2 * Copyright (c) 2011 The Chromium OS Authors.
3 * (C) Copyright 2002-2006
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
8 * Marius Groeger <mgroeger@sysgo.de>
10 * SPDX-License-Identifier: GPL-2.0+
15 /* TODO: can we just include all these headers whether needed or not? */
16 #if defined(CONFIG_CMD_BEDBUG)
17 #include <bedbug/type.h>
21 #ifdef CONFIG_HAS_DATAFLASH
22 #include <dataflash.h>
25 #include <environment.h>
29 #include <init_helpers.h>
33 #if defined(CONFIG_CMD_KGDB)
39 #ifdef CONFIG_BITBANGMII
45 #include <onenand_uboot.h>
49 #include <stdio_dev.h>
53 #ifdef CONFIG_ADDR_MAP
56 #include <asm/sections.h>
58 #include <linux/compiler.h>
59 #include <linux/err.h>
60 #include <efi_loader.h>
62 DECLARE_GLOBAL_DATA_PTR;
64 ulong monitor_flash_len;
66 __weak int board_flash_wp_on(void)
69 * Most flashes can't be detected when write protection is enabled,
70 * so provide a way to let U-Boot gracefully ignore write protected
76 __weak void cpu_secondary_init_r(void)
80 static int initr_secondary_cpu(void)
83 * after non-volatile devices & environment is setup and cpu code have
84 * another round to deal with any initialization that might require
85 * full access to the environment or loading of some image (firmware)
86 * from a non-volatile device
88 /* TODO: maybe define this for all archs? */
89 cpu_secondary_init_r();
94 static int initr_trace(void)
97 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
103 static int initr_reloc(void)
105 /* tell others: relocation done */
106 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
113 * Some of these functions are needed purely because the functions they
114 * call return void. If we change them to return 0, these stubs can go away.
116 static int initr_caches(void)
124 __weak int fixup_cpu(void)
129 static int initr_reloc_global_data(void)
132 monitor_flash_len = _end - __image_copy_start;
133 #elif defined(CONFIG_NDS32)
134 monitor_flash_len = (ulong)&_end - (ulong)&_start;
135 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
136 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
138 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
140 * The gd->cpu pointer is set to an address in flash before relocation.
141 * We need to update it to point to the same CPU entry in RAM.
142 * TODO: why not just add gd->reloc_ofs?
144 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
147 * If we didn't know the cpu mask & # cores, we can save them of
148 * now rather than 'computing' them constantly
152 #ifdef CONFIG_SYS_EXTRA_ENV_RELOC
154 * Some systems need to relocate the env_addr pointer early because the
155 * location it points to will get invalidated before env_relocate is
156 * called. One example is on systems that might use a L2 or L3 cache
157 * in SRAM mode and initialize that cache from SRAM mode back to being
158 * a cache in cpu_init_r.
160 gd->env_addr += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
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
170 efi_runtime_relocate(gd->relocaddr, NULL);
176 static int initr_serial(void)
182 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
183 static int initr_trap(void)
186 * Setup trap handlers
188 #if defined(CONFIG_PPC)
189 trap_init(gd->relocaddr);
191 trap_init(CONFIG_SYS_SDRAM_BASE);
197 #ifdef CONFIG_ADDR_MAP
198 static int initr_addr_map(void)
206 #ifdef CONFIG_LOGBUFFER
207 unsigned long logbuffer_base(void)
209 return gd->ram_top - LOGBUFF_LEN;
212 static int initr_logbuffer(void)
220 static int initr_post_backlog(void)
222 post_output_backlog();
227 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
228 static int initr_unlock_ram_in_cache(void)
230 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
236 static int initr_pci(void)
238 #ifndef CONFIG_DM_PCI
246 static int initr_barrier(void)
249 /* TODO: Can we not use dmb() macros for this? */
255 static int initr_malloc(void)
259 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
260 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
261 gd->malloc_ptr / 1024);
263 /* The malloc area is immediately below the monitor copy in DRAM */
264 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
265 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
270 static int initr_console_record(void)
272 #if defined(CONFIG_CONSOLE_RECORD)
273 return console_record_init();
279 #ifdef CONFIG_SYS_NONCACHED_MEMORY
280 static int initr_noncached(void)
287 #ifdef CONFIG_OF_LIVE
288 static int initr_of_live(void)
292 bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live");
293 ret = of_live_build(gd->fdt_blob, (struct device_node **)&gd->of_root);
294 bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE);
303 static int initr_dm(void)
307 /* Save the pre-reloc driver model and start a new one */
308 gd->dm_root_f = gd->dm_root;
313 bootstage_start(BOOTSTATE_ID_ACCUM_DM_R, "dm_r");
314 ret = dm_init_and_scan(false);
315 bootstage_accum(BOOTSTATE_ID_ACCUM_DM_R);
318 #ifdef CONFIG_TIMER_EARLY
319 ret = dm_timer_init();
328 static int initr_bootstage(void)
330 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
335 __weak int power_init_board(void)
340 static int initr_announce(void)
342 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
346 #ifdef CONFIG_NEEDS_MANUAL_RELOC
347 static int initr_manual_reloc_cmdtable(void)
349 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
350 ll_entry_count(cmd_tbl_t, cmd));
355 #if defined(CONFIG_MTD_NOR_FLASH)
356 static int initr_flash(void)
358 ulong flash_size = 0;
363 if (board_flash_wp_on())
364 printf("Uninitialized - Write Protect On\n");
366 flash_size = flash_init();
368 print_size(flash_size, "");
369 #ifdef CONFIG_SYS_FLASH_CHECKSUM
371 * Compute and print flash CRC if flashchecksum is set to 'y'
373 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
375 if (env_get_yesno("flashchecksum") == 1) {
376 printf(" CRC: %08X", crc32(0,
377 (const unsigned char *) CONFIG_SYS_FLASH_BASE,
380 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
383 /* update start of FLASH memory */
384 #ifdef CONFIG_SYS_FLASH_BASE
385 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
387 /* size of FLASH memory (final value) */
388 bd->bi_flashsize = flash_size;
390 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
391 /* Make a update of the Memctrl. */
392 update_flash_size(flash_size);
396 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
397 /* flash mapped at end of memory map */
398 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
399 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
400 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
406 #if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI)
407 static int initr_spi(void)
409 /* PPC does this here */
411 #if !defined(CONFIG_ENV_IS_IN_EEPROM)
420 #ifdef CONFIG_CMD_NAND
421 /* go init the NAND */
422 static int initr_nand(void)
426 printf("%lu MiB\n", nand_size() / 1024);
431 #if defined(CONFIG_CMD_ONENAND)
432 /* go init the NAND */
433 static int initr_onenand(void)
442 static int initr_mmc(void)
445 mmc_initialize(gd->bd);
450 #ifdef CONFIG_HAS_DATAFLASH
451 static int initr_dataflash(void)
453 AT91F_DataflashInit();
454 dataflash_print_info();
460 * Tell if it's OK to load the environment early in boot.
462 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
463 * if this is OK (defaulting to saying it's OK).
465 * NOTE: Loading the environment early can be a bad idea if security is
466 * important, since no verification is done on the environment.
468 * @return 0 if environment should not be loaded, !=0 if it is ok to load
470 static int should_load_env(void)
472 #ifdef CONFIG_OF_CONTROL
473 return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1);
474 #elif defined CONFIG_DELAY_ENVIRONMENT
481 static int initr_env(void)
483 /* initialize environment */
484 if (should_load_env())
487 set_default_env(NULL);
488 #ifdef CONFIG_OF_CONTROL
489 env_set_addr("fdtcontroladdr", gd->fdt_blob);
492 /* Initialize from environment */
493 load_addr = env_get_ulong("loadaddr", 16, load_addr);
498 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
499 static int initr_malloc_bootparams(void)
501 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
502 if (!gd->bd->bi_boot_params) {
503 puts("WARNING: Cannot allocate space for boot parameters\n");
510 static int initr_jumptable(void)
516 #if defined(CONFIG_API)
517 static int initr_api(void)
525 /* enable exceptions */
527 static int initr_enable_interrupts(void)
534 #ifdef CONFIG_CMD_NET
535 static int initr_ethaddr(void)
539 /* kept around for legacy kernels only ... ignore the next section */
540 eth_env_get_enetaddr("ethaddr", bd->bi_enetaddr);
541 #ifdef CONFIG_HAS_ETH1
542 eth_env_get_enetaddr("eth1addr", bd->bi_enet1addr);
544 #ifdef CONFIG_HAS_ETH2
545 eth_env_get_enetaddr("eth2addr", bd->bi_enet2addr);
547 #ifdef CONFIG_HAS_ETH3
548 eth_env_get_enetaddr("eth3addr", bd->bi_enet3addr);
550 #ifdef CONFIG_HAS_ETH4
551 eth_env_get_enetaddr("eth4addr", bd->bi_enet4addr);
553 #ifdef CONFIG_HAS_ETH5
554 eth_env_get_enetaddr("eth5addr", bd->bi_enet5addr);
558 #endif /* CONFIG_CMD_NET */
560 #ifdef CONFIG_CMD_KGDB
561 static int initr_kgdb(void)
569 #if defined(CONFIG_LED_STATUS)
570 static int initr_status_led(void)
572 #if defined(CONFIG_LED_STATUS_BOOT)
573 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING);
581 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
582 static int initr_scsi(void)
591 #ifdef CONFIG_BITBANGMII
592 static int initr_bbmii(void)
599 #ifdef CONFIG_CMD_NET
600 static int initr_net(void)
604 #if defined(CONFIG_RESET_PHY_R)
605 debug("Reset Ethernet PHY\n");
613 static int initr_post(void)
615 post_run(NULL, POST_RAM | post_bootmode_get(0));
620 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_IDE)
621 static int initr_pcmcia(void)
629 #if defined(CONFIG_IDE)
630 static int initr_ide(void)
633 #if defined(CONFIG_START_IDE)
634 if (board_start_ide())
643 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
645 * Export available size of memory for Linux, taking into account the
646 * protected RAM at top of memory
654 pram = env_get_ulong("pram", 10, CONFIG_PRAM);
656 # if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
657 /* Also take the logbuffer into account (pram is in kB) */
658 pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
660 sprintf(memsz, "%ldk", (long int) ((gd->ram_size / 1024) - pram));
661 env_set("mem", memsz);
667 #ifdef CONFIG_CMD_BEDBUG
668 static int initr_bedbug(void)
677 static int initr_kbd(void)
685 static int run_main_loop(void)
687 #ifdef CONFIG_SANDBOX
688 sandbox_main_loop_init();
690 /* main_loop() can return to retry autoboot, if so just run it again */
697 * Over time we hope to remove these functions with code fragments and
698 * stub funtcions, and instead call the relevant function directly.
700 * We also hope to remove most of the driver-related init and do it if/when
701 * the driver is later used.
703 * TODO: perhaps reset the watchdog in the initcall function after each call?
705 static init_fnc_t init_sequence_r[] = {
708 /* TODO: could x86/PPC have this also perhaps? */
711 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
712 * A temporary mapping of IFC high region is since removed,
713 * so environmental variables in NOR flash is not availble
714 * until board_init() is called below to remap IFC to high
718 initr_reloc_global_data,
719 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
720 initr_unlock_ram_in_cache,
724 initr_bootstage, /* Needs malloc() but has its own timer */
725 initr_console_record,
726 #ifdef CONFIG_SYS_NONCACHED_MEMORY
730 #ifdef CONFIG_OF_LIVE
736 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32)
737 board_init, /* Setup chipselects */
740 * TODO: printing of the clock inforamtion of the board is now
741 * implemented as part of bdinfo command. Currently only support for
742 * davinci SOC's is added. Remove this check once all the board
746 set_cpu_clk_info, /* Setup clock information */
748 #ifdef CONFIG_EFI_LOADER
754 INIT_FUNC_WATCHDOG_RESET
755 #ifdef CONFIG_NEEDS_MANUAL_RELOC
756 initr_manual_reloc_cmdtable,
758 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
761 #ifdef CONFIG_ADDR_MAP
764 #if defined(CONFIG_BOARD_EARLY_INIT_R)
767 INIT_FUNC_WATCHDOG_RESET
768 #ifdef CONFIG_LOGBUFFER
774 INIT_FUNC_WATCHDOG_RESET
775 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
777 * Do early PCI configuration _before_ the flash gets initialised,
778 * because PCU ressources are crucial for flash access on some boards.
782 #ifdef CONFIG_ARCH_EARLY_INIT_R
786 #ifdef CONFIG_MTD_NOR_FLASH
789 INIT_FUNC_WATCHDOG_RESET
790 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
791 /* initialize higher level parts of CPU like time base and timers */
797 #ifdef CONFIG_CMD_NAND
800 #ifdef CONFIG_CMD_ONENAND
806 #ifdef CONFIG_HAS_DATAFLASH
810 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
811 initr_malloc_bootparams,
813 INIT_FUNC_WATCHDOG_RESET
815 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
816 mac_read_from_eeprom,
818 INIT_FUNC_WATCHDOG_RESET
819 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
821 * Do pci configuration
830 console_init_r, /* fully init console as a device */
831 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
835 #ifdef CONFIG_ARCH_MISC_INIT
836 arch_misc_init, /* miscellaneous arch-dependent init */
838 #ifdef CONFIG_MISC_INIT_R
839 misc_init_r, /* miscellaneous platform-dependent init */
841 INIT_FUNC_WATCHDOG_RESET
842 #ifdef CONFIG_CMD_KGDB
847 initr_enable_interrupts,
849 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K)
850 timer_init, /* initialize timer */
852 #if defined(CONFIG_LED_STATUS)
855 /* PPC has a udelay(20) here dating from 2002. Why? */
856 #ifdef CONFIG_CMD_NET
859 #ifdef CONFIG_BOARD_LATE_INIT
862 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
863 INIT_FUNC_WATCHDOG_RESET
866 #ifdef CONFIG_BITBANGMII
869 #ifdef CONFIG_CMD_NET
870 INIT_FUNC_WATCHDOG_RESET
876 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_IDE)
879 #if defined(CONFIG_IDE)
882 #ifdef CONFIG_LAST_STAGE_INIT
883 INIT_FUNC_WATCHDOG_RESET
885 * Some parts can be only initialized if all others (like
886 * Interrupts) are up and running (i.e. the PC-style ISA
891 #ifdef CONFIG_CMD_BEDBUG
892 INIT_FUNC_WATCHDOG_RESET
895 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
904 void board_init_r(gd_t *new_gd, ulong dest_addr)
907 * Set up the new global data pointer. So far only x86 does this
909 * TODO(sjg@chromium.org): Consider doing this for all archs, or
910 * dropping the new_gd parameter.
912 #if CONFIG_IS_ENABLED(X86_64)
913 arch_setup_gd(new_gd);
916 #ifdef CONFIG_NEEDS_MANUAL_RELOC
920 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
924 #ifdef CONFIG_NEEDS_MANUAL_RELOC
925 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
926 init_sequence_r[i] += gd->reloc_off;
929 if (initcall_run_list(init_sequence_r))
932 /* NOTREACHED - run_main_loop() does not return */