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         const char *fit_uname_fdt = FIT_FDT_PROP;
 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_REQUIRED, &fw_data, &fw_len);
 219         if (ret < 0)
 220                 return ret;
 221
 222         spl_image->size = fw_len;
 223         spl_image->entry_point = fw_data;
 224         spl_image->load_addr = fw_data;
 225         spl_image->os = IH_OS_U_BOOT;
 226         spl_image->name = "U-Boot";
 227
 228         debug(SPL_TPL_PROMPT "payload image: %32s load addr: 0x%lx size: %d\n",
 229               spl_image->name, spl_image->load_addr, spl_image->size);
 230
 231 #ifdef CONFIG_SPL_FIT_SIGNATURE
 232         images.verify = 1;
 233 #endif
 234         ret = fit_image_load(&images, (ulong)header,
 235                        &fit_uname_fdt, &fit_uname_config,
 236                        IH_ARCH_DEFAULT, IH_TYPE_FLATDT, -1,
 237                        FIT_LOAD_OPTIONAL, &dt_data, &dt_len);
 238         if (ret >= 0)
 239                 spl_image->fdt_addr = (void *)dt_data;
 240
 241         conf_noffset = fit_conf_get_node((const void *)header,
 242                                          fit_uname_config);
 243         if (conf_noffset <= 0)
 244                 return 0;
 245
 246         for (idx = 0;
 247              uname = fdt_stringlist_get((const void *)header, conf_noffset,
 248                                         FIT_LOADABLE_PROP, idx,
 249                                 NULL), uname;
 250              idx++)
 251         {
 252 #ifdef CONFIG_SPL_FIT_SIGNATURE
 253                 images.verify = 1;
 254 #endif
 255                 ret = fit_image_load(&images, (ulong)header,
 256                                      &uname, &fit_uname_config,
 257                                      IH_ARCH_DEFAULT, IH_TYPE_LOADABLE, -1,
 258                                      FIT_LOAD_OPTIONAL_NON_ZERO,
 259                                      &img_data, &img_len);
 260                 if (ret < 0)
 261                         return ret;
 262         }
 263
 264         return 0;
 265 }
 266 #endif
 267
 268 __weak int spl_parse_legacy_header(struct spl_image_info *spl_image,
 269                                    const struct image_header *header)
 270 {
 271         /* LEGACY image not supported */
 272         debug("Legacy boot image support not enabled, proceeding to other boot methods\n");
 273         return -EINVAL;
 274 }
 275
 276 int spl_parse_image_header(struct spl_image_info *spl_image,
 277                            const struct image_header *header)
 278 {
 279 #ifdef CONFIG_SPL_LOAD_FIT_FULL
 280         int ret = spl_load_fit_image(spl_image, header);
 281
 282         if (!ret)
 283                 return ret;
 284 #endif
 285         if (image_get_magic(header) == IH_MAGIC) {
 286                 int ret;
 287
 288                 ret = spl_parse_legacy_header(spl_image, header);
 289                 if (ret)
 290                         return ret;
 291         } else {
 292 #ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
 293                 /*
 294                  * CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the
 295                  * code which loads images in SPL cannot guarantee that
 296                  * absolutely all read errors will be reported.
 297                  * An example is the LPC32XX MLC NAND driver, which
 298                  * will consider that a completely unreadable NAND block
 299                  * is bad, and thus should be skipped silently.
 300                  */
 301                 panic("** no mkimage signature but raw image not supported");
 302 #endif
 303
 304 #ifdef CONFIG_SPL_OS_BOOT
 305                 ulong start, end;
 306
 307                 if (!bootz_setup((ulong)header, &start, &end)) {
 308                         spl_image->name = "Linux";
 309                         spl_image->os = IH_OS_LINUX;
 310                         spl_image->load_addr = CONFIG_SYS_LOAD_ADDR;
 311                         spl_image->entry_point = CONFIG_SYS_LOAD_ADDR;
 312                         spl_image->size = end - start;
 313                         debug(SPL_TPL_PROMPT
 314                               "payload zImage, load addr: 0x%lx size: %d\n",
 315                               spl_image->load_addr, spl_image->size);
 316                         return 0;
 317                 }
 318 #endif
 319
 320 #ifdef CONFIG_SPL_RAW_IMAGE_SUPPORT
 321                 /* Signature not found - assume u-boot.bin */
 322                 debug("mkimage signature not found - ih_magic = %x\n",
 323                         header->ih_magic);
 324                 spl_set_header_raw_uboot(spl_image);
 325 #else
 326                 /* RAW image not supported, proceed to other boot methods. */
 327                 debug("Raw boot image support not enabled, proceeding to other boot methods\n");
 328                 return -EINVAL;
 329 #endif
 330         }
 331
 332         return 0;
 333 }
 334
 335 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
 336 {
 337         typedef void __noreturn (*image_entry_noargs_t)(void);
 338
 339         image_entry_noargs_t image_entry =
 340                 (image_entry_noargs_t)spl_image->entry_point;
 341
 342         debug("image entry point: 0x%lx\n", spl_image->entry_point);
 343         image_entry();
 344 }
 345
 346 #if CONFIG_IS_ENABLED(HANDOFF)
 347 /**
 348  * Set up the SPL hand-off information
 349  *
 350  * This is initially empty (zero) but can be written by
 351  */
 352 static int setup_spl_handoff(void)
 353 {
 354         struct spl_handoff *ho;
 355
 356         ho = bloblist_ensure(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
 357         if (!ho)
 358                 return -ENOENT;
 359
 360         return 0;
 361 }
 362
 363 __weak int handoff_arch_save(struct spl_handoff *ho)
 364 {
 365         return 0;
 366 }
 367
 368 static int write_spl_handoff(void)
 369 {
 370         struct spl_handoff *ho;
 371         int ret;
 372
 373         ho = bloblist_find(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
 374         if (!ho)
 375                 return -ENOENT;
 376         handoff_save_dram(ho);
 377         ret = handoff_arch_save(ho);
 378         if (ret)
 379                 return ret;
 380         debug(SPL_TPL_PROMPT "Wrote SPL handoff\n");
 381
 382         return 0;
 383 }
 384 #else
 385 static inline int setup_spl_handoff(void) { return 0; }
 386 static inline int write_spl_handoff(void) { return 0; }
 387
 388 #endif /* HANDOFF */
 389
 390 static int spl_common_init(bool setup_malloc)
 391 {
 392         int ret;
 393
 394 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
 395         if (setup_malloc) {
 396 #ifdef CONFIG_MALLOC_F_ADDR
 397                 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
 398 #endif
 399                 gd->malloc_limit = CONFIG_VAL(SYS_MALLOC_F_LEN);
 400                 gd->malloc_ptr = 0;
 401         }
 402 #endif
 403         ret = bootstage_init(u_boot_first_phase());
 404         if (ret) {
 405                 debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
 406                       ret);
 407                 return ret;
 408         }
 409 #ifdef CONFIG_BOOTSTAGE_STASH
 410         if (!u_boot_first_phase()) {
 411                 const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
 412                                                CONFIG_BOOTSTAGE_STASH_SIZE);
 413
 414                 ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
 415                 if (ret)
 416                         debug("%s: Failed to unstash bootstage: ret=%d\n",
 417                               __func__, ret);
 418         }
 419 #endif /* CONFIG_BOOTSTAGE_STASH */
 420         bootstage_mark_name(spl_phase() == PHASE_TPL ? BOOTSTAGE_ID_START_TPL :
 421                             BOOTSTAGE_ID_START_SPL, SPL_TPL_NAME);
 422 #if CONFIG_IS_ENABLED(LOG)
 423         ret = log_init();
 424         if (ret) {
 425                 debug("%s: Failed to set up logging\n", __func__);
 426                 return ret;
 427         }
 428 #endif
 429         if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) {
 430                 ret = fdtdec_setup();
 431                 if (ret) {
 432                         debug("fdtdec_setup() returned error %d\n", ret);
 433                         return ret;
 434                 }
 435         }
 436         if (CONFIG_IS_ENABLED(DM)) {
 437                 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_SPL,
 438                                 spl_phase() == PHASE_TPL ? "dm tpl" : "dm_spl");
 439                 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
 440                 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
 441                 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_SPL);
 442                 if (ret) {
 443                         debug("dm_init_and_scan() returned error %d\n", ret);
 444                         return ret;
 445                 }
 446         }
 447
 448         return 0;
 449 }
 450
 451 int spl_alloc_bd(void)
 452 {
 453         /*
 454          * NOTE: On some platforms (e.g. x86) bdata may be in flash and not
 455          * writeable.
 456          */
 457         if (!gd->bd) {
 458                 gd->bd = malloc(sizeof(*gd->bd));
 459                 if (!gd->bd)
 460                         return -ENOMEM;
 461         }
 462
 463         return 0;
 464 }
 465
 466 int spl_early_init(void)
 467 {
 468         int ret;
 469
 470         debug("%s\n", __func__);
 471
 472         ret = spl_common_init(true);
 473         if (ret)
 474                 return ret;
 475         gd->flags |= GD_FLG_SPL_EARLY_INIT;
 476
 477         return 0;
 478 }
 479
 480 int spl_init(void)
 481 {
 482         int ret;
 483         bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
 484                         IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
 485
 486         debug("%s\n", __func__);
 487
 488         if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
 489                 ret = spl_common_init(setup_malloc);
 490                 if (ret)
 491                         return ret;
 492         }
 493         gd->flags |= GD_FLG_SPL_INIT;
 494
 495         return 0;
 496 }
 497
 498 #ifndef BOOT_DEVICE_NONE
 499 #define BOOT_DEVICE_NONE 0xdeadbeef
 500 #endif
 501
 502 __weak void board_boot_order(u32 *spl_boot_list)
 503 {
 504         spl_boot_list[0] = spl_boot_device();
 505 }
 506
 507 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
 508 {
 509         struct spl_image_loader *drv =
 510                 ll_entry_start(struct spl_image_loader, spl_image_loader);
 511         const int n_ents =
 512                 ll_entry_count(struct spl_image_loader, spl_image_loader);
 513         struct spl_image_loader *entry;
 514
 515         for (entry = drv; entry != drv + n_ents; entry++) {
 516                 if (boot_device == entry->boot_device)
 517                         return entry;
 518         }
 519
 520         /* Not found */
 521         return NULL;
 522 }
 523
 524 static int spl_load_image(struct spl_image_info *spl_image,
 525                           struct spl_image_loader *loader)
 526 {
 527         int ret;
 528         struct spl_boot_device bootdev;
 529
 530         bootdev.boot_device = loader->boot_device;
 531         bootdev.boot_device_name = NULL;
 532
 533         ret = loader->load_image(spl_image, &bootdev);
 534 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
 535         if (!ret && spl_image->dcrc_length) {
 536                 /* check data crc */
 537                 ulong dcrc = crc32_wd(0, (unsigned char *)spl_image->dcrc_data,
 538                                       spl_image->dcrc_length, CHUNKSZ_CRC32);
 539                 if (dcrc != spl_image->dcrc) {
 540                         puts("SPL: Image data CRC check failed!\n");
 541                         ret = -EINVAL;
 542                 }
 543         }
 544 #endif
 545         return ret;
 546 }
 547
 548 /**
 549  * boot_from_devices() - Try loading a booting U-Boot from a list of devices
 550  *
 551  * @spl_image: Place to put the image details if successful
 552  * @spl_boot_list: List of boot devices to try
 553  * @count: Number of elements in spl_boot_list
 554  * @return 0 if OK, -ve on error
 555  */
 556 static int boot_from_devices(struct spl_image_info *spl_image,
 557                              u32 spl_boot_list[], int count)
 558 {
 559         int i;
 560
 561         for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
 562                 struct spl_image_loader *loader;
 563
 564                 loader = spl_ll_find_loader(spl_boot_list[i]);
 565 #if defined(CONFIG_SPL_SERIAL_SUPPORT) \
 566     && defined(CONFIG_SPL_LIBCOMMON_SUPPORT)    \
 567     && !defined(CONFIG_SILENT_CONSOLE)
 568                 if (loader)
 569                         printf("Trying to boot from %s\n", loader->name);
 570                 else
 571                         puts(SPL_TPL_PROMPT "Unsupported Boot Device!\n");
 572 #endif
 573                 if (loader && !spl_load_image(spl_image, loader)) {
 574                         spl_image->boot_device = spl_boot_list[i];
 575                         return 0;
 576                 }
 577         }
 578
 579         return -ENODEV;
 580 }
 581
 582 #if defined(CONFIG_SPL_FRAMEWORK_BOARD_INIT_F)
 583 void board_init_f(ulong dummy)
 584 {
 585         if (CONFIG_IS_ENABLED(OF_CONTROL)) {
 586                 int ret;
 587
 588                 ret = spl_early_init();
 589                 if (ret) {
 590                         debug("spl_early_init() failed: %d\n", ret);
 591                         hang();
 592                 }
 593         }
 594
 595         preloader_console_init();
 596 }
 597 #endif
 598
 599 void board_init_r(gd_t *dummy1, ulong dummy2)
 600 {
 601         u32 spl_boot_list[] = {
 602                 BOOT_DEVICE_NONE,
 603                 BOOT_DEVICE_NONE,
 604                 BOOT_DEVICE_NONE,
 605                 BOOT_DEVICE_NONE,
 606                 BOOT_DEVICE_NONE,
 607         };
 608         struct spl_image_info spl_image;
 609         int ret;
 610
 611         debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
 612
 613 #if defined(CONFIG_SYS_SPL_MALLOC_START)
 614         mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
 615                         CONFIG_SYS_SPL_MALLOC_SIZE);
 616         gd->flags |= GD_FLG_FULL_MALLOC_INIT;
 617 #endif
 618         if (!(gd->flags & GD_FLG_SPL_INIT)) {
 619                 if (spl_init())
 620                         hang();
 621         }
 622         if (IS_ENABLED(CONFIG_SPL_ALLOC_BD) && spl_alloc_bd()) {
 623                 puts("Cannot alloc bd\n");
 624                 hang();
 625         }
 626 #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
 627         /*
 628          * timer_init() does not exist on PPC systems. The timer is initialized
 629          * and enabled (decrementer) in interrupt_init() here.
 630          */
 631         timer_init();
 632 #endif
 633         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 634                 ret = bloblist_init();
 635                 if (ret) {
 636                         debug("%s: Failed to set up bloblist: ret=%d\n",
 637                               __func__, ret);
 638                         puts(SPL_TPL_PROMPT "Cannot set up bloblist\n");
 639                         hang();
 640                 }
 641         }
 642         if (CONFIG_IS_ENABLED(HANDOFF)) {
 643                 int ret;
 644
 645                 ret = setup_spl_handoff();
 646                 if (ret) {
 647                         puts(SPL_TPL_PROMPT "Cannot set up SPL handoff\n");
 648                         hang();
 649                 }
 650         }
 651
 652 #if CONFIG_IS_ENABLED(BOARD_INIT)
 653         spl_board_init();
 654 #endif
 655
 656 #if defined(CONFIG_SPL_WATCHDOG_SUPPORT) && CONFIG_IS_ENABLED(WDT)
 657         initr_watchdog();
 658 #endif
 659
 660         if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) ||
 661             IS_ENABLED(CONFIG_SPL_ATF))
 662                 dram_init_banksize();
 663
 664         bootcount_inc();
 665
 666         memset(&spl_image, '\0', sizeof(spl_image));
 667 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
 668         spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
 669 #endif
 670         spl_image.boot_device = BOOT_DEVICE_NONE;
 671         board_boot_order(spl_boot_list);
 672
 673         if (boot_from_devices(&spl_image, spl_boot_list,
 674                               ARRAY_SIZE(spl_boot_list))) {
 675                 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
 676                 hang();
 677         }
 678
 679         spl_perform_fixups(&spl_image);
 680         if (CONFIG_IS_ENABLED(HANDOFF)) {
 681                 ret = write_spl_handoff();
 682                 if (ret)
 683                         printf(SPL_TPL_PROMPT
 684                                "SPL hand-off write failed (err=%d)\n", ret);
 685         }
 686         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 687                 ret = bloblist_finish();
 688                 if (ret)
 689                         printf("Warning: Failed to finish bloblist (ret=%d)\n",
 690                                ret);
 691         }
 692
 693 #ifdef CONFIG_CPU_V7M
 694         spl_image.entry_point |= 0x1;
 695 #endif
 696         switch (spl_image.os) {
 697         case IH_OS_U_BOOT:
 698                 debug("Jumping to %s...\n", spl_phase_name(spl_next_phase()));
 699                 break;
 700 #if CONFIG_IS_ENABLED(ATF)
 701         case IH_OS_ARM_TRUSTED_FIRMWARE:
 702                 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
 703                 spl_fixup_fdt(spl_image.fdt_addr);
 704                 spl_invoke_atf(&spl_image);
 705                 break;
 706 #endif
 707 #if CONFIG_IS_ENABLED(OPTEE)
 708         case IH_OS_TEE:
 709                 debug("Jumping to U-Boot via OP-TEE\n");
 710                 spl_optee_entry(NULL, NULL, spl_image.fdt_addr,
 711                                 (void *)spl_image.entry_point);
 712                 break;
 713 #endif
 714 #if CONFIG_IS_ENABLED(OPENSBI)
 715         case IH_OS_OPENSBI:
 716                 debug("Jumping to U-Boot via RISC-V OpenSBI\n");
 717                 spl_invoke_opensbi(&spl_image);
 718                 break;
 719 #endif
 720 #ifdef CONFIG_SPL_OS_BOOT
 721         case IH_OS_LINUX:
 722                 debug("Jumping to Linux\n");
 723 #if defined(CONFIG_SYS_SPL_ARGS_ADDR)
 724                 spl_fixup_fdt((void *)CONFIG_SYS_SPL_ARGS_ADDR);
 725 #endif
 726                 spl_board_prepare_for_linux();
 727                 jump_to_image_linux(&spl_image);
 728 #endif
 729         default:
 730                 debug("Unsupported OS image.. Jumping nevertheless..\n");
 731         }
 732 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
 733         debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
 734               gd->malloc_ptr / 1024);
 735 #endif
 736         bootstage_mark_name(spl_phase() == PHASE_TPL ? BOOTSTAGE_ID_END_TPL :
 737                             BOOTSTAGE_ID_END_SPL, "end " SPL_TPL_NAME);
 738 #ifdef CONFIG_BOOTSTAGE_STASH
 739         ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
 740                               CONFIG_BOOTSTAGE_STASH_SIZE);
 741         if (ret)
 742                 debug("Failed to stash bootstage: err=%d\n", ret);
 743 #endif
 744
 745         spl_board_prepare_for_boot();
 746         jump_to_image_no_args(&spl_image);
 747 }
 748
 749 /*
 750  * This requires UART clocks to be enabled.  In order for this to work the
 751  * caller must ensure that the gd pointer is valid.
 752  */
 753 void preloader_console_init(void)
 754 {
 755 #ifdef CONFIG_SPL_SERIAL_SUPPORT
 756         gd->baudrate = CONFIG_BAUDRATE;
 757
 758         serial_init();          /* serial communications setup */
 759
 760         gd->have_console = 1;
 761
 762 #if CONFIG_IS_ENABLED(BANNER_PRINT)
 763         puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
 764              U_BOOT_TIME " " U_BOOT_TZ ")\n");
 765 #endif
 766 #ifdef CONFIG_SPL_DISPLAY_PRINT
 767         spl_display_print();
 768 #endif
 769 #endif
 770 }
 771
 772 /**
 773  * This function is called before the stack is changed from initial stack to
 774  * relocated stack. It tries to dump the stack size used
 775  */
 776 __weak void spl_relocate_stack_check(void)
 777 {
 778 #if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
 779         ulong init_sp = gd->start_addr_sp;
 780         ulong stack_bottom = init_sp - CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK);
 781         u8 *ptr = (u8 *)stack_bottom;
 782         ulong i;
 783
 784         for (i = 0; i < CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK); i++) {
 785                 if (*ptr != CONFIG_VAL(SYS_STACK_F_CHECK_BYTE))
 786                         break;
 787                 ptr++;
 788         }
 789         printf("SPL initial stack usage: %lu bytes\n",
 790                CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK) - i);
 791 #endif
 792 }
 793
 794 /**
 795  * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
 796  *
 797  * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
 798  * for the main board_init_r() execution. This is typically because we need
 799  * more stack space for things like the MMC sub-system.
 800  *
 801  * This function calculates the stack position, copies the global_data into
 802  * place, sets the new gd (except for ARM, for which setting GD within a C
 803  * function may not always work) and returns the new stack position. The
 804  * caller is responsible for setting up the sp register and, in the case
 805  * of ARM, setting up gd.
 806  *
 807  * All of this is done using the same layout and alignments as done in
 808  * board_init_f_init_reserve() / board_init_f_alloc_reserve().
 809  *
 810  * @return new stack location, or 0 to use the same stack
 811  */
 812 ulong spl_relocate_stack_gd(void)
 813 {
 814 #ifdef CONFIG_SPL_STACK_R
 815         gd_t *new_gd;
 816         ulong ptr = CONFIG_SPL_STACK_R_ADDR;
 817
 818         if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
 819                 spl_relocate_stack_check();
 820
 821 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
 822         if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
 823                 debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
 824                       gd->malloc_ptr, gd->malloc_ptr / 1024);
 825                 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 826                 gd->malloc_base = ptr;
 827                 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 828                 gd->malloc_ptr = 0;
 829         }
 830 #endif
 831         /* Get stack position: use 8-byte alignment for ABI compliance */
 832         ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
 833         new_gd = (gd_t *)ptr;
 834         memcpy(new_gd, (void *)gd, sizeof(gd_t));
 835 #if CONFIG_IS_ENABLED(DM)
 836         dm_fixup_for_gd_move(new_gd);
 837 #endif
 838 #if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
 839         gd = new_gd;
 840 #endif
 841         return ptr;
 842 #else
 843         return 0;
 844 #endif
 845 }
 846
 847 #if defined(CONFIG_BOOTCOUNT_LIMIT) && \
 848         ((!defined(CONFIG_TPL_BUILD) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT)) || \
 849          (defined(CONFIG_TPL_BUILD) && !defined(CONFIG_TPL_BOOTCOUNT_LIMIT)))
 850 void bootcount_store(ulong a)
 851 {
 852 }
 853
 854 ulong bootcount_load(void)
 855 {
 856         return 0;
 857 }
 858 #endif