tools/rkcommon.c

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