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
52 #include <onenand_uboot.h>
56 #include <status_led.h>
57 #include <stdio_dev.h>
64 #ifdef CONFIG_ADDR_MAP
67 #include <asm/sections.h>
69 #include <linux/compiler.h>
70 #include <linux/err.h>
71 #include <efi_loader.h>
73 #if defined(CONFIG_GPIO_HOG)
76 #ifdef CONFIG_EFI_SETUP_EARLY
77 #include <efi_loader.h>
80 DECLARE_GLOBAL_DATA_PTR;
82 ulong monitor_flash_len;
84 __weak int board_flash_wp_on(void)
87 * Most flashes can't be detected when write protection is enabled,
88 * so provide a way to let U-Boot gracefully ignore write protected
94 __weak void cpu_secondary_init_r(void)
98 static int initr_secondary_cpu(void)
101 * after non-volatile devices & environment is setup and cpu code have
102 * another round to deal with any initialization that might require
103 * full access to the environment or loading of some image (firmware)
104 * from a non-volatile device
106 /* TODO: maybe define this for all archs? */
107 cpu_secondary_init_r();
112 static int initr_trace(void)
115 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
121 static int initr_reloc(void)
123 /* tell others: relocation done */
124 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
131 * Some of these functions are needed purely because the functions they
132 * call return void. If we change them to return 0, these stubs can go away.
134 static int initr_caches(void)
142 __weak int fixup_cpu(void)
147 static int initr_reloc_global_data(void)
150 monitor_flash_len = _end - __image_copy_start;
151 #elif defined(CONFIG_NDS32) || defined(CONFIG_RISCV)
152 monitor_flash_len = (ulong)&_end - (ulong)&_start;
153 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
154 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
156 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
158 * The gd->cpu pointer is set to an address in flash before relocation.
159 * We need to update it to point to the same CPU entry in RAM.
160 * TODO: why not just add gd->reloc_ofs?
162 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
165 * If we didn't know the cpu mask & # cores, we can save them of
166 * now rather than 'computing' them constantly
170 #ifdef CONFIG_SYS_RELOC_GD_ENV_ADDR
172 * Relocate the early env_addr pointer unless we know it is not inside
173 * the binary. Some systems need this and for the rest, it doesn't hurt.
175 gd->env_addr += gd->reloc_off;
177 #ifdef CONFIG_OF_EMBED
179 * The fdt_blob needs to be moved to new relocation address
180 * incase of FDT blob is embedded with in image
182 gd->fdt_blob += gd->reloc_off;
184 #ifdef CONFIG_EFI_LOADER
186 * On the ARM architecture gd is mapped to a fixed register (r9 or x18).
187 * As this register may be overwritten by an EFI payload we save it here
188 * and restore it on every callback entered.
192 efi_runtime_relocate(gd->relocaddr, NULL);
198 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
199 static int initr_trap(void)
202 * Setup trap handlers
204 #if defined(CONFIG_PPC)
205 trap_init(gd->relocaddr);
207 trap_init(CONFIG_SYS_SDRAM_BASE);
213 #ifdef CONFIG_ADDR_MAP
214 static int initr_addr_map(void)
223 static int initr_post_backlog(void)
225 post_output_backlog();
230 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
231 static int initr_unlock_ram_in_cache(void)
233 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
238 #ifdef CONFIG_PCI_ENDPOINT
239 static int initr_pci_ep(void)
248 static int initr_pci(void)
250 if (IS_ENABLED(CONFIG_PCI_INIT_R))
257 static int initr_barrier(void)
260 /* TODO: Can we not use dmb() macros for this? */
266 static int initr_malloc(void)
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);
274 /* The malloc area is immediately below the monitor copy in DRAM */
276 * This value MUST match the value of gd->start_addr_sp in board_f.c:
277 * reserve_noncached().
279 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
280 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
285 static int initr_console_record(void)
287 #if defined(CONFIG_CONSOLE_RECORD)
288 return console_record_init();
294 #ifdef CONFIG_SYS_NONCACHED_MEMORY
295 static int initr_noncached(void)
302 #ifdef CONFIG_OF_LIVE
303 static int initr_of_live(void)
307 bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live");
308 ret = of_live_build(gd->fdt_blob, (struct device_node **)&gd->of_root);
309 bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE);
318 static int initr_dm(void)
322 /* Save the pre-reloc driver model and start a new one */
323 gd->dm_root_f = gd->dm_root;
328 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_R, "dm_r");
329 ret = dm_init_and_scan(false);
330 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_R);
338 static int initr_dm_devices(void)
342 if (IS_ENABLED(CONFIG_TIMER_EARLY)) {
343 ret = dm_timer_init();
348 if (IS_ENABLED(CONFIG_MULTIPLEXER)) {
350 * Initialize the multiplexer controls to their default state.
351 * This must be done early as other drivers may unknowingly
362 static int initr_bootstage(void)
364 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
369 __weak int power_init_board(void)
374 static int initr_announce(void)
376 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
380 #ifdef CONFIG_NEEDS_MANUAL_RELOC
381 static int initr_manual_reloc_cmdtable(void)
383 fixup_cmdtable(ll_entry_start(struct cmd_tbl, cmd),
384 ll_entry_count(struct cmd_tbl, cmd));
389 static int initr_binman(void)
391 if (!CONFIG_IS_ENABLED(BINMAN_FDT))
394 return binman_init();
397 #if defined(CONFIG_MTD_NOR_FLASH)
398 __weak int is_flash_available(void)
403 static int initr_flash(void)
405 ulong flash_size = 0;
406 struct bd_info *bd = gd->bd;
408 if (!is_flash_available())
413 if (board_flash_wp_on())
414 printf("Uninitialized - Write Protect On\n");
416 flash_size = flash_init();
418 print_size(flash_size, "");
419 #ifdef CONFIG_SYS_FLASH_CHECKSUM
421 * Compute and print flash CRC if flashchecksum is set to 'y'
423 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
425 if (env_get_yesno("flashchecksum") == 1) {
426 const uchar *flash_base = (const uchar *)CONFIG_SYS_FLASH_BASE;
428 printf(" CRC: %08X", crc32(0,
432 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
435 /* update start of FLASH memory */
436 #ifdef CONFIG_SYS_FLASH_BASE
437 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
439 /* size of FLASH memory (final value) */
440 bd->bi_flashsize = flash_size;
442 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
443 /* Make a update of the Memctrl. */
444 update_flash_size(flash_size);
447 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
448 /* flash mapped at end of memory map */
449 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
450 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
451 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
457 #ifdef CONFIG_CMD_NAND
458 /* go init the NAND */
459 static int initr_nand(void)
463 printf("%lu MiB\n", nand_size() / 1024);
468 #if defined(CONFIG_CMD_ONENAND)
469 /* go init the NAND */
470 static int initr_onenand(void)
479 static int initr_mmc(void)
482 mmc_initialize(gd->bd);
488 static int initr_xen(void)
495 #ifdef CONFIG_PVBLOCK
496 static int initr_pvblock(void)
505 * Tell if it's OK to load the environment early in boot.
507 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
508 * if this is OK (defaulting to saying it's OK).
510 * NOTE: Loading the environment early can be a bad idea if security is
511 * important, since no verification is done on the environment.
513 * @return 0 if environment should not be loaded, !=0 if it is ok to load
515 static int should_load_env(void)
517 if (IS_ENABLED(CONFIG_OF_CONTROL))
518 return fdtdec_get_config_int(gd->fdt_blob,
519 "load-environment", 1);
521 if (IS_ENABLED(CONFIG_DELAY_ENVIRONMENT))
527 static int initr_env(void)
529 /* initialize environment */
530 if (should_load_env())
533 env_set_default(NULL, 0);
535 if (IS_ENABLED(CONFIG_OF_CONTROL))
536 env_set_hex("fdtcontroladdr",
537 (unsigned long)map_to_sysmem(gd->fdt_blob));
539 /* Initialize from environment */
540 image_load_addr = env_get_ulong("loadaddr", 16, image_load_addr);
545 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
546 static int initr_malloc_bootparams(void)
548 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
549 if (!gd->bd->bi_boot_params) {
550 puts("WARNING: Cannot allocate space for boot parameters\n");
557 static int initr_jumptable(void)
563 #if defined(CONFIG_API)
564 static int initr_api(void)
572 #ifdef CONFIG_CMD_NET
573 static int initr_ethaddr(void)
575 struct bd_info *bd = gd->bd;
577 /* kept around for legacy kernels only ... ignore the next section */
578 eth_env_get_enetaddr("ethaddr", bd->bi_enetaddr);
582 #endif /* CONFIG_CMD_NET */
584 #ifdef CONFIG_CMD_KGDB
585 static int initr_kgdb(void)
593 #if defined(CONFIG_LED_STATUS)
594 static int initr_status_led(void)
596 #if defined(CONFIG_LED_STATUS_BOOT)
597 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING);
605 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
606 static int initr_scsi(void)
616 #ifdef CONFIG_BITBANGMII
617 static int initr_bbmii(void)
624 #ifdef CONFIG_CMD_NET
625 static int initr_net(void)
629 #if defined(CONFIG_RESET_PHY_R)
630 debug("Reset Ethernet PHY\n");
638 static int initr_post(void)
640 post_run(NULL, POST_RAM | post_bootmode_get(0));
645 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
646 static int initr_ide(void)
649 #if defined(CONFIG_START_IDE)
650 if (board_start_ide())
659 #if defined(CONFIG_PRAM)
661 * Export available size of memory for Linux, taking into account the
662 * protected RAM at top of memory
669 pram = env_get_ulong("pram", 10, CONFIG_PRAM);
670 sprintf(memsz, "%ldk", (long int)((gd->ram_size / 1024) - pram));
671 env_set("mem", memsz);
677 static int run_main_loop(void)
679 #ifdef CONFIG_SANDBOX
680 sandbox_main_loop_init();
682 /* main_loop() can return to retry autoboot, if so just run it again */
689 * We hope to remove most of the driver-related init and do it if/when
690 * the driver is later used.
692 * TODO: perhaps reset the watchdog in the initcall function after each call?
694 static init_fnc_t init_sequence_r[] = {
697 /* TODO: could x86/PPC have this also perhaps? */
700 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
701 * A temporary mapping of IFC high region is since removed,
702 * so environmental variables in NOR flash is not available
703 * until board_init() is called below to remap IFC to high
707 initr_reloc_global_data,
708 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
709 initr_unlock_ram_in_cache,
714 initr_bootstage, /* Needs malloc() but has its own timer */
715 initr_console_record,
716 #ifdef CONFIG_SYS_NONCACHED_MEMORY
719 #ifdef CONFIG_OF_LIVE
725 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV) || \
726 defined(CONFIG_SANDBOX)
727 board_init, /* Setup chipselects */
730 * TODO: printing of the clock inforamtion of the board is now
731 * implemented as part of bdinfo command. Currently only support for
732 * davinci SOC's is added. Remove this check once all the board
736 set_cpu_clk_info, /* Setup clock information */
738 #ifdef CONFIG_EFI_LOADER
742 #ifdef CONFIG_FSP_VERSION2
749 #if CONFIG_IS_ENABLED(WDT)
752 INIT_FUNC_WATCHDOG_RESET
753 #if defined(CONFIG_NEEDS_MANUAL_RELOC) && defined(CONFIG_BLOCK_CACHE)
756 #ifdef CONFIG_NEEDS_MANUAL_RELOC
757 initr_manual_reloc_cmdtable,
759 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
762 #ifdef CONFIG_ADDR_MAP
765 #if defined(CONFIG_BOARD_EARLY_INIT_R)
768 INIT_FUNC_WATCHDOG_RESET
772 INIT_FUNC_WATCHDOG_RESET
773 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
775 * Do early PCI configuration _before_ the flash gets initialised,
776 * because PCU resources are crucial for flash access on some boards.
780 #ifdef CONFIG_ARCH_EARLY_INIT_R
784 #ifdef CONFIG_MTD_NOR_FLASH
787 INIT_FUNC_WATCHDOG_RESET
788 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
789 /* initialize higher level parts of CPU like time base and timers */
792 #ifdef CONFIG_CMD_NAND
795 #ifdef CONFIG_CMD_ONENAND
804 #ifdef CONFIG_PVBLOCK
808 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
809 initr_malloc_bootparams,
811 INIT_FUNC_WATCHDOG_RESET
813 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
814 mac_read_from_eeprom,
816 INIT_FUNC_WATCHDOG_RESET
817 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
819 * Do pci configuration
828 console_init_r, /* fully init console as a device */
829 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
833 #ifdef CONFIG_ARCH_MISC_INIT
834 arch_misc_init, /* miscellaneous arch-dependent init */
836 #ifdef CONFIG_MISC_INIT_R
837 misc_init_r, /* miscellaneous platform-dependent init */
839 INIT_FUNC_WATCHDOG_RESET
840 #ifdef CONFIG_CMD_KGDB
844 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K)
845 timer_init, /* initialize timer */
847 #if defined(CONFIG_LED_STATUS)
850 /* PPC has a udelay(20) here dating from 2002. Why? */
851 #ifdef CONFIG_CMD_NET
854 #if defined(CONFIG_GPIO_HOG)
857 #ifdef CONFIG_BOARD_LATE_INIT
860 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
861 INIT_FUNC_WATCHDOG_RESET
864 #ifdef CONFIG_BITBANGMII
867 #ifdef CONFIG_PCI_ENDPOINT
870 #ifdef CONFIG_CMD_NET
871 INIT_FUNC_WATCHDOG_RESET
877 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
880 #ifdef CONFIG_LAST_STAGE_INIT
881 INIT_FUNC_WATCHDOG_RESET
883 * Some parts can be only initialized if all others (like
884 * Interrupts) are up and running (i.e. the PC-style ISA
889 #ifdef CONFIG_CMD_BEDBUG
890 INIT_FUNC_WATCHDOG_RESET
893 #if defined(CONFIG_PRAM)
896 #ifdef CONFIG_EFI_SETUP_EARLY
897 (init_fnc_t)efi_init_obj_list,
902 void board_init_r(gd_t *new_gd, ulong dest_addr)
905 * Set up the new global data pointer. So far only x86 does this
907 * TODO(sjg@chromium.org): Consider doing this for all archs, or
908 * dropping the new_gd parameter.
910 #if CONFIG_IS_ENABLED(X86_64)
911 arch_setup_gd(new_gd);
914 #ifdef CONFIG_NEEDS_MANUAL_RELOC
918 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
921 gd->flags &= ~GD_FLG_LOG_READY;
923 #ifdef CONFIG_NEEDS_MANUAL_RELOC
924 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
925 init_sequence_r[i] += gd->reloc_off;
928 if (initcall_run_list(init_sequence_r))
931 /* NOTREACHED - run_main_loop() does not return */