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