common/spl/spl.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2010
   4  * Texas Instruments, <www.ti.com>
   5  *
   6  * Aneesh V <aneesh@ti.com>
   7  */
   8
   9 #include <common.h>
  10 #include <bloblist.h>
  11 #include <binman_sym.h>
  12 #include <dm.h>
  13 #include <handoff.h>
  14 #include <spl.h>
  15 #include <asm/u-boot.h>
  16 #include <nand.h>
  17 #include <fat.h>
  18 #include <version.h>
  19 #include <image.h>
  20 #include <malloc.h>
  21 #include <dm/root.h>
  22 #include <linux/compiler.h>
  23 #include <fdt_support.h>
  24 #include <bootcount.h>
  25
  26 DECLARE_GLOBAL_DATA_PTR;
  27
  28 #ifndef CONFIG_SYS_UBOOT_START
  29 #define CONFIG_SYS_UBOOT_START  CONFIG_SYS_TEXT_BASE
  30 #endif
  31 #ifndef CONFIG_SYS_MONITOR_LEN
  32 /* Unknown U-Boot size, let's assume it will not be more than 200 KB */
  33 #define CONFIG_SYS_MONITOR_LEN  (200 * 1024)
  34 #endif
  35
  36 u32 *boot_params_ptr = NULL;
  37
  38 /* See spl.h for information about this */
  39 binman_sym_declare(ulong, u_boot_any, image_pos);
  40
  41 /* Define board data structure */
  42 static bd_t bdata __attribute__ ((section(".data")));
  43
  44 /*
  45  * Board-specific Platform code can reimplement show_boot_progress () if needed
  46  */
  47 __weak void show_boot_progress(int val) {}
  48
  49 #if defined(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF)
  50 /* weak, default platform-specific function to initialize dram banks */
  51 __weak int dram_init_banksize(void)
  52 {
  53         return 0;
  54 }
  55 #endif
  56
  57 /*
  58  * Default function to determine if u-boot or the OS should
  59  * be started. This implementation always returns 1.
  60  *
  61  * Please implement your own board specific funcion to do this.
  62  *
  63  * RETURN
  64  * 0 to not start u-boot
  65  * positive if u-boot should start
  66  */
  67 #ifdef CONFIG_SPL_OS_BOOT
  68 __weak int spl_start_uboot(void)
  69 {
  70         puts(SPL_TPL_PROMPT
  71              "Please implement spl_start_uboot() for your board\n");
  72         puts(SPL_TPL_PROMPT "Direct Linux boot not active!\n");
  73         return 1;
  74 }
  75
  76 /*
  77  * Weak default function for arch specific zImage check. Return zero
  78  * and fill start and end address if image is recognized.
  79  */
  80 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
  81 {
  82          return 1;
  83 }
  84 #endif
  85
  86 /* Weak default function for arch/board-specific fixups to the spl_image_info */
  87 void __weak spl_perform_fixups(struct spl_image_info *spl_image)
  88 {
  89 }
  90
  91 void spl_fixup_fdt(void)
  92 {
  93 #if defined(CONFIG_SPL_OF_LIBFDT) && defined(CONFIG_SYS_SPL_ARGS_ADDR)
  94         void *fdt_blob = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
  95         int err;
  96
  97         err = fdt_check_header(fdt_blob);
  98         if (err < 0) {
  99                 printf("fdt_root: %s\n", fdt_strerror(err));
 100                 return;
 101         }
 102
 103         /* fixup the memory dt node */
 104         err = fdt_shrink_to_minimum(fdt_blob, 0);
 105         if (err == 0) {
 106                 printf(SPL_TPL_PROMPT "fdt_shrink_to_minimum err - %d\n", err);
 107                 return;
 108         }
 109
 110         err = arch_fixup_fdt(fdt_blob);
 111         if (err) {
 112                 printf(SPL_TPL_PROMPT "arch_fixup_fdt err - %d\n", err);
 113                 return;
 114         }
 115 #endif
 116 }
 117
 118 /*
 119  * Weak default function for board specific cleanup/preparation before
 120  * Linux boot. Some boards/platforms might not need it, so just provide
 121  * an empty stub here.
 122  */
 123 __weak void spl_board_prepare_for_linux(void)
 124 {
 125         /* Nothing to do! */
 126 }
 127
 128 __weak void spl_board_prepare_for_boot(void)
 129 {
 130         /* Nothing to do! */
 131 }
 132
 133 __weak struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
 134 {
 135         return (struct image_header *)(CONFIG_SYS_TEXT_BASE + offset);
 136 }
 137
 138 void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
 139 {
 140         ulong u_boot_pos = binman_sym(ulong, u_boot_any, image_pos);
 141
 142         spl_image->size = CONFIG_SYS_MONITOR_LEN;
 143
 144         /*
 145          * Binman error cases: address of the end of the previous region or the
 146          * start of the image's entry area (usually 0) if there is no previous
 147          * region.
 148          */
 149         if (u_boot_pos && u_boot_pos != BINMAN_SYM_MISSING) {
 150                 /* Binman does not support separated entry addresses */
 151                 spl_image->entry_point = u_boot_pos;
 152                 spl_image->load_addr = u_boot_pos;
 153         } else {
 154                 spl_image->entry_point = CONFIG_SYS_UBOOT_START;
 155                 spl_image->load_addr = CONFIG_SYS_TEXT_BASE;
 156         }
 157         spl_image->os = IH_OS_U_BOOT;
 158         spl_image->name = "U-Boot";
 159 }
 160
 161 #ifdef CONFIG_SPL_LOAD_FIT_FULL
 162 /* Parse and load full fitImage in SPL */
 163 static int spl_load_fit_image(struct spl_image_info *spl_image,
 164                               const struct image_header *header)
 165 {
 166         bootm_headers_t images;
 167         const char *fit_uname_config = NULL;
 168         const char *fit_uname_fdt = FIT_FDT_PROP;
 169         const char *uname;
 170         ulong fw_data = 0, dt_data = 0, img_data = 0;
 171         ulong fw_len = 0, dt_len = 0, img_len = 0;
 172         int idx, conf_noffset;
 173         int ret;
 174
 175 #ifdef CONFIG_SPL_FIT_SIGNATURE
 176         images.verify = 1;
 177 #endif
 178         ret = fit_image_load(&images, (ulong)header,
 179                              NULL, &fit_uname_config,
 180                              IH_ARCH_DEFAULT, IH_TYPE_STANDALONE, -1,
 181                              FIT_LOAD_REQUIRED, &fw_data, &fw_len);
 182         if (ret < 0)
 183                 return ret;
 184
 185         spl_image->size = fw_len;
 186         spl_image->entry_point = fw_data;
 187         spl_image->load_addr = fw_data;
 188         spl_image->os = IH_OS_U_BOOT;
 189         spl_image->name = "U-Boot";
 190
 191         debug(SPL_TPL_PROMPT "payload image: %32s load addr: 0x%lx size: %d\n",
 192               spl_image->name, spl_image->load_addr, spl_image->size);
 193
 194 #ifdef CONFIG_SPL_FIT_SIGNATURE
 195         images.verify = 1;
 196 #endif
 197         fit_image_load(&images, (ulong)header,
 198                        &fit_uname_fdt, &fit_uname_config,
 199                        IH_ARCH_DEFAULT, IH_TYPE_FLATDT, -1,
 200                        FIT_LOAD_OPTIONAL, &dt_data, &dt_len);
 201
 202         conf_noffset = fit_conf_get_node((const void *)header,
 203                                          fit_uname_config);
 204         if (conf_noffset <= 0)
 205                 return 0;
 206
 207         for (idx = 0;
 208              uname = fdt_stringlist_get((const void *)header, conf_noffset,
 209                                         FIT_LOADABLE_PROP, idx,
 210                                 NULL), uname;
 211              idx++)
 212         {
 213 #ifdef CONFIG_SPL_FIT_SIGNATURE
 214                 images.verify = 1;
 215 #endif
 216                 ret = fit_image_load(&images, (ulong)header,
 217                                      &uname, &fit_uname_config,
 218                                      IH_ARCH_DEFAULT, IH_TYPE_LOADABLE, -1,
 219                                      FIT_LOAD_OPTIONAL_NON_ZERO,
 220                                      &img_data, &img_len);
 221                 if (ret < 0)
 222                         return ret;
 223         }
 224
 225         return 0;
 226 }
 227 #endif
 228
 229 int spl_parse_image_header(struct spl_image_info *spl_image,
 230                            const struct image_header *header)
 231 {
 232 #ifdef CONFIG_SPL_LOAD_FIT_FULL
 233         int ret = spl_load_fit_image(spl_image, header);
 234
 235         if (!ret)
 236                 return ret;
 237 #endif
 238         if (image_get_magic(header) == IH_MAGIC) {
 239 #ifdef CONFIG_SPL_LEGACY_IMAGE_SUPPORT
 240                 u32 header_size = sizeof(struct image_header);
 241
 242                 if (spl_image->flags & SPL_COPY_PAYLOAD_ONLY) {
 243                         /*
 244                          * On some system (e.g. powerpc), the load-address and
 245                          * entry-point is located at address 0. We can't load
 246                          * to 0-0x40. So skip header in this case.
 247                          */
 248                         spl_image->load_addr = image_get_load(header);
 249                         spl_image->entry_point = image_get_ep(header);
 250                         spl_image->size = image_get_data_size(header);
 251                 } else {
 252                         spl_image->entry_point = image_get_load(header);
 253                         /* Load including the header */
 254                         spl_image->load_addr = spl_image->entry_point -
 255                                 header_size;
 256                         spl_image->size = image_get_data_size(header) +
 257                                 header_size;
 258                 }
 259                 spl_image->os = image_get_os(header);
 260                 spl_image->name = image_get_name(header);
 261                 debug(SPL_TPL_PROMPT
 262                       "payload image: %32s load addr: 0x%lx size: %d\n",
 263                       spl_image->name, spl_image->load_addr, spl_image->size);
 264 #else
 265                 /* LEGACY image not supported */
 266                 debug("Legacy boot image support not enabled, proceeding to other boot methods\n");
 267                 return -EINVAL;
 268 #endif
 269         } else {
 270 #ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
 271                 /*
 272                  * CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the
 273                  * code which loads images in SPL cannot guarantee that
 274                  * absolutely all read errors will be reported.
 275                  * An example is the LPC32XX MLC NAND driver, which
 276                  * will consider that a completely unreadable NAND block
 277                  * is bad, and thus should be skipped silently.
 278                  */
 279                 panic("** no mkimage signature but raw image not supported");
 280 #endif
 281
 282 #ifdef CONFIG_SPL_OS_BOOT
 283                 ulong start, end;
 284
 285                 if (!bootz_setup((ulong)header, &start, &end)) {
 286                         spl_image->name = "Linux";
 287                         spl_image->os = IH_OS_LINUX;
 288                         spl_image->load_addr = CONFIG_SYS_LOAD_ADDR;
 289                         spl_image->entry_point = CONFIG_SYS_LOAD_ADDR;
 290                         spl_image->size = end - start;
 291                         debug(SPL_TPL_PROMPT
 292                               "payload zImage, load addr: 0x%lx size: %d\n",
 293                               spl_image->load_addr, spl_image->size);
 294                         return 0;
 295                 }
 296 #endif
 297
 298 #ifdef CONFIG_SPL_RAW_IMAGE_SUPPORT
 299                 /* Signature not found - assume u-boot.bin */
 300                 debug("mkimage signature not found - ih_magic = %x\n",
 301                         header->ih_magic);
 302                 spl_set_header_raw_uboot(spl_image);
 303 #else
 304                 /* RAW image not supported, proceed to other boot methods. */
 305                 debug("Raw boot image support not enabled, proceeding to other boot methods\n");
 306                 return -EINVAL;
 307 #endif
 308         }
 309
 310         return 0;
 311 }
 312
 313 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
 314 {
 315         typedef void __noreturn (*image_entry_noargs_t)(void);
 316
 317         image_entry_noargs_t image_entry =
 318                 (image_entry_noargs_t)spl_image->entry_point;
 319
 320         debug("image entry point: 0x%lx\n", spl_image->entry_point);
 321         image_entry();
 322 }
 323
 324 #if CONFIG_IS_ENABLED(HANDOFF)
 325 /**
 326  * Set up the SPL hand-off information
 327  *
 328  * This is initially empty (zero) but can be written by
 329  */
 330 static int setup_spl_handoff(void)
 331 {
 332         struct spl_handoff *ho;
 333
 334         ho = bloblist_ensure(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
 335         if (!ho)
 336                 return -ENOENT;
 337
 338         return 0;
 339 }
 340
 341 static int write_spl_handoff(void)
 342 {
 343         struct spl_handoff *ho;
 344
 345         ho = bloblist_find(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
 346         if (!ho)
 347                 return -ENOENT;
 348         handoff_save_dram(ho);
 349 #ifdef CONFIG_SANDBOX
 350         ho->arch.magic = TEST_HANDOFF_MAGIC;
 351 #endif
 352         debug(SPL_TPL_PROMPT "Wrote SPL handoff\n");
 353
 354         return 0;
 355 }
 356 #else
 357 static inline int setup_spl_handoff(void) { return 0; }
 358 static inline int write_spl_handoff(void) { return 0; }
 359
 360 #endif /* HANDOFF */
 361
 362 static int spl_common_init(bool setup_malloc)
 363 {
 364         int ret;
 365
 366 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
 367         if (setup_malloc) {
 368 #ifdef CONFIG_MALLOC_F_ADDR
 369                 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
 370 #endif
 371                 gd->malloc_limit = CONFIG_VAL(SYS_MALLOC_F_LEN);
 372                 gd->malloc_ptr = 0;
 373         }
 374 #endif
 375         ret = bootstage_init(true);
 376         if (ret) {
 377                 debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
 378                       ret);
 379                 return ret;
 380         }
 381         bootstage_mark_name(BOOTSTAGE_ID_START_SPL, "spl");
 382 #if CONFIG_IS_ENABLED(LOG)
 383         ret = log_init();
 384         if (ret) {
 385                 debug("%s: Failed to set up logging\n", __func__);
 386                 return ret;
 387         }
 388 #endif
 389         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 390                 ret = bloblist_init();
 391                 if (ret) {
 392                         debug("%s: Failed to set up bloblist: ret=%d\n",
 393                               __func__, ret);
 394                         return ret;
 395                 }
 396         }
 397         if (CONFIG_IS_ENABLED(HANDOFF)) {
 398                 int ret;
 399
 400                 ret = setup_spl_handoff();
 401                 if (ret) {
 402                         puts(SPL_TPL_PROMPT "Cannot set up SPL handoff\n");
 403                         hang();
 404                 }
 405         }
 406         if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) {
 407                 ret = fdtdec_setup();
 408                 if (ret) {
 409                         debug("fdtdec_setup() returned error %d\n", ret);
 410                         return ret;
 411                 }
 412         }
 413         if (CONFIG_IS_ENABLED(DM)) {
 414                 bootstage_start(BOOTSTATE_ID_ACCUM_DM_SPL, "dm_spl");
 415                 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
 416                 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
 417                 bootstage_accum(BOOTSTATE_ID_ACCUM_DM_SPL);
 418                 if (ret) {
 419                         debug("dm_init_and_scan() returned error %d\n", ret);
 420                         return ret;
 421                 }
 422         }
 423
 424         return 0;
 425 }
 426
 427 void spl_set_bd(void)
 428 {
 429         /*
 430          * NOTE: On some platforms (e.g. x86) bdata may be in flash and not
 431          * writeable.
 432          */
 433         if (!gd->bd)
 434                 gd->bd = &bdata;
 435 }
 436
 437 int spl_early_init(void)
 438 {
 439         int ret;
 440
 441         debug("%s\n", __func__);
 442
 443         ret = spl_common_init(true);
 444         if (ret)
 445                 return ret;
 446         gd->flags |= GD_FLG_SPL_EARLY_INIT;
 447
 448         return 0;
 449 }
 450
 451 int spl_init(void)
 452 {
 453         int ret;
 454         bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
 455                         IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
 456
 457         debug("%s\n", __func__);
 458
 459         if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
 460                 ret = spl_common_init(setup_malloc);
 461                 if (ret)
 462                         return ret;
 463         }
 464         gd->flags |= GD_FLG_SPL_INIT;
 465
 466         return 0;
 467 }
 468
 469 #ifndef BOOT_DEVICE_NONE
 470 #define BOOT_DEVICE_NONE 0xdeadbeef
 471 #endif
 472
 473 __weak void board_boot_order(u32 *spl_boot_list)
 474 {
 475         spl_boot_list[0] = spl_boot_device();
 476 }
 477
 478 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
 479 {
 480         struct spl_image_loader *drv =
 481                 ll_entry_start(struct spl_image_loader, spl_image_loader);
 482         const int n_ents =
 483                 ll_entry_count(struct spl_image_loader, spl_image_loader);
 484         struct spl_image_loader *entry;
 485
 486         for (entry = drv; entry != drv + n_ents; entry++) {
 487                 if (boot_device == entry->boot_device)
 488                         return entry;
 489         }
 490
 491         /* Not found */
 492         return NULL;
 493 }
 494
 495 static int spl_load_image(struct spl_image_info *spl_image,
 496                           struct spl_image_loader *loader)
 497 {
 498         struct spl_boot_device bootdev;
 499
 500         bootdev.boot_device = loader->boot_device;
 501         bootdev.boot_device_name = NULL;
 502
 503         return loader->load_image(spl_image, &bootdev);
 504 }
 505
 506 /**
 507  * boot_from_devices() - Try loading an booting U-Boot from a list of devices
 508  *
 509  * @spl_image: Place to put the image details if successful
 510  * @spl_boot_list: List of boot devices to try
 511  * @count: Number of elements in spl_boot_list
 512  * @return 0 if OK, -ve on error
 513  */
 514 static int boot_from_devices(struct spl_image_info *spl_image,
 515                              u32 spl_boot_list[], int count)
 516 {
 517         int i;
 518
 519         for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
 520                 struct spl_image_loader *loader;
 521
 522                 loader = spl_ll_find_loader(spl_boot_list[i]);
 523 #if defined(CONFIG_SPL_SERIAL_SUPPORT) && defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
 524                 if (loader)
 525                         printf("Trying to boot from %s\n", loader->name);
 526                 else
 527                         puts(SPL_TPL_PROMPT "Unsupported Boot Device!\n");
 528 #endif
 529                 if (loader && !spl_load_image(spl_image, loader)) {
 530                         spl_image->boot_device = spl_boot_list[i];
 531                         return 0;
 532                 }
 533         }
 534
 535         return -ENODEV;
 536 }
 537
 538 void board_init_r(gd_t *dummy1, ulong dummy2)
 539 {
 540         u32 spl_boot_list[] = {
 541                 BOOT_DEVICE_NONE,
 542                 BOOT_DEVICE_NONE,
 543                 BOOT_DEVICE_NONE,
 544                 BOOT_DEVICE_NONE,
 545                 BOOT_DEVICE_NONE,
 546         };
 547         struct spl_image_info spl_image;
 548         int ret;
 549
 550         debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
 551
 552         spl_set_bd();
 553
 554 #if defined(CONFIG_SYS_SPL_MALLOC_START)
 555         mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
 556                         CONFIG_SYS_SPL_MALLOC_SIZE);
 557         gd->flags |= GD_FLG_FULL_MALLOC_INIT;
 558 #endif
 559         if (!(gd->flags & GD_FLG_SPL_INIT)) {
 560                 if (spl_init())
 561                         hang();
 562         }
 563 #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
 564         /*
 565          * timer_init() does not exist on PPC systems. The timer is initialized
 566          * and enabled (decrementer) in interrupt_init() here.
 567          */
 568         timer_init();
 569 #endif
 570
 571 #if CONFIG_IS_ENABLED(BOARD_INIT)
 572         spl_board_init();
 573 #endif
 574
 575         if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF))
 576                 dram_init_banksize();
 577
 578         bootcount_inc();
 579
 580         memset(&spl_image, '\0', sizeof(spl_image));
 581 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
 582         spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
 583 #endif
 584         spl_image.boot_device = BOOT_DEVICE_NONE;
 585         board_boot_order(spl_boot_list);
 586
 587         if (boot_from_devices(&spl_image, spl_boot_list,
 588                               ARRAY_SIZE(spl_boot_list))) {
 589                 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
 590                 hang();
 591         }
 592
 593         spl_perform_fixups(&spl_image);
 594         if (CONFIG_IS_ENABLED(HANDOFF)) {
 595                 ret = write_spl_handoff();
 596                 if (ret)
 597                         printf(SPL_TPL_PROMPT
 598                                "SPL hand-off write failed (err=%d)\n", ret);
 599         }
 600         if (CONFIG_IS_ENABLED(BLOBLIST)) {
 601                 ret = bloblist_finish();
 602                 if (ret)
 603                         printf("Warning: Failed to finish bloblist (ret=%d)\n",
 604                                ret);
 605         }
 606
 607 #ifdef CONFIG_CPU_V7M
 608         spl_image.entry_point |= 0x1;
 609 #endif
 610         switch (spl_image.os) {
 611         case IH_OS_U_BOOT:
 612                 debug("Jumping to U-Boot\n");
 613                 break;
 614 #if CONFIG_IS_ENABLED(ATF)
 615         case IH_OS_ARM_TRUSTED_FIRMWARE:
 616                 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
 617                 spl_invoke_atf(&spl_image);
 618                 break;
 619 #endif
 620 #if CONFIG_IS_ENABLED(OPTEE)
 621         case IH_OS_TEE:
 622                 debug("Jumping to U-Boot via OP-TEE\n");
 623                 spl_optee_entry(NULL, NULL, spl_image.fdt_addr,
 624                                 (void *)spl_image.entry_point);
 625                 break;
 626 #endif
 627 #ifdef CONFIG_SPL_OS_BOOT
 628         case IH_OS_LINUX:
 629                 debug("Jumping to Linux\n");
 630                 spl_fixup_fdt();
 631                 spl_board_prepare_for_linux();
 632                 jump_to_image_linux(&spl_image);
 633 #endif
 634         default:
 635                 debug("Unsupported OS image.. Jumping nevertheless..\n");
 636         }
 637 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
 638         debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
 639               gd->malloc_ptr / 1024);
 640 #endif
 641 #ifdef CONFIG_BOOTSTAGE_STASH
 642         bootstage_mark_name(BOOTSTAGE_ID_END_SPL, "end_spl");
 643         ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
 644                               CONFIG_BOOTSTAGE_STASH_SIZE);
 645         if (ret)
 646                 debug("Failed to stash bootstage: err=%d\n", ret);
 647 #endif
 648
 649         debug("loaded - jumping to U-Boot...\n");
 650         spl_board_prepare_for_boot();
 651         jump_to_image_no_args(&spl_image);
 652 }
 653
 654 #ifdef CONFIG_SPL_SERIAL_SUPPORT
 655 /*
 656  * This requires UART clocks to be enabled.  In order for this to work the
 657  * caller must ensure that the gd pointer is valid.
 658  */
 659 void preloader_console_init(void)
 660 {
 661         gd->baudrate = CONFIG_BAUDRATE;
 662
 663         serial_init();          /* serial communications setup */
 664
 665         gd->have_console = 1;
 666
 667 #if CONFIG_IS_ENABLED(BANNER_PRINT)
 668         puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
 669              U_BOOT_TIME " " U_BOOT_TZ ")\n");
 670 #endif
 671 #ifdef CONFIG_SPL_DISPLAY_PRINT
 672         spl_display_print();
 673 #endif
 674 }
 675 #endif
 676
 677 /**
 678  * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
 679  *
 680  * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
 681  * for the main board_init_r() execution. This is typically because we need
 682  * more stack space for things like the MMC sub-system.
 683  *
 684  * This function calculates the stack position, copies the global_data into
 685  * place, sets the new gd (except for ARM, for which setting GD within a C
 686  * function may not always work) and returns the new stack position. The
 687  * caller is responsible for setting up the sp register and, in the case
 688  * of ARM, setting up gd.
 689  *
 690  * All of this is done using the same layout and alignments as done in
 691  * board_init_f_init_reserve() / board_init_f_alloc_reserve().
 692  *
 693  * @return new stack location, or 0 to use the same stack
 694  */
 695 ulong spl_relocate_stack_gd(void)
 696 {
 697 #ifdef CONFIG_SPL_STACK_R
 698         gd_t *new_gd;
 699         ulong ptr = CONFIG_SPL_STACK_R_ADDR;
 700
 701 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
 702         if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
 703                 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 704                 gd->malloc_base = ptr;
 705                 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 706                 gd->malloc_ptr = 0;
 707         }
 708 #endif
 709         /* Get stack position: use 8-byte alignment for ABI compliance */
 710         ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
 711         new_gd = (gd_t *)ptr;
 712         memcpy(new_gd, (void *)gd, sizeof(gd_t));
 713 #if CONFIG_IS_ENABLED(DM)
 714         dm_fixup_for_gd_move(new_gd);
 715 #endif
 716 #if !defined(CONFIG_ARM)
 717         gd = new_gd;
 718 #endif
 719         return ptr;
 720 #else
 721         return 0;
 722 #endif
 723 }