2 * Copyright (c) 2011 The Chromium OS Authors.
3 * (C) Copyright 2002-2006
7 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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>
28 #include <init_helpers.h>
32 #if defined(CONFIG_CMD_KGDB)
38 #ifdef CONFIG_BITBANGMII
43 #include <onenand_uboot.h>
47 #include <stdio_dev.h>
51 #ifdef CONFIG_ADDR_MAP
54 #include <asm/sections.h>
56 #include <linux/compiler.h>
57 #include <linux/err.h>
59 #include <asm/arch/mmu.h>
61 #include <efi_loader.h>
63 DECLARE_GLOBAL_DATA_PTR;
65 ulong monitor_flash_len;
67 __weak int board_flash_wp_on(void)
70 * Most flashes can't be detected when write protection is enabled,
71 * so provide a way to let U-Boot gracefully ignore write protected
77 __weak void cpu_secondary_init_r(void)
81 static int initr_secondary_cpu(void)
84 * after non-volatile devices & environment is setup and cpu code have
85 * another round to deal with any initialization that might require
86 * full access to the environment or loading of some image (firmware)
87 * from a non-volatile device
89 /* TODO: maybe define this for all archs? */
90 cpu_secondary_init_r();
95 static int initr_trace(void)
98 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
104 static int initr_reloc(void)
106 /* tell others: relocation done */
107 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
114 * Some of these functions are needed purely because the functions they
115 * call return void. If we change them to return 0, these stubs can go away.
117 static int initr_caches(void)
125 __weak int fixup_cpu(void)
130 static int initr_reloc_global_data(void)
133 monitor_flash_len = _end - __image_copy_start;
134 #elif defined(CONFIG_NDS32)
135 monitor_flash_len = (ulong)&_end - (ulong)&_start;
136 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
137 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
139 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
141 * The gd->cpu pointer is set to an address in flash before relocation.
142 * We need to update it to point to the same CPU entry in RAM.
143 * TODO: why not just add gd->reloc_ofs?
145 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
148 * If we didn't know the cpu mask & # cores, we can save them of
149 * now rather than 'computing' them constantly
153 #ifdef CONFIG_SYS_EXTRA_ENV_RELOC
155 * Some systems need to relocate the env_addr pointer early because the
156 * location it points to will get invalidated before env_relocate is
157 * called. One example is on systems that might use a L2 or L3 cache
158 * in SRAM mode and initialize that cache from SRAM mode back to being
159 * a cache in cpu_init_r.
161 gd->env_addr += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
163 #ifdef CONFIG_OF_EMBED
165 * The fdt_blob needs to be moved to new relocation address
166 * incase of FDT blob is embedded with in image
168 gd->fdt_blob += gd->reloc_off;
170 #ifdef CONFIG_EFI_LOADER
171 efi_runtime_relocate(gd->relocaddr, NULL);
177 static int initr_serial(void)
183 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
184 static int initr_trap(void)
187 * Setup trap handlers
189 #if defined(CONFIG_PPC)
190 trap_init(gd->relocaddr);
192 trap_init(CONFIG_SYS_SDRAM_BASE);
198 #ifdef CONFIG_ADDR_MAP
199 static int initr_addr_map(void)
207 #ifdef CONFIG_LOGBUFFER
208 unsigned long logbuffer_base(void)
210 return gd->ram_top - LOGBUFF_LEN;
213 static int initr_logbuffer(void)
221 static int initr_post_backlog(void)
223 post_output_backlog();
228 #ifdef CONFIG_SYS_DELAYED_ICACHE
229 static int initr_icache_enable(void)
235 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
236 static int initr_unlock_ram_in_cache(void)
238 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
244 static int initr_pci(void)
246 #ifndef CONFIG_DM_PCI
254 static int initr_barrier(void)
257 /* TODO: Can we not use dmb() macros for this? */
263 static int initr_malloc(void)
267 #ifdef CONFIG_SYS_MALLOC_F_LEN
268 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
269 gd->malloc_ptr / 1024);
271 /* The malloc area is immediately below the monitor copy in DRAM */
272 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
273 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
278 static int initr_console_record(void)
280 #if defined(CONFIG_CONSOLE_RECORD)
281 return console_record_init();
287 #ifdef CONFIG_SYS_NONCACHED_MEMORY
288 static int initr_noncached(void)
296 static int initr_dm(void)
300 /* Save the pre-reloc driver model and start a new one */
301 gd->dm_root_f = gd->dm_root;
306 ret = dm_init_and_scan(false);
309 #ifdef CONFIG_TIMER_EARLY
310 ret = dm_timer_init();
319 static int initr_bootstage(void)
321 /* We cannot do this before initr_dm() */
322 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
327 __weak int power_init_board(void)
332 static int initr_announce(void)
334 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
338 #ifdef CONFIG_NEEDS_MANUAL_RELOC
339 static int initr_manual_reloc_cmdtable(void)
341 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
342 ll_entry_count(cmd_tbl_t, cmd));
347 #if defined(CONFIG_MTD_NOR_FLASH)
348 static int initr_flash(void)
350 ulong flash_size = 0;
355 if (board_flash_wp_on())
356 printf("Uninitialized - Write Protect On\n");
358 flash_size = flash_init();
360 print_size(flash_size, "");
361 #ifdef CONFIG_SYS_FLASH_CHECKSUM
363 * Compute and print flash CRC if flashchecksum is set to 'y'
365 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
367 if (getenv_yesno("flashchecksum") == 1) {
368 printf(" CRC: %08X", crc32(0,
369 (const unsigned char *) CONFIG_SYS_FLASH_BASE,
372 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
375 /* update start of FLASH memory */
376 #ifdef CONFIG_SYS_FLASH_BASE
377 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
379 /* size of FLASH memory (final value) */
380 bd->bi_flashsize = flash_size;
382 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
383 /* Make a update of the Memctrl. */
384 update_flash_size(flash_size);
388 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
389 /* flash mapped at end of memory map */
390 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
391 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
392 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
398 #if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI)
399 static int initr_spi(void)
401 /* PPC does this here */
403 #if !defined(CONFIG_ENV_IS_IN_EEPROM)
412 #ifdef CONFIG_CMD_NAND
413 /* go init the NAND */
414 static int initr_nand(void)
418 printf("%lu MiB\n", nand_size() / 1024);
423 #if defined(CONFIG_CMD_ONENAND)
424 /* go init the NAND */
425 static int initr_onenand(void)
434 static int initr_mmc(void)
437 mmc_initialize(gd->bd);
442 #ifdef CONFIG_HAS_DATAFLASH
443 static int initr_dataflash(void)
445 AT91F_DataflashInit();
446 dataflash_print_info();
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 set_default_env(NULL);
480 #ifdef CONFIG_OF_CONTROL
481 setenv_addr("fdtcontroladdr", gd->fdt_blob);
484 /* Initialize from environment */
485 load_addr = getenv_ulong("loadaddr", 16, load_addr);
490 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
491 static int initr_malloc_bootparams(void)
493 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
494 if (!gd->bd->bi_boot_params) {
495 puts("WARNING: Cannot allocate space for boot parameters\n");
502 static int initr_jumptable(void)
508 #if defined(CONFIG_API)
509 static int initr_api(void)
517 /* enable exceptions */
518 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
519 static int initr_enable_interrupts(void)
526 #ifdef CONFIG_CMD_NET
527 static int initr_ethaddr(void)
531 /* kept around for legacy kernels only ... ignore the next section */
532 eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
533 #ifdef CONFIG_HAS_ETH1
534 eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
536 #ifdef CONFIG_HAS_ETH2
537 eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
539 #ifdef CONFIG_HAS_ETH3
540 eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
542 #ifdef CONFIG_HAS_ETH4
543 eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
545 #ifdef CONFIG_HAS_ETH5
546 eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
550 #endif /* CONFIG_CMD_NET */
552 #ifdef CONFIG_CMD_KGDB
553 static int initr_kgdb(void)
561 #if defined(CONFIG_LED_STATUS)
562 static int initr_status_led(void)
564 #if defined(CONFIG_LED_STATUS_BOOT)
565 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING);
573 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
574 static int initr_scsi(void)
583 #ifdef CONFIG_BITBANGMII
584 static int initr_bbmii(void)
591 #ifdef CONFIG_CMD_NET
592 static int initr_net(void)
596 #if defined(CONFIG_RESET_PHY_R)
597 debug("Reset Ethernet PHY\n");
605 static int initr_post(void)
607 post_run(NULL, POST_RAM | post_bootmode_get(0));
612 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_IDE)
613 static int initr_pcmcia(void)
621 #if defined(CONFIG_IDE)
622 static int initr_ide(void)
624 #ifdef CONFIG_IDE_8xx_PCCARD
629 #if defined(CONFIG_START_IDE)
630 if (board_start_ide())
639 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
641 * Export available size of memory for Linux, taking into account the
642 * protected RAM at top of memory
650 pram = getenv_ulong("pram", 10, CONFIG_PRAM);
652 # if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
653 /* Also take the logbuffer into account (pram is in kB) */
654 pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
656 sprintf(memsz, "%ldk", (long int) ((gd->ram_size / 1024) - pram));
657 setenv("mem", memsz);
663 #ifdef CONFIG_CMD_BEDBUG
664 static int initr_bedbug(void)
673 static int initr_kbd(void)
681 static int run_main_loop(void)
683 #ifdef CONFIG_SANDBOX
684 sandbox_main_loop_init();
686 /* main_loop() can return to retry autoboot, if so just run it again */
693 * Over time we hope to remove these functions with code fragments and
694 * stub funtcions, and instead call the relevant function directly.
696 * We also hope to remove most of the driver-related init and do it if/when
697 * the driver is later used.
699 * TODO: perhaps reset the watchdog in the initcall function after each call?
701 static init_fnc_t init_sequence_r[] = {
704 /* TODO: could x86/PPC have this also perhaps? */
707 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
708 * A temporary mapping of IFC high region is since removed,
709 * so environmental variables in NOR flash is not availble
710 * until board_init() is called below to remap IFC to high
714 initr_reloc_global_data,
715 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
716 initr_unlock_ram_in_cache,
720 initr_console_record,
721 #ifdef CONFIG_SYS_NONCACHED_MEMORY
729 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32)
730 board_init, /* Setup chipselects */
733 * TODO: printing of the clock inforamtion of the board is now
734 * implemented as part of bdinfo command. Currently only support for
735 * davinci SOC's is added. Remove this check once all the board
739 set_cpu_clk_info, /* Setup clock information */
741 #ifdef CONFIG_EFI_LOADER
747 INIT_FUNC_WATCHDOG_RESET
748 #ifdef CONFIG_NEEDS_MANUAL_RELOC
749 initr_manual_reloc_cmdtable,
751 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
754 #ifdef CONFIG_ADDR_MAP
757 #if defined(CONFIG_BOARD_EARLY_INIT_R)
760 INIT_FUNC_WATCHDOG_RESET
761 #ifdef CONFIG_LOGBUFFER
767 INIT_FUNC_WATCHDOG_RESET
768 #ifdef CONFIG_SYS_DELAYED_ICACHE
771 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
773 * Do early PCI configuration _before_ the flash gets initialised,
774 * because PCU ressources are crucial for flash access on some boards.
778 #ifdef CONFIG_ARCH_EARLY_INIT_R
782 #ifdef CONFIG_MTD_NOR_FLASH
785 INIT_FUNC_WATCHDOG_RESET
786 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
787 /* initialize higher level parts of CPU like time base and timers */
793 #ifdef CONFIG_CMD_NAND
796 #ifdef CONFIG_CMD_ONENAND
802 #ifdef CONFIG_HAS_DATAFLASH
806 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
807 initr_malloc_bootparams,
809 INIT_FUNC_WATCHDOG_RESET
811 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
812 mac_read_from_eeprom,
814 INIT_FUNC_WATCHDOG_RESET
815 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
817 * Do pci configuration
826 console_init_r, /* fully init console as a device */
827 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
830 #ifdef CONFIG_ARCH_MISC_INIT
831 arch_misc_init, /* miscellaneous arch-dependent init */
833 #ifdef CONFIG_MISC_INIT_R
834 misc_init_r, /* miscellaneous platform-dependent init */
836 INIT_FUNC_WATCHDOG_RESET
837 #ifdef CONFIG_CMD_KGDB
841 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
842 initr_enable_interrupts,
844 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) || defined(CONFIG_M68K)
845 timer_init, /* initialize timer */
847 #if defined(CONFIG_LED_STATUS)
850 /* PPC has a udelay(20) here dating from 2002. Why? */
851 #ifdef CONFIG_CMD_NET
854 #ifdef CONFIG_BOARD_LATE_INIT
857 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
858 INIT_FUNC_WATCHDOG_RESET
861 #ifdef CONFIG_BITBANGMII
864 #ifdef CONFIG_CMD_NET
865 INIT_FUNC_WATCHDOG_RESET
871 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_IDE)
874 #if defined(CONFIG_IDE)
877 #ifdef CONFIG_LAST_STAGE_INIT
878 INIT_FUNC_WATCHDOG_RESET
880 * Some parts can be only initialized if all others (like
881 * Interrupts) are up and running (i.e. the PC-style ISA
886 #ifdef CONFIG_CMD_BEDBUG
887 INIT_FUNC_WATCHDOG_RESET
890 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
899 void board_init_r(gd_t *new_gd, ulong dest_addr)
902 * Set up the new global data pointer. So far only x86 does this
905 * dropping the new_gd parameter.
907 #if CONFIG_IS_ENABLED(X86_64)
908 arch_setup_gd(new_gd);
911 #ifdef CONFIG_NEEDS_MANUAL_RELOC
916 mmu_init_r(dest_addr);
919 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
923 #ifdef CONFIG_NEEDS_MANUAL_RELOC
924 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
925 init_sequence_r[i] += gd->reloc_off;
928 if (initcall_run_list(init_sequence_r))
931 /* NOTREACHED - run_main_loop() does not return */