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 <serial.h>
  15 #include <spl.h>
  16 #include <asm/u-boot.h>
  17 #include <nand.h>
  18 #include <fat.h>
  19 #include <u-boot/crc.h>
  20 #include <version.h>
  21 #include <image.h>
  22 #include <malloc.h>
  23 #include <mapmem.h>
  24 #include <dm/root.h>
  25 #include <linux/compiler.h>
  26 #include <fdt_support.h>
  27 #include <bootcount.h>
  28 #include <wdt.h>
  29
  30 DECLARE_GLOBAL_DATA_PTR;
  31
  32 #ifndef CONFIG_SYS_UBOOT_START
  33 #define CONFIG_SYS_UBOOT_START  CONFIG_SYS_TEXT_BASE
  34 #endif
  35 #ifndef CONFIG_SYS_MONITOR_LEN
  36 /* Unknown U-Boot size, let's assume it will not be more than 200 KB */
  37 #define CONFIG_SYS_MONITOR_LEN  (200 * 1024)
  38 #endif
  39
  40 u32 *boot_params_ptr = NULL;
  41
  42 /* See spl.h for information about this */
  43 binman_sym_declare(ulong, u_boot_any, image_pos);
  44
  45 /* Define board data structure */
  46 static bd_t bdata __attribute__ ((section(".data")));
  47
  48 /*
  49  * Board-specific Platform code can reimplement show_boot_progress () if needed
  50  */
  51 __weak void show_boot_progress(int val) {}
  52
  53 #if defined(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF)
  54 /* weak, default platform-specific function to initialize dram banks */
  55 __weak int dram_init_banksize(void)
  56 {
  57         return 0;
  58 }
  59 #endif
  60
  61 /*
  62  * Default function to determine if u-boot or the OS should
  63  * be started. This implementation always returns 1.
  64  *
  65  * Please implement your own board specific funcion to do this.
  66  *
  67  * RETURN
  68  * 0 to not start u-boot
  69  * positive if u-boot should start
  70  */
  71 #ifdef CONFIG_SPL_OS_BOOT
  72 __weak int spl_start_uboot(void)
  73 {
  74         puts(SPL_TPL_PROMPT
  75              "Please implement spl_start_uboot() for your board\n");
  76         puts(SPL_TPL_PROMPT "Direct Linux boot not active!\n");
  77         return 1;
  78 }
  79
  80 /*
  81  * Weak default function for arch specific zImage check. Return zero
  82  * and fill start and end address if image is recognized.
  83  */
  84 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
  85 {
  86          return 1;
  87 }
  88 #endif
  89
  90 /* Weak default function for arch/board-specific fixups to the spl_image_info */
  91 void __weak spl_perform_fixups(struct spl_image_info *spl_image)
  92 {
  93 }
  94
  95 void spl_fixup_fdt(void)
  96 {
  97 #if defined(CONFIG_SPL_OF_LIBFDT) && defined(CONFIG_SYS_SPL_ARGS_ADDR)
  98         void *fdt_blob = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
  99         int err;
 100
 101         err = fdt_check_header(fdt_blob);
 102         if (err < 0) {
 103                 printf("fdt_root: %s\n", fdt_strerror(err));
 104                 return;
 105         }
 106
 107         /* fixup the memory dt node */
 108         err = fdt_shrink_to_minimum(fdt_blob, 0);
 109         if (err == 0) {
 110                 printf(SPL_TPL_PROMPT "fdt_shrink_to_minimum err - %d\n", err);
 111                 return;
 112         }
 113
 114         err = arch_fixup_fdt(fdt_blob);
 115         if (err) {
 116                 printf(SPL_TPL_PROMPT "arch_fixup_fdt err - %d\n", err);
 117                 return;
 118         }
 119 #endif
 120 }
 121
 122 /*
 123  * Weak default function for board specific cleanup/preparation before
 124  * Linux boot. Some boards/platforms might not need it, so just provide
 125  * an empty stub here.
 126  */
 127 __weak void spl_board_prepare_for_linux(void)
 128 {
 129         /* Nothing to do! */
 130 }
 131
 132 __weak void spl_board_prepare_for_boot(void)
 133 {
 134         /* Nothing to do! */
 135 }
 136
 137 __weak struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
 138 {
 139         return (struct image_header *)(CONFIG_SYS_TEXT_BASE + offset);
 140 }
 141
 142 void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
 143 {
 144         ulong u_boot_pos = binman_sym(ulong, u_boot_any, image_pos);
 145
 146         spl_image->size = CONFIG_SYS_MONITOR_LEN;
 147
 148         /*
 149          * Binman error cases: address of the end of the previous region or the
 150          * start of the image's entry area (usually 0) if there is no previous
 151          * region.
 152          */
 153         if (u_boot_pos && u_boot_pos != BINMAN_SYM_MISSING) {
 154                 /* Binman does not support separated entry addresses */
 155                 spl_image->entry_point = u_boot_pos;
 156                 spl_image->load_addr = u_boot_pos;
 157         } else {
 158                 spl_image->entry_point = CONFIG_SYS_UBOOT_START;
 159                 spl_image->load_addr = CONFIG_SYS_TEXT_BASE;
 160         }
 161         spl_image->os = IH_OS_U_BOOT;
 162         spl_image->name = "U-Boot";
 163 }
 164
 165 #ifdef CONFIG_SPL_LOAD_FIT_FULL
 166 /* Parse and load full fitImage in SPL */
 167 static int spl_load_fit_image(struct spl_image_info *spl_image,
 168                               const struct image_header *header)
 169 {
 170         bootm_headers_t images;
 171         const char *fit_uname_config = NULL;
 172         const char *fit_uname_fdt = FIT_FDT_PROP;
 173         const char *uname;
 174         ulong fw_data = 0, dt_data = 0, img_data = 0;
 175         ulong fw_len = 0, dt_len = 0, img_len = 0;
 176         int idx, conf_noffset;
 177         int ret;
 178
 179 #ifdef CONFIG_SPL_FIT_SIGNATURE
 180         images.verify = 1;
 181 #endif
 182         ret = fit_image_load(&images, (ulong)header,
 183                              NULL, &fit_uname_config,
 184                              IH_ARCH_DEFAULT, IH_TYPE_STANDALONE, -1,
 185                              FIT_LOAD_REQUIRED, &fw_data, &fw_len);
 186         if (ret < 0)
 187                 return ret;
 188
 189         spl_image->size = fw_len;
 190         spl_image->entry_point = fw_data;
 191         spl_image->load_addr = fw_data;
 192         spl_image->os = IH_OS_U_BOOT;
 193         spl_image->name = "U-Boot";
 194
 195         debug(SPL_TPL_PROMPT "payload image: %32s load addr: 0x%lx size: %d\n",
 196               spl_image->name, spl_image->load_addr, spl_image->size);
 197
 198 #ifdef CONFIG_SPL_FIT_SIGNATURE
 199         images.verify = 1;
 200 #endif
 201         ret = fit_image_load(&images, (ulong)header,
 202                        &fit_uname_fdt, &fit_uname_config,
 203                        IH_ARCH_DEFAULT, IH_TYPE_FLATDT, -1,
 204                        FIT_LOAD_OPTIONAL, &dt_data, &dt_len);
 205         if (ret >= 0)
 206                 spl_image->fdt_addr = (void *)dt_data;
 207
 208         conf_noffset = fit_conf_get_node((const void *)header,
 209                                          fit_uname_config);
 210         if (conf_noffset <= 0)
 211                 return 0;
 212
 213         for (idx = 0;
 214              uname = fdt_stringlist_get((const void *)header, conf_noffset,
 215                                         FIT_LOADABLE_PROP, idx,
 216                                 NULL), uname;
 217              idx++)
 218         {
 219 #ifdef CONFIG_SPL_FIT_SIGNATURE
 220                 images.verify = 1;
 221 #endif
 222                 ret = fit_image_load(&images, (ulong)header,
 223                                      &uname, &fit_uname_config,
 224                                      IH_ARCH_DEFAULT, IH_TYPE_LOADABLE, -1,
 225                                      FIT_LOAD_OPTIONAL_NON_ZERO,
 226                                      &img_data, &img_len);
 227                 if (ret < 0)
 228                         return ret;
 229         }
 230
 231         return 0;
 232 }
 233 #endif
 234
 235 int spl_parse_image_header(struct spl_image_info *spl_image,
 236                            const struct image_header *header)
 237 {
 238 #ifdef CONFIG_SPL_LOAD_FIT_FULL
 239         int ret = spl_load_fit_image(spl_image, header);
 240
 241         if (!ret)
 242                 return ret;
 243 #endif
 244         if (image_get_magic(header) == IH_MAGIC) {
 245 #ifdef CONFIG_SPL_LEGACY_IMAGE_SUPPORT
 246                 u32 header_size = sizeof(struct image_header);
 247
 248 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
 249                 /* check uImage header CRC */
 250                 if (!image_check_hcrc(header)) {
 251                         puts("SPL: Image header CRC check failed!\n");
 252                         return -EINVAL;
 253                 }
 254 #endif
 255
 256                 if (spl_image->flags & SPL_COPY_PAYLOAD_ONLY) {
 257                         /*
 258                          * On some system (e.g. powerpc), the load-address and
 259                          * entry-point is located at address 0. We can't load
 260                          * to 0-0x40. So skip header in this case.
 261                          */
 262                         spl_image->load_addr = image_get_load(header);
 263                         spl_image->entry_point = image_get_ep(header);
 264                         spl_image->size = image_get_data_size(header);
 265                 } else {
 266                         spl_image->entry_point = image_get_load(header);
 267                         /* Load including the header */
 268                         spl_image->load_addr = spl_image->entry_point -
 269                                 header_size;
 270                         spl_image->size = image_get_data_size(header) +
 271                                 header_size;
 272                 }
 273 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
 274                 /* store uImage data length and CRC to check later */
 275                 spl_image->dcrc_data = image_get_load(header);
 276                 spl_image->dcrc_length = image_get_data_size(header);
 277                 spl_image->dcrc = image_get_dcrc(header);
 278 #endif
 279
 280                 spl_image->os = image_get_os(header);
 281                 spl_image->name = image_get_name(header);
 282                 debug(SPL_TPL_PROMPT
 283                       "payload image: %32s load addr: 0x%lx size: %d\n",
 284                       spl_image->name, spl_image->load_addr, spl_image->size);
 285 #else
 286                 /* LEGACY image not supported */
 287                 debug("Legacy boot image support not enabled, proceeding to other boot methods\n");
 288                 return -EINVAL;
 289 #endif
 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(BOOTSTATE_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(BOOTSTATE_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 void spl_set_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 = &bdata;
 458 }
 459
 460 int spl_early_init(void)
 461 {
 462         int ret;
 463
 464         debug("%s\n", __func__);
 465
 466         ret = spl_common_init(true);
 467         if (ret)
 468                 return ret;
 469         gd->flags |= GD_FLG_SPL_EARLY_INIT;
 470
 471         return 0;
 472 }
 473
 474 int spl_init(void)
 475 {
 476         int ret;
 477         bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
 478                         IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
 479
 480         debug("%s\n", __func__);
 481
 482         if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
 483                 ret = spl_common_init(setup_malloc);
 484                 if (ret)
 485                         return ret;
 486         }
 487         gd->flags |= GD_FLG_SPL_INIT;
 488
 489         return 0;
 490 }
 491
 492 #ifndef BOOT_DEVICE_NONE
 493 #define BOOT_DEVICE_NONE 0xdeadbeef
 494 #endif
 495
 496 __weak void board_boot_order(u32 *spl_boot_list)
 497 {
 498         spl_boot_list[0] = spl_boot_device();
 499 }
 500
 501 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
 502 {
 503         struct spl_image_loader *drv =
 504                 ll_entry_start(struct spl_image_loader, spl_image_loader);
 505         const int n_ents =
 506                 ll_entry_count(struct spl_image_loader, spl_image_loader);
 507         struct spl_image_loader *entry;
 508
 509         for (entry = drv; entry != drv + n_ents; entry++) {
 510                 if (boot_device == entry->boot_device)
 511                         return entry;
 512         }
 513
 514         /* Not found */
 515         return NULL;
 516 }
 517
 518 static int spl_load_image(struct spl_image_info *spl_image,
 519                           struct spl_image_loader *loader)
 520 {
 521         int ret;
 522         struct spl_boot_device bootdev;
 523
 524         bootdev.boot_device = loader->boot_device;
 525         bootdev.boot_device_name = NULL;
 526
 527         ret = loader->load_image(spl_image, &bootdev);
 528 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
 529         if (!ret && spl_image->dcrc_length) {
 530                 /* check data crc */
 531                 ulong dcrc = crc32_wd(0, (unsigned char *)spl_image->dcrc_data,
 532                                       spl_image->dcrc_length, CHUNKSZ_CRC32);
 533                 if (dcrc != spl_image->dcrc) {
 534                         puts("SPL: Image data CRC check failed!\n");
 535                         ret = -EINVAL;
 536                 }
 537         }
 538 #endif
 539         return ret;
 540 }
 541
 542 /**
 543  * boot_from_devices() - Try loading a booting U-Boot from a list of devices
 544  *
 545  * @spl_image: Place to put the image details if successful
 546  * @spl_boot_list: List of boot devices to try
 547  * @count: Number of elements in spl_boot_list
 548  * @return 0 if OK, -ve on error
 549  */
 550 static int boot_from_devices(struct spl_image_info *spl_image,
 551                              u32 spl_boot_list[], int count)
 552 {
 553         int i;
 554
 555         for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
 556                 struct spl_image_loader *loader;
 557
 558                 loader = spl_ll_find_loader(spl_boot_list[i]);
 559 #if defined(CONFIG_SPL_SERIAL_SUPPORT) && defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
 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         if (CONFIG_IS_ENABLED(SERIAL_SUPPORT))
 588                 preloader_console_init();
 589 }
 590 #endif
 591
 592 void board_init_r(gd_t *dummy1, ulong dummy2)
 593 {
 594         u32 spl_boot_list[] = {
 595                 BOOT_DEVICE_NONE,
 596                 BOOT_DEVICE_NONE,
 597                 BOOT_DEVICE_NONE,
 598                 BOOT_DEVICE_NONE,
 599                 BOOT_DEVICE_NONE,
 600         };
 601         struct spl_image_info spl_image;
 602         int ret;
 603
 604         debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
 605
 606         spl_set_bd();
 607
 608 #if defined(CONFIG_SYS_SPL_MALLOC_START)
 609         mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
 610                         CONFIG_SYS_SPL_MALLOC_SIZE);
 611         gd->flags |= GD_FLG_FULL_MALLOC_INIT;
 612 #endif
 613         if (!(gd->flags & GD_FLG_SPL_INIT)) {
 614                 if (spl_init())
 615                         hang();
 616         }
 617 #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
 618         /*
 619          * timer_init() does not exist on PPC systems. The timer is initialized
 620          * and enabled (decrementer) in interrupt_init() here.
 621          */
 622         timer_init();
 623 #endif
 624         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 625                 ret = bloblist_init();
 626                 if (ret) {
 627                         debug("%s: Failed to set up bloblist: ret=%d\n",
 628                               __func__, ret);
 629                         puts(SPL_TPL_PROMPT "Cannot set up bloblist\n");
 630                         hang();
 631                 }
 632         }
 633         if (CONFIG_IS_ENABLED(HANDOFF)) {
 634                 int ret;
 635
 636                 ret = setup_spl_handoff();
 637                 if (ret) {
 638                         puts(SPL_TPL_PROMPT "Cannot set up SPL handoff\n");
 639                         hang();
 640                 }
 641         }
 642
 643 #if CONFIG_IS_ENABLED(BOARD_INIT)
 644         spl_board_init();
 645 #endif
 646
 647 #if defined(CONFIG_SPL_WATCHDOG_SUPPORT) && CONFIG_IS_ENABLED(WDT)
 648         initr_watchdog();
 649 #endif
 650
 651         if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF))
 652                 dram_init_banksize();
 653
 654         bootcount_inc();
 655
 656         memset(&spl_image, '\0', sizeof(spl_image));
 657 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
 658         spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
 659 #endif
 660         spl_image.boot_device = BOOT_DEVICE_NONE;
 661         board_boot_order(spl_boot_list);
 662
 663         if (boot_from_devices(&spl_image, spl_boot_list,
 664                               ARRAY_SIZE(spl_boot_list))) {
 665                 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
 666                 hang();
 667         }
 668
 669         spl_perform_fixups(&spl_image);
 670         if (CONFIG_IS_ENABLED(HANDOFF)) {
 671                 ret = write_spl_handoff();
 672                 if (ret)
 673                         printf(SPL_TPL_PROMPT
 674                                "SPL hand-off write failed (err=%d)\n", ret);
 675         }
 676         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 677                 ret = bloblist_finish();
 678                 if (ret)
 679                         printf("Warning: Failed to finish bloblist (ret=%d)\n",
 680                                ret);
 681         }
 682
 683 #ifdef CONFIG_CPU_V7M
 684         spl_image.entry_point |= 0x1;
 685 #endif
 686         switch (spl_image.os) {
 687         case IH_OS_U_BOOT:
 688                 debug("Jumping to U-Boot\n");
 689                 break;
 690 #if CONFIG_IS_ENABLED(ATF)
 691         case IH_OS_ARM_TRUSTED_FIRMWARE:
 692                 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
 693                 spl_invoke_atf(&spl_image);
 694                 break;
 695 #endif
 696 #if CONFIG_IS_ENABLED(OPTEE)
 697         case IH_OS_TEE:
 698                 debug("Jumping to U-Boot via OP-TEE\n");
 699                 spl_optee_entry(NULL, NULL, spl_image.fdt_addr,
 700                                 (void *)spl_image.entry_point);
 701                 break;
 702 #endif
 703 #if CONFIG_IS_ENABLED(OPENSBI)
 704         case IH_OS_OPENSBI:
 705                 debug("Jumping to U-Boot via RISC-V OpenSBI\n");
 706                 spl_invoke_opensbi(&spl_image);
 707                 break;
 708 #endif
 709 #ifdef CONFIG_SPL_OS_BOOT
 710         case IH_OS_LINUX:
 711                 debug("Jumping to Linux\n");
 712                 spl_fixup_fdt();
 713                 spl_board_prepare_for_linux();
 714                 jump_to_image_linux(&spl_image);
 715 #endif
 716         default:
 717                 debug("Unsupported OS image.. Jumping nevertheless..\n");
 718         }
 719 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
 720         debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
 721               gd->malloc_ptr / 1024);
 722 #endif
 723         bootstage_mark_name(spl_phase() == PHASE_TPL ? BOOTSTAGE_ID_END_TPL :
 724                             BOOTSTAGE_ID_END_SPL, "end " SPL_TPL_NAME);
 725 #ifdef CONFIG_BOOTSTAGE_STASH
 726         ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
 727                               CONFIG_BOOTSTAGE_STASH_SIZE);
 728         if (ret)
 729                 debug("Failed to stash bootstage: err=%d\n", ret);
 730 #endif
 731
 732         debug("loaded - jumping to U-Boot...\n");
 733         spl_board_prepare_for_boot();
 734         jump_to_image_no_args(&spl_image);
 735 }
 736
 737 #ifdef CONFIG_SPL_SERIAL_SUPPORT
 738 /*
 739  * This requires UART clocks to be enabled.  In order for this to work the
 740  * caller must ensure that the gd pointer is valid.
 741  */
 742 void preloader_console_init(void)
 743 {
 744         gd->baudrate = CONFIG_BAUDRATE;
 745
 746         serial_init();          /* serial communications setup */
 747
 748         gd->have_console = 1;
 749
 750 #if CONFIG_IS_ENABLED(BANNER_PRINT)
 751         puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
 752              U_BOOT_TIME " " U_BOOT_TZ ")\n");
 753 #endif
 754 #ifdef CONFIG_SPL_DISPLAY_PRINT
 755         spl_display_print();
 756 #endif
 757 }
 758 #endif
 759
 760 /**
 761  * This function is called before the stack is changed from initial stack to
 762  * relocated stack. It tries to dump the stack size used
 763  */
 764 __weak void spl_relocate_stack_check(void)
 765 {
 766 #if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
 767         ulong init_sp = gd->start_addr_sp;
 768         ulong stack_bottom = init_sp - CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK);
 769         u8 *ptr = (u8 *)stack_bottom;
 770         ulong i;
 771
 772         for (i = 0; i < CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK); i++) {
 773                 if (*ptr != CONFIG_VAL(SYS_STACK_F_CHECK_BYTE))
 774                         break;
 775                 ptr++;
 776         }
 777         printf("SPL initial stack usage: %lu bytes\n",
 778                CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK) - i);
 779 #endif
 780 }
 781
 782 /**
 783  * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
 784  *
 785  * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
 786  * for the main board_init_r() execution. This is typically because we need
 787  * more stack space for things like the MMC sub-system.
 788  *
 789  * This function calculates the stack position, copies the global_data into
 790  * place, sets the new gd (except for ARM, for which setting GD within a C
 791  * function may not always work) and returns the new stack position. The
 792  * caller is responsible for setting up the sp register and, in the case
 793  * of ARM, setting up gd.
 794  *
 795  * All of this is done using the same layout and alignments as done in
 796  * board_init_f_init_reserve() / board_init_f_alloc_reserve().
 797  *
 798  * @return new stack location, or 0 to use the same stack
 799  */
 800 ulong spl_relocate_stack_gd(void)
 801 {
 802 #ifdef CONFIG_SPL_STACK_R
 803         gd_t *new_gd;
 804         ulong ptr = CONFIG_SPL_STACK_R_ADDR;
 805
 806         if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
 807                 spl_relocate_stack_check();
 808
 809 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
 810         if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
 811                 debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
 812                       gd->malloc_ptr, gd->malloc_ptr / 1024);
 813                 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 814                 gd->malloc_base = ptr;
 815                 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 816                 gd->malloc_ptr = 0;
 817         }
 818 #endif
 819         /* Get stack position: use 8-byte alignment for ABI compliance */
 820         ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
 821         new_gd = (gd_t *)ptr;
 822         memcpy(new_gd, (void *)gd, sizeof(gd_t));
 823 #if CONFIG_IS_ENABLED(DM)
 824         dm_fixup_for_gd_move(new_gd);
 825 #endif
 826 #if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
 827         gd = new_gd;
 828 #endif
 829         return ptr;
 830 #else
 831         return 0;
 832 #endif
 833 }
 834
 835 #if defined(CONFIG_BOOTCOUNT_LIMIT) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT)
 836 void bootcount_store(ulong a)
 837 {
 838 }
 839
 840 ulong bootcount_load(void)
 841 {
 842         return 0;
 843 }
 844 #endif