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 */
217 static int initr_barrier(void)
220 /* TODO: Can we not use dmb() macros for this? */
226 static int initr_malloc(void)
230 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
231 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
232 gd->malloc_ptr / 1024);
234 /* The malloc area is immediately below the monitor copy in DRAM */
236 * This value MUST match the value of gd->start_addr_sp in board_f.c:
237 * reserve_noncached().
239 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
240 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
245 static int initr_of_live(void)
247 if (CONFIG_IS_ENABLED(OF_LIVE)) {
250 bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live");
251 ret = of_live_build(gd->fdt_blob,
252 (struct device_node **)gd_of_root_ptr());
253 bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE);
262 static int initr_dm(void)
266 /* Save the pre-reloc driver model and start a new one */
267 gd->dm_root_f = gd->dm_root;
272 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_R, "dm_r");
273 ret = dm_init_and_scan(false);
274 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_R);
282 static int initr_dm_devices(void)
286 if (IS_ENABLED(CONFIG_TIMER_EARLY)) {
287 ret = dm_timer_init();
292 if (IS_ENABLED(CONFIG_MULTIPLEXER)) {
294 * Initialize the multiplexer controls to their default state.
295 * This must be done early as other drivers may unknowingly
306 static int initr_bootstage(void)
308 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
313 __weak int power_init_board(void)
318 static int initr_announce(void)
320 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
324 #ifdef CONFIG_NEEDS_MANUAL_RELOC
325 static int initr_manual_reloc_cmdtable(void)
327 fixup_cmdtable(ll_entry_start(struct cmd_tbl, cmd),
328 ll_entry_count(struct cmd_tbl, cmd));
333 static int initr_binman(void)
335 if (!CONFIG_IS_ENABLED(BINMAN_FDT))
338 return binman_init();
341 #if defined(CONFIG_MTD_NOR_FLASH)
342 __weak int is_flash_available(void)
347 static int initr_flash(void)
349 ulong flash_size = 0;
350 struct bd_info *bd = gd->bd;
352 if (!is_flash_available())
357 if (board_flash_wp_on())
358 printf("Uninitialized - Write Protect On\n");
360 flash_size = flash_init();
362 print_size(flash_size, "");
363 #ifdef CONFIG_SYS_FLASH_CHECKSUM
365 * Compute and print flash CRC if flashchecksum is set to 'y'
367 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
369 if (env_get_yesno("flashchecksum") == 1) {
370 const uchar *flash_base = (const uchar *)CONFIG_SYS_FLASH_BASE;
372 printf(" CRC: %08X", crc32(0,
376 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
379 /* update start of FLASH memory */
380 #ifdef CONFIG_SYS_FLASH_BASE
381 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
383 /* size of FLASH memory (final value) */
384 bd->bi_flashsize = flash_size;
386 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
387 /* Make a update of the Memctrl. */
388 update_flash_size(flash_size);
391 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
392 /* flash mapped at end of memory map */
393 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
394 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
395 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
401 #ifdef CONFIG_CMD_NAND
402 /* go init the NAND */
403 static int initr_nand(void)
407 printf("%lu MiB\n", nand_size() / 1024);
412 #if defined(CONFIG_CMD_ONENAND)
413 /* go init the NAND */
414 static int initr_onenand(void)
423 static int initr_mmc(void)
426 mmc_initialize(gd->bd);
431 #ifdef CONFIG_PVBLOCK
432 static int initr_pvblock(void)
441 * Tell if it's OK to load the environment early in boot.
443 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
444 * if this is OK (defaulting to saying it's OK).
446 * NOTE: Loading the environment early can be a bad idea if security is
447 * important, since no verification is done on the environment.
449 * @return 0 if environment should not be loaded, !=0 if it is ok to load
451 static int should_load_env(void)
453 if (IS_ENABLED(CONFIG_OF_CONTROL))
454 return fdtdec_get_config_int(gd->fdt_blob,
455 "load-environment", 1);
457 if (IS_ENABLED(CONFIG_DELAY_ENVIRONMENT))
463 static int initr_env(void)
465 /* initialize environment */
466 if (should_load_env())
469 env_set_default(NULL, 0);
471 if (IS_ENABLED(CONFIG_OF_CONTROL))
472 env_set_hex("fdtcontroladdr",
473 (unsigned long)map_to_sysmem(gd->fdt_blob));
475 /* Initialize from environment */
476 image_load_addr = env_get_ulong("loadaddr", 16, image_load_addr);
481 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
482 static int initr_malloc_bootparams(void)
484 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
485 if (!gd->bd->bi_boot_params) {
486 puts("WARNING: Cannot allocate space for boot parameters\n");
493 #ifdef CONFIG_CMD_NET
494 static int initr_ethaddr(void)
496 struct bd_info *bd = gd->bd;
498 /* kept around for legacy kernels only ... ignore the next section */
499 eth_env_get_enetaddr("ethaddr", bd->bi_enetaddr);
503 #endif /* CONFIG_CMD_NET */
505 #ifdef CONFIG_CMD_KGDB
506 static int initr_kgdb(void)
514 #if defined(CONFIG_LED_STATUS)
515 static int initr_status_led(void)
517 #if defined(CONFIG_LED_STATUS_BOOT)
518 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING);
526 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
527 static int initr_scsi(void)
537 #ifdef CONFIG_BITBANGMII
538 static int initr_bbmii(void)
545 #ifdef CONFIG_CMD_NET
546 static int initr_net(void)
550 #if defined(CONFIG_RESET_PHY_R)
551 debug("Reset Ethernet PHY\n");
559 static int initr_post(void)
561 post_run(NULL, POST_RAM | post_bootmode_get(0));
566 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
567 static int initr_ide(void)
570 #if defined(CONFIG_START_IDE)
571 if (board_start_ide())
580 #if defined(CONFIG_PRAM)
582 * Export available size of memory for Linux, taking into account the
583 * protected RAM at top of memory
590 pram = env_get_ulong("pram", 10, CONFIG_PRAM);
591 sprintf(memsz, "%ldk", (long int)((gd->ram_size / 1024) - pram));
592 env_set("mem", memsz);
598 static int run_main_loop(void)
600 #ifdef CONFIG_SANDBOX
601 sandbox_main_loop_init();
603 /* main_loop() can return to retry autoboot, if so just run it again */
610 * We hope to remove most of the driver-related init and do it if/when
611 * the driver is later used.
613 * TODO: perhaps reset the watchdog in the initcall function after each call?
615 static init_fnc_t init_sequence_r[] = {
618 /* TODO: could x86/PPC have this also perhaps? */
621 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
622 * A temporary mapping of IFC high region is since removed,
623 * so environmental variables in NOR flash is not available
624 * until board_init() is called below to remap IFC to high
628 initr_reloc_global_data,
629 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
630 initr_unlock_ram_in_cache,
635 initr_bootstage, /* Needs malloc() but has its own timer */
636 #if defined(CONFIG_CONSOLE_RECORD)
639 #ifdef CONFIG_SYS_NONCACHED_MEMORY
646 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV) || \
647 defined(CONFIG_SANDBOX)
648 board_init, /* Setup chipselects */
651 * TODO: printing of the clock inforamtion of the board is now
652 * implemented as part of bdinfo command. Currently only support for
653 * davinci SOC's is added. Remove this check once all the board
657 set_cpu_clk_info, /* Setup clock information */
659 #ifdef CONFIG_EFI_LOADER
663 #ifdef CONFIG_FSP_VERSION2
670 #if CONFIG_IS_ENABLED(WDT)
673 INIT_FUNC_WATCHDOG_RESET
674 #if defined(CONFIG_NEEDS_MANUAL_RELOC) && defined(CONFIG_BLOCK_CACHE)
677 #ifdef CONFIG_NEEDS_MANUAL_RELOC
678 initr_manual_reloc_cmdtable,
680 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
683 #ifdef CONFIG_ADDR_MAP
686 #if defined(CONFIG_BOARD_EARLY_INIT_R)
689 INIT_FUNC_WATCHDOG_RESET
693 INIT_FUNC_WATCHDOG_RESET
694 #if defined(CONFIG_PCI_INIT_R) && defined(CONFIG_SYS_EARLY_PCI_INIT)
696 * Do early PCI configuration _before_ the flash gets initialised,
697 * because PCU resources are crucial for flash access on some boards.
701 #ifdef CONFIG_ARCH_EARLY_INIT_R
705 #ifdef CONFIG_MTD_NOR_FLASH
708 INIT_FUNC_WATCHDOG_RESET
709 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
710 /* initialize higher level parts of CPU like time base and timers */
713 #ifdef CONFIG_CMD_NAND
716 #ifdef CONFIG_CMD_ONENAND
725 #ifdef CONFIG_PVBLOCK
729 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
730 initr_malloc_bootparams,
732 INIT_FUNC_WATCHDOG_RESET
733 cpu_secondary_init_r,
734 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
735 mac_read_from_eeprom,
737 INIT_FUNC_WATCHDOG_RESET
738 #if defined(CONFIG_PCI_INIT_R) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
740 * Do pci configuration
749 console_init_r, /* fully init console as a device */
750 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
754 #ifdef CONFIG_ARCH_MISC_INIT
755 arch_misc_init, /* miscellaneous arch-dependent init */
757 #ifdef CONFIG_MISC_INIT_R
758 misc_init_r, /* miscellaneous platform-dependent init */
760 INIT_FUNC_WATCHDOG_RESET
761 #ifdef CONFIG_CMD_KGDB
765 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K)
766 timer_init, /* initialize timer */
768 #if defined(CONFIG_LED_STATUS)
771 /* PPC has a udelay(20) here dating from 2002. Why? */
772 #ifdef CONFIG_CMD_NET
775 #if defined(CONFIG_GPIO_HOG)
778 #ifdef CONFIG_BOARD_LATE_INIT
781 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
782 INIT_FUNC_WATCHDOG_RESET
785 #ifdef CONFIG_BITBANGMII
788 #ifdef CONFIG_PCI_ENDPOINT
791 #ifdef CONFIG_CMD_NET
792 INIT_FUNC_WATCHDOG_RESET
798 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
801 #ifdef CONFIG_LAST_STAGE_INIT
802 INIT_FUNC_WATCHDOG_RESET
804 * Some parts can be only initialized if all others (like
805 * Interrupts) are up and running (i.e. the PC-style ISA
810 #ifdef CONFIG_CMD_BEDBUG
811 INIT_FUNC_WATCHDOG_RESET
814 #if defined(CONFIG_PRAM)
817 #ifdef CONFIG_EFI_SETUP_EARLY
818 (init_fnc_t)efi_init_obj_list,
823 void board_init_r(gd_t *new_gd, ulong dest_addr)
826 * Set up the new global data pointer. So far only x86 does this
828 * TODO(sjg@chromium.org): Consider doing this for all archs, or
829 * dropping the new_gd parameter.
831 #if CONFIG_IS_ENABLED(X86_64)
832 arch_setup_gd(new_gd);
835 #ifdef CONFIG_NEEDS_MANUAL_RELOC
839 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
842 gd->flags &= ~GD_FLG_LOG_READY;
844 #ifdef CONFIG_NEEDS_MANUAL_RELOC
845 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
846 init_sequence_r[i] += gd->reloc_off;
849 if (initcall_run_list(init_sequence_r))
852 /* NOTREACHED - run_main_loop() does not return */