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>
62 #ifdef CONFIG_ADDR_MAP
65 #include <asm/sections.h>
67 #include <linux/compiler.h>
68 #include <linux/err.h>
69 #include <efi_loader.h>
71 #if defined(CONFIG_GPIO_HOG)
75 DECLARE_GLOBAL_DATA_PTR;
77 ulong monitor_flash_len;
79 __weak int board_flash_wp_on(void)
82 * Most flashes can't be detected when write protection is enabled,
83 * so provide a way to let U-Boot gracefully ignore write protected
89 __weak void cpu_secondary_init_r(void)
93 static int initr_secondary_cpu(void)
96 * after non-volatile devices & environment is setup and cpu code have
97 * another round to deal with any initialization that might require
98 * full access to the environment or loading of some image (firmware)
99 * from a non-volatile device
101 /* TODO: maybe define this for all archs? */
102 cpu_secondary_init_r();
107 static int initr_trace(void)
110 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
116 static int initr_reloc(void)
118 /* tell others: relocation done */
119 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
126 * Some of these functions are needed purely because the functions they
127 * call return void. If we change them to return 0, these stubs can go away.
129 static int initr_caches(void)
137 __weak int fixup_cpu(void)
142 static int initr_reloc_global_data(void)
145 monitor_flash_len = _end - __image_copy_start;
146 #elif defined(CONFIG_NDS32) || defined(CONFIG_RISCV)
147 monitor_flash_len = (ulong)&_end - (ulong)&_start;
148 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
149 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
151 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
153 * The gd->cpu pointer is set to an address in flash before relocation.
154 * We need to update it to point to the same CPU entry in RAM.
155 * TODO: why not just add gd->reloc_ofs?
157 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
160 * If we didn't know the cpu mask & # cores, we can save them of
161 * now rather than 'computing' them constantly
165 #ifdef CONFIG_SYS_RELOC_GD_ENV_ADDR
167 * Relocate the early env_addr pointer unless we know it is not inside
168 * the binary. Some systems need this and for the rest, it doesn't hurt.
170 gd->env_addr += gd->reloc_off;
172 #ifdef CONFIG_OF_EMBED
174 * The fdt_blob needs to be moved to new relocation address
175 * incase of FDT blob is embedded with in image
177 gd->fdt_blob += gd->reloc_off;
179 #ifdef CONFIG_EFI_LOADER
181 * On the ARM architecture gd is mapped to a fixed register (r9 or x18).
182 * As this register may be overwritten by an EFI payload we save it here
183 * and restore it on every callback entered.
187 efi_runtime_relocate(gd->relocaddr, NULL);
193 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
194 static int initr_trap(void)
197 * Setup trap handlers
199 #if defined(CONFIG_PPC)
200 trap_init(gd->relocaddr);
202 trap_init(CONFIG_SYS_SDRAM_BASE);
208 #ifdef CONFIG_ADDR_MAP
209 static int initr_addr_map(void)
218 static int initr_post_backlog(void)
220 post_output_backlog();
225 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
226 static int initr_unlock_ram_in_cache(void)
228 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
233 #ifdef CONFIG_PCI_ENDPOINT
234 static int initr_pci_ep(void)
243 static int initr_pci(void)
245 if (IS_ENABLED(CONFIG_PCI_INIT_R))
252 static int initr_barrier(void)
255 /* TODO: Can we not use dmb() macros for this? */
261 static int initr_malloc(void)
265 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
266 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
267 gd->malloc_ptr / 1024);
269 /* The malloc area is immediately below the monitor copy in DRAM */
271 * This value MUST match the value of gd->start_addr_sp in board_f.c:
272 * reserve_noncached().
274 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
275 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
280 static int initr_console_record(void)
282 #if defined(CONFIG_CONSOLE_RECORD)
283 return console_record_init();
289 #ifdef CONFIG_SYS_NONCACHED_MEMORY
290 static int initr_noncached(void)
297 #ifdef CONFIG_OF_LIVE
298 static int initr_of_live(void)
302 bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live");
303 ret = of_live_build(gd->fdt_blob, (struct device_node **)&gd->of_root);
304 bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE);
313 static int initr_dm(void)
317 /* Save the pre-reloc driver model and start a new one */
318 gd->dm_root_f = gd->dm_root;
323 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_R, "dm_r");
324 ret = dm_init_and_scan(false);
325 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_R);
333 static int initr_dm_devices(void)
337 if (IS_ENABLED(CONFIG_TIMER_EARLY)) {
338 ret = dm_timer_init();
346 static int initr_bootstage(void)
348 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
353 __weak int power_init_board(void)
358 static int initr_announce(void)
360 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
364 #ifdef CONFIG_NEEDS_MANUAL_RELOC
365 static int initr_manual_reloc_cmdtable(void)
367 fixup_cmdtable(ll_entry_start(struct cmd_tbl, cmd),
368 ll_entry_count(struct cmd_tbl, cmd));
373 static int initr_binman(void)
375 if (!CONFIG_IS_ENABLED(BINMAN_FDT))
378 return binman_init();
381 #if defined(CONFIG_MTD_NOR_FLASH)
382 __weak int is_flash_available(void)
387 static int initr_flash(void)
389 ulong flash_size = 0;
390 struct bd_info *bd = gd->bd;
392 if (!is_flash_available())
397 if (board_flash_wp_on())
398 printf("Uninitialized - Write Protect On\n");
400 flash_size = flash_init();
402 print_size(flash_size, "");
403 #ifdef CONFIG_SYS_FLASH_CHECKSUM
405 * Compute and print flash CRC if flashchecksum is set to 'y'
407 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
409 if (env_get_yesno("flashchecksum") == 1) {
410 const uchar *flash_base = (const uchar *)CONFIG_SYS_FLASH_BASE;
412 printf(" CRC: %08X", crc32(0,
416 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
419 /* update start of FLASH memory */
420 #ifdef CONFIG_SYS_FLASH_BASE
421 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
423 /* size of FLASH memory (final value) */
424 bd->bi_flashsize = flash_size;
426 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
427 /* Make a update of the Memctrl. */
428 update_flash_size(flash_size);
431 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
432 /* flash mapped at end of memory map */
433 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
434 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
435 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
441 #ifdef CONFIG_CMD_NAND
442 /* go init the NAND */
443 static int initr_nand(void)
447 printf("%lu MiB\n", nand_size() / 1024);
452 #if defined(CONFIG_CMD_ONENAND)
453 /* go init the NAND */
454 static int initr_onenand(void)
463 static int initr_mmc(void)
466 mmc_initialize(gd->bd);
472 static int initr_xen(void)
479 * Tell if it's OK to load the environment early in boot.
481 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
482 * if this is OK (defaulting to saying it's OK).
484 * NOTE: Loading the environment early can be a bad idea if security is
485 * important, since no verification is done on the environment.
487 * @return 0 if environment should not be loaded, !=0 if it is ok to load
489 static int should_load_env(void)
491 if (IS_ENABLED(CONFIG_OF_CONTROL))
492 return fdtdec_get_config_int(gd->fdt_blob,
493 "load-environment", 1);
495 if (IS_ENABLED(CONFIG_DELAY_ENVIRONMENT))
501 static int initr_env(void)
503 /* initialize environment */
504 if (should_load_env())
507 env_set_default(NULL, 0);
509 if (IS_ENABLED(CONFIG_OF_CONTROL))
510 env_set_hex("fdtcontroladdr",
511 (unsigned long)map_to_sysmem(gd->fdt_blob));
513 /* Initialize from environment */
514 image_load_addr = env_get_ulong("loadaddr", 16, image_load_addr);
519 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
520 static int initr_malloc_bootparams(void)
522 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
523 if (!gd->bd->bi_boot_params) {
524 puts("WARNING: Cannot allocate space for boot parameters\n");
531 static int initr_jumptable(void)
537 #if defined(CONFIG_API)
538 static int initr_api(void)
546 #ifdef CONFIG_CMD_NET
547 static int initr_ethaddr(void)
549 struct bd_info *bd = gd->bd;
551 /* kept around for legacy kernels only ... ignore the next section */
552 eth_env_get_enetaddr("ethaddr", bd->bi_enetaddr);
556 #endif /* CONFIG_CMD_NET */
558 #ifdef CONFIG_CMD_KGDB
559 static int initr_kgdb(void)
567 #if defined(CONFIG_LED_STATUS)
568 static int initr_status_led(void)
570 #if defined(CONFIG_LED_STATUS_BOOT)
571 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING);
579 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
580 static int initr_scsi(void)
590 #ifdef CONFIG_BITBANGMII
591 static int initr_bbmii(void)
598 #ifdef CONFIG_CMD_NET
599 static int initr_net(void)
603 #if defined(CONFIG_RESET_PHY_R)
604 debug("Reset Ethernet PHY\n");
612 static int initr_post(void)
614 post_run(NULL, POST_RAM | post_bootmode_get(0));
619 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
620 static int initr_ide(void)
623 #if defined(CONFIG_START_IDE)
624 if (board_start_ide())
633 #if defined(CONFIG_PRAM)
635 * Export available size of memory for Linux, taking into account the
636 * protected RAM at top of memory
643 pram = env_get_ulong("pram", 10, CONFIG_PRAM);
644 sprintf(memsz, "%ldk", (long int)((gd->ram_size / 1024) - pram));
645 env_set("mem", memsz);
651 static int run_main_loop(void)
653 #ifdef CONFIG_SANDBOX
654 sandbox_main_loop_init();
656 /* main_loop() can return to retry autoboot, if so just run it again */
663 * We hope to remove most of the driver-related init and do it if/when
664 * the driver is later used.
666 * TODO: perhaps reset the watchdog in the initcall function after each call?
668 static init_fnc_t init_sequence_r[] = {
671 /* TODO: could x86/PPC have this also perhaps? */
674 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
675 * A temporary mapping of IFC high region is since removed,
676 * so environmental variables in NOR flash is not available
677 * until board_init() is called below to remap IFC to high
681 initr_reloc_global_data,
682 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
683 initr_unlock_ram_in_cache,
688 initr_bootstage, /* Needs malloc() but has its own timer */
689 initr_console_record,
690 #ifdef CONFIG_SYS_NONCACHED_MEMORY
693 #ifdef CONFIG_OF_LIVE
699 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV) || \
700 defined(CONFIG_SANDBOX)
701 board_init, /* Setup chipselects */
704 * TODO: printing of the clock inforamtion of the board is now
705 * implemented as part of bdinfo command. Currently only support for
706 * davinci SOC's is added. Remove this check once all the board
710 set_cpu_clk_info, /* Setup clock information */
712 #ifdef CONFIG_EFI_LOADER
716 #ifdef CONFIG_FSP_VERSION2
723 #if CONFIG_IS_ENABLED(WDT)
726 INIT_FUNC_WATCHDOG_RESET
727 #if defined(CONFIG_NEEDS_MANUAL_RELOC) && defined(CONFIG_BLOCK_CACHE)
730 #ifdef CONFIG_NEEDS_MANUAL_RELOC
731 initr_manual_reloc_cmdtable,
733 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
736 #ifdef CONFIG_ADDR_MAP
739 #if defined(CONFIG_BOARD_EARLY_INIT_R)
742 INIT_FUNC_WATCHDOG_RESET
746 INIT_FUNC_WATCHDOG_RESET
747 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
749 * Do early PCI configuration _before_ the flash gets initialised,
750 * because PCU resources are crucial for flash access on some boards.
754 #ifdef CONFIG_ARCH_EARLY_INIT_R
758 #ifdef CONFIG_MTD_NOR_FLASH
761 INIT_FUNC_WATCHDOG_RESET
762 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
763 /* initialize higher level parts of CPU like time base and timers */
766 #ifdef CONFIG_CMD_NAND
769 #ifdef CONFIG_CMD_ONENAND
779 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
780 initr_malloc_bootparams,
782 INIT_FUNC_WATCHDOG_RESET
784 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
785 mac_read_from_eeprom,
787 INIT_FUNC_WATCHDOG_RESET
788 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
790 * Do pci configuration
799 console_init_r, /* fully init console as a device */
800 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
804 #ifdef CONFIG_ARCH_MISC_INIT
805 arch_misc_init, /* miscellaneous arch-dependent init */
807 #ifdef CONFIG_MISC_INIT_R
808 misc_init_r, /* miscellaneous platform-dependent init */
810 INIT_FUNC_WATCHDOG_RESET
811 #ifdef CONFIG_CMD_KGDB
815 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K)
816 timer_init, /* initialize timer */
818 #if defined(CONFIG_LED_STATUS)
821 /* PPC has a udelay(20) here dating from 2002. Why? */
822 #ifdef CONFIG_CMD_NET
825 #if defined(CONFIG_GPIO_HOG)
828 #ifdef CONFIG_BOARD_LATE_INIT
831 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
832 INIT_FUNC_WATCHDOG_RESET
835 #ifdef CONFIG_BITBANGMII
838 #ifdef CONFIG_PCI_ENDPOINT
841 #ifdef CONFIG_CMD_NET
842 INIT_FUNC_WATCHDOG_RESET
848 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
851 #ifdef CONFIG_LAST_STAGE_INIT
852 INIT_FUNC_WATCHDOG_RESET
854 * Some parts can be only initialized if all others (like
855 * Interrupts) are up and running (i.e. the PC-style ISA
860 #ifdef CONFIG_CMD_BEDBUG
861 INIT_FUNC_WATCHDOG_RESET
864 #if defined(CONFIG_PRAM)
870 void board_init_r(gd_t *new_gd, ulong dest_addr)
873 * Set up the new global data pointer. So far only x86 does this
875 * TODO(sjg@chromium.org): Consider doing this for all archs, or
876 * dropping the new_gd parameter.
878 #if CONFIG_IS_ENABLED(X86_64)
879 arch_setup_gd(new_gd);
882 #ifdef CONFIG_NEEDS_MANUAL_RELOC
886 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
889 gd->flags &= ~GD_FLG_LOG_READY;
891 #ifdef CONFIG_NEEDS_MANUAL_RELOC
892 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
893 init_sequence_r[i] += gd->reloc_off;
896 if (initcall_run_list(init_sequence_r))
899 /* NOTREACHED - run_main_loop() does not return */