tools/rkcommon.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2015 Google,  Inc
   4  * Written by Simon Glass <[email protected]>
   5  *
   6  * (C) 2017 Theobroma Systems Design und Consulting GmbH
   7  *
   8  * Helper functions for Rockchip images
   9  */
  10
  11 #include "imagetool.h"
  12 #include <image.h>
  13 #include <u-boot/sha256.h>
  14 #include <rc4.h>
  15 #include "mkimage.h"
  16 #include "rkcommon.h"
  17
  18 enum {
  19         RK_MAGIC                = 0x0ff0aa55,
  20         RK_MAGIC_V2             = 0x534E4B52,
  21 };
  22
  23 enum {
  24         RK_HEADER_V1    = 1,
  25         RK_HEADER_V2    = 2,
  26 };
  27
  28 enum hash_type {
  29         HASH_NONE       = 0,
  30         HASH_SHA256     = 1,
  31         HASH_SHA512     = 2,
  32 };
  33
  34 /**
  35  * struct image_entry
  36  *
  37  * @size_and_off:       [31:16]image size;[15:0]image offset
  38  * @address:    default as 0xFFFFFFFF
  39  * @flag:       no use
  40  * @counter:    no use
  41  * @hash:       hash of image
  42  *
  43  */
  44 struct image_entry {
  45         uint32_t size_and_off;
  46         uint32_t address;
  47         uint32_t flag;
  48         uint32_t counter;
  49         uint8_t reserved[8];
  50         uint8_t hash[64];
  51 };
  52
  53 /**
  54  * struct header0_info_v2 - v2 header block for rockchip BootRom
  55  *
  56  * This is stored at SD card block 64 (where each block is 512 bytes)
  57  *
  58  * @magic:      Magic (must be RK_MAGIC_V2)
  59  * @size_and_nimage:    [31:16]number of images;[15:0]
  60  *                      offset to hash field of header(unit as 4Byte)
  61  * @boot_flag:  [3:0]hash type(0:none,1:sha256,2:sha512)
  62  * @signature:  hash or signature for header info
  63  *
  64  */
  65 struct header0_info_v2 {
  66         uint32_t magic;
  67         uint8_t reserved[4];
  68         uint32_t size_and_nimage;
  69         uint32_t boot_flag;
  70         uint8_t reserved1[104];
  71         struct image_entry images[4];
  72         uint8_t reserved2[1064];
  73         uint8_t hash[512];
  74 };
  75
  76 /**
  77  * struct header0_info - header block for boot ROM
  78  *
  79  * This is stored at SD card block 64 (where each block is 512 bytes, or at
  80  * the start of SPI flash. It is encoded with RC4.
  81  *
  82  * @magic:              Magic (must be RK_MAGIC)
  83  * @disable_rc4:        0 to use rc4 for boot image,  1 to use plain binary
  84  * @init_offset:        Offset in blocks of the SPL code from this header
  85  *                      block. E.g. 4 means 2KB after the start of this header.
  86  * Other fields are not used by U-Boot
  87  */
  88 struct header0_info {
  89         uint32_t magic;
  90         uint8_t reserved[4];
  91         uint32_t disable_rc4;
  92         uint16_t init_offset;
  93         uint8_t reserved1[492];
  94         uint16_t init_size;
  95         uint16_t init_boot_size;
  96         uint8_t reserved2[2];
  97 };
  98
  99 /**
 100  * struct header1_info
 101  */
 102 struct header1_info {
 103         uint32_t magic;
 104 };
 105
 106 /**
 107  * struct spl_info - spl info for each chip
 108  *
 109  * @imagename:          Image name(passed by "mkimage -n")
 110  * @spl_hdr:            Boot ROM requires a 4-bytes spl header
 111  * @spl_size:           Spl size(include extra 4-bytes spl header)
 112  * @spl_rc4:            RC4 encode the SPL binary (same key as header)
 113  * @header_ver:         header block version
 114  */
 115 struct spl_info {
 116         const char *imagename;
 117         const char *spl_hdr;
 118         const uint32_t spl_size;
 119         const bool spl_rc4;
 120         const uint32_t header_ver;
 121 };
 122
 123 static struct spl_info spl_infos[] = {
 124         { "px30", "RK33", 0x2800, false, RK_HEADER_V1 },
 125         { "rk3036", "RK30", 0x1000, false, RK_HEADER_V1 },
 126         { "rk3066", "RK30", 0x8000 - 0x800, true, RK_HEADER_V1 },
 127         { "rk3128", "RK31", 0x1800, false, RK_HEADER_V1 },
 128         { "rk3188", "RK31", 0x8000 - 0x800, true, RK_HEADER_V1 },
 129         { "rk322x", "RK32", 0x8000 - 0x1000, false, RK_HEADER_V1 },
 130         { "rk3288", "RK32", 0x8000, false, RK_HEADER_V1 },
 131         { "rk3308", "RK33", 0x40000 - 0x1000, false, RK_HEADER_V1 },
 132         { "rk3328", "RK32", 0x8000 - 0x1000, false, RK_HEADER_V1 },
 133         { "rk3368", "RK33", 0x8000 - 0x1000, false, RK_HEADER_V1 },
 134         { "rk3399", "RK33", 0x30000 - 0x2000, false, RK_HEADER_V1 },
 135         { "rv1108", "RK11", 0x1800, false, RK_HEADER_V1 },
 136         { "rv1126", "110B", 0x10000 - 0x1000, false, RK_HEADER_V1 },
 137         { "rk3568", "RK35", 0x14000 - 0x1000, false, RK_HEADER_V2 },
 138 };
 139
 140 /**
 141  * struct spl_params - spl params parsed in check_params()
 142  *
 143  * @init_file:          Init data file path
 144  * @init_size:          Aligned size of init data in bytes
 145  * @boot_file:          Boot data file path
 146  * @boot_size:          Aligned size of boot data in bytes
 147  */
 148
 149 struct spl_params {
 150         char *init_file;
 151         uint32_t init_size;
 152         char *boot_file;
 153         uint32_t boot_size;
 154 };
 155
 156 static struct spl_params spl_params = { 0 };
 157
 158 static const unsigned char rc4_key[16] = {
 159         124, 78, 3, 4, 85, 5, 9, 7,
 160         45, 44, 123, 56, 23, 13, 23, 17
 161 };
 162
 163 static struct spl_info *rkcommon_get_spl_info(char *imagename)
 164 {
 165         int i;
 166
 167         if (!imagename)
 168                 return NULL;
 169
 170         for (i = 0; i < ARRAY_SIZE(spl_infos); i++)
 171                 if (!strncmp(imagename, spl_infos[i].imagename, 6))
 172                         return spl_infos + i;
 173
 174         return NULL;
 175 }
 176
 177 static int rkcommon_get_aligned_size(struct image_tool_params *params,
 178                                      const char *fname)
 179 {
 180         int size;
 181
 182         size = imagetool_get_filesize(params, fname);
 183         if (size < 0)
 184                 return -1;
 185
 186         /*
 187          * Pad to a 2KB alignment, as required for init/boot size by the ROM
 188          * (see https://lists.denx.de/pipermail/u-boot/2017-May/293268.html)
 189          */
 190         return ROUND(size, RK_SIZE_ALIGN);
 191 }
 192
 193 int rkcommon_check_params(struct image_tool_params *params)
 194 {
 195         int i, size;
 196
 197         /*
 198          * If this is a operation (list or extract), the don't require
 199          * imagename to be set.
 200          */
 201         if (params->lflag || params->iflag)
 202                 return EXIT_SUCCESS;
 203
 204         if (!rkcommon_get_spl_info(params->imagename))
 205                 goto err_spl_info;
 206
 207         spl_params.init_file = params->datafile;
 208
 209         spl_params.boot_file = strchr(spl_params.init_file, ':');
 210         if (spl_params.boot_file) {
 211                 *spl_params.boot_file = '\0';
 212                 spl_params.boot_file += 1;
 213         }
 214
 215         size = rkcommon_get_aligned_size(params, spl_params.init_file);
 216         if (size < 0)
 217                 return EXIT_FAILURE;
 218         spl_params.init_size = size;
 219
 220         /* Boot file is optional, and only for back-to-bootrom functionality. */
 221         if (spl_params.boot_file) {
 222                 size = rkcommon_get_aligned_size(params, spl_params.boot_file);
 223                 if (size < 0)
 224                         return EXIT_FAILURE;
 225                 spl_params.boot_size = size;
 226         }
 227
 228         if (spl_params.init_size > rkcommon_get_spl_size(params)) {
 229                 fprintf(stderr,
 230                         "Error: SPL image is too large (size %#x than %#x)\n",
 231                         spl_params.init_size, rkcommon_get_spl_size(params));
 232                 return EXIT_FAILURE;
 233         }
 234
 235         return EXIT_SUCCESS;
 236
 237 err_spl_info:
 238         fprintf(stderr, "ERROR: imagename (%s) is not supported!\n",
 239                 params->imagename ? params->imagename : "NULL");
 240
 241         fprintf(stderr, "Available imagename:");
 242         for (i = 0; i < ARRAY_SIZE(spl_infos); i++)
 243                 fprintf(stderr, "\t%s", spl_infos[i].imagename);
 244         fprintf(stderr, "\n");
 245
 246         return EXIT_FAILURE;
 247 }
 248
 249 const char *rkcommon_get_spl_hdr(struct image_tool_params *params)
 250 {
 251         struct spl_info *info = rkcommon_get_spl_info(params->imagename);
 252
 253         /*
 254          * info would not be NULL, because of we checked params before.
 255          */
 256         return info->spl_hdr;
 257 }
 258
 259 int rkcommon_get_spl_size(struct image_tool_params *params)
 260 {
 261         struct spl_info *info = rkcommon_get_spl_info(params->imagename);
 262
 263         /*
 264          * info would not be NULL, because of we checked params before.
 265          */
 266         return info->spl_size;
 267 }
 268
 269 bool rkcommon_need_rc4_spl(struct image_tool_params *params)
 270 {
 271         struct spl_info *info = rkcommon_get_spl_info(params->imagename);
 272
 273         /*
 274          * info would not be NULL, because of we checked params before.
 275          */
 276         return info->spl_rc4;
 277 }
 278
 279 bool rkcommon_is_header_v2(struct image_tool_params *params)
 280 {
 281         struct spl_info *info = rkcommon_get_spl_info(params->imagename);
 282
 283         return (info->header_ver == RK_HEADER_V2);
 284 }
 285
 286 static void do_sha256_hash(uint8_t *buf, uint32_t size, uint8_t *out)
 287 {
 288         sha256_context ctx;
 289
 290         sha256_starts(&ctx);
 291         sha256_update(&ctx, buf, size);
 292         sha256_finish(&ctx, out);
 293 }
 294
 295 static void rkcommon_set_header0(void *buf, struct image_tool_params *params)
 296 {
 297         struct header0_info *hdr = buf;
 298         uint32_t init_boot_size;
 299
 300         memset(buf, '\0', RK_INIT_OFFSET * RK_BLK_SIZE);
 301         hdr->magic = cpu_to_le32(RK_MAGIC);
 302         hdr->disable_rc4 = cpu_to_le32(!rkcommon_need_rc4_spl(params));
 303         hdr->init_offset = cpu_to_le16(RK_INIT_OFFSET);
 304         hdr->init_size   = cpu_to_le16(spl_params.init_size / RK_BLK_SIZE);
 305
 306         /*
 307          * init_boot_size needs to be set, as it is read by the BootROM
 308          * to determine the size of the next-stage bootloader (e.g. U-Boot
 309          * proper), when used with the back-to-bootrom functionality.
 310          *
 311          * see https://lists.denx.de/pipermail/u-boot/2017-May/293267.html
 312          * for a more detailed explanation by Andy Yan
 313          */
 314         if (spl_params.boot_file)
 315                 init_boot_size = spl_params.init_size + spl_params.boot_size;
 316         else
 317                 init_boot_size = spl_params.init_size + RK_MAX_BOOT_SIZE;
 318         hdr->init_boot_size = cpu_to_le16(init_boot_size / RK_BLK_SIZE);
 319
 320         rc4_encode(buf, RK_BLK_SIZE, rc4_key);
 321 }
 322
 323 static void rkcommon_set_header0_v2(void *buf, struct image_tool_params *params)
 324 {
 325         struct header0_info_v2 *hdr = buf;
 326         uint32_t sector_offset, image_sector_count;
 327         uint32_t image_size_array[2];
 328         uint8_t *image_ptr = NULL;
 329         int i;
 330
 331         printf("Image Type:   Rockchip %s boot image\n",
 332                 rkcommon_get_spl_hdr(params));
 333         memset(buf, '\0', RK_INIT_OFFSET * RK_BLK_SIZE);
 334         hdr->magic   = cpu_to_le32(RK_MAGIC_V2);
 335         hdr->size_and_nimage = cpu_to_le32((2 << 16) + 384);
 336         hdr->boot_flag = cpu_to_le32(HASH_SHA256);
 337         sector_offset = 4;
 338         image_size_array[0] = spl_params.init_size;
 339         image_size_array[1] = spl_params.boot_size;
 340
 341         for (i = 0; i < 2; i++) {
 342                 image_sector_count = image_size_array[i] / RK_BLK_SIZE;
 343                 hdr->images[i].size_and_off = cpu_to_le32((image_sector_count
 344                                                         << 16) + sector_offset);
 345                 hdr->images[i].address = 0xFFFFFFFF;
 346                 hdr->images[i].counter = cpu_to_le32(i + 1);
 347                 image_ptr = buf + sector_offset * RK_BLK_SIZE;
 348                 do_sha256_hash(image_ptr, image_size_array[i],
 349                                hdr->images[i].hash);
 350                 sector_offset = sector_offset + image_sector_count;
 351         }
 352
 353         do_sha256_hash(buf, (void *)hdr->hash - buf, hdr->hash);
 354 }
 355
 356 void rkcommon_set_header(void *buf,  struct stat *sbuf,  int ifd,
 357                          struct image_tool_params *params)
 358 {
 359         struct header1_info *hdr = buf + RK_SPL_HDR_START;
 360
 361         if (rkcommon_is_header_v2(params)) {
 362                 rkcommon_set_header0_v2(buf, params);
 363         } else {
 364                 rkcommon_set_header0(buf, params);
 365
 366                 /* Set up the SPL name (i.e. copy spl_hdr over) */
 367                 if (memcmp(&hdr->magic, "RSAK", 4))
 368                         memcpy(&hdr->magic, rkcommon_get_spl_hdr(params), RK_SPL_HDR_SIZE);
 369
 370                 if (rkcommon_need_rc4_spl(params))
 371                         rkcommon_rc4_encode_spl(buf, RK_SPL_HDR_START,
 372                                                 spl_params.init_size);
 373
 374                 if (spl_params.boot_file) {
 375                         if (rkcommon_need_rc4_spl(params))
 376                                 rkcommon_rc4_encode_spl(buf + RK_SPL_HDR_START,
 377                                                         spl_params.init_size,
 378                                                         spl_params.boot_size);
 379                 }
 380         }
 381 }
 382
 383 static inline unsigned int rkcommon_offset_to_spi(unsigned int offset)
 384 {
 385         /*
 386          * While SD/MMC images use a flat addressing, SPI images are padded
 387          * to use the first 2K of every 4K sector only.
 388          */
 389         return ((offset & ~0x7ff) << 1) + (offset & 0x7ff);
 390 }
 391
 392 static int rkcommon_parse_header(const void *buf, struct header0_info *header0,
 393                                  struct spl_info **spl_info)
 394 {
 395         unsigned int hdr1_offset;
 396         struct header1_info *hdr1_sdmmc, *hdr1_spi;
 397         int i;
 398
 399         if (spl_info)
 400                 *spl_info = NULL;
 401
 402         /*
 403          * The first header (hdr0) is always RC4 encoded, so try to decrypt
 404          * with the well-known key.
 405          */
 406         memcpy((void *)header0, buf, sizeof(struct header0_info));
 407         rc4_encode((void *)header0, sizeof(struct header0_info), rc4_key);
 408
 409         if (le32_to_cpu(header0->magic) != RK_MAGIC)
 410                 return -EPROTO;
 411
 412         /* We don't support RC4 encoded image payloads here, yet... */
 413         if (le32_to_cpu(header0->disable_rc4) == 0)
 414                 return -ENOSYS;
 415
 416         hdr1_offset = le16_to_cpu(header0->init_offset) * RK_BLK_SIZE;
 417         hdr1_sdmmc = (struct header1_info *)(buf + hdr1_offset);
 418         hdr1_spi = (struct header1_info *)(buf +
 419                                            rkcommon_offset_to_spi(hdr1_offset));
 420
 421         for (i = 0; i < ARRAY_SIZE(spl_infos); i++) {
 422                 if (!memcmp(&hdr1_sdmmc->magic, spl_infos[i].spl_hdr,
 423                             RK_SPL_HDR_SIZE)) {
 424                         if (spl_info)
 425                                 *spl_info = &spl_infos[i];
 426                         return IH_TYPE_RKSD;
 427                 } else if (!memcmp(&hdr1_spi->magic, spl_infos[i].spl_hdr,
 428                                    RK_SPL_HDR_SIZE)) {
 429                         if (spl_info)
 430                                 *spl_info = &spl_infos[i];
 431                         return IH_TYPE_RKSPI;
 432                 }
 433         }
 434
 435         return -1;
 436 }
 437
 438 static int rkcommon_parse_header_v2(const void *buf, struct header0_info_v2 *header)
 439 {
 440         memcpy((void *)header, buf, sizeof(struct header0_info_v2));
 441
 442         if (le32_to_cpu(header->magic) != RK_MAGIC_V2)
 443                 return -EPROTO;
 444
 445         return 0;
 446 }
 447
 448 int rkcommon_verify_header(unsigned char *buf, int size,
 449                            struct image_tool_params *params)
 450 {
 451         struct header0_info header0;
 452         struct spl_info *img_spl_info, *spl_info;
 453         int ret;
 454
 455         /* spl_hdr is abandon on header_v2 */
 456         if ((*(uint32_t *)buf) == RK_MAGIC_V2)
 457                 return 0;
 458
 459         ret = rkcommon_parse_header(buf, &header0, &img_spl_info);
 460
 461         /* If this is the (unimplemented) RC4 case, then rewrite the result */
 462         if (ret == -ENOSYS)
 463                 return 0;
 464
 465         if (ret < 0)
 466                 return ret;
 467
 468         /*
 469          * If no 'imagename' is specified via the commandline (e.g. if this is
 470          * 'dumpimage -l' w/o any further constraints), we accept any spl_info.
 471          */
 472         if (params->imagename == NULL)
 473                 return 0;
 474
 475         /* Match the 'imagename' against the 'spl_hdr' found */
 476         spl_info = rkcommon_get_spl_info(params->imagename);
 477         if (spl_info && img_spl_info)
 478                 return strcmp(spl_info->spl_hdr, img_spl_info->spl_hdr);
 479
 480         return -ENOENT;
 481 }
 482
 483 void rkcommon_print_header(const void *buf)
 484 {
 485         struct header0_info header0;
 486         struct header0_info_v2 header0_v2;
 487         struct spl_info *spl_info;
 488         uint8_t image_type;
 489         int ret, boot_size, init_size;
 490
 491         if ((*(uint32_t *)buf) == RK_MAGIC_V2) {
 492                 ret = rkcommon_parse_header_v2(buf, &header0_v2);
 493
 494                 if (ret < 0) {
 495                         fprintf(stderr, "Error: image verification failed\n");
 496                         return;
 497                 }
 498
 499                 init_size = header0_v2.images[0].size_and_off >> 16;
 500                 init_size = init_size * RK_BLK_SIZE;
 501                 boot_size = header0_v2.images[1].size_and_off >> 16;
 502                 boot_size = boot_size * RK_BLK_SIZE;
 503         } else {
 504                 ret = rkcommon_parse_header(buf, &header0, &spl_info);
 505
 506                 /* If this is the (unimplemented) RC4 case, then fail silently */
 507                 if (ret == -ENOSYS)
 508                         return;
 509
 510                 if (ret < 0) {
 511                         fprintf(stderr, "Error: image verification failed\n");
 512                         return;
 513                 }
 514
 515                 image_type = ret;
 516                 init_size = header0.init_size * RK_BLK_SIZE;
 517                 boot_size = header0.init_boot_size * RK_BLK_SIZE - init_size;
 518
 519                 printf("Image Type:   Rockchip %s (%s) boot image\n",
 520                        spl_info->spl_hdr,
 521                        (image_type == IH_TYPE_RKSD) ? "SD/MMC" : "SPI");
 522         }
 523
 524         printf("Init Data Size: %d bytes\n", init_size);
 525
 526         if (boot_size != RK_MAX_BOOT_SIZE)
 527                 printf("Boot Data Size: %d bytes\n", boot_size);
 528 }
 529
 530 void rkcommon_rc4_encode_spl(void *buf, unsigned int offset, unsigned int size)
 531 {
 532         unsigned int remaining = size;
 533
 534         while (remaining > 0) {
 535                 int step = (remaining > RK_BLK_SIZE) ? RK_BLK_SIZE : remaining;
 536
 537                 rc4_encode(buf + offset, step, rc4_key);
 538                 offset += RK_BLK_SIZE;
 539                 remaining -= step;
 540         }
 541 }
 542
 543 int rkcommon_vrec_header(struct image_tool_params *params,
 544                          struct image_type_params *tparams)
 545 {
 546         /*
 547          * The SPL image looks as follows:
 548          *
 549          * 0x0    header0 (see rkcommon.c)
 550          * 0x800  spl_name ('RK30', ..., 'RK33')
 551          *        (start of the payload for AArch64 payloads: we expect the
 552          *        first 4 bytes to be available for overwriting with our
 553          *        spl_name)
 554          * 0x804  first instruction to be executed
 555          *        (start of the image/payload for 32bit payloads)
 556          *
 557          * For AArch64 (ARMv8) payloads, natural alignment (8-bytes) is
 558          * required for its sections (so the image we receive needs to
 559          * have the first 4 bytes reserved for the spl_name).  Reserving
 560          * these 4 bytes is done using the BOOT0_HOOK infrastructure.
 561          *
 562          * The header is always at 0x800 (as we now use a payload
 563          * prepadded using the boot0 hook for all targets): the first
 564          * 4 bytes of these images can safely be overwritten using the
 565          * boot magic.
 566          */
 567         tparams->header_size = RK_SPL_HDR_START;
 568
 569         /* Allocate, clear and install the header */
 570         tparams->hdr = malloc(tparams->header_size);
 571         if (!tparams->hdr) {
 572                 fprintf(stderr, "%s: Can't alloc header: %s\n",
 573                         params->cmdname, strerror(errno));
 574                 exit(EXIT_FAILURE);
 575         }
 576         memset(tparams->hdr, 0, tparams->header_size);
 577
 578         /*
 579          * We need to store the original file-size (i.e. before padding), as
 580          * imagetool does not set this during its adjustment of file_size.
 581          */
 582         params->orig_file_size = tparams->header_size +
 583                 spl_params.init_size + spl_params.boot_size;
 584
 585         params->file_size = ROUND(params->orig_file_size, RK_SIZE_ALIGN);
 586
 587         /* Ignoring pad len, since we are using our own copy_image() */
 588         return 0;
 589 }
 590
 591 static int pad_file(struct image_tool_params *params, int ifd, int pad)
 592 {
 593         uint8_t zeros[4096];
 594
 595         memset(zeros, 0, sizeof(zeros));
 596
 597         while (pad > 0) {
 598                 int todo = sizeof(zeros);
 599
 600                 if (todo > pad)
 601                         todo = pad;
 602                 if (write(ifd, (char *)&zeros, todo) != todo) {
 603                         fprintf(stderr, "%s: Write error on %s: %s\n",
 604                                 params->cmdname, params->imagefile,
 605                                 strerror(errno));
 606                         return -1;
 607                 }
 608                 pad -= todo;
 609         }
 610
 611         return 0;
 612 }
 613
 614 static int copy_file(struct image_tool_params *params, int ifd,
 615                      const char *file, int padded_size)
 616 {
 617         int dfd;
 618         struct stat sbuf;
 619         unsigned char *ptr;
 620         int size;
 621
 622         if (params->vflag)
 623                 fprintf(stderr, "Adding Image %s\n", file);
 624
 625         dfd = open(file, O_RDONLY | O_BINARY);
 626         if (dfd < 0) {
 627                 fprintf(stderr, "%s: Can't open %s: %s\n",
 628                         params->cmdname, file, strerror(errno));
 629                 return -1;
 630         }
 631
 632         if (fstat(dfd, &sbuf) < 0) {
 633                 fprintf(stderr, "%s: Can't stat %s: %s\n",
 634                         params->cmdname, file, strerror(errno));
 635                 goto err_close;
 636         }
 637
 638         if (params->vflag)
 639                 fprintf(stderr, "Size %u(pad to %u)\n",
 640                         (int)sbuf.st_size, padded_size);
 641
 642         ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
 643         if (ptr == MAP_FAILED) {
 644                 fprintf(stderr, "%s: Can't read %s: %s\n",
 645                         params->cmdname, file, strerror(errno));
 646                 goto err_munmap;
 647         }
 648
 649         size = sbuf.st_size;
 650         if (write(ifd, ptr, size) != size) {
 651                 fprintf(stderr, "%s: Write error on %s: %s\n",
 652                         params->cmdname, params->imagefile, strerror(errno));
 653                 goto err_munmap;
 654         }
 655
 656         munmap((void *)ptr, sbuf.st_size);
 657         close(dfd);
 658         return pad_file(params, ifd, padded_size - size);
 659
 660 err_munmap:
 661         munmap((void *)ptr, sbuf.st_size);
 662 err_close:
 663         close(dfd);
 664         return -1;
 665 }
 666
 667 int rockchip_copy_image(int ifd, struct image_tool_params *params)
 668 {
 669         int ret;
 670
 671         ret = copy_file(params, ifd, spl_params.init_file,
 672                         spl_params.init_size);
 673         if (ret)
 674                 return ret;
 675
 676         if (spl_params.boot_file) {
 677                 ret = copy_file(params, ifd, spl_params.boot_file,
 678                                 spl_params.boot_size);
 679                 if (ret)
 680                         return ret;
 681         }
 682
 683         return pad_file(params, ifd,
 684                         params->file_size - params->orig_file_size);
 685 }