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 /*
  59  * Board-specific Platform code can reimplement show_boot_progress () if needed
  60  */
  61 __weak void show_boot_progress(int val) {}
  62
  63 #if defined(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) || \
  64         defined(CONFIG_SPL_ATF)
  65 /* weak, default platform-specific function to initialize dram banks */
  66 __weak int dram_init_banksize(void)
  67 {
  68         return 0;
  69 }
  70 #endif
  71
  72 /*
  73  * Default function to determine if u-boot or the OS should
  74  * be started. This implementation always returns 1.
  75  *
  76  * Please implement your own board specific funcion to do this.
  77  *
  78  * RETURN
  79  * 0 to not start u-boot
  80  * positive if u-boot should start
  81  */
  82 #ifdef CONFIG_SPL_OS_BOOT
  83 __weak int spl_start_uboot(void)
  84 {
  85         puts(SPL_TPL_PROMPT
  86              "Please implement spl_start_uboot() for your board\n");
  87         puts(SPL_TPL_PROMPT "Direct Linux boot not active!\n");
  88         return 1;
  89 }
  90
  91 /*
  92  * Weak default function for arch specific zImage check. Return zero
  93  * and fill start and end address if image is recognized.
  94  */
  95 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
  96 {
  97          return 1;
  98 }
  99 #endif
 100
 101 /* Weak default function for arch/board-specific fixups to the spl_image_info */
 102 void __weak spl_perform_fixups(struct spl_image_info *spl_image)
 103 {
 104 }
 105
 106 void spl_fixup_fdt(void *fdt_blob)
 107 {
 108 #if defined(CONFIG_SPL_OF_LIBFDT)
 109         int err;
 110
 111         if (!fdt_blob)
 112                 return;
 113
 114         err = fdt_check_header(fdt_blob);
 115         if (err < 0) {
 116                 printf("fdt_root: %s\n", fdt_strerror(err));
 117                 return;
 118         }
 119
 120         /* fixup the memory dt node */
 121         err = fdt_shrink_to_minimum(fdt_blob, 0);
 122         if (err == 0) {
 123                 printf(SPL_TPL_PROMPT "fdt_shrink_to_minimum err - %d\n", err);
 124                 return;
 125         }
 126
 127         err = arch_fixup_fdt(fdt_blob);
 128         if (err) {
 129                 printf(SPL_TPL_PROMPT "arch_fixup_fdt err - %d\n", err);
 130                 return;
 131         }
 132 #endif
 133 }
 134
 135 ulong spl_get_image_pos(void)
 136 {
 137         return spl_phase() == PHASE_TPL ?
 138                 binman_sym(ulong, spl, image_pos) :
 139                 binman_sym(ulong, u_boot_any, image_pos);
 140 }
 141
 142 ulong spl_get_image_size(void)
 143 {
 144         return spl_phase() == PHASE_TPL ?
 145                 binman_sym(ulong, spl, size) :
 146                 binman_sym(ulong, u_boot_any, size);
 147 }
 148
 149 ulong spl_get_image_text_base(void)
 150 {
 151         return spl_phase() == PHASE_TPL ? CONFIG_SPL_TEXT_BASE :
 152                 CONFIG_SYS_TEXT_BASE;
 153 }
 154
 155 /*
 156  * Weak default function for board specific cleanup/preparation before
 157  * Linux boot. Some boards/platforms might not need it, so just provide
 158  * an empty stub here.
 159  */
 160 __weak void spl_board_prepare_for_linux(void)
 161 {
 162         /* Nothing to do! */
 163 }
 164
 165 __weak void spl_board_prepare_for_boot(void)
 166 {
 167         /* Nothing to do! */
 168 }
 169
 170 __weak struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
 171 {
 172         return map_sysmem(CONFIG_SYS_TEXT_BASE + offset, 0);
 173 }
 174
 175 void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
 176 {
 177         ulong u_boot_pos = binman_sym(ulong, u_boot_any, image_pos);
 178
 179         spl_image->size = CONFIG_SYS_MONITOR_LEN;
 180
 181         /*
 182          * Binman error cases: address of the end of the previous region or the
 183          * start of the image's entry area (usually 0) if there is no previous
 184          * region.
 185          */
 186         if (u_boot_pos && u_boot_pos != BINMAN_SYM_MISSING) {
 187                 /* Binman does not support separated entry addresses */
 188                 spl_image->entry_point = u_boot_pos;
 189                 spl_image->load_addr = u_boot_pos;
 190         } else {
 191                 spl_image->entry_point = CONFIG_SYS_UBOOT_START;
 192                 spl_image->load_addr = CONFIG_SYS_TEXT_BASE;
 193         }
 194         spl_image->os = IH_OS_U_BOOT;
 195         spl_image->name = "U-Boot";
 196 }
 197
 198 #ifdef CONFIG_SPL_LOAD_FIT_FULL
 199 /* Parse and load full fitImage in SPL */
 200 static int spl_load_fit_image(struct spl_image_info *spl_image,
 201                               const struct image_header *header)
 202 {
 203         bootm_headers_t images;
 204         const char *fit_uname_config = NULL;
 205         uintptr_t fdt_hack;
 206         const char *uname;
 207         ulong fw_data = 0, dt_data = 0, img_data = 0;
 208         ulong fw_len = 0, dt_len = 0, img_len = 0;
 209         int idx, conf_noffset;
 210         int ret;
 211
 212 #ifdef CONFIG_SPL_FIT_SIGNATURE
 213         images.verify = 1;
 214 #endif
 215         ret = fit_image_load(&images, (ulong)header,
 216                              NULL, &fit_uname_config,
 217                              IH_ARCH_DEFAULT, IH_TYPE_STANDALONE, -1,
 218                              FIT_LOAD_OPTIONAL, &fw_data, &fw_len);
 219         if (ret >= 0) {
 220                 printf("DEPRECATED: 'standalone = ' property.");
 221                 printf("Please use either 'firmware =' or 'kernel ='\n");
 222         } else {
 223                 ret = fit_image_load(&images, (ulong)header, NULL,
 224                                      &fit_uname_config, IH_ARCH_DEFAULT,
 225                                      IH_TYPE_FIRMWARE, -1, FIT_LOAD_OPTIONAL,
 226                                      &fw_data, &fw_len);
 227         }
 228
 229         if (ret < 0) {
 230                 ret = fit_image_load(&images, (ulong)header, NULL,
 231                                      &fit_uname_config, IH_ARCH_DEFAULT,
 232                                      IH_TYPE_KERNEL, -1, FIT_LOAD_OPTIONAL,
 233                                      &fw_data, &fw_len);
 234         }
 235
 236         if (ret < 0)
 237                 return ret;
 238
 239         spl_image->size = fw_len;
 240         spl_image->entry_point = fw_data;
 241         spl_image->load_addr = fw_data;
 242         if (fit_image_get_os(header, ret, &spl_image->os))
 243                 spl_image->os = IH_OS_INVALID;
 244         spl_image->name = genimg_get_os_name(spl_image->os);
 245
 246         debug(SPL_TPL_PROMPT "payload image: %32s load addr: 0x%lx size: %d\n",
 247               spl_image->name, spl_image->load_addr, spl_image->size);
 248
 249 #ifdef CONFIG_SPL_FIT_SIGNATURE
 250         images.verify = 1;
 251 #endif
 252         ret = fit_image_load(&images, (ulong)header, NULL, &fit_uname_config,
 253                        IH_ARCH_DEFAULT, IH_TYPE_FLATDT, -1,
 254                        FIT_LOAD_OPTIONAL, &dt_data, &dt_len);
 255         if (ret >= 0) {
 256                 spl_image->fdt_addr = (void *)dt_data;
 257
 258                 if (spl_image->os == IH_OS_U_BOOT) {
 259                         /* HACK: U-boot expects FDT at a specific address */
 260                         fdt_hack = spl_image->load_addr + spl_image->size;
 261                         fdt_hack = (fdt_hack + 3) & ~3;
 262                         debug("Relocating FDT to %p\n", spl_image->fdt_addr);
 263                         memcpy((void *)fdt_hack, spl_image->fdt_addr, dt_len);
 264                 }
 265         }
 266
 267         conf_noffset = fit_conf_get_node((const void *)header,
 268                                          fit_uname_config);
 269         if (conf_noffset <= 0)
 270                 return 0;
 271
 272         for (idx = 0;
 273              uname = fdt_stringlist_get((const void *)header, conf_noffset,
 274                                         FIT_LOADABLE_PROP, idx,
 275                                 NULL), uname;
 276              idx++)
 277         {
 278 #ifdef CONFIG_SPL_FIT_SIGNATURE
 279                 images.verify = 1;
 280 #endif
 281                 ret = fit_image_load(&images, (ulong)header,
 282                                      &uname, &fit_uname_config,
 283                                      IH_ARCH_DEFAULT, IH_TYPE_LOADABLE, -1,
 284                                      FIT_LOAD_OPTIONAL_NON_ZERO,
 285                                      &img_data, &img_len);
 286                 if (ret < 0)
 287                         return ret;
 288         }
 289
 290         return 0;
 291 }
 292 #endif
 293
 294 __weak int spl_parse_legacy_header(struct spl_image_info *spl_image,
 295                                    const struct image_header *header)
 296 {
 297         /* LEGACY image not supported */
 298         debug("Legacy boot image support not enabled, proceeding to other boot methods\n");
 299         return -EINVAL;
 300 }
 301
 302 int spl_parse_image_header(struct spl_image_info *spl_image,
 303                            const struct image_header *header)
 304 {
 305 #ifdef CONFIG_SPL_LOAD_FIT_FULL
 306         int ret = spl_load_fit_image(spl_image, header);
 307
 308         if (!ret)
 309                 return ret;
 310 #endif
 311         if (image_get_magic(header) == IH_MAGIC) {
 312                 int ret;
 313
 314                 ret = spl_parse_legacy_header(spl_image, header);
 315                 if (ret)
 316                         return ret;
 317         } else {
 318 #ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
 319                 /*
 320                  * CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the
 321                  * code which loads images in SPL cannot guarantee that
 322                  * absolutely all read errors will be reported.
 323                  * An example is the LPC32XX MLC NAND driver, which
 324                  * will consider that a completely unreadable NAND block
 325                  * is bad, and thus should be skipped silently.
 326                  */
 327                 panic("** no mkimage signature but raw image not supported");
 328 #endif
 329
 330 #ifdef CONFIG_SPL_OS_BOOT
 331                 ulong start, end;
 332
 333                 if (!bootz_setup((ulong)header, &start, &end)) {
 334                         spl_image->name = "Linux";
 335                         spl_image->os = IH_OS_LINUX;
 336                         spl_image->load_addr = CONFIG_SYS_LOAD_ADDR;
 337                         spl_image->entry_point = CONFIG_SYS_LOAD_ADDR;
 338                         spl_image->size = end - start;
 339                         debug(SPL_TPL_PROMPT
 340                               "payload zImage, load addr: 0x%lx size: %d\n",
 341                               spl_image->load_addr, spl_image->size);
 342                         return 0;
 343                 }
 344 #endif
 345
 346 #ifdef CONFIG_SPL_RAW_IMAGE_SUPPORT
 347                 /* Signature not found - assume u-boot.bin */
 348                 debug("mkimage signature not found - ih_magic = %x\n",
 349                         header->ih_magic);
 350                 spl_set_header_raw_uboot(spl_image);
 351 #else
 352                 /* RAW image not supported, proceed to other boot methods. */
 353                 debug("Raw boot image support not enabled, proceeding to other boot methods\n");
 354                 return -EINVAL;
 355 #endif
 356         }
 357
 358         return 0;
 359 }
 360
 361 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
 362 {
 363         typedef void __noreturn (*image_entry_noargs_t)(void);
 364
 365         image_entry_noargs_t image_entry =
 366                 (image_entry_noargs_t)spl_image->entry_point;
 367
 368         debug("image entry point: 0x%lx\n", spl_image->entry_point);
 369         image_entry();
 370 }
 371
 372 #if CONFIG_IS_ENABLED(HANDOFF)
 373 /**
 374  * Set up the SPL hand-off information
 375  *
 376  * This is initially empty (zero) but can be written by
 377  */
 378 static int setup_spl_handoff(void)
 379 {
 380         struct spl_handoff *ho;
 381
 382         ho = bloblist_ensure(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
 383         if (!ho)
 384                 return -ENOENT;
 385
 386         return 0;
 387 }
 388
 389 __weak int handoff_arch_save(struct spl_handoff *ho)
 390 {
 391         return 0;
 392 }
 393
 394 static int write_spl_handoff(void)
 395 {
 396         struct spl_handoff *ho;
 397         int ret;
 398
 399         ho = bloblist_find(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
 400         if (!ho)
 401                 return -ENOENT;
 402         handoff_save_dram(ho);
 403         ret = handoff_arch_save(ho);
 404         if (ret)
 405                 return ret;
 406         debug(SPL_TPL_PROMPT "Wrote SPL handoff\n");
 407
 408         return 0;
 409 }
 410 #else
 411 static inline int setup_spl_handoff(void) { return 0; }
 412 static inline int write_spl_handoff(void) { return 0; }
 413
 414 #endif /* HANDOFF */
 415
 416 /**
 417  * get_bootstage_id() - Get the bootstage ID to emit
 418  *
 419  * @start: true if this is for starting SPL, false for ending it
 420  * @return bootstage ID to use
 421  */
 422 static enum bootstage_id get_bootstage_id(bool start)
 423 {
 424         enum u_boot_phase phase = spl_phase();
 425
 426         if (IS_ENABLED(CONFIG_TPL_BUILD) && phase == PHASE_TPL)
 427                 return start ? BOOTSTAGE_ID_START_TPL : BOOTSTAGE_ID_END_TPL;
 428         else
 429                 return start ? BOOTSTAGE_ID_START_SPL : BOOTSTAGE_ID_END_SPL;
 430 }
 431
 432 static int spl_common_init(bool setup_malloc)
 433 {
 434         int ret;
 435
 436 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
 437         if (setup_malloc) {
 438 #ifdef CONFIG_MALLOC_F_ADDR
 439                 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
 440 #endif
 441                 gd->malloc_limit = CONFIG_VAL(SYS_MALLOC_F_LEN);
 442                 gd->malloc_ptr = 0;
 443         }
 444 #endif
 445         ret = bootstage_init(u_boot_first_phase());
 446         if (ret) {
 447                 debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
 448                       ret);
 449                 return ret;
 450         }
 451 #ifdef CONFIG_BOOTSTAGE_STASH
 452         if (!u_boot_first_phase()) {
 453                 const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
 454                                                CONFIG_BOOTSTAGE_STASH_SIZE);
 455
 456                 ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
 457                 if (ret)
 458                         debug("%s: Failed to unstash bootstage: ret=%d\n",
 459                               __func__, ret);
 460         }
 461 #endif /* CONFIG_BOOTSTAGE_STASH */
 462         bootstage_mark_name(get_bootstage_id(true),
 463                             spl_phase_name(spl_phase()));
 464 #if CONFIG_IS_ENABLED(LOG)
 465         ret = log_init();
 466         if (ret) {
 467                 debug("%s: Failed to set up logging\n", __func__);
 468                 return ret;
 469         }
 470 #endif
 471         if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) {
 472                 ret = fdtdec_setup();
 473                 if (ret) {
 474                         debug("fdtdec_setup() returned error %d\n", ret);
 475                         return ret;
 476                 }
 477         }
 478         if (CONFIG_IS_ENABLED(DM)) {
 479                 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_SPL,
 480                                 spl_phase() == PHASE_TPL ? "dm tpl" : "dm_spl");
 481                 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
 482                 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
 483                 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_SPL);
 484                 if (ret) {
 485                         debug("dm_init_and_scan() returned error %d\n", ret);
 486                         return ret;
 487                 }
 488         }
 489
 490         return 0;
 491 }
 492
 493 int spl_alloc_bd(void)
 494 {
 495         /*
 496          * NOTE: On some platforms (e.g. x86) bdata may be in flash and not
 497          * writeable.
 498          */
 499         if (!gd->bd) {
 500                 gd->bd = malloc(sizeof(*gd->bd));
 501                 if (!gd->bd)
 502                         return -ENOMEM;
 503         }
 504
 505         return 0;
 506 }
 507
 508 int spl_early_init(void)
 509 {
 510         int ret;
 511
 512         debug("%s\n", __func__);
 513
 514         ret = spl_common_init(true);
 515         if (ret)
 516                 return ret;
 517         gd->flags |= GD_FLG_SPL_EARLY_INIT;
 518
 519         return 0;
 520 }
 521
 522 int spl_init(void)
 523 {
 524         int ret;
 525         bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
 526                         IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
 527
 528         debug("%s\n", __func__);
 529
 530         if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
 531                 ret = spl_common_init(setup_malloc);
 532                 if (ret)
 533                         return ret;
 534         }
 535         gd->flags |= GD_FLG_SPL_INIT;
 536
 537         return 0;
 538 }
 539
 540 #ifndef BOOT_DEVICE_NONE
 541 #define BOOT_DEVICE_NONE 0xdeadbeef
 542 #endif
 543
 544 __weak void board_boot_order(u32 *spl_boot_list)
 545 {
 546         spl_boot_list[0] = spl_boot_device();
 547 }
 548
 549 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
 550 {
 551         struct spl_image_loader *drv =
 552                 ll_entry_start(struct spl_image_loader, spl_image_loader);
 553         const int n_ents =
 554                 ll_entry_count(struct spl_image_loader, spl_image_loader);
 555         struct spl_image_loader *entry;
 556
 557         for (entry = drv; entry != drv + n_ents; entry++) {
 558                 if (boot_device == entry->boot_device)
 559                         return entry;
 560         }
 561
 562         /* Not found */
 563         return NULL;
 564 }
 565
 566 static int spl_load_image(struct spl_image_info *spl_image,
 567                           struct spl_image_loader *loader)
 568 {
 569         int ret;
 570         struct spl_boot_device bootdev;
 571
 572         bootdev.boot_device = loader->boot_device;
 573         bootdev.boot_device_name = NULL;
 574
 575         ret = loader->load_image(spl_image, &bootdev);
 576 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
 577         if (!ret && spl_image->dcrc_length) {
 578                 /* check data crc */
 579                 ulong dcrc = crc32_wd(0, (unsigned char *)spl_image->dcrc_data,
 580                                       spl_image->dcrc_length, CHUNKSZ_CRC32);
 581                 if (dcrc != spl_image->dcrc) {
 582                         puts("SPL: Image data CRC check failed!\n");
 583                         ret = -EINVAL;
 584                 }
 585         }
 586 #endif
 587         return ret;
 588 }
 589
 590 /**
 591  * boot_from_devices() - Try loading a booting U-Boot from a list of devices
 592  *
 593  * @spl_image: Place to put the image details if successful
 594  * @spl_boot_list: List of boot devices to try
 595  * @count: Number of elements in spl_boot_list
 596  * @return 0 if OK, -ve on error
 597  */
 598 static int boot_from_devices(struct spl_image_info *spl_image,
 599                              u32 spl_boot_list[], int count)
 600 {
 601         int i;
 602
 603         for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
 604                 struct spl_image_loader *loader;
 605
 606                 loader = spl_ll_find_loader(spl_boot_list[i]);
 607 #if defined(CONFIG_SPL_SERIAL_SUPPORT) \
 608     && defined(CONFIG_SPL_LIBCOMMON_SUPPORT)    \
 609     && !defined(CONFIG_SILENT_CONSOLE)
 610                 if (loader)
 611                         printf("Trying to boot from %s\n", loader->name);
 612                 else
 613                         puts(SPL_TPL_PROMPT "Unsupported Boot Device!\n");
 614 #endif
 615                 if (loader && !spl_load_image(spl_image, loader)) {
 616                         spl_image->boot_device = spl_boot_list[i];
 617                         return 0;
 618                 }
 619         }
 620
 621         return -ENODEV;
 622 }
 623
 624 #if defined(CONFIG_SPL_FRAMEWORK_BOARD_INIT_F)
 625 void board_init_f(ulong dummy)
 626 {
 627         if (CONFIG_IS_ENABLED(OF_CONTROL)) {
 628                 int ret;
 629
 630                 ret = spl_early_init();
 631                 if (ret) {
 632                         debug("spl_early_init() failed: %d\n", ret);
 633                         hang();
 634                 }
 635         }
 636
 637         preloader_console_init();
 638 }
 639 #endif
 640
 641 void board_init_r(gd_t *dummy1, ulong dummy2)
 642 {
 643         u32 spl_boot_list[] = {
 644                 BOOT_DEVICE_NONE,
 645                 BOOT_DEVICE_NONE,
 646                 BOOT_DEVICE_NONE,
 647                 BOOT_DEVICE_NONE,
 648                 BOOT_DEVICE_NONE,
 649         };
 650         struct spl_image_info spl_image;
 651         int ret;
 652
 653         debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
 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 (IS_ENABLED(CONFIG_SPL_ALLOC_BD) && spl_alloc_bd()) {
 665                 puts("Cannot alloc bd\n");
 666                 hang();
 667         }
 668 #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
 669         /*
 670          * timer_init() does not exist on PPC systems. The timer is initialized
 671          * and enabled (decrementer) in interrupt_init() here.
 672          */
 673         timer_init();
 674 #endif
 675         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 676                 ret = bloblist_init();
 677                 if (ret) {
 678                         debug("%s: Failed to set up bloblist: ret=%d\n",
 679                               __func__, ret);
 680                         puts(SPL_TPL_PROMPT "Cannot set up bloblist\n");
 681                         hang();
 682                 }
 683         }
 684         if (CONFIG_IS_ENABLED(HANDOFF)) {
 685                 int ret;
 686
 687                 ret = setup_spl_handoff();
 688                 if (ret) {
 689                         puts(SPL_TPL_PROMPT "Cannot set up SPL handoff\n");
 690                         hang();
 691                 }
 692         }
 693
 694 #if CONFIG_IS_ENABLED(BOARD_INIT)
 695         spl_board_init();
 696 #endif
 697
 698 #if defined(CONFIG_SPL_WATCHDOG_SUPPORT) && CONFIG_IS_ENABLED(WDT)
 699         initr_watchdog();
 700 #endif
 701
 702         if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) ||
 703             IS_ENABLED(CONFIG_SPL_ATF))
 704                 dram_init_banksize();
 705
 706         bootcount_inc();
 707
 708         memset(&spl_image, '\0', sizeof(spl_image));
 709 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
 710         spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
 711 #endif
 712         spl_image.boot_device = BOOT_DEVICE_NONE;
 713         board_boot_order(spl_boot_list);
 714
 715         if (boot_from_devices(&spl_image, spl_boot_list,
 716                               ARRAY_SIZE(spl_boot_list))) {
 717                 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
 718                 hang();
 719         }
 720
 721         spl_perform_fixups(&spl_image);
 722         if (CONFIG_IS_ENABLED(HANDOFF)) {
 723                 ret = write_spl_handoff();
 724                 if (ret)
 725                         printf(SPL_TPL_PROMPT
 726                                "SPL hand-off write failed (err=%d)\n", ret);
 727         }
 728         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 729                 ret = bloblist_finish();
 730                 if (ret)
 731                         printf("Warning: Failed to finish bloblist (ret=%d)\n",
 732                                ret);
 733         }
 734
 735 #ifdef CONFIG_CPU_V7M
 736         spl_image.entry_point |= 0x1;
 737 #endif
 738         switch (spl_image.os) {
 739         case IH_OS_U_BOOT:
 740                 debug("Jumping to %s...\n", spl_phase_name(spl_next_phase()));
 741                 break;
 742 #if CONFIG_IS_ENABLED(ATF)
 743         case IH_OS_ARM_TRUSTED_FIRMWARE:
 744                 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
 745                 spl_fixup_fdt(spl_image.fdt_addr);
 746                 spl_invoke_atf(&spl_image);
 747                 break;
 748 #endif
 749 #if CONFIG_IS_ENABLED(OPTEE)
 750         case IH_OS_TEE:
 751                 debug("Jumping to U-Boot via OP-TEE\n");
 752                 spl_optee_entry(NULL, NULL, spl_image.fdt_addr,
 753                                 (void *)spl_image.entry_point);
 754                 break;
 755 #endif
 756 #if CONFIG_IS_ENABLED(OPENSBI)
 757         case IH_OS_OPENSBI:
 758                 debug("Jumping to U-Boot via RISC-V OpenSBI\n");
 759                 spl_invoke_opensbi(&spl_image);
 760                 break;
 761 #endif
 762 #ifdef CONFIG_SPL_OS_BOOT
 763         case IH_OS_LINUX:
 764                 debug("Jumping to Linux\n");
 765 #if defined(CONFIG_SYS_SPL_ARGS_ADDR)
 766                 spl_fixup_fdt((void *)CONFIG_SYS_SPL_ARGS_ADDR);
 767 #endif
 768                 spl_board_prepare_for_linux();
 769                 jump_to_image_linux(&spl_image);
 770 #endif
 771         default:
 772                 debug("Unsupported OS image.. Jumping nevertheless..\n");
 773         }
 774 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
 775         debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
 776               gd->malloc_ptr / 1024);
 777 #endif
 778         bootstage_mark_name(get_bootstage_id(false), "end phase");
 779 #ifdef CONFIG_BOOTSTAGE_STASH
 780         ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
 781                               CONFIG_BOOTSTAGE_STASH_SIZE);
 782         if (ret)
 783                 debug("Failed to stash bootstage: err=%d\n", ret);
 784 #endif
 785
 786         spl_board_prepare_for_boot();
 787         jump_to_image_no_args(&spl_image);
 788 }
 789
 790 /*
 791  * This requires UART clocks to be enabled.  In order for this to work the
 792  * caller must ensure that the gd pointer is valid.
 793  */
 794 void preloader_console_init(void)
 795 {
 796 #ifdef CONFIG_SPL_SERIAL_SUPPORT
 797         gd->baudrate = CONFIG_BAUDRATE;
 798
 799         serial_init();          /* serial communications setup */
 800
 801         gd->have_console = 1;
 802
 803 #if CONFIG_IS_ENABLED(BANNER_PRINT)
 804         puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
 805              U_BOOT_TIME " " U_BOOT_TZ ")\n");
 806 #endif
 807 #ifdef CONFIG_SPL_DISPLAY_PRINT
 808         spl_display_print();
 809 #endif
 810 #endif
 811 }
 812
 813 /**
 814  * This function is called before the stack is changed from initial stack to
 815  * relocated stack. It tries to dump the stack size used
 816  */
 817 __weak void spl_relocate_stack_check(void)
 818 {
 819 #if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
 820         ulong init_sp = gd->start_addr_sp;
 821         ulong stack_bottom = init_sp - CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK);
 822         u8 *ptr = (u8 *)stack_bottom;
 823         ulong i;
 824
 825         for (i = 0; i < CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK); i++) {
 826                 if (*ptr != CONFIG_VAL(SYS_STACK_F_CHECK_BYTE))
 827                         break;
 828                 ptr++;
 829         }
 830         printf("SPL initial stack usage: %lu bytes\n",
 831                CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK) - i);
 832 #endif
 833 }
 834
 835 /**
 836  * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
 837  *
 838  * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
 839  * for the main board_init_r() execution. This is typically because we need
 840  * more stack space for things like the MMC sub-system.
 841  *
 842  * This function calculates the stack position, copies the global_data into
 843  * place, sets the new gd (except for ARM, for which setting GD within a C
 844  * function may not always work) and returns the new stack position. The
 845  * caller is responsible for setting up the sp register and, in the case
 846  * of ARM, setting up gd.
 847  *
 848  * All of this is done using the same layout and alignments as done in
 849  * board_init_f_init_reserve() / board_init_f_alloc_reserve().
 850  *
 851  * @return new stack location, or 0 to use the same stack
 852  */
 853 ulong spl_relocate_stack_gd(void)
 854 {
 855 #ifdef CONFIG_SPL_STACK_R
 856         gd_t *new_gd;
 857         ulong ptr = CONFIG_SPL_STACK_R_ADDR;
 858
 859         if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
 860                 spl_relocate_stack_check();
 861
 862 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
 863         if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
 864                 debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
 865                       gd->malloc_ptr, gd->malloc_ptr / 1024);
 866                 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 867                 gd->malloc_base = ptr;
 868                 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 869                 gd->malloc_ptr = 0;
 870         }
 871 #endif
 872         /* Get stack position: use 8-byte alignment for ABI compliance */
 873         ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
 874         new_gd = (gd_t *)ptr;
 875         memcpy(new_gd, (void *)gd, sizeof(gd_t));
 876 #if CONFIG_IS_ENABLED(DM)
 877         dm_fixup_for_gd_move(new_gd);
 878 #endif
 879 #if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
 880         gd = new_gd;
 881 #endif
 882         return ptr;
 883 #else
 884         return 0;
 885 #endif
 886 }
 887
 888 #if defined(CONFIG_BOOTCOUNT_LIMIT) && \
 889         ((!defined(CONFIG_TPL_BUILD) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT)) || \
 890          (defined(CONFIG_TPL_BUILD) && !defined(CONFIG_TPL_BOOTCOUNT_LIMIT)))
 891 void bootcount_store(ulong a)
 892 {
 893 }
 894
 895 ulong bootcount_load(void)
 896 {
 897         return 0;
 898 }
 899 #endif