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 <asm/global_data.h>
25 #include <u-boot/crc.h>
31 #include <env_internal.h>
36 /* TODO: can we just include all these headers whether needed or not? */
37 #if defined(CONFIG_CMD_KGDB)
43 #ifdef CONFIG_BITBANGMII
50 #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 <dm/ofnode.h>
68 #include <linux/compiler.h>
69 #include <linux/err.h>
70 #include <efi_loader.h>
72 #if defined(CONFIG_GPIO_HOG)
75 #ifdef CONFIG_EFI_SETUP_EARLY
76 #include <efi_loader.h>
79 DECLARE_GLOBAL_DATA_PTR;
81 ulong monitor_flash_len;
83 __weak int board_flash_wp_on(void)
86 * Most flashes can't be detected when write protection is enabled,
87 * so provide a way to let U-Boot gracefully ignore write protected
93 __weak int cpu_secondary_init_r(void)
98 static int initr_trace(void)
101 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
107 static int initr_reloc(void)
109 /* tell others: relocation done */
110 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
115 #if defined(CONFIG_ARM) || defined(CONFIG_RISCV)
117 * Some of these functions are needed purely because the functions they
118 * call return void. If we change them to return 0, these stubs can go away.
120 static int initr_caches(void)
128 __weak int fixup_cpu(void)
133 static int initr_reloc_global_data(void)
136 monitor_flash_len = _end - __image_copy_start;
137 #elif defined(CONFIG_NDS32) || defined(CONFIG_RISCV)
138 monitor_flash_len = (ulong)&_end - (ulong)&_start;
139 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
140 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
142 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
144 * The gd->cpu pointer is set to an address in flash before relocation.
145 * We need to update it to point to the same CPU entry in RAM.
146 * TODO: why not just add gd->reloc_ofs?
148 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
151 * If we didn't know the cpu mask & # cores, we can save them of
152 * now rather than 'computing' them constantly
156 #ifdef CONFIG_SYS_RELOC_GD_ENV_ADDR
158 * Relocate the early env_addr pointer unless we know it is not inside
159 * the binary. Some systems need this and for the rest, it doesn't hurt.
161 gd->env_addr += gd->reloc_off;
163 #ifdef CONFIG_OF_EMBED
165 * The fdt_blob needs to be moved to new relocation address
166 * incase of FDT blob is embedded with in image
168 gd->fdt_blob += gd->reloc_off;
170 #ifdef CONFIG_EFI_LOADER
172 * On the ARM architecture gd is mapped to a fixed register (r9 or x18).
173 * As this register may be overwritten by an EFI payload we save it here
174 * and restore it on every callback entered.
178 efi_runtime_relocate(gd->relocaddr, NULL);
184 __weak int arch_initr_trap(void)
189 #ifdef CONFIG_ADDR_MAP
190 static int initr_addr_map(void)
198 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
199 static int initr_unlock_ram_in_cache(void)
201 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
206 static int initr_barrier(void)
209 /* TODO: Can we not use dmb() macros for this? */
215 static int initr_malloc(void)
219 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
220 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
221 gd->malloc_ptr / 1024);
223 /* The malloc area is immediately below the monitor copy in DRAM */
225 * This value MUST match the value of gd->start_addr_sp in board_f.c:
226 * reserve_noncached().
228 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
229 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
234 static int initr_of_live(void)
236 if (CONFIG_IS_ENABLED(OF_LIVE)) {
239 bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live");
240 ret = of_live_build(gd->fdt_blob,
241 (struct device_node **)gd_of_root_ptr());
242 bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE);
251 static int initr_dm(void)
255 /* Save the pre-reloc driver model and start a new one */
256 gd->dm_root_f = gd->dm_root;
261 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_R, "dm_r");
262 ret = dm_init_and_scan(false);
263 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_R);
271 static int initr_dm_devices(void)
275 if (IS_ENABLED(CONFIG_TIMER_EARLY)) {
276 ret = dm_timer_init();
281 if (IS_ENABLED(CONFIG_MULTIPLEXER)) {
283 * Initialize the multiplexer controls to their default state.
284 * This must be done early as other drivers may unknowingly
295 static int initr_bootstage(void)
297 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
302 __weak int power_init_board(void)
307 static int initr_announce(void)
309 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
313 #ifdef CONFIG_NEEDS_MANUAL_RELOC
314 static int initr_manual_reloc_cmdtable(void)
316 fixup_cmdtable(ll_entry_start(struct cmd_tbl, cmd),
317 ll_entry_count(struct cmd_tbl, cmd));
322 static int initr_binman(void)
326 if (!CONFIG_IS_ENABLED(BINMAN_FDT))
331 printf("binman_init failed:%d\n", ret);
336 #if defined(CONFIG_MTD_NOR_FLASH)
337 __weak int is_flash_available(void)
342 static int initr_flash(void)
344 ulong flash_size = 0;
345 struct bd_info *bd = gd->bd;
347 if (!is_flash_available())
352 if (board_flash_wp_on())
353 printf("Uninitialized - Write Protect On\n");
355 flash_size = flash_init();
357 print_size(flash_size, "");
358 #ifdef CONFIG_SYS_FLASH_CHECKSUM
360 * Compute and print flash CRC if flashchecksum is set to 'y'
362 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
364 if (env_get_yesno("flashchecksum") == 1) {
365 const uchar *flash_base = (const uchar *)CONFIG_SYS_FLASH_BASE;
367 printf(" CRC: %08X", crc32(0,
371 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
374 /* update start of FLASH memory */
375 #ifdef CONFIG_SYS_FLASH_BASE
376 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
378 /* size of FLASH memory (final value) */
379 bd->bi_flashsize = flash_size;
381 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
382 /* Make a update of the Memctrl. */
383 update_flash_size(flash_size);
386 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
387 /* flash mapped at end of memory map */
388 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
389 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
390 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
396 #ifdef CONFIG_CMD_NAND
397 /* go init the NAND */
398 static int initr_nand(void)
402 printf("%lu MiB\n", nand_size() / 1024);
407 #if defined(CONFIG_CMD_ONENAND)
408 /* go init the NAND */
409 static int initr_onenand(void)
418 static int initr_mmc(void)
421 mmc_initialize(gd->bd);
426 #ifdef CONFIG_PVBLOCK
427 static int initr_pvblock(void)
436 * Tell if it's OK to load the environment early in boot.
438 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
439 * if this is OK (defaulting to saying it's OK).
441 * NOTE: Loading the environment early can be a bad idea if security is
442 * important, since no verification is done on the environment.
444 * @return 0 if environment should not be loaded, !=0 if it is ok to load
446 static int should_load_env(void)
448 if (IS_ENABLED(CONFIG_OF_CONTROL))
449 return ofnode_conf_read_int("load-environment", 1);
451 if (IS_ENABLED(CONFIG_DELAY_ENVIRONMENT))
457 static int initr_env(void)
459 /* initialize environment */
460 if (should_load_env())
463 env_set_default(NULL, 0);
467 if (IS_ENABLED(CONFIG_OF_CONTROL))
468 env_set_hex("fdtcontroladdr",
469 (unsigned long)map_to_sysmem(gd->fdt_blob));
471 /* Initialize from environment */
472 image_load_addr = env_get_ulong("loadaddr", 16, image_load_addr);
477 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
478 static int initr_malloc_bootparams(void)
480 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
481 if (!gd->bd->bi_boot_params) {
482 puts("WARNING: Cannot allocate space for boot parameters\n");
489 #ifdef CONFIG_CMD_NET
490 static int initr_ethaddr(void)
492 struct bd_info *bd = gd->bd;
494 /* kept around for legacy kernels only ... ignore the next section */
495 eth_env_get_enetaddr("ethaddr", bd->bi_enetaddr);
499 #endif /* CONFIG_CMD_NET */
501 #ifdef CONFIG_CMD_KGDB
502 static int initr_kgdb(void)
510 #if defined(CONFIG_LED_STATUS)
511 static int initr_status_led(void)
513 #if defined(CONFIG_LED_STATUS_BOOT)
514 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING);
522 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
523 static int initr_scsi(void)
533 #ifdef CONFIG_CMD_NET
534 static int initr_net(void)
538 #if defined(CONFIG_RESET_PHY_R)
539 debug("Reset Ethernet PHY\n");
547 static int initr_post(void)
549 post_run(NULL, POST_RAM | post_bootmode_get(0));
554 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
555 static int initr_ide(void)
558 #if defined(CONFIG_START_IDE)
559 if (board_start_ide())
568 #if defined(CONFIG_PRAM)
570 * Export available size of memory for Linux, taking into account the
571 * protected RAM at top of memory
578 pram = env_get_ulong("pram", 10, CONFIG_PRAM);
579 sprintf(memsz, "%ldk", (long int)((gd->ram_size / 1024) - pram));
580 env_set("mem", memsz);
586 static int dm_announce(void)
591 if (IS_ENABLED(CONFIG_DM)) {
592 dm_get_stats(&device_count, &uclass_count);
593 printf("Core: %d devices, %d uclasses", device_count,
595 if (CONFIG_IS_ENABLED(OF_REAL))
596 printf(", devicetree: %s", fdtdec_get_srcname());
598 if (IS_ENABLED(CONFIG_OF_HAS_PRIOR_STAGE) &&
599 (gd->fdt_src == FDTSRC_SEPARATE ||
600 gd->fdt_src == FDTSRC_EMBED)) {
601 printf("Warning: Unexpected devicetree source (not from a prior stage)");
602 printf("Warning: U-Boot may not function properly\n");
609 static int run_main_loop(void)
611 #ifdef CONFIG_SANDBOX
612 sandbox_main_loop_init();
614 /* main_loop() can return to retry autoboot, if so just run it again */
621 * We hope to remove most of the driver-related init and do it if/when
622 * the driver is later used.
624 * TODO: perhaps reset the watchdog in the initcall function after each call?
626 static init_fnc_t init_sequence_r[] = {
629 /* TODO: could x86/PPC have this also perhaps? */
630 #if defined(CONFIG_ARM) || defined(CONFIG_RISCV)
632 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
633 * A temporary mapping of IFC high region is since removed,
634 * so environmental variables in NOR flash is not available
635 * until board_init() is called below to remap IFC to high
639 initr_reloc_global_data,
640 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
641 initr_unlock_ram_in_cache,
646 initr_bootstage, /* Needs malloc() but has its own timer */
647 #if defined(CONFIG_CONSOLE_RECORD)
650 #ifdef CONFIG_SYS_NONCACHED_MEMORY
657 #ifdef CONFIG_ADDR_MAP
660 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV) || \
661 defined(CONFIG_SANDBOX)
662 board_init, /* Setup chipselects */
665 * TODO: printing of the clock inforamtion of the board is now
666 * implemented as part of bdinfo command. Currently only support for
667 * davinci SOC's is added. Remove this check once all the board
671 set_cpu_clk_info, /* Setup clock information */
673 #ifdef CONFIG_EFI_LOADER
677 #ifdef CONFIG_FSP_VERSION2
685 #if CONFIG_IS_ENABLED(WDT)
688 INIT_FUNC_WATCHDOG_RESET
689 #if defined(CONFIG_NEEDS_MANUAL_RELOC) && defined(CONFIG_BLOCK_CACHE)
692 #ifdef CONFIG_NEEDS_MANUAL_RELOC
693 initr_manual_reloc_cmdtable,
696 #if defined(CONFIG_BOARD_EARLY_INIT_R)
699 INIT_FUNC_WATCHDOG_RESET
703 INIT_FUNC_WATCHDOG_RESET
704 #if defined(CONFIG_PCI_INIT_R) && defined(CONFIG_SYS_EARLY_PCI_INIT)
706 * Do early PCI configuration _before_ the flash gets initialised,
707 * because PCU resources are crucial for flash access on some boards.
711 #ifdef CONFIG_ARCH_EARLY_INIT_R
715 #ifdef CONFIG_MTD_NOR_FLASH
718 INIT_FUNC_WATCHDOG_RESET
719 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
720 /* initialize higher level parts of CPU like time base and timers */
723 #ifdef CONFIG_CMD_NAND
726 #ifdef CONFIG_CMD_ONENAND
735 #ifdef CONFIG_PVBLOCK
739 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
740 initr_malloc_bootparams,
742 INIT_FUNC_WATCHDOG_RESET
743 cpu_secondary_init_r,
744 #if defined(CONFIG_ID_EEPROM)
745 mac_read_from_eeprom,
747 INIT_FUNC_WATCHDOG_RESET
748 #if defined(CONFIG_PCI_INIT_R) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
750 * Do pci configuration
759 console_init_r, /* fully init console as a device */
760 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
764 #ifdef CONFIG_ARCH_MISC_INIT
765 arch_misc_init, /* miscellaneous arch-dependent init */
767 #ifdef CONFIG_MISC_INIT_R
768 misc_init_r, /* miscellaneous platform-dependent init */
770 INIT_FUNC_WATCHDOG_RESET
771 #ifdef CONFIG_CMD_KGDB
775 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K)
776 timer_init, /* initialize timer */
778 #if defined(CONFIG_LED_STATUS)
781 /* PPC has a udelay(20) here dating from 2002. Why? */
782 #ifdef CONFIG_CMD_NET
785 #if defined(CONFIG_GPIO_HOG)
788 #ifdef CONFIG_BOARD_LATE_INIT
791 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
792 INIT_FUNC_WATCHDOG_RESET
795 #ifdef CONFIG_BITBANGMII
798 #ifdef CONFIG_PCI_ENDPOINT
801 #ifdef CONFIG_CMD_NET
802 INIT_FUNC_WATCHDOG_RESET
808 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
811 #ifdef CONFIG_LAST_STAGE_INIT
812 INIT_FUNC_WATCHDOG_RESET
814 * Some parts can be only initialized if all others (like
815 * Interrupts) are up and running (i.e. the PC-style ISA
820 #if defined(CONFIG_PRAM)
823 #ifdef CONFIG_EFI_SETUP_EARLY
824 (init_fnc_t)efi_init_obj_list,
829 void board_init_r(gd_t *new_gd, ulong dest_addr)
832 * Set up the new global data pointer. So far only x86 does this
834 * TODO(sjg@chromium.org): Consider doing this for all archs, or
835 * dropping the new_gd parameter.
837 if (CONFIG_IS_ENABLED(X86_64) && !IS_ENABLED(CONFIG_EFI_APP))
838 arch_setup_gd(new_gd);
840 #ifdef CONFIG_NEEDS_MANUAL_RELOC
844 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
847 gd->flags &= ~GD_FLG_LOG_READY;
849 #ifdef CONFIG_NEEDS_MANUAL_RELOC
850 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
851 init_sequence_r[i] += gd->reloc_off;
854 if (initcall_run_list(init_sequence_r))
857 /* NOTREACHED - run_main_loop() does not return */