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>
26 /* TODO: can we just include all these headers whether needed or not? */
27 #if defined(CONFIG_CMD_BEDBUG)
28 #include <bedbug/type.h>
35 #include <env_internal.h>
40 #if defined(CONFIG_CMD_KGDB)
46 #ifdef CONFIG_BITBANGMII
53 #include <onenand_uboot.h>
57 #include <status_led.h>
58 #include <stdio_dev.h>
65 #ifdef CONFIG_ADDR_MAP
68 #include <asm/sections.h>
70 #include <linux/compiler.h>
71 #include <linux/err.h>
72 #include <efi_loader.h>
74 #if defined(CONFIG_GPIO_HOG)
77 #ifdef CONFIG_EFI_SETUP_EARLY
78 #include <efi_loader.h>
81 DECLARE_GLOBAL_DATA_PTR;
83 ulong monitor_flash_len;
85 __weak int board_flash_wp_on(void)
88 * Most flashes can't be detected when write protection is enabled,
89 * so provide a way to let U-Boot gracefully ignore write protected
95 __weak int cpu_secondary_init_r(void)
100 static int initr_trace(void)
103 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
109 static int initr_reloc(void)
111 /* tell others: relocation done */
112 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
119 * Some of these functions are needed purely because the functions they
120 * call return void. If we change them to return 0, these stubs can go away.
122 static int initr_caches(void)
130 __weak int fixup_cpu(void)
135 static int initr_reloc_global_data(void)
138 monitor_flash_len = _end - __image_copy_start;
139 #elif defined(CONFIG_NDS32) || defined(CONFIG_RISCV)
140 monitor_flash_len = (ulong)&_end - (ulong)&_start;
141 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
142 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
144 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
146 * The gd->cpu pointer is set to an address in flash before relocation.
147 * We need to update it to point to the same CPU entry in RAM.
148 * TODO: why not just add gd->reloc_ofs?
150 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
153 * If we didn't know the cpu mask & # cores, we can save them of
154 * now rather than 'computing' them constantly
158 #ifdef CONFIG_SYS_RELOC_GD_ENV_ADDR
160 * Relocate the early env_addr pointer unless we know it is not inside
161 * the binary. Some systems need this and for the rest, it doesn't hurt.
163 gd->env_addr += gd->reloc_off;
165 #ifdef CONFIG_OF_EMBED
167 * The fdt_blob needs to be moved to new relocation address
168 * incase of FDT blob is embedded with in image
170 gd->fdt_blob += gd->reloc_off;
172 #ifdef CONFIG_EFI_LOADER
174 * On the ARM architecture gd is mapped to a fixed register (r9 or x18).
175 * As this register may be overwritten by an EFI payload we save it here
176 * and restore it on every callback entered.
180 efi_runtime_relocate(gd->relocaddr, NULL);
186 __weak int arch_initr_trap(void)
191 #ifdef CONFIG_ADDR_MAP
192 static int initr_addr_map(void)
200 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
201 static int initr_unlock_ram_in_cache(void)
203 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
208 static int initr_barrier(void)
211 /* TODO: Can we not use dmb() macros for this? */
217 static int initr_malloc(void)
221 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
222 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
223 gd->malloc_ptr / 1024);
225 /* The malloc area is immediately below the monitor copy in DRAM */
227 * This value MUST match the value of gd->start_addr_sp in board_f.c:
228 * reserve_noncached().
230 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
231 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
236 static int initr_of_live(void)
238 if (CONFIG_IS_ENABLED(OF_LIVE)) {
241 bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live");
242 ret = of_live_build(gd->fdt_blob,
243 (struct device_node **)gd_of_root_ptr());
244 bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE);
253 static int initr_dm(void)
257 /* Save the pre-reloc driver model and start a new one */
258 gd->dm_root_f = gd->dm_root;
263 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_R, "dm_r");
264 ret = dm_init_and_scan(false);
265 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_R);
273 static int initr_dm_devices(void)
277 if (IS_ENABLED(CONFIG_TIMER_EARLY)) {
278 ret = dm_timer_init();
283 if (IS_ENABLED(CONFIG_MULTIPLEXER)) {
285 * Initialize the multiplexer controls to their default state.
286 * This must be done early as other drivers may unknowingly
297 static int initr_bootstage(void)
299 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
304 __weak int power_init_board(void)
309 static int initr_announce(void)
311 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
315 #ifdef CONFIG_NEEDS_MANUAL_RELOC
316 static int initr_manual_reloc_cmdtable(void)
318 fixup_cmdtable(ll_entry_start(struct cmd_tbl, cmd),
319 ll_entry_count(struct cmd_tbl, cmd));
324 static int initr_binman(void)
326 if (!CONFIG_IS_ENABLED(BINMAN_FDT))
329 return binman_init();
332 #if defined(CONFIG_MTD_NOR_FLASH)
333 __weak int is_flash_available(void)
338 static int initr_flash(void)
340 ulong flash_size = 0;
341 struct bd_info *bd = gd->bd;
343 if (!is_flash_available())
348 if (board_flash_wp_on())
349 printf("Uninitialized - Write Protect On\n");
351 flash_size = flash_init();
353 print_size(flash_size, "");
354 #ifdef CONFIG_SYS_FLASH_CHECKSUM
356 * Compute and print flash CRC if flashchecksum is set to 'y'
358 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
360 if (env_get_yesno("flashchecksum") == 1) {
361 const uchar *flash_base = (const uchar *)CONFIG_SYS_FLASH_BASE;
363 printf(" CRC: %08X", crc32(0,
367 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
370 /* update start of FLASH memory */
371 #ifdef CONFIG_SYS_FLASH_BASE
372 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
374 /* size of FLASH memory (final value) */
375 bd->bi_flashsize = flash_size;
377 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
378 /* Make a update of the Memctrl. */
379 update_flash_size(flash_size);
382 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
383 /* flash mapped at end of memory map */
384 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
385 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
386 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
392 #ifdef CONFIG_CMD_NAND
393 /* go init the NAND */
394 static int initr_nand(void)
398 printf("%lu MiB\n", nand_size() / 1024);
403 #if defined(CONFIG_CMD_ONENAND)
404 /* go init the NAND */
405 static int initr_onenand(void)
414 static int initr_mmc(void)
417 mmc_initialize(gd->bd);
422 #ifdef CONFIG_PVBLOCK
423 static int initr_pvblock(void)
432 * Tell if it's OK to load the environment early in boot.
434 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
435 * if this is OK (defaulting to saying it's OK).
437 * NOTE: Loading the environment early can be a bad idea if security is
438 * important, since no verification is done on the environment.
440 * @return 0 if environment should not be loaded, !=0 if it is ok to load
442 static int should_load_env(void)
444 if (IS_ENABLED(CONFIG_OF_CONTROL))
445 return fdtdec_get_config_int(gd->fdt_blob,
446 "load-environment", 1);
448 if (IS_ENABLED(CONFIG_DELAY_ENVIRONMENT))
454 static int initr_env(void)
456 /* initialize environment */
457 if (should_load_env())
460 env_set_default(NULL, 0);
464 if (IS_ENABLED(CONFIG_OF_CONTROL))
465 env_set_hex("fdtcontroladdr",
466 (unsigned long)map_to_sysmem(gd->fdt_blob));
468 /* Initialize from environment */
469 image_load_addr = env_get_ulong("loadaddr", 16, image_load_addr);
474 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
475 static int initr_malloc_bootparams(void)
477 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
478 if (!gd->bd->bi_boot_params) {
479 puts("WARNING: Cannot allocate space for boot parameters\n");
486 #ifdef CONFIG_CMD_NET
487 static int initr_ethaddr(void)
489 struct bd_info *bd = gd->bd;
491 /* kept around for legacy kernels only ... ignore the next section */
492 eth_env_get_enetaddr("ethaddr", bd->bi_enetaddr);
496 #endif /* CONFIG_CMD_NET */
498 #ifdef CONFIG_CMD_KGDB
499 static int initr_kgdb(void)
507 #if defined(CONFIG_LED_STATUS)
508 static int initr_status_led(void)
510 #if defined(CONFIG_LED_STATUS_BOOT)
511 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING);
519 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
520 static int initr_scsi(void)
530 #ifdef CONFIG_CMD_NET
531 static int initr_net(void)
535 #if defined(CONFIG_RESET_PHY_R)
536 debug("Reset Ethernet PHY\n");
544 static int initr_post(void)
546 post_run(NULL, POST_RAM | post_bootmode_get(0));
551 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
552 static int initr_ide(void)
555 #if defined(CONFIG_START_IDE)
556 if (board_start_ide())
565 #if defined(CONFIG_PRAM)
567 * Export available size of memory for Linux, taking into account the
568 * protected RAM at top of memory
575 pram = env_get_ulong("pram", 10, CONFIG_PRAM);
576 sprintf(memsz, "%ldk", (long int)((gd->ram_size / 1024) - pram));
577 env_set("mem", memsz);
583 static int run_main_loop(void)
585 #ifdef CONFIG_SANDBOX
586 sandbox_main_loop_init();
588 /* main_loop() can return to retry autoboot, if so just run it again */
595 * We hope to remove most of the driver-related init and do it if/when
596 * the driver is later used.
598 * TODO: perhaps reset the watchdog in the initcall function after each call?
600 static init_fnc_t init_sequence_r[] = {
603 /* TODO: could x86/PPC have this also perhaps? */
606 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
607 * A temporary mapping of IFC high region is since removed,
608 * so environmental variables in NOR flash is not available
609 * until board_init() is called below to remap IFC to high
613 initr_reloc_global_data,
614 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
615 initr_unlock_ram_in_cache,
620 initr_bootstage, /* Needs malloc() but has its own timer */
621 #if defined(CONFIG_CONSOLE_RECORD)
624 #ifdef CONFIG_SYS_NONCACHED_MEMORY
631 #ifdef CONFIG_ADDR_MAP
634 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV) || \
635 defined(CONFIG_SANDBOX)
636 board_init, /* Setup chipselects */
639 * TODO: printing of the clock inforamtion of the board is now
640 * implemented as part of bdinfo command. Currently only support for
641 * davinci SOC's is added. Remove this check once all the board
645 set_cpu_clk_info, /* Setup clock information */
647 #ifdef CONFIG_EFI_LOADER
651 #ifdef CONFIG_FSP_VERSION2
658 #if CONFIG_IS_ENABLED(WDT)
661 INIT_FUNC_WATCHDOG_RESET
662 #if defined(CONFIG_NEEDS_MANUAL_RELOC) && defined(CONFIG_BLOCK_CACHE)
665 #ifdef CONFIG_NEEDS_MANUAL_RELOC
666 initr_manual_reloc_cmdtable,
669 #if defined(CONFIG_BOARD_EARLY_INIT_R)
672 INIT_FUNC_WATCHDOG_RESET
676 INIT_FUNC_WATCHDOG_RESET
677 #if defined(CONFIG_PCI_INIT_R) && defined(CONFIG_SYS_EARLY_PCI_INIT)
679 * Do early PCI configuration _before_ the flash gets initialised,
680 * because PCU resources are crucial for flash access on some boards.
684 #ifdef CONFIG_ARCH_EARLY_INIT_R
688 #ifdef CONFIG_MTD_NOR_FLASH
691 INIT_FUNC_WATCHDOG_RESET
692 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
693 /* initialize higher level parts of CPU like time base and timers */
696 #ifdef CONFIG_CMD_NAND
699 #ifdef CONFIG_CMD_ONENAND
708 #ifdef CONFIG_PVBLOCK
712 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
713 initr_malloc_bootparams,
715 INIT_FUNC_WATCHDOG_RESET
716 cpu_secondary_init_r,
717 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
718 mac_read_from_eeprom,
720 INIT_FUNC_WATCHDOG_RESET
721 #if defined(CONFIG_PCI_INIT_R) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
723 * Do pci configuration
732 console_init_r, /* fully init console as a device */
733 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
737 #ifdef CONFIG_ARCH_MISC_INIT
738 arch_misc_init, /* miscellaneous arch-dependent init */
740 #ifdef CONFIG_MISC_INIT_R
741 misc_init_r, /* miscellaneous platform-dependent init */
743 INIT_FUNC_WATCHDOG_RESET
744 #ifdef CONFIG_CMD_KGDB
748 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K)
749 timer_init, /* initialize timer */
751 #if defined(CONFIG_LED_STATUS)
754 /* PPC has a udelay(20) here dating from 2002. Why? */
755 #ifdef CONFIG_CMD_NET
758 #if defined(CONFIG_GPIO_HOG)
761 #ifdef CONFIG_BOARD_LATE_INIT
764 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
765 INIT_FUNC_WATCHDOG_RESET
768 #ifdef CONFIG_BITBANGMII
771 #ifdef CONFIG_PCI_ENDPOINT
774 #ifdef CONFIG_CMD_NET
775 INIT_FUNC_WATCHDOG_RESET
781 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
784 #ifdef CONFIG_LAST_STAGE_INIT
785 INIT_FUNC_WATCHDOG_RESET
787 * Some parts can be only initialized if all others (like
788 * Interrupts) are up and running (i.e. the PC-style ISA
793 #ifdef CONFIG_CMD_BEDBUG
794 INIT_FUNC_WATCHDOG_RESET
797 #if defined(CONFIG_PRAM)
800 #ifdef CONFIG_EFI_SETUP_EARLY
801 (init_fnc_t)efi_init_obj_list,
806 void board_init_r(gd_t *new_gd, ulong dest_addr)
809 * Set up the new global data pointer. So far only x86 does this
811 * TODO(sjg@chromium.org): Consider doing this for all archs, or
812 * dropping the new_gd parameter.
814 #if CONFIG_IS_ENABLED(X86_64)
815 arch_setup_gd(new_gd);
818 #ifdef CONFIG_NEEDS_MANUAL_RELOC
822 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
825 gd->flags &= ~GD_FLG_LOG_READY;
827 #ifdef CONFIG_NEEDS_MANUAL_RELOC
828 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
829 init_sequence_r[i] += gd->reloc_off;
832 if (initcall_run_list(init_sequence_r))
835 /* NOTREACHED - run_main_loop() does not return */