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