1 /* 2 * Copyright (c) 2011 The Chromium OS Authors. 3 * (C) Copyright 2002-2006 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 * 6 * (C) Copyright 2002 7 * Sysgo Real-Time Solutions, GmbH <www.elinos.com> 8 * Marius Groeger <mgroeger@sysgo.de> 9 * 10 * SPDX-License-Identifier: GPL-2.0+ 11 */ 12 13 #include <common.h> 14 #include <api.h> 15 /* TODO: can we just include all these headers whether needed or not? */ 16 #if defined(CONFIG_CMD_BEDBUG) 17 #include <bedbug/type.h> 18 #endif 19 #include <command.h> 20 #include <console.h> 21 #include <dm.h> 22 #include <environment.h> 23 #include <fdtdec.h> 24 #include <ide.h> 25 #include <initcall.h> 26 #include <init_helpers.h> 27 #ifdef CONFIG_PS2KBD 28 #include <keyboard.h> 29 #endif 30 #if defined(CONFIG_CMD_KGDB) 31 #include <kgdb.h> 32 #endif 33 #include <malloc.h> 34 #include <mapmem.h> 35 #include <memalign.h> 36 #ifdef CONFIG_BITBANGMII 37 #include <miiphy.h> 38 #endif 39 #include <mmc.h> 40 #include <nand.h> 41 #include <of_live.h> 42 #include <onenand_uboot.h> 43 #include <scsi.h> 44 #include <serial.h> 45 #include <spi.h> 46 #include <stdio_dev.h> 47 #include <timer.h> 48 #include <trace.h> 49 #include <watchdog.h> 50 #ifdef CONFIG_ADDR_MAP 51 #include <asm/mmu.h> 52 #endif 53 #include <asm/sections.h> 54 #include <asm/system.h> 55 #include <dm/root.h> 56 #include <linux/compiler.h> 57 #include <linux/err.h> 58 #include <efi_loader.h> 59 #include <sysmem.h> 60 #include <bidram.h> 61 #include <boot_rkimg.h> 62 #include <mtd_blk.h> 63 64 DECLARE_GLOBAL_DATA_PTR; 65 66 ulong monitor_flash_len; 67 68 __weak int board_flash_wp_on(void) 69 { 70 /* 71 * Most flashes can't be detected when write protection is enabled, 72 * so provide a way to let U-Boot gracefully ignore write protected 73 * devices. 74 */ 75 return 0; 76 } 77 78 __weak void cpu_secondary_init_r(void) 79 { 80 } 81 82 static int initr_secondary_cpu(void) 83 { 84 /* 85 * after non-volatile devices & environment is setup and cpu code have 86 * another round to deal with any initialization that might require 87 * full access to the environment or loading of some image (firmware) 88 * from a non-volatile device 89 */ 90 /* TODO: maybe define this for all archs? */ 91 cpu_secondary_init_r(); 92 93 return 0; 94 } 95 96 static int initr_trace(void) 97 { 98 #ifdef CONFIG_TRACE 99 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE); 100 #endif 101 102 return 0; 103 } 104 105 static int initr_reloc(void) 106 { 107 /* tell others: relocation done */ 108 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT; 109 110 return 0; 111 } 112 113 #ifdef CONFIG_ARM 114 /* 115 * Some of these functions are needed purely because the functions they 116 * call return void. If we change them to return 0, these stubs can go away. 117 */ 118 119 static void print_cr(void) 120 { 121 u32 reg; 122 123 #ifdef CONFIG_ARM64 124 reg = get_sctlr(); /* get control reg. */ 125 #else 126 reg = get_cr(); 127 #endif 128 puts("CR: "); 129 if (reg & CR_M) 130 puts("M/"); 131 if (reg & CR_C) 132 puts("C/"); 133 if (reg & CR_I) 134 puts("I"); 135 putc('\n'); 136 } 137 138 static int initr_caches(void) 139 { 140 /* Enable caches */ 141 enable_caches(); 142 print_cr(); 143 144 return 0; 145 } 146 #endif 147 148 __weak int fixup_cpu(void) 149 { 150 return 0; 151 } 152 153 static int initr_reloc_global_data(void) 154 { 155 #ifdef __ARM__ 156 monitor_flash_len = _end - __image_copy_start; 157 #elif defined(CONFIG_NDS32) || defined(CONFIG_RISCV) 158 monitor_flash_len = (ulong)&_end - (ulong)&_start; 159 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2) 160 monitor_flash_len = (ulong)&__init_end - gd->relocaddr; 161 #endif 162 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) 163 /* 164 * The gd->cpu pointer is set to an address in flash before relocation. 165 * We need to update it to point to the same CPU entry in RAM. 166 * TODO: why not just add gd->reloc_ofs? 167 */ 168 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE; 169 170 /* 171 * If we didn't know the cpu mask & # cores, we can save them of 172 * now rather than 'computing' them constantly 173 */ 174 fixup_cpu(); 175 #endif 176 #ifdef CONFIG_SYS_EXTRA_ENV_RELOC 177 /* 178 * Some systems need to relocate the env_addr pointer early because the 179 * location it points to will get invalidated before env_relocate is 180 * called. One example is on systems that might use a L2 or L3 cache 181 * in SRAM mode and initialize that cache from SRAM mode back to being 182 * a cache in cpu_init_r. 183 */ 184 gd->env_addr += gd->relocaddr - CONFIG_SYS_MONITOR_BASE; 185 #endif 186 #ifdef CONFIG_OF_EMBED 187 /* 188 * The fdt_blob needs to be moved to new relocation address 189 * incase of FDT blob is embedded with in image 190 */ 191 gd->fdt_blob += gd->reloc_off; 192 #endif 193 #ifdef CONFIG_EFI_LOADER 194 efi_runtime_relocate(gd->relocaddr, NULL); 195 #endif 196 197 return 0; 198 } 199 200 static int initr_serial(void) 201 { 202 serial_initialize(); 203 return 0; 204 } 205 206 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) 207 static int initr_trap(void) 208 { 209 /* 210 * Setup trap handlers 211 */ 212 #if defined(CONFIG_PPC) 213 trap_init(gd->relocaddr); 214 #else 215 trap_init(CONFIG_SYS_SDRAM_BASE); 216 #endif 217 return 0; 218 } 219 #endif 220 221 #ifdef CONFIG_ADDR_MAP 222 static int initr_addr_map(void) 223 { 224 init_addr_map(); 225 226 return 0; 227 } 228 #endif 229 230 #ifdef CONFIG_POST 231 static int initr_post_backlog(void) 232 { 233 post_output_backlog(); 234 return 0; 235 } 236 #endif 237 238 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500) 239 static int initr_unlock_ram_in_cache(void) 240 { 241 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */ 242 return 0; 243 } 244 #endif 245 246 #ifdef CONFIG_PCI 247 static int initr_pci(void) 248 { 249 #ifndef CONFIG_DM_PCI 250 pci_init(); 251 #endif 252 253 return 0; 254 } 255 #endif 256 257 static int initr_barrier(void) 258 { 259 #ifdef CONFIG_PPC 260 /* TODO: Can we not use dmb() macros for this? */ 261 asm("sync ; isync"); 262 #endif 263 return 0; 264 } 265 266 static int initr_malloc(void) 267 { 268 ulong malloc_start; 269 270 #if CONFIG_VAL(SYS_MALLOC_F_LEN) 271 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr, 272 gd->malloc_ptr / 1024); 273 #endif 274 /* The malloc area is immediately below the monitor copy in DRAM */ 275 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN; 276 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN), 277 TOTAL_MALLOC_LEN); 278 return 0; 279 } 280 281 static int initr_console_record(void) 282 { 283 #if defined(CONFIG_CONSOLE_RECORD) 284 int ret; 285 286 ret = console_record_init(); 287 if (!ret) 288 console_record_reset_enable(); 289 return ret; 290 #else 291 return 0; 292 #endif 293 } 294 295 #ifdef CONFIG_SYS_NONCACHED_MEMORY 296 static int initr_noncached(void) 297 { 298 noncached_init(); 299 return 0; 300 } 301 #endif 302 303 #ifdef CONFIG_OF_LIVE 304 static int initr_of_live(void) 305 { 306 int ret; 307 308 bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live"); 309 ret = of_live_build(gd->fdt_blob, (struct device_node **)&gd->of_root); 310 bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE); 311 if (ret) 312 return ret; 313 314 return 0; 315 } 316 #endif 317 318 #ifdef CONFIG_DM 319 static int initr_dm(void) 320 { 321 int ret; 322 323 /* Save the pre-reloc driver model and start a new one */ 324 gd->dm_root_f = gd->dm_root; 325 gd->dm_root = NULL; 326 #ifdef CONFIG_TIMER 327 gd->timer = NULL; 328 #endif 329 bootstage_start(BOOTSTATE_ID_ACCUM_DM_R, "dm_r"); 330 ret = dm_init_and_scan(false); 331 bootstage_accum(BOOTSTATE_ID_ACCUM_DM_R); 332 if (ret) 333 return ret; 334 #ifdef CONFIG_TIMER_EARLY 335 ret = dm_timer_init(); 336 if (ret) 337 return ret; 338 #endif 339 340 return 0; 341 } 342 #endif 343 344 static int initr_bootstage(void) 345 { 346 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r"); 347 348 return 0; 349 } 350 351 __weak int power_init_board(void) 352 { 353 return 0; 354 } 355 356 static int initr_announce(void) 357 { 358 ulong addr; 359 360 #ifndef CONFIG_SKIP_RELOCATE_UBOOT 361 addr = gd->relocaddr; 362 #else 363 addr = CONFIG_SYS_TEXT_BASE; 364 #endif 365 debug("Now running in RAM - U-Boot at: %08lx\n", addr); 366 367 return 0; 368 } 369 370 #ifdef CONFIG_NEEDS_MANUAL_RELOC 371 static int initr_manual_reloc_cmdtable(void) 372 { 373 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd), 374 ll_entry_count(cmd_tbl_t, cmd)); 375 return 0; 376 } 377 #endif 378 379 #if defined(CONFIG_MTD_NOR_FLASH) 380 static int initr_flash(void) 381 { 382 ulong flash_size = 0; 383 bd_t *bd = gd->bd; 384 385 puts("Flash: "); 386 387 if (board_flash_wp_on()) 388 printf("Uninitialized - Write Protect On\n"); 389 else 390 flash_size = flash_init(); 391 392 print_size(flash_size, ""); 393 #ifdef CONFIG_SYS_FLASH_CHECKSUM 394 /* 395 * Compute and print flash CRC if flashchecksum is set to 'y' 396 * 397 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX 398 */ 399 if (env_get_yesno("flashchecksum") == 1) { 400 printf(" CRC: %08X", crc32(0, 401 (const unsigned char *) CONFIG_SYS_FLASH_BASE, 402 flash_size)); 403 } 404 #endif /* CONFIG_SYS_FLASH_CHECKSUM */ 405 putc('\n'); 406 407 /* update start of FLASH memory */ 408 #ifdef CONFIG_SYS_FLASH_BASE 409 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; 410 #endif 411 /* size of FLASH memory (final value) */ 412 bd->bi_flashsize = flash_size; 413 414 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE) 415 /* Make a update of the Memctrl. */ 416 update_flash_size(flash_size); 417 #endif 418 419 420 #if defined(CONFIG_OXC) || defined(CONFIG_RMU) 421 /* flash mapped at end of memory map */ 422 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size; 423 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE 424 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */ 425 #endif 426 return 0; 427 } 428 #endif 429 430 #if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI) 431 static int initr_spi(void) 432 { 433 /* MPC8xx does this here */ 434 #ifdef CONFIG_MPC8XX_SPI 435 #if !defined(CONFIG_ENV_IS_IN_EEPROM) 436 spi_init_f(); 437 #endif 438 spi_init_r(); 439 #endif 440 return 0; 441 } 442 #endif 443 444 #ifdef CONFIG_CMD_NAND 445 /* go init the NAND */ 446 static int initr_nand(void) 447 { 448 #ifndef CONFIG_USING_KERNEL_DTB 449 puts("NAND: "); 450 nand_init(); 451 printf("%lu MiB\n", nand_size() / 1024); 452 #endif 453 return 0; 454 } 455 #endif 456 457 #if defined(CONFIG_CMD_ONENAND) 458 /* go init the NAND */ 459 static int initr_onenand(void) 460 { 461 puts("NAND: "); 462 onenand_init(); 463 return 0; 464 } 465 #endif 466 467 #ifdef CONFIG_MMC 468 static int initr_mmc(void) 469 { 470 /* 471 * When CONFIG_USING_KERNEL_DTB is enabled, mmc has been initialized earlier. 472 */ 473 #ifndef CONFIG_USING_KERNEL_DTB 474 puts("MMC: "); 475 mmc_initialize(gd->bd); 476 #endif 477 return 0; 478 } 479 #endif 480 481 #ifdef CONFIG_MTD_BLK 482 static int initr_mtd_blk(void) 483 { 484 #ifndef CONFIG_USING_KERNEL_DTB 485 struct blk_desc *dev_desc; 486 487 puts("mtd_blk: "); 488 dev_desc = rockchip_get_bootdev(); 489 if (dev_desc) 490 mtd_blk_map_partitions(dev_desc); 491 #endif 492 return 0; 493 } 494 #endif 495 496 #if !defined(CONFIG_USING_KERNEL_DTB) || !defined(CONFIG_ENV_IS_NOWHERE) 497 /* 498 * Tell if it's OK to load the environment early in boot. 499 * 500 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see 501 * if this is OK (defaulting to saying it's OK). 502 * 503 * NOTE: Loading the environment early can be a bad idea if security is 504 * important, since no verification is done on the environment. 505 * 506 * @return 0 if environment should not be loaded, !=0 if it is ok to load 507 */ 508 static int should_load_env(void) 509 { 510 #ifdef CONFIG_OF_CONTROL 511 return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1); 512 #elif defined CONFIG_DELAY_ENVIRONMENT 513 return 0; 514 #else 515 return 1; 516 #endif 517 } 518 519 static int initr_env(void) 520 { 521 /* initialize environment */ 522 if (should_load_env()) 523 env_relocate(); 524 else 525 set_default_env(NULL); 526 #ifdef CONFIG_OF_CONTROL 527 env_set_addr("fdtcontroladdr", gd->fdt_blob); 528 #endif 529 530 /* Initialize from environment */ 531 load_addr = env_get_ulong("loadaddr", 16, load_addr); 532 533 return 0; 534 } 535 #endif 536 537 #ifdef CONFIG_USING_KERNEL_DTB 538 /* 539 * If !defined(CONFIG_ENV_IS_NOWHERE): 540 * 541 * Storage env or kernel dtb load depends on bootdev, while bootdev 542 * depends on env varname: devtype, devnum and rkimg_bootdev, etc. 543 * So we have to use nowhere env firstly and cover the storage env 544 * after it is loaded. 545 * 546 * Providing a minimum and necessary nowhere env for board init to 547 * avoid covering the other varnames in storage env. 548 */ 549 static int initr_env_nowhere(void) 550 { 551 #ifdef CONFIG_ENV_IS_NOWHERE 552 set_default_env(NULL); 553 return 0; 554 #else 555 const char env_minimum[] = { 556 ENV_MEM_LAYOUT_SETTINGS 557 #ifdef ENV_MEM_LAYOUT_SETTINGS1 558 ENV_MEM_LAYOUT_SETTINGS1 559 #endif 560 #ifdef RKIMG_DET_BOOTDEV 561 RKIMG_DET_BOOTDEV 562 #endif 563 }; 564 565 return set_board_env((char *)env_minimum, ENV_SIZE, 0, true); 566 #endif 567 } 568 569 #if !defined(CONFIG_ENV_IS_NOWHERE) 570 /* 571 * storage has been initialized in board_init(), we could switch env 572 * from nowhere to storage, i.e. CONFIG_ENV_IS_IN_xxx=y. 573 */ 574 static int initr_env_switch(void) 575 { 576 ALLOC_CACHE_ALIGN_BUFFER(env_t, env_nowhere, 1); 577 char *data; 578 int ret; 579 580 data = env_get("bootargs"); 581 if (data) { 582 env_set("bootargs_tmp", data); 583 env_set("bootargs", NULL); 584 } 585 586 /* Export nowhere env for late use */ 587 ret = env_export(env_nowhere); 588 if (ret) { 589 printf("%s: export nowhere env fail, ret=%d\n", __func__, ret); 590 return -EINVAL; 591 } 592 593 /* Destroy nowhere env and import storage env */ 594 initr_env(); 595 596 /* Append/override nowhere env to storage env */ 597 set_board_env((char *)env_nowhere->data, ENV_SIZE, H_NOCLEAR, false); 598 599 /* 600 * Restore nowhere bootargs to append/override the one in env storage. 601 * 602 * Without this, the entire "bootargs" in storage env is replaces by 603 * the one in env_nowhere->data. 604 */ 605 data = env_get("bootargs_tmp"); 606 if (data) { 607 env_update("bootargs", data); 608 env_set("bootargs_tmp", NULL); 609 } 610 611 return 0; 612 } 613 #endif /* CONFIG_ENV_IS_NOWHERE */ 614 #endif /* CONFIG_USING_KERNEL_DTB */ 615 616 #ifdef CONFIG_SYS_BOOTPARAMS_LEN 617 static int initr_malloc_bootparams(void) 618 { 619 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN); 620 if (!gd->bd->bi_boot_params) { 621 puts("WARNING: Cannot allocate space for boot parameters\n"); 622 return -ENOMEM; 623 } 624 return 0; 625 } 626 #endif 627 628 static int initr_jumptable(void) 629 { 630 jumptable_init(); 631 return 0; 632 } 633 634 #if defined(CONFIG_API) 635 static int initr_api(void) 636 { 637 /* Initialize API */ 638 api_init(); 639 return 0; 640 } 641 #endif 642 643 /* enable exceptions */ 644 #ifdef CONFIG_ARM 645 static int initr_enable_interrupts(void) 646 { 647 enable_interrupts(); 648 return 0; 649 } 650 #endif 651 652 #ifdef CONFIG_CMD_NET 653 static int initr_ethaddr(void) 654 { 655 bd_t *bd = gd->bd; 656 657 /* kept around for legacy kernels only ... ignore the next section */ 658 eth_env_get_enetaddr("ethaddr", bd->bi_enetaddr); 659 #ifdef CONFIG_HAS_ETH1 660 eth_env_get_enetaddr("eth1addr", bd->bi_enet1addr); 661 #endif 662 #ifdef CONFIG_HAS_ETH2 663 eth_env_get_enetaddr("eth2addr", bd->bi_enet2addr); 664 #endif 665 #ifdef CONFIG_HAS_ETH3 666 eth_env_get_enetaddr("eth3addr", bd->bi_enet3addr); 667 #endif 668 #ifdef CONFIG_HAS_ETH4 669 eth_env_get_enetaddr("eth4addr", bd->bi_enet4addr); 670 #endif 671 #ifdef CONFIG_HAS_ETH5 672 eth_env_get_enetaddr("eth5addr", bd->bi_enet5addr); 673 #endif 674 return 0; 675 } 676 #endif /* CONFIG_CMD_NET */ 677 678 #ifdef CONFIG_CMD_KGDB 679 static int initr_kgdb(void) 680 { 681 puts("KGDB: "); 682 kgdb_init(); 683 return 0; 684 } 685 #endif 686 687 #if defined(CONFIG_LED_STATUS) 688 static int initr_status_led(void) 689 { 690 #if defined(CONFIG_LED_STATUS_BOOT) 691 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING); 692 #else 693 status_led_init(); 694 #endif 695 return 0; 696 } 697 #endif 698 699 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI) 700 static int initr_scsi(void) 701 { 702 puts("SCSI: "); 703 scsi_init(); 704 705 return 0; 706 } 707 #endif 708 709 #ifdef CONFIG_BITBANGMII 710 static int initr_bbmii(void) 711 { 712 bb_miiphy_init(); 713 return 0; 714 } 715 #endif 716 717 #ifdef CONFIG_CMD_NET 718 static int initr_net(void) 719 { 720 puts("Net: "); 721 eth_initialize(); 722 #if defined(CONFIG_RESET_PHY_R) 723 debug("Reset Ethernet PHY\n"); 724 reset_phy(); 725 #endif 726 return 0; 727 } 728 #endif 729 730 #ifdef CONFIG_POST 731 static int initr_post(void) 732 { 733 post_run(NULL, POST_RAM | post_bootmode_get(0)); 734 return 0; 735 } 736 #endif 737 738 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_IDE) 739 static int initr_pcmcia(void) 740 { 741 puts("PCMCIA:"); 742 pcmcia_init(); 743 return 0; 744 } 745 #endif 746 747 #if defined(CONFIG_IDE) 748 static int initr_ide(void) 749 { 750 puts("IDE: "); 751 #if defined(CONFIG_START_IDE) 752 if (board_start_ide()) 753 ide_init(); 754 #else 755 ide_init(); 756 #endif 757 return 0; 758 } 759 #endif 760 761 #if defined(CONFIG_PRAM) 762 /* 763 * Export available size of memory for Linux, taking into account the 764 * protected RAM at top of memory 765 */ 766 int initr_mem(void) 767 { 768 ulong pram = 0; 769 char memsz[32]; 770 771 # ifdef CONFIG_PRAM 772 pram = env_get_ulong("pram", 10, CONFIG_PRAM); 773 # endif 774 sprintf(memsz, "%ldk", (long int) ((gd->ram_size / 1024) - pram)); 775 env_set("mem", memsz); 776 777 return 0; 778 } 779 #endif 780 781 #ifdef CONFIG_CMD_BEDBUG 782 static int initr_bedbug(void) 783 { 784 bedbug_init(); 785 786 return 0; 787 } 788 #endif 789 790 #ifdef CONFIG_PS2KBD 791 static int initr_kbd(void) 792 { 793 puts("PS/2: "); 794 kbd_init(); 795 return 0; 796 } 797 #endif 798 799 __weak int interrupt_debugger_init(void) 800 { 801 return 0; 802 } 803 804 __weak int board_initr_caches_fixup(void) 805 { 806 return 0; 807 } 808 809 static int run_main_loop(void) 810 { 811 #ifdef CONFIG_SANDBOX 812 sandbox_main_loop_init(); 813 #endif 814 /* main_loop() can return to retry autoboot, if so just run it again */ 815 for (;;) 816 main_loop(); 817 return 0; 818 } 819 820 /* 821 * Over time we hope to remove these functions with code fragments and 822 * stub funtcions, and instead call the relevant function directly. 823 * 824 * We also hope to remove most of the driver-related init and do it if/when 825 * the driver is later used. 826 * 827 * TODO: perhaps reset the watchdog in the initcall function after each call? 828 */ 829 static init_fnc_t init_sequence_r[] = { 830 initr_trace, 831 initr_reloc, 832 /* TODO: could x86/PPC have this also perhaps? */ 833 #ifdef CONFIG_ARM 834 initr_caches, 835 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR. 836 * A temporary mapping of IFC high region is since removed, 837 * so environmental variables in NOR flash is not availble 838 * until board_init() is called below to remap IFC to high 839 * region. 840 */ 841 #endif 842 initr_reloc_global_data, 843 844 /* 845 * Some platform requires to reserve memory regions for some firmware 846 * to avoid kernel touches it, but U-Boot may have communication with 847 * firmware by share memory. So that we had better reserve firmware 848 * region after the initr_caches() which enables MMU and init 849 * translation table, we need firmware region to be mapped as cacheable 850 * like other regions, otherwise there would be dcache coherence issue 851 * between firmware and U-Boot. 852 */ 853 board_initr_caches_fixup, 854 855 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500) 856 initr_unlock_ram_in_cache, 857 #endif 858 initr_barrier, 859 initr_malloc, 860 #ifdef CONFIG_BIDRAM 861 bidram_initr, 862 #endif 863 #ifdef CONFIG_SYSMEM 864 sysmem_initr, 865 #endif 866 log_init, 867 initr_bootstage, /* Needs malloc() but has its own timer */ 868 initr_console_record, 869 #ifdef CONFIG_SYS_NONCACHED_MEMORY 870 initr_noncached, 871 #endif 872 bootstage_relocate, 873 874 interrupt_init, 875 #ifdef CONFIG_ARM 876 initr_enable_interrupts, 877 #endif 878 interrupt_debugger_init, 879 880 #ifdef CONFIG_OF_LIVE 881 initr_of_live, 882 #endif 883 #ifdef CONFIG_DM 884 initr_dm, 885 #endif 886 887 #ifdef CONFIG_USING_KERNEL_DTB 888 initr_env_nowhere, 889 #endif 890 #if defined(CONFIG_BOARD_EARLY_INIT_R) 891 board_early_init_r, 892 #endif 893 894 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV) 895 board_init, /* Setup chipselects */ 896 #endif 897 #if defined(CONFIG_USING_KERNEL_DTB) && !defined(CONFIG_ENV_IS_NOWHERE) 898 initr_env_switch, 899 #elif defined(CONFIG_ENVF) 900 env_load, 901 #endif 902 903 /* 904 * TODO: printing of the clock inforamtion of the board is now 905 * implemented as part of bdinfo command. Currently only support for 906 * davinci SOC's is added. Remove this check once all the board 907 * implement this. 908 */ 909 #ifdef CONFIG_CLOCKS 910 set_cpu_clk_info, /* Setup clock information */ 911 #endif 912 #ifdef CONFIG_EFI_LOADER 913 efi_memory_init, 914 #endif 915 stdio_init_tables, 916 initr_serial, 917 initr_announce, 918 INIT_FUNC_WATCHDOG_RESET 919 #ifdef CONFIG_NEEDS_MANUAL_RELOC 920 initr_manual_reloc_cmdtable, 921 #endif 922 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) 923 initr_trap, 924 #endif 925 #ifdef CONFIG_ADDR_MAP 926 initr_addr_map, 927 #endif 928 INIT_FUNC_WATCHDOG_RESET 929 #ifdef CONFIG_POST 930 initr_post_backlog, 931 #endif 932 INIT_FUNC_WATCHDOG_RESET 933 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT) 934 /* 935 * Do early PCI configuration _before_ the flash gets initialised, 936 * because PCU ressources are crucial for flash access on some boards. 937 */ 938 initr_pci, 939 #endif 940 #ifdef CONFIG_ARCH_EARLY_INIT_R 941 arch_early_init_r, 942 #endif 943 power_init_board, 944 #ifdef CONFIG_MTD_NOR_FLASH 945 initr_flash, 946 #endif 947 INIT_FUNC_WATCHDOG_RESET 948 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86) 949 /* initialize higher level parts of CPU like time base and timers */ 950 cpu_init_r, 951 #endif 952 #ifdef CONFIG_PPC 953 initr_spi, 954 #endif 955 #ifdef CONFIG_CMD_NAND 956 initr_nand, 957 #endif 958 #ifdef CONFIG_CMD_ONENAND 959 initr_onenand, 960 #endif 961 #ifdef CONFIG_MTD_BLK 962 initr_mtd_blk, 963 #endif 964 #ifdef CONFIG_MMC 965 initr_mmc, 966 #endif 967 #ifndef CONFIG_USING_KERNEL_DTB 968 initr_env, 969 #endif 970 #ifdef CONFIG_SYS_BOOTPARAMS_LEN 971 initr_malloc_bootparams, 972 #endif 973 INIT_FUNC_WATCHDOG_RESET 974 initr_secondary_cpu, 975 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET) 976 mac_read_from_eeprom, 977 #endif 978 INIT_FUNC_WATCHDOG_RESET 979 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT) 980 /* 981 * Do pci configuration 982 */ 983 initr_pci, 984 #endif 985 stdio_add_devices, 986 initr_jumptable, 987 #ifdef CONFIG_API 988 initr_api, 989 #endif 990 console_init_r, /* fully init console as a device */ 991 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE 992 console_announce_r, 993 show_board_info, 994 #endif 995 #ifdef CONFIG_ARCH_MISC_INIT 996 arch_misc_init, /* miscellaneous arch-dependent init */ 997 #endif 998 #ifdef CONFIG_MISC_INIT_R 999 misc_init_r, /* miscellaneous platform-dependent init */ 1000 #endif 1001 INIT_FUNC_WATCHDOG_RESET 1002 #ifdef CONFIG_CMD_KGDB 1003 initr_kgdb, 1004 #endif 1005 1006 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K) 1007 timer_init, /* initialize timer */ 1008 #endif 1009 #if defined(CONFIG_LED_STATUS) 1010 initr_status_led, 1011 #endif 1012 /* PPC has a udelay(20) here dating from 2002. Why? */ 1013 #ifdef CONFIG_CMD_NET 1014 initr_ethaddr, 1015 #endif 1016 #ifdef CONFIG_BOARD_LATE_INIT 1017 board_late_init, 1018 #endif 1019 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI) 1020 INIT_FUNC_WATCHDOG_RESET 1021 initr_scsi, 1022 #endif 1023 #ifdef CONFIG_BITBANGMII 1024 initr_bbmii, 1025 #endif 1026 #ifdef CONFIG_CMD_NET 1027 INIT_FUNC_WATCHDOG_RESET 1028 initr_net, 1029 #endif 1030 #ifdef CONFIG_POST 1031 initr_post, 1032 #endif 1033 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_IDE) 1034 initr_pcmcia, 1035 #endif 1036 #if defined(CONFIG_IDE) 1037 initr_ide, 1038 #endif 1039 #ifdef CONFIG_LAST_STAGE_INIT 1040 INIT_FUNC_WATCHDOG_RESET 1041 /* 1042 * Some parts can be only initialized if all others (like 1043 * Interrupts) are up and running (i.e. the PC-style ISA 1044 * keyboard). 1045 */ 1046 last_stage_init, 1047 #endif 1048 #ifdef CONFIG_CMD_BEDBUG 1049 INIT_FUNC_WATCHDOG_RESET 1050 initr_bedbug, 1051 #endif 1052 #if defined(CONFIG_PRAM) 1053 initr_mem, 1054 #endif 1055 #ifdef CONFIG_PS2KBD 1056 initr_kbd, 1057 #endif 1058 run_main_loop, 1059 }; 1060 1061 void board_init_r(gd_t *new_gd, ulong dest_addr) 1062 { 1063 /* 1064 * Set up the new global data pointer. So far only x86 does this 1065 * here. 1066 * TODO(sjg@chromium.org): Consider doing this for all archs, or 1067 * dropping the new_gd parameter. 1068 */ 1069 #if CONFIG_IS_ENABLED(X86_64) 1070 arch_setup_gd(new_gd); 1071 #endif 1072 1073 #ifdef CONFIG_NEEDS_MANUAL_RELOC 1074 int i; 1075 #endif 1076 1077 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64) 1078 gd = new_gd; 1079 #endif 1080 gd->flags &= ~GD_FLG_LOG_READY; 1081 1082 #ifdef CONFIG_NEEDS_MANUAL_RELOC 1083 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++) 1084 init_sequence_r[i] += gd->reloc_off; 1085 #endif 1086 1087 if (initcall_run_list(init_sequence_r)) 1088 hang(); 1089 1090 /* NOTREACHED - run_main_loop() does not return */ 1091 hang(); 1092 } 1093