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(nand_info_t *nand, int nand_dev, loff_t off, 376 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(nand, off, &len, 390 imgdata); 391 if (ret < 0 && ret != -EUCLEAN) { 392 free(imgdata); 393 return ret; 394 } 395 396 if (!image_check_hcrc(imgdata)) { 397 free(imgdata); 398 return 0; 399 } 400 401 printf("Legacy Image at NAND device %d offset %08llX:\n", 402 nand_dev, off); 403 image_print_contents(imgdata); 404 405 puts(" Verifying Checksum ... "); 406 if (!image_check_dcrc(imgdata)) 407 puts("Bad Data CRC\n"); 408 else 409 puts("OK\n"); 410 411 free(imgdata); 412 413 return 0; 414 } 415 416 static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off, 417 size_t len) 418 { 419 void *imgdata; 420 int ret; 421 422 imgdata = malloc(len); 423 if (!imgdata) { 424 printf("May be a FIT Image at NAND device %d offset %08llX:\n", 425 nand_dev, off); 426 printf(" Low memory(cannot allocate memory for image)\n"); 427 return -ENOMEM; 428 } 429 430 ret = nand_read_skip_bad(nand, off, &len, 431 imgdata); 432 if (ret < 0 && ret != -EUCLEAN) { 433 free(imgdata); 434 return ret; 435 } 436 437 if (!fit_check_format(imgdata)) { 438 free(imgdata); 439 return 0; 440 } 441 442 printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off); 443 444 fit_print_contents(imgdata); 445 free(imgdata); 446 447 return 0; 448 } 449 450 static int do_imls_nand(void) 451 { 452 nand_info_t *nand; 453 int nand_dev = nand_curr_device; 454 size_t len; 455 loff_t off; 456 u32 buffer[16]; 457 458 if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) { 459 puts("\nNo NAND devices available\n"); 460 return -ENODEV; 461 } 462 463 printf("\n"); 464 465 for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) { 466 nand = &nand_info[nand_dev]; 467 if (!nand->name || !nand->size) 468 continue; 469 470 for (off = 0; off < nand->size; off += nand->erasesize) { 471 const image_header_t *header; 472 int ret; 473 474 if (nand_block_isbad(nand, off)) 475 continue; 476 477 len = sizeof(buffer); 478 479 ret = nand_read(nand, off, &len, (u8 *)buffer); 480 if (ret < 0 && ret != -EUCLEAN) { 481 printf("NAND read error %d at offset %08llX\n", 482 ret, off); 483 continue; 484 } 485 486 switch (genimg_get_format(buffer)) { 487 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 488 case IMAGE_FORMAT_LEGACY: 489 header = (const image_header_t *)buffer; 490 491 len = image_get_image_size(header); 492 nand_imls_legacyimage(nand, nand_dev, off, len); 493 break; 494 #endif 495 #if defined(CONFIG_FIT) 496 case IMAGE_FORMAT_FIT: 497 len = fit_get_size(buffer); 498 nand_imls_fitimage(nand, nand_dev, off, len); 499 break; 500 #endif 501 } 502 } 503 } 504 505 return 0; 506 } 507 #endif 508 509 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND) 510 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 511 { 512 int ret_nor = 0, ret_nand = 0; 513 514 #if defined(CONFIG_CMD_IMLS) 515 ret_nor = do_imls_nor(); 516 #endif 517 518 #if defined(CONFIG_CMD_IMLS_NAND) 519 ret_nand = do_imls_nand(); 520 #endif 521 522 if (ret_nor) 523 return ret_nor; 524 525 if (ret_nand) 526 return ret_nand; 527 528 return (0); 529 } 530 531 U_BOOT_CMD( 532 imls, 1, 1, do_imls, 533 "list all images found in flash", 534 "\n" 535 " - Prints information about all images found at sector/block\n" 536 " boundaries in nor/nand flash." 537 ); 538 #endif 539 540 #ifdef CONFIG_CMD_BOOTZ 541 542 int __weak bootz_setup(ulong image, ulong *start, ulong *end) 543 { 544 /* Please define bootz_setup() for your platform */ 545 546 puts("Your platform's zImage format isn't supported yet!\n"); 547 return -1; 548 } 549 550 /* 551 * zImage booting support 552 */ 553 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc, 554 char * const argv[], bootm_headers_t *images) 555 { 556 int ret; 557 ulong zi_start, zi_end; 558 559 ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START, 560 images, 1); 561 562 /* Setup Linux kernel zImage entry point */ 563 if (!argc) { 564 images->ep = load_addr; 565 debug("* kernel: default image load address = 0x%08lx\n", 566 load_addr); 567 } else { 568 images->ep = simple_strtoul(argv[0], NULL, 16); 569 debug("* kernel: cmdline image address = 0x%08lx\n", 570 images->ep); 571 } 572 573 ret = bootz_setup(images->ep, &zi_start, &zi_end); 574 if (ret != 0) 575 return 1; 576 577 lmb_reserve(&images->lmb, images->ep, zi_end - zi_start); 578 579 /* 580 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not 581 * have a header that provide this informaiton. 582 */ 583 if (bootm_find_images(flag, argc, argv)) 584 return 1; 585 586 return 0; 587 } 588 589 int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 590 { 591 int ret; 592 593 /* Consume 'bootz' */ 594 argc--; argv++; 595 596 if (bootz_start(cmdtp, flag, argc, argv, &images)) 597 return 1; 598 599 /* 600 * We are doing the BOOTM_STATE_LOADOS state ourselves, so must 601 * disable interrupts ourselves 602 */ 603 bootm_disable_interrupts(); 604 605 images.os.os = IH_OS_LINUX; 606 ret = do_bootm_states(cmdtp, flag, argc, argv, 607 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO | 608 BOOTM_STATE_OS_GO, 609 &images, 1); 610 611 return ret; 612 } 613 614 #ifdef CONFIG_SYS_LONGHELP 615 static char bootz_help_text[] = 616 "[addr [initrd[:size]] [fdt]]\n" 617 " - boot Linux zImage stored in memory\n" 618 "\tThe argument 'initrd' is optional and specifies the address\n" 619 "\tof the initrd in memory. The optional argument ':size' allows\n" 620 "\tspecifying the size of RAW initrd.\n" 621 #if defined(CONFIG_OF_LIBFDT) 622 "\tWhen booting a Linux kernel which requires a flat device-tree\n" 623 "\ta third argument is required which is the address of the\n" 624 "\tdevice-tree blob. To boot that kernel without an initrd image,\n" 625 "\tuse a '-' for the second argument. If you do not pass a third\n" 626 "\ta bd_info struct will be passed instead\n" 627 #endif 628 ""; 629 #endif 630 631 U_BOOT_CMD( 632 bootz, CONFIG_SYS_MAXARGS, 1, do_bootz, 633 "boot Linux zImage image from memory", bootz_help_text 634 ); 635 #endif /* CONFIG_CMD_BOOTZ */ 636 637 #ifdef CONFIG_CMD_BOOTI 638 /* See Documentation/arm64/booting.txt in the Linux kernel */ 639 struct Image_header { 640 uint32_t code0; /* Executable code */ 641 uint32_t code1; /* Executable code */ 642 uint64_t text_offset; /* Image load offset, LE */ 643 uint64_t image_size; /* Effective Image size, LE */ 644 uint64_t res1; /* reserved */ 645 uint64_t res2; /* reserved */ 646 uint64_t res3; /* reserved */ 647 uint64_t res4; /* reserved */ 648 uint32_t magic; /* Magic number */ 649 uint32_t res5; 650 }; 651 652 #define LINUX_ARM64_IMAGE_MAGIC 0x644d5241 653 654 static int booti_setup(bootm_headers_t *images) 655 { 656 struct Image_header *ih; 657 uint64_t dst; 658 659 ih = (struct Image_header *)map_sysmem(images->ep, 0); 660 661 if (ih->magic != le32_to_cpu(LINUX_ARM64_IMAGE_MAGIC)) { 662 puts("Bad Linux ARM64 Image magic!\n"); 663 return 1; 664 } 665 666 if (ih->image_size == 0) { 667 puts("Image lacks image_size field, assuming 16MiB\n"); 668 ih->image_size = (16 << 20); 669 } 670 671 /* 672 * If we are not at the correct run-time location, set the new 673 * correct location and then move the image there. 674 */ 675 dst = gd->bd->bi_dram[0].start + le32_to_cpu(ih->text_offset); 676 if (images->ep != dst) { 677 void *src; 678 679 debug("Moving Image from 0x%lx to 0x%llx\n", images->ep, dst); 680 681 src = (void *)images->ep; 682 images->ep = dst; 683 memmove((void *)dst, src, le32_to_cpu(ih->image_size)); 684 } 685 686 return 0; 687 } 688 689 /* 690 * Image booting support 691 */ 692 static int booti_start(cmd_tbl_t *cmdtp, int flag, int argc, 693 char * const argv[], bootm_headers_t *images) 694 { 695 int ret; 696 struct Image_header *ih; 697 698 ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START, 699 images, 1); 700 701 /* Setup Linux kernel Image entry point */ 702 if (!argc) { 703 images->ep = load_addr; 704 debug("* kernel: default image load address = 0x%08lx\n", 705 load_addr); 706 } else { 707 images->ep = simple_strtoul(argv[0], NULL, 16); 708 debug("* kernel: cmdline image address = 0x%08lx\n", 709 images->ep); 710 } 711 712 ret = booti_setup(images); 713 if (ret != 0) 714 return 1; 715 716 ih = (struct Image_header *)map_sysmem(images->ep, 0); 717 718 lmb_reserve(&images->lmb, images->ep, le32_to_cpu(ih->image_size)); 719 720 /* 721 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not 722 * have a header that provide this informaiton. 723 */ 724 if (bootm_find_images(flag, argc, argv)) 725 return 1; 726 727 return 0; 728 } 729 730 int do_booti(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 731 { 732 int ret; 733 734 /* Consume 'booti' */ 735 argc--; argv++; 736 737 if (booti_start(cmdtp, flag, argc, argv, &images)) 738 return 1; 739 740 /* 741 * We are doing the BOOTM_STATE_LOADOS state ourselves, so must 742 * disable interrupts ourselves 743 */ 744 bootm_disable_interrupts(); 745 746 images.os.os = IH_OS_LINUX; 747 ret = do_bootm_states(cmdtp, flag, argc, argv, 748 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO | 749 BOOTM_STATE_OS_GO, 750 &images, 1); 751 752 return ret; 753 } 754 755 #ifdef CONFIG_SYS_LONGHELP 756 static char booti_help_text[] = 757 "[addr [initrd[:size]] [fdt]]\n" 758 " - boot arm64 Linux Image stored in memory\n" 759 "\tThe argument 'initrd' is optional and specifies the address\n" 760 "\tof an initrd in memory. The optional parameter ':size' allows\n" 761 "\tspecifying the size of a RAW initrd.\n" 762 #if defined(CONFIG_OF_LIBFDT) 763 "\tSince booting a Linux kernel requires a flat device-tree, a\n" 764 "\tthird argument providing the address of the device-tree blob\n" 765 "\tis required. To boot a kernel with a device-tree blob but\n" 766 "\twithout an initrd image, use a '-' for the initrd argument.\n" 767 #endif 768 ""; 769 #endif 770 771 U_BOOT_CMD( 772 booti, CONFIG_SYS_MAXARGS, 1, do_booti, 773 "boot arm64 Linux Image image from memory", booti_help_text 774 ); 775 #endif /* CONFIG_CMD_BOOTI */ 776