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;
328 ret = dm_init_and_scan(false);
331 #ifdef CONFIG_TIMER_EARLY
332 ret = dm_timer_init();
341 static int initr_bootstage(void)
343 /* We cannot do this before initr_dm() */
344 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
349 __weak int power_init_board(void)
354 static int initr_announce(void)
356 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
360 #ifdef CONFIG_NEEDS_MANUAL_RELOC
361 static int initr_manual_reloc_cmdtable(void)
363 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
364 ll_entry_count(cmd_tbl_t, cmd));
369 #if !defined(CONFIG_SYS_NO_FLASH)
370 static int initr_flash(void)
372 ulong flash_size = 0;
377 if (board_flash_wp_on())
378 printf("Uninitialized - Write Protect On\n");
380 flash_size = flash_init();
382 print_size(flash_size, "");
383 #ifdef CONFIG_SYS_FLASH_CHECKSUM
385 * Compute and print flash CRC if flashchecksum is set to 'y'
387 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
389 if (getenv_yesno("flashchecksum") == 1) {
390 printf(" CRC: %08X", crc32(0,
391 (const unsigned char *) CONFIG_SYS_FLASH_BASE,
394 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
397 /* update start of FLASH memory */
398 #ifdef CONFIG_SYS_FLASH_BASE
399 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
401 /* size of FLASH memory (final value) */
402 bd->bi_flashsize = flash_size;
404 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
405 /* Make a update of the Memctrl. */
406 update_flash_size(flash_size);
410 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
411 /* flash mapped at end of memory map */
412 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
413 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
414 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
420 #if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI)
421 static int initr_spi(void)
423 /* PPC does this here */
425 #if !defined(CONFIG_ENV_IS_IN_EEPROM)
434 #ifdef CONFIG_CMD_NAND
435 /* go init the NAND */
436 static int initr_nand(void)
444 #if defined(CONFIG_CMD_ONENAND)
445 /* go init the NAND */
446 static int initr_onenand(void)
454 #ifdef CONFIG_GENERIC_MMC
455 static int initr_mmc(void)
458 mmc_initialize(gd->bd);
463 #ifdef CONFIG_HAS_DATAFLASH
464 static int initr_dataflash(void)
466 AT91F_DataflashInit();
467 dataflash_print_info();
473 * Tell if it's OK to load the environment early in boot.
475 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
476 * if this is OK (defaulting to saying it's OK).
478 * NOTE: Loading the environment early can be a bad idea if security is
479 * important, since no verification is done on the environment.
481 * @return 0 if environment should not be loaded, !=0 if it is ok to load
483 static int should_load_env(void)
485 #ifdef CONFIG_OF_CONTROL
486 return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1);
487 #elif defined CONFIG_DELAY_ENVIRONMENT
494 static int initr_env(void)
496 /* initialize environment */
497 if (should_load_env())
500 set_default_env(NULL);
501 #ifdef CONFIG_OF_CONTROL
502 setenv_addr("fdtcontroladdr", gd->fdt_blob);
505 /* Initialize from environment */
506 load_addr = getenv_ulong("loadaddr", 16, load_addr);
507 #if defined(CONFIG_SYS_EXTBDINFO)
508 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
509 #if defined(CONFIG_I2CFAST)
511 * set bi_iic_fast for linux taking environment variable
512 * "i2cfast" into account
515 char *s = getenv("i2cfast");
517 if (s && ((*s == 'y') || (*s == 'Y'))) {
518 gd->bd->bi_iic_fast[0] = 1;
519 gd->bd->bi_iic_fast[1] = 1;
522 #endif /* CONFIG_I2CFAST */
523 #endif /* CONFIG_405GP, CONFIG_405EP */
524 #endif /* CONFIG_SYS_EXTBDINFO */
528 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
529 static int initr_malloc_bootparams(void)
531 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
532 if (!gd->bd->bi_boot_params) {
533 puts("WARNING: Cannot allocate space for boot parameters\n");
540 static int initr_jumptable(void)
546 #if defined(CONFIG_API)
547 static int initr_api(void)
555 /* enable exceptions */
556 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
557 static int initr_enable_interrupts(void)
564 #ifdef CONFIG_CMD_NET
565 static int initr_ethaddr(void)
569 /* kept around for legacy kernels only ... ignore the next section */
570 eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
571 #ifdef CONFIG_HAS_ETH1
572 eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
574 #ifdef CONFIG_HAS_ETH2
575 eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
577 #ifdef CONFIG_HAS_ETH3
578 eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
580 #ifdef CONFIG_HAS_ETH4
581 eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
583 #ifdef CONFIG_HAS_ETH5
584 eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
588 #endif /* CONFIG_CMD_NET */
590 #ifdef CONFIG_CMD_KGDB
591 static int initr_kgdb(void)
599 #if defined(CONFIG_STATUS_LED)
600 static int initr_status_led(void)
602 #if defined(STATUS_LED_BOOT)
603 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
611 #if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
612 extern int do_ambapp_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
614 static int initr_ambapp_print(void)
617 do_ambapp_print(NULL, 0, 0, NULL);
623 #if defined(CONFIG_SCSI)
624 static int initr_scsi(void)
633 #if defined(CONFIG_CMD_DOC)
634 static int initr_doc(void)
642 #ifdef CONFIG_BITBANGMII
643 static int initr_bbmii(void)
650 #ifdef CONFIG_CMD_NET
651 static int initr_net(void)
655 #if defined(CONFIG_RESET_PHY_R)
656 debug("Reset Ethernet PHY\n");
664 static int initr_post(void)
666 post_run(NULL, POST_RAM | post_bootmode_get(0));
671 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
672 static int initr_pcmcia(void)
680 #if defined(CONFIG_CMD_IDE)
681 static int initr_ide(void)
683 #ifdef CONFIG_IDE_8xx_PCCARD
688 #if defined(CONFIG_START_IDE)
689 if (board_start_ide())
698 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
700 * Export available size of memory for Linux, taking into account the
701 * protected RAM at top of memory
709 pram = getenv_ulong("pram", 10, CONFIG_PRAM);
711 # if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
712 /* Also take the logbuffer into account (pram is in kB) */
713 pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
715 sprintf(memsz, "%ldk", (long int) ((gd->ram_size / 1024) - pram));
716 setenv("mem", memsz);
722 #ifdef CONFIG_CMD_BEDBUG
723 static int initr_bedbug(void)
732 static int initr_kbd(void)
740 static int run_main_loop(void)
742 #ifdef CONFIG_SANDBOX
743 sandbox_main_loop_init();
745 /* main_loop() can return to retry autoboot, if so just run it again */
752 * Over time we hope to remove these functions with code fragments and
753 * stub funtcions, and instead call the relevant function directly.
755 * We also hope to remove most of the driver-related init and do it if/when
756 * the driver is later used.
758 * TODO: perhaps reset the watchdog in the initcall function after each call?
760 init_fnc_t init_sequence_r[] = {
763 /* TODO: could x86/PPC have this also perhaps? */
766 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
767 * A temporary mapping of IFC high region is since removed,
768 * so environmental variables in NOR flash is not availble
769 * until board_init() is called below to remap IFC to high
773 initr_reloc_global_data,
774 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
775 initr_unlock_ram_in_cache,
779 initr_console_record,
780 #ifdef CONFIG_SYS_NONCACHED_MEMORY
788 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32)
789 board_init, /* Setup chipselects */
792 * TODO: printing of the clock inforamtion of the board is now
793 * implemented as part of bdinfo command. Currently only support for
794 * davinci SOC's is added. Remove this check once all the board
798 set_cpu_clk_info, /* Setup clock information */
800 #ifdef CONFIG_EFI_LOADER
806 INIT_FUNC_WATCHDOG_RESET
807 #ifdef CONFIG_NEEDS_MANUAL_RELOC
808 initr_manual_reloc_cmdtable,
810 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
813 #ifdef CONFIG_ADDR_MAP
816 #if defined(CONFIG_BOARD_EARLY_INIT_R)
819 INIT_FUNC_WATCHDOG_RESET
820 #ifdef CONFIG_LOGBUFFER
826 INIT_FUNC_WATCHDOG_RESET
827 #ifdef CONFIG_SYS_DELAYED_ICACHE
830 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
832 * Do early PCI configuration _before_ the flash gets initialised,
833 * because PCU ressources are crucial for flash access on some boards.
837 #ifdef CONFIG_WINBOND_83C553
840 #ifdef CONFIG_ARCH_EARLY_INIT_R
844 #ifndef CONFIG_SYS_NO_FLASH
847 INIT_FUNC_WATCHDOG_RESET
848 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86) || \
849 defined(CONFIG_SPARC)
850 /* initialize higher level parts of CPU like time base and timers */
856 #ifdef CONFIG_CMD_NAND
859 #ifdef CONFIG_CMD_ONENAND
862 #ifdef CONFIG_GENERIC_MMC
865 #ifdef CONFIG_HAS_DATAFLASH
869 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
870 initr_malloc_bootparams,
872 INIT_FUNC_WATCHDOG_RESET
874 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
875 mac_read_from_eeprom,
877 INIT_FUNC_WATCHDOG_RESET
878 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
880 * Do pci configuration
889 console_init_r, /* fully init console as a device */
890 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
893 #ifdef CONFIG_ARCH_MISC_INIT
894 arch_misc_init, /* miscellaneous arch-dependent init */
896 #ifdef CONFIG_MISC_INIT_R
897 misc_init_r, /* miscellaneous platform-dependent init */
899 INIT_FUNC_WATCHDOG_RESET
900 #ifdef CONFIG_CMD_KGDB
904 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
905 initr_enable_interrupts,
907 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) || defined(CONFIG_M68K)
908 timer_init, /* initialize timer */
910 #if defined(CONFIG_STATUS_LED)
913 /* PPC has a udelay(20) here dating from 2002. Why? */
914 #ifdef CONFIG_CMD_NET
917 #ifdef CONFIG_BOARD_LATE_INIT
920 #if defined(CONFIG_CMD_AMBAPP)
922 #if defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
927 INIT_FUNC_WATCHDOG_RESET
930 #ifdef CONFIG_CMD_DOC
931 INIT_FUNC_WATCHDOG_RESET
934 #ifdef CONFIG_BITBANGMII
937 #ifdef CONFIG_CMD_NET
938 INIT_FUNC_WATCHDOG_RESET
944 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
947 #if defined(CONFIG_CMD_IDE)
950 #ifdef CONFIG_LAST_STAGE_INIT
951 INIT_FUNC_WATCHDOG_RESET
953 * Some parts can be only initialized if all others (like
954 * Interrupts) are up and running (i.e. the PC-style ISA
959 #ifdef CONFIG_CMD_BEDBUG
960 INIT_FUNC_WATCHDOG_RESET
963 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
969 #if defined(CONFIG_SPARC)
975 void board_init_r(gd_t *new_gd, ulong dest_addr)
977 #ifdef CONFIG_NEEDS_MANUAL_RELOC
982 mmu_init_r(dest_addr);
985 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
989 #ifdef CONFIG_NEEDS_MANUAL_RELOC
990 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
991 init_sequence_r[i] += gd->reloc_off;
994 if (initcall_run_list(init_sequence_r))
997 /* NOTREACHED - run_main_loop() does not return */