spl_image_loader, spl_image_loader);
508 struct spl_image_loader *entry;
509
510 for (entry = drv; entry != drv + n_ents; entry++) {
511 if (boot_device == entry->boot_device)
512 return entry;
513 }
514
515 /* Not found */
516 return NULL;
517 }
518
spl_load_image(struct spl_image_info * spl_image,struct spl_image_loader * loader)519 static int spl_load_image(struct spl_image_info *spl_image,
520 struct spl_image_loader *loader)
521 {
522 int ret;
523 struct spl_boot_device bootdev;
524
525 bootdev.boot_device = loader->boot_device;
526 bootdev.boot_device_name = NULL;
527
528 ret = loader->load_image(spl_image, &bootdev);
529 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
530 if (!ret && spl_image->dcrc_length) {
531 /* check data crc */
532 ulong dcrc = crc32_wd(0, (unsigned char *)spl_image->dcrc_data,
533 spl_image->dcrc_length, CHUNKSZ_CRC32);
534 if (dcrc != spl_image->dcrc) {
535 puts("SPL: Image data CRC check failed!\n");
536 ret = -EINVAL;
537 }
538 }
539 #endif
540 return ret;
541 }
542
543 /**
544 * boot_from_devices() - Try loading a booting U-Boot from a list of devices
545 *
546 * @spl_image: Place to put the image details if successful
547 * @spl_boot_list: List of boot devices to try
548 * @count: Number of elements in spl_boot_list
549 * @return 0 if OK, -ve on error
550 */
boot_from_devices(struct spl_image_info * spl_image,u32 spl_boot_list[],int count)551 static int boot_from_devices(struct spl_image_info *spl_image,
552 u32 spl_boot_list[], int count)
553 {
554 int i;
555
556 for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
557 struct spl_image_loader *loader;
558
559 loader = spl_ll_find_loader(spl_boot_list[i]);
560 #if defined(CONFIG_SPL_SERIAL_SUPPORT) && defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
561 if (loader)
562 printf("Trying to boot from %s\n", loader->name);
563 else
564 puts(SPL_TPL_PROMPT "Unsupported Boot Device!\n");
565 #endif
566 if (loader && !spl_load_image(spl_image, loader)) {
567 spl_image->boot_device = spl_boot_list[i];
568 return 0;
569 }
570 }
571
572 return -ENODEV;
573 }
574
575 #if defined(CONFIG_SPL_FRAMEWORK_BOARD_INIT_F)
board_init_f(ulong dummy)576 void board_init_f(ulong dummy)
577 {
578 if (CONFIG_IS_ENABLED(OF_CONTROL)) {
579 int ret;
580
581 ret = spl_early_init();
582 if (ret) {
583 debug("spl_early_init() failed: %d\n", ret);
584 hang();
585 }
586 }
587
588 if (CONFIG_IS_ENABLED(SERIAL_SUPPORT))
589 preloader_console_init();
590 }
591 #endif
592
board_init_r(gd_t * dummy1,ulong dummy2)593 void board_init_r(gd_t *dummy1, ulong dummy2)
594 {
595 u32 spl_boot_list[] = {
596 BOOT_DEVICE_NONE,
597 BOOT_DEVICE_NONE,
598 BOOT_DEVICE_NONE,
599 BOOT_DEVICE_NONE,
600 BOOT_DEVICE_NONE,
601 };
602 struct spl_image_info spl_image;
603 int ret;
604
605 debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
606
607 spl_set_bd();
608
609 #if defined(CONFIG_SYS_SPL_MALLOC_START)
610 mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
611 CONFIG_SYS_SPL_MALLOC_SIZE);
612 gd->flags |= GD_FLG_FULL_MALLOC_INIT;
613 #endif
614 if (!(gd->flags & GD_FLG_SPL_INIT)) {
615 if (spl_init())
616 hang();
617 }
618 #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
619 /*
620 * timer_init() does not exist on PPC systems. The timer is initialized
621 * and enabled (decrementer) in interrupt_init() here.
622 */
623 timer_init();
624 #endif
625 if (CONFIG_IS_ENABLED(BLOBLIST)) {
626 ret = bloblist_init();
627 if (ret) {
628 debug("%s: Failed to set up bloblist: ret=%d\n",
629 __func__, ret);
630 puts(SPL_TPL_PROMPT "Cannot set up bloblist\n");
631 hang();
632 }
633 }
634 if (CONFIG_IS_ENABLED(HANDOFF)) {
635 int ret;
636
637 ret = setup_spl_handoff();
638 if (ret) {
639 puts(SPL_TPL_PROMPT "Cannot set up SPL handoff\n");
640 hang();
641 }
642 }
643
644 #if CONFIG_IS_ENABLED(BOARD_INIT)
645 spl_board_init();
646 #endif
647
648 #if defined(CONFIG_SPL_WATCHDOG_SUPPORT) && CONFIG_IS_ENABLED(WDT)
649 initr_watchdog();
650 #endif
651
652 if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF))
653 dram_init_banksize();
654
655 bootcount_inc();
656
657 memset(&spl_image, '\0', sizeof(spl_image));
658 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
659 spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
660 #endif
661 spl_image.boot_device = BOOT_DEVICE_NONE;
662 board_boot_order(spl_boot_list);
663
664 if (boot_from_devices(&spl_image, spl_boot_list,
665 ARRAY_SIZE(spl_boot_list))) {
666 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
667 hang();
668 }
669
670 spl_perform_fixups(&spl_image);
671 if (CONFIG_IS_ENABLED(HANDOFF)) {
672 ret = write_spl_handoff();
673 if (ret)
674 printf(SPL_TPL_PROMPT
675 "SPL hand-off write failed (err=%d)\n", ret);
676 }
677 if (CONFIG_IS_ENABLED(BLOBLIST)) {
678 ret = bloblist_finish();
679 if (ret)
680 printf("Warning: Failed to finish bloblist (ret=%d)\n",
681 ret);
682 }
683
684 #ifdef CONFIG_CPU_V7M
685 spl_image.entry_point |= 0x1;
686 #endif
687 switch (spl_image.os) {
688 case IH_OS_U_BOOT:
689 debug("Jumping to U-Boot\n");
690 break;
691 #if CONFIG_IS_ENABLED(ATF)
692 case IH_OS_ARM_TRUSTED_FIRMWARE:
693 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
694 spl_invoke_atf(&spl_image);
695 break;
696 #endif
697 #if CONFIG_IS_ENABLED(OPTEE)
698 case IH_OS_TEE:
699 debug("Jumping to U-Boot via OP-TEE\n");
700 spl_optee_entry(NULL, NULL, spl_image.fdt_addr,
701 (void *)spl_image.entry_point);
702 break;
703 #endif
704 #if CONFIG_IS_ENABLED(OPENSBI)
705 case IH_OS_OPENSBI:
706 debug("Jumping to U-Boot via RISC-V OpenSBI\n");
707 spl_invoke_opensbi(&spl_image);
708 break;
709 #endif
710 #ifdef CONFIG_SPL_OS_BOOT
711 case IH_OS_LINUX:
712 debug("Jumping to Linux\n");
713 spl_fixup_fdt();
714 spl_board_prepare_for_linux();
715 jump_to_image_linux(&spl_image);
716 #endif
717 default:
718 debug("Unsupported OS image.. Jumping nevertheless..\n");
719 }
720 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
721 debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
722 gd->malloc_ptr / 1024);
723 #endif
724 bootstage_mark_name(spl_phase() == PHASE_TPL ? BOOTSTAGE_ID_END_TPL :
725 BOOTSTAGE_ID_END_SPL, "end " SPL_TPL_NAME);
726 #ifdef CONFIG_BOOTSTAGE_STASH
727 ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
728 CONFIG_BOOTSTAGE_STASH_SIZE);
729 if (ret)
730 debug("Failed to stash bootstage: err=%d\n", ret);
731 #endif
732
733 debug("loaded - jumping to U-Boot...\n");
734 spl_board_prepare_for_boot();
735 jump_to_image_no_args(&spl_image);
736 }
737
738 #ifdef CONFIG_SPL_SERIAL_SUPPORT
739 /*
740 * This requires UART clocks to be enabled. In order for this to work the
741 * caller must ensure that the gd pointer is valid.
742 */
preloader_console_init(void)743 void preloader_console_init(void)
744 {
745 gd->baudrate = CONFIG_BAUDRATE;
746
747 serial_init(); /* serial communications setup */
748
749 gd->have_console = 1;
750
751 #if CONFIG_IS_ENABLED(BANNER_PRINT)
752 puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
753 U_BOOT_TIME " " U_BOOT_TZ ")\n");
754 #endif
755 #ifdef CONFIG_SPL_DISPLAY_PRINT
756 spl_display_print();
757 #endif
758 }
759 #endif
760
761 /**
762 * This function is called before the stack is changed from initial stack to
763 * relocated stack. It tries to dump the stack size used
764 */
spl_relocate_stack_check(void)765 __weak void spl_relocate_stack_check(void)
766 {
767 #if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
768 ulong init_sp = gd->start_addr_sp;
769 ulong stack_bottom = init_sp - CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK);
770 u8 *ptr = (u8 *)stack_bottom;
771 ulong i;
772
773 for (i = 0; i < CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK); i++) {
774 if (*ptr != CONFIG_VAL(SYS_STACK_F_CHECK_BYTE))
775 break;
776 ptr++;
777 }
778 printf("SPL initial stack usage: %lu bytes\n",
779 CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK) - i);
780 #endif
781 }
782
783 /**
784 * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
785 *
786 * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
787 * for the main board_init_r() execution. This is typically because we need
788 * more stack space for things like the MMC sub-system.
789 *
790 * This function calculates the stack position, copies the global_data into
791 * place, sets the new gd (except for ARM, for which setting GD within a C
792 * function may not always work) and returns the new stack position. The
793 * caller is responsible for setting up the sp register and, in the case
794 * of ARM, setting up gd.
795 *
796 * All of this is done using the same layout and alignments as done in
797 * board_init_f_init_reserve() / board_init_f_alloc_reserve().
798 *
799 * @return new stack location, or 0 to use the same stack
800 */
spl_relocate_stack_gd(void)801 ulong spl_relocate_stack_gd(void)
802 {
803 #ifdef CONFIG_SPL_STACK_R
804 gd_t *new_gd;
805 ulong ptr = CONFIG_SPL_STACK_R_ADDR;
806
807 if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
808 spl_relocate_stack_check();
809
810 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
811 if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
812 debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
813 gd->malloc_ptr, gd->malloc_ptr / 1024);
814 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
815 gd->malloc_base = ptr;
816 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
817 gd->malloc_ptr = 0;
818 }
819 #endif
820 /* Get stack position: use 8-byte alignment for ABI compliance */
821 ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
822 new_gd = (gd_t *)ptr;
823 memcpy(new_gd, (void *)gd, sizeof(gd_t));
824 #if CONFIG_IS_ENABLED(DM)
825 dm_fixup_for_gd_move(new_gd);
826 #endif
827 #if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
828 gd = new_gd;
829 #endif
830 return ptr;
831 #else
832 return 0;
833 #endif
834 }
835
836 #if defined(CONFIG_BOOTCOUNT_LIMIT) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT)
bootcount_store(ulong a)837 void bootcount_store(ulong a)
838 {
839 }
840
bootcount_load(void)841 ulong bootcount_load(void)
842 {
843 return 0;
844 }
845 #endif
846