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 int cpu_secondary_init_r(void)
99 static int initr_trace(void)
102 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
108 static int initr_reloc(void)
110 /* tell others: relocation done */
111 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
118 * Some of these functions are needed purely because the functions they
119 * call return void. If we change them to return 0, these stubs can go away.
121 static int initr_caches(void)
129 __weak int fixup_cpu(void)
134 static int initr_reloc_global_data(void)
137 monitor_flash_len = _end - __image_copy_start;
138 #elif defined(CONFIG_NDS32) || defined(CONFIG_RISCV)
139 monitor_flash_len = (ulong)&_end - (ulong)&_start;
140 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
141 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
143 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
145 * The gd->cpu pointer is set to an address in flash before relocation.
146 * We need to update it to point to the same CPU entry in RAM.
147 * TODO: why not just add gd->reloc_ofs?
149 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
152 * If we didn't know the cpu mask & # cores, we can save them of
153 * now rather than 'computing' them constantly
157 #ifdef CONFIG_SYS_RELOC_GD_ENV_ADDR
159 * Relocate the early env_addr pointer unless we know it is not inside
160 * the binary. Some systems need this and for the rest, it doesn't hurt.
162 gd->env_addr += gd->reloc_off;
164 #ifdef CONFIG_OF_EMBED
166 * The fdt_blob needs to be moved to new relocation address
167 * incase of FDT blob is embedded with in image
169 gd->fdt_blob += gd->reloc_off;
171 #ifdef CONFIG_EFI_LOADER
173 * On the ARM architecture gd is mapped to a fixed register (r9 or x18).
174 * As this register may be overwritten by an EFI payload we save it here
175 * and restore it on every callback entered.
179 efi_runtime_relocate(gd->relocaddr, NULL);
185 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
186 static int initr_trap(void)
189 * Setup trap handlers
191 #if defined(CONFIG_PPC)
192 trap_init(gd->relocaddr);
194 trap_init(CONFIG_SYS_SDRAM_BASE);
200 #ifdef CONFIG_ADDR_MAP
201 static int initr_addr_map(void)
209 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
210 static int initr_unlock_ram_in_cache(void)
212 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
218 static int initr_pci(void)
220 if (IS_ENABLED(CONFIG_PCI_INIT_R))
227 static int initr_barrier(void)
230 /* TODO: Can we not use dmb() macros for this? */
236 static int initr_malloc(void)
240 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
241 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
242 gd->malloc_ptr / 1024);
244 /* The malloc area is immediately below the monitor copy in DRAM */
246 * This value MUST match the value of gd->start_addr_sp in board_f.c:
247 * reserve_noncached().
249 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
250 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
255 #ifdef CONFIG_SYS_NONCACHED_MEMORY
256 static int initr_noncached(void)
263 static int initr_of_live(void)
265 if (CONFIG_IS_ENABLED(OF_LIVE)) {
268 bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live");
269 ret = of_live_build(gd->fdt_blob,
270 (struct device_node **)gd_of_root_ptr());
271 bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE);
280 static int initr_dm(void)
284 /* Save the pre-reloc driver model and start a new one */
285 gd->dm_root_f = gd->dm_root;
290 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_R, "dm_r");
291 ret = dm_init_and_scan(false);
292 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_R);
300 static int initr_dm_devices(void)
304 if (IS_ENABLED(CONFIG_TIMER_EARLY)) {
305 ret = dm_timer_init();
310 if (IS_ENABLED(CONFIG_MULTIPLEXER)) {
312 * Initialize the multiplexer controls to their default state.
313 * This must be done early as other drivers may unknowingly
324 static int initr_bootstage(void)
326 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
331 __weak int power_init_board(void)
336 static int initr_announce(void)
338 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
342 #ifdef CONFIG_NEEDS_MANUAL_RELOC
343 static int initr_manual_reloc_cmdtable(void)
345 fixup_cmdtable(ll_entry_start(struct cmd_tbl, cmd),
346 ll_entry_count(struct cmd_tbl, cmd));
351 static int initr_binman(void)
353 if (!CONFIG_IS_ENABLED(BINMAN_FDT))
356 return binman_init();
359 #if defined(CONFIG_MTD_NOR_FLASH)
360 __weak int is_flash_available(void)
365 static int initr_flash(void)
367 ulong flash_size = 0;
368 struct bd_info *bd = gd->bd;
370 if (!is_flash_available())
375 if (board_flash_wp_on())
376 printf("Uninitialized - Write Protect On\n");
378 flash_size = flash_init();
380 print_size(flash_size, "");
381 #ifdef CONFIG_SYS_FLASH_CHECKSUM
383 * Compute and print flash CRC if flashchecksum is set to 'y'
385 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
387 if (env_get_yesno("flashchecksum") == 1) {
388 const uchar *flash_base = (const uchar *)CONFIG_SYS_FLASH_BASE;
390 printf(" CRC: %08X", crc32(0,
394 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
397 /* update start of FLASH memory */
398 #ifdef CONFIG_SYS_FLASH_BASE
399 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
401 /* size of FLASH memory (final value) */
402 bd->bi_flashsize = flash_size;
404 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
405 /* Make a update of the Memctrl. */
406 update_flash_size(flash_size);
409 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
410 /* flash mapped at end of memory map */
411 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
412 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
413 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
419 #ifdef CONFIG_CMD_NAND
420 /* go init the NAND */
421 static int initr_nand(void)
425 printf("%lu MiB\n", nand_size() / 1024);
430 #if defined(CONFIG_CMD_ONENAND)
431 /* go init the NAND */
432 static int initr_onenand(void)
441 static int initr_mmc(void)
444 mmc_initialize(gd->bd);
450 static int initr_xen(void)
457 #ifdef CONFIG_PVBLOCK
458 static int initr_pvblock(void)
467 * Tell if it's OK to load the environment early in boot.
469 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
470 * if this is OK (defaulting to saying it's OK).
472 * NOTE: Loading the environment early can be a bad idea if security is
473 * important, since no verification is done on the environment.
475 * @return 0 if environment should not be loaded, !=0 if it is ok to load
477 static int should_load_env(void)
479 if (IS_ENABLED(CONFIG_OF_CONTROL))
480 return fdtdec_get_config_int(gd->fdt_blob,
481 "load-environment", 1);
483 if (IS_ENABLED(CONFIG_DELAY_ENVIRONMENT))
489 static int initr_env(void)
491 /* initialize environment */
492 if (should_load_env())
495 env_set_default(NULL, 0);
497 if (IS_ENABLED(CONFIG_OF_CONTROL))
498 env_set_hex("fdtcontroladdr",
499 (unsigned long)map_to_sysmem(gd->fdt_blob));
501 /* Initialize from environment */
502 image_load_addr = env_get_ulong("loadaddr", 16, image_load_addr);
507 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
508 static int initr_malloc_bootparams(void)
510 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
511 if (!gd->bd->bi_boot_params) {
512 puts("WARNING: Cannot allocate space for boot parameters\n");
519 static int initr_jumptable(void)
525 #if defined(CONFIG_API)
526 static int initr_api(void)
534 #ifdef CONFIG_CMD_NET
535 static int initr_ethaddr(void)
537 struct bd_info *bd = gd->bd;
539 /* kept around for legacy kernels only ... ignore the next section */
540 eth_env_get_enetaddr("ethaddr", bd->bi_enetaddr);
544 #endif /* CONFIG_CMD_NET */
546 #ifdef CONFIG_CMD_KGDB
547 static int initr_kgdb(void)
555 #if defined(CONFIG_LED_STATUS)
556 static int initr_status_led(void)
558 #if defined(CONFIG_LED_STATUS_BOOT)
559 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING);
567 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
568 static int initr_scsi(void)
578 #ifdef CONFIG_BITBANGMII
579 static int initr_bbmii(void)
586 #ifdef CONFIG_CMD_NET
587 static int initr_net(void)
591 #if defined(CONFIG_RESET_PHY_R)
592 debug("Reset Ethernet PHY\n");
600 static int initr_post(void)
602 post_run(NULL, POST_RAM | post_bootmode_get(0));
607 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
608 static int initr_ide(void)
611 #if defined(CONFIG_START_IDE)
612 if (board_start_ide())
621 #if defined(CONFIG_PRAM)
623 * Export available size of memory for Linux, taking into account the
624 * protected RAM at top of memory
631 pram = env_get_ulong("pram", 10, CONFIG_PRAM);
632 sprintf(memsz, "%ldk", (long int)((gd->ram_size / 1024) - pram));
633 env_set("mem", memsz);
639 static int run_main_loop(void)
641 #ifdef CONFIG_SANDBOX
642 sandbox_main_loop_init();
644 /* main_loop() can return to retry autoboot, if so just run it again */
651 * We hope to remove most of the driver-related init and do it if/when
652 * the driver is later used.
654 * TODO: perhaps reset the watchdog in the initcall function after each call?
656 static init_fnc_t init_sequence_r[] = {
659 /* TODO: could x86/PPC have this also perhaps? */
662 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
663 * A temporary mapping of IFC high region is since removed,
664 * so environmental variables in NOR flash is not available
665 * until board_init() is called below to remap IFC to high
669 initr_reloc_global_data,
670 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
671 initr_unlock_ram_in_cache,
676 initr_bootstage, /* Needs malloc() but has its own timer */
677 #if defined(CONFIG_CONSOLE_RECORD)
680 #ifdef CONFIG_SYS_NONCACHED_MEMORY
687 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV) || \
688 defined(CONFIG_SANDBOX)
689 board_init, /* Setup chipselects */
692 * TODO: printing of the clock inforamtion of the board is now
693 * implemented as part of bdinfo command. Currently only support for
694 * davinci SOC's is added. Remove this check once all the board
698 set_cpu_clk_info, /* Setup clock information */
700 #ifdef CONFIG_EFI_LOADER
704 #ifdef CONFIG_FSP_VERSION2
711 #if CONFIG_IS_ENABLED(WDT)
714 INIT_FUNC_WATCHDOG_RESET
715 #if defined(CONFIG_NEEDS_MANUAL_RELOC) && defined(CONFIG_BLOCK_CACHE)
718 #ifdef CONFIG_NEEDS_MANUAL_RELOC
719 initr_manual_reloc_cmdtable,
721 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
724 #ifdef CONFIG_ADDR_MAP
727 #if defined(CONFIG_BOARD_EARLY_INIT_R)
730 INIT_FUNC_WATCHDOG_RESET
734 INIT_FUNC_WATCHDOG_RESET
735 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
737 * Do early PCI configuration _before_ the flash gets initialised,
738 * because PCU resources are crucial for flash access on some boards.
742 #ifdef CONFIG_ARCH_EARLY_INIT_R
746 #ifdef CONFIG_MTD_NOR_FLASH
749 INIT_FUNC_WATCHDOG_RESET
750 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
751 /* initialize higher level parts of CPU like time base and timers */
754 #ifdef CONFIG_CMD_NAND
757 #ifdef CONFIG_CMD_ONENAND
766 #ifdef CONFIG_PVBLOCK
770 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
771 initr_malloc_bootparams,
773 INIT_FUNC_WATCHDOG_RESET
774 cpu_secondary_init_r,
775 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
776 mac_read_from_eeprom,
778 INIT_FUNC_WATCHDOG_RESET
779 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
781 * Do pci configuration
790 console_init_r, /* fully init console as a device */
791 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
795 #ifdef CONFIG_ARCH_MISC_INIT
796 arch_misc_init, /* miscellaneous arch-dependent init */
798 #ifdef CONFIG_MISC_INIT_R
799 misc_init_r, /* miscellaneous platform-dependent init */
801 INIT_FUNC_WATCHDOG_RESET
802 #ifdef CONFIG_CMD_KGDB
806 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K)
807 timer_init, /* initialize timer */
809 #if defined(CONFIG_LED_STATUS)
812 /* PPC has a udelay(20) here dating from 2002. Why? */
813 #ifdef CONFIG_CMD_NET
816 #if defined(CONFIG_GPIO_HOG)
819 #ifdef CONFIG_BOARD_LATE_INIT
822 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
823 INIT_FUNC_WATCHDOG_RESET
826 #ifdef CONFIG_BITBANGMII
829 #ifdef CONFIG_PCI_ENDPOINT
832 #ifdef CONFIG_CMD_NET
833 INIT_FUNC_WATCHDOG_RESET
839 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
842 #ifdef CONFIG_LAST_STAGE_INIT
843 INIT_FUNC_WATCHDOG_RESET
845 * Some parts can be only initialized if all others (like
846 * Interrupts) are up and running (i.e. the PC-style ISA
851 #ifdef CONFIG_CMD_BEDBUG
852 INIT_FUNC_WATCHDOG_RESET
855 #if defined(CONFIG_PRAM)
858 #ifdef CONFIG_EFI_SETUP_EARLY
859 (init_fnc_t)efi_init_obj_list,
864 void board_init_r(gd_t *new_gd, ulong dest_addr)
867 * Set up the new global data pointer. So far only x86 does this
869 * TODO(sjg@chromium.org): Consider doing this for all archs, or
870 * dropping the new_gd parameter.
872 #if CONFIG_IS_ENABLED(X86_64)
873 arch_setup_gd(new_gd);
876 #ifdef CONFIG_NEEDS_MANUAL_RELOC
880 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
883 gd->flags &= ~GD_FLG_LOG_READY;
885 #ifdef CONFIG_NEEDS_MANUAL_RELOC
886 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
887 init_sequence_r[i] += gd->reloc_off;
890 if (initcall_run_list(init_sequence_r))
893 /* NOTREACHED - run_main_loop() does not return */