common/spl/spl.c

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