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+
14 /* TODO: can we just include all these headers whether needed or not? */
15 #if defined(CONFIG_CMD_BEDBUG)
16 #include <bedbug/type.h>
20 #ifdef CONFIG_HAS_DATAFLASH
21 #include <dataflash.h>
24 #include <environment.h>
26 #if defined(CONFIG_CMD_IDE)
33 #if defined(CONFIG_CMD_KGDB)
39 #ifdef CONFIG_BITBANGMII
44 #include <onenand_uboot.h>
48 #include <stdio_dev.h>
52 #ifdef CONFIG_CMD_AMBAPP
55 #ifdef CONFIG_ADDR_MAP
58 #include <asm/sections.h>
60 #include <asm/init_helpers.h>
63 #include <linux/compiler.h>
64 #include <linux/err.h>
66 #include <asm/arch/mmu.h>
68 #include <efi_loader.h>
70 DECLARE_GLOBAL_DATA_PTR;
72 #if defined(CONFIG_SPARC)
73 extern int prom_init(void);
76 ulong monitor_flash_len;
78 __weak int board_flash_wp_on(void)
81 * Most flashes can't be detected when write protection is enabled,
82 * so provide a way to let U-Boot gracefully ignore write protected
88 __weak void cpu_secondary_init_r(void)
92 static int initr_secondary_cpu(void)
95 * after non-volatile devices & environment is setup and cpu code have
96 * another round to deal with any initialization that might require
97 * full access to the environment or loading of some image (firmware)
98 * from a non-volatile device
100 /* TODO: maybe define this for all archs? */
101 cpu_secondary_init_r();
106 static int initr_trace(void)
109 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
115 static int initr_reloc(void)
117 /* tell others: relocation done */
118 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
125 * Some of these functions are needed purely because the functions they
126 * call return void. If we change them to return 0, these stubs can go away.
128 static int initr_caches(void)
136 __weak int fixup_cpu(void)
141 static int initr_reloc_global_data(void)
144 monitor_flash_len = _end - __image_copy_start;
145 #elif defined(CONFIG_NDS32)
146 monitor_flash_len = (ulong)&_end - (ulong)&_start;
147 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
148 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
150 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
152 * The gd->cpu pointer is set to an address in flash before relocation.
153 * We need to update it to point to the same CPU entry in RAM.
154 * TODO: why not just add gd->reloc_ofs?
156 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
159 * If we didn't know the cpu mask & # cores, we can save them of
160 * now rather than 'computing' them constantly
164 #ifdef CONFIG_SYS_EXTRA_ENV_RELOC
166 * Some systems need to relocate the env_addr pointer early because the
167 * location it points to will get invalidated before env_relocate is
168 * called. One example is on systems that might use a L2 or L3 cache
169 * in SRAM mode and initialize that cache from SRAM mode back to being
170 * a cache in cpu_init_r.
172 gd->env_addr += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
174 #ifdef CONFIG_OF_EMBED
176 * The fdt_blob needs to be moved to new relocation address
177 * incase of FDT blob is embedded with in image
179 gd->fdt_blob += gd->reloc_off;
181 #ifdef CONFIG_EFI_LOADER
182 efi_runtime_relocate(gd->relocaddr, NULL);
188 static int initr_serial(void)
194 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
195 static int initr_trap(void)
198 * Setup trap handlers
200 #if defined(CONFIG_PPC)
201 trap_init(gd->relocaddr);
203 trap_init(CONFIG_SYS_SDRAM_BASE);
209 #ifdef CONFIG_ADDR_MAP
210 static int initr_addr_map(void)
218 #ifdef CONFIG_LOGBUFFER
219 unsigned long logbuffer_base(void)
221 return gd->ram_top - LOGBUFF_LEN;
224 static int initr_logbuffer(void)
232 static int initr_post_backlog(void)
234 post_output_backlog();
239 #ifdef CONFIG_SYS_DELAYED_ICACHE
240 static int initr_icache_enable(void)
246 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
247 static int initr_unlock_ram_in_cache(void)
249 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
255 static int initr_pci(void)
257 #ifndef CONFIG_DM_PCI
265 #ifdef CONFIG_WINBOND_83C553
266 static int initr_w83c553f(void)
269 * Initialise the ISA bridge
271 initialise_w83c553f();
276 static int initr_barrier(void)
279 /* TODO: Can we not use dmb() macros for this? */
285 static int initr_malloc(void)
289 #ifdef CONFIG_SYS_MALLOC_F_LEN
290 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
291 gd->malloc_ptr / 1024);
293 /* The malloc area is immediately below the monitor copy in DRAM */
294 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
295 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
300 static int initr_console_record(void)
302 #if defined(CONFIG_CONSOLE_RECORD)
303 return console_record_init();
309 #ifdef CONFIG_SYS_NONCACHED_MEMORY
310 static int initr_noncached(void)
318 static int initr_dm(void)
322 /* Save the pre-reloc driver model and start a new one */
323 gd->dm_root_f = gd->dm_root;
325 ret = dm_init_and_scan(false);
328 #ifdef CONFIG_TIMER_EARLY
330 ret = dm_timer_init();
339 static int initr_bootstage(void)
341 /* We cannot do this before initr_dm() */
342 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
347 __weak int power_init_board(void)
352 static int initr_announce(void)
354 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
358 #ifdef CONFIG_NEEDS_MANUAL_RELOC
359 static int initr_manual_reloc_cmdtable(void)
361 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
362 ll_entry_count(cmd_tbl_t, cmd));
367 #if !defined(CONFIG_SYS_NO_FLASH)
368 static int initr_flash(void)
370 ulong flash_size = 0;
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 (getenv_yesno("flashchecksum") == 1) {
388 printf(" CRC: %08X", crc32(0,
389 (const unsigned char *) CONFIG_SYS_FLASH_BASE,
392 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
395 /* update start of FLASH memory */
396 #ifdef CONFIG_SYS_FLASH_BASE
397 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
399 /* size of FLASH memory (final value) */
400 bd->bi_flashsize = flash_size;
402 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
403 /* Make a update of the Memctrl. */
404 update_flash_size(flash_size);
408 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
409 /* flash mapped at end of memory map */
410 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
411 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
412 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
418 #if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI)
419 static int initr_spi(void)
421 /* PPC does this here */
423 #if !defined(CONFIG_ENV_IS_IN_EEPROM)
432 #ifdef CONFIG_CMD_NAND
433 /* go init the NAND */
434 static int initr_nand(void)
442 #if defined(CONFIG_CMD_ONENAND)
443 /* go init the NAND */
444 static int initr_onenand(void)
452 #ifdef CONFIG_GENERIC_MMC
453 static int initr_mmc(void)
456 mmc_initialize(gd->bd);
461 #ifdef CONFIG_HAS_DATAFLASH
462 static int initr_dataflash(void)
464 AT91F_DataflashInit();
465 dataflash_print_info();
471 * Tell if it's OK to load the environment early in boot.
473 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
474 * if this is OK (defaulting to saying it's OK).
476 * NOTE: Loading the environment early can be a bad idea if security is
477 * important, since no verification is done on the environment.
479 * @return 0 if environment should not be loaded, !=0 if it is ok to load
481 static int should_load_env(void)
483 #ifdef CONFIG_OF_CONTROL
484 return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1);
485 #elif defined CONFIG_DELAY_ENVIRONMENT
492 static int initr_env(void)
494 /* initialize environment */
495 if (should_load_env())
498 set_default_env(NULL);
499 #ifdef CONFIG_OF_CONTROL
500 setenv_addr("fdtcontroladdr", gd->fdt_blob);
503 /* Initialize from environment */
504 load_addr = getenv_ulong("loadaddr", 16, load_addr);
505 #if defined(CONFIG_SYS_EXTBDINFO)
506 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
507 #if defined(CONFIG_I2CFAST)
509 * set bi_iic_fast for linux taking environment variable
510 * "i2cfast" into account
513 char *s = getenv("i2cfast");
515 if (s && ((*s == 'y') || (*s == 'Y'))) {
516 gd->bd->bi_iic_fast[0] = 1;
517 gd->bd->bi_iic_fast[1] = 1;
520 #endif /* CONFIG_I2CFAST */
521 #endif /* CONFIG_405GP, CONFIG_405EP */
522 #endif /* CONFIG_SYS_EXTBDINFO */
526 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
527 static int initr_malloc_bootparams(void)
529 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
530 if (!gd->bd->bi_boot_params) {
531 puts("WARNING: Cannot allocate space for boot parameters\n");
538 static int initr_jumptable(void)
544 #if defined(CONFIG_API)
545 static int initr_api(void)
553 /* enable exceptions */
554 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
555 static int initr_enable_interrupts(void)
562 #ifdef CONFIG_CMD_NET
563 static int initr_ethaddr(void)
567 /* kept around for legacy kernels only ... ignore the next section */
568 eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
569 #ifdef CONFIG_HAS_ETH1
570 eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
572 #ifdef CONFIG_HAS_ETH2
573 eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
575 #ifdef CONFIG_HAS_ETH3
576 eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
578 #ifdef CONFIG_HAS_ETH4
579 eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
581 #ifdef CONFIG_HAS_ETH5
582 eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
586 #endif /* CONFIG_CMD_NET */
588 #ifdef CONFIG_CMD_KGDB
589 static int initr_kgdb(void)
597 #if defined(CONFIG_STATUS_LED)
598 static int initr_status_led(void)
600 #if defined(STATUS_LED_BOOT)
601 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
609 #if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
610 extern int do_ambapp_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
612 static int initr_ambapp_print(void)
615 do_ambapp_print(NULL, 0, 0, NULL);
621 #if defined(CONFIG_CMD_SCSI)
622 static int initr_scsi(void)
631 #if defined(CONFIG_CMD_DOC)
632 static int initr_doc(void)
640 #ifdef CONFIG_BITBANGMII
641 static int initr_bbmii(void)
648 #ifdef CONFIG_CMD_NET
649 static int initr_net(void)
653 #if defined(CONFIG_RESET_PHY_R)
654 debug("Reset Ethernet PHY\n");
662 static int initr_post(void)
664 post_run(NULL, POST_RAM | post_bootmode_get(0));
669 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
670 static int initr_pcmcia(void)
678 #if defined(CONFIG_CMD_IDE)
679 static int initr_ide(void)
681 #ifdef CONFIG_IDE_8xx_PCCARD
686 #if defined(CONFIG_START_IDE)
687 if (board_start_ide())
696 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
698 * Export available size of memory for Linux, taking into account the
699 * protected RAM at top of memory
707 pram = getenv_ulong("pram", 10, CONFIG_PRAM);
709 # if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
710 /* Also take the logbuffer into account (pram is in kB) */
711 pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
713 sprintf(memsz, "%ldk", (long int) ((gd->ram_size / 1024) - pram));
714 setenv("mem", memsz);
720 #ifdef CONFIG_CMD_BEDBUG
721 static int initr_bedbug(void)
730 static int initr_kbd(void)
738 static int run_main_loop(void)
740 #ifdef CONFIG_SANDBOX
741 sandbox_main_loop_init();
743 /* main_loop() can return to retry autoboot, if so just run it again */
750 * Over time we hope to remove these functions with code fragments and
751 * stub funtcions, and instead call the relevant function directly.
753 * We also hope to remove most of the driver-related init and do it if/when
754 * the driver is later used.
756 * TODO: perhaps reset the watchdog in the initcall function after each call?
758 init_fnc_t init_sequence_r[] = {
761 /* TODO: could x86/PPC have this also perhaps? */
764 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
765 * A temporary mapping of IFC high region is since removed,
766 * so environmental variables in NOR flash is not availble
767 * until board_init() is called below to remap IFC to high
771 initr_reloc_global_data,
772 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
773 initr_unlock_ram_in_cache,
777 initr_console_record,
778 #ifdef CONFIG_SYS_NONCACHED_MEMORY
786 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32)
787 board_init, /* Setup chipselects */
790 * TODO: printing of the clock inforamtion of the board is now
791 * implemented as part of bdinfo command. Currently only support for
792 * davinci SOC's is added. Remove this check once all the board
796 set_cpu_clk_info, /* Setup clock information */
798 #ifdef CONFIG_EFI_LOADER
804 INIT_FUNC_WATCHDOG_RESET
805 #ifdef CONFIG_NEEDS_MANUAL_RELOC
806 initr_manual_reloc_cmdtable,
808 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
811 #ifdef CONFIG_ADDR_MAP
814 #if defined(CONFIG_BOARD_EARLY_INIT_R)
817 INIT_FUNC_WATCHDOG_RESET
818 #ifdef CONFIG_LOGBUFFER
824 INIT_FUNC_WATCHDOG_RESET
825 #ifdef CONFIG_SYS_DELAYED_ICACHE
828 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
830 * Do early PCI configuration _before_ the flash gets initialised,
831 * because PCU ressources are crucial for flash access on some boards.
835 #ifdef CONFIG_WINBOND_83C553
838 #ifdef CONFIG_ARCH_EARLY_INIT_R
842 #ifndef CONFIG_SYS_NO_FLASH
845 INIT_FUNC_WATCHDOG_RESET
846 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86) || \
847 defined(CONFIG_SPARC)
848 /* initialize higher level parts of CPU like time base and timers */
854 #ifdef CONFIG_CMD_NAND
857 #ifdef CONFIG_CMD_ONENAND
860 #ifdef CONFIG_GENERIC_MMC
863 #ifdef CONFIG_HAS_DATAFLASH
867 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
868 initr_malloc_bootparams,
870 INIT_FUNC_WATCHDOG_RESET
872 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
873 mac_read_from_eeprom,
875 INIT_FUNC_WATCHDOG_RESET
876 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
878 * Do pci configuration
887 console_init_r, /* fully init console as a device */
888 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
891 #ifdef CONFIG_ARCH_MISC_INIT
892 arch_misc_init, /* miscellaneous arch-dependent init */
894 #ifdef CONFIG_MISC_INIT_R
895 misc_init_r, /* miscellaneous platform-dependent init */
897 INIT_FUNC_WATCHDOG_RESET
898 #ifdef CONFIG_CMD_KGDB
902 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
903 initr_enable_interrupts,
905 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) || defined(CONFIG_M68K)
906 timer_init, /* initialize timer */
908 #if defined(CONFIG_STATUS_LED)
911 /* PPC has a udelay(20) here dating from 2002. Why? */
912 #ifdef CONFIG_CMD_NET
915 #ifdef CONFIG_BOARD_LATE_INIT
918 #if defined(CONFIG_CMD_AMBAPP)
920 #if defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
924 #ifdef CONFIG_CMD_SCSI
925 INIT_FUNC_WATCHDOG_RESET
928 #ifdef CONFIG_CMD_DOC
929 INIT_FUNC_WATCHDOG_RESET
932 #ifdef CONFIG_BITBANGMII
935 #ifdef CONFIG_CMD_NET
936 INIT_FUNC_WATCHDOG_RESET
942 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
945 #if defined(CONFIG_CMD_IDE)
948 #ifdef CONFIG_LAST_STAGE_INIT
949 INIT_FUNC_WATCHDOG_RESET
951 * Some parts can be only initialized if all others (like
952 * Interrupts) are up and running (i.e. the PC-style ISA
957 #ifdef CONFIG_CMD_BEDBUG
958 INIT_FUNC_WATCHDOG_RESET
961 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
967 #if defined(CONFIG_SPARC)
973 void board_init_r(gd_t *new_gd, ulong dest_addr)
975 #ifdef CONFIG_NEEDS_MANUAL_RELOC
980 mmu_init_r(dest_addr);
983 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
987 #ifdef CONFIG_NEEDS_MANUAL_RELOC
988 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
989 init_sequence_r[i] += gd->reloc_off;
992 if (initcall_run_list(init_sequence_r))
995 /* NOTREACHED - run_main_loop() does not return */