1 /* 2 * Copyright (c) 2015-2021, Renesas Electronics Corporation. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <errno.h> 8 #include <stdint.h> 9 #include <string.h> 10 11 #include <arch_helpers.h> 12 #include <common/bl_common.h> 13 #include <common/debug.h> 14 #include <drivers/auth/auth_mod.h> 15 #include <drivers/io/io_driver.h> 16 #include <drivers/io/io_storage.h> 17 #include <lib/mmio.h> 18 #include <plat/common/platform.h> 19 #include <tools_share/firmware_image_package.h> 20 #include <tools_share/uuid.h> 21 22 #include "io_rcar.h" 23 #include "io_common.h" 24 #include "io_private.h" 25 #include <platform_def.h> 26 27 extern int32_t plat_get_drv_source(uint32_t id, uintptr_t *dev, 28 uintptr_t *image_spec); 29 30 static int32_t rcar_dev_open(const uintptr_t dev_spec __attribute__ ((unused)), 31 io_dev_info_t **dev_info); 32 static int32_t rcar_dev_close(io_dev_info_t *dev_info); 33 34 typedef struct { 35 const int32_t name; 36 const uint32_t offset; 37 const uint32_t attr; 38 } plat_rcar_name_offset_t; 39 40 typedef struct { 41 /* 42 * Put position above the struct to allow {0} on static init. 43 * It is a workaround for a known bug in GCC 44 * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119 45 */ 46 uint32_t position; 47 uint32_t no_load; 48 uintptr_t offset; 49 uint32_t size; 50 uintptr_t dst; 51 uintptr_t partition; /* for eMMC */ 52 /* RCAR_EMMC_PARTITION_BOOT_0 */ 53 /* RCAR_EMMC_PARTITION_BOOT_1 */ 54 /* RCAR_EMMC_PARTITION_USER */ 55 } file_state_t; 56 57 #define RCAR_GET_FLASH_ADR(a, b) ((uint32_t)((0x40000U * (a)) + (b))) 58 #define RCAR_ATTR_SET_CALCADDR(a) ((a) & 0xF) 59 #define RCAR_ATTR_SET_ISNOLOAD(a) (((a) & 0x1) << 16U) 60 #define RCAR_ATTR_SET_CERTOFF(a) (((a) & 0xF) << 8U) 61 #define RCAR_ATTR_SET_ALL(a, b, c) ((uint32_t)(RCAR_ATTR_SET_CALCADDR(a) |\ 62 RCAR_ATTR_SET_ISNOLOAD(b) |\ 63 RCAR_ATTR_SET_CERTOFF(c))) 64 65 #define RCAR_ATTR_GET_CALCADDR(a) ((a) & 0xFU) 66 #define RCAR_ATTR_GET_ISNOLOAD(a) (((a) >> 16) & 0x1U) 67 #define RCAR_ATTR_GET_CERTOFF(a) ((uint32_t)(((a) >> 8) & 0xFU)) 68 69 #define RCAR_MAX_BL3X_IMAGE (8U) 70 #define RCAR_SECTOR6_CERT_OFFSET (0x400U) 71 #define RCAR_SDRAM_certESS (0x43F00000U) 72 #define RCAR_CERT_SIZE (0x800U) 73 #define RCAR_CERT_INFO_SIZE_OFFSET (0x264U) 74 #define RCAR_CERT_INFO_DST_OFFSET (0x154U) 75 #define RCAR_CERT_INFO_SIZE_OFFSET1 (0x364U) 76 #define RCAR_CERT_INFO_DST_OFFSET1 (0x1D4U) 77 #define RCAR_CERT_INFO_SIZE_OFFSET2 (0x464U) 78 #define RCAR_CERT_INFO_DST_OFFSET2 (0x254U) 79 #define RCAR_CERT_LOAD (1U) 80 81 #define RCAR_FLASH_CERT_HEADER RCAR_GET_FLASH_ADR(6U, 0U) 82 #define RCAR_EMMC_CERT_HEADER (0x00030000U) 83 84 #define RCAR_COUNT_LOAD_BL33 (2U) 85 #define RCAR_COUNT_LOAD_BL33X (3U) 86 87 static const plat_rcar_name_offset_t name_offset[] = { 88 {BL31_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(0, 0, 0)}, 89 90 /* BL3-2 is optional in the platform */ 91 {BL32_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(1, 0, 1)}, 92 {BL33_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(2, 0, 2)}, 93 {BL332_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(3, 0, 3)}, 94 {BL333_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(4, 0, 4)}, 95 {BL334_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(5, 0, 5)}, 96 {BL335_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(6, 0, 6)}, 97 {BL336_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(7, 0, 7)}, 98 {BL337_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(8, 0, 8)}, 99 {BL338_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(9, 0, 9)}, 100 }; 101 102 #if TRUSTED_BOARD_BOOT 103 static const plat_rcar_name_offset_t cert_offset[] = { 104 /* Certificates */ 105 {TRUSTED_KEY_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 0)}, 106 {SOC_FW_KEY_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 0)}, 107 {TRUSTED_OS_FW_KEY_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 0)}, 108 {NON_TRUSTED_FW_KEY_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 0)}, 109 {SOC_FW_CONTENT_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 0)}, 110 {TRUSTED_OS_FW_CONTENT_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 1)}, 111 {NON_TRUSTED_FW_CONTENT_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 2)}, 112 {BL332_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 3)}, 113 {BL333_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 4)}, 114 {BL334_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 5)}, 115 {BL335_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 6)}, 116 {BL336_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 7)}, 117 {BL337_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 8)}, 118 {BL338_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 9)}, 119 }; 120 #endif /* TRUSTED_BOARD_BOOT */ 121 122 static file_state_t current_file = { 0 }; 123 124 static uintptr_t rcar_handle, rcar_spec; 125 static uint64_t rcar_image_header[RCAR_MAX_BL3X_IMAGE + 2U] = { 0U }; 126 static uint64_t rcar_image_header_prttn[RCAR_MAX_BL3X_IMAGE + 2U] = { 0U }; 127 static uint64_t rcar_image_number = { 0U }; 128 static uint32_t rcar_cert_load = { 0U }; 129 130 static io_type_t device_type_rcar(void) 131 { 132 return IO_TYPE_FIRMWARE_IMAGE_PACKAGE; 133 } 134 135 int32_t rcar_get_certificate(const int32_t name, uint32_t *cert) 136 { 137 #if TRUSTED_BOARD_BOOT 138 int32_t i; 139 140 for (i = 0; i < ARRAY_SIZE(cert_offset); i++) { 141 if (name != cert_offset[i].name) { 142 continue; 143 } 144 145 *cert = RCAR_CERT_SIZE; 146 *cert *= RCAR_ATTR_GET_CERTOFF(cert_offset[i].attr); 147 *cert += RCAR_SDRAM_certESS; 148 return 0; 149 } 150 #endif 151 return -EINVAL; 152 } 153 154 #define MFISBTSTSR (0xE6260604U) 155 #define MFISBTSTSR_BOOT_PARTITION (0x00000010U) 156 157 static int32_t file_to_offset(const int32_t name, uintptr_t *offset, 158 uint32_t *cert, uint32_t *no_load, 159 uintptr_t *partition) 160 { 161 uint32_t addr; 162 int32_t i; 163 164 for (i = 0; i < ARRAY_SIZE(name_offset); i++) { 165 if (name != name_offset[i].name) { 166 continue; 167 } 168 169 addr = RCAR_ATTR_GET_CALCADDR(name_offset[i].attr); 170 if (rcar_image_number + 2U < addr) { 171 continue; 172 } 173 174 *offset = rcar_image_header[addr]; 175 176 if (mmio_read_32(MFISBTSTSR) & MFISBTSTSR_BOOT_PARTITION) 177 *offset += 0x800000; 178 *cert = RCAR_CERT_SIZE; 179 *cert *= RCAR_ATTR_GET_CERTOFF(name_offset[i].attr); 180 *cert += RCAR_SDRAM_certESS; 181 *no_load = RCAR_ATTR_GET_ISNOLOAD(name_offset[i].attr); 182 *partition = rcar_image_header_prttn[addr]; 183 return IO_SUCCESS; 184 } 185 186 #if TRUSTED_BOARD_BOOT 187 for (i = 0; i < ARRAY_SIZE(cert_offset); i++) { 188 if (name != cert_offset[i].name) { 189 continue; 190 } 191 192 *no_load = RCAR_ATTR_GET_ISNOLOAD(cert_offset[i].attr); 193 *partition = 0U; 194 *offset = 0U; 195 *cert = 0U; 196 return IO_SUCCESS; 197 } 198 #endif 199 return -EINVAL; 200 } 201 202 #define RCAR_BOOT_KEY_CERT_NEW (0xE6300F00U) 203 #define RCAR_CERT_MAGIC_NUM (0xE291F358U) 204 205 void rcar_read_certificate(uint64_t cert, uint32_t *len, uintptr_t *dst) 206 { 207 uint32_t seed, val, info_1, info_2; 208 uintptr_t size, dsth, dstl; 209 210 cert &= 0xFFFFFFFFU; 211 212 seed = mmio_read_32(RCAR_BOOT_KEY_CERT_NEW); 213 val = mmio_read_32(RCAR_BOOT_KEY_CERT_NEW + 0xC); 214 info_1 = (val >> 18) & 0x3U; 215 val = mmio_read_32(cert + 0xC); 216 info_2 = (val >> 21) & 0x3; 217 218 if (seed == RCAR_CERT_MAGIC_NUM) { 219 if (info_1 != 1) { 220 ERROR("BL2: Cert is invalid.\n"); 221 *dst = 0; 222 *len = 0; 223 return; 224 } 225 226 if (info_2 > 2) { 227 ERROR("BL2: Cert is invalid.\n"); 228 *dst = 0; 229 *len = 0; 230 return; 231 } 232 233 switch (info_2) { 234 case 2: 235 size = cert + RCAR_CERT_INFO_SIZE_OFFSET2; 236 dstl = cert + RCAR_CERT_INFO_DST_OFFSET2; 237 break; 238 case 1: 239 size = cert + RCAR_CERT_INFO_SIZE_OFFSET1; 240 dstl = cert + RCAR_CERT_INFO_DST_OFFSET1; 241 break; 242 case 0: 243 size = cert + RCAR_CERT_INFO_SIZE_OFFSET; 244 dstl = cert + RCAR_CERT_INFO_DST_OFFSET; 245 break; 246 } 247 248 *len = mmio_read_32(size) * 4U; 249 dsth = dstl + 4U; 250 *dst = ((uintptr_t) mmio_read_32(dsth) << 32) + 251 ((uintptr_t) mmio_read_32(dstl)); 252 return; 253 } 254 255 size = cert + RCAR_CERT_INFO_SIZE_OFFSET; 256 *len = mmio_read_32(size) * 4U; 257 dstl = cert + RCAR_CERT_INFO_DST_OFFSET; 258 dsth = dstl + 4U; 259 *dst = ((uintptr_t) mmio_read_32(dsth) << 32) + 260 ((uintptr_t) mmio_read_32(dstl)); 261 } 262 263 static int32_t check_load_area(uintptr_t dst, uintptr_t len) 264 { 265 uint32_t legacy = dst + len <= UINT32_MAX - 1 ? 1 : 0; 266 uintptr_t dram_start, dram_end; 267 uintptr_t prot_start, prot_end; 268 int32_t result = IO_SUCCESS; 269 270 dram_start = legacy ? DRAM1_BASE : DRAM_40BIT_BASE; 271 272 dram_end = legacy ? DRAM1_BASE + DRAM1_SIZE : 273 DRAM_40BIT_BASE + DRAM_40BIT_SIZE; 274 275 prot_start = legacy ? DRAM_PROTECTED_BASE : DRAM_40BIT_PROTECTED_BASE; 276 277 prot_end = prot_start + DRAM_PROTECTED_SIZE; 278 279 if (dst < dram_start || dst > dram_end - len) { 280 ERROR("BL2: dst address is on the protected area.\n"); 281 result = IO_FAIL; 282 goto done; 283 } 284 285 /* load image is within SDRAM protected area */ 286 if (dst >= prot_start && dst < prot_end) { 287 ERROR("BL2: dst address is on the protected area.\n"); 288 result = IO_FAIL; 289 } 290 291 if (dst < prot_start && dst > prot_start - len) { 292 ERROR("BL2: loaded data is on the protected area.\n"); 293 result = IO_FAIL; 294 } 295 done: 296 if (result == IO_FAIL) { 297 ERROR("BL2: Out of range : dst=0x%lx len=0x%lx\n", dst, len); 298 } 299 300 return result; 301 } 302 303 static int32_t load_bl33x(void) 304 { 305 static int32_t loaded = IO_NOT_SUPPORTED; 306 uintptr_t dst, partition, handle; 307 uint32_t noload, cert, len, i; 308 uintptr_t offset; 309 int32_t rc; 310 size_t cnt; 311 const int32_t img[] = { 312 BL33_IMAGE_ID, 313 BL332_IMAGE_ID, 314 BL333_IMAGE_ID, 315 BL334_IMAGE_ID, 316 BL335_IMAGE_ID, 317 BL336_IMAGE_ID, 318 BL337_IMAGE_ID, 319 BL338_IMAGE_ID 320 }; 321 322 if (loaded != IO_NOT_SUPPORTED) { 323 return loaded; 324 } 325 326 for (i = 1; i < rcar_image_number; i++) { 327 rc = file_to_offset(img[i], &offset, &cert, &noload, 328 &partition); 329 if (rc != IO_SUCCESS) { 330 WARN("%s: failed to get offset\n", __func__); 331 loaded = IO_FAIL; 332 return loaded; 333 } 334 335 rcar_read_certificate((uint64_t) cert, &len, &dst); 336 ((io_drv_spec_t *) rcar_spec)->partition = partition; 337 338 rc = io_open(rcar_handle, rcar_spec, &handle); 339 if (rc != IO_SUCCESS) { 340 WARN("%s: Failed to open FIP (%i)\n", __func__, rc); 341 loaded = IO_FAIL; 342 return loaded; 343 } 344 345 rc = io_seek(handle, IO_SEEK_SET, offset); 346 if (rc != IO_SUCCESS) { 347 WARN("%s: failed to seek\n", __func__); 348 loaded = IO_FAIL; 349 return loaded; 350 } 351 352 rc = check_load_area(dst, len); 353 if (rc != IO_SUCCESS) { 354 WARN("%s: check load area\n", __func__); 355 loaded = IO_FAIL; 356 return loaded; 357 } 358 359 rc = io_read(handle, dst, len, &cnt); 360 if (rc != IO_SUCCESS) { 361 WARN("%s: failed to read\n", __func__); 362 loaded = IO_FAIL; 363 return loaded; 364 } 365 #if TRUSTED_BOARD_BOOT 366 rc = auth_mod_verify_img(img[i], (void *)dst, len); 367 if (rc != 0) { 368 memset((void *)dst, 0x00, len); 369 loaded = IO_FAIL; 370 return loaded; 371 } 372 #endif 373 io_close(handle); 374 } 375 376 loaded = IO_SUCCESS; 377 378 return loaded; 379 } 380 381 static int32_t rcar_dev_init(io_dev_info_t *dev_info, const uintptr_t name) 382 { 383 static uint64_t header[64] __aligned(FLASH_TRANS_SIZE_UNIT) = {0UL}; 384 uintptr_t handle; 385 ssize_t offset; 386 uint32_t i; 387 int32_t rc; 388 size_t cnt; 389 390 /* Obtain a reference to the image by querying the platform layer */ 391 rc = plat_get_drv_source(name, &rcar_handle, &rcar_spec); 392 if (rc != IO_SUCCESS) { 393 WARN("Failed to obtain reference to img %ld (%i)\n", name, rc); 394 return IO_FAIL; 395 } 396 397 if (rcar_cert_load == RCAR_CERT_LOAD) { 398 return IO_SUCCESS; 399 } 400 401 rc = io_open(rcar_handle, rcar_spec, &handle); 402 if (rc != IO_SUCCESS) { 403 WARN("Failed to access img %ld (%i)\n", name, rc); 404 return IO_FAIL; 405 } 406 407 /* 408 * get start address list 409 * [0] address num 410 * [1] BL33-1 image address 411 * [2] BL33-2 image address 412 * [3] BL33-3 image address 413 * [4] BL33-4 image address 414 * [5] BL33-5 image address 415 * [6] BL33-6 image address 416 * [7] BL33-7 image address 417 * [8] BL33-8 image address 418 */ 419 offset = name == EMMC_DEV_ID ? RCAR_EMMC_CERT_HEADER : 420 RCAR_FLASH_CERT_HEADER; 421 rc = io_seek(handle, IO_SEEK_SET, offset); 422 if (rc != IO_SUCCESS) { 423 WARN("Firmware Image Package header failed to seek\n"); 424 goto error; 425 } 426 #if RCAR_BL2_DCACHE == 1 427 inv_dcache_range((uint64_t) header, sizeof(header)); 428 #endif 429 rc = io_read(handle, (uintptr_t) &header, sizeof(header), &cnt); 430 if (rc != IO_SUCCESS) { 431 WARN("Firmware Image Package header failed to read\n"); 432 goto error; 433 } 434 435 rcar_image_number = header[0]; 436 for (i = 0; i < rcar_image_number + 2; i++) { 437 rcar_image_header[i] = header[i * 2 + 1]; 438 rcar_image_header_prttn[i] = header[i * 2 + 2]; 439 } 440 441 if (rcar_image_number == 0 || rcar_image_number > RCAR_MAX_BL3X_IMAGE) { 442 WARN("Firmware Image Package header check failed.\n"); 443 rc = IO_FAIL; 444 goto error; 445 } 446 447 rc = io_seek(handle, IO_SEEK_SET, offset + RCAR_SECTOR6_CERT_OFFSET); 448 if (rc != IO_SUCCESS) { 449 WARN("Firmware Image Package header failed to seek cert\n"); 450 goto error; 451 } 452 #if RCAR_BL2_DCACHE == 1 453 inv_dcache_range(RCAR_SDRAM_certESS, 454 RCAR_CERT_SIZE * (2 + rcar_image_number)); 455 #endif 456 rc = io_read(handle, RCAR_SDRAM_certESS, 457 RCAR_CERT_SIZE * (2 + rcar_image_number), &cnt); 458 if (rc != IO_SUCCESS) { 459 WARN("cert file read error.\n"); 460 goto error; 461 } 462 463 rcar_cert_load = RCAR_CERT_LOAD; 464 error: 465 466 if (rc != IO_SUCCESS) { 467 rc = IO_FAIL; 468 } 469 470 io_close(handle); 471 472 return rc; 473 474 } 475 476 static int32_t rcar_file_open(io_dev_info_t *info, const uintptr_t file_spec, 477 io_entity_t *entity) 478 { 479 const io_drv_spec_t *spec = (io_drv_spec_t *) file_spec; 480 uintptr_t partition, offset, dst; 481 uint32_t noload, cert, len; 482 int32_t rc; 483 484 /* 485 * Only one file open at a time. We need to track state (ie, file 486 * cursor position). Since the header lives at offset zero, this entry 487 * should never be zero in an active file. 488 * Once the system supports dynamic memory allocation we will allow more 489 * than one open file at a time. 490 */ 491 if (current_file.offset != 0U) { 492 WARN("%s: Only one open file at a time.\n", __func__); 493 return IO_RESOURCES_EXHAUSTED; 494 } 495 496 rc = file_to_offset(spec->offset, &offset, &cert, &noload, &partition); 497 if (rc != IO_SUCCESS) { 498 WARN("Failed to open file name %ld (%i)\n", spec->offset, rc); 499 return IO_FAIL; 500 } 501 502 if (noload != 0U) { 503 current_file.offset = 1; 504 current_file.dst = 0; 505 current_file.size = 1; 506 current_file.position = 0; 507 current_file.no_load = noload; 508 current_file.partition = 0; 509 entity->info = (uintptr_t) ¤t_file; 510 511 return IO_SUCCESS; 512 } 513 514 rcar_read_certificate((uint64_t) cert, &len, &dst); 515 516 /* Baylibre: HACK */ 517 if (spec->offset == BL31_IMAGE_ID && len < RCAR_TRUSTED_SRAM_SIZE) { 518 WARN("%s,%s\n", "r-car ignoring the BL31 size from certificate", 519 "using RCAR_TRUSTED_SRAM_SIZE instead"); 520 len = RCAR_TRUSTED_SRAM_SIZE; 521 } 522 523 current_file.partition = partition; 524 current_file.no_load = noload; 525 current_file.offset = offset; 526 current_file.position = 0; 527 current_file.size = len; 528 current_file.dst = dst; 529 entity->info = (uintptr_t) ¤t_file; 530 531 return IO_SUCCESS; 532 } 533 534 static int32_t rcar_file_len(io_entity_t *entity, size_t *length) 535 { 536 *length = ((file_state_t *) entity->info)->size; 537 538 NOTICE("%s: len: 0x%08lx\n", __func__, *length); 539 540 return IO_SUCCESS; 541 } 542 543 static int32_t rcar_file_read(io_entity_t *entity, uintptr_t buffer, 544 size_t length, size_t *cnt) 545 { 546 file_state_t *fp = (file_state_t *) entity->info; 547 ssize_t offset = fp->offset + fp->position; 548 uintptr_t handle; 549 int32_t rc; 550 551 #ifdef SPD_NONE 552 static uint32_t load_bl33x_counter = 1; 553 #else 554 static uint32_t load_bl33x_counter; 555 #endif 556 if (current_file.no_load != 0U) { 557 *cnt = length; 558 return IO_SUCCESS; 559 } 560 561 ((io_drv_spec_t *) rcar_spec)->partition = fp->partition; 562 563 rc = io_open(rcar_handle, rcar_spec, &handle); 564 if (rc != IO_SUCCESS) { 565 WARN("Failed to open FIP (%i)\n", rc); 566 return IO_FAIL; 567 } 568 569 rc = io_seek(handle, IO_SEEK_SET, offset); 570 if (rc != IO_SUCCESS) { 571 WARN("%s: failed to seek\n", __func__); 572 goto error; 573 } 574 575 if (load_bl33x_counter == RCAR_COUNT_LOAD_BL33) { 576 rc = check_load_area(buffer, length); 577 if (rc != IO_SUCCESS) { 578 WARN("%s: load area err\n", __func__); 579 goto error; 580 } 581 } 582 583 rc = io_read(handle, buffer, length, cnt); 584 if (rc != IO_SUCCESS) { 585 WARN("Failed to read payload (%i)\n", rc); 586 goto error; 587 } 588 589 fp->position += *cnt; 590 io_close(handle); 591 592 load_bl33x_counter += 1; 593 if (load_bl33x_counter == RCAR_COUNT_LOAD_BL33X) { 594 return load_bl33x(); 595 } 596 597 return IO_SUCCESS; 598 error: 599 io_close(handle); 600 return IO_FAIL; 601 } 602 603 static int32_t rcar_file_close(io_entity_t *entity) 604 { 605 if (current_file.offset != 0U) { 606 memset(¤t_file, 0, sizeof(current_file)); 607 } 608 609 entity->info = 0U; 610 611 return IO_SUCCESS; 612 } 613 614 static const io_dev_funcs_t rcar_dev_funcs = { 615 .type = &device_type_rcar, 616 .open = &rcar_file_open, 617 .seek = NULL, 618 .size = &rcar_file_len, 619 .read = &rcar_file_read, 620 .write = NULL, 621 .close = &rcar_file_close, 622 .dev_init = &rcar_dev_init, 623 .dev_close = &rcar_dev_close, 624 }; 625 626 static const io_dev_info_t rcar_dev_info = { 627 .funcs = &rcar_dev_funcs, 628 .info = (uintptr_t) 0 629 }; 630 631 static const io_dev_connector_t rcar_dev_connector = { 632 .dev_open = &rcar_dev_open 633 }; 634 635 static int32_t rcar_dev_open(const uintptr_t dev_spec __attribute__ ((unused)), 636 io_dev_info_t **dev_info) 637 { 638 *dev_info = (io_dev_info_t *) &rcar_dev_info; 639 640 return IO_SUCCESS; 641 } 642 643 static int32_t rcar_dev_close(io_dev_info_t *dev_info) 644 { 645 rcar_handle = 0; 646 rcar_spec = 0; 647 648 return IO_SUCCESS; 649 } 650 651 int32_t rcar_register_io_dev(const io_dev_connector_t **dev_con) 652 { 653 int32_t result; 654 655 result = io_register_device(&rcar_dev_info); 656 if (result == IO_SUCCESS) { 657 *dev_con = &rcar_dev_connector; 658 } 659 660 return result; 661 } 662