1 /* 2 * (C) Copyright 2000-2009 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 /* 9 * Boot support 10 */ 11 #include <common.h> 12 #include <bootm.h> 13 #include <command.h> 14 #include <environment.h> 15 #include <errno.h> 16 #include <image.h> 17 #include <lmb.h> 18 #include <malloc.h> 19 #include <mapmem.h> 20 #include <nand.h> 21 #include <asm/byteorder.h> 22 #include <linux/compiler.h> 23 #include <linux/ctype.h> 24 #include <linux/err.h> 25 #include <u-boot/zlib.h> 26 27 DECLARE_GLOBAL_DATA_PTR; 28 29 #if defined(CONFIG_CMD_IMI) 30 static int image_info(unsigned long addr); 31 #endif 32 33 #if defined(CONFIG_CMD_IMLS) 34 #include <flash.h> 35 #include <mtd/cfi_flash.h> 36 extern flash_info_t flash_info[]; /* info for FLASH chips */ 37 #endif 38 39 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND) 40 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); 41 #endif 42 43 bootm_headers_t images; /* pointers to os/initrd/fdt images */ 44 45 /* we overload the cmd field with our state machine info instead of a 46 * function pointer */ 47 static cmd_tbl_t cmd_bootm_sub[] = { 48 U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""), 49 U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""), 50 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH 51 U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""), 52 #endif 53 #ifdef CONFIG_OF_LIBFDT 54 U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""), 55 #endif 56 U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""), 57 U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""), 58 U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""), 59 U_BOOT_CMD_MKENT(fake, 0, 1, (void *)BOOTM_STATE_OS_FAKE_GO, "", ""), 60 U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""), 61 }; 62 63 static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc, 64 char * const argv[]) 65 { 66 int ret = 0; 67 long state; 68 cmd_tbl_t *c; 69 70 c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub)); 71 argc--; argv++; 72 73 if (c) { 74 state = (long)c->cmd; 75 if (state == BOOTM_STATE_START) 76 state |= BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER; 77 } else { 78 /* Unrecognized command */ 79 return CMD_RET_USAGE; 80 } 81 82 if (((state & BOOTM_STATE_START) != BOOTM_STATE_START) && 83 images.state >= state) { 84 printf("Trying to execute a command out of order\n"); 85 return CMD_RET_USAGE; 86 } 87 88 ret = do_bootm_states(cmdtp, flag, argc, argv, state, &images, 0); 89 90 return ret; 91 } 92 93 /*******************************************************************/ 94 /* bootm - boot application image from image in memory */ 95 /*******************************************************************/ 96 97 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 98 { 99 #ifdef CONFIG_NEEDS_MANUAL_RELOC 100 static int relocated = 0; 101 102 if (!relocated) { 103 int i; 104 105 /* relocate names of sub-command table */ 106 for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++) 107 cmd_bootm_sub[i].name += gd->reloc_off; 108 109 relocated = 1; 110 } 111 #endif 112 113 /* determine if we have a sub command */ 114 argc--; argv++; 115 if (argc > 0) { 116 char *endp; 117 118 simple_strtoul(argv[0], &endp, 16); 119 /* endp pointing to NULL means that argv[0] was just a 120 * valid number, pass it along to the normal bootm processing 121 * 122 * If endp is ':' or '#' assume a FIT identifier so pass 123 * along for normal processing. 124 * 125 * Right now we assume the first arg should never be '-' 126 */ 127 if ((*endp != 0) && (*endp != ':') && (*endp != '#')) 128 return do_bootm_subcommand(cmdtp, flag, argc, argv); 129 } 130 131 return do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START | 132 BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER | 133 BOOTM_STATE_LOADOS | 134 #if defined(CONFIG_PPC) || defined(CONFIG_MIPS) 135 BOOTM_STATE_OS_CMDLINE | 136 #endif 137 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO | 138 BOOTM_STATE_OS_GO, &images, 1); 139 } 140 141 int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd) 142 { 143 const char *ep = getenv("autostart"); 144 145 if (ep && !strcmp(ep, "yes")) { 146 char *local_args[2]; 147 local_args[0] = (char *)cmd; 148 local_args[1] = NULL; 149 printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr); 150 return do_bootm(cmdtp, 0, 1, local_args); 151 } 152 153 return 0; 154 } 155 156 #ifdef CONFIG_SYS_LONGHELP 157 static char bootm_help_text[] = 158 "[addr [arg ...]]\n - boot application image stored in memory\n" 159 "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n" 160 "\t'arg' can be the address of an initrd image\n" 161 #if defined(CONFIG_OF_LIBFDT) 162 "\tWhen booting a Linux kernel which requires a flat device-tree\n" 163 "\ta third argument is required which is the address of the\n" 164 "\tdevice-tree blob. To boot that kernel without an initrd image,\n" 165 "\tuse a '-' for the second argument. If you do not pass a third\n" 166 "\ta bd_info struct will be passed instead\n" 167 #endif 168 #if defined(CONFIG_FIT) 169 "\t\nFor the new multi component uImage format (FIT) addresses\n" 170 "\tmust be extened to include component or configuration unit name:\n" 171 "\taddr:<subimg_uname> - direct component image specification\n" 172 "\taddr#<conf_uname> - configuration specification\n" 173 "\tUse iminfo command to get the list of existing component\n" 174 "\timages and configurations.\n" 175 #endif 176 "\nSub-commands to do part of the bootm sequence. The sub-commands " 177 "must be\n" 178 "issued in the order below (it's ok to not issue all sub-commands):\n" 179 "\tstart [addr [arg ...]]\n" 180 "\tloados - load OS image\n" 181 #if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH) 182 "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n" 183 #endif 184 #if defined(CONFIG_OF_LIBFDT) 185 "\tfdt - relocate flat device tree\n" 186 #endif 187 "\tcmdline - OS specific command line processing/setup\n" 188 "\tbdt - OS specific bd_t processing\n" 189 "\tprep - OS specific prep before relocation or go\n" 190 #if defined(CONFIG_TRACE) 191 "\tfake - OS specific fake start without go\n" 192 #endif 193 "\tgo - start OS"; 194 #endif 195 196 U_BOOT_CMD( 197 bootm, CONFIG_SYS_MAXARGS, 1, do_bootm, 198 "boot application image from memory", bootm_help_text 199 ); 200 201 /*******************************************************************/ 202 /* bootd - boot default image */ 203 /*******************************************************************/ 204 #if defined(CONFIG_CMD_BOOTD) 205 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 206 { 207 return run_command(getenv("bootcmd"), flag); 208 } 209 210 U_BOOT_CMD( 211 boot, 1, 1, do_bootd, 212 "boot default, i.e., run 'bootcmd'", 213 "" 214 ); 215 216 /* keep old command name "bootd" for backward compatibility */ 217 U_BOOT_CMD( 218 bootd, 1, 1, do_bootd, 219 "boot default, i.e., run 'bootcmd'", 220 "" 221 ); 222 223 #endif 224 225 226 /*******************************************************************/ 227 /* iminfo - print header info for a requested image */ 228 /*******************************************************************/ 229 #if defined(CONFIG_CMD_IMI) 230 static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 231 { 232 int arg; 233 ulong addr; 234 int rcode = 0; 235 236 if (argc < 2) { 237 return image_info(load_addr); 238 } 239 240 for (arg = 1; arg < argc; ++arg) { 241 addr = simple_strtoul(argv[arg], NULL, 16); 242 if (image_info(addr) != 0) 243 rcode = 1; 244 } 245 return rcode; 246 } 247 248 static int image_info(ulong addr) 249 { 250 void *hdr = (void *)addr; 251 252 printf("\n## Checking Image at %08lx ...\n", addr); 253 254 switch (genimg_get_format(hdr)) { 255 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 256 case IMAGE_FORMAT_LEGACY: 257 puts(" Legacy image found\n"); 258 if (!image_check_magic(hdr)) { 259 puts(" Bad Magic Number\n"); 260 return 1; 261 } 262 263 if (!image_check_hcrc(hdr)) { 264 puts(" Bad Header Checksum\n"); 265 return 1; 266 } 267 268 image_print_contents(hdr); 269 270 puts(" Verifying Checksum ... "); 271 if (!image_check_dcrc(hdr)) { 272 puts(" Bad Data CRC\n"); 273 return 1; 274 } 275 puts("OK\n"); 276 return 0; 277 #endif 278 #if defined(CONFIG_FIT) 279 case IMAGE_FORMAT_FIT: 280 puts(" FIT image found\n"); 281 282 if (!fit_check_format(hdr)) { 283 puts("Bad FIT image format!\n"); 284 return 1; 285 } 286 287 fit_print_contents(hdr); 288 289 if (!fit_all_image_verify(hdr)) { 290 puts("Bad hash in FIT image!\n"); 291 return 1; 292 } 293 294 return 0; 295 #endif 296 default: 297 puts("Unknown image format!\n"); 298 break; 299 } 300 301 return 1; 302 } 303 304 U_BOOT_CMD( 305 iminfo, CONFIG_SYS_MAXARGS, 1, do_iminfo, 306 "print header information for application image", 307 "addr [addr ...]\n" 308 " - print header information for application image starting at\n" 309 " address 'addr' in memory; this includes verification of the\n" 310 " image contents (magic number, header and payload checksums)" 311 ); 312 #endif 313 314 315 /*******************************************************************/ 316 /* imls - list all images found in flash */ 317 /*******************************************************************/ 318 #if defined(CONFIG_CMD_IMLS) 319 static int do_imls_nor(void) 320 { 321 flash_info_t *info; 322 int i, j; 323 void *hdr; 324 325 for (i = 0, info = &flash_info[0]; 326 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) { 327 328 if (info->flash_id == FLASH_UNKNOWN) 329 goto next_bank; 330 for (j = 0; j < info->sector_count; ++j) { 331 332 hdr = (void *)info->start[j]; 333 if (!hdr) 334 goto next_sector; 335 336 switch (genimg_get_format(hdr)) { 337 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 338 case IMAGE_FORMAT_LEGACY: 339 if (!image_check_hcrc(hdr)) 340 goto next_sector; 341 342 printf("Legacy Image at %08lX:\n", (ulong)hdr); 343 image_print_contents(hdr); 344 345 puts(" Verifying Checksum ... "); 346 if (!image_check_dcrc(hdr)) { 347 puts("Bad Data CRC\n"); 348 } else { 349 puts("OK\n"); 350 } 351 break; 352 #endif 353 #if defined(CONFIG_FIT) 354 case IMAGE_FORMAT_FIT: 355 if (!fit_check_format(hdr)) 356 goto next_sector; 357 358 printf("FIT Image at %08lX:\n", (ulong)hdr); 359 fit_print_contents(hdr); 360 break; 361 #endif 362 default: 363 goto next_sector; 364 } 365 366 next_sector: ; 367 } 368 next_bank: ; 369 } 370 return 0; 371 } 372 #endif 373 374 #if defined(CONFIG_CMD_IMLS_NAND) 375 static int nand_imls_legacyimage(struct mtd_info *mtd, int nand_dev, 376 loff_t off, size_t len) 377 { 378 void *imgdata; 379 int ret; 380 381 imgdata = malloc(len); 382 if (!imgdata) { 383 printf("May be a Legacy Image at NAND device %d offset %08llX:\n", 384 nand_dev, off); 385 printf(" Low memory(cannot allocate memory for image)\n"); 386 return -ENOMEM; 387 } 388 389 ret = nand_read_skip_bad(mtd, off, &len, imgdata); 390 if (ret < 0 && ret != -EUCLEAN) { 391 free(imgdata); 392 return ret; 393 } 394 395 if (!image_check_hcrc(imgdata)) { 396 free(imgdata); 397 return 0; 398 } 399 400 printf("Legacy Image at NAND device %d offset %08llX:\n", 401 nand_dev, off); 402 image_print_contents(imgdata); 403 404 puts(" Verifying Checksum ... "); 405 if (!image_check_dcrc(imgdata)) 406 puts("Bad Data CRC\n"); 407 else 408 puts("OK\n"); 409 410 free(imgdata); 411 412 return 0; 413 } 414 415 static int nand_imls_fitimage(struct mtd_info *mtd, int nand_dev, loff_t off, 416 size_t len) 417 { 418 void *imgdata; 419 int ret; 420 421 imgdata = malloc(len); 422 if (!imgdata) { 423 printf("May be a FIT Image at NAND device %d offset %08llX:\n", 424 nand_dev, off); 425 printf(" Low memory(cannot allocate memory for image)\n"); 426 return -ENOMEM; 427 } 428 429 ret = nand_read_skip_bad(mtd, off, &len, imgdata); 430 if (ret < 0 && ret != -EUCLEAN) { 431 free(imgdata); 432 return ret; 433 } 434 435 if (!fit_check_format(imgdata)) { 436 free(imgdata); 437 return 0; 438 } 439 440 printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off); 441 442 fit_print_contents(imgdata); 443 free(imgdata); 444 445 return 0; 446 } 447 448 static int do_imls_nand(void) 449 { 450 struct mtd_info *mtd; 451 int nand_dev = nand_curr_device; 452 size_t len; 453 loff_t off; 454 u32 buffer[16]; 455 456 if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) { 457 puts("\nNo NAND devices available\n"); 458 return -ENODEV; 459 } 460 461 printf("\n"); 462 463 for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) { 464 mtd = nand_info[nand_dev]; 465 if (!mtd->name || !mtd->size) 466 continue; 467 468 for (off = 0; off < mtd->size; off += mtd->erasesize) { 469 const image_header_t *header; 470 int ret; 471 472 if (nand_block_isbad(mtd, off)) 473 continue; 474 475 len = sizeof(buffer); 476 477 ret = nand_read(mtd, off, &len, (u8 *)buffer); 478 if (ret < 0 && ret != -EUCLEAN) { 479 printf("NAND read error %d at offset %08llX\n", 480 ret, off); 481 continue; 482 } 483 484 switch (genimg_get_format(buffer)) { 485 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 486 case IMAGE_FORMAT_LEGACY: 487 header = (const image_header_t *)buffer; 488 489 len = image_get_image_size(header); 490 nand_imls_legacyimage(mtd, nand_dev, off, len); 491 break; 492 #endif 493 #if defined(CONFIG_FIT) 494 case IMAGE_FORMAT_FIT: 495 len = fit_get_size(buffer); 496 nand_imls_fitimage(mtd, nand_dev, off, len); 497 break; 498 #endif 499 } 500 } 501 } 502 503 return 0; 504 } 505 #endif 506 507 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND) 508 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 509 { 510 int ret_nor = 0, ret_nand = 0; 511 512 #if defined(CONFIG_CMD_IMLS) 513 ret_nor = do_imls_nor(); 514 #endif 515 516 #if defined(CONFIG_CMD_IMLS_NAND) 517 ret_nand = do_imls_nand(); 518 #endif 519 520 if (ret_nor) 521 return ret_nor; 522 523 if (ret_nand) 524 return ret_nand; 525 526 return (0); 527 } 528 529 U_BOOT_CMD( 530 imls, 1, 1, do_imls, 531 "list all images found in flash", 532 "\n" 533 " - Prints information about all images found at sector/block\n" 534 " boundaries in nor/nand flash." 535 ); 536 #endif 537 538 #ifdef CONFIG_CMD_BOOTZ 539 540 int __weak bootz_setup(ulong image, ulong *start, ulong *end) 541 { 542 /* Please define bootz_setup() for your platform */ 543 544 puts("Your platform's zImage format isn't supported yet!\n"); 545 return -1; 546 } 547 548 /* 549 * zImage booting support 550 */ 551 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc, 552 char * const argv[], bootm_headers_t *images) 553 { 554 int ret; 555 ulong zi_start, zi_end; 556 557 ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START, 558 images, 1); 559 560 /* Setup Linux kernel zImage entry point */ 561 if (!argc) { 562 images->ep = load_addr; 563 debug("* kernel: default image load address = 0x%08lx\n", 564 load_addr); 565 } else { 566 images->ep = simple_strtoul(argv[0], NULL, 16); 567 debug("* kernel: cmdline image address = 0x%08lx\n", 568 images->ep); 569 } 570 571 ret = bootz_setup(images->ep, &zi_start, &zi_end); 572 if (ret != 0) 573 return 1; 574 575 lmb_reserve(&images->lmb, images->ep, zi_end - zi_start); 576 577 /* 578 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not 579 * have a header that provide this informaiton. 580 */ 581 if (bootm_find_images(flag, argc, argv)) 582 return 1; 583 584 return 0; 585 } 586 587 int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 588 { 589 int ret; 590 591 /* Consume 'bootz' */ 592 argc--; argv++; 593 594 if (bootz_start(cmdtp, flag, argc, argv, &images)) 595 return 1; 596 597 /* 598 * We are doing the BOOTM_STATE_LOADOS state ourselves, so must 599 * disable interrupts ourselves 600 */ 601 bootm_disable_interrupts(); 602 603 images.os.os = IH_OS_LINUX; 604 ret = do_bootm_states(cmdtp, flag, argc, argv, 605 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO | 606 BOOTM_STATE_OS_GO, 607 &images, 1); 608 609 return ret; 610 } 611 612 #ifdef CONFIG_SYS_LONGHELP 613 static char bootz_help_text[] = 614 "[addr [initrd[:size]] [fdt]]\n" 615 " - boot Linux zImage stored in memory\n" 616 "\tThe argument 'initrd' is optional and specifies the address\n" 617 "\tof the initrd in memory. The optional argument ':size' allows\n" 618 "\tspecifying the size of RAW initrd.\n" 619 #if defined(CONFIG_OF_LIBFDT) 620 "\tWhen booting a Linux kernel which requires a flat device-tree\n" 621 "\ta third argument is required which is the address of the\n" 622 "\tdevice-tree blob. To boot that kernel without an initrd image,\n" 623 "\tuse a '-' for the second argument. If you do not pass a third\n" 624 "\ta bd_info struct will be passed instead\n" 625 #endif 626 ""; 627 #endif 628 629 U_BOOT_CMD( 630 bootz, CONFIG_SYS_MAXARGS, 1, do_bootz, 631 "boot Linux zImage image from memory", bootz_help_text 632 ); 633 #endif /* CONFIG_CMD_BOOTZ */ 634 635 #ifdef CONFIG_CMD_BOOTI 636 /* See Documentation/arm64/booting.txt in the Linux kernel */ 637 struct Image_header { 638 uint32_t code0; /* Executable code */ 639 uint32_t code1; /* Executable code */ 640 uint64_t text_offset; /* Image load offset, LE */ 641 uint64_t image_size; /* Effective Image size, LE */ 642 uint64_t res1; /* reserved */ 643 uint64_t res2; /* reserved */ 644 uint64_t res3; /* reserved */ 645 uint64_t res4; /* reserved */ 646 uint32_t magic; /* Magic number */ 647 uint32_t res5; 648 }; 649 650 #define LINUX_ARM64_IMAGE_MAGIC 0x644d5241 651 652 static int booti_setup(bootm_headers_t *images) 653 { 654 struct Image_header *ih; 655 uint64_t dst; 656 uint64_t image_size; 657 658 ih = (struct Image_header *)map_sysmem(images->ep, 0); 659 660 if (ih->magic != le32_to_cpu(LINUX_ARM64_IMAGE_MAGIC)) { 661 puts("Bad Linux ARM64 Image magic!\n"); 662 return 1; 663 } 664 665 if (ih->image_size == 0) { 666 puts("Image lacks image_size field, assuming 16MiB\n"); 667 image_size = 16 << 20; 668 } else { 669 image_size = le64_to_cpu(ih->image_size); 670 } 671 672 /* 673 * If we are not at the correct run-time location, set the new 674 * correct location and then move the image there. 675 */ 676 dst = gd->bd->bi_dram[0].start + le64_to_cpu(ih->text_offset); 677 678 unmap_sysmem(ih); 679 680 if (images->ep != dst) { 681 void *src; 682 683 debug("Moving Image from 0x%lx to 0x%llx\n", images->ep, dst); 684 685 src = (void *)images->ep; 686 images->ep = dst; 687 memmove((void *)dst, src, image_size); 688 } 689 690 return 0; 691 } 692 693 /* 694 * Image booting support 695 */ 696 static int booti_start(cmd_tbl_t *cmdtp, int flag, int argc, 697 char * const argv[], bootm_headers_t *images) 698 { 699 int ret; 700 struct Image_header *ih; 701 702 ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START, 703 images, 1); 704 705 /* Setup Linux kernel Image entry point */ 706 if (!argc) { 707 images->ep = load_addr; 708 debug("* kernel: default image load address = 0x%08lx\n", 709 load_addr); 710 } else { 711 images->ep = simple_strtoul(argv[0], NULL, 16); 712 debug("* kernel: cmdline image address = 0x%08lx\n", 713 images->ep); 714 } 715 716 ret = booti_setup(images); 717 if (ret != 0) 718 return 1; 719 720 ih = (struct Image_header *)map_sysmem(images->ep, 0); 721 722 lmb_reserve(&images->lmb, images->ep, le32_to_cpu(ih->image_size)); 723 724 unmap_sysmem(ih); 725 726 /* 727 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not 728 * have a header that provide this informaiton. 729 */ 730 if (bootm_find_images(flag, argc, argv)) 731 return 1; 732 733 return 0; 734 } 735 736 int do_booti(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 737 { 738 int ret; 739 740 /* Consume 'booti' */ 741 argc--; argv++; 742 743 if (booti_start(cmdtp, flag, argc, argv, &images)) 744 return 1; 745 746 /* 747 * We are doing the BOOTM_STATE_LOADOS state ourselves, so must 748 * disable interrupts ourselves 749 */ 750 bootm_disable_interrupts(); 751 752 images.os.os = IH_OS_LINUX; 753 ret = do_bootm_states(cmdtp, flag, argc, argv, 754 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO | 755 BOOTM_STATE_OS_GO, 756 &images, 1); 757 758 return ret; 759 } 760 761 #ifdef CONFIG_SYS_LONGHELP 762 static char booti_help_text[] = 763 "[addr [initrd[:size]] [fdt]]\n" 764 " - boot arm64 Linux Image stored in memory\n" 765 "\tThe argument 'initrd' is optional and specifies the address\n" 766 "\tof an initrd in memory. The optional parameter ':size' allows\n" 767 "\tspecifying the size of a RAW initrd.\n" 768 #if defined(CONFIG_OF_LIBFDT) 769 "\tSince booting a Linux kernel requires a flat device-tree, a\n" 770 "\tthird argument providing the address of the device-tree blob\n" 771 "\tis required. To boot a kernel with a device-tree blob but\n" 772 "\twithout an initrd image, use a '-' for the initrd argument.\n" 773 #endif 774 ""; 775 #endif 776 777 U_BOOT_CMD( 778 booti, CONFIG_SYS_MAXARGS, 1, do_booti, 779 "boot arm64 Linux Image image from memory", booti_help_text 780 ); 781 #endif /* CONFIG_CMD_BOOTI */ 782