1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2011 The Chromium OS Authors.
4 * (C) Copyright 2002-2006
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
9 * Marius Groeger <mgroeger@sysgo.de>
14 #include <bootstage.h>
23 #include <asm/cache.h>
24 #include <u-boot/crc.h>
25 /* TODO: can we just include all these headers whether needed or not? */
26 #if defined(CONFIG_CMD_BEDBUG)
27 #include <bedbug/type.h>
34 #include <env_internal.h>
39 #if defined(CONFIG_CMD_KGDB)
45 #ifdef CONFIG_BITBANGMII
51 #include <onenand_uboot.h>
54 #include <status_led.h>
55 #include <stdio_dev.h>
59 #ifdef CONFIG_ADDR_MAP
62 #include <asm/sections.h>
64 #include <linux/compiler.h>
65 #include <linux/err.h>
66 #include <efi_loader.h>
68 #if defined(CONFIG_GPIO_HOG)
72 DECLARE_GLOBAL_DATA_PTR;
74 ulong monitor_flash_len;
76 __weak int board_flash_wp_on(void)
79 * Most flashes can't be detected when write protection is enabled,
80 * so provide a way to let U-Boot gracefully ignore write protected
86 __weak void cpu_secondary_init_r(void)
90 static int initr_secondary_cpu(void)
93 * after non-volatile devices & environment is setup and cpu code have
94 * another round to deal with any initialization that might require
95 * full access to the environment or loading of some image (firmware)
96 * from a non-volatile device
98 /* TODO: maybe define this for all archs? */
99 cpu_secondary_init_r();
104 static int initr_trace(void)
107 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
113 static int initr_reloc(void)
115 /* tell others: relocation done */
116 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
123 * Some of these functions are needed purely because the functions they
124 * call return void. If we change them to return 0, these stubs can go away.
126 static int initr_caches(void)
134 __weak int fixup_cpu(void)
139 static int initr_reloc_global_data(void)
142 monitor_flash_len = _end - __image_copy_start;
143 #elif defined(CONFIG_NDS32) || defined(CONFIG_RISCV)
144 monitor_flash_len = (ulong)&_end - (ulong)&_start;
145 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
146 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
148 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
150 * The gd->cpu pointer is set to an address in flash before relocation.
151 * We need to update it to point to the same CPU entry in RAM.
152 * TODO: why not just add gd->reloc_ofs?
154 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
157 * If we didn't know the cpu mask & # cores, we can save them of
158 * now rather than 'computing' them constantly
162 #ifdef CONFIG_SYS_RELOC_GD_ENV_ADDR
164 * Relocate the early env_addr pointer unless we know it is not inside
165 * the binary. Some systems need this and for the rest, it doesn't hurt.
167 gd->env_addr += gd->reloc_off;
169 #ifdef CONFIG_OF_EMBED
171 * The fdt_blob needs to be moved to new relocation address
172 * incase of FDT blob is embedded with in image
174 gd->fdt_blob += gd->reloc_off;
176 #ifdef CONFIG_EFI_LOADER
178 * On the ARM architecture gd is mapped to a fixed register (r9 or x18).
179 * As this register may be overwritten by an EFI payload we save it here
180 * and restore it on every callback entered.
184 efi_runtime_relocate(gd->relocaddr, NULL);
190 static int initr_serial(void)
196 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
197 static int initr_trap(void)
200 * Setup trap handlers
202 #if defined(CONFIG_PPC)
203 trap_init(gd->relocaddr);
205 trap_init(CONFIG_SYS_SDRAM_BASE);
211 #ifdef CONFIG_ADDR_MAP
212 static int initr_addr_map(void)
221 static int initr_post_backlog(void)
223 post_output_backlog();
228 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
229 static int initr_unlock_ram_in_cache(void)
231 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
237 static int initr_pci(void)
239 if (IS_ENABLED(CONFIG_PCI_INIT_R))
246 static int initr_barrier(void)
249 /* TODO: Can we not use dmb() macros for this? */
255 static int initr_malloc(void)
259 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
260 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
261 gd->malloc_ptr / 1024);
263 /* The malloc area is immediately below the monitor copy in DRAM */
265 * This value MUST match the value of gd->start_addr_sp in board_f.c:
266 * reserve_noncached().
268 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
269 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
274 static int initr_console_record(void)
276 #if defined(CONFIG_CONSOLE_RECORD)
277 return console_record_init();
283 #ifdef CONFIG_SYS_NONCACHED_MEMORY
284 static int initr_noncached(void)
291 #ifdef CONFIG_OF_LIVE
292 static int initr_of_live(void)
296 bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live");
297 ret = of_live_build(gd->fdt_blob, (struct device_node **)&gd->of_root);
298 bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE);
307 static int initr_dm(void)
311 /* Save the pre-reloc driver model and start a new one */
312 gd->dm_root_f = gd->dm_root;
317 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_R, "dm_r");
318 ret = dm_init_and_scan(false);
319 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_R);
327 static int initr_dm_devices(void)
331 if (IS_ENABLED(CONFIG_TIMER_EARLY)) {
332 ret = dm_timer_init();
340 static int initr_bootstage(void)
342 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
347 __weak int power_init_board(void)
352 static int initr_announce(void)
354 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
358 #ifdef CONFIG_NEEDS_MANUAL_RELOC
359 static int initr_manual_reloc_cmdtable(void)
361 fixup_cmdtable(ll_entry_start(struct cmd_tbl, cmd),
362 ll_entry_count(struct cmd_tbl, cmd));
367 static int initr_binman(void)
369 if (!CONFIG_IS_ENABLED(BINMAN_FDT))
372 return binman_init();
375 #if defined(CONFIG_MTD_NOR_FLASH)
376 static int initr_flash(void)
378 ulong flash_size = 0;
383 if (board_flash_wp_on())
384 printf("Uninitialized - Write Protect On\n");
386 flash_size = flash_init();
388 print_size(flash_size, "");
389 #ifdef CONFIG_SYS_FLASH_CHECKSUM
391 * Compute and print flash CRC if flashchecksum is set to 'y'
393 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
395 if (env_get_yesno("flashchecksum") == 1) {
396 const uchar *flash_base = (const uchar *)CONFIG_SYS_FLASH_BASE;
398 printf(" CRC: %08X", crc32(0,
402 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
405 /* update start of FLASH memory */
406 #ifdef CONFIG_SYS_FLASH_BASE
407 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
409 /* size of FLASH memory (final value) */
410 bd->bi_flashsize = flash_size;
412 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
413 /* Make a update of the Memctrl. */
414 update_flash_size(flash_size);
417 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
418 /* flash mapped at end of memory map */
419 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
420 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
421 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
427 #ifdef CONFIG_CMD_NAND
428 /* go init the NAND */
429 static int initr_nand(void)
433 printf("%lu MiB\n", nand_size() / 1024);
438 #if defined(CONFIG_CMD_ONENAND)
439 /* go init the NAND */
440 static int initr_onenand(void)
449 static int initr_mmc(void)
452 mmc_initialize(gd->bd);
458 * Tell if it's OK to load the environment early in boot.
460 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
461 * if this is OK (defaulting to saying it's OK).
463 * NOTE: Loading the environment early can be a bad idea if security is
464 * important, since no verification is done on the environment.
466 * @return 0 if environment should not be loaded, !=0 if it is ok to load
468 static int should_load_env(void)
470 if (IS_ENABLED(CONFIG_OF_CONTROL))
471 return fdtdec_get_config_int(gd->fdt_blob,
472 "load-environment", 1);
474 if (IS_ENABLED(CONFIG_DELAY_ENVIRONMENT))
480 static int initr_env(void)
482 /* initialize environment */
483 if (should_load_env())
486 env_set_default(NULL, 0);
488 if (IS_ENABLED(CONFIG_OF_CONTROL))
489 env_set_hex("fdtcontroladdr",
490 (unsigned long)map_to_sysmem(gd->fdt_blob));
492 /* Initialize from environment */
493 image_load_addr = env_get_ulong("loadaddr", 16, image_load_addr);
498 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
499 static int initr_malloc_bootparams(void)
501 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
502 if (!gd->bd->bi_boot_params) {
503 puts("WARNING: Cannot allocate space for boot parameters\n");
510 static int initr_jumptable(void)
516 #if defined(CONFIG_API)
517 static int initr_api(void)
525 #ifdef CONFIG_CMD_NET
526 static int initr_ethaddr(void)
530 /* kept around for legacy kernels only ... ignore the next section */
531 eth_env_get_enetaddr("ethaddr", bd->bi_enetaddr);
532 #ifdef CONFIG_HAS_ETH1
533 eth_env_get_enetaddr("eth1addr", bd->bi_enet1addr);
535 #ifdef CONFIG_HAS_ETH2
536 eth_env_get_enetaddr("eth2addr", bd->bi_enet2addr);
538 #ifdef CONFIG_HAS_ETH3
539 eth_env_get_enetaddr("eth3addr", bd->bi_enet3addr);
541 #ifdef CONFIG_HAS_ETH4
542 eth_env_get_enetaddr("eth4addr", bd->bi_enet4addr);
544 #ifdef CONFIG_HAS_ETH5
545 eth_env_get_enetaddr("eth5addr", bd->bi_enet5addr);
549 #endif /* CONFIG_CMD_NET */
551 #ifdef CONFIG_CMD_KGDB
552 static int initr_kgdb(void)
560 #if defined(CONFIG_LED_STATUS)
561 static int initr_status_led(void)
563 #if defined(CONFIG_LED_STATUS_BOOT)
564 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING);
572 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
573 static int initr_scsi(void)
583 #ifdef CONFIG_BITBANGMII
584 static int initr_bbmii(void)
591 #ifdef CONFIG_CMD_NET
592 static int initr_net(void)
596 #if defined(CONFIG_RESET_PHY_R)
597 debug("Reset Ethernet PHY\n");
605 static int initr_post(void)
607 post_run(NULL, POST_RAM | post_bootmode_get(0));
612 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
613 static int initr_ide(void)
616 #if defined(CONFIG_START_IDE)
617 if (board_start_ide())
626 #if defined(CONFIG_PRAM)
628 * Export available size of memory for Linux, taking into account the
629 * protected RAM at top of memory
636 pram = env_get_ulong("pram", 10, CONFIG_PRAM);
637 sprintf(memsz, "%ldk", (long int)((gd->ram_size / 1024) - pram));
638 env_set("mem", memsz);
644 static int run_main_loop(void)
646 #ifdef CONFIG_SANDBOX
647 sandbox_main_loop_init();
649 /* main_loop() can return to retry autoboot, if so just run it again */
656 * We hope to remove most of the driver-related init and do it if/when
657 * the driver is later used.
659 * TODO: perhaps reset the watchdog in the initcall function after each call?
661 static init_fnc_t init_sequence_r[] = {
664 /* TODO: could x86/PPC have this also perhaps? */
667 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
668 * A temporary mapping of IFC high region is since removed,
669 * so environmental variables in NOR flash is not available
670 * until board_init() is called below to remap IFC to high
674 initr_reloc_global_data,
675 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
676 initr_unlock_ram_in_cache,
681 initr_bootstage, /* Needs malloc() but has its own timer */
682 initr_console_record,
683 #ifdef CONFIG_SYS_NONCACHED_MEMORY
686 #ifdef CONFIG_OF_LIVE
692 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV) || \
693 defined(CONFIG_SANDBOX)
694 board_init, /* Setup chipselects */
697 * TODO: printing of the clock inforamtion of the board is now
698 * implemented as part of bdinfo command. Currently only support for
699 * davinci SOC's is added. Remove this check once all the board
703 set_cpu_clk_info, /* Setup clock information */
705 #ifdef CONFIG_EFI_LOADER
709 #ifdef CONFIG_FSP_VERSION2
716 #if CONFIG_IS_ENABLED(WDT)
719 INIT_FUNC_WATCHDOG_RESET
720 #ifdef CONFIG_NEEDS_MANUAL_RELOC
721 initr_manual_reloc_cmdtable,
723 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
726 #ifdef CONFIG_ADDR_MAP
729 #if defined(CONFIG_BOARD_EARLY_INIT_R)
732 INIT_FUNC_WATCHDOG_RESET
736 INIT_FUNC_WATCHDOG_RESET
737 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
739 * Do early PCI configuration _before_ the flash gets initialised,
740 * because PCU resources are crucial for flash access on some boards.
744 #ifdef CONFIG_ARCH_EARLY_INIT_R
748 #ifdef CONFIG_MTD_NOR_FLASH
751 INIT_FUNC_WATCHDOG_RESET
752 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
753 /* initialize higher level parts of CPU like time base and timers */
756 #ifdef CONFIG_CMD_NAND
759 #ifdef CONFIG_CMD_ONENAND
766 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
767 initr_malloc_bootparams,
769 INIT_FUNC_WATCHDOG_RESET
771 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
772 mac_read_from_eeprom,
774 INIT_FUNC_WATCHDOG_RESET
775 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
777 * Do pci configuration
786 console_init_r, /* fully init console as a device */
787 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
791 #ifdef CONFIG_ARCH_MISC_INIT
792 arch_misc_init, /* miscellaneous arch-dependent init */
794 #ifdef CONFIG_MISC_INIT_R
795 misc_init_r, /* miscellaneous platform-dependent init */
797 INIT_FUNC_WATCHDOG_RESET
798 #ifdef CONFIG_CMD_KGDB
802 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K)
803 timer_init, /* initialize timer */
805 #if defined(CONFIG_LED_STATUS)
808 /* PPC has a udelay(20) here dating from 2002. Why? */
809 #ifdef CONFIG_CMD_NET
812 #if defined(CONFIG_GPIO_HOG)
815 #ifdef CONFIG_BOARD_LATE_INIT
818 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
819 INIT_FUNC_WATCHDOG_RESET
822 #ifdef CONFIG_BITBANGMII
825 #ifdef CONFIG_CMD_NET
826 INIT_FUNC_WATCHDOG_RESET
832 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
835 #ifdef CONFIG_LAST_STAGE_INIT
836 INIT_FUNC_WATCHDOG_RESET
838 * Some parts can be only initialized if all others (like
839 * Interrupts) are up and running (i.e. the PC-style ISA
844 #ifdef CONFIG_CMD_BEDBUG
845 INIT_FUNC_WATCHDOG_RESET
848 #if defined(CONFIG_PRAM)
851 #if defined(CONFIG_M68K) && defined(CONFIG_BLOCK_CACHE)
857 void board_init_r(gd_t *new_gd, ulong dest_addr)
860 * Set up the new global data pointer. So far only x86 does this
862 * TODO(sjg@chromium.org): Consider doing this for all archs, or
863 * dropping the new_gd parameter.
865 #if CONFIG_IS_ENABLED(X86_64)
866 arch_setup_gd(new_gd);
869 #ifdef CONFIG_NEEDS_MANUAL_RELOC
873 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
876 gd->flags &= ~GD_FLG_LOG_READY;
878 #ifdef CONFIG_NEEDS_MANUAL_RELOC
879 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
880 init_sequence_r[i] += gd->reloc_off;
883 if (initcall_run_list(init_sequence_r))
886 /* NOTREACHED - run_main_loop() does not return */