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>
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 ulong monitor_flash_len;
71 __weak int board_flash_wp_on(void)
74 * Most flashes can't be detected when write protection is enabled,
75 * so provide a way to let U-Boot gracefully ignore write protected
81 __weak void cpu_secondary_init_r(void)
85 static int initr_secondary_cpu(void)
88 * after non-volatile devices & environment is setup and cpu code have
89 * another round to deal with any initialization that might require
90 * full access to the environment or loading of some image (firmware)
91 * from a non-volatile device
93 /* TODO: maybe define this for all archs? */
94 cpu_secondary_init_r();
99 static int initr_trace(void)
102 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
108 static int initr_reloc(void)
110 /* tell others: relocation done */
111 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
112 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
119 * Some of these functions are needed purely because the functions they
120 * call return void. If we change them to return 0, these stubs can go away.
122 static int initr_caches(void)
130 __weak int fixup_cpu(void)
135 static int initr_reloc_global_data(void)
138 monitor_flash_len = _end - __image_copy_start;
139 #elif defined(CONFIG_NDS32)
140 monitor_flash_len = (ulong)&_end - (ulong)&_start;
141 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
142 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
144 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
146 * The gd->cpu pointer is set to an address in flash before relocation.
147 * We need to update it to point to the same CPU entry in RAM.
148 * TODO: why not just add gd->reloc_ofs?
150 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
153 * If we didn't know the cpu mask & # cores, we can save them of
154 * now rather than 'computing' them constantly
158 #ifdef CONFIG_SYS_EXTRA_ENV_RELOC
160 * Some systems need to relocate the env_addr pointer early because the
161 * location it points to will get invalidated before env_relocate is
162 * called. One example is on systems that might use a L2 or L3 cache
163 * in SRAM mode and initialize that cache from SRAM mode back to being
164 * a cache in cpu_init_r.
166 gd->env_addr += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
171 static int initr_serial(void)
177 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
178 static int initr_trap(void)
181 * Setup trap handlers
183 #if defined(CONFIG_PPC)
184 trap_init(gd->relocaddr);
186 trap_init(CONFIG_SYS_SDRAM_BASE);
192 #ifdef CONFIG_ADDR_MAP
193 static int initr_addr_map(void)
201 #ifdef CONFIG_LOGBUFFER
202 unsigned long logbuffer_base(void)
204 return gd->ram_top - LOGBUFF_LEN;
207 static int initr_logbuffer(void)
215 static int initr_post_backlog(void)
217 post_output_backlog();
222 #ifdef CONFIG_SYS_DELAYED_ICACHE
223 static int initr_icache_enable(void)
229 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
230 static int initr_unlock_ram_in_cache(void)
232 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
238 static int initr_pci(void)
240 #ifndef CONFIG_DM_PCI
248 #ifdef CONFIG_WINBOND_83C553
249 static int initr_w83c553f(void)
252 * Initialise the ISA bridge
254 initialise_w83c553f();
259 static int initr_barrier(void)
262 /* TODO: Can we not use dmb() macros for this? */
268 static int initr_malloc(void)
272 #ifdef CONFIG_SYS_MALLOC_F_LEN
273 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
274 gd->malloc_ptr / 1024);
276 /* The malloc area is immediately below the monitor copy in DRAM */
277 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
278 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
283 static int initr_console_record(void)
285 #if defined(CONFIG_CONSOLE_RECORD)
286 return console_record_init();
292 #ifdef CONFIG_SYS_NONCACHED_MEMORY
293 static int initr_noncached(void)
301 static int initr_dm(void)
303 /* Save the pre-reloc driver model and start a new one */
304 gd->dm_root_f = gd->dm_root;
309 return dm_init_and_scan(false);
313 __weak int power_init_board(void)
318 static int initr_announce(void)
320 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
324 #ifdef CONFIG_NEEDS_MANUAL_RELOC
325 static int initr_manual_reloc_cmdtable(void)
327 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
328 ll_entry_count(cmd_tbl_t, cmd));
333 #if !defined(CONFIG_SYS_NO_FLASH)
334 static int initr_flash(void)
336 ulong flash_size = 0;
341 if (board_flash_wp_on())
342 printf("Uninitialized - Write Protect On\n");
344 flash_size = flash_init();
346 print_size(flash_size, "");
347 #ifdef CONFIG_SYS_FLASH_CHECKSUM
349 * Compute and print flash CRC if flashchecksum is set to 'y'
351 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
353 if (getenv_yesno("flashchecksum") == 1) {
354 printf(" CRC: %08X", crc32(0,
355 (const unsigned char *) CONFIG_SYS_FLASH_BASE,
358 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
361 /* update start of FLASH memory */
362 #ifdef CONFIG_SYS_FLASH_BASE
363 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
365 /* size of FLASH memory (final value) */
366 bd->bi_flashsize = flash_size;
368 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
369 /* Make a update of the Memctrl. */
370 update_flash_size(flash_size);
374 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
375 /* flash mapped at end of memory map */
376 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
377 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
378 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
384 #if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI)
385 static int initr_spi(void)
387 /* PPC does this here */
389 #if !defined(CONFIG_ENV_IS_IN_EEPROM)
398 #ifdef CONFIG_CMD_NAND
399 /* go init the NAND */
400 static int initr_nand(void)
408 #if defined(CONFIG_CMD_ONENAND)
409 /* go init the NAND */
410 static int initr_onenand(void)
418 #ifdef CONFIG_GENERIC_MMC
419 static int initr_mmc(void)
422 mmc_initialize(gd->bd);
427 #ifdef CONFIG_HAS_DATAFLASH
428 static int initr_dataflash(void)
430 AT91F_DataflashInit();
431 dataflash_print_info();
437 * Tell if it's OK to load the environment early in boot.
439 * If CONFIG_OF_CONFIG is defined, we'll check with the FDT to see
440 * if this is OK (defaulting to saying it's OK).
442 * NOTE: Loading the environment early can be a bad idea if security is
443 * important, since no verification is done on the environment.
445 * @return 0 if environment should not be loaded, !=0 if it is ok to load
447 static int should_load_env(void)
449 #ifdef CONFIG_OF_CONTROL
450 return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1);
451 #elif defined CONFIG_DELAY_ENVIRONMENT
458 static int initr_env(void)
460 /* initialize environment */
461 if (should_load_env())
464 set_default_env(NULL);
465 #ifdef CONFIG_OF_CONTROL
466 setenv_addr("fdtcontroladdr", gd->fdt_blob);
469 /* Initialize from environment */
470 load_addr = getenv_ulong("loadaddr", 16, load_addr);
471 #if defined(CONFIG_SYS_EXTBDINFO)
472 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
473 #if defined(CONFIG_I2CFAST)
475 * set bi_iic_fast for linux taking environment variable
476 * "i2cfast" into account
479 char *s = getenv("i2cfast");
481 if (s && ((*s == 'y') || (*s == 'Y'))) {
482 gd->bd->bi_iic_fast[0] = 1;
483 gd->bd->bi_iic_fast[1] = 1;
486 #endif /* CONFIG_I2CFAST */
487 #endif /* CONFIG_405GP, CONFIG_405EP */
488 #endif /* CONFIG_SYS_EXTBDINFO */
492 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
493 static int initr_malloc_bootparams(void)
495 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
496 if (!gd->bd->bi_boot_params) {
497 puts("WARNING: Cannot allocate space for boot parameters\n");
504 static int initr_jumptable(void)
510 #if defined(CONFIG_API)
511 static int initr_api(void)
519 /* enable exceptions */
520 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
521 static int initr_enable_interrupts(void)
528 #ifdef CONFIG_CMD_NET
529 static int initr_ethaddr(void)
533 /* kept around for legacy kernels only ... ignore the next section */
534 eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
535 #ifdef CONFIG_HAS_ETH1
536 eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
538 #ifdef CONFIG_HAS_ETH2
539 eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
541 #ifdef CONFIG_HAS_ETH3
542 eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
544 #ifdef CONFIG_HAS_ETH4
545 eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
547 #ifdef CONFIG_HAS_ETH5
548 eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
552 #endif /* CONFIG_CMD_NET */
554 #ifdef CONFIG_CMD_KGDB
555 static int initr_kgdb(void)
563 #if defined(CONFIG_STATUS_LED)
564 static int initr_status_led(void)
566 #if defined(STATUS_LED_BOOT)
567 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
575 #if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
576 extern int do_ambapp_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
578 static int initr_ambapp_print(void)
581 do_ambapp_print(NULL, 0, 0, NULL);
587 #if defined(CONFIG_CMD_SCSI)
588 static int initr_scsi(void)
597 #if defined(CONFIG_CMD_DOC)
598 static int initr_doc(void)
606 #ifdef CONFIG_BITBANGMII
607 static int initr_bbmii(void)
614 #ifdef CONFIG_CMD_NET
615 static int initr_net(void)
619 #if defined(CONFIG_RESET_PHY_R)
620 debug("Reset Ethernet PHY\n");
628 static int initr_post(void)
630 post_run(NULL, POST_RAM | post_bootmode_get(0));
635 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
636 static int initr_pcmcia(void)
644 #if defined(CONFIG_CMD_IDE)
645 static int initr_ide(void)
647 #ifdef CONFIG_IDE_8xx_PCCARD
652 #if defined(CONFIG_START_IDE)
653 if (board_start_ide())
662 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
664 * Export available size of memory for Linux, taking into account the
665 * protected RAM at top of memory
673 pram = getenv_ulong("pram", 10, CONFIG_PRAM);
675 # if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
676 /* Also take the logbuffer into account (pram is in kB) */
677 pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
679 sprintf(memsz, "%ldk", (long int) ((gd->ram_size / 1024) - pram));
680 setenv("mem", memsz);
686 #ifdef CONFIG_CMD_BEDBUG
687 static int initr_bedbug(void)
696 static int initr_kbd(void)
704 static int run_main_loop(void)
706 #ifdef CONFIG_SANDBOX
707 sandbox_main_loop_init();
709 /* main_loop() can return to retry autoboot, if so just run it again */
716 * Over time we hope to remove these functions with code fragments and
717 * stub funtcions, and instead call the relevant function directly.
719 * We also hope to remove most of the driver-related init and do it if/when
720 * the driver is later used.
722 * TODO: perhaps reset the watchdog in the initcall function after each call?
724 init_fnc_t init_sequence_r[] = {
727 /* TODO: could x86/PPC have this also perhaps? */
730 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
731 * A temporary mapping of IFC high region is since removed,
732 * so environmental variables in NOR flash is not availble
733 * until board_init() is called below to remap IFC to high
737 initr_reloc_global_data,
738 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
739 initr_unlock_ram_in_cache,
743 initr_console_record,
744 #ifdef CONFIG_SYS_NONCACHED_MEMORY
751 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32)
752 board_init, /* Setup chipselects */
755 * TODO: printing of the clock inforamtion of the board is now
756 * implemented as part of bdinfo command. Currently only support for
757 * davinci SOC's is added. Remove this check once all the board
761 set_cpu_clk_info, /* Setup clock information */
766 INIT_FUNC_WATCHDOG_RESET
767 #ifdef CONFIG_NEEDS_MANUAL_RELOC
768 initr_manual_reloc_cmdtable,
770 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
773 #ifdef CONFIG_ADDR_MAP
776 #if defined(CONFIG_BOARD_EARLY_INIT_R)
779 INIT_FUNC_WATCHDOG_RESET
780 #ifdef CONFIG_LOGBUFFER
786 INIT_FUNC_WATCHDOG_RESET
787 #ifdef CONFIG_SYS_DELAYED_ICACHE
790 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
792 * Do early PCI configuration _before_ the flash gets initialised,
793 * because PCU ressources are crucial for flash access on some boards.
797 #ifdef CONFIG_WINBOND_83C553
800 #ifdef CONFIG_ARCH_EARLY_INIT_R
804 #ifndef CONFIG_SYS_NO_FLASH
807 INIT_FUNC_WATCHDOG_RESET
808 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
809 /* initialize higher level parts of CPU like time base and timers */
815 #ifdef CONFIG_CMD_NAND
818 #ifdef CONFIG_CMD_ONENAND
821 #ifdef CONFIG_GENERIC_MMC
824 #ifdef CONFIG_HAS_DATAFLASH
828 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
829 initr_malloc_bootparams,
831 INIT_FUNC_WATCHDOG_RESET
833 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
834 mac_read_from_eeprom,
836 INIT_FUNC_WATCHDOG_RESET
837 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
839 * Do pci configuration
848 console_init_r, /* fully init console as a device */
849 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
852 #ifdef CONFIG_ARCH_MISC_INIT
853 arch_misc_init, /* miscellaneous arch-dependent init */
855 #ifdef CONFIG_MISC_INIT_R
856 misc_init_r, /* miscellaneous platform-dependent init */
858 INIT_FUNC_WATCHDOG_RESET
859 #ifdef CONFIG_CMD_KGDB
863 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
864 initr_enable_interrupts,
866 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) || defined(CONFIG_M68K)
867 timer_init, /* initialize timer */
869 #if defined(CONFIG_STATUS_LED)
872 /* PPC has a udelay(20) here dating from 2002. Why? */
873 #ifdef CONFIG_CMD_NET
876 #ifdef CONFIG_BOARD_LATE_INIT
879 #if defined(CONFIG_CMD_AMBAPP)
881 #if defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
885 #ifdef CONFIG_CMD_SCSI
886 INIT_FUNC_WATCHDOG_RESET
889 #ifdef CONFIG_CMD_DOC
890 INIT_FUNC_WATCHDOG_RESET
893 #ifdef CONFIG_BITBANGMII
896 #ifdef CONFIG_CMD_NET
897 INIT_FUNC_WATCHDOG_RESET
903 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
906 #if defined(CONFIG_CMD_IDE)
909 #ifdef CONFIG_LAST_STAGE_INIT
910 INIT_FUNC_WATCHDOG_RESET
912 * Some parts can be only initialized if all others (like
913 * Interrupts) are up and running (i.e. the PC-style ISA
918 #ifdef CONFIG_CMD_BEDBUG
919 INIT_FUNC_WATCHDOG_RESET
922 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
931 void board_init_r(gd_t *new_gd, ulong dest_addr)
933 #ifdef CONFIG_NEEDS_MANUAL_RELOC
938 mmu_init_r(dest_addr);
941 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
945 #ifdef CONFIG_NEEDS_MANUAL_RELOC
946 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
947 init_sequence_r[i] += gd->reloc_off;
950 if (initcall_run_list(init_sequence_r))
953 /* NOTREACHED - run_main_loop() does not return */