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>
55 #include <status_led.h>
56 #include <stdio_dev.h>
63 #ifdef CONFIG_ADDR_MAP
66 #include <asm/sections.h>
68 #include <linux/compiler.h>
69 #include <linux/err.h>
70 #include <efi_loader.h>
72 #if defined(CONFIG_GPIO_HOG)
76 DECLARE_GLOBAL_DATA_PTR;
78 ulong monitor_flash_len;
80 __weak int board_flash_wp_on(void)
83 * Most flashes can't be detected when write protection is enabled,
84 * so provide a way to let U-Boot gracefully ignore write protected
90 __weak void cpu_secondary_init_r(void)
94 static int initr_secondary_cpu(void)
97 * after non-volatile devices & environment is setup and cpu code have
98 * another round to deal with any initialization that might require
99 * full access to the environment or loading of some image (firmware)
100 * from a non-volatile device
102 /* TODO: maybe define this for all archs? */
103 cpu_secondary_init_r();
108 static int initr_trace(void)
111 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
117 static int initr_reloc(void)
119 /* tell others: relocation done */
120 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
127 * Some of these functions are needed purely because the functions they
128 * call return void. If we change them to return 0, these stubs can go away.
130 static int initr_caches(void)
138 __weak int fixup_cpu(void)
143 static int initr_reloc_global_data(void)
146 monitor_flash_len = _end - __image_copy_start;
147 #elif defined(CONFIG_NDS32) || defined(CONFIG_RISCV)
148 monitor_flash_len = (ulong)&_end - (ulong)&_start;
149 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
150 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
152 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
154 * The gd->cpu pointer is set to an address in flash before relocation.
155 * We need to update it to point to the same CPU entry in RAM.
156 * TODO: why not just add gd->reloc_ofs?
158 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
161 * If we didn't know the cpu mask & # cores, we can save them of
162 * now rather than 'computing' them constantly
166 #ifdef CONFIG_SYS_RELOC_GD_ENV_ADDR
168 * Relocate the early env_addr pointer unless we know it is not inside
169 * the binary. Some systems need this and for the rest, it doesn't hurt.
171 gd->env_addr += gd->reloc_off;
173 #ifdef CONFIG_OF_EMBED
175 * The fdt_blob needs to be moved to new relocation address
176 * incase of FDT blob is embedded with in image
178 gd->fdt_blob += gd->reloc_off;
180 #ifdef CONFIG_EFI_LOADER
182 * On the ARM architecture gd is mapped to a fixed register (r9 or x18).
183 * As this register may be overwritten by an EFI payload we save it here
184 * and restore it on every callback entered.
188 efi_runtime_relocate(gd->relocaddr, NULL);
194 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
195 static int initr_trap(void)
198 * Setup trap handlers
200 #if defined(CONFIG_PPC)
201 trap_init(gd->relocaddr);
203 trap_init(CONFIG_SYS_SDRAM_BASE);
209 #ifdef CONFIG_ADDR_MAP
210 static int initr_addr_map(void)
219 static int initr_post_backlog(void)
221 post_output_backlog();
226 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
227 static int initr_unlock_ram_in_cache(void)
229 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
234 #ifdef CONFIG_PCI_ENDPOINT
235 static int initr_pci_ep(void)
244 static int initr_pci(void)
246 if (IS_ENABLED(CONFIG_PCI_INIT_R))
253 static int initr_barrier(void)
256 /* TODO: Can we not use dmb() macros for this? */
262 static int initr_malloc(void)
266 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
267 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
268 gd->malloc_ptr / 1024);
270 /* The malloc area is immediately below the monitor copy in DRAM */
272 * This value MUST match the value of gd->start_addr_sp in board_f.c:
273 * reserve_noncached().
275 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
276 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
281 static int initr_console_record(void)
283 #if defined(CONFIG_CONSOLE_RECORD)
284 return console_record_init();
290 #ifdef CONFIG_SYS_NONCACHED_MEMORY
291 static int initr_noncached(void)
298 #ifdef CONFIG_OF_LIVE
299 static int initr_of_live(void)
303 bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live");
304 ret = of_live_build(gd->fdt_blob, (struct device_node **)&gd->of_root);
305 bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE);
314 static int initr_dm(void)
318 /* Save the pre-reloc driver model and start a new one */
319 gd->dm_root_f = gd->dm_root;
324 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_R, "dm_r");
325 ret = dm_init_and_scan(false);
326 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_R);
334 static int initr_dm_devices(void)
338 if (IS_ENABLED(CONFIG_TIMER_EARLY)) {
339 ret = dm_timer_init();
347 static int initr_bootstage(void)
349 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
354 __weak int power_init_board(void)
359 static int initr_announce(void)
361 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
365 #ifdef CONFIG_NEEDS_MANUAL_RELOC
366 static int initr_manual_reloc_cmdtable(void)
368 fixup_cmdtable(ll_entry_start(struct cmd_tbl, cmd),
369 ll_entry_count(struct cmd_tbl, cmd));
374 static int initr_binman(void)
376 if (!CONFIG_IS_ENABLED(BINMAN_FDT))
379 return binman_init();
382 #if defined(CONFIG_MTD_NOR_FLASH)
383 __weak int is_flash_available(void)
388 static int initr_flash(void)
390 ulong flash_size = 0;
391 struct bd_info *bd = gd->bd;
393 if (!is_flash_available())
398 if (board_flash_wp_on())
399 printf("Uninitialized - Write Protect On\n");
401 flash_size = flash_init();
403 print_size(flash_size, "");
404 #ifdef CONFIG_SYS_FLASH_CHECKSUM
406 * Compute and print flash CRC if flashchecksum is set to 'y'
408 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
410 if (env_get_yesno("flashchecksum") == 1) {
411 const uchar *flash_base = (const uchar *)CONFIG_SYS_FLASH_BASE;
413 printf(" CRC: %08X", crc32(0,
417 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
420 /* update start of FLASH memory */
421 #ifdef CONFIG_SYS_FLASH_BASE
422 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
424 /* size of FLASH memory (final value) */
425 bd->bi_flashsize = flash_size;
427 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
428 /* Make a update of the Memctrl. */
429 update_flash_size(flash_size);
432 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
433 /* flash mapped at end of memory map */
434 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
435 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
436 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
442 #ifdef CONFIG_CMD_NAND
443 /* go init the NAND */
444 static int initr_nand(void)
448 printf("%lu MiB\n", nand_size() / 1024);
453 #if defined(CONFIG_CMD_ONENAND)
454 /* go init the NAND */
455 static int initr_onenand(void)
464 static int initr_mmc(void)
467 mmc_initialize(gd->bd);
473 static int initr_xen(void)
480 #ifdef CONFIG_PVBLOCK
481 static int initr_pvblock(void)
490 * Tell if it's OK to load the environment early in boot.
492 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
493 * if this is OK (defaulting to saying it's OK).
495 * NOTE: Loading the environment early can be a bad idea if security is
496 * important, since no verification is done on the environment.
498 * @return 0 if environment should not be loaded, !=0 if it is ok to load
500 static int should_load_env(void)
502 if (IS_ENABLED(CONFIG_OF_CONTROL))
503 return fdtdec_get_config_int(gd->fdt_blob,
504 "load-environment", 1);
506 if (IS_ENABLED(CONFIG_DELAY_ENVIRONMENT))
512 static int initr_env(void)
514 /* initialize environment */
515 if (should_load_env())
518 env_set_default(NULL, 0);
520 if (IS_ENABLED(CONFIG_OF_CONTROL))
521 env_set_hex("fdtcontroladdr",
522 (unsigned long)map_to_sysmem(gd->fdt_blob));
524 /* Initialize from environment */
525 image_load_addr = env_get_ulong("loadaddr", 16, image_load_addr);
530 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
531 static int initr_malloc_bootparams(void)
533 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
534 if (!gd->bd->bi_boot_params) {
535 puts("WARNING: Cannot allocate space for boot parameters\n");
542 static int initr_jumptable(void)
548 #if defined(CONFIG_API)
549 static int initr_api(void)
557 #ifdef CONFIG_CMD_NET
558 static int initr_ethaddr(void)
560 struct bd_info *bd = gd->bd;
562 /* kept around for legacy kernels only ... ignore the next section */
563 eth_env_get_enetaddr("ethaddr", bd->bi_enetaddr);
567 #endif /* CONFIG_CMD_NET */
569 #ifdef CONFIG_CMD_KGDB
570 static int initr_kgdb(void)
578 #if defined(CONFIG_LED_STATUS)
579 static int initr_status_led(void)
581 #if defined(CONFIG_LED_STATUS_BOOT)
582 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING);
590 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
591 static int initr_scsi(void)
601 #ifdef CONFIG_BITBANGMII
602 static int initr_bbmii(void)
609 #ifdef CONFIG_CMD_NET
610 static int initr_net(void)
614 #if defined(CONFIG_RESET_PHY_R)
615 debug("Reset Ethernet PHY\n");
623 static int initr_post(void)
625 post_run(NULL, POST_RAM | post_bootmode_get(0));
630 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
631 static int initr_ide(void)
634 #if defined(CONFIG_START_IDE)
635 if (board_start_ide())
644 #if defined(CONFIG_PRAM)
646 * Export available size of memory for Linux, taking into account the
647 * protected RAM at top of memory
654 pram = env_get_ulong("pram", 10, CONFIG_PRAM);
655 sprintf(memsz, "%ldk", (long int)((gd->ram_size / 1024) - pram));
656 env_set("mem", memsz);
662 static int run_main_loop(void)
664 #ifdef CONFIG_SANDBOX
665 sandbox_main_loop_init();
667 /* main_loop() can return to retry autoboot, if so just run it again */
674 * We hope to remove most of the driver-related init and do it if/when
675 * the driver is later used.
677 * TODO: perhaps reset the watchdog in the initcall function after each call?
679 static init_fnc_t init_sequence_r[] = {
682 /* TODO: could x86/PPC have this also perhaps? */
685 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
686 * A temporary mapping of IFC high region is since removed,
687 * so environmental variables in NOR flash is not available
688 * until board_init() is called below to remap IFC to high
692 initr_reloc_global_data,
693 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
694 initr_unlock_ram_in_cache,
699 initr_bootstage, /* Needs malloc() but has its own timer */
700 initr_console_record,
701 #ifdef CONFIG_SYS_NONCACHED_MEMORY
704 #ifdef CONFIG_OF_LIVE
710 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV) || \
711 defined(CONFIG_SANDBOX)
712 board_init, /* Setup chipselects */
715 * TODO: printing of the clock inforamtion of the board is now
716 * implemented as part of bdinfo command. Currently only support for
717 * davinci SOC's is added. Remove this check once all the board
721 set_cpu_clk_info, /* Setup clock information */
723 #ifdef CONFIG_EFI_LOADER
727 #ifdef CONFIG_FSP_VERSION2
734 #if CONFIG_IS_ENABLED(WDT)
737 INIT_FUNC_WATCHDOG_RESET
738 #if defined(CONFIG_NEEDS_MANUAL_RELOC) && defined(CONFIG_BLOCK_CACHE)
741 #ifdef CONFIG_NEEDS_MANUAL_RELOC
742 initr_manual_reloc_cmdtable,
744 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
747 #ifdef CONFIG_ADDR_MAP
750 #if defined(CONFIG_BOARD_EARLY_INIT_R)
753 INIT_FUNC_WATCHDOG_RESET
757 INIT_FUNC_WATCHDOG_RESET
758 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
760 * Do early PCI configuration _before_ the flash gets initialised,
761 * because PCU resources are crucial for flash access on some boards.
765 #ifdef CONFIG_ARCH_EARLY_INIT_R
769 #ifdef CONFIG_MTD_NOR_FLASH
772 INIT_FUNC_WATCHDOG_RESET
773 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
774 /* initialize higher level parts of CPU like time base and timers */
777 #ifdef CONFIG_CMD_NAND
780 #ifdef CONFIG_CMD_ONENAND
789 #ifdef CONFIG_PVBLOCK
793 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
794 initr_malloc_bootparams,
796 INIT_FUNC_WATCHDOG_RESET
798 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
799 mac_read_from_eeprom,
801 INIT_FUNC_WATCHDOG_RESET
802 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
804 * Do pci configuration
813 console_init_r, /* fully init console as a device */
814 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
818 #ifdef CONFIG_ARCH_MISC_INIT
819 arch_misc_init, /* miscellaneous arch-dependent init */
821 #ifdef CONFIG_MISC_INIT_R
822 misc_init_r, /* miscellaneous platform-dependent init */
824 INIT_FUNC_WATCHDOG_RESET
825 #ifdef CONFIG_CMD_KGDB
829 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K)
830 timer_init, /* initialize timer */
832 #if defined(CONFIG_LED_STATUS)
835 /* PPC has a udelay(20) here dating from 2002. Why? */
836 #ifdef CONFIG_CMD_NET
839 #if defined(CONFIG_GPIO_HOG)
842 #ifdef CONFIG_BOARD_LATE_INIT
845 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
846 INIT_FUNC_WATCHDOG_RESET
849 #ifdef CONFIG_BITBANGMII
852 #ifdef CONFIG_PCI_ENDPOINT
855 #ifdef CONFIG_CMD_NET
856 INIT_FUNC_WATCHDOG_RESET
862 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
865 #ifdef CONFIG_LAST_STAGE_INIT
866 INIT_FUNC_WATCHDOG_RESET
868 * Some parts can be only initialized if all others (like
869 * Interrupts) are up and running (i.e. the PC-style ISA
874 #ifdef CONFIG_CMD_BEDBUG
875 INIT_FUNC_WATCHDOG_RESET
878 #if defined(CONFIG_PRAM)
884 void board_init_r(gd_t *new_gd, ulong dest_addr)
887 * Set up the new global data pointer. So far only x86 does this
889 * TODO(sjg@chromium.org): Consider doing this for all archs, or
890 * dropping the new_gd parameter.
892 #if CONFIG_IS_ENABLED(X86_64)
893 arch_setup_gd(new_gd);
896 #ifdef CONFIG_NEEDS_MANUAL_RELOC
900 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
903 gd->flags &= ~GD_FLG_LOG_READY;
905 #ifdef CONFIG_NEEDS_MANUAL_RELOC
906 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
907 init_sequence_r[i] += gd->reloc_off;
910 if (initcall_run_list(init_sequence_r))
913 /* NOTREACHED - run_main_loop() does not return */