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>
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>
51 #ifdef CONFIG_CMD_AMBAPP
54 #ifdef CONFIG_ADDR_MAP
57 #include <asm/sections.h>
59 #include <asm/init_helpers.h>
62 #include <linux/compiler.h>
63 #include <linux/err.h>
65 #include <asm/arch/mmu.h>
68 DECLARE_GLOBAL_DATA_PTR;
70 #if defined(CONFIG_SPARC)
71 extern int prom_init(void);
74 ulong monitor_flash_len;
76 __weak int board_flash_wp_on(void)
79 * Most flashes can't be detected when write protection is enabled,
80 * so provide a way to let U-Boot gracefully ignore write protected
86 __weak void cpu_secondary_init_r(void)
90 static int initr_secondary_cpu(void)
93 * after non-volatile devices & environment is setup and cpu code have
94 * another round to deal with any initialization that might require
95 * full access to the environment or loading of some image (firmware)
96 * from a non-volatile device
98 /* TODO: maybe define this for all archs? */
99 cpu_secondary_init_r();
104 static int initr_trace(void)
107 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
113 static int initr_reloc(void)
115 /* tell others: relocation done */
116 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
123 * Some of these functions are needed purely because the functions they
124 * call return void. If we change them to return 0, these stubs can go away.
126 static int initr_caches(void)
134 __weak int fixup_cpu(void)
139 static int initr_reloc_global_data(void)
142 monitor_flash_len = _end - __image_copy_start;
143 #elif defined(CONFIG_NDS32)
144 monitor_flash_len = (ulong)&_end - (ulong)&_start;
145 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
146 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
148 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
150 * The gd->cpu pointer is set to an address in flash before relocation.
151 * We need to update it to point to the same CPU entry in RAM.
152 * TODO: why not just add gd->reloc_ofs?
154 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
157 * If we didn't know the cpu mask & # cores, we can save them of
158 * now rather than 'computing' them constantly
162 #ifdef CONFIG_SYS_EXTRA_ENV_RELOC
164 * Some systems need to relocate the env_addr pointer early because the
165 * location it points to will get invalidated before env_relocate is
166 * called. One example is on systems that might use a L2 or L3 cache
167 * in SRAM mode and initialize that cache from SRAM mode back to being
168 * a cache in cpu_init_r.
170 gd->env_addr += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
172 #ifdef CONFIG_OF_EMBED
174 * The fdt_blob needs to be moved to new relocation address
175 * incase of FDT blob is embedded with in image
177 gd->fdt_blob += gd->reloc_off;
183 static int initr_serial(void)
189 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
190 static int initr_trap(void)
193 * Setup trap handlers
195 #if defined(CONFIG_PPC)
196 trap_init(gd->relocaddr);
198 trap_init(CONFIG_SYS_SDRAM_BASE);
204 #ifdef CONFIG_ADDR_MAP
205 static int initr_addr_map(void)
213 #ifdef CONFIG_LOGBUFFER
214 unsigned long logbuffer_base(void)
216 return gd->ram_top - LOGBUFF_LEN;
219 static int initr_logbuffer(void)
227 static int initr_post_backlog(void)
229 post_output_backlog();
234 #ifdef CONFIG_SYS_DELAYED_ICACHE
235 static int initr_icache_enable(void)
241 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
242 static int initr_unlock_ram_in_cache(void)
244 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
250 static int initr_pci(void)
252 #ifndef CONFIG_DM_PCI
260 #ifdef CONFIG_WINBOND_83C553
261 static int initr_w83c553f(void)
264 * Initialise the ISA bridge
266 initialise_w83c553f();
271 static int initr_barrier(void)
274 /* TODO: Can we not use dmb() macros for this? */
280 static int initr_malloc(void)
284 #ifdef CONFIG_SYS_MALLOC_F_LEN
285 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
286 gd->malloc_ptr / 1024);
288 /* The malloc area is immediately below the monitor copy in DRAM */
289 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
290 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
295 static int initr_console_record(void)
297 #if defined(CONFIG_CONSOLE_RECORD)
298 return console_record_init();
304 #ifdef CONFIG_SYS_NONCACHED_MEMORY
305 static int initr_noncached(void)
313 static int initr_dm(void)
315 /* Save the pre-reloc driver model and start a new one */
316 gd->dm_root_f = gd->dm_root;
321 return dm_init_and_scan(false);
325 static int initr_bootstage(void)
327 /* We cannot do this before initr_dm() */
328 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
333 __weak int power_init_board(void)
338 static int initr_announce(void)
340 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
344 #ifdef CONFIG_NEEDS_MANUAL_RELOC
345 static int initr_manual_reloc_cmdtable(void)
347 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
348 ll_entry_count(cmd_tbl_t, cmd));
353 #if !defined(CONFIG_SYS_NO_FLASH)
354 static int initr_flash(void)
356 ulong flash_size = 0;
361 if (board_flash_wp_on())
362 printf("Uninitialized - Write Protect On\n");
364 flash_size = flash_init();
366 print_size(flash_size, "");
367 #ifdef CONFIG_SYS_FLASH_CHECKSUM
369 * Compute and print flash CRC if flashchecksum is set to 'y'
371 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
373 if (getenv_yesno("flashchecksum") == 1) {
374 printf(" CRC: %08X", crc32(0,
375 (const unsigned char *) CONFIG_SYS_FLASH_BASE,
378 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
381 /* update start of FLASH memory */
382 #ifdef CONFIG_SYS_FLASH_BASE
383 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
385 /* size of FLASH memory (final value) */
386 bd->bi_flashsize = flash_size;
388 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
389 /* Make a update of the Memctrl. */
390 update_flash_size(flash_size);
394 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
395 /* flash mapped at end of memory map */
396 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
397 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
398 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
404 #if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI)
405 static int initr_spi(void)
407 /* PPC does this here */
409 #if !defined(CONFIG_ENV_IS_IN_EEPROM)
418 #ifdef CONFIG_CMD_NAND
419 /* go init the NAND */
420 static int initr_nand(void)
428 #if defined(CONFIG_CMD_ONENAND)
429 /* go init the NAND */
430 static int initr_onenand(void)
438 #ifdef CONFIG_GENERIC_MMC
439 static int initr_mmc(void)
442 mmc_initialize(gd->bd);
447 #ifdef CONFIG_HAS_DATAFLASH
448 static int initr_dataflash(void)
450 AT91F_DataflashInit();
451 dataflash_print_info();
457 * Tell if it's OK to load the environment early in boot.
459 * If CONFIG_OF_CONFIG is defined, we'll check with the FDT to see
460 * if this is OK (defaulting to saying it's OK).
462 * NOTE: Loading the environment early can be a bad idea if security is
463 * important, since no verification is done on the environment.
465 * @return 0 if environment should not be loaded, !=0 if it is ok to load
467 static int should_load_env(void)
469 #ifdef CONFIG_OF_CONTROL
470 return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1);
471 #elif defined CONFIG_DELAY_ENVIRONMENT
478 static int initr_env(void)
480 /* initialize environment */
481 if (should_load_env())
484 set_default_env(NULL);
485 #ifdef CONFIG_OF_CONTROL
486 setenv_addr("fdtcontroladdr", gd->fdt_blob);
489 /* Initialize from environment */
490 load_addr = getenv_ulong("loadaddr", 16, load_addr);
491 #if defined(CONFIG_SYS_EXTBDINFO)
492 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
493 #if defined(CONFIG_I2CFAST)
495 * set bi_iic_fast for linux taking environment variable
496 * "i2cfast" into account
499 char *s = getenv("i2cfast");
501 if (s && ((*s == 'y') || (*s == 'Y'))) {
502 gd->bd->bi_iic_fast[0] = 1;
503 gd->bd->bi_iic_fast[1] = 1;
506 #endif /* CONFIG_I2CFAST */
507 #endif /* CONFIG_405GP, CONFIG_405EP */
508 #endif /* CONFIG_SYS_EXTBDINFO */
512 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
513 static int initr_malloc_bootparams(void)
515 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
516 if (!gd->bd->bi_boot_params) {
517 puts("WARNING: Cannot allocate space for boot parameters\n");
524 static int initr_jumptable(void)
530 #if defined(CONFIG_API)
531 static int initr_api(void)
539 /* enable exceptions */
540 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
541 static int initr_enable_interrupts(void)
548 #ifdef CONFIG_CMD_NET
549 static int initr_ethaddr(void)
553 /* kept around for legacy kernels only ... ignore the next section */
554 eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
555 #ifdef CONFIG_HAS_ETH1
556 eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
558 #ifdef CONFIG_HAS_ETH2
559 eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
561 #ifdef CONFIG_HAS_ETH3
562 eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
564 #ifdef CONFIG_HAS_ETH4
565 eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
567 #ifdef CONFIG_HAS_ETH5
568 eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
572 #endif /* CONFIG_CMD_NET */
574 #ifdef CONFIG_CMD_KGDB
575 static int initr_kgdb(void)
583 #if defined(CONFIG_STATUS_LED)
584 static int initr_status_led(void)
586 #if defined(STATUS_LED_BOOT)
587 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
595 #if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
596 extern int do_ambapp_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
598 static int initr_ambapp_print(void)
601 do_ambapp_print(NULL, 0, 0, NULL);
607 #if defined(CONFIG_CMD_SCSI)
608 static int initr_scsi(void)
617 #if defined(CONFIG_CMD_DOC)
618 static int initr_doc(void)
626 #ifdef CONFIG_BITBANGMII
627 static int initr_bbmii(void)
634 #ifdef CONFIG_CMD_NET
635 static int initr_net(void)
639 #if defined(CONFIG_RESET_PHY_R)
640 debug("Reset Ethernet PHY\n");
648 static int initr_post(void)
650 post_run(NULL, POST_RAM | post_bootmode_get(0));
655 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
656 static int initr_pcmcia(void)
664 #if defined(CONFIG_CMD_IDE)
665 static int initr_ide(void)
667 #ifdef CONFIG_IDE_8xx_PCCARD
672 #if defined(CONFIG_START_IDE)
673 if (board_start_ide())
682 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
684 * Export available size of memory for Linux, taking into account the
685 * protected RAM at top of memory
693 pram = getenv_ulong("pram", 10, CONFIG_PRAM);
695 # if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
696 /* Also take the logbuffer into account (pram is in kB) */
697 pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
699 sprintf(memsz, "%ldk", (long int) ((gd->ram_size / 1024) - pram));
700 setenv("mem", memsz);
706 #ifdef CONFIG_CMD_BEDBUG
707 static int initr_bedbug(void)
716 static int initr_kbd(void)
724 static int run_main_loop(void)
726 #ifdef CONFIG_SANDBOX
727 sandbox_main_loop_init();
729 /* main_loop() can return to retry autoboot, if so just run it again */
736 * Over time we hope to remove these functions with code fragments and
737 * stub funtcions, and instead call the relevant function directly.
739 * We also hope to remove most of the driver-related init and do it if/when
740 * the driver is later used.
742 * TODO: perhaps reset the watchdog in the initcall function after each call?
744 init_fnc_t init_sequence_r[] = {
747 /* TODO: could x86/PPC have this also perhaps? */
750 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
751 * A temporary mapping of IFC high region is since removed,
752 * so environmental variables in NOR flash is not availble
753 * until board_init() is called below to remap IFC to high
757 initr_reloc_global_data,
758 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
759 initr_unlock_ram_in_cache,
763 initr_console_record,
764 #ifdef CONFIG_SYS_NONCACHED_MEMORY
772 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32)
773 board_init, /* Setup chipselects */
776 * TODO: printing of the clock inforamtion of the board is now
777 * implemented as part of bdinfo command. Currently only support for
778 * davinci SOC's is added. Remove this check once all the board
782 set_cpu_clk_info, /* Setup clock information */
787 INIT_FUNC_WATCHDOG_RESET
788 #ifdef CONFIG_NEEDS_MANUAL_RELOC
789 initr_manual_reloc_cmdtable,
791 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
794 #ifdef CONFIG_ADDR_MAP
797 #if defined(CONFIG_BOARD_EARLY_INIT_R)
800 INIT_FUNC_WATCHDOG_RESET
801 #ifdef CONFIG_LOGBUFFER
807 INIT_FUNC_WATCHDOG_RESET
808 #ifdef CONFIG_SYS_DELAYED_ICACHE
811 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
813 * Do early PCI configuration _before_ the flash gets initialised,
814 * because PCU ressources are crucial for flash access on some boards.
818 #ifdef CONFIG_WINBOND_83C553
821 #ifdef CONFIG_ARCH_EARLY_INIT_R
825 #ifndef CONFIG_SYS_NO_FLASH
828 INIT_FUNC_WATCHDOG_RESET
829 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86) || \
830 defined(CONFIG_SPARC)
831 /* initialize higher level parts of CPU like time base and timers */
837 #ifdef CONFIG_CMD_NAND
840 #ifdef CONFIG_CMD_ONENAND
843 #ifdef CONFIG_GENERIC_MMC
846 #ifdef CONFIG_HAS_DATAFLASH
850 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
851 initr_malloc_bootparams,
853 INIT_FUNC_WATCHDOG_RESET
855 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
856 mac_read_from_eeprom,
858 INIT_FUNC_WATCHDOG_RESET
859 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
861 * Do pci configuration
870 console_init_r, /* fully init console as a device */
871 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
874 #ifdef CONFIG_ARCH_MISC_INIT
875 arch_misc_init, /* miscellaneous arch-dependent init */
877 #ifdef CONFIG_MISC_INIT_R
878 misc_init_r, /* miscellaneous platform-dependent init */
880 INIT_FUNC_WATCHDOG_RESET
881 #ifdef CONFIG_CMD_KGDB
885 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
886 initr_enable_interrupts,
888 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) || defined(CONFIG_M68K)
889 timer_init, /* initialize timer */
891 #if defined(CONFIG_STATUS_LED)
894 /* PPC has a udelay(20) here dating from 2002. Why? */
895 #ifdef CONFIG_CMD_NET
898 #ifdef CONFIG_BOARD_LATE_INIT
901 #if defined(CONFIG_CMD_AMBAPP)
903 #if defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
907 #ifdef CONFIG_CMD_SCSI
908 INIT_FUNC_WATCHDOG_RESET
911 #ifdef CONFIG_CMD_DOC
912 INIT_FUNC_WATCHDOG_RESET
915 #ifdef CONFIG_BITBANGMII
918 #ifdef CONFIG_CMD_NET
919 INIT_FUNC_WATCHDOG_RESET
925 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
928 #if defined(CONFIG_CMD_IDE)
931 #ifdef CONFIG_LAST_STAGE_INIT
932 INIT_FUNC_WATCHDOG_RESET
934 * Some parts can be only initialized if all others (like
935 * Interrupts) are up and running (i.e. the PC-style ISA
940 #ifdef CONFIG_CMD_BEDBUG
941 INIT_FUNC_WATCHDOG_RESET
944 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
950 #if defined(CONFIG_SPARC)
956 void board_init_r(gd_t *new_gd, ulong dest_addr)
958 #ifdef CONFIG_NEEDS_MANUAL_RELOC
963 mmu_init_r(dest_addr);
966 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
970 #ifdef CONFIG_NEEDS_MANUAL_RELOC
971 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
972 init_sequence_r[i] += gd->reloc_off;
975 if (initcall_run_list(init_sequence_r))
978 /* NOTREACHED - run_main_loop() does not return */