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 *fit_uname_fdt = FIT_FDT_PROP;
 206         const char *uname;
 207         ulong fw_data = 0, dt_data = 0, img_data = 0;
 208         ulong fw_len = 0, dt_len = 0, img_len = 0;
 209         int idx, conf_noffset;
 210         int ret;
 211
 212 #ifdef CONFIG_SPL_FIT_SIGNATURE
 213         images.verify = 1;
 214 #endif
 215         ret = fit_image_load(&images, (ulong)header,
 216                              NULL, &fit_uname_config,
 217                              IH_ARCH_DEFAULT, IH_TYPE_STANDALONE, -1,
 218                              FIT_LOAD_REQUIRED, &fw_data, &fw_len);
 219         if (ret < 0)
 220                 return ret;
 221
 222         spl_image->size = fw_len;
 223         spl_image->entry_point = fw_data;
 224         spl_image->load_addr = fw_data;
 225         spl_image->os = IH_OS_U_BOOT;
 226         spl_image->name = "U-Boot";
 227
 228         debug(SPL_TPL_PROMPT "payload image: %32s load addr: 0x%lx size: %d\n",
 229               spl_image->name, spl_image->load_addr, spl_image->size);
 230
 231 #ifdef CONFIG_SPL_FIT_SIGNATURE
 232         images.verify = 1;
 233 #endif
 234         ret = fit_image_load(&images, (ulong)header,
 235                        &fit_uname_fdt, &fit_uname_config,
 236                        IH_ARCH_DEFAULT, IH_TYPE_FLATDT, -1,
 237                        FIT_LOAD_OPTIONAL, &dt_data, &dt_len);
 238         if (ret >= 0)
 239                 spl_image->fdt_addr = (void *)dt_data;
 240
 241         conf_noffset = fit_conf_get_node((const void *)header,
 242                                          fit_uname_config);
 243         if (conf_noffset <= 0)
 244                 return 0;
 245
 246         for (idx = 0;
 247              uname = fdt_stringlist_get((const void *)header, conf_noffset,
 248                                         FIT_LOADABLE_PROP, idx,
 249                                 NULL), uname;
 250              idx++)
 251         {
 252 #ifdef CONFIG_SPL_FIT_SIGNATURE
 253                 images.verify = 1;
 254 #endif
 255                 ret = fit_image_load(&images, (ulong)header,
 256                                      &uname, &fit_uname_config,
 257                                      IH_ARCH_DEFAULT, IH_TYPE_LOADABLE, -1,
 258                                      FIT_LOAD_OPTIONAL_NON_ZERO,
 259                                      &img_data, &img_len);
 260                 if (ret < 0)
 261                         return ret;
 262         }
 263
 264         return 0;
 265 }
 266 #endif
 267
 268 __weak int spl_parse_legacy_header(struct spl_image_info *spl_image,
 269                                    const struct image_header *header)
 270 {
 271         /* LEGACY image not supported */
 272         debug("Legacy boot image support not enabled, proceeding to other boot methods\n");
 273         return -EINVAL;
 274 }
 275
 276 int spl_parse_image_header(struct spl_image_info *spl_image,
 277                            const struct image_header *header)
 278 {
 279 #ifdef CONFIG_SPL_LOAD_FIT_FULL
 280         int ret = spl_load_fit_image(spl_image, header);
 281
 282         if (!ret)
 283                 return ret;
 284 #endif
 285         if (image_get_magic(header) == IH_MAGIC) {
 286                 int ret;
 287
 288                 ret = spl_parse_legacy_header(spl_image, header);
 289                 if (ret)
 290                         return ret;
 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
 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  */
 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
 363 __weak int handoff_arch_save(struct spl_handoff *ho)
 364 {
 365         return 0;
 366 }
 367
 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
 385 static inline int setup_spl_handoff(void) { return 0; }
 386 static inline int write_spl_handoff(void) { return 0; }
 387
 388 #endif /* HANDOFF */
 389
 390 /**
 391  * get_bootstage_id() - Get the bootstage ID to emit
 392  *
 393  * @start: true if this is for starting SPL, false for ending it
 394  * @return bootstage ID to use
 395  */
 396 static enum bootstage_id get_bootstage_id(bool start)
 397 {
 398         enum u_boot_phase phase = spl_phase();
 399
 400         if (IS_ENABLED(CONFIG_TPL_BUILD) && phase == PHASE_TPL)
 401                 return start ? BOOTSTAGE_ID_START_TPL : BOOTSTAGE_ID_END_TPL;
 402         else
 403                 return start ? BOOTSTAGE_ID_START_SPL : BOOTSTAGE_ID_END_SPL;
 404 }
 405
 406 static int spl_common_init(bool setup_malloc)
 407 {
 408         int ret;
 409
 410 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
 411         if (setup_malloc) {
 412 #ifdef CONFIG_MALLOC_F_ADDR
 413                 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
 414 #endif
 415                 gd->malloc_limit = CONFIG_VAL(SYS_MALLOC_F_LEN);
 416                 gd->malloc_ptr = 0;
 417         }
 418 #endif
 419         ret = bootstage_init(u_boot_first_phase());
 420         if (ret) {
 421                 debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
 422                       ret);
 423                 return ret;
 424         }
 425 #ifdef CONFIG_BOOTSTAGE_STASH
 426         if (!u_boot_first_phase()) {
 427                 const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
 428                                                CONFIG_BOOTSTAGE_STASH_SIZE);
 429
 430                 ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
 431                 if (ret)
 432                         debug("%s: Failed to unstash bootstage: ret=%d\n",
 433                               __func__, ret);
 434         }
 435 #endif /* CONFIG_BOOTSTAGE_STASH */
 436         bootstage_mark_name(get_bootstage_id(true),
 437                             spl_phase_name(spl_phase()));
 438 #if CONFIG_IS_ENABLED(LOG)
 439         ret = log_init();
 440         if (ret) {
 441                 debug("%s: Failed to set up logging\n", __func__);
 442                 return ret;
 443         }
 444 #endif
 445         if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) {
 446                 ret = fdtdec_setup();
 447                 if (ret) {
 448                         debug("fdtdec_setup() returned error %d\n", ret);
 449                         return ret;
 450                 }
 451         }
 452         if (CONFIG_IS_ENABLED(DM)) {
 453                 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_SPL,
 454                                 spl_phase() == PHASE_TPL ? "dm tpl" : "dm_spl");
 455                 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
 456                 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
 457                 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_SPL);
 458                 if (ret) {
 459                         debug("dm_init_and_scan() returned error %d\n", ret);
 460                         return ret;
 461                 }
 462         }
 463
 464         return 0;
 465 }
 466
 467 int spl_alloc_bd(void)
 468 {
 469         /*
 470          * NOTE: On some platforms (e.g. x86) bdata may be in flash and not
 471          * writeable.
 472          */
 473         if (!gd->bd) {
 474                 gd->bd = malloc(sizeof(*gd->bd));
 475                 if (!gd->bd)
 476                         return -ENOMEM;
 477         }
 478
 479         return 0;
 480 }
 481
 482 int spl_early_init(void)
 483 {
 484         int ret;
 485
 486         debug("%s\n", __func__);
 487
 488         ret = spl_common_init(true);
 489         if (ret)
 490                 return ret;
 491         gd->flags |= GD_FLG_SPL_EARLY_INIT;
 492
 493         return 0;
 494 }
 495
 496 int spl_init(void)
 497 {
 498         int ret;
 499         bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
 500                         IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
 501
 502         debug("%s\n", __func__);
 503
 504         if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
 505                 ret = spl_common_init(setup_malloc);
 506                 if (ret)
 507                         return ret;
 508         }
 509         gd->flags |= GD_FLG_SPL_INIT;
 510
 511         return 0;
 512 }
 513
 514 #ifndef BOOT_DEVICE_NONE
 515 #define BOOT_DEVICE_NONE 0xdeadbeef
 516 #endif
 517
 518 __weak void board_boot_order(u32 *spl_boot_list)
 519 {
 520         spl_boot_list[0] = spl_boot_device();
 521 }
 522
 523 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
 524 {
 525         struct spl_image_loader *drv =
 526                 ll_entry_start(struct spl_image_loader, spl_image_loader);
 527         const int n_ents =
 528                 ll_entry_count(struct spl_image_loader, spl_image_loader);
 529         struct spl_image_loader *entry;
 530
 531         for (entry = drv; entry != drv + n_ents; entry++) {
 532                 if (boot_device == entry->boot_device)
 533                         return entry;
 534         }
 535
 536         /* Not found */
 537         return NULL;
 538 }
 539
 540 static int spl_load_image(struct spl_image_info *spl_image,
 541                           struct spl_image_loader *loader)
 542 {
 543         int ret;
 544         struct spl_boot_device bootdev;
 545
 546         bootdev.boot_device = loader->boot_device;
 547         bootdev.boot_device_name = NULL;
 548
 549         ret = loader->load_image(spl_image, &bootdev);
 550 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
 551         if (!ret && spl_image->dcrc_length) {
 552                 /* check data crc */
 553                 ulong dcrc = crc32_wd(0, (unsigned char *)spl_image->dcrc_data,
 554                                       spl_image->dcrc_length, CHUNKSZ_CRC32);
 555                 if (dcrc != spl_image->dcrc) {
 556                         puts("SPL: Image data CRC check failed!\n");
 557                         ret = -EINVAL;
 558                 }
 559         }
 560 #endif
 561         return ret;
 562 }
 563
 564 /**
 565  * boot_from_devices() - Try loading a booting U-Boot from a list of devices
 566  *
 567  * @spl_image: Place to put the image details if successful
 568  * @spl_boot_list: List of boot devices to try
 569  * @count: Number of elements in spl_boot_list
 570  * @return 0 if OK, -ve on error
 571  */
 572 static int boot_from_devices(struct spl_image_info *spl_image,
 573                              u32 spl_boot_list[], int count)
 574 {
 575         int i;
 576
 577         for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
 578                 struct spl_image_loader *loader;
 579
 580                 loader = spl_ll_find_loader(spl_boot_list[i]);
 581 #if defined(CONFIG_SPL_SERIAL_SUPPORT) \
 582     && defined(CONFIG_SPL_LIBCOMMON_SUPPORT)    \
 583     && !defined(CONFIG_SILENT_CONSOLE)
 584                 if (loader)
 585                         printf("Trying to boot from %s\n", loader->name);
 586                 else
 587                         puts(SPL_TPL_PROMPT "Unsupported Boot Device!\n");
 588 #endif
 589                 if (loader && !spl_load_image(spl_image, loader)) {
 590                         spl_image->boot_device = spl_boot_list[i];
 591                         return 0;
 592                 }
 593         }
 594
 595         return -ENODEV;
 596 }
 597
 598 #if defined(CONFIG_SPL_FRAMEWORK_BOARD_INIT_F)
 599 void board_init_f(ulong dummy)
 600 {
 601         if (CONFIG_IS_ENABLED(OF_CONTROL)) {
 602                 int ret;
 603
 604                 ret = spl_early_init();
 605                 if (ret) {
 606                         debug("spl_early_init() failed: %d\n", ret);
 607                         hang();
 608                 }
 609         }
 610
 611         preloader_console_init();
 612 }
 613 #endif
 614
 615 void board_init_r(gd_t *dummy1, ulong dummy2)
 616 {
 617         u32 spl_boot_list[] = {
 618                 BOOT_DEVICE_NONE,
 619                 BOOT_DEVICE_NONE,
 620                 BOOT_DEVICE_NONE,
 621                 BOOT_DEVICE_NONE,
 622                 BOOT_DEVICE_NONE,
 623         };
 624         struct spl_image_info spl_image;
 625         int ret;
 626
 627         debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
 628
 629 #if defined(CONFIG_SYS_SPL_MALLOC_START)
 630         mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
 631                         CONFIG_SYS_SPL_MALLOC_SIZE);
 632         gd->flags |= GD_FLG_FULL_MALLOC_INIT;
 633 #endif
 634         if (!(gd->flags & GD_FLG_SPL_INIT)) {
 635                 if (spl_init())
 636                         hang();
 637         }
 638         if (IS_ENABLED(CONFIG_SPL_ALLOC_BD) && spl_alloc_bd()) {
 639                 puts("Cannot alloc bd\n");
 640                 hang();
 641         }
 642 #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
 643         /*
 644          * timer_init() does not exist on PPC systems. The timer is initialized
 645          * and enabled (decrementer) in interrupt_init() here.
 646          */
 647         timer_init();
 648 #endif
 649         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 650                 ret = bloblist_init();
 651                 if (ret) {
 652                         debug("%s: Failed to set up bloblist: ret=%d\n",
 653                               __func__, ret);
 654                         puts(SPL_TPL_PROMPT "Cannot set up bloblist\n");
 655                         hang();
 656                 }
 657         }
 658         if (CONFIG_IS_ENABLED(HANDOFF)) {
 659                 int ret;
 660
 661                 ret = setup_spl_handoff();
 662                 if (ret) {
 663                         puts(SPL_TPL_PROMPT "Cannot set up SPL handoff\n");
 664                         hang();
 665                 }
 666         }
 667
 668 #if CONFIG_IS_ENABLED(BOARD_INIT)
 669         spl_board_init();
 670 #endif
 671
 672 #if defined(CONFIG_SPL_WATCHDOG_SUPPORT) && CONFIG_IS_ENABLED(WDT)
 673         initr_watchdog();
 674 #endif
 675
 676         if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) ||
 677             IS_ENABLED(CONFIG_SPL_ATF))
 678                 dram_init_banksize();
 679
 680         bootcount_inc();
 681
 682         memset(&spl_image, '\0', sizeof(spl_image));
 683 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
 684         spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
 685 #endif
 686         spl_image.boot_device = BOOT_DEVICE_NONE;
 687         board_boot_order(spl_boot_list);
 688
 689         if (boot_from_devices(&spl_image, spl_boot_list,
 690                               ARRAY_SIZE(spl_boot_list))) {
 691                 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
 692                 hang();
 693         }
 694
 695         spl_perform_fixups(&spl_image);
 696         if (CONFIG_IS_ENABLED(HANDOFF)) {
 697                 ret = write_spl_handoff();
 698                 if (ret)
 699                         printf(SPL_TPL_PROMPT
 700                                "SPL hand-off write failed (err=%d)\n", ret);
 701         }
 702         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 703                 ret = bloblist_finish();
 704                 if (ret)
 705                         printf("Warning: Failed to finish bloblist (ret=%d)\n",
 706                                ret);
 707         }
 708
 709 #ifdef CONFIG_CPU_V7M
 710         spl_image.entry_point |= 0x1;
 711 #endif
 712         switch (spl_image.os) {
 713         case IH_OS_U_BOOT:
 714                 debug("Jumping to %s...\n", spl_phase_name(spl_next_phase()));
 715                 break;
 716 #if CONFIG_IS_ENABLED(ATF)
 717         case IH_OS_ARM_TRUSTED_FIRMWARE:
 718                 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
 719                 spl_fixup_fdt(spl_image.fdt_addr);
 720                 spl_invoke_atf(&spl_image);
 721                 break;
 722 #endif
 723 #if CONFIG_IS_ENABLED(OPTEE)
 724         case IH_OS_TEE:
 725                 debug("Jumping to U-Boot via OP-TEE\n");
 726                 spl_optee_entry(NULL, NULL, spl_image.fdt_addr,
 727                                 (void *)spl_image.entry_point);
 728                 break;
 729 #endif
 730 #if CONFIG_IS_ENABLED(OPENSBI)
 731         case IH_OS_OPENSBI:
 732                 debug("Jumping to U-Boot via RISC-V OpenSBI\n");
 733                 spl_invoke_opensbi(&spl_image);
 734                 break;
 735 #endif
 736 #ifdef CONFIG_SPL_OS_BOOT
 737         case IH_OS_LINUX:
 738                 debug("Jumping to Linux\n");
 739 #if defined(CONFIG_SYS_SPL_ARGS_ADDR)
 740                 spl_fixup_fdt((void *)CONFIG_SYS_SPL_ARGS_ADDR);
 741 #endif
 742                 spl_board_prepare_for_linux();
 743                 jump_to_image_linux(&spl_image);
 744 #endif
 745         default:
 746                 debug("Unsupported OS image.. Jumping nevertheless..\n");
 747         }
 748 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
 749         debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
 750               gd->malloc_ptr / 1024);
 751 #endif
 752         bootstage_mark_name(get_bootstage_id(false), "end phase");
 753 #ifdef CONFIG_BOOTSTAGE_STASH
 754         ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
 755                               CONFIG_BOOTSTAGE_STASH_SIZE);
 756         if (ret)
 757                 debug("Failed to stash bootstage: err=%d\n", ret);
 758 #endif
 759
 760         spl_board_prepare_for_boot();
 761         jump_to_image_no_args(&spl_image);
 762 }
 763
 764 /*
 765  * This requires UART clocks to be enabled.  In order for this to work the
 766  * caller must ensure that the gd pointer is valid.
 767  */
 768 void preloader_console_init(void)
 769 {
 770 #ifdef CONFIG_SPL_SERIAL_SUPPORT
 771         gd->baudrate = CONFIG_BAUDRATE;
 772
 773         serial_init();          /* serial communications setup */
 774
 775         gd->have_console = 1;
 776
 777 #if CONFIG_IS_ENABLED(BANNER_PRINT)
 778         puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
 779              U_BOOT_TIME " " U_BOOT_TZ ")\n");
 780 #endif
 781 #ifdef CONFIG_SPL_DISPLAY_PRINT
 782         spl_display_print();
 783 #endif
 784 #endif
 785 }
 786
 787 /**
 788  * This function is called before the stack is changed from initial stack to
 789  * relocated stack. It tries to dump the stack size used
 790  */
 791 __weak void spl_relocate_stack_check(void)
 792 {
 793 #if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
 794         ulong init_sp = gd->start_addr_sp;
 795         ulong stack_bottom = init_sp - CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK);
 796         u8 *ptr = (u8 *)stack_bottom;
 797         ulong i;
 798
 799         for (i = 0; i < CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK); i++) {
 800                 if (*ptr != CONFIG_VAL(SYS_STACK_F_CHECK_BYTE))
 801                         break;
 802                 ptr++;
 803         }
 804         printf("SPL initial stack usage: %lu bytes\n",
 805                CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK) - i);
 806 #endif
 807 }
 808
 809 /**
 810  * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
 811  *
 812  * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
 813  * for the main board_init_r() execution. This is typically because we need
 814  * more stack space for things like the MMC sub-system.
 815  *
 816  * This function calculates the stack position, copies the global_data into
 817  * place, sets the new gd (except for ARM, for which setting GD within a C
 818  * function may not always work) and returns the new stack position. The
 819  * caller is responsible for setting up the sp register and, in the case
 820  * of ARM, setting up gd.
 821  *
 822  * All of this is done using the same layout and alignments as done in
 823  * board_init_f_init_reserve() / board_init_f_alloc_reserve().
 824  *
 825  * @return new stack location, or 0 to use the same stack
 826  */
 827 ulong spl_relocate_stack_gd(void)
 828 {
 829 #ifdef CONFIG_SPL_STACK_R
 830         gd_t *new_gd;
 831         ulong ptr = CONFIG_SPL_STACK_R_ADDR;
 832
 833         if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
 834                 spl_relocate_stack_check();
 835
 836 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
 837         if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
 838                 debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
 839                       gd->malloc_ptr, gd->malloc_ptr / 1024);
 840                 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 841                 gd->malloc_base = ptr;
 842                 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 843                 gd->malloc_ptr = 0;
 844         }
 845 #endif
 846         /* Get stack position: use 8-byte alignment for ABI compliance */
 847         ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
 848         new_gd = (gd_t *)ptr;
 849         memcpy(new_gd, (void *)gd, sizeof(gd_t));
 850 #if CONFIG_IS_ENABLED(DM)
 851         dm_fixup_for_gd_move(new_gd);
 852 #endif
 853 #if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
 854         gd = new_gd;
 855 #endif
 856         return ptr;
 857 #else
 858         return 0;
 859 #endif
 860 }
 861
 862 #if defined(CONFIG_BOOTCOUNT_LIMIT) && \
 863         ((!defined(CONFIG_TPL_BUILD) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT)) || \
 864          (defined(CONFIG_TPL_BUILD) && !defined(CONFIG_TPL_BOOTCOUNT_LIMIT)))
 865 void bootcount_store(ulong a)
 866 {
 867 }
 868
 869 ulong bootcount_load(void)
 870 {
 871         return 0;
 872 }
 873 #endif