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>
61 #include <asm/arch/mmu.h>
63 #include <efi_loader.h>
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)
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_EXTRA_ENV_RELOC
157 * Some systems need to relocate the env_addr pointer early because the
158 * location it points to will get invalidated before env_relocate is
159 * called. One example is on systems that might use a L2 or L3 cache
160 * in SRAM mode and initialize that cache from SRAM mode back to being
161 * a cache in cpu_init_r.
163 gd->env_addr += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
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
173 efi_runtime_relocate(gd->relocaddr, NULL);
179 static int initr_serial(void)
185 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
186 static int initr_trap(void)
189 * Setup trap handlers
191 #if defined(CONFIG_PPC)
192 trap_init(gd->relocaddr);
194 trap_init(CONFIG_SYS_SDRAM_BASE);
200 #ifdef CONFIG_ADDR_MAP
201 static int initr_addr_map(void)
209 #ifdef CONFIG_LOGBUFFER
210 unsigned long logbuffer_base(void)
212 return gd->ram_top - LOGBUFF_LEN;
215 static int initr_logbuffer(void)
223 static int initr_post_backlog(void)
225 post_output_backlog();
230 #ifdef CONFIG_SYS_DELAYED_ICACHE
231 static int initr_icache_enable(void)
237 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
238 static int initr_unlock_ram_in_cache(void)
240 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
246 static int initr_pci(void)
248 #ifndef CONFIG_DM_PCI
256 static int initr_barrier(void)
259 /* TODO: Can we not use dmb() macros for this? */
265 static int initr_malloc(void)
269 #ifdef CONFIG_SYS_MALLOC_F_LEN
270 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
271 gd->malloc_ptr / 1024);
273 /* The malloc area is immediately below the monitor copy in DRAM */
274 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
275 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
280 static int initr_console_record(void)
282 #if defined(CONFIG_CONSOLE_RECORD)
283 return console_record_init();
289 #ifdef CONFIG_SYS_NONCACHED_MEMORY
290 static int initr_noncached(void)
297 #ifdef CONFIG_OF_LIVE
298 static int initr_of_live(void)
300 return of_live_build(gd->fdt_blob,
301 (struct device_node **)&gd->of_root);
306 static int initr_dm(void)
310 /* Save the pre-reloc driver model and start a new one */
311 gd->dm_root_f = gd->dm_root;
316 bootstage_start(BOOTSTATE_ID_ACCUM_DM_R, "dm_r");
317 ret = dm_init_and_scan(false);
318 bootstage_accum(BOOTSTATE_ID_ACCUM_DM_R);
321 #ifdef CONFIG_TIMER_EARLY
322 ret = dm_timer_init();
331 static int initr_bootstage(void)
333 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
338 __weak int power_init_board(void)
343 static int initr_announce(void)
345 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
349 #ifdef CONFIG_NEEDS_MANUAL_RELOC
350 static int initr_manual_reloc_cmdtable(void)
352 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
353 ll_entry_count(cmd_tbl_t, cmd));
358 #if defined(CONFIG_MTD_NOR_FLASH)
359 static int initr_flash(void)
361 ulong flash_size = 0;
366 if (board_flash_wp_on())
367 printf("Uninitialized - Write Protect On\n");
369 flash_size = flash_init();
371 print_size(flash_size, "");
372 #ifdef CONFIG_SYS_FLASH_CHECKSUM
374 * Compute and print flash CRC if flashchecksum is set to 'y'
376 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
378 if (getenv_yesno("flashchecksum") == 1) {
379 printf(" CRC: %08X", crc32(0,
380 (const unsigned char *) CONFIG_SYS_FLASH_BASE,
383 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
386 /* update start of FLASH memory */
387 #ifdef CONFIG_SYS_FLASH_BASE
388 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
390 /* size of FLASH memory (final value) */
391 bd->bi_flashsize = flash_size;
393 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
394 /* Make a update of the Memctrl. */
395 update_flash_size(flash_size);
399 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
400 /* flash mapped at end of memory map */
401 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
402 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
403 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
409 #if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI)
410 static int initr_spi(void)
412 /* PPC does this here */
414 #if !defined(CONFIG_ENV_IS_IN_EEPROM)
423 #ifdef CONFIG_CMD_NAND
424 /* go init the NAND */
425 static int initr_nand(void)
429 printf("%lu MiB\n", nand_size() / 1024);
434 #if defined(CONFIG_CMD_ONENAND)
435 /* go init the NAND */
436 static int initr_onenand(void)
445 static int initr_mmc(void)
448 mmc_initialize(gd->bd);
453 #ifdef CONFIG_HAS_DATAFLASH
454 static int initr_dataflash(void)
456 AT91F_DataflashInit();
457 dataflash_print_info();
463 * Tell if it's OK to load the environment early in boot.
465 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
466 * if this is OK (defaulting to saying it's OK).
468 * NOTE: Loading the environment early can be a bad idea if security is
469 * important, since no verification is done on the environment.
471 * @return 0 if environment should not be loaded, !=0 if it is ok to load
473 static int should_load_env(void)
475 #ifdef CONFIG_OF_CONTROL
476 return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1);
477 #elif defined CONFIG_DELAY_ENVIRONMENT
484 static int initr_env(void)
486 /* initialize environment */
487 if (should_load_env())
490 set_default_env(NULL);
491 #ifdef CONFIG_OF_CONTROL
492 setenv_addr("fdtcontroladdr", gd->fdt_blob);
495 /* Initialize from environment */
496 load_addr = getenv_ulong("loadaddr", 16, load_addr);
501 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
502 static int initr_malloc_bootparams(void)
504 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
505 if (!gd->bd->bi_boot_params) {
506 puts("WARNING: Cannot allocate space for boot parameters\n");
513 static int initr_jumptable(void)
519 #if defined(CONFIG_API)
520 static int initr_api(void)
528 /* enable exceptions */
529 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
530 static int initr_enable_interrupts(void)
537 #ifdef CONFIG_CMD_NET
538 static int initr_ethaddr(void)
542 /* kept around for legacy kernels only ... ignore the next section */
543 eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
544 #ifdef CONFIG_HAS_ETH1
545 eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
547 #ifdef CONFIG_HAS_ETH2
548 eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
550 #ifdef CONFIG_HAS_ETH3
551 eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
553 #ifdef CONFIG_HAS_ETH4
554 eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
556 #ifdef CONFIG_HAS_ETH5
557 eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
561 #endif /* CONFIG_CMD_NET */
563 #ifdef CONFIG_CMD_KGDB
564 static int initr_kgdb(void)
572 #if defined(CONFIG_LED_STATUS)
573 static int initr_status_led(void)
575 #if defined(CONFIG_LED_STATUS_BOOT)
576 status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING);
584 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
585 static int initr_scsi(void)
594 #ifdef CONFIG_BITBANGMII
595 static int initr_bbmii(void)
602 #ifdef CONFIG_CMD_NET
603 static int initr_net(void)
607 #if defined(CONFIG_RESET_PHY_R)
608 debug("Reset Ethernet PHY\n");
616 static int initr_post(void)
618 post_run(NULL, POST_RAM | post_bootmode_get(0));
623 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_IDE)
624 static int initr_pcmcia(void)
632 #if defined(CONFIG_IDE)
633 static int initr_ide(void)
635 #ifdef CONFIG_IDE_8xx_PCCARD
640 #if defined(CONFIG_START_IDE)
641 if (board_start_ide())
650 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
652 * Export available size of memory for Linux, taking into account the
653 * protected RAM at top of memory
661 pram = getenv_ulong("pram", 10, CONFIG_PRAM);
663 # if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
664 /* Also take the logbuffer into account (pram is in kB) */
665 pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
667 sprintf(memsz, "%ldk", (long int) ((gd->ram_size / 1024) - pram));
668 setenv("mem", memsz);
674 #ifdef CONFIG_CMD_BEDBUG
675 static int initr_bedbug(void)
684 static int initr_kbd(void)
692 static int run_main_loop(void)
694 #ifdef CONFIG_SANDBOX
695 sandbox_main_loop_init();
697 /* main_loop() can return to retry autoboot, if so just run it again */
704 * Over time we hope to remove these functions with code fragments and
705 * stub funtcions, and instead call the relevant function directly.
707 * We also hope to remove most of the driver-related init and do it if/when
708 * the driver is later used.
710 * TODO: perhaps reset the watchdog in the initcall function after each call?
712 static init_fnc_t init_sequence_r[] = {
715 /* TODO: could x86/PPC have this also perhaps? */
718 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
719 * A temporary mapping of IFC high region is since removed,
720 * so environmental variables in NOR flash is not availble
721 * until board_init() is called below to remap IFC to high
725 initr_reloc_global_data,
726 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
727 initr_unlock_ram_in_cache,
731 initr_bootstage, /* Needs malloc() but has its own timer */
732 initr_console_record,
733 #ifdef CONFIG_SYS_NONCACHED_MEMORY
737 #ifdef CONFIG_OF_LIVE
743 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32)
744 board_init, /* Setup chipselects */
747 * TODO: printing of the clock inforamtion of the board is now
748 * implemented as part of bdinfo command. Currently only support for
749 * davinci SOC's is added. Remove this check once all the board
753 set_cpu_clk_info, /* Setup clock information */
755 #ifdef CONFIG_EFI_LOADER
761 INIT_FUNC_WATCHDOG_RESET
762 #ifdef CONFIG_NEEDS_MANUAL_RELOC
763 initr_manual_reloc_cmdtable,
765 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
768 #ifdef CONFIG_ADDR_MAP
771 #if defined(CONFIG_BOARD_EARLY_INIT_R)
774 INIT_FUNC_WATCHDOG_RESET
775 #ifdef CONFIG_LOGBUFFER
781 INIT_FUNC_WATCHDOG_RESET
782 #ifdef CONFIG_SYS_DELAYED_ICACHE
785 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
787 * Do early PCI configuration _before_ the flash gets initialised,
788 * because PCU ressources are crucial for flash access on some boards.
792 #ifdef CONFIG_ARCH_EARLY_INIT_R
796 #ifdef CONFIG_MTD_NOR_FLASH
799 INIT_FUNC_WATCHDOG_RESET
800 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
801 /* initialize higher level parts of CPU like time base and timers */
807 #ifdef CONFIG_CMD_NAND
810 #ifdef CONFIG_CMD_ONENAND
816 #ifdef CONFIG_HAS_DATAFLASH
820 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
821 initr_malloc_bootparams,
823 INIT_FUNC_WATCHDOG_RESET
825 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
826 mac_read_from_eeprom,
828 INIT_FUNC_WATCHDOG_RESET
829 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
831 * Do pci configuration
840 console_init_r, /* fully init console as a device */
841 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
844 #ifdef CONFIG_ARCH_MISC_INIT
845 arch_misc_init, /* miscellaneous arch-dependent init */
847 #ifdef CONFIG_MISC_INIT_R
848 misc_init_r, /* miscellaneous platform-dependent init */
850 INIT_FUNC_WATCHDOG_RESET
851 #ifdef CONFIG_CMD_KGDB
855 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
856 initr_enable_interrupts,
858 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) || defined(CONFIG_M68K)
859 timer_init, /* initialize timer */
861 #if defined(CONFIG_LED_STATUS)
864 /* PPC has a udelay(20) here dating from 2002. Why? */
865 #ifdef CONFIG_CMD_NET
868 #ifdef CONFIG_BOARD_LATE_INIT
871 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
872 INIT_FUNC_WATCHDOG_RESET
875 #ifdef CONFIG_BITBANGMII
878 #ifdef CONFIG_CMD_NET
879 INIT_FUNC_WATCHDOG_RESET
885 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_IDE)
888 #if defined(CONFIG_IDE)
891 #ifdef CONFIG_LAST_STAGE_INIT
892 INIT_FUNC_WATCHDOG_RESET
894 * Some parts can be only initialized if all others (like
895 * Interrupts) are up and running (i.e. the PC-style ISA
900 #ifdef CONFIG_CMD_BEDBUG
901 INIT_FUNC_WATCHDOG_RESET
904 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
913 void board_init_r(gd_t *new_gd, ulong dest_addr)
916 * Set up the new global data pointer. So far only x86 does this
918 * TODO(sjg@chromium.org): Consider doing this for all archs, or
919 * dropping the new_gd parameter.
921 #if CONFIG_IS_ENABLED(X86_64)
922 arch_setup_gd(new_gd);
925 #ifdef CONFIG_NEEDS_MANUAL_RELOC
930 mmu_init_r(dest_addr);
933 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
937 #ifdef CONFIG_NEEDS_MANUAL_RELOC
938 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
939 init_sequence_r[i] += gd->reloc_off;
942 if (initcall_run_list(init_sequence_r))
945 /* NOTREACHED - run_main_loop() does not return */