common/bootm.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2000-2009
   4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5  */
   6
   7 #ifndef USE_HOSTCC
   8 #include <common.h>
   9 #include <bootstage.h>
  10 #include <errno.h>
  11 #include <fdt_support.h>
  12 #include <lmb.h>
  13 #include <malloc.h>
  14 #include <mapmem.h>
  15 #include <asm/io.h>
  16 #if defined(CONFIG_CMD_USB)
  17 #include <usb.h>
  18 #endif
  19 #else
  20 #include "mkimage.h"
  21 #endif
  22
  23 #include <command.h>
  24 #include <bootm.h>
  25 #include <image.h>
  26
  27 #ifndef CONFIG_SYS_BOOTM_LEN
  28 /* use 8MByte as default max gunzip size */
  29 #define CONFIG_SYS_BOOTM_LEN    0x800000
  30 #endif
  31
  32 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
  33
  34 #ifndef USE_HOSTCC
  35
  36 DECLARE_GLOBAL_DATA_PTR;
  37
  38 bootm_headers_t images;         /* pointers to os/initrd/fdt images */
  39
  40 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
  41                                    char * const argv[], bootm_headers_t *images,
  42                                    ulong *os_data, ulong *os_len);
  43
  44 __weak void board_quiesce_devices(void)
  45 {
  46 }
  47
  48 #ifdef CONFIG_LMB
  49 static void boot_start_lmb(bootm_headers_t *images)
  50 {
  51         ulong           mem_start;
  52         phys_size_t     mem_size;
  53
  54         mem_start = env_get_bootm_low();
  55         mem_size = env_get_bootm_size();
  56
  57         lmb_init_and_reserve_range(&images->lmb, (phys_addr_t)mem_start,
  58                                    mem_size, NULL);
  59 }
  60 #else
  61 #define lmb_reserve(lmb, base, size)
  62 static inline void boot_start_lmb(bootm_headers_t *images) { }
  63 #endif
  64
  65 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc,
  66                        char * const argv[])
  67 {
  68         memset((void *)&images, 0, sizeof(images));
  69         images.verify = env_get_yesno("verify");
  70
  71         boot_start_lmb(&images);
  72
  73         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
  74         images.state = BOOTM_STATE_START;
  75
  76         return 0;
  77 }
  78
  79 static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc,
  80                          char * const argv[])
  81 {
  82         const void *os_hdr;
  83         bool ep_found = false;
  84         int ret;
  85
  86         /* get kernel image header, start address and length */
  87         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
  88                         &images, &images.os.image_start, &images.os.image_len);
  89         if (images.os.image_len == 0) {
  90                 puts("ERROR: can't get kernel image!\n");
  91                 return 1;
  92         }
  93
  94         /* get image parameters */
  95         switch (genimg_get_format(os_hdr)) {
  96 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
  97         case IMAGE_FORMAT_LEGACY:
  98                 images.os.type = image_get_type(os_hdr);
  99                 images.os.comp = image_get_comp(os_hdr);
 100                 images.os.os = image_get_os(os_hdr);
 101
 102                 images.os.end = image_get_image_end(os_hdr);
 103                 images.os.load = image_get_load(os_hdr);
 104                 images.os.arch = image_get_arch(os_hdr);
 105                 break;
 106 #endif
 107 #if IMAGE_ENABLE_FIT
 108         case IMAGE_FORMAT_FIT:
 109                 if (fit_image_get_type(images.fit_hdr_os,
 110                                        images.fit_noffset_os,
 111                                        &images.os.type)) {
 112                         puts("Can't get image type!\n");
 113                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
 114                         return 1;
 115                 }
 116
 117                 if (fit_image_get_comp(images.fit_hdr_os,
 118                                        images.fit_noffset_os,
 119                                        &images.os.comp)) {
 120                         puts("Can't get image compression!\n");
 121                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
 122                         return 1;
 123                 }
 124
 125                 if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os,
 126                                      &images.os.os)) {
 127                         puts("Can't get image OS!\n");
 128                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
 129                         return 1;
 130                 }
 131
 132                 if (fit_image_get_arch(images.fit_hdr_os,
 133                                        images.fit_noffset_os,
 134                                        &images.os.arch)) {
 135                         puts("Can't get image ARCH!\n");
 136                         return 1;
 137                 }
 138
 139                 images.os.end = fit_get_end(images.fit_hdr_os);
 140
 141                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 142                                        &images.os.load)) {
 143                         puts("Can't get image load address!\n");
 144                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
 145                         return 1;
 146                 }
 147                 break;
 148 #endif
 149 #ifdef CONFIG_ANDROID_BOOT_IMAGE
 150         case IMAGE_FORMAT_ANDROID:
 151                 images.os.type = IH_TYPE_KERNEL;
 152                 images.os.comp = android_image_get_kcomp(os_hdr);
 153                 images.os.os = IH_OS_LINUX;
 154
 155                 images.os.end = android_image_get_end(os_hdr);
 156                 images.os.load = android_image_get_kload(os_hdr);
 157                 images.ep = images.os.load;
 158                 ep_found = true;
 159                 break;
 160 #endif
 161         default:
 162                 puts("ERROR: unknown image format type!\n");
 163                 return 1;
 164         }
 165
 166         /* If we have a valid setup.bin, we will use that for entry (x86) */
 167         if (images.os.arch == IH_ARCH_I386 ||
 168             images.os.arch == IH_ARCH_X86_64) {
 169                 ulong len;
 170
 171                 ret = boot_get_setup(&images, IH_ARCH_I386, &images.ep, &len);
 172                 if (ret < 0 && ret != -ENOENT) {
 173                         puts("Could not find a valid setup.bin for x86\n");
 174                         return 1;
 175                 }
 176                 /* Kernel entry point is the setup.bin */
 177         } else if (images.legacy_hdr_valid) {
 178                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 179 #if IMAGE_ENABLE_FIT
 180         } else if (images.fit_uname_os) {
 181                 int ret;
 182
 183                 ret = fit_image_get_entry(images.fit_hdr_os,
 184                                           images.fit_noffset_os, &images.ep);
 185                 if (ret) {
 186                         puts("Can't get entry point property!\n");
 187                         return 1;
 188                 }
 189 #endif
 190         } else if (!ep_found) {
 191                 puts("Could not find kernel entry point!\n");
 192                 return 1;
 193         }
 194
 195         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 196                 if (CONFIG_IS_ENABLED(CMD_BOOTI) &&
 197                     images.os.arch == IH_ARCH_ARM64) {
 198                         ulong image_addr;
 199                         ulong image_size;
 200
 201                         ret = booti_setup(images.os.image_start, &image_addr,
 202                                           &image_size, true);
 203                         if (ret != 0)
 204                                 return 1;
 205
 206                         images.os.type = IH_TYPE_KERNEL;
 207                         images.os.load = image_addr;
 208                         images.ep = image_addr;
 209                 } else {
 210                         images.os.load = images.os.image_start;
 211                         images.ep += images.os.image_start;
 212                 }
 213         }
 214
 215         images.os.start = map_to_sysmem(os_hdr);
 216
 217         return 0;
 218 }
 219
 220 /**
 221  * bootm_find_images - wrapper to find and locate various images
 222  * @flag: Ignored Argument
 223  * @argc: command argument count
 224  * @argv: command argument list
 225  *
 226  * boot_find_images() will attempt to load an available ramdisk,
 227  * flattened device tree, as well as specifically marked
 228  * "loadable" images (loadables are FIT only)
 229  *
 230  * Note: bootm_find_images will skip an image if it is not found
 231  *
 232  * @return:
 233  *     0, if all existing images were loaded correctly
 234  *     1, if an image is found but corrupted, or invalid
 235  */
 236 int bootm_find_images(int flag, int argc, char * const argv[])
 237 {
 238         int ret;
 239
 240         /* find ramdisk */
 241         ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
 242                                &images.rd_start, &images.rd_end);
 243         if (ret) {
 244                 puts("Ramdisk image is corrupt or invalid\n");
 245                 return 1;
 246         }
 247
 248 #if IMAGE_ENABLE_OF_LIBFDT
 249         /* find flattened device tree */
 250         ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
 251                            &images.ft_addr, &images.ft_len);
 252         if (ret) {
 253                 puts("Could not find a valid device tree\n");
 254                 return 1;
 255         }
 256         if (CONFIG_IS_ENABLED(CMD_FDT))
 257                 set_working_fdt_addr(map_to_sysmem(images.ft_addr));
 258 #endif
 259
 260 #if IMAGE_ENABLE_FIT
 261 #if defined(CONFIG_FPGA)
 262         /* find bitstreams */
 263         ret = boot_get_fpga(argc, argv, &images, IH_ARCH_DEFAULT,
 264                             NULL, NULL);
 265         if (ret) {
 266                 printf("FPGA image is corrupted or invalid\n");
 267                 return 1;
 268         }
 269 #endif
 270
 271         /* find all of the loadables */
 272         ret = boot_get_loadable(argc, argv, &images, IH_ARCH_DEFAULT,
 273                                NULL, NULL);
 274         if (ret) {
 275                 printf("Loadable(s) is corrupt or invalid\n");
 276                 return 1;
 277         }
 278 #endif
 279
 280         return 0;
 281 }
 282
 283 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
 284                             char * const argv[])
 285 {
 286         if (((images.os.type == IH_TYPE_KERNEL) ||
 287              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 288              (images.os.type == IH_TYPE_MULTI)) &&
 289             (images.os.os == IH_OS_LINUX ||
 290                  images.os.os == IH_OS_VXWORKS))
 291                 return bootm_find_images(flag, argc, argv);
 292
 293         return 0;
 294 }
 295 #endif /* USE_HOSTC */
 296
 297 #if !defined(USE_HOSTCC) || defined(CONFIG_FIT_SIGNATURE)
 298 /**
 299  * handle_decomp_error() - display a decompression error
 300  *
 301  * This function tries to produce a useful message. In the case where the
 302  * uncompressed size is the same as the available space, we can assume that
 303  * the image is too large for the buffer.
 304  *
 305  * @comp_type:          Compression type being used (IH_COMP_...)
 306  * @uncomp_size:        Number of bytes uncompressed
 307  * @ret:                errno error code received from compression library
 308  * @return Appropriate BOOTM_ERR_ error code
 309  */
 310 static int handle_decomp_error(int comp_type, size_t uncomp_size, int ret)
 311 {
 312         const char *name = genimg_get_comp_name(comp_type);
 313
 314         /* ENOSYS means unimplemented compression type, don't reset. */
 315         if (ret == -ENOSYS)
 316                 return BOOTM_ERR_UNIMPLEMENTED;
 317
 318         if (uncomp_size >= CONFIG_SYS_BOOTM_LEN)
 319                 printf("Image too large: increase CONFIG_SYS_BOOTM_LEN\n");
 320         else
 321                 printf("%s: uncompress error %d\n", name, ret);
 322
 323         /*
 324          * The decompression routines are now safe, so will not write beyond
 325          * their bounds. Probably it is not necessary to reset, but maintain
 326          * the current behaviour for now.
 327          */
 328         printf("Must RESET board to recover\n");
 329 #ifndef USE_HOSTCC
 330         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 331 #endif
 332
 333         return BOOTM_ERR_RESET;
 334 }
 335 #endif
 336
 337 #ifndef USE_HOSTCC
 338 static int bootm_load_os(bootm_headers_t *images, int boot_progress)
 339 {
 340         image_info_t os = images->os;
 341         ulong load = os.load;
 342         ulong load_end;
 343         ulong blob_start = os.start;
 344         ulong blob_end = os.end;
 345         ulong image_start = os.image_start;
 346         ulong image_len = os.image_len;
 347         ulong flush_start = ALIGN_DOWN(load, ARCH_DMA_MINALIGN);
 348         bool no_overlap;
 349         void *load_buf, *image_buf;
 350         int err;
 351
 352         load_buf = map_sysmem(load, 0);
 353         image_buf = map_sysmem(os.image_start, image_len);
 354         err = image_decomp(os.comp, load, os.image_start, os.type,
 355                            load_buf, image_buf, image_len,
 356                            CONFIG_SYS_BOOTM_LEN, &load_end);
 357         if (err) {
 358                 err = handle_decomp_error(os.comp, load_end - load, err);
 359                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 360                 return err;
 361         }
 362
 363         flush_cache(flush_start, ALIGN(load_end, ARCH_DMA_MINALIGN) - flush_start);
 364
 365         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, load_end);
 366         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 367
 368         no_overlap = (os.comp == IH_COMP_NONE && load == image_start);
 369
 370         if (!no_overlap && load < blob_end && load_end > blob_start) {
 371                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 372                       blob_start, blob_end);
 373                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 374                       load_end);
 375
 376                 /* Check what type of image this is. */
 377                 if (images->legacy_hdr_valid) {
 378                         if (image_get_type(&images->legacy_hdr_os_copy)
 379                                         == IH_TYPE_MULTI)
 380                                 puts("WARNING: legacy format multi component image overwritten\n");
 381                         return BOOTM_ERR_OVERLAP;
 382                 } else {
 383                         puts("ERROR: new format image overwritten - must RESET the board to recover\n");
 384                         bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 385                         return BOOTM_ERR_RESET;
 386                 }
 387         }
 388
 389         lmb_reserve(&images->lmb, images->os.load, (load_end -
 390                                                     images->os.load));
 391         return 0;
 392 }
 393
 394 /**
 395  * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
 396  *
 397  * @return interrupt flag (0 if interrupts were disabled, non-zero if they were
 398  *      enabled)
 399  */
 400 ulong bootm_disable_interrupts(void)
 401 {
 402         ulong iflag;
 403
 404         /*
 405          * We have reached the point of no return: we are going to
 406          * overwrite all exception vector code, so we cannot easily
 407          * recover from any failures any more...
 408          */
 409         iflag = disable_interrupts();
 410 #ifdef CONFIG_NETCONSOLE
 411         /* Stop the ethernet stack if NetConsole could have left it up */
 412         eth_halt();
 413 # ifndef CONFIG_DM_ETH
 414         eth_unregister(eth_get_dev());
 415 # endif
 416 #endif
 417
 418 #if defined(CONFIG_CMD_USB)
 419         /*
 420          * turn off USB to prevent the host controller from writing to the
 421          * SDRAM while Linux is booting. This could happen (at least for OHCI
 422          * controller), because the HCCA (Host Controller Communication Area)
 423          * lies within the SDRAM and the host controller writes continously to
 424          * this area (as busmaster!). The HccaFrameNumber is for example
 425          * updated every 1 ms within the HCCA structure in SDRAM! For more
 426          * details see the OpenHCI specification.
 427          */
 428         usb_stop();
 429 #endif
 430         return iflag;
 431 }
 432
 433 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
 434
 435 #define CONSOLE_ARG     "console="
 436 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
 437
 438 static void fixup_silent_linux(void)
 439 {
 440         char *buf;
 441         const char *env_val;
 442         char *cmdline = env_get("bootargs");
 443         int want_silent;
 444
 445         /*
 446          * Only fix cmdline when requested. The environment variable can be:
 447          *
 448          *      no - we never fixup
 449          *      yes - we always fixup
 450          *      unset - we rely on the console silent flag
 451          */
 452         want_silent = env_get_yesno("silent_linux");
 453         if (want_silent == 0)
 454                 return;
 455         else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
 456                 return;
 457
 458         debug("before silent fix-up: %s\n", cmdline);
 459         if (cmdline && (cmdline[0] != '\0')) {
 460                 char *start = strstr(cmdline, CONSOLE_ARG);
 461
 462                 /* Allocate space for maximum possible new command line */
 463                 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
 464                 if (!buf) {
 465                         debug("%s: out of memory\n", __func__);
 466                         return;
 467                 }
 468
 469                 if (start) {
 470                         char *end = strchr(start, ' ');
 471                         int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
 472
 473                         strncpy(buf, cmdline, num_start_bytes);
 474                         if (end)
 475                                 strcpy(buf + num_start_bytes, end);
 476                         else
 477                                 buf[num_start_bytes] = '\0';
 478                 } else {
 479                         sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
 480                 }
 481                 env_val = buf;
 482         } else {
 483                 buf = NULL;
 484                 env_val = CONSOLE_ARG;
 485         }
 486
 487         env_set("bootargs", env_val);
 488         debug("after silent fix-up: %s\n", env_val);
 489         free(buf);
 490 }
 491 #endif /* CONFIG_SILENT_CONSOLE */
 492
 493 /**
 494  * Execute selected states of the bootm command.
 495  *
 496  * Note the arguments to this state must be the first argument, Any 'bootm'
 497  * or sub-command arguments must have already been taken.
 498  *
 499  * Note that if states contains more than one flag it MUST contain
 500  * BOOTM_STATE_START, since this handles and consumes the command line args.
 501  *
 502  * Also note that aside from boot_os_fn functions and bootm_load_os no other
 503  * functions we store the return value of in 'ret' may use a negative return
 504  * value, without special handling.
 505  *
 506  * @param cmdtp         Pointer to bootm command table entry
 507  * @param flag          Command flags (CMD_FLAG_...)
 508  * @param argc          Number of subcommand arguments (0 = no arguments)
 509  * @param argv          Arguments
 510  * @param states        Mask containing states to run (BOOTM_STATE_...)
 511  * @param images        Image header information
 512  * @param boot_progress 1 to show boot progress, 0 to not do this
 513  * @return 0 if ok, something else on error. Some errors will cause this
 514  *      function to perform a reboot! If states contains BOOTM_STATE_OS_GO
 515  *      then the intent is to boot an OS, so this function will not return
 516  *      unless the image type is standalone.
 517  */
 518 int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
 519                     int states, bootm_headers_t *images, int boot_progress)
 520 {
 521         boot_os_fn *boot_fn;
 522         ulong iflag = 0;
 523         int ret = 0, need_boot_fn;
 524
 525         images->state |= states;
 526
 527         /*
 528          * Work through the states and see how far we get. We stop on
 529          * any error.
 530          */
 531         if (states & BOOTM_STATE_START)
 532                 ret = bootm_start(cmdtp, flag, argc, argv);
 533
 534         if (!ret && (states & BOOTM_STATE_FINDOS))
 535                 ret = bootm_find_os(cmdtp, flag, argc, argv);
 536
 537         if (!ret && (states & BOOTM_STATE_FINDOTHER))
 538                 ret = bootm_find_other(cmdtp, flag, argc, argv);
 539
 540         /* Load the OS */
 541         if (!ret && (states & BOOTM_STATE_LOADOS)) {
 542                 iflag = bootm_disable_interrupts();
 543                 ret = bootm_load_os(images, 0);
 544                 if (ret && ret != BOOTM_ERR_OVERLAP)
 545                         goto err;
 546                 else if (ret == BOOTM_ERR_OVERLAP)
 547                         ret = 0;
 548         }
 549
 550         /* Relocate the ramdisk */
 551 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 552         if (!ret && (states & BOOTM_STATE_RAMDISK)) {
 553                 ulong rd_len = images->rd_end - images->rd_start;
 554
 555                 ret = boot_ramdisk_high(&images->lmb, images->rd_start,
 556                         rd_len, &images->initrd_start, &images->initrd_end);
 557                 if (!ret) {
 558                         env_set_hex("initrd_start", images->initrd_start);
 559                         env_set_hex("initrd_end", images->initrd_end);
 560                 }
 561         }
 562 #endif
 563 #if IMAGE_ENABLE_OF_LIBFDT && defined(CONFIG_LMB)
 564         if (!ret && (states & BOOTM_STATE_FDT)) {
 565                 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
 566                 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
 567                                         &images->ft_len);
 568         }
 569 #endif
 570
 571         /* From now on, we need the OS boot function */
 572         if (ret)
 573                 return ret;
 574         boot_fn = bootm_os_get_boot_func(images->os.os);
 575         need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
 576                         BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
 577                         BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
 578         if (boot_fn == NULL && need_boot_fn) {
 579                 if (iflag)
 580                         enable_interrupts();
 581                 printf("ERROR: booting os '%s' (%d) is not supported\n",
 582                        genimg_get_os_name(images->os.os), images->os.os);
 583                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
 584                 return 1;
 585         }
 586
 587
 588         /* Call various other states that are not generally used */
 589         if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
 590                 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images);
 591         if (!ret && (states & BOOTM_STATE_OS_BD_T))
 592                 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images);
 593         if (!ret && (states & BOOTM_STATE_OS_PREP)) {
 594 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
 595                 if (images->os.os == IH_OS_LINUX)
 596                         fixup_silent_linux();
 597 #endif
 598                 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images);
 599         }
 600
 601 #ifdef CONFIG_TRACE
 602         /* Pretend to run the OS, then run a user command */
 603         if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
 604                 char *cmd_list = env_get("fakegocmd");
 605
 606                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO,
 607                                 images, boot_fn);
 608                 if (!ret && cmd_list)
 609                         ret = run_command_list(cmd_list, -1, flag);
 610         }
 611 #endif
 612
 613         /* Check for unsupported subcommand. */
 614         if (ret) {
 615                 puts("subcommand not supported\n");
 616                 return ret;
 617         }
 618
 619         /* Now run the OS! We hope this doesn't return */
 620         if (!ret && (states & BOOTM_STATE_OS_GO))
 621                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO,
 622                                 images, boot_fn);
 623
 624         /* Deal with any fallout */
 625 err:
 626         if (iflag)
 627                 enable_interrupts();
 628
 629         if (ret == BOOTM_ERR_UNIMPLEMENTED)
 630                 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
 631         else if (ret == BOOTM_ERR_RESET)
 632                 do_reset(cmdtp, flag, argc, argv);
 633
 634         return ret;
 635 }
 636
 637 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
 638 /**
 639  * image_get_kernel - verify legacy format kernel image
 640  * @img_addr: in RAM address of the legacy format image to be verified
 641  * @verify: data CRC verification flag
 642  *
 643  * image_get_kernel() verifies legacy image integrity and returns pointer to
 644  * legacy image header if image verification was completed successfully.
 645  *
 646  * returns:
 647  *     pointer to a legacy image header if valid image was found
 648  *     otherwise return NULL
 649  */
 650 static image_header_t *image_get_kernel(ulong img_addr, int verify)
 651 {
 652         image_header_t *hdr = (image_header_t *)img_addr;
 653
 654         if (!image_check_magic(hdr)) {
 655                 puts("Bad Magic Number\n");
 656                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
 657                 return NULL;
 658         }
 659         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
 660
 661         if (!image_check_hcrc(hdr)) {
 662                 puts("Bad Header Checksum\n");
 663                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
 664                 return NULL;
 665         }
 666
 667         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
 668         image_print_contents(hdr);
 669
 670         if (verify) {
 671                 puts("   Verifying Checksum ... ");
 672                 if (!image_check_dcrc(hdr)) {
 673                         printf("Bad Data CRC\n");
 674                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
 675                         return NULL;
 676                 }
 677                 puts("OK\n");
 678         }
 679         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
 680
 681         if (!image_check_target_arch(hdr)) {
 682                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
 683                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
 684                 return NULL;
 685         }
 686         return hdr;
 687 }
 688 #endif
 689
 690 /**
 691  * boot_get_kernel - find kernel image
 692  * @os_data: pointer to a ulong variable, will hold os data start address
 693  * @os_len: pointer to a ulong variable, will hold os data length
 694  *
 695  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 696  * and locates kernel data.
 697  *
 698  * returns:
 699  *     pointer to image header if valid image was found, plus kernel start
 700  *     address and length, otherwise NULL
 701  */
 702 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 703                                    char * const argv[], bootm_headers_t *images,
 704                                    ulong *os_data, ulong *os_len)
 705 {
 706 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
 707         image_header_t  *hdr;
 708 #endif
 709         ulong           img_addr;
 710         const void *buf;
 711         const char      *fit_uname_config = NULL;
 712         const char      *fit_uname_kernel = NULL;
 713 #if IMAGE_ENABLE_FIT
 714         int             os_noffset;
 715 #endif
 716
 717         img_addr = genimg_get_kernel_addr_fit(argc < 1 ? NULL : argv[0],
 718                                               &fit_uname_config,
 719                                               &fit_uname_kernel);
 720
 721         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
 722
 723         /* check image type, for FIT images get FIT kernel node */
 724         *os_data = *os_len = 0;
 725         buf = map_sysmem(img_addr, 0);
 726         switch (genimg_get_format(buf)) {
 727 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
 728         case IMAGE_FORMAT_LEGACY:
 729                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 730                        img_addr);
 731                 hdr = image_get_kernel(img_addr, images->verify);
 732                 if (!hdr)
 733                         return NULL;
 734                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 735
 736                 /* get os_data and os_len */
 737                 switch (image_get_type(hdr)) {
 738                 case IH_TYPE_KERNEL:
 739                 case IH_TYPE_KERNEL_NOLOAD:
 740                         *os_data = image_get_data(hdr);
 741                         *os_len = image_get_data_size(hdr);
 742                         break;
 743                 case IH_TYPE_MULTI:
 744                         image_multi_getimg(hdr, 0, os_data, os_len);
 745                         break;
 746                 case IH_TYPE_STANDALONE:
 747                         *os_data = image_get_data(hdr);
 748                         *os_len = image_get_data_size(hdr);
 749                         break;
 750                 default:
 751                         printf("Wrong Image Type for %s command\n",
 752                                cmdtp->name);
 753                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 754                         return NULL;
 755                 }
 756
 757                 /*
 758                  * copy image header to allow for image overwrites during
 759                  * kernel decompression.
 760                  */
 761                 memmove(&images->legacy_hdr_os_copy, hdr,
 762                         sizeof(image_header_t));
 763
 764                 /* save pointer to image header */
 765                 images->legacy_hdr_os = hdr;
 766
 767                 images->legacy_hdr_valid = 1;
 768                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
 769                 break;
 770 #endif
 771 #if IMAGE_ENABLE_FIT
 772         case IMAGE_FORMAT_FIT:
 773                 os_noffset = fit_image_load(images, img_addr,
 774                                 &fit_uname_kernel, &fit_uname_config,
 775                                 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
 776                                 BOOTSTAGE_ID_FIT_KERNEL_START,
 777                                 FIT_LOAD_IGNORED, os_data, os_len);
 778                 if (os_noffset < 0)
 779                         return NULL;
 780
 781                 images->fit_hdr_os = map_sysmem(img_addr, 0);
 782                 images->fit_uname_os = fit_uname_kernel;
 783                 images->fit_uname_cfg = fit_uname_config;
 784                 images->fit_noffset_os = os_noffset;
 785                 break;
 786 #endif
 787 #ifdef CONFIG_ANDROID_BOOT_IMAGE
 788         case IMAGE_FORMAT_ANDROID:
 789                 printf("## Booting Android Image at 0x%08lx ...\n", img_addr);
 790                 if (android_image_get_kernel(buf, images->verify,
 791                                              os_data, os_len))
 792                         return NULL;
 793                 break;
 794 #endif
 795         default:
 796                 printf("Wrong Image Format for %s command\n", cmdtp->name);
 797                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
 798                 return NULL;
 799         }
 800
 801         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
 802               *os_data, *os_len, *os_len);
 803
 804         return buf;
 805 }
 806
 807 /**
 808  * switch_to_non_secure_mode() - switch to non-secure mode
 809  *
 810  * This routine is overridden by architectures requiring this feature.
 811  */
 812 void __weak switch_to_non_secure_mode(void)
 813 {
 814 }
 815
 816 #else /* USE_HOSTCC */
 817
 818 #if defined(CONFIG_FIT_SIGNATURE)
 819 static int bootm_host_load_image(const void *fit, int req_image_type)
 820 {
 821         const char *fit_uname_config = NULL;
 822         ulong data, len;
 823         bootm_headers_t images;
 824         int noffset;
 825         ulong load_end;
 826         uint8_t image_type;
 827         uint8_t imape_comp;
 828         void *load_buf;
 829         int ret;
 830
 831         memset(&images, '\0', sizeof(images));
 832         images.verify = 1;
 833         noffset = fit_image_load(&images, (ulong)fit,
 834                 NULL, &fit_uname_config,
 835                 IH_ARCH_DEFAULT, req_image_type, -1,
 836                 FIT_LOAD_IGNORED, &data, &len);
 837         if (noffset < 0)
 838                 return noffset;
 839         if (fit_image_get_type(fit, noffset, &image_type)) {
 840                 puts("Can't get image type!\n");
 841                 return -EINVAL;
 842         }
 843
 844         if (fit_image_get_comp(fit, noffset, &imape_comp)) {
 845                 puts("Can't get image compression!\n");
 846                 return -EINVAL;
 847         }
 848
 849         /* Allow the image to expand by a factor of 4, should be safe */
 850         load_buf = malloc((1 << 20) + len * 4);
 851         ret = image_decomp(imape_comp, 0, data, image_type, load_buf,
 852                            (void *)data, len, CONFIG_SYS_BOOTM_LEN,
 853                            &load_end);
 854         free(load_buf);
 855
 856         if (ret) {
 857                 ret = handle_decomp_error(imape_comp, load_end - 0, ret);
 858                 if (ret != BOOTM_ERR_UNIMPLEMENTED)
 859                         return ret;
 860         }
 861
 862         return 0;
 863 }
 864
 865 int bootm_host_load_images(const void *fit, int cfg_noffset)
 866 {
 867         static uint8_t image_types[] = {
 868                 IH_TYPE_KERNEL,
 869                 IH_TYPE_FLATDT,
 870                 IH_TYPE_RAMDISK,
 871         };
 872         int err = 0;
 873         int i;
 874
 875         for (i = 0; i < ARRAY_SIZE(image_types); i++) {
 876                 int ret;
 877
 878                 ret = bootm_host_load_image(fit, image_types[i]);
 879                 if (!err && ret && ret != -ENOENT)
 880                         err = ret;
 881         }
 882
 883         /* Return the first error we found */
 884         return err;
 885 }
 886 #endif
 887
 888 #endif /* ndef USE_HOSTCC */