common/bootm.c

   1 /*
   2  * (C) Copyright 2000-2009
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #ifndef USE_HOSTCC
   9 #include <common.h>
  10 #include <bootstage.h>
  11 #include <bzlib.h>
  12 #include <errno.h>
  13 #include <fdt_support.h>
  14 #include <lmb.h>
  15 #include <malloc.h>
  16 #include <mapmem.h>
  17 #include <asm/io.h>
  18 #include <linux/lzo.h>
  19 #include <lzma/LzmaTypes.h>
  20 #include <lzma/LzmaDec.h>
  21 #include <lzma/LzmaTools.h>
  22 #if defined(CONFIG_CMD_USB)
  23 #include <usb.h>
  24 #endif
  25 #else
  26 #include "mkimage.h"
  27 #endif
  28
  29 #include <command.h>
  30 #include <bootm.h>
  31 #include <image.h>
  32
  33 #ifndef CONFIG_SYS_BOOTM_LEN
  34 /* use 8MByte as default max gunzip size */
  35 #define CONFIG_SYS_BOOTM_LEN    0x800000
  36 #endif
  37
  38 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
  39
  40 #ifndef USE_HOSTCC
  41
  42 DECLARE_GLOBAL_DATA_PTR;
  43
  44 bootm_headers_t images;         /* pointers to os/initrd/fdt images */
  45
  46 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
  47                                    char * const argv[], bootm_headers_t *images,
  48                                    ulong *os_data, ulong *os_len);
  49
  50 #ifdef CONFIG_LMB
  51 static void boot_start_lmb(bootm_headers_t *images)
  52 {
  53         ulong           mem_start;
  54         phys_size_t     mem_size;
  55
  56         lmb_init(&images->lmb);
  57
  58         mem_start = getenv_bootm_low();
  59         mem_size = getenv_bootm_size();
  60
  61         lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
  62
  63         arch_lmb_reserve(&images->lmb);
  64         board_lmb_reserve(&images->lmb);
  65 }
  66 #else
  67 #define lmb_reserve(lmb, base, size)
  68 static inline void boot_start_lmb(bootm_headers_t *images) { }
  69 #endif
  70
  71 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc,
  72                        char * const argv[])
  73 {
  74         memset((void *)&images, 0, sizeof(images));
  75         images.verify = env_get_yesno("verify");
  76
  77         boot_start_lmb(&images);
  78
  79         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
  80         images.state = BOOTM_STATE_START;
  81
  82         return 0;
  83 }
  84
  85 static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc,
  86                          char * const argv[])
  87 {
  88         const void *os_hdr;
  89         bool ep_found = false;
  90         int ret;
  91
  92         /* get kernel image header, start address and length */
  93         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
  94                         &images, &images.os.image_start, &images.os.image_len);
  95         if (images.os.image_len == 0) {
  96                 puts("ERROR: can't get kernel image!\n");
  97                 return 1;
  98         }
  99
 100         /* get image parameters */
 101         switch (genimg_get_format(os_hdr)) {
 102 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
 103         case IMAGE_FORMAT_LEGACY:
 104                 images.os.type = image_get_type(os_hdr);
 105                 images.os.comp = image_get_comp(os_hdr);
 106                 images.os.os = image_get_os(os_hdr);
 107
 108                 images.os.end = image_get_image_end(os_hdr);
 109                 images.os.load = image_get_load(os_hdr);
 110                 images.os.arch = image_get_arch(os_hdr);
 111                 break;
 112 #endif
 113 #if IMAGE_ENABLE_FIT
 114         case IMAGE_FORMAT_FIT:
 115                 if (fit_image_get_type(images.fit_hdr_os,
 116                                        images.fit_noffset_os,
 117                                        &images.os.type)) {
 118                         puts("Can't get image type!\n");
 119                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
 120                         return 1;
 121                 }
 122
 123                 if (fit_image_get_comp(images.fit_hdr_os,
 124                                        images.fit_noffset_os,
 125                                        &images.os.comp)) {
 126                         puts("Can't get image compression!\n");
 127                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
 128                         return 1;
 129                 }
 130
 131                 if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os,
 132                                      &images.os.os)) {
 133                         puts("Can't get image OS!\n");
 134                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
 135                         return 1;
 136                 }
 137
 138                 if (fit_image_get_arch(images.fit_hdr_os,
 139                                        images.fit_noffset_os,
 140                                        &images.os.arch)) {
 141                         puts("Can't get image ARCH!\n");
 142                         return 1;
 143                 }
 144
 145                 images.os.end = fit_get_end(images.fit_hdr_os);
 146
 147                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 148                                        &images.os.load)) {
 149                         puts("Can't get image load address!\n");
 150                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
 151                         return 1;
 152                 }
 153                 break;
 154 #endif
 155 #ifdef CONFIG_ANDROID_BOOT_IMAGE
 156         case IMAGE_FORMAT_ANDROID:
 157                 images.os.type = IH_TYPE_KERNEL;
 158                 images.os.comp = IH_COMP_NONE;
 159                 images.os.os = IH_OS_LINUX;
 160
 161                 images.os.end = android_image_get_end(os_hdr);
 162                 images.os.load = android_image_get_kload(os_hdr);
 163                 images.ep = images.os.load;
 164                 ep_found = true;
 165                 break;
 166 #endif
 167         default:
 168                 puts("ERROR: unknown image format type!\n");
 169                 return 1;
 170         }
 171
 172         /* If we have a valid setup.bin, we will use that for entry (x86) */
 173         if (images.os.arch == IH_ARCH_I386 ||
 174             images.os.arch == IH_ARCH_X86_64) {
 175                 ulong len;
 176
 177                 ret = boot_get_setup(&images, IH_ARCH_I386, &images.ep, &len);
 178                 if (ret < 0 && ret != -ENOENT) {
 179                         puts("Could not find a valid setup.bin for x86\n");
 180                         return 1;
 181                 }
 182                 /* Kernel entry point is the setup.bin */
 183         } else if (images.legacy_hdr_valid) {
 184                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 185 #if IMAGE_ENABLE_FIT
 186         } else if (images.fit_uname_os) {
 187                 int ret;
 188
 189                 ret = fit_image_get_entry(images.fit_hdr_os,
 190                                           images.fit_noffset_os, &images.ep);
 191                 if (ret) {
 192                         puts("Can't get entry point property!\n");
 193                         return 1;
 194                 }
 195 #endif
 196         } else if (!ep_found) {
 197                 puts("Could not find kernel entry point!\n");
 198                 return 1;
 199         }
 200
 201         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 202                 images.os.load = images.os.image_start;
 203                 images.ep += images.os.load;
 204         }
 205
 206         images.os.start = map_to_sysmem(os_hdr);
 207
 208         return 0;
 209 }
 210
 211 /**
 212  * bootm_find_images - wrapper to find and locate various images
 213  * @flag: Ignored Argument
 214  * @argc: command argument count
 215  * @argv: command argument list
 216  *
 217  * boot_find_images() will attempt to load an available ramdisk,
 218  * flattened device tree, as well as specifically marked
 219  * "loadable" images (loadables are FIT only)
 220  *
 221  * Note: bootm_find_images will skip an image if it is not found
 222  *
 223  * @return:
 224  *     0, if all existing images were loaded correctly
 225  *     1, if an image is found but corrupted, or invalid
 226  */
 227 int bootm_find_images(int flag, int argc, char * const argv[])
 228 {
 229         int ret;
 230
 231         /* find ramdisk */
 232         ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
 233                                &images.rd_start, &images.rd_end);
 234         if (ret) {
 235                 puts("Ramdisk image is corrupt or invalid\n");
 236                 return 1;
 237         }
 238
 239 #if IMAGE_ENABLE_OF_LIBFDT
 240         /* find flattened device tree */
 241         ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
 242                            &images.ft_addr, &images.ft_len);
 243         if (ret) {
 244                 puts("Could not find a valid device tree\n");
 245                 return 1;
 246         }
 247         set_working_fdt_addr((ulong)images.ft_addr);
 248 #endif
 249
 250 #if IMAGE_ENABLE_FIT
 251 #if defined(CONFIG_FPGA) && defined(CONFIG_FPGA_XILINX)
 252         /* find bitstreams */
 253         ret = boot_get_fpga(argc, argv, &images, IH_ARCH_DEFAULT,
 254                             NULL, NULL);
 255         if (ret) {
 256                 printf("FPGA image is corrupted or invalid\n");
 257                 return 1;
 258         }
 259 #endif
 260
 261         /* find all of the loadables */
 262         ret = boot_get_loadable(argc, argv, &images, IH_ARCH_DEFAULT,
 263                                NULL, NULL);
 264         if (ret) {
 265                 printf("Loadable(s) is corrupt or invalid\n");
 266                 return 1;
 267         }
 268 #endif
 269
 270         return 0;
 271 }
 272
 273 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
 274                             char * const argv[])
 275 {
 276         if (((images.os.type == IH_TYPE_KERNEL) ||
 277              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 278              (images.os.type == IH_TYPE_MULTI)) &&
 279             (images.os.os == IH_OS_LINUX ||
 280                  images.os.os == IH_OS_VXWORKS))
 281                 return bootm_find_images(flag, argc, argv);
 282
 283         return 0;
 284 }
 285 #endif /* USE_HOSTC */
 286
 287 /**
 288  * print_decomp_msg() - Print a suitable decompression/loading message
 289  *
 290  * @type:       OS type (IH_OS_...)
 291  * @comp_type:  Compression type being used (IH_COMP_...)
 292  * @is_xip:     true if the load address matches the image start
 293  */
 294 static void print_decomp_msg(int comp_type, int type, bool is_xip)
 295 {
 296         const char *name = genimg_get_type_name(type);
 297
 298         if (comp_type == IH_COMP_NONE)
 299                 printf("   %s %s ... ", is_xip ? "XIP" : "Loading", name);
 300         else
 301                 printf("   Uncompressing %s ... ", name);
 302 }
 303
 304 /**
 305  * handle_decomp_error() - display a decompression error
 306  *
 307  * This function tries to produce a useful message. In the case where the
 308  * uncompressed size is the same as the available space, we can assume that
 309  * the image is too large for the buffer.
 310  *
 311  * @comp_type:          Compression type being used (IH_COMP_...)
 312  * @uncomp_size:        Number of bytes uncompressed
 313  * @unc_len:            Amount of space available for decompression
 314  * @ret:                Error code to report
 315  * @return BOOTM_ERR_RESET, indicating that the board must be reset
 316  */
 317 static int handle_decomp_error(int comp_type, size_t uncomp_size,
 318                                size_t unc_len, int ret)
 319 {
 320         const char *name = genimg_get_comp_name(comp_type);
 321
 322         if (uncomp_size >= unc_len)
 323                 printf("Image too large: increase CONFIG_SYS_BOOTM_LEN\n");
 324         else
 325                 printf("%s: uncompress error %d\n", name, ret);
 326
 327         /*
 328          * The decompression routines are now safe, so will not write beyond
 329          * their bounds. Probably it is not necessary to reset, but maintain
 330          * the current behaviour for now.
 331          */
 332         printf("Must RESET board to recover\n");
 333 #ifndef USE_HOSTCC
 334         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 335 #endif
 336
 337         return BOOTM_ERR_RESET;
 338 }
 339
 340 int bootm_decomp_image(int comp, ulong load, ulong image_start, int type,
 341                        void *load_buf, void *image_buf, ulong image_len,
 342                        uint unc_len, ulong *load_end)
 343 {
 344         int ret = 0;
 345
 346         *load_end = load;
 347         print_decomp_msg(comp, type, load == image_start);
 348
 349         /*
 350          * Load the image to the right place, decompressing if needed. After
 351          * this, image_len will be set to the number of uncompressed bytes
 352          * loaded, ret will be non-zero on error.
 353          */
 354         switch (comp) {
 355         case IH_COMP_NONE:
 356                 if (load == image_start)
 357                         break;
 358                 if (image_len <= unc_len)
 359                         memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
 360                 else
 361                         ret = 1;
 362                 break;
 363 #ifdef CONFIG_GZIP
 364         case IH_COMP_GZIP: {
 365                 ret = gunzip(load_buf, unc_len, image_buf, &image_len);
 366                 break;
 367         }
 368 #endif /* CONFIG_GZIP */
 369 #ifdef CONFIG_BZIP2
 370         case IH_COMP_BZIP2: {
 371                 uint size = unc_len;
 372
 373                 /*
 374                  * If we've got less than 4 MB of malloc() space,
 375                  * use slower decompression algorithm which requires
 376                  * at most 2300 KB of memory.
 377                  */
 378                 ret = BZ2_bzBuffToBuffDecompress(load_buf, &size,
 379                         image_buf, image_len,
 380                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
 381                 image_len = size;
 382                 break;
 383         }
 384 #endif /* CONFIG_BZIP2 */
 385 #ifdef CONFIG_LZMA
 386         case IH_COMP_LZMA: {
 387                 SizeT lzma_len = unc_len;
 388
 389                 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
 390                                                image_buf, image_len);
 391                 image_len = lzma_len;
 392                 break;
 393         }
 394 #endif /* CONFIG_LZMA */
 395 #ifdef CONFIG_LZO
 396         case IH_COMP_LZO: {
 397                 size_t size = unc_len;
 398
 399                 ret = lzop_decompress(image_buf, image_len, load_buf, &size);
 400                 image_len = size;
 401                 break;
 402         }
 403 #endif /* CONFIG_LZO */
 404 #ifdef CONFIG_LZ4
 405         case IH_COMP_LZ4: {
 406                 size_t size = unc_len;
 407
 408                 ret = ulz4fn(image_buf, image_len, load_buf, &size);
 409                 image_len = size;
 410                 break;
 411         }
 412 #endif /* CONFIG_LZ4 */
 413         default:
 414                 printf("Unimplemented compression type %d\n", comp);
 415                 return BOOTM_ERR_UNIMPLEMENTED;
 416         }
 417
 418         if (ret)
 419                 return handle_decomp_error(comp, image_len, unc_len, ret);
 420         *load_end = load + image_len;
 421
 422         puts("OK\n");
 423
 424         return 0;
 425 }
 426
 427 #ifndef USE_HOSTCC
 428 static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end,
 429                          int boot_progress)
 430 {
 431         image_info_t os = images->os;
 432         ulong load = os.load;
 433         ulong blob_start = os.start;
 434         ulong blob_end = os.end;
 435         ulong image_start = os.image_start;
 436         ulong image_len = os.image_len;
 437         bool no_overlap;
 438         void *load_buf, *image_buf;
 439         int err;
 440
 441         load_buf = map_sysmem(load, 0);
 442         image_buf = map_sysmem(os.image_start, image_len);
 443         err = bootm_decomp_image(os.comp, load, os.image_start, os.type,
 444                                  load_buf, image_buf, image_len,
 445                                  CONFIG_SYS_BOOTM_LEN, load_end);
 446         if (err) {
 447                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 448                 return err;
 449         }
 450         flush_cache(load, ALIGN(*load_end - load, ARCH_DMA_MINALIGN));
 451
 452         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
 453         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 454
 455         no_overlap = (os.comp == IH_COMP_NONE && load == image_start);
 456
 457         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
 458                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 459                       blob_start, blob_end);
 460                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 461                       *load_end);
 462
 463                 /* Check what type of image this is. */
 464                 if (images->legacy_hdr_valid) {
 465                         if (image_get_type(&images->legacy_hdr_os_copy)
 466                                         == IH_TYPE_MULTI)
 467                                 puts("WARNING: legacy format multi component image overwritten\n");
 468                         return BOOTM_ERR_OVERLAP;
 469                 } else {
 470                         puts("ERROR: new format image overwritten - must RESET the board to recover\n");
 471                         bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 472                         return BOOTM_ERR_RESET;
 473                 }
 474         }
 475
 476         return 0;
 477 }
 478
 479 /**
 480  * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
 481  *
 482  * @return interrupt flag (0 if interrupts were disabled, non-zero if they were
 483  *      enabled)
 484  */
 485 ulong bootm_disable_interrupts(void)
 486 {
 487         ulong iflag;
 488
 489         /*
 490          * We have reached the point of no return: we are going to
 491          * overwrite all exception vector code, so we cannot easily
 492          * recover from any failures any more...
 493          */
 494         iflag = disable_interrupts();
 495 #ifdef CONFIG_NETCONSOLE
 496         /* Stop the ethernet stack if NetConsole could have left it up */
 497         eth_halt();
 498 # ifndef CONFIG_DM_ETH
 499         eth_unregister(eth_get_dev());
 500 # endif
 501 #endif
 502
 503 #if defined(CONFIG_CMD_USB)
 504         /*
 505          * turn off USB to prevent the host controller from writing to the
 506          * SDRAM while Linux is booting. This could happen (at least for OHCI
 507          * controller), because the HCCA (Host Controller Communication Area)
 508          * lies within the SDRAM and the host controller writes continously to
 509          * this area (as busmaster!). The HccaFrameNumber is for example
 510          * updated every 1 ms within the HCCA structure in SDRAM! For more
 511          * details see the OpenHCI specification.
 512          */
 513         usb_stop();
 514 #endif
 515         return iflag;
 516 }
 517
 518 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
 519
 520 #define CONSOLE_ARG     "console="
 521 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
 522
 523 static void fixup_silent_linux(void)
 524 {
 525         char *buf;
 526         const char *env_val;
 527         char *cmdline = env_get("bootargs");
 528         int want_silent;
 529
 530         /*
 531          * Only fix cmdline when requested. The environment variable can be:
 532          *
 533          *      no - we never fixup
 534          *      yes - we always fixup
 535          *      unset - we rely on the console silent flag
 536          */
 537         want_silent = env_get_yesno("silent_linux");
 538         if (want_silent == 0)
 539                 return;
 540         else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
 541                 return;
 542
 543         debug("before silent fix-up: %s\n", cmdline);
 544         if (cmdline && (cmdline[0] != '\0')) {
 545                 char *start = strstr(cmdline, CONSOLE_ARG);
 546
 547                 /* Allocate space for maximum possible new command line */
 548                 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
 549                 if (!buf) {
 550                         debug("%s: out of memory\n", __func__);
 551                         return;
 552                 }
 553
 554                 if (start) {
 555                         char *end = strchr(start, ' ');
 556                         int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
 557
 558                         strncpy(buf, cmdline, num_start_bytes);
 559                         if (end)
 560                                 strcpy(buf + num_start_bytes, end);
 561                         else
 562                                 buf[num_start_bytes] = '\0';
 563                 } else {
 564                         sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
 565                 }
 566                 env_val = buf;
 567         } else {
 568                 buf = NULL;
 569                 env_val = CONSOLE_ARG;
 570         }
 571
 572         env_set("bootargs", env_val);
 573         debug("after silent fix-up: %s\n", env_val);
 574         free(buf);
 575 }
 576 #endif /* CONFIG_SILENT_CONSOLE */
 577
 578 /**
 579  * Execute selected states of the bootm command.
 580  *
 581  * Note the arguments to this state must be the first argument, Any 'bootm'
 582  * or sub-command arguments must have already been taken.
 583  *
 584  * Note that if states contains more than one flag it MUST contain
 585  * BOOTM_STATE_START, since this handles and consumes the command line args.
 586  *
 587  * Also note that aside from boot_os_fn functions and bootm_load_os no other
 588  * functions we store the return value of in 'ret' may use a negative return
 589  * value, without special handling.
 590  *
 591  * @param cmdtp         Pointer to bootm command table entry
 592  * @param flag          Command flags (CMD_FLAG_...)
 593  * @param argc          Number of subcommand arguments (0 = no arguments)
 594  * @param argv          Arguments
 595  * @param states        Mask containing states to run (BOOTM_STATE_...)
 596  * @param images        Image header information
 597  * @param boot_progress 1 to show boot progress, 0 to not do this
 598  * @return 0 if ok, something else on error. Some errors will cause this
 599  *      function to perform a reboot! If states contains BOOTM_STATE_OS_GO
 600  *      then the intent is to boot an OS, so this function will not return
 601  *      unless the image type is standalone.
 602  */
 603 int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
 604                     int states, bootm_headers_t *images, int boot_progress)
 605 {
 606         boot_os_fn *boot_fn;
 607         ulong iflag = 0;
 608         int ret = 0, need_boot_fn;
 609
 610         images->state |= states;
 611
 612         /*
 613          * Work through the states and see how far we get. We stop on
 614          * any error.
 615          */
 616         if (states & BOOTM_STATE_START)
 617                 ret = bootm_start(cmdtp, flag, argc, argv);
 618
 619         if (!ret && (states & BOOTM_STATE_FINDOS))
 620                 ret = bootm_find_os(cmdtp, flag, argc, argv);
 621
 622         if (!ret && (states & BOOTM_STATE_FINDOTHER))
 623                 ret = bootm_find_other(cmdtp, flag, argc, argv);
 624
 625         /* Load the OS */
 626         if (!ret && (states & BOOTM_STATE_LOADOS)) {
 627                 ulong load_end;
 628
 629                 iflag = bootm_disable_interrupts();
 630                 ret = bootm_load_os(images, &load_end, 0);
 631                 if (ret == 0)
 632                         lmb_reserve(&images->lmb, images->os.load,
 633                                     (load_end - images->os.load));
 634                 else if (ret && ret != BOOTM_ERR_OVERLAP)
 635                         goto err;
 636                 else if (ret == BOOTM_ERR_OVERLAP)
 637                         ret = 0;
 638         }
 639
 640         /* Relocate the ramdisk */
 641 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 642         if (!ret && (states & BOOTM_STATE_RAMDISK)) {
 643                 ulong rd_len = images->rd_end - images->rd_start;
 644
 645                 ret = boot_ramdisk_high(&images->lmb, images->rd_start,
 646                         rd_len, &images->initrd_start, &images->initrd_end);
 647                 if (!ret) {
 648                         env_set_hex("initrd_start", images->initrd_start);
 649                         env_set_hex("initrd_end", images->initrd_end);
 650                 }
 651         }
 652 #endif
 653 #if IMAGE_ENABLE_OF_LIBFDT && defined(CONFIG_LMB)
 654         if (!ret && (states & BOOTM_STATE_FDT)) {
 655                 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
 656                 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
 657                                         &images->ft_len);
 658         }
 659 #endif
 660
 661         /* From now on, we need the OS boot function */
 662         if (ret)
 663                 return ret;
 664         boot_fn = bootm_os_get_boot_func(images->os.os);
 665         need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
 666                         BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
 667                         BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
 668         if (boot_fn == NULL && need_boot_fn) {
 669                 if (iflag)
 670                         enable_interrupts();
 671                 printf("ERROR: booting os '%s' (%d) is not supported\n",
 672                        genimg_get_os_name(images->os.os), images->os.os);
 673                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
 674                 return 1;
 675         }
 676
 677
 678         /* Call various other states that are not generally used */
 679         if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
 680                 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images);
 681         if (!ret && (states & BOOTM_STATE_OS_BD_T))
 682                 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images);
 683         if (!ret && (states & BOOTM_STATE_OS_PREP)) {
 684 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
 685                 if (images->os.os == IH_OS_LINUX)
 686                         fixup_silent_linux();
 687 #endif
 688                 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images);
 689         }
 690
 691 #ifdef CONFIG_TRACE
 692         /* Pretend to run the OS, then run a user command */
 693         if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
 694                 char *cmd_list = env_get("fakegocmd");
 695
 696                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO,
 697                                 images, boot_fn);
 698                 if (!ret && cmd_list)
 699                         ret = run_command_list(cmd_list, -1, flag);
 700         }
 701 #endif
 702
 703         /* Check for unsupported subcommand. */
 704         if (ret) {
 705                 puts("subcommand not supported\n");
 706                 return ret;
 707         }
 708
 709         /* Now run the OS! We hope this doesn't return */
 710         if (!ret && (states & BOOTM_STATE_OS_GO))
 711                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO,
 712                                 images, boot_fn);
 713
 714         /* Deal with any fallout */
 715 err:
 716         if (iflag)
 717                 enable_interrupts();
 718
 719         if (ret == BOOTM_ERR_UNIMPLEMENTED)
 720                 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
 721         else if (ret == BOOTM_ERR_RESET)
 722                 do_reset(cmdtp, flag, argc, argv);
 723
 724         return ret;
 725 }
 726
 727 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
 728 /**
 729  * image_get_kernel - verify legacy format kernel image
 730  * @img_addr: in RAM address of the legacy format image to be verified
 731  * @verify: data CRC verification flag
 732  *
 733  * image_get_kernel() verifies legacy image integrity and returns pointer to
 734  * legacy image header if image verification was completed successfully.
 735  *
 736  * returns:
 737  *     pointer to a legacy image header if valid image was found
 738  *     otherwise return NULL
 739  */
 740 static image_header_t *image_get_kernel(ulong img_addr, int verify)
 741 {
 742         image_header_t *hdr = (image_header_t *)img_addr;
 743
 744         if (!image_check_magic(hdr)) {
 745                 puts("Bad Magic Number\n");
 746                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
 747                 return NULL;
 748         }
 749         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
 750
 751         if (!image_check_hcrc(hdr)) {
 752                 puts("Bad Header Checksum\n");
 753                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
 754                 return NULL;
 755         }
 756
 757         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
 758         image_print_contents(hdr);
 759
 760         if (verify) {
 761                 puts("   Verifying Checksum ... ");
 762                 if (!image_check_dcrc(hdr)) {
 763                         printf("Bad Data CRC\n");
 764                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
 765                         return NULL;
 766                 }
 767                 puts("OK\n");
 768         }
 769         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
 770
 771         if (!image_check_target_arch(hdr)) {
 772                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
 773                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
 774                 return NULL;
 775         }
 776         return hdr;
 777 }
 778 #endif
 779
 780 /**
 781  * boot_get_kernel - find kernel image
 782  * @os_data: pointer to a ulong variable, will hold os data start address
 783  * @os_len: pointer to a ulong variable, will hold os data length
 784  *
 785  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 786  * and locates kernel data.
 787  *
 788  * returns:
 789  *     pointer to image header if valid image was found, plus kernel start
 790  *     address and length, otherwise NULL
 791  */
 792 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 793                                    char * const argv[], bootm_headers_t *images,
 794                                    ulong *os_data, ulong *os_len)
 795 {
 796 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
 797         image_header_t  *hdr;
 798 #endif
 799         ulong           img_addr;
 800         const void *buf;
 801         const char      *fit_uname_config = NULL;
 802         const char      *fit_uname_kernel = NULL;
 803 #if IMAGE_ENABLE_FIT
 804         int             os_noffset;
 805 #endif
 806
 807         img_addr = genimg_get_kernel_addr_fit(argc < 1 ? NULL : argv[0],
 808                                               &fit_uname_config,
 809                                               &fit_uname_kernel);
 810
 811         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
 812
 813         /* copy from dataflash if needed */
 814         img_addr = genimg_get_image(img_addr);
 815
 816         /* check image type, for FIT images get FIT kernel node */
 817         *os_data = *os_len = 0;
 818         buf = map_sysmem(img_addr, 0);
 819         switch (genimg_get_format(buf)) {
 820 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
 821         case IMAGE_FORMAT_LEGACY:
 822                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 823                        img_addr);
 824                 hdr = image_get_kernel(img_addr, images->verify);
 825                 if (!hdr)
 826                         return NULL;
 827                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 828
 829                 /* get os_data and os_len */
 830                 switch (image_get_type(hdr)) {
 831                 case IH_TYPE_KERNEL:
 832                 case IH_TYPE_KERNEL_NOLOAD:
 833                         *os_data = image_get_data(hdr);
 834                         *os_len = image_get_data_size(hdr);
 835                         break;
 836                 case IH_TYPE_MULTI:
 837                         image_multi_getimg(hdr, 0, os_data, os_len);
 838                         break;
 839                 case IH_TYPE_STANDALONE:
 840                         *os_data = image_get_data(hdr);
 841                         *os_len = image_get_data_size(hdr);
 842                         break;
 843                 default:
 844                         printf("Wrong Image Type for %s command\n",
 845                                cmdtp->name);
 846                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 847                         return NULL;
 848                 }
 849
 850                 /*
 851                  * copy image header to allow for image overwrites during
 852                  * kernel decompression.
 853                  */
 854                 memmove(&images->legacy_hdr_os_copy, hdr,
 855                         sizeof(image_header_t));
 856
 857                 /* save pointer to image header */
 858                 images->legacy_hdr_os = hdr;
 859
 860                 images->legacy_hdr_valid = 1;
 861                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
 862                 break;
 863 #endif
 864 #if IMAGE_ENABLE_FIT
 865         case IMAGE_FORMAT_FIT:
 866                 os_noffset = fit_image_load(images, img_addr,
 867                                 &fit_uname_kernel, &fit_uname_config,
 868                                 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
 869                                 BOOTSTAGE_ID_FIT_KERNEL_START,
 870                                 FIT_LOAD_IGNORED, os_data, os_len);
 871                 if (os_noffset < 0)
 872                         return NULL;
 873
 874                 images->fit_hdr_os = map_sysmem(img_addr, 0);
 875                 images->fit_uname_os = fit_uname_kernel;
 876                 images->fit_uname_cfg = fit_uname_config;
 877                 images->fit_noffset_os = os_noffset;
 878                 break;
 879 #endif
 880 #ifdef CONFIG_ANDROID_BOOT_IMAGE
 881         case IMAGE_FORMAT_ANDROID:
 882                 printf("## Booting Android Image at 0x%08lx ...\n", img_addr);
 883                 if (android_image_get_kernel(buf, images->verify,
 884                                              os_data, os_len))
 885                         return NULL;
 886                 break;
 887 #endif
 888         default:
 889                 printf("Wrong Image Format for %s command\n", cmdtp->name);
 890                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
 891                 return NULL;
 892         }
 893
 894         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
 895               *os_data, *os_len, *os_len);
 896
 897         return buf;
 898 }
 899 #else /* USE_HOSTCC */
 900
 901 void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
 902 {
 903         memmove(to, from, len);
 904 }
 905
 906 static int bootm_host_load_image(const void *fit, int req_image_type)
 907 {
 908         const char *fit_uname_config = NULL;
 909         ulong data, len;
 910         bootm_headers_t images;
 911         int noffset;
 912         ulong load_end;
 913         uint8_t image_type;
 914         uint8_t imape_comp;
 915         void *load_buf;
 916         int ret;
 917
 918         memset(&images, '\0', sizeof(images));
 919         images.verify = 1;
 920         noffset = fit_image_load(&images, (ulong)fit,
 921                 NULL, &fit_uname_config,
 922                 IH_ARCH_DEFAULT, req_image_type, -1,
 923                 FIT_LOAD_IGNORED, &data, &len);
 924         if (noffset < 0)
 925                 return noffset;
 926         if (fit_image_get_type(fit, noffset, &image_type)) {
 927                 puts("Can't get image type!\n");
 928                 return -EINVAL;
 929         }
 930
 931         if (fit_image_get_comp(fit, noffset, &imape_comp)) {
 932                 puts("Can't get image compression!\n");
 933                 return -EINVAL;
 934         }
 935
 936         /* Allow the image to expand by a factor of 4, should be safe */
 937         load_buf = malloc((1 << 20) + len * 4);
 938         ret = bootm_decomp_image(imape_comp, 0, data, image_type, load_buf,
 939                                  (void *)data, len, CONFIG_SYS_BOOTM_LEN,
 940                                  &load_end);
 941         free(load_buf);
 942
 943         if (ret && ret != BOOTM_ERR_UNIMPLEMENTED)
 944                 return ret;
 945
 946         return 0;
 947 }
 948
 949 int bootm_host_load_images(const void *fit, int cfg_noffset)
 950 {
 951         static uint8_t image_types[] = {
 952                 IH_TYPE_KERNEL,
 953                 IH_TYPE_FLATDT,
 954                 IH_TYPE_RAMDISK,
 955         };
 956         int err = 0;
 957         int i;
 958
 959         for (i = 0; i < ARRAY_SIZE(image_types); i++) {
 960                 int ret;
 961
 962                 ret = bootm_host_load_image(fit, image_types[i]);
 963                 if (!err && ret && ret != -ENOENT)
 964                         err = ret;
 965         }
 966
 967         /* Return the first error we found */
 968         return err;
 969 }
 970
 971 #endif /* ndef USE_HOSTCC */