common/spl/spl.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2010
   4  * Texas Instruments, <www.ti.com>
   5  *
   6  * Aneesh V <aneesh@ti.com>
   7  */
   8
   9 #include <common.h>
  10 #include <bloblist.h>
  11 #include <binman_sym.h>
  12 #include <bootstage.h>
  13 #include <dm.h>
  14 #include <handoff.h>
  15 #include <hang.h>
  16 #include <init.h>
  17 #include <irq_func.h>
  18 #include <log.h>
  19 #include <mapmem.h>
  20 #include <serial.h>
  21 #include <spl.h>
  22 #include <asm/global_data.h>
  23 #include <asm/u-boot.h>
  24 #include <nand.h>
  25 #include <fat.h>
  26 #include <u-boot/crc.h>
  27 #include <version.h>
  28 #include <image.h>
  29 #include <malloc.h>
  30 #include <mapmem.h>
  31 #include <dm/root.h>
  32 #include <linux/compiler.h>
  33 #include <fdt_support.h>
  34 #include <bootcount.h>
  35 #include <wdt.h>
  36
  37 DECLARE_GLOBAL_DATA_PTR;
  38
  39 #ifndef CONFIG_SYS_UBOOT_START
  40 #define CONFIG_SYS_UBOOT_START  CONFIG_SYS_TEXT_BASE
  41 #endif
  42 #ifndef CONFIG_SYS_MONITOR_LEN
  43 /* Unknown U-Boot size, let's assume it will not be more than 200 KB */
  44 #define CONFIG_SYS_MONITOR_LEN  (200 * 1024)
  45 #endif
  46
  47 u32 *boot_params_ptr = NULL;
  48
  49 /* See spl.h for information about this */
  50 binman_sym_declare(ulong, u_boot_any, image_pos);
  51 binman_sym_declare(ulong, u_boot_any, size);
  52
  53 #ifdef CONFIG_TPL
  54 binman_sym_declare(ulong, spl, image_pos);
  55 binman_sym_declare(ulong, spl, size);
  56 #endif
  57
  58 /* Define board data structure */
  59 static struct bd_info bdata __attribute__ ((section(".data")));
  60
  61 /*
  62  * Board-specific Platform code can reimplement show_boot_progress () if needed
  63  */
  64 __weak void show_boot_progress(int val) {}
  65
  66 #if defined(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) || \
  67         defined(CONFIG_SPL_ATF)
  68 /* weak, default platform-specific function to initialize dram banks */
  69 __weak int dram_init_banksize(void)
  70 {
  71         return 0;
  72 }
  73 #endif
  74
  75 /*
  76  * Default function to determine if u-boot or the OS should
  77  * be started. This implementation always returns 1.
  78  *
  79  * Please implement your own board specific funcion to do this.
  80  *
  81  * RETURN
  82  * 0 to not start u-boot
  83  * positive if u-boot should start
  84  */
  85 #ifdef CONFIG_SPL_OS_BOOT
  86 __weak int spl_start_uboot(void)
  87 {
  88         puts(SPL_TPL_PROMPT
  89              "Please implement spl_start_uboot() for your board\n");
  90         puts(SPL_TPL_PROMPT "Direct Linux boot not active!\n");
  91         return 1;
  92 }
  93
  94 /*
  95  * Weak default function for arch specific zImage check. Return zero
  96  * and fill start and end address if image is recognized.
  97  */
  98 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
  99 {
 100          return 1;
 101 }
 102 #endif
 103
 104 /* Weak default function for arch/board-specific fixups to the spl_image_info */
 105 void __weak spl_perform_fixups(struct spl_image_info *spl_image)
 106 {
 107 }
 108
 109 void spl_fixup_fdt(void *fdt_blob)
 110 {
 111 #if defined(CONFIG_SPL_OF_LIBFDT)
 112         int err;
 113
 114         if (!fdt_blob)
 115                 return;
 116
 117         err = fdt_check_header(fdt_blob);
 118         if (err < 0) {
 119                 printf("fdt_root: %s\n", fdt_strerror(err));
 120                 return;
 121         }
 122
 123         /* fixup the memory dt node */
 124         err = fdt_shrink_to_minimum(fdt_blob, 0);
 125         if (err == 0) {
 126                 printf(SPL_TPL_PROMPT "fdt_shrink_to_minimum err - %d\n", err);
 127                 return;
 128         }
 129
 130         err = arch_fixup_fdt(fdt_blob);
 131         if (err) {
 132                 printf(SPL_TPL_PROMPT "arch_fixup_fdt err - %d\n", err);
 133                 return;
 134         }
 135 #endif
 136 }
 137
 138 ulong spl_get_image_pos(void)
 139 {
 140         return spl_phase() == PHASE_TPL ?
 141                 binman_sym(ulong, spl, image_pos) :
 142                 binman_sym(ulong, u_boot_any, image_pos);
 143 }
 144
 145 ulong spl_get_image_size(void)
 146 {
 147         return spl_phase() == PHASE_TPL ?
 148                 binman_sym(ulong, spl, size) :
 149                 binman_sym(ulong, u_boot_any, size);
 150 }
 151
 152 ulong spl_get_image_text_base(void)
 153 {
 154         return spl_phase() == PHASE_TPL ? CONFIG_SPL_TEXT_BASE :
 155                 CONFIG_SYS_TEXT_BASE;
 156 }
 157
 158 /*
 159  * Weak default function for board specific cleanup/preparation before
 160  * Linux boot. Some boards/platforms might not need it, so just provide
 161  * an empty stub here.
 162  */
 163 __weak void spl_board_prepare_for_linux(void)
 164 {
 165         /* Nothing to do! */
 166 }
 167
 168 __weak void spl_board_prepare_for_boot(void)
 169 {
 170         /* Nothing to do! */
 171 }
 172
 173 __weak struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
 174 {
 175         return map_sysmem(CONFIG_SYS_TEXT_BASE + offset, 0);
 176 }
 177
 178 void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
 179 {
 180         ulong u_boot_pos = binman_sym(ulong, u_boot_any, image_pos);
 181
 182         spl_image->size = CONFIG_SYS_MONITOR_LEN;
 183
 184         /*
 185          * Binman error cases: address of the end of the previous region or the
 186          * start of the image's entry area (usually 0) if there is no previous
 187          * region.
 188          */
 189         if (u_boot_pos && u_boot_pos != BINMAN_SYM_MISSING) {
 190                 /* Binman does not support separated entry addresses */
 191                 spl_image->entry_point = u_boot_pos;
 192                 spl_image->load_addr = u_boot_pos;
 193         } else {
 194                 spl_image->entry_point = CONFIG_SYS_UBOOT_START;
 195                 spl_image->load_addr = CONFIG_SYS_TEXT_BASE;
 196         }
 197         spl_image->os = IH_OS_U_BOOT;
 198         spl_image->name = "U-Boot";
 199 }
 200
 201 #ifdef CONFIG_SPL_LOAD_FIT_FULL
 202 /* Parse and load full fitImage in SPL */
 203 static int spl_load_fit_image(struct spl_image_info *spl_image,
 204                               const struct image_header *header)
 205 {
 206         bootm_headers_t images;
 207         const char *fit_uname_config = NULL;
 208         uintptr_t fdt_hack;
 209         const char *uname;
 210         ulong fw_data = 0, dt_data = 0, img_data = 0;
 211         ulong fw_len = 0, dt_len = 0, img_len = 0;
 212         int idx, conf_noffset;
 213         int ret;
 214
 215 #ifdef CONFIG_SPL_FIT_SIGNATURE
 216         images.verify = 1;
 217 #endif
 218         ret = fit_image_load(&images, (ulong)header,
 219                              NULL, &fit_uname_config,
 220                              IH_ARCH_DEFAULT, IH_TYPE_STANDALONE, -1,
 221                              FIT_LOAD_OPTIONAL, &fw_data, &fw_len);
 222         if (ret >= 0) {
 223                 printf("DEPRECATED: 'standalone = ' property.");
 224                 printf("Please use either 'firmware =' or 'kernel ='\n");
 225         } else {
 226                 ret = fit_image_load(&images, (ulong)header, NULL,
 227                                      &fit_uname_config, IH_ARCH_DEFAULT,
 228                                      IH_TYPE_FIRMWARE, -1, FIT_LOAD_OPTIONAL,
 229                                      &fw_data, &fw_len);
 230         }
 231
 232         if (ret < 0) {
 233                 ret = fit_image_load(&images, (ulong)header, NULL,
 234                                      &fit_uname_config, IH_ARCH_DEFAULT,
 235                                      IH_TYPE_KERNEL, -1, FIT_LOAD_OPTIONAL,
 236                                      &fw_data, &fw_len);
 237         }
 238
 239         if (ret < 0)
 240                 return ret;
 241
 242         spl_image->size = fw_len;
 243         spl_image->entry_point = fw_data;
 244         spl_image->load_addr = fw_data;
 245         if (fit_image_get_os(header, ret, &spl_image->os))
 246                 spl_image->os = IH_OS_INVALID;
 247         spl_image->name = genimg_get_os_name(spl_image->os);
 248
 249         debug(SPL_TPL_PROMPT "payload image: %32s load addr: 0x%lx size: %d\n",
 250               spl_image->name, spl_image->load_addr, spl_image->size);
 251
 252 #ifdef CONFIG_SPL_FIT_SIGNATURE
 253         images.verify = 1;
 254 #endif
 255         ret = fit_image_load(&images, (ulong)header, NULL, &fit_uname_config,
 256                        IH_ARCH_DEFAULT, IH_TYPE_FLATDT, -1,
 257                        FIT_LOAD_OPTIONAL, &dt_data, &dt_len);
 258         if (ret >= 0) {
 259                 spl_image->fdt_addr = (void *)dt_data;
 260
 261                 if (spl_image->os == IH_OS_U_BOOT) {
 262                         /* HACK: U-boot expects FDT at a specific address */
 263                         fdt_hack = spl_image->load_addr + spl_image->size;
 264                         fdt_hack = (fdt_hack + 3) & ~3;
 265                         debug("Relocating FDT to %p\n", spl_image->fdt_addr);
 266                         memcpy((void *)fdt_hack, spl_image->fdt_addr, dt_len);
 267                 }
 268         }
 269
 270         conf_noffset = fit_conf_get_node((const void *)header,
 271                                          fit_uname_config);
 272         if (conf_noffset <= 0)
 273                 return 0;
 274
 275         for (idx = 0;
 276              uname = fdt_stringlist_get((const void *)header, conf_noffset,
 277                                         FIT_LOADABLE_PROP, idx,
 278                                 NULL), uname;
 279              idx++)
 280         {
 281 #ifdef CONFIG_SPL_FIT_SIGNATURE
 282                 images.verify = 1;
 283 #endif
 284                 ret = fit_image_load(&images, (ulong)header,
 285                                      &uname, &fit_uname_config,
 286                                      IH_ARCH_DEFAULT, IH_TYPE_LOADABLE, -1,
 287                                      FIT_LOAD_OPTIONAL_NON_ZERO,
 288                                      &img_data, &img_len);
 289                 if (ret < 0)
 290                         return ret;
 291         }
 292
 293         return 0;
 294 }
 295 #endif
 296
 297 __weak int spl_parse_legacy_header(struct spl_image_info *spl_image,
 298                                    const struct image_header *header)
 299 {
 300         /* LEGACY image not supported */
 301         debug("Legacy boot image support not enabled, proceeding to other boot methods\n");
 302         return -EINVAL;
 303 }
 304
 305 int spl_parse_image_header(struct spl_image_info *spl_image,
 306                            const struct image_header *header)
 307 {
 308 #ifdef CONFIG_SPL_LOAD_FIT_FULL
 309         int ret = spl_load_fit_image(spl_image, header);
 310
 311         if (!ret)
 312                 return ret;
 313 #endif
 314         if (image_get_magic(header) == IH_MAGIC) {
 315                 int ret;
 316
 317                 ret = spl_parse_legacy_header(spl_image, header);
 318                 if (ret)
 319                         return ret;
 320         } else {
 321 #ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
 322                 /*
 323                  * CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the
 324                  * code which loads images in SPL cannot guarantee that
 325                  * absolutely all read errors will be reported.
 326                  * An example is the LPC32XX MLC NAND driver, which
 327                  * will consider that a completely unreadable NAND block
 328                  * is bad, and thus should be skipped silently.
 329                  */
 330                 panic("** no mkimage signature but raw image not supported");
 331 #endif
 332
 333 #ifdef CONFIG_SPL_OS_BOOT
 334                 ulong start, end;
 335
 336                 if (!bootz_setup((ulong)header, &start, &end)) {
 337                         spl_image->name = "Linux";
 338                         spl_image->os = IH_OS_LINUX;
 339                         spl_image->load_addr = CONFIG_SYS_LOAD_ADDR;
 340                         spl_image->entry_point = CONFIG_SYS_LOAD_ADDR;
 341                         spl_image->size = end - start;
 342                         debug(SPL_TPL_PROMPT
 343                               "payload zImage, load addr: 0x%lx size: %d\n",
 344                               spl_image->load_addr, spl_image->size);
 345                         return 0;
 346                 }
 347 #endif
 348
 349 #ifdef CONFIG_SPL_RAW_IMAGE_SUPPORT
 350                 /* Signature not found - assume u-boot.bin */
 351                 debug("mkimage signature not found - ih_magic = %x\n",
 352                         header->ih_magic);
 353                 spl_set_header_raw_uboot(spl_image);
 354 #else
 355                 /* RAW image not supported, proceed to other boot methods. */
 356                 debug("Raw boot image support not enabled, proceeding to other boot methods\n");
 357                 return -EINVAL;
 358 #endif
 359         }
 360
 361         return 0;
 362 }
 363
 364 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
 365 {
 366         typedef void __noreturn (*image_entry_noargs_t)(void);
 367
 368         image_entry_noargs_t image_entry =
 369                 (image_entry_noargs_t)spl_image->entry_point;
 370
 371         debug("image entry point: 0x%lx\n", spl_image->entry_point);
 372         image_entry();
 373 }
 374
 375 #if CONFIG_IS_ENABLED(HANDOFF)
 376 /**
 377  * Set up the SPL hand-off information
 378  *
 379  * This is initially empty (zero) but can be written by
 380  */
 381 static int setup_spl_handoff(void)
 382 {
 383         struct spl_handoff *ho;
 384
 385         ho = bloblist_ensure(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
 386         if (!ho)
 387                 return -ENOENT;
 388
 389         return 0;
 390 }
 391
 392 __weak int handoff_arch_save(struct spl_handoff *ho)
 393 {
 394         return 0;
 395 }
 396
 397 static int write_spl_handoff(void)
 398 {
 399         struct spl_handoff *ho;
 400         int ret;
 401
 402         ho = bloblist_find(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
 403         if (!ho)
 404                 return -ENOENT;
 405         handoff_save_dram(ho);
 406         ret = handoff_arch_save(ho);
 407         if (ret)
 408                 return ret;
 409         debug(SPL_TPL_PROMPT "Wrote SPL handoff\n");
 410
 411         return 0;
 412 }
 413 #else
 414 static inline int setup_spl_handoff(void) { return 0; }
 415 static inline int write_spl_handoff(void) { return 0; }
 416
 417 #endif /* HANDOFF */
 418
 419 /**
 420  * get_bootstage_id() - Get the bootstage ID to emit
 421  *
 422  * @start: true if this is for starting SPL, false for ending it
 423  * @return bootstage ID to use
 424  */
 425 static enum bootstage_id get_bootstage_id(bool start)
 426 {
 427         enum u_boot_phase phase = spl_phase();
 428
 429         if (IS_ENABLED(CONFIG_TPL_BUILD) && phase == PHASE_TPL)
 430                 return start ? BOOTSTAGE_ID_START_TPL : BOOTSTAGE_ID_END_TPL;
 431         else
 432                 return start ? BOOTSTAGE_ID_START_SPL : BOOTSTAGE_ID_END_SPL;
 433 }
 434
 435 static int spl_common_init(bool setup_malloc)
 436 {
 437         int ret;
 438
 439 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
 440         if (setup_malloc) {
 441 #ifdef CONFIG_MALLOC_F_ADDR
 442                 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
 443 #endif
 444                 gd->malloc_limit = CONFIG_VAL(SYS_MALLOC_F_LEN);
 445                 gd->malloc_ptr = 0;
 446         }
 447 #endif
 448         ret = bootstage_init(u_boot_first_phase());
 449         if (ret) {
 450                 debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
 451                       ret);
 452                 return ret;
 453         }
 454 #ifdef CONFIG_BOOTSTAGE_STASH
 455         if (!u_boot_first_phase()) {
 456                 const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
 457                                                CONFIG_BOOTSTAGE_STASH_SIZE);
 458
 459                 ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
 460                 if (ret)
 461                         debug("%s: Failed to unstash bootstage: ret=%d\n",
 462                               __func__, ret);
 463         }
 464 #endif /* CONFIG_BOOTSTAGE_STASH */
 465         bootstage_mark_name(get_bootstage_id(true),
 466                             spl_phase_name(spl_phase()));
 467 #if CONFIG_IS_ENABLED(LOG)
 468         ret = log_init();
 469         if (ret) {
 470                 debug("%s: Failed to set up logging\n", __func__);
 471                 return ret;
 472         }
 473 #endif
 474         if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) {
 475                 ret = fdtdec_setup();
 476                 if (ret) {
 477                         debug("fdtdec_setup() returned error %d\n", ret);
 478                         return ret;
 479                 }
 480         }
 481         if (CONFIG_IS_ENABLED(DM)) {
 482                 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_SPL,
 483                                 spl_phase() == PHASE_TPL ? "dm tpl" : "dm_spl");
 484                 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
 485                 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
 486                 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_SPL);
 487                 if (ret) {
 488                         debug("dm_init_and_scan() returned error %d\n", ret);
 489                         return ret;
 490                 }
 491         }
 492
 493         return 0;
 494 }
 495
 496 void spl_set_bd(void)
 497 {
 498         /*
 499          * NOTE: On some platforms (e.g. x86) bdata may be in flash and not
 500          * writeable.
 501          */
 502         if (!gd->bd)
 503                 gd->bd = &bdata;
 504 }
 505
 506 int spl_early_init(void)
 507 {
 508         int ret;
 509
 510         debug("%s\n", __func__);
 511
 512         ret = spl_common_init(true);
 513         if (ret)
 514                 return ret;
 515         gd->flags |= GD_FLG_SPL_EARLY_INIT;
 516
 517         return 0;
 518 }
 519
 520 int spl_init(void)
 521 {
 522         int ret;
 523         bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
 524                         IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
 525
 526         debug("%s\n", __func__);
 527
 528         if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
 529                 ret = spl_common_init(setup_malloc);
 530                 if (ret)
 531                         return ret;
 532         }
 533         gd->flags |= GD_FLG_SPL_INIT;
 534
 535         return 0;
 536 }
 537
 538 #ifndef BOOT_DEVICE_NONE
 539 #define BOOT_DEVICE_NONE 0xdeadbeef
 540 #endif
 541
 542 __weak void board_boot_order(u32 *spl_boot_list)
 543 {
 544         spl_boot_list[0] = spl_boot_device();
 545 }
 546
 547 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
 548 {
 549         struct spl_image_loader *drv =
 550                 ll_entry_start(struct spl_image_loader, spl_image_loader);
 551         const int n_ents =
 552                 ll_entry_count(struct spl_image_loader, spl_image_loader);
 553         struct spl_image_loader *entry;
 554
 555         for (entry = drv; entry != drv + n_ents; entry++) {
 556                 if (boot_device == entry->boot_device)
 557                         return entry;
 558         }
 559
 560         /* Not found */
 561         return NULL;
 562 }
 563
 564 static int spl_load_image(struct spl_image_info *spl_image,
 565                           struct spl_image_loader *loader)
 566 {
 567         int ret;
 568         struct spl_boot_device bootdev;
 569
 570         bootdev.boot_device = loader->boot_device;
 571         bootdev.boot_device_name = NULL;
 572
 573         ret = loader->load_image(spl_image, &bootdev);
 574 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
 575         if (!ret && spl_image->dcrc_length) {
 576                 /* check data crc */
 577                 ulong dcrc = crc32_wd(0, (unsigned char *)spl_image->dcrc_data,
 578                                       spl_image->dcrc_length, CHUNKSZ_CRC32);
 579                 if (dcrc != spl_image->dcrc) {
 580                         puts("SPL: Image data CRC check failed!\n");
 581                         ret = -EINVAL;
 582                 }
 583         }
 584 #endif
 585         return ret;
 586 }
 587
 588 /**
 589  * boot_from_devices() - Try loading a booting U-Boot from a list of devices
 590  *
 591  * @spl_image: Place to put the image details if successful
 592  * @spl_boot_list: List of boot devices to try
 593  * @count: Number of elements in spl_boot_list
 594  * @return 0 if OK, -ve on error
 595  */
 596 static int boot_from_devices(struct spl_image_info *spl_image,
 597                              u32 spl_boot_list[], int count)
 598 {
 599         int i;
 600
 601         for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
 602                 struct spl_image_loader *loader;
 603
 604                 loader = spl_ll_find_loader(spl_boot_list[i]);
 605 #if defined(CONFIG_SPL_SERIAL_SUPPORT) \
 606     && defined(CONFIG_SPL_LIBCOMMON_SUPPORT)    \
 607     && !defined(CONFIG_SILENT_CONSOLE)
 608                 if (loader)
 609                         printf("Trying to boot from %s\n", loader->name);
 610                 else
 611                         puts(SPL_TPL_PROMPT "Unsupported Boot Device!\n");
 612 #endif
 613                 if (loader && !spl_load_image(spl_image, loader)) {
 614                         spl_image->boot_device = spl_boot_list[i];
 615                         return 0;
 616                 }
 617         }
 618
 619         return -ENODEV;
 620 }
 621
 622 #if defined(CONFIG_SPL_FRAMEWORK_BOARD_INIT_F)
 623 void board_init_f(ulong dummy)
 624 {
 625         if (CONFIG_IS_ENABLED(OF_CONTROL)) {
 626                 int ret;
 627
 628                 ret = spl_early_init();
 629                 if (ret) {
 630                         debug("spl_early_init() failed: %d\n", ret);
 631                         hang();
 632                 }
 633         }
 634
 635         preloader_console_init();
 636 }
 637 #endif
 638
 639 void board_init_r(gd_t *dummy1, ulong dummy2)
 640 {
 641         u32 spl_boot_list[] = {
 642                 BOOT_DEVICE_NONE,
 643                 BOOT_DEVICE_NONE,
 644                 BOOT_DEVICE_NONE,
 645                 BOOT_DEVICE_NONE,
 646                 BOOT_DEVICE_NONE,
 647         };
 648         struct spl_image_info spl_image;
 649         int ret;
 650
 651         debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
 652
 653         spl_set_bd();
 654
 655 #if defined(CONFIG_SYS_SPL_MALLOC_START)
 656         mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
 657                         CONFIG_SYS_SPL_MALLOC_SIZE);
 658         gd->flags |= GD_FLG_FULL_MALLOC_INIT;
 659 #endif
 660         if (!(gd->flags & GD_FLG_SPL_INIT)) {
 661                 if (spl_init())
 662                         hang();
 663         }
 664 #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
 665         /*
 666          * timer_init() does not exist on PPC systems. The timer is initialized
 667          * and enabled (decrementer) in interrupt_init() here.
 668          */
 669         timer_init();
 670 #endif
 671         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 672                 ret = bloblist_init();
 673                 if (ret) {
 674                         debug("%s: Failed to set up bloblist: ret=%d\n",
 675                               __func__, ret);
 676                         puts(SPL_TPL_PROMPT "Cannot set up bloblist\n");
 677                         hang();
 678                 }
 679         }
 680         if (CONFIG_IS_ENABLED(HANDOFF)) {
 681                 int ret;
 682
 683                 ret = setup_spl_handoff();
 684                 if (ret) {
 685                         puts(SPL_TPL_PROMPT "Cannot set up SPL handoff\n");
 686                         hang();
 687                 }
 688         }
 689
 690 #if CONFIG_IS_ENABLED(BOARD_INIT)
 691         spl_board_init();
 692 #endif
 693
 694 #if defined(CONFIG_SPL_WATCHDOG_SUPPORT) && CONFIG_IS_ENABLED(WDT)
 695         initr_watchdog();
 696 #endif
 697
 698         if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) ||
 699             IS_ENABLED(CONFIG_SPL_ATF))
 700                 dram_init_banksize();
 701
 702         bootcount_inc();
 703
 704         memset(&spl_image, '\0', sizeof(spl_image));
 705 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
 706         spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
 707 #endif
 708         spl_image.boot_device = BOOT_DEVICE_NONE;
 709         board_boot_order(spl_boot_list);
 710
 711         if (boot_from_devices(&spl_image, spl_boot_list,
 712                               ARRAY_SIZE(spl_boot_list))) {
 713                 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
 714                 hang();
 715         }
 716
 717         spl_perform_fixups(&spl_image);
 718         if (CONFIG_IS_ENABLED(HANDOFF)) {
 719                 ret = write_spl_handoff();
 720                 if (ret)
 721                         printf(SPL_TPL_PROMPT
 722                                "SPL hand-off write failed (err=%d)\n", ret);
 723         }
 724         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 725                 ret = bloblist_finish();
 726                 if (ret)
 727                         printf("Warning: Failed to finish bloblist (ret=%d)\n",
 728                                ret);
 729         }
 730
 731 #ifdef CONFIG_CPU_V7M
 732         spl_image.entry_point |= 0x1;
 733 #endif
 734         switch (spl_image.os) {
 735         case IH_OS_U_BOOT:
 736                 debug("Jumping to %s...\n", spl_phase_name(spl_next_phase()));
 737                 break;
 738 #if CONFIG_IS_ENABLED(ATF)
 739         case IH_OS_ARM_TRUSTED_FIRMWARE:
 740                 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
 741                 spl_fixup_fdt(spl_image.fdt_addr);
 742                 spl_invoke_atf(&spl_image);
 743                 break;
 744 #endif
 745 #if CONFIG_IS_ENABLED(OPTEE)
 746         case IH_OS_TEE:
 747                 debug("Jumping to U-Boot via OP-TEE\n");
 748                 spl_optee_entry(NULL, NULL, spl_image.fdt_addr,
 749                                 (void *)spl_image.entry_point);
 750                 break;
 751 #endif
 752 #if CONFIG_IS_ENABLED(OPENSBI)
 753         case IH_OS_OPENSBI:
 754                 debug("Jumping to U-Boot via RISC-V OpenSBI\n");
 755                 spl_invoke_opensbi(&spl_image);
 756                 break;
 757 #endif
 758 #ifdef CONFIG_SPL_OS_BOOT
 759         case IH_OS_LINUX:
 760                 debug("Jumping to Linux\n");
 761 #if defined(CONFIG_SYS_SPL_ARGS_ADDR)
 762                 spl_fixup_fdt((void *)CONFIG_SYS_SPL_ARGS_ADDR);
 763 #endif
 764                 spl_board_prepare_for_linux();
 765                 jump_to_image_linux(&spl_image);
 766 #endif
 767         default:
 768                 debug("Unsupported OS image.. Jumping nevertheless..\n");
 769         }
 770 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
 771         debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
 772               gd->malloc_ptr / 1024);
 773 #endif
 774         bootstage_mark_name(get_bootstage_id(false), "end phase");
 775 #ifdef CONFIG_BOOTSTAGE_STASH
 776         ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
 777                               CONFIG_BOOTSTAGE_STASH_SIZE);
 778         if (ret)
 779                 debug("Failed to stash bootstage: err=%d\n", ret);
 780 #endif
 781
 782         spl_board_prepare_for_boot();
 783         jump_to_image_no_args(&spl_image);
 784 }
 785
 786 /*
 787  * This requires UART clocks to be enabled.  In order for this to work the
 788  * caller must ensure that the gd pointer is valid.
 789  */
 790 void preloader_console_init(void)
 791 {
 792 #ifdef CONFIG_SPL_SERIAL_SUPPORT
 793         gd->baudrate = CONFIG_BAUDRATE;
 794
 795         serial_init();          /* serial communications setup */
 796
 797         gd->have_console = 1;
 798
 799 #if CONFIG_IS_ENABLED(BANNER_PRINT)
 800         puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
 801              U_BOOT_TIME " " U_BOOT_TZ ")\n");
 802 #endif
 803 #ifdef CONFIG_SPL_DISPLAY_PRINT
 804         spl_display_print();
 805 #endif
 806 #endif
 807 }
 808
 809 /**
 810  * This function is called before the stack is changed from initial stack to
 811  * relocated stack. It tries to dump the stack size used
 812  */
 813 __weak void spl_relocate_stack_check(void)
 814 {
 815 #if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
 816         ulong init_sp = gd->start_addr_sp;
 817         ulong stack_bottom = init_sp - CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK);
 818         u8 *ptr = (u8 *)stack_bottom;
 819         ulong i;
 820
 821         for (i = 0; i < CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK); i++) {
 822                 if (*ptr != CONFIG_VAL(SYS_STACK_F_CHECK_BYTE))
 823                         break;
 824                 ptr++;
 825         }
 826         printf("SPL initial stack usage: %lu bytes\n",
 827                CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK) - i);
 828 #endif
 829 }
 830
 831 /**
 832  * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
 833  *
 834  * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
 835  * for the main board_init_r() execution. This is typically because we need
 836  * more stack space for things like the MMC sub-system.
 837  *
 838  * This function calculates the stack position, copies the global_data into
 839  * place, sets the new gd (except for ARM, for which setting GD within a C
 840  * function may not always work) and returns the new stack position. The
 841  * caller is responsible for setting up the sp register and, in the case
 842  * of ARM, setting up gd.
 843  *
 844  * All of this is done using the same layout and alignments as done in
 845  * board_init_f_init_reserve() / board_init_f_alloc_reserve().
 846  *
 847  * @return new stack location, or 0 to use the same stack
 848  */
 849 ulong spl_relocate_stack_gd(void)
 850 {
 851 #ifdef CONFIG_SPL_STACK_R
 852         gd_t *new_gd;
 853         ulong ptr = CONFIG_SPL_STACK_R_ADDR;
 854
 855         if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
 856                 spl_relocate_stack_check();
 857
 858 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
 859         if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
 860                 debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
 861                       gd->malloc_ptr, gd->malloc_ptr / 1024);
 862                 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 863                 gd->malloc_base = ptr;
 864                 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 865                 gd->malloc_ptr = 0;
 866         }
 867 #endif
 868         /* Get stack position: use 8-byte alignment for ABI compliance */
 869         ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
 870         new_gd = (gd_t *)ptr;
 871         memcpy(new_gd, (void *)gd, sizeof(gd_t));
 872 #if CONFIG_IS_ENABLED(DM)
 873         dm_fixup_for_gd_move(new_gd);
 874 #endif
 875 #if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
 876         gd = new_gd;
 877 #endif
 878         return ptr;
 879 #else
 880         return 0;
 881 #endif
 882 }
 883
 884 #if defined(CONFIG_BOOTCOUNT_LIMIT) && \
 885         ((!defined(CONFIG_TPL_BUILD) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT)) || \
 886          (defined(CONFIG_TPL_BUILD) && !defined(CONFIG_TPL_BOOTCOUNT_LIMIT)))
 887 void bootcount_store(ulong a)
 888 {
 889 }
 890
 891 ulong bootcount_load(void)
 892 {
 893         return 0;
 894 }
 895 #endif