1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2010-2015 Freescale Semiconductor, Inc.
4 */
5
6 #include <common.h>
7 #include <config.h>
8 #include <fuse.h>
9 #include <mapmem.h>
10 #include <image.h>
11 #include <asm/io.h>
12 #include <asm/system.h>
13 #include <asm/arch/clock.h>
14 #include <asm/arch/sys_proto.h>
15 #include <asm/mach-imx/hab.h>
16
17 #define ALIGN_SIZE 0x1000
18 #define MX6DQ_PU_IROM_MMU_EN_VAR 0x009024a8
19 #define MX6DLS_PU_IROM_MMU_EN_VAR 0x00901dd0
20 #define MX6SL_PU_IROM_MMU_EN_VAR 0x00901c60
21 #define IS_HAB_ENABLED_BIT \
22 (is_soc_type(MXC_SOC_MX7ULP) ? 0x80000000 : \
23 (is_soc_type(MXC_SOC_MX7) ? 0x2000000 : 0x2))
24
ivt_header_error(const char * err_str,struct ivt_header * ivt_hdr)25 static int ivt_header_error(const char *err_str, struct ivt_header *ivt_hdr)
26 {
27 printf("%s magic=0x%x length=0x%02x version=0x%x\n", err_str,
28 ivt_hdr->magic, ivt_hdr->length, ivt_hdr->version);
29
30 return 1;
31 }
32
verify_ivt_header(struct ivt_header * ivt_hdr)33 static int verify_ivt_header(struct ivt_header *ivt_hdr)
34 {
35 int result = 0;
36
37 if (ivt_hdr->magic != IVT_HEADER_MAGIC)
38 result = ivt_header_error("bad magic", ivt_hdr);
39
40 if (be16_to_cpu(ivt_hdr->length) != IVT_TOTAL_LENGTH)
41 result = ivt_header_error("bad length", ivt_hdr);
42
43 if (ivt_hdr->version != IVT_HEADER_V1 &&
44 ivt_hdr->version != IVT_HEADER_V2)
45 result = ivt_header_error("bad version", ivt_hdr);
46
47 return result;
48 }
49
50 #if !defined(CONFIG_SPL_BUILD)
51
52 #define MAX_RECORD_BYTES (8*1024) /* 4 kbytes */
53
54 struct record {
55 uint8_t tag; /* Tag */
56 uint8_t len[2]; /* Length */
57 uint8_t par; /* Version */
58 uint8_t contents[MAX_RECORD_BYTES];/* Record Data */
59 bool any_rec_flag;
60 };
61
62 static char *rsn_str[] = {
63 "RSN = HAB_RSN_ANY (0x00)\n",
64 "RSN = HAB_ENG_FAIL (0x30)\n",
65 "RSN = HAB_INV_ADDRESS (0x22)\n",
66 "RSN = HAB_INV_ASSERTION (0x0C)\n",
67 "RSN = HAB_INV_CALL (0x28)\n",
68 "RSN = HAB_INV_CERTIFICATE (0x21)\n",
69 "RSN = HAB_INV_COMMAND (0x06)\n",
70 "RSN = HAB_INV_CSF (0x11)\n",
71 "RSN = HAB_INV_DCD (0x27)\n",
72 "RSN = HAB_INV_INDEX (0x0F)\n",
73 "RSN = HAB_INV_IVT (0x05)\n",
74 "RSN = HAB_INV_KEY (0x1D)\n",
75 "RSN = HAB_INV_RETURN (0x1E)\n",
76 "RSN = HAB_INV_SIGNATURE (0x18)\n",
77 "RSN = HAB_INV_SIZE (0x17)\n",
78 "RSN = HAB_MEM_FAIL (0x2E)\n",
79 "RSN = HAB_OVR_COUNT (0x2B)\n",
80 "RSN = HAB_OVR_STORAGE (0x2D)\n",
81 "RSN = HAB_UNS_ALGORITHM (0x12)\n",
82 "RSN = HAB_UNS_COMMAND (0x03)\n",
83 "RSN = HAB_UNS_ENGINE (0x0A)\n",
84 "RSN = HAB_UNS_ITEM (0x24)\n",
85 "RSN = HAB_UNS_KEY (0x1B)\n",
86 "RSN = HAB_UNS_PROTOCOL (0x14)\n",
87 "RSN = HAB_UNS_STATE (0x09)\n",
88 "RSN = INVALID\n",
89 NULL
90 };
91
92 static char *sts_str[] = {
93 "STS = HAB_SUCCESS (0xF0)\n",
94 "STS = HAB_FAILURE (0x33)\n",
95 "STS = HAB_WARNING (0x69)\n",
96 "STS = INVALID\n",
97 NULL
98 };
99
100 static char *eng_str[] = {
101 "ENG = HAB_ENG_ANY (0x00)\n",
102 "ENG = HAB_ENG_SCC (0x03)\n",
103 "ENG = HAB_ENG_RTIC (0x05)\n",
104 "ENG = HAB_ENG_SAHARA (0x06)\n",
105 "ENG = HAB_ENG_CSU (0x0A)\n",
106 "ENG = HAB_ENG_SRTC (0x0C)\n",
107 "ENG = HAB_ENG_DCP (0x1B)\n",
108 "ENG = HAB_ENG_CAAM (0x1D)\n",
109 "ENG = HAB_ENG_SNVS (0x1E)\n",
110 "ENG = HAB_ENG_OCOTP (0x21)\n",
111 "ENG = HAB_ENG_DTCP (0x22)\n",
112 "ENG = HAB_ENG_ROM (0x36)\n",
113 "ENG = HAB_ENG_HDCP (0x24)\n",
114 "ENG = HAB_ENG_RTL (0x77)\n",
115 "ENG = HAB_ENG_SW (0xFF)\n",
116 "ENG = INVALID\n",
117 NULL
118 };
119
120 static char *ctx_str[] = {
121 "CTX = HAB_CTX_ANY(0x00)\n",
122 "CTX = HAB_CTX_FAB (0xFF)\n",
123 "CTX = HAB_CTX_ENTRY (0xE1)\n",
124 "CTX = HAB_CTX_TARGET (0x33)\n",
125 "CTX = HAB_CTX_AUTHENTICATE (0x0A)\n",
126 "CTX = HAB_CTX_DCD (0xDD)\n",
127 "CTX = HAB_CTX_CSF (0xCF)\n",
128 "CTX = HAB_CTX_COMMAND (0xC0)\n",
129 "CTX = HAB_CTX_AUT_DAT (0xDB)\n",
130 "CTX = HAB_CTX_ASSERT (0xA0)\n",
131 "CTX = HAB_CTX_EXIT (0xEE)\n",
132 "CTX = INVALID\n",
133 NULL
134 };
135
136 static uint8_t hab_statuses[5] = {
137 HAB_STS_ANY,
138 HAB_FAILURE,
139 HAB_WARNING,
140 HAB_SUCCESS,
141 -1
142 };
143
144 static uint8_t hab_reasons[26] = {
145 HAB_RSN_ANY,
146 HAB_ENG_FAIL,
147 HAB_INV_ADDRESS,
148 HAB_INV_ASSERTION,
149 HAB_INV_CALL,
150 HAB_INV_CERTIFICATE,
151 HAB_INV_COMMAND,
152 HAB_INV_CSF,
153 HAB_INV_DCD,
154 HAB_INV_INDEX,
155 HAB_INV_IVT,
156 HAB_INV_KEY,
157 HAB_INV_RETURN,
158 HAB_INV_SIGNATURE,
159 HAB_INV_SIZE,
160 HAB_MEM_FAIL,
161 HAB_OVR_COUNT,
162 HAB_OVR_STORAGE,
163 HAB_UNS_ALGORITHM,
164 HAB_UNS_COMMAND,
165 HAB_UNS_ENGINE,
166 HAB_UNS_ITEM,
167 HAB_UNS_KEY,
168 HAB_UNS_PROTOCOL,
169 HAB_UNS_STATE,
170 -1
171 };
172
173 static uint8_t hab_contexts[12] = {
174 HAB_CTX_ANY,
175 HAB_CTX_FAB,
176 HAB_CTX_ENTRY,
177 HAB_CTX_TARGET,
178 HAB_CTX_AUTHENTICATE,
179 HAB_CTX_DCD,
180 HAB_CTX_CSF,
181 HAB_CTX_COMMAND,
182 HAB_CTX_AUT_DAT,
183 HAB_CTX_ASSERT,
184 HAB_CTX_EXIT,
185 -1
186 };
187
188 static uint8_t hab_engines[16] = {
189 HAB_ENG_ANY,
190 HAB_ENG_SCC,
191 HAB_ENG_RTIC,
192 HAB_ENG_SAHARA,
193 HAB_ENG_CSU,
194 HAB_ENG_SRTC,
195 HAB_ENG_DCP,
196 HAB_ENG_CAAM,
197 HAB_ENG_SNVS,
198 HAB_ENG_OCOTP,
199 HAB_ENG_DTCP,
200 HAB_ENG_ROM,
201 HAB_ENG_HDCP,
202 HAB_ENG_RTL,
203 HAB_ENG_SW,
204 -1
205 };
206
get_idx(uint8_t * list,uint8_t tgt)207 static inline uint8_t get_idx(uint8_t *list, uint8_t tgt)
208 {
209 uint8_t idx = 0;
210 uint8_t element = list[idx];
211 while (element != -1) {
212 if (element == tgt)
213 return idx;
214 element = list[++idx];
215 }
216 return -1;
217 }
218
process_event_record(uint8_t * event_data,size_t bytes)219 static void process_event_record(uint8_t *event_data, size_t bytes)
220 {
221 struct record *rec = (struct record *)event_data;
222
223 printf("\n\n%s", sts_str[get_idx(hab_statuses, rec->contents[0])]);
224 printf("%s", rsn_str[get_idx(hab_reasons, rec->contents[1])]);
225 printf("%s", ctx_str[get_idx(hab_contexts, rec->contents[2])]);
226 printf("%s", eng_str[get_idx(hab_engines, rec->contents[3])]);
227 }
228
display_event(uint8_t * event_data,size_t bytes)229 static void display_event(uint8_t *event_data, size_t bytes)
230 {
231 uint32_t i;
232
233 if (!(event_data && bytes > 0))
234 return;
235
236 for (i = 0; i < bytes; i++) {
237 if (i == 0)
238 printf("\t0x%02x", event_data[i]);
239 else if ((i % 8) == 0)
240 printf("\n\t0x%02x", event_data[i]);
241 else
242 printf(" 0x%02x", event_data[i]);
243 }
244
245 process_event_record(event_data, bytes);
246 }
247
get_hab_status(void)248 static int get_hab_status(void)
249 {
250 uint32_t index = 0; /* Loop index */
251 uint8_t event_data[128]; /* Event data buffer */
252 size_t bytes = sizeof(event_data); /* Event size in bytes */
253 enum hab_config config = 0;
254 enum hab_state state = 0;
255 hab_rvt_report_event_t *hab_rvt_report_event;
256 hab_rvt_report_status_t *hab_rvt_report_status;
257
258 hab_rvt_report_event = (hab_rvt_report_event_t *)HAB_RVT_REPORT_EVENT;
259 hab_rvt_report_status =
260 (hab_rvt_report_status_t *)HAB_RVT_REPORT_STATUS;
261
262 if (imx_hab_is_enabled())
263 puts("\nSecure boot enabled\n");
264 else
265 puts("\nSecure boot disabled\n");
266
267 /* Check HAB status */
268 if (hab_rvt_report_status(&config, &state) != HAB_SUCCESS) {
269 printf("\nHAB Configuration: 0x%02x, HAB State: 0x%02x\n",
270 config, state);
271
272 /* Display HAB Error events */
273 while (hab_rvt_report_event(HAB_FAILURE, index, event_data,
274 &bytes) == HAB_SUCCESS) {
275 puts("\n");
276 printf("--------- HAB Event %d -----------------\n",
277 index + 1);
278 puts("event data:\n");
279 display_event(event_data, bytes);
280 puts("\n");
281 bytes = sizeof(event_data);
282 index++;
283 }
284 }
285 /* Display message if no HAB events are found */
286 else {
287 printf("\nHAB Configuration: 0x%02x, HAB State: 0x%02x\n",
288 config, state);
289 puts("No HAB Events Found!\n\n");
290 }
291 return 0;
292 }
293
do_hab_status(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])294 static int do_hab_status(cmd_tbl_t *cmdtp, int flag, int argc,
295 char * const argv[])
296 {
297 if ((argc != 1)) {
298 cmd_usage(cmdtp);
299 return 1;
300 }
301
302 get_hab_status();
303
304 return 0;
305 }
306
get_image_ivt_offset(ulong img_addr)307 static ulong get_image_ivt_offset(ulong img_addr)
308 {
309 const void *buf;
310
311 buf = map_sysmem(img_addr, 0);
312 switch (genimg_get_format(buf)) {
313 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
314 case IMAGE_FORMAT_LEGACY:
315 return (image_get_image_size((image_header_t *)img_addr)
316 + 0x1000 - 1) & ~(0x1000 - 1);
317 #endif
318 #if IMAGE_ENABLE_FIT
319 case IMAGE_FORMAT_FIT:
320 return (fit_get_size(buf) + 0x1000 - 1) & ~(0x1000 - 1);
321 #endif
322 default:
323 return 0;
324 }
325 }
326
do_authenticate_image(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])327 static int do_authenticate_image(cmd_tbl_t *cmdtp, int flag, int argc,
328 char * const argv[])
329 {
330 ulong addr, length, ivt_offset;
331 int rcode = 0;
332
333 if (argc < 3)
334 return CMD_RET_USAGE;
335
336 addr = simple_strtoul(argv[1], NULL, 16);
337 length = simple_strtoul(argv[2], NULL, 16);
338 if (argc == 3)
339 ivt_offset = get_image_ivt_offset(addr);
340 else
341 ivt_offset = simple_strtoul(argv[3], NULL, 16);
342
343 rcode = imx_hab_authenticate_image(addr, length, ivt_offset);
344 if (rcode == 0)
345 rcode = CMD_RET_SUCCESS;
346 else
347 rcode = CMD_RET_FAILURE;
348
349 return rcode;
350 }
351
do_hab_failsafe(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])352 static int do_hab_failsafe(cmd_tbl_t *cmdtp, int flag, int argc,
353 char * const argv[])
354 {
355 hab_rvt_failsafe_t *hab_rvt_failsafe;
356
357 if (argc != 1) {
358 cmd_usage(cmdtp);
359 return 1;
360 }
361
362 hab_rvt_failsafe = (hab_rvt_failsafe_t *)HAB_RVT_FAILSAFE;
363 hab_rvt_failsafe();
364
365 return 0;
366 }
367
do_hab_version(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])368 static int do_hab_version(cmd_tbl_t *cmdtp, int flag, int argc,
369 char * const argv[])
370 {
371 struct hab_hdr *hdr = (struct hab_hdr *)HAB_RVT_BASE;
372
373 if (hdr->tag != HAB_TAG_RVT) {
374 printf("Unexpected header tag: %x\n", hdr->tag);
375 return CMD_RET_FAILURE;
376 }
377
378 printf("HAB version: %d.%d\n", hdr->par >> 4, hdr->par & 0xf);
379
380 return 0;
381 }
382
do_authenticate_image_or_failover(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])383 static int do_authenticate_image_or_failover(cmd_tbl_t *cmdtp, int flag,
384 int argc, char * const argv[])
385 {
386 int ret = CMD_RET_FAILURE;
387
388 if (argc != 4) {
389 ret = CMD_RET_USAGE;
390 goto error;
391 }
392
393 if (!imx_hab_is_enabled()) {
394 printf("error: secure boot disabled\n");
395 goto error;
396 }
397
398 if (do_authenticate_image(NULL, flag, argc, argv) != CMD_RET_SUCCESS) {
399 fprintf(stderr, "authentication fail -> %s %s %s %s\n",
400 argv[0], argv[1], argv[2], argv[3]);
401 do_hab_failsafe(0, 0, 1, NULL);
402 };
403 ret = CMD_RET_SUCCESS;
404 error:
405 return ret;
406 }
407
408 U_BOOT_CMD(
409 hab_status, CONFIG_SYS_MAXARGS, 1, do_hab_status,
410 "display HAB status",
411 ""
412 );
413
414 U_BOOT_CMD(
415 hab_auth_img, 4, 0, do_authenticate_image,
416 "authenticate image via HAB",
417 "addr length ivt_offset\n"
418 "addr - image hex address\n"
419 "length - image hex length\n"
420 "ivt_offset - hex offset of IVT in the image"
421 );
422
423 U_BOOT_CMD(
424 hab_failsafe, CONFIG_SYS_MAXARGS, 1, do_hab_failsafe,
425 "run BootROM failsafe routine",
426 ""
427 );
428
429 U_BOOT_CMD(
430 hab_auth_img_or_fail, 4, 0,
431 do_authenticate_image_or_failover,
432 "authenticate image via HAB on failure drop to USB BootROM mode",
433 "addr length ivt_offset\n"
434 "addr - image hex address\n"
435 "length - image hex length\n"
436 "ivt_offset - hex offset of IVT in the image"
437 );
438
439 U_BOOT_CMD(
440 hab_version, 1, 0, do_hab_version,
441 "print HAB major/minor version",
442 ""
443 );
444
445 #endif /* !defined(CONFIG_SPL_BUILD) */
446
447 /* Get CSF Header length */
get_hab_hdr_len(struct hab_hdr * hdr)448 static int get_hab_hdr_len(struct hab_hdr *hdr)
449 {
450 return (size_t)((hdr->len[0] << 8) + (hdr->len[1]));
451 }
452
453 /* Check whether addr lies between start and
454 * end and is within the length of the image
455 */
chk_bounds(u8 * addr,size_t bytes,u8 * start,u8 * end)456 static int chk_bounds(u8 *addr, size_t bytes, u8 *start, u8 *end)
457 {
458 size_t csf_size = (size_t)((end + 1) - addr);
459
460 return (addr && (addr >= start) && (addr <= end) &&
461 (csf_size >= bytes));
462 }
463
464 /* Get Length of each command in CSF */
get_csf_cmd_hdr_len(u8 * csf_hdr)465 static int get_csf_cmd_hdr_len(u8 *csf_hdr)
466 {
467 if (*csf_hdr == HAB_CMD_HDR)
468 return sizeof(struct hab_hdr);
469
470 return get_hab_hdr_len((struct hab_hdr *)csf_hdr);
471 }
472
473 /* Check if CSF is valid */
csf_is_valid(struct ivt * ivt,ulong start_addr,size_t bytes)474 static bool csf_is_valid(struct ivt *ivt, ulong start_addr, size_t bytes)
475 {
476 u8 *start = (u8 *)start_addr;
477 u8 *csf_hdr;
478 u8 *end;
479
480 size_t csf_hdr_len;
481 size_t cmd_hdr_len;
482 size_t offset = 0;
483
484 if (bytes != 0)
485 end = start + bytes - 1;
486 else
487 end = start;
488
489 /* Verify if CSF pointer content is zero */
490 if (!ivt->csf) {
491 puts("Error: CSF pointer is NULL\n");
492 return false;
493 }
494
495 csf_hdr = (u8 *)ivt->csf;
496
497 /* Verify if CSF Header exist */
498 if (*csf_hdr != HAB_CMD_HDR) {
499 puts("Error: CSF header command not found\n");
500 return false;
501 }
502
503 csf_hdr_len = get_hab_hdr_len((struct hab_hdr *)csf_hdr);
504
505 /* Check if the CSF lies within the image bounds */
506 if (!chk_bounds(csf_hdr, csf_hdr_len, start, end)) {
507 puts("Error: CSF lies outside the image bounds\n");
508 return false;
509 }
510
511 do {
512 struct hab_hdr *cmd;
513
514 cmd = (struct hab_hdr *)&csf_hdr[offset];
515
516 switch (cmd->tag) {
517 case (HAB_CMD_WRT_DAT):
518 puts("Error: Deprecated write command found\n");
519 return false;
520 case (HAB_CMD_CHK_DAT):
521 puts("Error: Deprecated check command found\n");
522 return false;
523 case (HAB_CMD_SET):
524 if (cmd->par == HAB_PAR_MID) {
525 puts("Error: Deprecated Set MID command found\n");
526 return false;
527 }
528 default:
529 break;
530 }
531
532 cmd_hdr_len = get_csf_cmd_hdr_len(&csf_hdr[offset]);
533 if (!cmd_hdr_len) {
534 puts("Error: Invalid command length\n");
535 return false;
536 }
537 offset += cmd_hdr_len;
538
539 } while (offset < csf_hdr_len);
540
541 return true;
542 }
543
imx_hab_is_enabled(void)544 bool imx_hab_is_enabled(void)
545 {
546 struct imx_sec_config_fuse_t *fuse =
547 (struct imx_sec_config_fuse_t *)&imx_sec_config_fuse;
548 uint32_t reg;
549 int ret;
550
551 ret = fuse_read(fuse->bank, fuse->word, ®);
552 if (ret) {
553 puts("\nSecure boot fuse read error\n");
554 return ret;
555 }
556
557 return (reg & IS_HAB_ENABLED_BIT) == IS_HAB_ENABLED_BIT;
558 }
559
imx_hab_authenticate_image(uint32_t ddr_start,uint32_t image_size,uint32_t ivt_offset)560 int imx_hab_authenticate_image(uint32_t ddr_start, uint32_t image_size,
561 uint32_t ivt_offset)
562 {
563 uint32_t load_addr = 0;
564 size_t bytes;
565 uint32_t ivt_addr = 0;
566 int result = 1;
567 ulong start;
568 hab_rvt_authenticate_image_t *hab_rvt_authenticate_image;
569 hab_rvt_entry_t *hab_rvt_entry;
570 hab_rvt_exit_t *hab_rvt_exit;
571 hab_rvt_check_target_t *hab_rvt_check_target;
572 struct ivt *ivt;
573 struct ivt_header *ivt_hdr;
574 enum hab_status status;
575
576 hab_rvt_authenticate_image =
577 (hab_rvt_authenticate_image_t *)HAB_RVT_AUTHENTICATE_IMAGE;
578 hab_rvt_entry = (hab_rvt_entry_t *)HAB_RVT_ENTRY;
579 hab_rvt_exit = (hab_rvt_exit_t *)HAB_RVT_EXIT;
580 hab_rvt_check_target = (hab_rvt_check_target_t *)HAB_RVT_CHECK_TARGET;
581
582 if (!imx_hab_is_enabled()) {
583 puts("hab fuse not enabled\n");
584 return 0;
585 }
586
587 printf("\nAuthenticate image from DDR location 0x%x...\n",
588 ddr_start);
589
590 hab_caam_clock_enable(1);
591
592 /* Calculate IVT address header */
593 ivt_addr = ddr_start + ivt_offset;
594 ivt = (struct ivt *)ivt_addr;
595 ivt_hdr = &ivt->hdr;
596
597 /* Verify IVT header bugging out on error */
598 if (verify_ivt_header(ivt_hdr))
599 goto hab_authentication_exit;
600
601 /* Verify IVT body */
602 if (ivt->self != ivt_addr) {
603 printf("ivt->self 0x%08x pointer is 0x%08x\n",
604 ivt->self, ivt_addr);
605 goto hab_authentication_exit;
606 }
607
608 /* Verify if IVT DCD pointer is NULL */
609 if (ivt->dcd) {
610 puts("Error: DCD pointer must be NULL\n");
611 goto hab_authentication_exit;
612 }
613
614 start = ddr_start;
615 bytes = image_size;
616
617 /* Verify CSF */
618 if (!csf_is_valid(ivt, start, bytes))
619 goto hab_authentication_exit;
620
621 if (hab_rvt_entry() != HAB_SUCCESS) {
622 puts("hab entry function fail\n");
623 goto hab_exit_failure_print_status;
624 }
625
626 status = hab_rvt_check_target(HAB_TGT_MEMORY, (void *)ddr_start, bytes);
627 if (status != HAB_SUCCESS) {
628 printf("HAB check target 0x%08x-0x%08x fail\n",
629 ddr_start, ddr_start + bytes);
630 goto hab_exit_failure_print_status;
631 }
632 #ifdef DEBUG
633 printf("\nivt_offset = 0x%x, ivt addr = 0x%x\n", ivt_offset, ivt_addr);
634 printf("ivt entry = 0x%08x, dcd = 0x%08x, csf = 0x%08x\n", ivt->entry,
635 ivt->dcd, ivt->csf);
636 puts("Dumping IVT\n");
637 print_buffer(ivt_addr, (void *)(ivt_addr), 4, 0x8, 0);
638
639 puts("Dumping CSF Header\n");
640 print_buffer(ivt->csf, (void *)(ivt->csf), 4, 0x10, 0);
641
642 #if !defined(CONFIG_SPL_BUILD)
643 get_hab_status();
644 #endif
645
646 puts("\nCalling authenticate_image in ROM\n");
647 printf("\tivt_offset = 0x%x\n", ivt_offset);
648 printf("\tstart = 0x%08lx\n", start);
649 printf("\tbytes = 0x%x\n", bytes);
650 #endif
651 /*
652 * If the MMU is enabled, we have to notify the ROM
653 * code, or it won't flush the caches when needed.
654 * This is done, by setting the "pu_irom_mmu_enabled"
655 * word to 1. You can find its address by looking in
656 * the ROM map. This is critical for
657 * authenticate_image(). If MMU is enabled, without
658 * setting this bit, authentication will fail and may
659 * crash.
660 */
661 /* Check MMU enabled */
662 if (is_soc_type(MXC_SOC_MX6) && get_cr() & CR_M) {
663 if (is_mx6dq()) {
664 /*
665 * This won't work on Rev 1.0.0 of
666 * i.MX6Q/D, since their ROM doesn't
667 * do cache flushes. don't think any
668 * exist, so we ignore them.
669 */
670 if (!is_mx6dqp())
671 writel(1, MX6DQ_PU_IROM_MMU_EN_VAR);
672 } else if (is_mx6sdl()) {
673 writel(1, MX6DLS_PU_IROM_MMU_EN_VAR);
674 } else if (is_mx6sl()) {
675 writel(1, MX6SL_PU_IROM_MMU_EN_VAR);
676 }
677 }
678
679 load_addr = (uint32_t)hab_rvt_authenticate_image(
680 HAB_CID_UBOOT,
681 ivt_offset, (void **)&start,
682 (size_t *)&bytes, NULL);
683 if (hab_rvt_exit() != HAB_SUCCESS) {
684 puts("hab exit function fail\n");
685 load_addr = 0;
686 }
687
688 hab_exit_failure_print_status:
689 #if !defined(CONFIG_SPL_BUILD)
690 get_hab_status();
691 #endif
692
693 hab_authentication_exit:
694
695 if (load_addr != 0)
696 result = 0;
697
698 return result;
699 }
700