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>
17 #include <u-boot/crc.h>
18 /* TODO: can we just include all these headers whether needed or not? */
19 #if defined(CONFIG_CMD_BEDBUG)
20 #include <bedbug/type.h>
27 #include <env_internal.h>
32 #if defined(CONFIG_CMD_KGDB)
38 #ifdef CONFIG_BITBANGMII
44 #include <onenand_uboot.h>
47 #include <status_led.h>
48 #include <stdio_dev.h>
52 #ifdef CONFIG_ADDR_MAP
55 #include <asm/sections.h>
57 #include <linux/compiler.h>
58 #include <linux/err.h>
59 #include <efi_loader.h>
61 #if defined(CONFIG_GPIO_HOG)
65 DECLARE_GLOBAL_DATA_PTR;
67 ulong monitor_flash_len;
69 __weak int board_flash_wp_on(void)
72 * Most flashes can't be detected when write protection is enabled,
73 * so provide a way to let U-Boot gracefully ignore write protected
79 __weak void cpu_secondary_init_r(void)
83 static int initr_secondary_cpu(void)
86 * after non-volatile devices & environment is setup and cpu code have
87 * another round to deal with any initialization that might require
88 * full access to the environment or loading of some image (firmware)
89 * from a non-volatile device
91 /* TODO: maybe define this for all archs? */
92 cpu_secondary_init_r();
97 static int initr_trace(void)
100 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
106 static int initr_reloc(void)
108 /* tell others: relocation done */
109 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
116 * Some of these functions are needed purely because the functions they
117 * call return void. If we change them to return 0, these stubs can go away.
119 static int initr_caches(void)
127 __weak int fixup_cpu(void)
132 static int initr_reloc_global_data(void)
135 monitor_flash_len = _end - __image_copy_start;
136 #elif defined(CONFIG_NDS32) || defined(CONFIG_RISCV)
137 monitor_flash_len = (ulong)&_end - (ulong)&_start;
138 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
139 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
141 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
143 * The gd->cpu pointer is set to an address in flash before relocation.
144 * We need to update it to point to the same CPU entry in RAM.
145 * TODO: why not just add gd->reloc_ofs?
147 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
150 * If we didn't know the cpu mask & # cores, we can save them of
151 * now rather than 'computing' them constantly
155 #ifdef CONFIG_SYS_RELOC_GD_ENV_ADDR
157 * Relocate the early env_addr pointer unless we know it is not inside
158 * the binary. Some systems need this and for the rest, it doesn't hurt.
160 gd->env_addr += gd->reloc_off;
162 #ifdef CONFIG_OF_EMBED
164 * The fdt_blob needs to be moved to new relocation address
165 * incase of FDT blob is embedded with in image
167 gd->fdt_blob += gd->reloc_off;
169 #ifdef CONFIG_EFI_LOADER
171 * On the ARM architecture gd is mapped to a fixed register (r9 or x18).
172 * As this register may be overwritten by an EFI payload we save it here
173 * and restore it on every callback entered.
177 efi_runtime_relocate(gd->relocaddr, NULL);
183 static int initr_serial(void)
189 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
190 static int initr_trap(void)
193 * Setup trap handlers
195 #if defined(CONFIG_PPC)
196 trap_init(gd->relocaddr);
198 trap_init(CONFIG_SYS_SDRAM_BASE);
204 #ifdef CONFIG_ADDR_MAP
205 static int initr_addr_map(void)
214 static int initr_post_backlog(void)
216 post_output_backlog();
221 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
222 static int initr_unlock_ram_in_cache(void)
224 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
230 static int initr_pci(void)
232 #ifndef CONFIG_DM_PCI
240 static int initr_barrier(void)
243 /* TODO: Can we not use dmb() macros for this? */
249 static int initr_malloc(void)
253 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
254 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
255 gd->malloc_ptr / 1024);
257 /* The malloc area is immediately below the monitor copy in DRAM */
259 * This value MUST match the value of gd->start_addr_sp in board_f.c:
260 * reserve_noncached().
262 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
263 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
268 static int initr_console_record(void)
270 #if defined(CONFIG_CONSOLE_RECORD)
271 return console_record_init();
277 #ifdef CONFIG_SYS_NONCACHED_MEMORY
278 static int initr_noncached(void)
285 #ifdef CONFIG_OF_LIVE
286 static int initr_of_live(void)
290 bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live");
291 ret = of_live_build(gd->fdt_blob, (struct device_node **)&gd->of_root);
292 bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE);
301 static int initr_dm(void)
305 /* Save the pre-reloc driver model and start a new one */
306 gd->dm_root_f = gd->dm_root;
311 bootstage_start(BOOTSTATE_ID_ACCUM_DM_R, "dm_r");
312 ret = dm_init_and_scan(false);
313 bootstage_accum(BOOTSTATE_ID_ACCUM_DM_R);
321 static int initr_dm_devices(void)
325 if (IS_ENABLED(CONFIG_TIMER_EARLY)) {
326 ret = dm_timer_init();
334 static int initr_bootstage(void)
336 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
341 __weak int power_init_board(void)
346 static int initr_announce(void)
348 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
352 #ifdef CONFIG_NEEDS_MANUAL_RELOC
353 static int initr_manual_reloc_cmdtable(void)
355 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
356 ll_entry_count(cmd_tbl_t, cmd));
361 static int initr_binman(void)
363 if (!CONFIG_IS_ENABLED(BINMAN_FDT))
366 return binman_init();
369 #if defined(CONFIG_MTD_NOR_FLASH)
370 static int initr_flash(void)
372 ulong flash_size = 0;
377 if (board_flash_wp_on())
378 printf("Uninitialized - Write Protect On\n");
380 flash_size = flash_init();
382 print_size(flash_size, "");
383 #ifdef CONFIG_SYS_FLASH_CHECKSUM
385 * Compute and print flash CRC if flashchecksum is set to 'y'
387 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
389 if (env_get_yesno("flashchecksum") == 1) {
390 const uchar *flash_base = (const uchar *)CONFIG_SYS_FLASH_BASE;
392 printf(" CRC: %08X", crc32(0,
396 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
399 /* update start of FLASH memory */
400 #ifdef CONFIG_SYS_FLASH_BASE
401 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
403 /* size of FLASH memory (final value) */
404 bd->bi_flashsize = flash_size;
406 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
407 /* Make a update of the Memctrl. */
408 update_flash_size(flash_size);
411 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
412 /* flash mapped at end of memory map */
413 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
414 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
415 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
421 #ifdef CONFIG_CMD_NAND
422 /* go init the NAND */
423 static int initr_nand(void)
427 printf("%lu MiB\n", nand_size() / 1024);
432 #if defined(CONFIG_CMD_ONENAND)
433 /* go init the NAND */
434 static int initr_onenand(void)
443 static int initr_mmc(void)
446 mmc_initialize(gd->bd);
452 * Tell if it's OK to load the environment early in boot.
454 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
455 * if this is OK (defaulting to saying it's OK).
457 * NOTE: Loading the environment early can be a bad idea if security is
458 * important, since no verification is done on the environment.
460 * @return 0 if environment should not be loaded, !=0 if it is ok to load
462 static int should_load_env(void)
464 #ifdef CONFIG_OF_CONTROL
465 return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1);
466 #elif defined CONFIG_DELAY_ENVIRONMENT
473 static int initr_env(void)
475 /* initialize environment */
476 if (should_load_env())
479 env_set_default(NULL, 0);
480 #ifdef CONFIG_OF_CONTROL
481 env_set_hex("fdtcontroladdr",
482 (unsigned long)map_to_sysmem(gd->fdt_blob));
485 /* Initialize from environment */
486 load_addr = env_get_ulong("loadaddr", 16, load_addr);
491 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
492 static int initr_malloc_bootparams(void)
494 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
495 if (!gd->bd->bi_boot_params) {
496 puts("WARNING: Cannot allocate space for boot parameters\n");
503 static int initr_jumptable(void)
509 #if defined(CONFIG_API)
510 static int initr_api(void)
518 /* enable exceptions */
520 static int initr_enable_interrupts(void)
527 #ifdef CONFIG_CMD_NET
528 static int initr_ethaddr(void)
532 /* kept around for legacy kernels only ... ignore the next section */
533 eth_env_get_enetaddr("ethaddr", bd->bi_enetaddr);
534 #ifdef CONFIG_HAS_ETH1
535 eth_env_get_enetaddr("eth1addr", bd->bi_enet1addr);
537 #ifdef CONFIG_HAS_ETH2
538 eth_env_get_enetaddr("eth2addr", bd->bi_enet2addr);
540 #ifdef CONFIG_HAS_ETH3
541 eth_env_get_enetaddr("eth3addr", bd->bi_enet3addr);
543 #ifdef CONFIG_HAS_ETH4
544 eth_env_get_enetaddr("eth4addr", bd->bi_enet4addr);
546 #ifdef CONFIG_HAS_ETH5
547 eth_env_get_enetaddr("eth5addr", bd->bi_enet5addr);
551 #endif /* CONFIG_CMD_NET */
553 #ifdef CONFIG_CMD_KGDB
554 static int initr_kgdb(void)
562 #if defined(CONFIG_LED_STATUS)
563 static int initr_status_led(void)
565 #if defined(CONFIG_LED_STATUS_BOOT)
566 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING);
574 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
575 static int initr_scsi(void)
585 #ifdef CONFIG_BITBANGMII
586 static int initr_bbmii(void)
593 #ifdef CONFIG_CMD_NET
594 static int initr_net(void)
598 #if defined(CONFIG_RESET_PHY_R)
599 debug("Reset Ethernet PHY\n");
607 static int initr_post(void)
609 post_run(NULL, POST_RAM | post_bootmode_get(0));
614 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
615 static int initr_ide(void)
618 #if defined(CONFIG_START_IDE)
619 if (board_start_ide())
628 #if defined(CONFIG_PRAM)
630 * Export available size of memory for Linux, taking into account the
631 * protected RAM at top of memory
638 pram = env_get_ulong("pram", 10, CONFIG_PRAM);
639 sprintf(memsz, "%ldk", (long int)((gd->ram_size / 1024) - pram));
640 env_set("mem", memsz);
646 #ifdef CONFIG_CMD_BEDBUG
647 static int initr_bedbug(void)
655 static int run_main_loop(void)
657 #ifdef CONFIG_SANDBOX
658 sandbox_main_loop_init();
660 /* main_loop() can return to retry autoboot, if so just run it again */
667 * We hope to remove most of the driver-related init and do it if/when
668 * the driver is later used.
670 * TODO: perhaps reset the watchdog in the initcall function after each call?
672 static init_fnc_t init_sequence_r[] = {
675 /* TODO: could x86/PPC have this also perhaps? */
678 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
679 * A temporary mapping of IFC high region is since removed,
680 * so environmental variables in NOR flash is not available
681 * until board_init() is called below to remap IFC to high
685 initr_reloc_global_data,
686 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
687 initr_unlock_ram_in_cache,
692 initr_bootstage, /* Needs malloc() but has its own timer */
693 initr_console_record,
694 #ifdef CONFIG_SYS_NONCACHED_MEMORY
697 #ifdef CONFIG_OF_LIVE
703 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV) || \
704 defined(CONFIG_SANDBOX)
705 board_init, /* Setup chipselects */
708 * TODO: printing of the clock inforamtion of the board is now
709 * implemented as part of bdinfo command. Currently only support for
710 * davinci SOC's is added. Remove this check once all the board
714 set_cpu_clk_info, /* Setup clock information */
716 #ifdef CONFIG_EFI_LOADER
720 #ifdef CONFIG_FSP_VERSION2
727 #if CONFIG_IS_ENABLED(WDT)
730 INIT_FUNC_WATCHDOG_RESET
731 #ifdef CONFIG_NEEDS_MANUAL_RELOC
732 initr_manual_reloc_cmdtable,
734 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
737 #ifdef CONFIG_ADDR_MAP
740 #if defined(CONFIG_BOARD_EARLY_INIT_R)
743 INIT_FUNC_WATCHDOG_RESET
747 INIT_FUNC_WATCHDOG_RESET
748 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
750 * Do early PCI configuration _before_ the flash gets initialised,
751 * because PCU resources are crucial for flash access on some boards.
755 #ifdef CONFIG_ARCH_EARLY_INIT_R
759 #ifdef CONFIG_MTD_NOR_FLASH
762 INIT_FUNC_WATCHDOG_RESET
763 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
764 /* initialize higher level parts of CPU like time base and timers */
767 #ifdef CONFIG_CMD_NAND
770 #ifdef CONFIG_CMD_ONENAND
777 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
778 initr_malloc_bootparams,
780 INIT_FUNC_WATCHDOG_RESET
782 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
783 mac_read_from_eeprom,
785 INIT_FUNC_WATCHDOG_RESET
786 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
788 * Do pci configuration
797 console_init_r, /* fully init console as a device */
798 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
802 #ifdef CONFIG_ARCH_MISC_INIT
803 arch_misc_init, /* miscellaneous arch-dependent init */
805 #ifdef CONFIG_MISC_INIT_R
806 misc_init_r, /* miscellaneous platform-dependent init */
808 INIT_FUNC_WATCHDOG_RESET
809 #ifdef CONFIG_CMD_KGDB
814 initr_enable_interrupts,
816 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K)
817 timer_init, /* initialize timer */
819 #if defined(CONFIG_LED_STATUS)
822 /* PPC has a udelay(20) here dating from 2002. Why? */
823 #ifdef CONFIG_CMD_NET
826 #if defined(CONFIG_GPIO_HOG)
829 #ifdef CONFIG_BOARD_LATE_INIT
832 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
833 INIT_FUNC_WATCHDOG_RESET
836 #ifdef CONFIG_BITBANGMII
839 #ifdef CONFIG_CMD_NET
840 INIT_FUNC_WATCHDOG_RESET
846 #if defined(CONFIG_IDE) && !defined(CONFIG_BLK)
849 #ifdef CONFIG_LAST_STAGE_INIT
850 INIT_FUNC_WATCHDOG_RESET
852 * Some parts can be only initialized if all others (like
853 * Interrupts) are up and running (i.e. the PC-style ISA
858 #ifdef CONFIG_CMD_BEDBUG
859 INIT_FUNC_WATCHDOG_RESET
862 #if defined(CONFIG_PRAM)
868 void board_init_r(gd_t *new_gd, ulong dest_addr)
871 * Set up the new global data pointer. So far only x86 does this
873 * TODO(sjg@chromium.org): Consider doing this for all archs, or
874 * dropping the new_gd parameter.
876 #if CONFIG_IS_ENABLED(X86_64)
877 arch_setup_gd(new_gd);
880 #ifdef CONFIG_NEEDS_MANUAL_RELOC
884 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
887 gd->flags &= ~GD_FLG_LOG_READY;
889 #ifdef CONFIG_NEEDS_MANUAL_RELOC
890 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
891 init_sequence_r[i] += gd->reloc_off;
894 if (initcall_run_list(init_sequence_r))
897 /* NOTREACHED - run_main_loop() does not return */