arch/arm/mach-imx/hab.c

   1 /*
   2  * Copyright (C) 2010-2015 Freescale Semiconductor, Inc.
   3  *
   4  * SPDX-License-Identifier:    GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <config.h>
   9 #include <fuse.h>
  10 #include <asm/io.h>
  11 #include <asm/system.h>
  12 #include <asm/arch/clock.h>
  13 #include <asm/arch/sys_proto.h>
  14 #include <asm/mach-imx/hab.h>
  15
  16 /* -------- start of HAB API updates ------------*/
  17
  18 #define hab_rvt_report_event_p                                  \
  19 (                                                               \
  20         (is_mx6dqp()) ?                                         \
  21         ((hab_rvt_report_event_t *)HAB_RVT_REPORT_EVENT_NEW) :  \
  22         (is_mx6dq() && (soc_rev() >= CHIP_REV_1_5)) ?           \
  23         ((hab_rvt_report_event_t *)HAB_RVT_REPORT_EVENT_NEW) :  \
  24         (is_mx6sdl() && (soc_rev() >= CHIP_REV_1_2)) ?          \
  25         ((hab_rvt_report_event_t *)HAB_RVT_REPORT_EVENT_NEW) :  \
  26         ((hab_rvt_report_event_t *)HAB_RVT_REPORT_EVENT)        \
  27 )
  28
  29 #define hab_rvt_report_status_p                                 \
  30 (                                                               \
  31         (is_mx6dqp()) ?                                         \
  32         ((hab_rvt_report_status_t *)HAB_RVT_REPORT_STATUS_NEW) :\
  33         (is_mx6dq() && (soc_rev() >= CHIP_REV_1_5)) ?           \
  34         ((hab_rvt_report_status_t *)HAB_RVT_REPORT_STATUS_NEW) :\
  35         (is_mx6sdl() && (soc_rev() >= CHIP_REV_1_2)) ?          \
  36         ((hab_rvt_report_status_t *)HAB_RVT_REPORT_STATUS_NEW) :\
  37         ((hab_rvt_report_status_t *)HAB_RVT_REPORT_STATUS)      \
  38 )
  39
  40 #define hab_rvt_authenticate_image_p                            \
  41 (                                                               \
  42         (is_mx6dqp()) ?                                         \
  43         ((hab_rvt_authenticate_image_t *)HAB_RVT_AUTHENTICATE_IMAGE_NEW) : \
  44         (is_mx6dq() && (soc_rev() >= CHIP_REV_1_5)) ?           \
  45         ((hab_rvt_authenticate_image_t *)HAB_RVT_AUTHENTICATE_IMAGE_NEW) : \
  46         (is_mx6sdl() && (soc_rev() >= CHIP_REV_1_2)) ?          \
  47         ((hab_rvt_authenticate_image_t *)HAB_RVT_AUTHENTICATE_IMAGE_NEW) : \
  48         ((hab_rvt_authenticate_image_t *)HAB_RVT_AUTHENTICATE_IMAGE)    \
  49 )
  50
  51 #define hab_rvt_entry_p                                         \
  52 (                                                               \
  53         (is_mx6dqp()) ?                                         \
  54         ((hab_rvt_entry_t *)HAB_RVT_ENTRY_NEW) :                \
  55         (is_mx6dq() && (soc_rev() >= CHIP_REV_1_5)) ?           \
  56         ((hab_rvt_entry_t *)HAB_RVT_ENTRY_NEW) :                \
  57         (is_mx6sdl() && (soc_rev() >= CHIP_REV_1_2)) ?          \
  58         ((hab_rvt_entry_t *)HAB_RVT_ENTRY_NEW) :                \
  59         ((hab_rvt_entry_t *)HAB_RVT_ENTRY)                      \
  60 )
  61
  62 #define hab_rvt_exit_p                                          \
  63 (                                                               \
  64         (is_mx6dqp()) ?                                         \
  65         ((hab_rvt_exit_t *)HAB_RVT_EXIT_NEW) :                  \
  66         (is_mx6dq() && (soc_rev() >= CHIP_REV_1_5)) ?           \
  67         ((hab_rvt_exit_t *)HAB_RVT_EXIT_NEW) :                  \
  68         (is_mx6sdl() && (soc_rev() >= CHIP_REV_1_2)) ?          \
  69         ((hab_rvt_exit_t *)HAB_RVT_EXIT_NEW) :                  \
  70         ((hab_rvt_exit_t *)HAB_RVT_EXIT)                        \
  71 )
  72
  73 static inline enum hab_status hab_rvt_check_target_new(enum hab_target target,
  74                                                        const void *start,
  75                                                        size_t bytes)
  76 {
  77         return HAB_SUCCESS;
  78 }
  79
  80 #define hab_rvt_check_target_p                                  \
  81 (                                                               \
  82         (is_mx6dqp()) ?                                         \
  83         ((hab_rvt_check_target_t *)hab_rvt_check_target_new) :  \
  84         (is_mx6dq() && (soc_rev() >= CHIP_REV_1_5)) ?           \
  85         ((hab_rvt_check_target_t *)hab_rvt_check_target_new) :  \
  86         (is_mx6sdl() && (soc_rev() >= CHIP_REV_1_2)) ?          \
  87         ((hab_rvt_check_target_t *)hab_rvt_check_target_new) :  \
  88         ((hab_rvt_check_target_t *)HAB_RVT_CHECK_TARGET)        \
  89 )
  90
  91 #define ALIGN_SIZE              0x1000
  92 #define MX6DQ_PU_IROM_MMU_EN_VAR        0x009024a8
  93 #define MX6DLS_PU_IROM_MMU_EN_VAR       0x00901dd0
  94 #define MX6SL_PU_IROM_MMU_EN_VAR        0x00900a18
  95 #define IS_HAB_ENABLED_BIT \
  96         (is_soc_type(MXC_SOC_MX7ULP) ? 0x80000000 :     \
  97          (is_soc_type(MXC_SOC_MX7) ? 0x2000000 : 0x2))
  98
  99 static int ivt_header_error(const char *err_str, struct ivt_header *ivt_hdr)
 100 {
 101         printf("%s magic=0x%x length=0x%02x version=0x%x\n", err_str,
 102                ivt_hdr->magic, ivt_hdr->length, ivt_hdr->version);
 103
 104         return 1;
 105 }
 106
 107 static int verify_ivt_header(struct ivt_header *ivt_hdr)
 108 {
 109         int result = 0;
 110
 111         if (ivt_hdr->magic != IVT_HEADER_MAGIC)
 112                 result = ivt_header_error("bad magic", ivt_hdr);
 113
 114         if (be16_to_cpu(ivt_hdr->length) != IVT_TOTAL_LENGTH)
 115                 result = ivt_header_error("bad length", ivt_hdr);
 116
 117         if (ivt_hdr->version != IVT_HEADER_V1 &&
 118             ivt_hdr->version != IVT_HEADER_V2)
 119                 result = ivt_header_error("bad version", ivt_hdr);
 120
 121         return result;
 122 }
 123
 124 #if !defined(CONFIG_SPL_BUILD)
 125
 126 #define MAX_RECORD_BYTES     (8*1024) /* 4 kbytes */
 127
 128 struct record {
 129         uint8_t  tag;                                           /* Tag */
 130         uint8_t  len[2];                                        /* Length */
 131         uint8_t  par;                                           /* Version */
 132         uint8_t  contents[MAX_RECORD_BYTES];/* Record Data */
 133         bool     any_rec_flag;
 134 };
 135
 136 static char *rsn_str[] = {
 137                           "RSN = HAB_RSN_ANY (0x00)\n",
 138                           "RSN = HAB_ENG_FAIL (0x30)\n",
 139                           "RSN = HAB_INV_ADDRESS (0x22)\n",
 140                           "RSN = HAB_INV_ASSERTION (0x0C)\n",
 141                           "RSN = HAB_INV_CALL (0x28)\n",
 142                           "RSN = HAB_INV_CERTIFICATE (0x21)\n",
 143                           "RSN = HAB_INV_COMMAND (0x06)\n",
 144                           "RSN = HAB_INV_CSF (0x11)\n",
 145                           "RSN = HAB_INV_DCD (0x27)\n",
 146                           "RSN = HAB_INV_INDEX (0x0F)\n",
 147                           "RSN = HAB_INV_IVT (0x05)\n",
 148                           "RSN = HAB_INV_KEY (0x1D)\n",
 149                           "RSN = HAB_INV_RETURN (0x1E)\n",
 150                           "RSN = HAB_INV_SIGNATURE (0x18)\n",
 151                           "RSN = HAB_INV_SIZE (0x17)\n",
 152                           "RSN = HAB_MEM_FAIL (0x2E)\n",
 153                           "RSN = HAB_OVR_COUNT (0x2B)\n",
 154                           "RSN = HAB_OVR_STORAGE (0x2D)\n",
 155                           "RSN = HAB_UNS_ALGORITHM (0x12)\n",
 156                           "RSN = HAB_UNS_COMMAND (0x03)\n",
 157                           "RSN = HAB_UNS_ENGINE (0x0A)\n",
 158                           "RSN = HAB_UNS_ITEM (0x24)\n",
 159                           "RSN = HAB_UNS_KEY (0x1B)\n",
 160                           "RSN = HAB_UNS_PROTOCOL (0x14)\n",
 161                           "RSN = HAB_UNS_STATE (0x09)\n",
 162                           "RSN = INVALID\n",
 163                           NULL
 164 };
 165
 166 static char *sts_str[] = {
 167                           "STS = HAB_SUCCESS (0xF0)\n",
 168                           "STS = HAB_FAILURE (0x33)\n",
 169                           "STS = HAB_WARNING (0x69)\n",
 170                           "STS = INVALID\n",
 171                           NULL
 172 };
 173
 174 static char *eng_str[] = {
 175                           "ENG = HAB_ENG_ANY (0x00)\n",
 176                           "ENG = HAB_ENG_SCC (0x03)\n",
 177                           "ENG = HAB_ENG_RTIC (0x05)\n",
 178                           "ENG = HAB_ENG_SAHARA (0x06)\n",
 179                           "ENG = HAB_ENG_CSU (0x0A)\n",
 180                           "ENG = HAB_ENG_SRTC (0x0C)\n",
 181                           "ENG = HAB_ENG_DCP (0x1B)\n",
 182                           "ENG = HAB_ENG_CAAM (0x1D)\n",
 183                           "ENG = HAB_ENG_SNVS (0x1E)\n",
 184                           "ENG = HAB_ENG_OCOTP (0x21)\n",
 185                           "ENG = HAB_ENG_DTCP (0x22)\n",
 186                           "ENG = HAB_ENG_ROM (0x36)\n",
 187                           "ENG = HAB_ENG_HDCP (0x24)\n",
 188                           "ENG = HAB_ENG_RTL (0x77)\n",
 189                           "ENG = HAB_ENG_SW (0xFF)\n",
 190                           "ENG = INVALID\n",
 191                           NULL
 192 };
 193
 194 static char *ctx_str[] = {
 195                           "CTX = HAB_CTX_ANY(0x00)\n",
 196                           "CTX = HAB_CTX_FAB (0xFF)\n",
 197                           "CTX = HAB_CTX_ENTRY (0xE1)\n",
 198                           "CTX = HAB_CTX_TARGET (0x33)\n",
 199                           "CTX = HAB_CTX_AUTHENTICATE (0x0A)\n",
 200                           "CTX = HAB_CTX_DCD (0xDD)\n",
 201                           "CTX = HAB_CTX_CSF (0xCF)\n",
 202                           "CTX = HAB_CTX_COMMAND (0xC0)\n",
 203                           "CTX = HAB_CTX_AUT_DAT (0xDB)\n",
 204                           "CTX = HAB_CTX_ASSERT (0xA0)\n",
 205                           "CTX = HAB_CTX_EXIT (0xEE)\n",
 206                           "CTX = INVALID\n",
 207                           NULL
 208 };
 209
 210 static uint8_t hab_statuses[5] = {
 211         HAB_STS_ANY,
 212         HAB_FAILURE,
 213         HAB_WARNING,
 214         HAB_SUCCESS,
 215         -1
 216 };
 217
 218 static uint8_t hab_reasons[26] = {
 219         HAB_RSN_ANY,
 220         HAB_ENG_FAIL,
 221         HAB_INV_ADDRESS,
 222         HAB_INV_ASSERTION,
 223         HAB_INV_CALL,
 224         HAB_INV_CERTIFICATE,
 225         HAB_INV_COMMAND,
 226         HAB_INV_CSF,
 227         HAB_INV_DCD,
 228         HAB_INV_INDEX,
 229         HAB_INV_IVT,
 230         HAB_INV_KEY,
 231         HAB_INV_RETURN,
 232         HAB_INV_SIGNATURE,
 233         HAB_INV_SIZE,
 234         HAB_MEM_FAIL,
 235         HAB_OVR_COUNT,
 236         HAB_OVR_STORAGE,
 237         HAB_UNS_ALGORITHM,
 238         HAB_UNS_COMMAND,
 239         HAB_UNS_ENGINE,
 240         HAB_UNS_ITEM,
 241         HAB_UNS_KEY,
 242         HAB_UNS_PROTOCOL,
 243         HAB_UNS_STATE,
 244         -1
 245 };
 246
 247 static uint8_t hab_contexts[12] = {
 248         HAB_CTX_ANY,
 249         HAB_CTX_FAB,
 250         HAB_CTX_ENTRY,
 251         HAB_CTX_TARGET,
 252         HAB_CTX_AUTHENTICATE,
 253         HAB_CTX_DCD,
 254         HAB_CTX_CSF,
 255         HAB_CTX_COMMAND,
 256         HAB_CTX_AUT_DAT,
 257         HAB_CTX_ASSERT,
 258         HAB_CTX_EXIT,
 259         -1
 260 };
 261
 262 static uint8_t hab_engines[16] = {
 263         HAB_ENG_ANY,
 264         HAB_ENG_SCC,
 265         HAB_ENG_RTIC,
 266         HAB_ENG_SAHARA,
 267         HAB_ENG_CSU,
 268         HAB_ENG_SRTC,
 269         HAB_ENG_DCP,
 270         HAB_ENG_CAAM,
 271         HAB_ENG_SNVS,
 272         HAB_ENG_OCOTP,
 273         HAB_ENG_DTCP,
 274         HAB_ENG_ROM,
 275         HAB_ENG_HDCP,
 276         HAB_ENG_RTL,
 277         HAB_ENG_SW,
 278         -1
 279 };
 280
 281 static inline uint8_t get_idx(uint8_t *list, uint8_t tgt)
 282 {
 283         uint8_t idx = 0;
 284         uint8_t element = list[idx];
 285         while (element != -1) {
 286                 if (element == tgt)
 287                         return idx;
 288                 element = list[++idx];
 289         }
 290         return -1;
 291 }
 292
 293 static void process_event_record(uint8_t *event_data, size_t bytes)
 294 {
 295         struct record *rec = (struct record *)event_data;
 296
 297         printf("\n\n%s", sts_str[get_idx(hab_statuses, rec->contents[0])]);
 298         printf("%s", rsn_str[get_idx(hab_reasons, rec->contents[1])]);
 299         printf("%s", ctx_str[get_idx(hab_contexts, rec->contents[2])]);
 300         printf("%s", eng_str[get_idx(hab_engines, rec->contents[3])]);
 301 }
 302
 303 static void display_event(uint8_t *event_data, size_t bytes)
 304 {
 305         uint32_t i;
 306
 307         if (!(event_data && bytes > 0))
 308                 return;
 309
 310         for (i = 0; i < bytes; i++) {
 311                 if (i == 0)
 312                         printf("\t0x%02x", event_data[i]);
 313                 else if ((i % 8) == 0)
 314                         printf("\n\t0x%02x", event_data[i]);
 315                 else
 316                         printf(" 0x%02x", event_data[i]);
 317         }
 318
 319         process_event_record(event_data, bytes);
 320 }
 321
 322 static int get_hab_status(void)
 323 {
 324         uint32_t index = 0; /* Loop index */
 325         uint8_t event_data[128]; /* Event data buffer */
 326         size_t bytes = sizeof(event_data); /* Event size in bytes */
 327         enum hab_config config = 0;
 328         enum hab_state state = 0;
 329         hab_rvt_report_event_t *hab_rvt_report_event;
 330         hab_rvt_report_status_t *hab_rvt_report_status;
 331
 332         hab_rvt_report_event = hab_rvt_report_event_p;
 333         hab_rvt_report_status = hab_rvt_report_status_p;
 334
 335         if (imx_hab_is_enabled())
 336                 puts("\nSecure boot enabled\n");
 337         else
 338                 puts("\nSecure boot disabled\n");
 339
 340         /* Check HAB status */
 341         if (hab_rvt_report_status(&config, &state) != HAB_SUCCESS) {
 342                 printf("\nHAB Configuration: 0x%02x, HAB State: 0x%02x\n",
 343                        config, state);
 344
 345                 /* Display HAB Error events */
 346                 while (hab_rvt_report_event(HAB_FAILURE, index, event_data,
 347                                         &bytes) == HAB_SUCCESS) {
 348                         puts("\n");
 349                         printf("--------- HAB Event %d -----------------\n",
 350                                index + 1);
 351                         puts("event data:\n");
 352                         display_event(event_data, bytes);
 353                         puts("\n");
 354                         bytes = sizeof(event_data);
 355                         index++;
 356                 }
 357         }
 358         /* Display message if no HAB events are found */
 359         else {
 360                 printf("\nHAB Configuration: 0x%02x, HAB State: 0x%02x\n",
 361                        config, state);
 362                 puts("No HAB Events Found!\n\n");
 363         }
 364         return 0;
 365 }
 366
 367 static int do_hab_status(cmd_tbl_t *cmdtp, int flag, int argc,
 368                          char * const argv[])
 369 {
 370         if ((argc != 1)) {
 371                 cmd_usage(cmdtp);
 372                 return 1;
 373         }
 374
 375         get_hab_status();
 376
 377         return 0;
 378 }
 379
 380 static int do_authenticate_image(cmd_tbl_t *cmdtp, int flag, int argc,
 381                                  char * const argv[])
 382 {
 383         ulong   addr, length, ivt_offset;
 384         int     rcode = 0;
 385
 386         if (argc < 4)
 387                 return CMD_RET_USAGE;
 388
 389         addr = simple_strtoul(argv[1], NULL, 16);
 390         length = simple_strtoul(argv[2], NULL, 16);
 391         ivt_offset = simple_strtoul(argv[3], NULL, 16);
 392
 393         rcode = imx_hab_authenticate_image(addr, length, ivt_offset);
 394         if (rcode == 0)
 395                 rcode = CMD_RET_SUCCESS;
 396         else
 397                 rcode = CMD_RET_FAILURE;
 398
 399         return rcode;
 400 }
 401
 402 U_BOOT_CMD(
 403                 hab_status, CONFIG_SYS_MAXARGS, 1, do_hab_status,
 404                 "display HAB status",
 405                 ""
 406           );
 407
 408 U_BOOT_CMD(
 409                 hab_auth_img, 4, 0, do_authenticate_image,
 410                 "authenticate image via HAB",
 411                 "addr length ivt_offset\n"
 412                 "addr - image hex address\n"
 413                 "length - image hex length\n"
 414                 "ivt_offset - hex offset of IVT in the image"
 415           );
 416
 417
 418 #endif /* !defined(CONFIG_SPL_BUILD) */
 419
 420 bool imx_hab_is_enabled(void)
 421 {
 422         struct imx_sec_config_fuse_t *fuse =
 423                 (struct imx_sec_config_fuse_t *)&imx_sec_config_fuse;
 424         uint32_t reg;
 425         int ret;
 426
 427         ret = fuse_read(fuse->bank, fuse->word, &reg);
 428         if (ret) {
 429                 puts("\nSecure boot fuse read error\n");
 430                 return ret;
 431         }
 432
 433         return (reg & IS_HAB_ENABLED_BIT) == IS_HAB_ENABLED_BIT;
 434 }
 435
 436 int imx_hab_authenticate_image(uint32_t ddr_start, uint32_t image_size,
 437                                uint32_t ivt_offset)
 438 {
 439         uint32_t load_addr = 0;
 440         size_t bytes;
 441         uint32_t ivt_addr = 0;
 442         int result = 1;
 443         ulong start;
 444         hab_rvt_authenticate_image_t *hab_rvt_authenticate_image;
 445         hab_rvt_entry_t *hab_rvt_entry;
 446         hab_rvt_exit_t *hab_rvt_exit;
 447         hab_rvt_check_target_t *hab_rvt_check_target;
 448         struct ivt *ivt;
 449         struct ivt_header *ivt_hdr;
 450         enum hab_status status;
 451
 452         hab_rvt_authenticate_image = hab_rvt_authenticate_image_p;
 453         hab_rvt_entry = hab_rvt_entry_p;
 454         hab_rvt_exit = hab_rvt_exit_p;
 455         hab_rvt_check_target = hab_rvt_check_target_p;
 456
 457         if (!imx_hab_is_enabled()) {
 458                 puts("hab fuse not enabled\n");
 459                 return 0;
 460         }
 461
 462         printf("\nAuthenticate image from DDR location 0x%x...\n",
 463                ddr_start);
 464
 465         hab_caam_clock_enable(1);
 466
 467         /* Calculate IVT address header */
 468         ivt_addr = ddr_start + ivt_offset;
 469         ivt = (struct ivt *)ivt_addr;
 470         ivt_hdr = &ivt->hdr;
 471
 472         /* Verify IVT header bugging out on error */
 473         if (verify_ivt_header(ivt_hdr))
 474                 goto hab_caam_clock_disable;
 475
 476         /* Verify IVT body */
 477         if (ivt->self != ivt_addr) {
 478                 printf("ivt->self 0x%08x pointer is 0x%08x\n",
 479                        ivt->self, ivt_addr);
 480                 goto hab_caam_clock_disable;
 481         }
 482
 483         start = ddr_start;
 484         bytes = image_size;
 485
 486         if (hab_rvt_entry() != HAB_SUCCESS) {
 487                 puts("hab entry function fail\n");
 488                 goto hab_exit_failure_print_status;
 489         }
 490
 491         status = hab_rvt_check_target(HAB_TGT_MEMORY, (void *)ddr_start, bytes);
 492         if (status != HAB_SUCCESS) {
 493                 printf("HAB check target 0x%08x-0x%08x fail\n",
 494                        ddr_start, ddr_start + bytes);
 495                 goto hab_exit_failure_print_status;
 496         }
 497 #ifdef DEBUG
 498         printf("\nivt_offset = 0x%x, ivt addr = 0x%x\n", ivt_offset, ivt_addr);
 499         printf("ivt entry = 0x%08x, dcd = 0x%08x, csf = 0x%08x\n", ivt->entry,
 500                ivt->dcd, ivt->csf);
 501         puts("Dumping IVT\n");
 502         print_buffer(ivt_addr, (void *)(ivt_addr), 4, 0x8, 0);
 503
 504         puts("Dumping CSF Header\n");
 505         print_buffer(ivt->csf, (void *)(ivt->csf), 4, 0x10, 0);
 506
 507 #if  !defined(CONFIG_SPL_BUILD)
 508         get_hab_status();
 509 #endif
 510
 511         puts("\nCalling authenticate_image in ROM\n");
 512         printf("\tivt_offset = 0x%x\n", ivt_offset);
 513         printf("\tstart = 0x%08lx\n", start);
 514         printf("\tbytes = 0x%x\n", bytes);
 515 #endif
 516         /*
 517          * If the MMU is enabled, we have to notify the ROM
 518          * code, or it won't flush the caches when needed.
 519          * This is done, by setting the "pu_irom_mmu_enabled"
 520          * word to 1. You can find its address by looking in
 521          * the ROM map. This is critical for
 522          * authenticate_image(). If MMU is enabled, without
 523          * setting this bit, authentication will fail and may
 524          * crash.
 525          */
 526         /* Check MMU enabled */
 527         if (is_soc_type(MXC_SOC_MX6) && get_cr() & CR_M) {
 528                 if (is_mx6dq()) {
 529                         /*
 530                          * This won't work on Rev 1.0.0 of
 531                          * i.MX6Q/D, since their ROM doesn't
 532                          * do cache flushes. don't think any
 533                          * exist, so we ignore them.
 534                          */
 535                         if (!is_mx6dqp())
 536                                 writel(1, MX6DQ_PU_IROM_MMU_EN_VAR);
 537                 } else if (is_mx6sdl()) {
 538                         writel(1, MX6DLS_PU_IROM_MMU_EN_VAR);
 539                 } else if (is_mx6sl()) {
 540                         writel(1, MX6SL_PU_IROM_MMU_EN_VAR);
 541                 }
 542         }
 543
 544         load_addr = (uint32_t)hab_rvt_authenticate_image(
 545                         HAB_CID_UBOOT,
 546                         ivt_offset, (void **)&start,
 547                         (size_t *)&bytes, NULL);
 548         if (hab_rvt_exit() != HAB_SUCCESS) {
 549                 puts("hab exit function fail\n");
 550                 load_addr = 0;
 551         }
 552
 553 hab_exit_failure_print_status:
 554 #if !defined(CONFIG_SPL_BUILD)
 555         get_hab_status();
 556 #endif
 557
 558 hab_caam_clock_disable:
 559         hab_caam_clock_enable(0);
 560
 561         if (load_addr != 0)
 562                 result = 0;
 563
 564         return result;
 565 }