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>
19 #ifdef CONFIG_HAS_DATAFLASH
20 #include <dataflash.h>
23 #include <environment.h>
25 #if defined(CONFIG_CMD_IDE)
32 #if defined(CONFIG_CMD_KGDB)
38 #ifdef CONFIG_BITBANGMII
43 #include <onenand_uboot.h>
47 #include <stdio_dev.h>
50 #ifdef CONFIG_CMD_AMBAPP
53 #ifdef CONFIG_ADDR_MAP
56 #include <asm/sections.h>
58 #include <asm/init_helpers.h>
61 #include <linux/compiler.h>
62 #include <linux/err.h>
64 #include <asm/arch/mmu.h>
67 DECLARE_GLOBAL_DATA_PTR;
69 #if defined(CONFIG_SPARC)
70 extern int prom_init(void);
73 ulong monitor_flash_len;
75 __weak int board_flash_wp_on(void)
78 * Most flashes can't be detected when write protection is enabled,
79 * so provide a way to let U-Boot gracefully ignore write protected
85 __weak void cpu_secondary_init_r(void)
89 static int initr_secondary_cpu(void)
92 * after non-volatile devices & environment is setup and cpu code have
93 * another round to deal with any initialization that might require
94 * full access to the environment or loading of some image (firmware)
95 * from a non-volatile device
97 /* TODO: maybe define this for all archs? */
98 cpu_secondary_init_r();
103 static int initr_trace(void)
106 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
112 static int initr_reloc(void)
114 /* tell others: relocation done */
115 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
122 * Some of these functions are needed purely because the functions they
123 * call return void. If we change them to return 0, these stubs can go away.
125 static int initr_caches(void)
133 __weak int fixup_cpu(void)
138 static int initr_reloc_global_data(void)
141 monitor_flash_len = _end - __image_copy_start;
142 #elif defined(CONFIG_NDS32)
143 monitor_flash_len = (ulong)&_end - (ulong)&_start;
144 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
145 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
147 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
149 * The gd->cpu pointer is set to an address in flash before relocation.
150 * We need to update it to point to the same CPU entry in RAM.
151 * TODO: why not just add gd->reloc_ofs?
153 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
156 * If we didn't know the cpu mask & # cores, we can save them of
157 * now rather than 'computing' them constantly
161 #ifdef CONFIG_SYS_EXTRA_ENV_RELOC
163 * Some systems need to relocate the env_addr pointer early because the
164 * location it points to will get invalidated before env_relocate is
165 * called. One example is on systems that might use a L2 or L3 cache
166 * in SRAM mode and initialize that cache from SRAM mode back to being
167 * a cache in cpu_init_r.
169 gd->env_addr += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
171 #ifdef CONFIG_OF_EMBED
173 * The fdt_blob needs to be moved to new relocation address
174 * incase of FDT blob is embedded with in image
176 gd->fdt_blob += gd->reloc_off;
182 static int initr_serial(void)
188 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
189 static int initr_trap(void)
192 * Setup trap handlers
194 #if defined(CONFIG_PPC)
195 trap_init(gd->relocaddr);
197 trap_init(CONFIG_SYS_SDRAM_BASE);
203 #ifdef CONFIG_ADDR_MAP
204 static int initr_addr_map(void)
212 #ifdef CONFIG_LOGBUFFER
213 unsigned long logbuffer_base(void)
215 return gd->ram_top - LOGBUFF_LEN;
218 static int initr_logbuffer(void)
226 static int initr_post_backlog(void)
228 post_output_backlog();
233 #ifdef CONFIG_SYS_DELAYED_ICACHE
234 static int initr_icache_enable(void)
240 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
241 static int initr_unlock_ram_in_cache(void)
243 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
249 static int initr_pci(void)
251 #ifndef CONFIG_DM_PCI
259 #ifdef CONFIG_WINBOND_83C553
260 static int initr_w83c553f(void)
263 * Initialise the ISA bridge
265 initialise_w83c553f();
270 static int initr_barrier(void)
273 /* TODO: Can we not use dmb() macros for this? */
279 static int initr_malloc(void)
283 #ifdef CONFIG_SYS_MALLOC_F_LEN
284 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
285 gd->malloc_ptr / 1024);
287 /* The malloc area is immediately below the monitor copy in DRAM */
288 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
289 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
294 static int initr_console_record(void)
296 #if defined(CONFIG_CONSOLE_RECORD)
297 return console_record_init();
303 #ifdef CONFIG_SYS_NONCACHED_MEMORY
304 static int initr_noncached(void)
312 static int initr_dm(void)
314 /* Save the pre-reloc driver model and start a new one */
315 gd->dm_root_f = gd->dm_root;
320 return dm_init_and_scan(false);
324 static int initr_bootstage(void)
326 /* We cannot do this before initr_dm() */
327 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
332 __weak int power_init_board(void)
337 static int initr_announce(void)
339 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
343 #ifdef CONFIG_NEEDS_MANUAL_RELOC
344 static int initr_manual_reloc_cmdtable(void)
346 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
347 ll_entry_count(cmd_tbl_t, cmd));
352 #if !defined(CONFIG_SYS_NO_FLASH)
353 static int initr_flash(void)
355 ulong flash_size = 0;
360 if (board_flash_wp_on())
361 printf("Uninitialized - Write Protect On\n");
363 flash_size = flash_init();
365 print_size(flash_size, "");
366 #ifdef CONFIG_SYS_FLASH_CHECKSUM
368 * Compute and print flash CRC if flashchecksum is set to 'y'
370 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
372 if (getenv_yesno("flashchecksum") == 1) {
373 printf(" CRC: %08X", crc32(0,
374 (const unsigned char *) CONFIG_SYS_FLASH_BASE,
377 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
380 /* update start of FLASH memory */
381 #ifdef CONFIG_SYS_FLASH_BASE
382 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
384 /* size of FLASH memory (final value) */
385 bd->bi_flashsize = flash_size;
387 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
388 /* Make a update of the Memctrl. */
389 update_flash_size(flash_size);
393 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
394 /* flash mapped at end of memory map */
395 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
396 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
397 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
403 #if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI)
404 static int initr_spi(void)
406 /* PPC does this here */
408 #if !defined(CONFIG_ENV_IS_IN_EEPROM)
417 #ifdef CONFIG_CMD_NAND
418 /* go init the NAND */
419 static int initr_nand(void)
427 #if defined(CONFIG_CMD_ONENAND)
428 /* go init the NAND */
429 static int initr_onenand(void)
437 #ifdef CONFIG_GENERIC_MMC
438 static int initr_mmc(void)
441 mmc_initialize(gd->bd);
446 #ifdef CONFIG_HAS_DATAFLASH
447 static int initr_dataflash(void)
449 AT91F_DataflashInit();
450 dataflash_print_info();
456 * Tell if it's OK to load the environment early in boot.
458 * If CONFIG_OF_CONFIG is defined, we'll check with the FDT to see
459 * if this is OK (defaulting to saying it's OK).
461 * NOTE: Loading the environment early can be a bad idea if security is
462 * important, since no verification is done on the environment.
464 * @return 0 if environment should not be loaded, !=0 if it is ok to load
466 static int should_load_env(void)
468 #ifdef CONFIG_OF_CONTROL
469 return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1);
470 #elif defined CONFIG_DELAY_ENVIRONMENT
477 static int initr_env(void)
479 /* initialize environment */
480 if (should_load_env())
483 set_default_env(NULL);
484 #ifdef CONFIG_OF_CONTROL
485 setenv_addr("fdtcontroladdr", gd->fdt_blob);
488 /* Initialize from environment */
489 load_addr = getenv_ulong("loadaddr", 16, load_addr);
490 #if defined(CONFIG_SYS_EXTBDINFO)
491 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
492 #if defined(CONFIG_I2CFAST)
494 * set bi_iic_fast for linux taking environment variable
495 * "i2cfast" into account
498 char *s = getenv("i2cfast");
500 if (s && ((*s == 'y') || (*s == 'Y'))) {
501 gd->bd->bi_iic_fast[0] = 1;
502 gd->bd->bi_iic_fast[1] = 1;
505 #endif /* CONFIG_I2CFAST */
506 #endif /* CONFIG_405GP, CONFIG_405EP */
507 #endif /* CONFIG_SYS_EXTBDINFO */
511 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
512 static int initr_malloc_bootparams(void)
514 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
515 if (!gd->bd->bi_boot_params) {
516 puts("WARNING: Cannot allocate space for boot parameters\n");
523 static int initr_jumptable(void)
529 #if defined(CONFIG_API)
530 static int initr_api(void)
538 /* enable exceptions */
539 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
540 static int initr_enable_interrupts(void)
547 #ifdef CONFIG_CMD_NET
548 static int initr_ethaddr(void)
552 /* kept around for legacy kernels only ... ignore the next section */
553 eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
554 #ifdef CONFIG_HAS_ETH1
555 eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
557 #ifdef CONFIG_HAS_ETH2
558 eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
560 #ifdef CONFIG_HAS_ETH3
561 eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
563 #ifdef CONFIG_HAS_ETH4
564 eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
566 #ifdef CONFIG_HAS_ETH5
567 eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
571 #endif /* CONFIG_CMD_NET */
573 #ifdef CONFIG_CMD_KGDB
574 static int initr_kgdb(void)
582 #if defined(CONFIG_STATUS_LED)
583 static int initr_status_led(void)
585 #if defined(STATUS_LED_BOOT)
586 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
594 #if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
595 extern int do_ambapp_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
597 static int initr_ambapp_print(void)
600 do_ambapp_print(NULL, 0, 0, NULL);
606 #if defined(CONFIG_CMD_SCSI)
607 static int initr_scsi(void)
616 #if defined(CONFIG_CMD_DOC)
617 static int initr_doc(void)
625 #ifdef CONFIG_BITBANGMII
626 static int initr_bbmii(void)
633 #ifdef CONFIG_CMD_NET
634 static int initr_net(void)
638 #if defined(CONFIG_RESET_PHY_R)
639 debug("Reset Ethernet PHY\n");
647 static int initr_post(void)
649 post_run(NULL, POST_RAM | post_bootmode_get(0));
654 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
655 static int initr_pcmcia(void)
663 #if defined(CONFIG_CMD_IDE)
664 static int initr_ide(void)
666 #ifdef CONFIG_IDE_8xx_PCCARD
671 #if defined(CONFIG_START_IDE)
672 if (board_start_ide())
681 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
683 * Export available size of memory for Linux, taking into account the
684 * protected RAM at top of memory
692 pram = getenv_ulong("pram", 10, CONFIG_PRAM);
694 # if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
695 /* Also take the logbuffer into account (pram is in kB) */
696 pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
698 sprintf(memsz, "%ldk", (long int) ((gd->ram_size / 1024) - pram));
699 setenv("mem", memsz);
705 #ifdef CONFIG_CMD_BEDBUG
706 static int initr_bedbug(void)
715 static int initr_kbd(void)
723 static int run_main_loop(void)
725 #ifdef CONFIG_SANDBOX
726 sandbox_main_loop_init();
728 /* main_loop() can return to retry autoboot, if so just run it again */
735 * Over time we hope to remove these functions with code fragments and
736 * stub funtcions, and instead call the relevant function directly.
738 * We also hope to remove most of the driver-related init and do it if/when
739 * the driver is later used.
741 * TODO: perhaps reset the watchdog in the initcall function after each call?
743 init_fnc_t init_sequence_r[] = {
746 /* TODO: could x86/PPC have this also perhaps? */
749 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
750 * A temporary mapping of IFC high region is since removed,
751 * so environmental variables in NOR flash is not availble
752 * until board_init() is called below to remap IFC to high
756 initr_reloc_global_data,
757 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
758 initr_unlock_ram_in_cache,
762 initr_console_record,
763 #ifdef CONFIG_SYS_NONCACHED_MEMORY
771 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32)
772 board_init, /* Setup chipselects */
775 * TODO: printing of the clock inforamtion of the board is now
776 * implemented as part of bdinfo command. Currently only support for
777 * davinci SOC's is added. Remove this check once all the board
781 set_cpu_clk_info, /* Setup clock information */
786 INIT_FUNC_WATCHDOG_RESET
787 #ifdef CONFIG_NEEDS_MANUAL_RELOC
788 initr_manual_reloc_cmdtable,
790 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
793 #ifdef CONFIG_ADDR_MAP
796 #if defined(CONFIG_BOARD_EARLY_INIT_R)
799 INIT_FUNC_WATCHDOG_RESET
800 #ifdef CONFIG_LOGBUFFER
806 INIT_FUNC_WATCHDOG_RESET
807 #ifdef CONFIG_SYS_DELAYED_ICACHE
810 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
812 * Do early PCI configuration _before_ the flash gets initialised,
813 * because PCU ressources are crucial for flash access on some boards.
817 #ifdef CONFIG_WINBOND_83C553
820 #ifdef CONFIG_ARCH_EARLY_INIT_R
824 #ifndef CONFIG_SYS_NO_FLASH
827 INIT_FUNC_WATCHDOG_RESET
828 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86) || \
829 defined(CONFIG_SPARC)
830 /* initialize higher level parts of CPU like time base and timers */
836 #ifdef CONFIG_CMD_NAND
839 #ifdef CONFIG_CMD_ONENAND
842 #ifdef CONFIG_GENERIC_MMC
845 #ifdef CONFIG_HAS_DATAFLASH
849 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
850 initr_malloc_bootparams,
852 INIT_FUNC_WATCHDOG_RESET
854 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
855 mac_read_from_eeprom,
857 INIT_FUNC_WATCHDOG_RESET
858 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
860 * Do pci configuration
869 console_init_r, /* fully init console as a device */
870 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
873 #ifdef CONFIG_ARCH_MISC_INIT
874 arch_misc_init, /* miscellaneous arch-dependent init */
876 #ifdef CONFIG_MISC_INIT_R
877 misc_init_r, /* miscellaneous platform-dependent init */
879 INIT_FUNC_WATCHDOG_RESET
880 #ifdef CONFIG_CMD_KGDB
884 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
885 initr_enable_interrupts,
887 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) || defined(CONFIG_M68K)
888 timer_init, /* initialize timer */
890 #if defined(CONFIG_STATUS_LED)
893 /* PPC has a udelay(20) here dating from 2002. Why? */
894 #ifdef CONFIG_CMD_NET
897 #ifdef CONFIG_BOARD_LATE_INIT
900 #if defined(CONFIG_CMD_AMBAPP)
902 #if defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
906 #ifdef CONFIG_CMD_SCSI
907 INIT_FUNC_WATCHDOG_RESET
910 #ifdef CONFIG_CMD_DOC
911 INIT_FUNC_WATCHDOG_RESET
914 #ifdef CONFIG_BITBANGMII
917 #ifdef CONFIG_CMD_NET
918 INIT_FUNC_WATCHDOG_RESET
924 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
927 #if defined(CONFIG_CMD_IDE)
930 #ifdef CONFIG_LAST_STAGE_INIT
931 INIT_FUNC_WATCHDOG_RESET
933 * Some parts can be only initialized if all others (like
934 * Interrupts) are up and running (i.e. the PC-style ISA
939 #ifdef CONFIG_CMD_BEDBUG
940 INIT_FUNC_WATCHDOG_RESET
943 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
949 #if defined(CONFIG_SPARC)
955 void board_init_r(gd_t *new_gd, ulong dest_addr)
957 #ifdef CONFIG_NEEDS_MANUAL_RELOC
962 mmu_init_r(dest_addr);
965 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
969 #ifdef CONFIG_NEEDS_MANUAL_RELOC
970 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
971 init_sequence_r[i] += gd->reloc_off;
974 if (initcall_run_list(init_sequence_r))
977 /* NOTREACHED - run_main_loop() does not return */