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/global_data.h>
  22 #include <asm/u-boot.h>
  23 #include <nand.h>
  24 #include <fat.h>
  25 #include <u-boot/crc.h>
  26 #include <version.h>
  27 #include <image.h>
  28 #include <malloc.h>
  29 #include <mapmem.h>
  30 #include <dm/root.h>
  31 #include <linux/compiler.h>
  32 #include <fdt_support.h>
  33 #include <bootcount.h>
  34 #include <wdt.h>
  35
  36 DECLARE_GLOBAL_DATA_PTR;
  37
  38 #ifndef CONFIG_SYS_UBOOT_START
  39 #define CONFIG_SYS_UBOOT_START  CONFIG_SYS_TEXT_BASE
  40 #endif
  41 #ifndef CONFIG_SYS_MONITOR_LEN
  42 /* Unknown U-Boot size, let's assume it will not be more than 200 KB */
  43 #define CONFIG_SYS_MONITOR_LEN  (200 * 1024)
  44 #endif
  45
  46 u32 *boot_params_ptr = NULL;
  47
  48 /* See spl.h for information about this */
  49 binman_sym_declare(ulong, u_boot_any, image_pos);
  50 binman_sym_declare(ulong, u_boot_any, size);
  51
  52 #ifdef CONFIG_TPL
  53 binman_sym_declare(ulong, spl, image_pos);
  54 binman_sym_declare(ulong, spl, size);
  55 #endif
  56
  57 /*
  58  * Board-specific Platform code can reimplement show_boot_progress () if needed
  59  */
  60 __weak void show_boot_progress(int val) {}
  61
  62 #if defined(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) || \
  63         defined(CONFIG_SPL_ATF)
  64 /* weak, default platform-specific function to initialize dram banks */
  65 __weak int dram_init_banksize(void)
  66 {
  67         return 0;
  68 }
  69 #endif
  70
  71 /*
  72  * Default function to determine if u-boot or the OS should
  73  * be started. This implementation always returns 1.
  74  *
  75  * Please implement your own board specific funcion to do this.
  76  *
  77  * RETURN
  78  * 0 to not start u-boot
  79  * positive if u-boot should start
  80  */
  81 #ifdef CONFIG_SPL_OS_BOOT
  82 __weak int spl_start_uboot(void)
  83 {
  84         puts(SPL_TPL_PROMPT
  85              "Please implement spl_start_uboot() for your board\n");
  86         puts(SPL_TPL_PROMPT "Direct Linux boot not active!\n");
  87         return 1;
  88 }
  89
  90 /*
  91  * Weak default function for arch specific zImage check. Return zero
  92  * and fill start and end address if image is recognized.
  93  */
  94 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
  95 {
  96          return 1;
  97 }
  98 #endif
  99
 100 /* Weak default function for arch/board-specific fixups to the spl_image_info */
 101 void __weak spl_perform_fixups(struct spl_image_info *spl_image)
 102 {
 103 }
 104
 105 void spl_fixup_fdt(void *fdt_blob)
 106 {
 107 #if defined(CONFIG_SPL_OF_LIBFDT)
 108         int err;
 109
 110         if (!fdt_blob)
 111                 return;
 112
 113         err = fdt_check_header(fdt_blob);
 114         if (err < 0) {
 115                 printf("fdt_root: %s\n", fdt_strerror(err));
 116                 return;
 117         }
 118
 119         /* fixup the memory dt node */
 120         err = fdt_shrink_to_minimum(fdt_blob, 0);
 121         if (err == 0) {
 122                 printf(SPL_TPL_PROMPT "fdt_shrink_to_minimum err - %d\n", err);
 123                 return;
 124         }
 125
 126         err = arch_fixup_fdt(fdt_blob);
 127         if (err) {
 128                 printf(SPL_TPL_PROMPT "arch_fixup_fdt err - %d\n", err);
 129                 return;
 130         }
 131 #endif
 132 }
 133
 134 ulong spl_get_image_pos(void)
 135 {
 136         return spl_phase() == PHASE_TPL ?
 137                 binman_sym(ulong, spl, image_pos) :
 138                 binman_sym(ulong, u_boot_any, image_pos);
 139 }
 140
 141 ulong spl_get_image_size(void)
 142 {
 143         return spl_phase() == PHASE_TPL ?
 144                 binman_sym(ulong, spl, size) :
 145                 binman_sym(ulong, u_boot_any, size);
 146 }
 147
 148 ulong spl_get_image_text_base(void)
 149 {
 150         return spl_phase() == PHASE_TPL ? CONFIG_SPL_TEXT_BASE :
 151                 CONFIG_SYS_TEXT_BASE;
 152 }
 153
 154 /*
 155  * Weak default function for board specific cleanup/preparation before
 156  * Linux boot. Some boards/platforms might not need it, so just provide
 157  * an empty stub here.
 158  */
 159 __weak void spl_board_prepare_for_linux(void)
 160 {
 161         /* Nothing to do! */
 162 }
 163
 164 __weak void spl_board_prepare_for_boot(void)
 165 {
 166         /* Nothing to do! */
 167 }
 168
 169 __weak struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
 170 {
 171         return (struct image_header *)(CONFIG_SYS_TEXT_BASE + offset);
 172 }
 173
 174 void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
 175 {
 176         ulong u_boot_pos = binman_sym(ulong, u_boot_any, image_pos);
 177
 178         spl_image->size = CONFIG_SYS_MONITOR_LEN;
 179
 180         /*
 181          * Binman error cases: address of the end of the previous region or the
 182          * start of the image's entry area (usually 0) if there is no previous
 183          * region.
 184          */
 185         if (u_boot_pos && u_boot_pos != BINMAN_SYM_MISSING) {
 186                 /* Binman does not support separated entry addresses */
 187                 spl_image->entry_point = u_boot_pos;
 188                 spl_image->load_addr = u_boot_pos;
 189         } else {
 190                 spl_image->entry_point = CONFIG_SYS_UBOOT_START;
 191                 spl_image->load_addr = CONFIG_SYS_TEXT_BASE;
 192         }
 193         spl_image->os = IH_OS_U_BOOT;
 194         spl_image->name = "U-Boot";
 195 }
 196
 197 #ifdef CONFIG_SPL_LOAD_FIT_FULL
 198 /* Parse and load full fitImage in SPL */
 199 static int spl_load_fit_image(struct spl_image_info *spl_image,
 200                               const struct image_header *header)
 201 {
 202         bootm_headers_t images;
 203         const char *fit_uname_config = NULL;
 204         const char *fit_uname_fdt = FIT_FDT_PROP;
 205         const char *uname;
 206         ulong fw_data = 0, dt_data = 0, img_data = 0;
 207         ulong fw_len = 0, dt_len = 0, img_len = 0;
 208         int idx, conf_noffset;
 209         int ret;
 210
 211 #ifdef CONFIG_SPL_FIT_SIGNATURE
 212         images.verify = 1;
 213 #endif
 214         ret = fit_image_load(&images, (ulong)header,
 215                              NULL, &fit_uname_config,
 216                              IH_ARCH_DEFAULT, IH_TYPE_STANDALONE, -1,
 217                              FIT_LOAD_REQUIRED, &fw_data, &fw_len);
 218         if (ret < 0)
 219                 return ret;
 220
 221         spl_image->size = fw_len;
 222         spl_image->entry_point = fw_data;
 223         spl_image->load_addr = fw_data;
 224         spl_image->os = IH_OS_U_BOOT;
 225         spl_image->name = "U-Boot";
 226
 227         debug(SPL_TPL_PROMPT "payload image: %32s load addr: 0x%lx size: %d\n",
 228               spl_image->name, spl_image->load_addr, spl_image->size);
 229
 230 #ifdef CONFIG_SPL_FIT_SIGNATURE
 231         images.verify = 1;
 232 #endif
 233         ret = fit_image_load(&images, (ulong)header,
 234                        &fit_uname_fdt, &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 static int spl_common_init(bool setup_malloc)
 390 {
 391         int ret;
 392
 393 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
 394         if (setup_malloc) {
 395 #ifdef CONFIG_MALLOC_F_ADDR
 396                 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
 397 #endif
 398                 gd->malloc_limit = CONFIG_VAL(SYS_MALLOC_F_LEN);
 399                 gd->malloc_ptr = 0;
 400         }
 401 #endif
 402         ret = bootstage_init(u_boot_first_phase());
 403         if (ret) {
 404                 debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
 405                       ret);
 406                 return ret;
 407         }
 408 #ifdef CONFIG_BOOTSTAGE_STASH
 409         if (!u_boot_first_phase()) {
 410                 const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
 411                                                CONFIG_BOOTSTAGE_STASH_SIZE);
 412
 413                 ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
 414                 if (ret)
 415                         debug("%s: Failed to unstash bootstage: ret=%d\n",
 416                               __func__, ret);
 417         }
 418 #endif /* CONFIG_BOOTSTAGE_STASH */
 419         bootstage_mark_name(spl_phase() == PHASE_TPL ? BOOTSTAGE_ID_START_TPL :
 420                             BOOTSTAGE_ID_START_SPL, SPL_TPL_NAME);
 421 #if CONFIG_IS_ENABLED(LOG)
 422         ret = log_init();
 423         if (ret) {
 424                 debug("%s: Failed to set up logging\n", __func__);
 425                 return ret;
 426         }
 427 #endif
 428         if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) {
 429                 ret = fdtdec_setup();
 430                 if (ret) {
 431                         debug("fdtdec_setup() returned error %d\n", ret);
 432                         return ret;
 433                 }
 434         }
 435         if (CONFIG_IS_ENABLED(DM)) {
 436                 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_SPL,
 437                                 spl_phase() == PHASE_TPL ? "dm tpl" : "dm_spl");
 438                 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
 439                 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
 440                 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_SPL);
 441                 if (ret) {
 442                         debug("dm_init_and_scan() returned error %d\n", ret);
 443                         return ret;
 444                 }
 445         }
 446
 447         return 0;
 448 }
 449
 450 int spl_alloc_bd(void)
 451 {
 452         /*
 453          * NOTE: On some platforms (e.g. x86) bdata may be in flash and not
 454          * writeable.
 455          */
 456         if (!gd->bd) {
 457                 gd->bd = malloc(sizeof(*gd->bd));
 458                 if (!gd->bd)
 459                         return -ENOMEM;
 460         }
 461
 462         return 0;
 463 }
 464
 465 int spl_early_init(void)
 466 {
 467         int ret;
 468
 469         debug("%s\n", __func__);
 470
 471         ret = spl_common_init(true);
 472         if (ret)
 473                 return ret;
 474         gd->flags |= GD_FLG_SPL_EARLY_INIT;
 475
 476         return 0;
 477 }
 478
 479 int spl_init(void)
 480 {
 481         int ret;
 482         bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
 483                         IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
 484
 485         debug("%s\n", __func__);
 486
 487         if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
 488                 ret = spl_common_init(setup_malloc);
 489                 if (ret)
 490                         return ret;
 491         }
 492         gd->flags |= GD_FLG_SPL_INIT;
 493
 494         return 0;
 495 }
 496
 497 #ifndef BOOT_DEVICE_NONE
 498 #define BOOT_DEVICE_NONE 0xdeadbeef
 499 #endif
 500
 501 __weak void board_boot_order(u32 *spl_boot_list)
 502 {
 503         spl_boot_list[0] = spl_boot_device();
 504 }
 505
 506 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
 507 {
 508         struct spl_image_loader *drv =
 509                 ll_entry_start(struct spl_image_loader, spl_image_loader);
 510         const int n_ents =
 511                 ll_entry_count(struct spl_image_loader, spl_image_loader);
 512         struct spl_image_loader *entry;
 513
 514         for (entry = drv; entry != drv + n_ents; entry++) {
 515                 if (boot_device == entry->boot_device)
 516                         return entry;
 517         }
 518
 519         /* Not found */
 520         return NULL;
 521 }
 522
 523 static int spl_load_image(struct spl_image_info *spl_image,
 524                           struct spl_image_loader *loader)
 525 {
 526         int ret;
 527         struct spl_boot_device bootdev;
 528
 529         bootdev.boot_device = loader->boot_device;
 530         bootdev.boot_device_name = NULL;
 531
 532         ret = loader->load_image(spl_image, &bootdev);
 533 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
 534         if (!ret && spl_image->dcrc_length) {
 535                 /* check data crc */
 536                 ulong dcrc = crc32_wd(0, (unsigned char *)spl_image->dcrc_data,
 537                                       spl_image->dcrc_length, CHUNKSZ_CRC32);
 538                 if (dcrc != spl_image->dcrc) {
 539                         puts("SPL: Image data CRC check failed!\n");
 540                         ret = -EINVAL;
 541                 }
 542         }
 543 #endif
 544         return ret;
 545 }
 546
 547 /**
 548  * boot_from_devices() - Try loading a booting U-Boot from a list of devices
 549  *
 550  * @spl_image: Place to put the image details if successful
 551  * @spl_boot_list: List of boot devices to try
 552  * @count: Number of elements in spl_boot_list
 553  * @return 0 if OK, -ve on error
 554  */
 555 static int boot_from_devices(struct spl_image_info *spl_image,
 556                              u32 spl_boot_list[], int count)
 557 {
 558         int i;
 559
 560         for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
 561                 struct spl_image_loader *loader;
 562
 563                 loader = spl_ll_find_loader(spl_boot_list[i]);
 564 #if defined(CONFIG_SPL_SERIAL_SUPPORT) \
 565     && defined(CONFIG_SPL_LIBCOMMON_SUPPORT)    \
 566     && !defined(CONFIG_SILENT_CONSOLE)
 567                 if (loader)
 568                         printf("Trying to boot from %s\n", loader->name);
 569                 else
 570                         puts(SPL_TPL_PROMPT "Unsupported Boot Device!\n");
 571 #endif
 572                 if (loader && !spl_load_image(spl_image, loader)) {
 573                         spl_image->boot_device = spl_boot_list[i];
 574                         return 0;
 575                 }
 576         }
 577
 578         return -ENODEV;
 579 }
 580
 581 #if defined(CONFIG_SPL_FRAMEWORK_BOARD_INIT_F)
 582 void board_init_f(ulong dummy)
 583 {
 584         if (CONFIG_IS_ENABLED(OF_CONTROL)) {
 585                 int ret;
 586
 587                 ret = spl_early_init();
 588                 if (ret) {
 589                         debug("spl_early_init() failed: %d\n", ret);
 590                         hang();
 591                 }
 592         }
 593
 594         preloader_console_init();
 595 }
 596 #endif
 597
 598 void board_init_r(gd_t *dummy1, ulong dummy2)
 599 {
 600         u32 spl_boot_list[] = {
 601                 BOOT_DEVICE_NONE,
 602                 BOOT_DEVICE_NONE,
 603                 BOOT_DEVICE_NONE,
 604                 BOOT_DEVICE_NONE,
 605                 BOOT_DEVICE_NONE,
 606         };
 607         struct spl_image_info spl_image;
 608         int ret;
 609
 610         debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
 611
 612 #if defined(CONFIG_SYS_SPL_MALLOC_START)
 613         mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
 614                         CONFIG_SYS_SPL_MALLOC_SIZE);
 615         gd->flags |= GD_FLG_FULL_MALLOC_INIT;
 616 #endif
 617         if (!(gd->flags & GD_FLG_SPL_INIT)) {
 618                 if (spl_init())
 619                         hang();
 620         }
 621         if (IS_ENABLED(CONFIG_SPL_ALLOC_BD) && spl_alloc_bd()) {
 622                 puts("Cannot alloc bd\n");
 623                 hang();
 624         }
 625 #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
 626         /*
 627          * timer_init() does not exist on PPC systems. The timer is initialized
 628          * and enabled (decrementer) in interrupt_init() here.
 629          */
 630         timer_init();
 631 #endif
 632         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 633                 ret = bloblist_init();
 634                 if (ret) {
 635                         debug("%s: Failed to set up bloblist: ret=%d\n",
 636                               __func__, ret);
 637                         puts(SPL_TPL_PROMPT "Cannot set up bloblist\n");
 638                         hang();
 639                 }
 640         }
 641         if (CONFIG_IS_ENABLED(HANDOFF)) {
 642                 int ret;
 643
 644                 ret = setup_spl_handoff();
 645                 if (ret) {
 646                         puts(SPL_TPL_PROMPT "Cannot set up SPL handoff\n");
 647                         hang();
 648                 }
 649         }
 650
 651 #if CONFIG_IS_ENABLED(BOARD_INIT)
 652         spl_board_init();
 653 #endif
 654
 655 #if defined(CONFIG_SPL_WATCHDOG_SUPPORT) && CONFIG_IS_ENABLED(WDT)
 656         initr_watchdog();
 657 #endif
 658
 659         if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) ||
 660             IS_ENABLED(CONFIG_SPL_ATF))
 661                 dram_init_banksize();
 662
 663         bootcount_inc();
 664
 665         memset(&spl_image, '\0', sizeof(spl_image));
 666 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
 667         spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
 668 #endif
 669         spl_image.boot_device = BOOT_DEVICE_NONE;
 670         board_boot_order(spl_boot_list);
 671
 672         if (boot_from_devices(&spl_image, spl_boot_list,
 673                               ARRAY_SIZE(spl_boot_list))) {
 674                 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
 675                 hang();
 676         }
 677
 678         spl_perform_fixups(&spl_image);
 679         if (CONFIG_IS_ENABLED(HANDOFF)) {
 680                 ret = write_spl_handoff();
 681                 if (ret)
 682                         printf(SPL_TPL_PROMPT
 683                                "SPL hand-off write failed (err=%d)\n", ret);
 684         }
 685         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 686                 ret = bloblist_finish();
 687                 if (ret)
 688                         printf("Warning: Failed to finish bloblist (ret=%d)\n",
 689                                ret);
 690         }
 691
 692 #ifdef CONFIG_CPU_V7M
 693         spl_image.entry_point |= 0x1;
 694 #endif
 695         switch (spl_image.os) {
 696         case IH_OS_U_BOOT:
 697                 debug("Jumping to %s...\n", spl_phase_name(spl_next_phase()));
 698                 break;
 699 #if CONFIG_IS_ENABLED(ATF)
 700         case IH_OS_ARM_TRUSTED_FIRMWARE:
 701                 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
 702                 spl_fixup_fdt(spl_image.fdt_addr);
 703                 spl_invoke_atf(&spl_image);
 704                 break;
 705 #endif
 706 #if CONFIG_IS_ENABLED(OPTEE)
 707         case IH_OS_TEE:
 708                 debug("Jumping to U-Boot via OP-TEE\n");
 709                 spl_optee_entry(NULL, NULL, spl_image.fdt_addr,
 710                                 (void *)spl_image.entry_point);
 711                 break;
 712 #endif
 713 #if CONFIG_IS_ENABLED(OPENSBI)
 714         case IH_OS_OPENSBI:
 715                 debug("Jumping to U-Boot via RISC-V OpenSBI\n");
 716                 spl_invoke_opensbi(&spl_image);
 717                 break;
 718 #endif
 719 #ifdef CONFIG_SPL_OS_BOOT
 720         case IH_OS_LINUX:
 721                 debug("Jumping to Linux\n");
 722 #if defined(CONFIG_SYS_SPL_ARGS_ADDR)
 723                 spl_fixup_fdt((void *)CONFIG_SYS_SPL_ARGS_ADDR);
 724 #endif
 725                 spl_board_prepare_for_linux();
 726                 jump_to_image_linux(&spl_image);
 727 #endif
 728         default:
 729                 debug("Unsupported OS image.. Jumping nevertheless..\n");
 730         }
 731 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
 732         debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
 733               gd->malloc_ptr / 1024);
 734 #endif
 735         bootstage_mark_name(spl_phase() == PHASE_TPL ? BOOTSTAGE_ID_END_TPL :
 736                             BOOTSTAGE_ID_END_SPL, "end " SPL_TPL_NAME);
 737 #ifdef CONFIG_BOOTSTAGE_STASH
 738         ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
 739                               CONFIG_BOOTSTAGE_STASH_SIZE);
 740         if (ret)
 741                 debug("Failed to stash bootstage: err=%d\n", ret);
 742 #endif
 743
 744         spl_board_prepare_for_boot();
 745         jump_to_image_no_args(&spl_image);
 746 }
 747
 748 /*
 749  * This requires UART clocks to be enabled.  In order for this to work the
 750  * caller must ensure that the gd pointer is valid.
 751  */
 752 void preloader_console_init(void)
 753 {
 754 #ifdef CONFIG_SPL_SERIAL_SUPPORT
 755         gd->baudrate = CONFIG_BAUDRATE;
 756
 757         serial_init();          /* serial communications setup */
 758
 759         gd->have_console = 1;
 760
 761 #if CONFIG_IS_ENABLED(BANNER_PRINT)
 762         puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
 763              U_BOOT_TIME " " U_BOOT_TZ ")\n");
 764 #endif
 765 #ifdef CONFIG_SPL_DISPLAY_PRINT
 766         spl_display_print();
 767 #endif
 768 #endif
 769 }
 770
 771 /**
 772  * This function is called before the stack is changed from initial stack to
 773  * relocated stack. It tries to dump the stack size used
 774  */
 775 __weak void spl_relocate_stack_check(void)
 776 {
 777 #if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
 778         ulong init_sp = gd->start_addr_sp;
 779         ulong stack_bottom = init_sp - CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK);
 780         u8 *ptr = (u8 *)stack_bottom;
 781         ulong i;
 782
 783         for (i = 0; i < CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK); i++) {
 784                 if (*ptr != CONFIG_VAL(SYS_STACK_F_CHECK_BYTE))
 785                         break;
 786                 ptr++;
 787         }
 788         printf("SPL initial stack usage: %lu bytes\n",
 789                CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK) - i);
 790 #endif
 791 }
 792
 793 /**
 794  * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
 795  *
 796  * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
 797  * for the main board_init_r() execution. This is typically because we need
 798  * more stack space for things like the MMC sub-system.
 799  *
 800  * This function calculates the stack position, copies the global_data into
 801  * place, sets the new gd (except for ARM, for which setting GD within a C
 802  * function may not always work) and returns the new stack position. The
 803  * caller is responsible for setting up the sp register and, in the case
 804  * of ARM, setting up gd.
 805  *
 806  * All of this is done using the same layout and alignments as done in
 807  * board_init_f_init_reserve() / board_init_f_alloc_reserve().
 808  *
 809  * @return new stack location, or 0 to use the same stack
 810  */
 811 ulong spl_relocate_stack_gd(void)
 812 {
 813 #ifdef CONFIG_SPL_STACK_R
 814         gd_t *new_gd;
 815         ulong ptr = CONFIG_SPL_STACK_R_ADDR;
 816
 817         if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
 818                 spl_relocate_stack_check();
 819
 820 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
 821         if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
 822                 debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
 823                       gd->malloc_ptr, gd->malloc_ptr / 1024);
 824                 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 825                 gd->malloc_base = ptr;
 826                 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 827                 gd->malloc_ptr = 0;
 828         }
 829 #endif
 830         /* Get stack position: use 8-byte alignment for ABI compliance */
 831         ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
 832         new_gd = (gd_t *)ptr;
 833         memcpy(new_gd, (void *)gd, sizeof(gd_t));
 834 #if CONFIG_IS_ENABLED(DM)
 835         dm_fixup_for_gd_move(new_gd);
 836 #endif
 837 #if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
 838         gd = new_gd;
 839 #endif
 840         return ptr;
 841 #else
 842         return 0;
 843 #endif
 844 }
 845
 846 #if defined(CONFIG_BOOTCOUNT_LIMIT) && \
 847         ((!defined(CONFIG_TPL_BUILD) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT)) || \
 848          (defined(CONFIG_TPL_BUILD) && !defined(CONFIG_TPL_BOOTCOUNT_LIMIT)))
 849 void bootcount_store(ulong a)
 850 {
 851 }
 852
 853 ulong bootcount_load(void)
 854 {
 855         return 0;
 856 }
 857 #endif