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 <dm.h>
  13 #include <handoff.h>
  14 #include <irq_func.h>
  15 #include <serial.h>
  16 #include <spl.h>
  17 #include <asm/u-boot.h>
  18 #include <nand.h>
  19 #include <fat.h>
  20 #include <u-boot/crc.h>
  21 #include <version.h>
  22 #include <image.h>
  23 #include <malloc.h>
  24 #include <mapmem.h>
  25 #include <dm/root.h>
  26 #include <linux/compiler.h>
  27 #include <fdt_support.h>
  28 #include <bootcount.h>
  29 #include <wdt.h>
  30
  31 DECLARE_GLOBAL_DATA_PTR;
  32
  33 #ifndef CONFIG_SYS_UBOOT_START
  34 #define CONFIG_SYS_UBOOT_START  CONFIG_SYS_TEXT_BASE
  35 #endif
  36 #ifndef CONFIG_SYS_MONITOR_LEN
  37 /* Unknown U-Boot size, let's assume it will not be more than 200 KB */
  38 #define CONFIG_SYS_MONITOR_LEN  (200 * 1024)
  39 #endif
  40
  41 u32 *boot_params_ptr = NULL;
  42
  43 /* See spl.h for information about this */
  44 binman_sym_declare(ulong, u_boot_any, image_pos);
  45
  46 /* Define board data structure */
  47 static bd_t bdata __attribute__ ((section(".data")));
  48
  49 /*
  50  * Board-specific Platform code can reimplement show_boot_progress () if needed
  51  */
  52 __weak void show_boot_progress(int val) {}
  53
  54 #if defined(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF)
  55 /* weak, default platform-specific function to initialize dram banks */
  56 __weak int dram_init_banksize(void)
  57 {
  58         return 0;
  59 }
  60 #endif
  61
  62 /*
  63  * Default function to determine if u-boot or the OS should
  64  * be started. This implementation always returns 1.
  65  *
  66  * Please implement your own board specific funcion to do this.
  67  *
  68  * RETURN
  69  * 0 to not start u-boot
  70  * positive if u-boot should start
  71  */
  72 #ifdef CONFIG_SPL_OS_BOOT
  73 __weak int spl_start_uboot(void)
  74 {
  75         puts(SPL_TPL_PROMPT
  76              "Please implement spl_start_uboot() for your board\n");
  77         puts(SPL_TPL_PROMPT "Direct Linux boot not active!\n");
  78         return 1;
  79 }
  80
  81 /*
  82  * Weak default function for arch specific zImage check. Return zero
  83  * and fill start and end address if image is recognized.
  84  */
  85 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
  86 {
  87          return 1;
  88 }
  89 #endif
  90
  91 /* Weak default function for arch/board-specific fixups to the spl_image_info */
  92 void __weak spl_perform_fixups(struct spl_image_info *spl_image)
  93 {
  94 }
  95
  96 void spl_fixup_fdt(void)
  97 {
  98 #if defined(CONFIG_SPL_OF_LIBFDT) && defined(CONFIG_SYS_SPL_ARGS_ADDR)
  99         void *fdt_blob = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
 100         int err;
 101
 102         err = fdt_check_header(fdt_blob);
 103         if (err < 0) {
 104                 printf("fdt_root: %s\n", fdt_strerror(err));
 105                 return;
 106         }
 107
 108         /* fixup the memory dt node */
 109         err = fdt_shrink_to_minimum(fdt_blob, 0);
 110         if (err == 0) {
 111                 printf(SPL_TPL_PROMPT "fdt_shrink_to_minimum err - %d\n", err);
 112                 return;
 113         }
 114
 115         err = arch_fixup_fdt(fdt_blob);
 116         if (err) {
 117                 printf(SPL_TPL_PROMPT "arch_fixup_fdt err - %d\n", err);
 118                 return;
 119         }
 120 #endif
 121 }
 122
 123 /*
 124  * Weak default function for board specific cleanup/preparation before
 125  * Linux boot. Some boards/platforms might not need it, so just provide
 126  * an empty stub here.
 127  */
 128 __weak void spl_board_prepare_for_linux(void)
 129 {
 130         /* Nothing to do! */
 131 }
 132
 133 __weak void spl_board_prepare_for_boot(void)
 134 {
 135         /* Nothing to do! */
 136 }
 137
 138 __weak struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
 139 {
 140         return (struct image_header *)(CONFIG_SYS_TEXT_BASE + offset);
 141 }
 142
 143 void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
 144 {
 145         ulong u_boot_pos = binman_sym(ulong, u_boot_any, image_pos);
 146
 147         spl_image->size = CONFIG_SYS_MONITOR_LEN;
 148
 149         /*
 150          * Binman error cases: address of the end of the previous region or the
 151          * start of the image's entry area (usually 0) if there is no previous
 152          * region.
 153          */
 154         if (u_boot_pos && u_boot_pos != BINMAN_SYM_MISSING) {
 155                 /* Binman does not support separated entry addresses */
 156                 spl_image->entry_point = u_boot_pos;
 157                 spl_image->load_addr = u_boot_pos;
 158         } else {
 159                 spl_image->entry_point = CONFIG_SYS_UBOOT_START;
 160                 spl_image->load_addr = CONFIG_SYS_TEXT_BASE;
 161         }
 162         spl_image->os = IH_OS_U_BOOT;
 163         spl_image->name = "U-Boot";
 164 }
 165
 166 #ifdef CONFIG_SPL_LOAD_FIT_FULL
 167 /* Parse and load full fitImage in SPL */
 168 static int spl_load_fit_image(struct spl_image_info *spl_image,
 169                               const struct image_header *header)
 170 {
 171         bootm_headers_t images;
 172         const char *fit_uname_config = NULL;
 173         const char *fit_uname_fdt = FIT_FDT_PROP;
 174         const char *uname;
 175         ulong fw_data = 0, dt_data = 0, img_data = 0;
 176         ulong fw_len = 0, dt_len = 0, img_len = 0;
 177         int idx, conf_noffset;
 178         int ret;
 179
 180 #ifdef CONFIG_SPL_FIT_SIGNATURE
 181         images.verify = 1;
 182 #endif
 183         ret = fit_image_load(&images, (ulong)header,
 184                              NULL, &fit_uname_config,
 185                              IH_ARCH_DEFAULT, IH_TYPE_STANDALONE, -1,
 186                              FIT_LOAD_REQUIRED, &fw_data, &fw_len);
 187         if (ret < 0)
 188                 return ret;
 189
 190         spl_image->size = fw_len;
 191         spl_image->entry_point = fw_data;
 192         spl_image->load_addr = fw_data;
 193         spl_image->os = IH_OS_U_BOOT;
 194         spl_image->name = "U-Boot";
 195
 196         debug(SPL_TPL_PROMPT "payload image: %32s load addr: 0x%lx size: %d\n",
 197               spl_image->name, spl_image->load_addr, spl_image->size);
 198
 199 #ifdef CONFIG_SPL_FIT_SIGNATURE
 200         images.verify = 1;
 201 #endif
 202         ret = fit_image_load(&images, (ulong)header,
 203                        &fit_uname_fdt, &fit_uname_config,
 204                        IH_ARCH_DEFAULT, IH_TYPE_FLATDT, -1,
 205                        FIT_LOAD_OPTIONAL, &dt_data, &dt_len);
 206         if (ret >= 0)
 207                 spl_image->fdt_addr = (void *)dt_data;
 208
 209         conf_noffset = fit_conf_get_node((const void *)header,
 210                                          fit_uname_config);
 211         if (conf_noffset <= 0)
 212                 return 0;
 213
 214         for (idx = 0;
 215              uname = fdt_stringlist_get((const void *)header, conf_noffset,
 216                                         FIT_LOADABLE_PROP, idx,
 217                                 NULL), uname;
 218              idx++)
 219         {
 220 #ifdef CONFIG_SPL_FIT_SIGNATURE
 221                 images.verify = 1;
 222 #endif
 223                 ret = fit_image_load(&images, (ulong)header,
 224                                      &uname, &fit_uname_config,
 225                                      IH_ARCH_DEFAULT, IH_TYPE_LOADABLE, -1,
 226                                      FIT_LOAD_OPTIONAL_NON_ZERO,
 227                                      &img_data, &img_len);
 228                 if (ret < 0)
 229                         return ret;
 230         }
 231
 232         return 0;
 233 }
 234 #endif
 235
 236 int spl_parse_image_header(struct spl_image_info *spl_image,
 237                            const struct image_header *header)
 238 {
 239 #ifdef CONFIG_SPL_LOAD_FIT_FULL
 240         int ret = spl_load_fit_image(spl_image, header);
 241
 242         if (!ret)
 243                 return ret;
 244 #endif
 245         if (image_get_magic(header) == IH_MAGIC) {
 246 #ifdef CONFIG_SPL_LEGACY_IMAGE_SUPPORT
 247                 u32 header_size = sizeof(struct image_header);
 248
 249 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
 250                 /* check uImage header CRC */
 251                 if (!image_check_hcrc(header)) {
 252                         puts("SPL: Image header CRC check failed!\n");
 253                         return -EINVAL;
 254                 }
 255 #endif
 256
 257                 if (spl_image->flags & SPL_COPY_PAYLOAD_ONLY) {
 258                         /*
 259                          * On some system (e.g. powerpc), the load-address and
 260                          * entry-point is located at address 0. We can't load
 261                          * to 0-0x40. So skip header in this case.
 262                          */
 263                         spl_image->load_addr = image_get_load(header);
 264                         spl_image->entry_point = image_get_ep(header);
 265                         spl_image->size = image_get_data_size(header);
 266                 } else {
 267                         spl_image->entry_point = image_get_ep(header);
 268                         /* Load including the header */
 269                         spl_image->load_addr = image_get_load(header) -
 270                                 header_size;
 271                         spl_image->size = image_get_data_size(header) +
 272                                 header_size;
 273                 }
 274 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
 275                 /* store uImage data length and CRC to check later */
 276                 spl_image->dcrc_data = image_get_load(header);
 277                 spl_image->dcrc_length = image_get_data_size(header);
 278                 spl_image->dcrc = image_get_dcrc(header);
 279 #endif
 280
 281                 spl_image->os = image_get_os(header);
 282                 spl_image->name = image_get_name(header);
 283                 debug(SPL_TPL_PROMPT
 284                       "payload image: %32s load addr: 0x%lx size: %d\n",
 285                       spl_image->name, spl_image->load_addr, spl_image->size);
 286 #else
 287                 /* LEGACY image not supported */
 288                 debug("Legacy boot image support not enabled, proceeding to other boot methods\n");
 289                 return -EINVAL;
 290 #endif
 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 static int spl_common_init(bool setup_malloc)
 391 {
 392         int ret;
 393
 394 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
 395         if (setup_malloc) {
 396 #ifdef CONFIG_MALLOC_F_ADDR
 397                 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
 398 #endif
 399                 gd->malloc_limit = CONFIG_VAL(SYS_MALLOC_F_LEN);
 400                 gd->malloc_ptr = 0;
 401         }
 402 #endif
 403         ret = bootstage_init(u_boot_first_phase());
 404         if (ret) {
 405                 debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
 406                       ret);
 407                 return ret;
 408         }
 409 #ifdef CONFIG_BOOTSTAGE_STASH
 410         if (!u_boot_first_phase()) {
 411                 const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
 412                                                CONFIG_BOOTSTAGE_STASH_SIZE);
 413
 414                 ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
 415                 if (ret)
 416                         debug("%s: Failed to unstash bootstage: ret=%d\n",
 417                               __func__, ret);
 418         }
 419 #endif /* CONFIG_BOOTSTAGE_STASH */
 420         bootstage_mark_name(spl_phase() == PHASE_TPL ? BOOTSTAGE_ID_START_TPL :
 421                             BOOTSTAGE_ID_START_SPL, SPL_TPL_NAME);
 422 #if CONFIG_IS_ENABLED(LOG)
 423         ret = log_init();
 424         if (ret) {
 425                 debug("%s: Failed to set up logging\n", __func__);
 426                 return ret;
 427         }
 428 #endif
 429         if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) {
 430                 ret = fdtdec_setup();
 431                 if (ret) {
 432                         debug("fdtdec_setup() returned error %d\n", ret);
 433                         return ret;
 434                 }
 435         }
 436         if (CONFIG_IS_ENABLED(DM)) {
 437                 bootstage_start(BOOTSTATE_ID_ACCUM_DM_SPL,
 438                                 spl_phase() == PHASE_TPL ? "dm tpl" : "dm_spl");
 439                 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
 440                 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
 441                 bootstage_accum(BOOTSTATE_ID_ACCUM_DM_SPL);
 442                 if (ret) {
 443                         debug("dm_init_and_scan() returned error %d\n", ret);
 444                         return ret;
 445                 }
 446         }
 447
 448         return 0;
 449 }
 450
 451 void spl_set_bd(void)
 452 {
 453         /*
 454          * NOTE: On some platforms (e.g. x86) bdata may be in flash and not
 455          * writeable.
 456          */
 457         if (!gd->bd)
 458                 gd->bd = &bdata;
 459 }
 460
 461 int spl_early_init(void)
 462 {
 463         int ret;
 464
 465         debug("%s\n", __func__);
 466
 467         ret = spl_common_init(true);
 468         if (ret)
 469                 return ret;
 470         gd->flags |= GD_FLG_SPL_EARLY_INIT;
 471
 472         return 0;
 473 }
 474
 475 int spl_init(void)
 476 {
 477         int ret;
 478         bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
 479                         IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
 480
 481         debug("%s\n", __func__);
 482
 483         if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
 484                 ret = spl_common_init(setup_malloc);
 485                 if (ret)
 486                         return ret;
 487         }
 488         gd->flags |= GD_FLG_SPL_INIT;
 489
 490         return 0;
 491 }
 492
 493 #ifndef BOOT_DEVICE_NONE
 494 #define BOOT_DEVICE_NONE 0xdeadbeef
 495 #endif
 496
 497 __weak void board_boot_order(u32 *spl_boot_list)
 498 {
 499         spl_boot_list[0] = spl_boot_device();
 500 }
 501
 502 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
 503 {
 504         struct spl_image_loader *drv =
 505                 ll_entry_start(struct spl_image_loader, spl_image_loader);
 506         const int n_ents =
 507                 ll_entry_count(struct spl_image_loader, spl_image_loader);
 508         struct spl_image_loader *entry;
 509
 510         for (entry = drv; entry != drv + n_ents; entry++) {
 511                 if (boot_device == entry->boot_device)
 512                         return entry;
 513         }
 514
 515         /* Not found */
 516         return NULL;
 517 }
 518
 519 static int spl_load_image(struct spl_image_info *spl_image,
 520                           struct spl_image_loader *loader)
 521 {
 522         int ret;
 523         struct spl_boot_device bootdev;
 524
 525         bootdev.boot_device = loader->boot_device;
 526         bootdev.boot_device_name = NULL;
 527
 528         ret = loader->load_image(spl_image, &bootdev);
 529 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
 530         if (!ret && spl_image->dcrc_length) {
 531                 /* check data crc */
 532                 ulong dcrc = crc32_wd(0, (unsigned char *)spl_image->dcrc_data,
 533                                       spl_image->dcrc_length, CHUNKSZ_CRC32);
 534                 if (dcrc != spl_image->dcrc) {
 535                         puts("SPL: Image data CRC check failed!\n");
 536                         ret = -EINVAL;
 537                 }
 538         }
 539 #endif
 540         return ret;
 541 }
 542
 543 /**
 544  * boot_from_devices() - Try loading a booting U-Boot from a list of devices
 545  *
 546  * @spl_image: Place to put the image details if successful
 547  * @spl_boot_list: List of boot devices to try
 548  * @count: Number of elements in spl_boot_list
 549  * @return 0 if OK, -ve on error
 550  */
 551 static int boot_from_devices(struct spl_image_info *spl_image,
 552                              u32 spl_boot_list[], int count)
 553 {
 554         int i;
 555
 556         for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
 557                 struct spl_image_loader *loader;
 558
 559                 loader = spl_ll_find_loader(spl_boot_list[i]);
 560 #if defined(CONFIG_SPL_SERIAL_SUPPORT) && defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
 561                 if (loader)
 562                         printf("Trying to boot from %s\n", loader->name);
 563                 else
 564                         puts(SPL_TPL_PROMPT "Unsupported Boot Device!\n");
 565 #endif
 566                 if (loader && !spl_load_image(spl_image, loader)) {
 567                         spl_image->boot_device = spl_boot_list[i];
 568                         return 0;
 569                 }
 570         }
 571
 572         return -ENODEV;
 573 }
 574
 575 #if defined(CONFIG_SPL_FRAMEWORK_BOARD_INIT_F)
 576 void board_init_f(ulong dummy)
 577 {
 578         if (CONFIG_IS_ENABLED(OF_CONTROL)) {
 579                 int ret;
 580
 581                 ret = spl_early_init();
 582                 if (ret) {
 583                         debug("spl_early_init() failed: %d\n", ret);
 584                         hang();
 585                 }
 586         }
 587
 588         if (CONFIG_IS_ENABLED(SERIAL_SUPPORT))
 589                 preloader_console_init();
 590 }
 591 #endif
 592
 593 void board_init_r(gd_t *dummy1, ulong dummy2)
 594 {
 595         u32 spl_boot_list[] = {
 596                 BOOT_DEVICE_NONE,
 597                 BOOT_DEVICE_NONE,
 598                 BOOT_DEVICE_NONE,
 599                 BOOT_DEVICE_NONE,
 600                 BOOT_DEVICE_NONE,
 601         };
 602         struct spl_image_info spl_image;
 603         int ret;
 604
 605         debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
 606
 607         spl_set_bd();
 608
 609 #if defined(CONFIG_SYS_SPL_MALLOC_START)
 610         mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
 611                         CONFIG_SYS_SPL_MALLOC_SIZE);
 612         gd->flags |= GD_FLG_FULL_MALLOC_INIT;
 613 #endif
 614         if (!(gd->flags & GD_FLG_SPL_INIT)) {
 615                 if (spl_init())
 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                 dram_init_banksize();
 654
 655         bootcount_inc();
 656
 657         memset(&spl_image, '\0', sizeof(spl_image));
 658 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
 659         spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
 660 #endif
 661         spl_image.boot_device = BOOT_DEVICE_NONE;
 662         board_boot_order(spl_boot_list);
 663
 664         if (boot_from_devices(&spl_image, spl_boot_list,
 665                               ARRAY_SIZE(spl_boot_list))) {
 666                 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
 667                 hang();
 668         }
 669
 670         spl_perform_fixups(&spl_image);
 671         if (CONFIG_IS_ENABLED(HANDOFF)) {
 672                 ret = write_spl_handoff();
 673                 if (ret)
 674                         printf(SPL_TPL_PROMPT
 675                                "SPL hand-off write failed (err=%d)\n", ret);
 676         }
 677         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 678                 ret = bloblist_finish();
 679                 if (ret)
 680                         printf("Warning: Failed to finish bloblist (ret=%d)\n",
 681                                ret);
 682         }
 683
 684 #ifdef CONFIG_CPU_V7M
 685         spl_image.entry_point |= 0x1;
 686 #endif
 687         switch (spl_image.os) {
 688         case IH_OS_U_BOOT:
 689                 debug("Jumping to U-Boot\n");
 690                 break;
 691 #if CONFIG_IS_ENABLED(ATF)
 692         case IH_OS_ARM_TRUSTED_FIRMWARE:
 693                 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
 694                 spl_invoke_atf(&spl_image);
 695                 break;
 696 #endif
 697 #if CONFIG_IS_ENABLED(OPTEE)
 698         case IH_OS_TEE:
 699                 debug("Jumping to U-Boot via OP-TEE\n");
 700                 spl_optee_entry(NULL, NULL, spl_image.fdt_addr,
 701                                 (void *)spl_image.entry_point);
 702                 break;
 703 #endif
 704 #if CONFIG_IS_ENABLED(OPENSBI)
 705         case IH_OS_OPENSBI:
 706                 debug("Jumping to U-Boot via RISC-V OpenSBI\n");
 707                 spl_invoke_opensbi(&spl_image);
 708                 break;
 709 #endif
 710 #ifdef CONFIG_SPL_OS_BOOT
 711         case IH_OS_LINUX:
 712                 debug("Jumping to Linux\n");
 713                 spl_fixup_fdt();
 714                 spl_board_prepare_for_linux();
 715                 jump_to_image_linux(&spl_image);
 716 #endif
 717         default:
 718                 debug("Unsupported OS image.. Jumping nevertheless..\n");
 719         }
 720 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
 721         debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
 722               gd->malloc_ptr / 1024);
 723 #endif
 724         bootstage_mark_name(spl_phase() == PHASE_TPL ? BOOTSTAGE_ID_END_TPL :
 725                             BOOTSTAGE_ID_END_SPL, "end " SPL_TPL_NAME);
 726 #ifdef CONFIG_BOOTSTAGE_STASH
 727         ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
 728                               CONFIG_BOOTSTAGE_STASH_SIZE);
 729         if (ret)
 730                 debug("Failed to stash bootstage: err=%d\n", ret);
 731 #endif
 732
 733         debug("loaded - jumping to U-Boot...\n");
 734         spl_board_prepare_for_boot();
 735         jump_to_image_no_args(&spl_image);
 736 }
 737
 738 #ifdef CONFIG_SPL_SERIAL_SUPPORT
 739 /*
 740  * This requires UART clocks to be enabled.  In order for this to work the
 741  * caller must ensure that the gd pointer is valid.
 742  */
 743 void preloader_console_init(void)
 744 {
 745         gd->baudrate = CONFIG_BAUDRATE;
 746
 747         serial_init();          /* serial communications setup */
 748
 749         gd->have_console = 1;
 750
 751 #if CONFIG_IS_ENABLED(BANNER_PRINT)
 752         puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
 753              U_BOOT_TIME " " U_BOOT_TZ ")\n");
 754 #endif
 755 #ifdef CONFIG_SPL_DISPLAY_PRINT
 756         spl_display_print();
 757 #endif
 758 }
 759 #endif
 760
 761 /**
 762  * This function is called before the stack is changed from initial stack to
 763  * relocated stack. It tries to dump the stack size used
 764  */
 765 __weak void spl_relocate_stack_check(void)
 766 {
 767 #if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
 768         ulong init_sp = gd->start_addr_sp;
 769         ulong stack_bottom = init_sp - CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK);
 770         u8 *ptr = (u8 *)stack_bottom;
 771         ulong i;
 772
 773         for (i = 0; i < CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK); i++) {
 774                 if (*ptr != CONFIG_VAL(SYS_STACK_F_CHECK_BYTE))
 775                         break;
 776                 ptr++;
 777         }
 778         printf("SPL initial stack usage: %lu bytes\n",
 779                CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK) - i);
 780 #endif
 781 }
 782
 783 /**
 784  * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
 785  *
 786  * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
 787  * for the main board_init_r() execution. This is typically because we need
 788  * more stack space for things like the MMC sub-system.
 789  *
 790  * This function calculates the stack position, copies the global_data into
 791  * place, sets the new gd (except for ARM, for which setting GD within a C
 792  * function may not always work) and returns the new stack position. The
 793  * caller is responsible for setting up the sp register and, in the case
 794  * of ARM, setting up gd.
 795  *
 796  * All of this is done using the same layout and alignments as done in
 797  * board_init_f_init_reserve() / board_init_f_alloc_reserve().
 798  *
 799  * @return new stack location, or 0 to use the same stack
 800  */
 801 ulong spl_relocate_stack_gd(void)
 802 {
 803 #ifdef CONFIG_SPL_STACK_R
 804         gd_t *new_gd;
 805         ulong ptr = CONFIG_SPL_STACK_R_ADDR;
 806
 807         if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
 808                 spl_relocate_stack_check();
 809
 810 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
 811         if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
 812                 debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
 813                       gd->malloc_ptr, gd->malloc_ptr / 1024);
 814                 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 815                 gd->malloc_base = ptr;
 816                 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 817                 gd->malloc_ptr = 0;
 818         }
 819 #endif
 820         /* Get stack position: use 8-byte alignment for ABI compliance */
 821         ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
 822         new_gd = (gd_t *)ptr;
 823         memcpy(new_gd, (void *)gd, sizeof(gd_t));
 824 #if CONFIG_IS_ENABLED(DM)
 825         dm_fixup_for_gd_move(new_gd);
 826 #endif
 827 #if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
 828         gd = new_gd;
 829 #endif
 830         return ptr;
 831 #else
 832         return 0;
 833 #endif
 834 }
 835
 836 #if defined(CONFIG_BOOTCOUNT_LIMIT) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT)
 837 void bootcount_store(ulong a)
 838 {
 839 }
 840
 841 ulong bootcount_load(void)
 842 {
 843         return 0;
 844 }
 845 #endif