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 static int32_t file_to_offset(const int32_t name, uintptr_t *offset, 155 uint32_t *cert, uint32_t *no_load, 156 uintptr_t *partition) 157 { 158 uint32_t addr; 159 int32_t i; 160 161 for (i = 0; i < ARRAY_SIZE(name_offset); i++) { 162 if (name != name_offset[i].name) { 163 continue; 164 } 165 166 addr = RCAR_ATTR_GET_CALCADDR(name_offset[i].attr); 167 if (rcar_image_number + 2U < addr) { 168 continue; 169 } 170 171 *offset = rcar_image_header[addr]; 172 *cert = RCAR_CERT_SIZE; 173 *cert *= RCAR_ATTR_GET_CERTOFF(name_offset[i].attr); 174 *cert += RCAR_SDRAM_certESS; 175 *no_load = RCAR_ATTR_GET_ISNOLOAD(name_offset[i].attr); 176 *partition = rcar_image_header_prttn[addr]; 177 return IO_SUCCESS; 178 } 179 180 #if TRUSTED_BOARD_BOOT 181 for (i = 0; i < ARRAY_SIZE(cert_offset); i++) { 182 if (name != cert_offset[i].name) { 183 continue; 184 } 185 186 *no_load = RCAR_ATTR_GET_ISNOLOAD(cert_offset[i].attr); 187 *partition = 0U; 188 *offset = 0U; 189 *cert = 0U; 190 return IO_SUCCESS; 191 } 192 #endif 193 return -EINVAL; 194 } 195 196 #define RCAR_BOOT_KEY_CERT_NEW (0xE6300F00U) 197 #define RCAR_CERT_MAGIC_NUM (0xE291F358U) 198 199 void rcar_read_certificate(uint64_t cert, uint32_t *len, uintptr_t *dst) 200 { 201 uint32_t seed, val, info_1, info_2; 202 uintptr_t size, dsth, dstl; 203 204 cert &= 0xFFFFFFFFU; 205 206 seed = mmio_read_32(RCAR_BOOT_KEY_CERT_NEW); 207 val = mmio_read_32(RCAR_BOOT_KEY_CERT_NEW + 0xC); 208 info_1 = (val >> 18) & 0x3U; 209 val = mmio_read_32(cert + 0xC); 210 info_2 = (val >> 21) & 0x3; 211 212 if (seed == RCAR_CERT_MAGIC_NUM) { 213 if (info_1 != 1) { 214 ERROR("BL2: Cert is invalid.\n"); 215 *dst = 0; 216 *len = 0; 217 return; 218 } 219 220 if (info_2 > 2) { 221 ERROR("BL2: Cert is invalid.\n"); 222 *dst = 0; 223 *len = 0; 224 return; 225 } 226 227 switch (info_2) { 228 case 2: 229 size = cert + RCAR_CERT_INFO_SIZE_OFFSET2; 230 dstl = cert + RCAR_CERT_INFO_DST_OFFSET2; 231 break; 232 case 1: 233 size = cert + RCAR_CERT_INFO_SIZE_OFFSET1; 234 dstl = cert + RCAR_CERT_INFO_DST_OFFSET1; 235 break; 236 case 0: 237 size = cert + RCAR_CERT_INFO_SIZE_OFFSET; 238 dstl = cert + RCAR_CERT_INFO_DST_OFFSET; 239 break; 240 } 241 242 *len = mmio_read_32(size) * 4U; 243 dsth = dstl + 4U; 244 *dst = ((uintptr_t) mmio_read_32(dsth) << 32) + 245 ((uintptr_t) mmio_read_32(dstl)); 246 return; 247 } 248 249 size = cert + RCAR_CERT_INFO_SIZE_OFFSET; 250 *len = mmio_read_32(size) * 4U; 251 dstl = cert + RCAR_CERT_INFO_DST_OFFSET; 252 dsth = dstl + 4U; 253 *dst = ((uintptr_t) mmio_read_32(dsth) << 32) + 254 ((uintptr_t) mmio_read_32(dstl)); 255 } 256 257 static int32_t check_load_area(uintptr_t dst, uintptr_t len) 258 { 259 uint32_t legacy = dst + len <= UINT32_MAX - 1 ? 1 : 0; 260 uintptr_t dram_start, dram_end; 261 uintptr_t prot_start, prot_end; 262 int32_t result = IO_SUCCESS; 263 264 dram_start = legacy ? DRAM1_BASE : DRAM_40BIT_BASE; 265 266 dram_end = legacy ? DRAM1_BASE + DRAM1_SIZE : 267 DRAM_40BIT_BASE + DRAM_40BIT_SIZE; 268 269 prot_start = legacy ? DRAM_PROTECTED_BASE : DRAM_40BIT_PROTECTED_BASE; 270 271 prot_end = prot_start + DRAM_PROTECTED_SIZE; 272 273 if (dst < dram_start || dst > dram_end - len) { 274 ERROR("BL2: dst address is on the protected area.\n"); 275 result = IO_FAIL; 276 goto done; 277 } 278 279 /* load image is within SDRAM protected area */ 280 if (dst >= prot_start && dst < prot_end) { 281 ERROR("BL2: dst address is on the protected area.\n"); 282 result = IO_FAIL; 283 } 284 285 if (dst < prot_start && dst > prot_start - len) { 286 ERROR("BL2: loaded data is on the protected area.\n"); 287 result = IO_FAIL; 288 } 289 done: 290 if (result == IO_FAIL) { 291 ERROR("BL2: Out of range : dst=0x%lx len=0x%lx\n", dst, len); 292 } 293 294 return result; 295 } 296 297 static int32_t load_bl33x(void) 298 { 299 static int32_t loaded = IO_NOT_SUPPORTED; 300 uintptr_t dst, partition, handle; 301 uint32_t noload, cert, len, i; 302 uintptr_t offset; 303 int32_t rc; 304 size_t cnt; 305 const int32_t img[] = { 306 BL33_IMAGE_ID, 307 BL332_IMAGE_ID, 308 BL333_IMAGE_ID, 309 BL334_IMAGE_ID, 310 BL335_IMAGE_ID, 311 BL336_IMAGE_ID, 312 BL337_IMAGE_ID, 313 BL338_IMAGE_ID 314 }; 315 316 if (loaded != IO_NOT_SUPPORTED) { 317 return loaded; 318 } 319 320 for (i = 1; i < rcar_image_number; i++) { 321 rc = file_to_offset(img[i], &offset, &cert, &noload, 322 &partition); 323 if (rc != IO_SUCCESS) { 324 WARN("%s: failed to get offset\n", __func__); 325 loaded = IO_FAIL; 326 return loaded; 327 } 328 329 rcar_read_certificate((uint64_t) cert, &len, &dst); 330 ((io_drv_spec_t *) rcar_spec)->partition = partition; 331 332 rc = io_open(rcar_handle, rcar_spec, &handle); 333 if (rc != IO_SUCCESS) { 334 WARN("%s: Failed to open FIP (%i)\n", __func__, rc); 335 loaded = IO_FAIL; 336 return loaded; 337 } 338 339 rc = io_seek(handle, IO_SEEK_SET, offset); 340 if (rc != IO_SUCCESS) { 341 WARN("%s: failed to seek\n", __func__); 342 loaded = IO_FAIL; 343 return loaded; 344 } 345 346 rc = check_load_area(dst, len); 347 if (rc != IO_SUCCESS) { 348 WARN("%s: check load area\n", __func__); 349 loaded = IO_FAIL; 350 return loaded; 351 } 352 353 rc = io_read(handle, dst, len, &cnt); 354 if (rc != IO_SUCCESS) { 355 WARN("%s: failed to read\n", __func__); 356 loaded = IO_FAIL; 357 return loaded; 358 } 359 #if TRUSTED_BOARD_BOOT 360 rc = auth_mod_verify_img(img[i], (void *)dst, len); 361 if (rc != 0) { 362 memset((void *)dst, 0x00, len); 363 loaded = IO_FAIL; 364 return loaded; 365 } 366 #endif 367 io_close(handle); 368 } 369 370 loaded = IO_SUCCESS; 371 372 return loaded; 373 } 374 375 static int32_t rcar_dev_init(io_dev_info_t *dev_info, const uintptr_t name) 376 { 377 uint64_t header[64] __aligned(FLASH_TRANS_SIZE_UNIT) = {0UL}; 378 uintptr_t handle; 379 ssize_t offset; 380 uint32_t i; 381 int32_t rc; 382 size_t cnt; 383 384 /* Obtain a reference to the image by querying the platform layer */ 385 rc = plat_get_drv_source(name, &rcar_handle, &rcar_spec); 386 if (rc != IO_SUCCESS) { 387 WARN("Failed to obtain reference to img %ld (%i)\n", name, rc); 388 return IO_FAIL; 389 } 390 391 if (rcar_cert_load == RCAR_CERT_LOAD) { 392 return IO_SUCCESS; 393 } 394 395 rc = io_open(rcar_handle, rcar_spec, &handle); 396 if (rc != IO_SUCCESS) { 397 WARN("Failed to access img %ld (%i)\n", name, rc); 398 return IO_FAIL; 399 } 400 401 /* 402 * get start address list 403 * [0] address num 404 * [1] BL33-1 image address 405 * [2] BL33-2 image address 406 * [3] BL33-3 image address 407 * [4] BL33-4 image address 408 * [5] BL33-5 image address 409 * [6] BL33-6 image address 410 * [7] BL33-7 image address 411 * [8] BL33-8 image address 412 */ 413 offset = name == EMMC_DEV_ID ? RCAR_EMMC_CERT_HEADER : 414 RCAR_FLASH_CERT_HEADER; 415 rc = io_seek(handle, IO_SEEK_SET, offset); 416 if (rc != IO_SUCCESS) { 417 WARN("Firmware Image Package header failed to seek\n"); 418 goto error; 419 } 420 #if RCAR_BL2_DCACHE == 1 421 inv_dcache_range((uint64_t) header, sizeof(header)); 422 #endif 423 rc = io_read(handle, (uintptr_t) &header, sizeof(header), &cnt); 424 if (rc != IO_SUCCESS) { 425 WARN("Firmware Image Package header failed to read\n"); 426 goto error; 427 } 428 429 rcar_image_number = header[0]; 430 for (i = 0; i < rcar_image_number + 2; i++) { 431 rcar_image_header[i] = header[i * 2 + 1]; 432 rcar_image_header_prttn[i] = header[i * 2 + 2]; 433 } 434 435 if (rcar_image_number == 0 || rcar_image_number > RCAR_MAX_BL3X_IMAGE) { 436 WARN("Firmware Image Package header check failed.\n"); 437 goto error; 438 } 439 440 rc = io_seek(handle, IO_SEEK_SET, offset + RCAR_SECTOR6_CERT_OFFSET); 441 if (rc != IO_SUCCESS) { 442 WARN("Firmware Image Package header failed to seek cert\n"); 443 goto error; 444 } 445 #if RCAR_BL2_DCACHE == 1 446 inv_dcache_range(RCAR_SDRAM_certESS, 447 RCAR_CERT_SIZE * (2 + rcar_image_number)); 448 #endif 449 rc = io_read(handle, RCAR_SDRAM_certESS, 450 RCAR_CERT_SIZE * (2 + rcar_image_number), &cnt); 451 if (rc != IO_SUCCESS) { 452 WARN("cert file read error.\n"); 453 goto error; 454 } 455 456 rcar_cert_load = RCAR_CERT_LOAD; 457 error: 458 459 if (rc != IO_SUCCESS) { 460 rc = IO_FAIL; 461 } 462 463 io_close(handle); 464 465 return rc; 466 467 } 468 469 static int32_t rcar_file_open(io_dev_info_t *info, const uintptr_t file_spec, 470 io_entity_t *entity) 471 { 472 const io_drv_spec_t *spec = (io_drv_spec_t *) file_spec; 473 uintptr_t partition, offset, dst; 474 uint32_t noload, cert, len; 475 int32_t rc; 476 477 /* 478 * Only one file open at a time. We need to track state (ie, file 479 * cursor position). Since the header lives at offset zero, this entry 480 * should never be zero in an active file. 481 * Once the system supports dynamic memory allocation we will allow more 482 * than one open file at a time. 483 */ 484 if (current_file.offset != 0U) { 485 WARN("%s: Only one open file at a time.\n", __func__); 486 return IO_RESOURCES_EXHAUSTED; 487 } 488 489 rc = file_to_offset(spec->offset, &offset, &cert, &noload, &partition); 490 if (rc != IO_SUCCESS) { 491 WARN("Failed to open file name %ld (%i)\n", spec->offset, rc); 492 return IO_FAIL; 493 } 494 495 if (noload != 0U) { 496 current_file.offset = 1; 497 current_file.dst = 0; 498 current_file.size = 1; 499 current_file.position = 0; 500 current_file.no_load = noload; 501 current_file.partition = 0; 502 entity->info = (uintptr_t) ¤t_file; 503 504 return IO_SUCCESS; 505 } 506 507 rcar_read_certificate((uint64_t) cert, &len, &dst); 508 509 /* Baylibre: HACK */ 510 if (spec->offset == BL31_IMAGE_ID && len < RCAR_TRUSTED_SRAM_SIZE) { 511 WARN("%s,%s\n", "r-car ignoring the BL31 size from certificate", 512 "using RCAR_TRUSTED_SRAM_SIZE instead"); 513 len = RCAR_TRUSTED_SRAM_SIZE; 514 } 515 516 current_file.partition = partition; 517 current_file.no_load = noload; 518 current_file.offset = offset; 519 current_file.position = 0; 520 current_file.size = len; 521 current_file.dst = dst; 522 entity->info = (uintptr_t) ¤t_file; 523 524 return IO_SUCCESS; 525 } 526 527 static int32_t rcar_file_len(io_entity_t *entity, size_t *length) 528 { 529 *length = ((file_state_t *) entity->info)->size; 530 531 NOTICE("%s: len: 0x%08lx\n", __func__, *length); 532 533 return IO_SUCCESS; 534 } 535 536 static int32_t rcar_file_read(io_entity_t *entity, uintptr_t buffer, 537 size_t length, size_t *cnt) 538 { 539 file_state_t *fp = (file_state_t *) entity->info; 540 ssize_t offset = fp->offset + fp->position; 541 uintptr_t handle; 542 int32_t rc; 543 544 #ifdef SPD_NONE 545 static uint32_t load_bl33x_counter = 1; 546 #else 547 static uint32_t load_bl33x_counter; 548 #endif 549 if (current_file.no_load != 0U) { 550 *cnt = length; 551 return IO_SUCCESS; 552 } 553 554 ((io_drv_spec_t *) rcar_spec)->partition = fp->partition; 555 556 rc = io_open(rcar_handle, rcar_spec, &handle); 557 if (rc != IO_SUCCESS) { 558 WARN("Failed to open FIP (%i)\n", rc); 559 return IO_FAIL; 560 } 561 562 rc = io_seek(handle, IO_SEEK_SET, offset); 563 if (rc != IO_SUCCESS) { 564 WARN("%s: failed to seek\n", __func__); 565 goto error; 566 } 567 568 if (load_bl33x_counter == RCAR_COUNT_LOAD_BL33) { 569 rc = check_load_area(buffer, length); 570 if (rc != IO_SUCCESS) { 571 WARN("%s: load area err\n", __func__); 572 goto error; 573 } 574 } 575 576 rc = io_read(handle, buffer, length, cnt); 577 if (rc != IO_SUCCESS) { 578 WARN("Failed to read payload (%i)\n", rc); 579 goto error; 580 } 581 582 fp->position += *cnt; 583 io_close(handle); 584 585 load_bl33x_counter += 1; 586 if (load_bl33x_counter == RCAR_COUNT_LOAD_BL33X) { 587 return load_bl33x(); 588 } 589 590 return IO_SUCCESS; 591 error: 592 io_close(handle); 593 return IO_FAIL; 594 } 595 596 static int32_t rcar_file_close(io_entity_t *entity) 597 { 598 if (current_file.offset != 0U) { 599 memset(¤t_file, 0, sizeof(current_file)); 600 } 601 602 entity->info = 0U; 603 604 return IO_SUCCESS; 605 } 606 607 static const io_dev_funcs_t rcar_dev_funcs = { 608 .type = &device_type_rcar, 609 .open = &rcar_file_open, 610 .seek = NULL, 611 .size = &rcar_file_len, 612 .read = &rcar_file_read, 613 .write = NULL, 614 .close = &rcar_file_close, 615 .dev_init = &rcar_dev_init, 616 .dev_close = &rcar_dev_close, 617 }; 618 619 static const io_dev_info_t rcar_dev_info = { 620 .funcs = &rcar_dev_funcs, 621 .info = (uintptr_t) 0 622 }; 623 624 static const io_dev_connector_t rcar_dev_connector = { 625 .dev_open = &rcar_dev_open 626 }; 627 628 static int32_t rcar_dev_open(const uintptr_t dev_spec __attribute__ ((unused)), 629 io_dev_info_t **dev_info) 630 { 631 *dev_info = (io_dev_info_t *) &rcar_dev_info; 632 633 return IO_SUCCESS; 634 } 635 636 static int32_t rcar_dev_close(io_dev_info_t *dev_info) 637 { 638 rcar_handle = 0; 639 rcar_spec = 0; 640 641 return IO_SUCCESS; 642 } 643 644 int32_t rcar_register_io_dev(const io_dev_connector_t **dev_con) 645 { 646 int32_t result; 647 648 result = io_register_device(&rcar_dev_info); 649 if (result == IO_SUCCESS) { 650 *dev_con = &rcar_dev_connector; 651 } 652 653 return result; 654 } 655