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>
18 #ifdef CONFIG_HAS_DATAFLASH
19 #include <dataflash.h>
22 #include <environment.h>
24 #if defined(CONFIG_CMD_IDE)
31 #if defined(CONFIG_CMD_KGDB)
37 #ifdef CONFIG_BITBANGMII
42 #include <onenand_uboot.h>
46 #include <stdio_dev.h>
49 #ifdef CONFIG_CMD_AMBAPP
52 #ifdef CONFIG_ADDR_MAP
55 #include <asm/sections.h>
57 #include <asm/init_helpers.h>
60 #include <linux/compiler.h>
61 #include <linux/err.h>
63 #include <asm/arch/mmu.h>
66 DECLARE_GLOBAL_DATA_PTR;
68 ulong monitor_flash_len;
70 __weak int board_flash_wp_on(void)
73 * Most flashes can't be detected when write protection is enabled,
74 * so provide a way to let U-Boot gracefully ignore write protected
80 __weak void cpu_secondary_init_r(void)
84 static int initr_secondary_cpu(void)
87 * after non-volatile devices & environment is setup and cpu code have
88 * another round to deal with any initialization that might require
89 * full access to the environment or loading of some image (firmware)
90 * from a non-volatile device
92 /* TODO: maybe define this for all archs? */
93 cpu_secondary_init_r();
98 static int initr_trace(void)
101 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
107 static int initr_reloc(void)
109 /* tell others: relocation done */
110 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
111 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
118 * Some of these functions are needed purely because the functions they
119 * call return void. If we change them to return 0, these stubs can go away.
121 static int initr_caches(void)
129 __weak int fixup_cpu(void)
134 static int initr_reloc_global_data(void)
137 monitor_flash_len = _end - __image_copy_start;
138 #elif defined(CONFIG_NDS32)
139 monitor_flash_len = (ulong)&_end - (ulong)&_start;
140 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
141 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
143 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
145 * The gd->cpu pointer is set to an address in flash before relocation.
146 * We need to update it to point to the same CPU entry in RAM.
147 * TODO: why not just add gd->reloc_ofs?
149 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
152 * If we didn't know the cpu mask & # cores, we can save them of
153 * now rather than 'computing' them constantly
157 #ifdef CONFIG_SYS_EXTRA_ENV_RELOC
159 * Some systems need to relocate the env_addr pointer early because the
160 * location it points to will get invalidated before env_relocate is
161 * called. One example is on systems that might use a L2 or L3 cache
162 * in SRAM mode and initialize that cache from SRAM mode back to being
163 * a cache in cpu_init_r.
165 gd->env_addr += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
170 static int initr_serial(void)
176 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
177 static int initr_trap(void)
180 * Setup trap handlers
182 #if defined(CONFIG_PPC)
183 trap_init(gd->relocaddr);
185 trap_init(CONFIG_SYS_SDRAM_BASE);
191 #ifdef CONFIG_ADDR_MAP
192 static int initr_addr_map(void)
200 #ifdef CONFIG_LOGBUFFER
201 unsigned long logbuffer_base(void)
203 return gd->ram_top - LOGBUFF_LEN;
206 static int initr_logbuffer(void)
214 static int initr_post_backlog(void)
216 post_output_backlog();
221 #ifdef CONFIG_SYS_DELAYED_ICACHE
222 static int initr_icache_enable(void)
228 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
229 static int initr_unlock_ram_in_cache(void)
231 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
237 static int initr_pci(void)
239 #ifndef CONFIG_DM_PCI
247 #ifdef CONFIG_WINBOND_83C553
248 static int initr_w83c553f(void)
251 * Initialise the ISA bridge
253 initialise_w83c553f();
258 static int initr_barrier(void)
261 /* TODO: Can we not use dmb() macros for this? */
267 static int initr_malloc(void)
271 #ifdef CONFIG_SYS_MALLOC_F_LEN
272 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
273 gd->malloc_ptr / 1024);
275 /* The malloc area is immediately below the monitor copy in DRAM */
276 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
277 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
282 #ifdef CONFIG_SYS_NONCACHED_MEMORY
283 static int initr_noncached(void)
291 static int initr_dm(void)
293 /* Save the pre-reloc driver model and start a new one */
294 gd->dm_root_f = gd->dm_root;
299 return dm_init_and_scan(false);
303 __weak int power_init_board(void)
308 static int initr_announce(void)
310 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
314 #ifdef CONFIG_NEEDS_MANUAL_RELOC
315 static int initr_manual_reloc_cmdtable(void)
317 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
318 ll_entry_count(cmd_tbl_t, cmd));
323 #if !defined(CONFIG_SYS_NO_FLASH)
324 static int initr_flash(void)
326 ulong flash_size = 0;
331 if (board_flash_wp_on())
332 printf("Uninitialized - Write Protect On\n");
334 flash_size = flash_init();
336 print_size(flash_size, "");
337 #ifdef CONFIG_SYS_FLASH_CHECKSUM
339 * Compute and print flash CRC if flashchecksum is set to 'y'
341 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
343 if (getenv_yesno("flashchecksum") == 1) {
344 printf(" CRC: %08X", crc32(0,
345 (const unsigned char *) CONFIG_SYS_FLASH_BASE,
348 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
351 /* update start of FLASH memory */
352 #ifdef CONFIG_SYS_FLASH_BASE
353 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
355 /* size of FLASH memory (final value) */
356 bd->bi_flashsize = flash_size;
358 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
359 /* Make a update of the Memctrl. */
360 update_flash_size(flash_size);
364 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
365 /* flash mapped at end of memory map */
366 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
367 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
368 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
374 #if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI)
375 static int initr_spi(void)
377 /* PPC does this here */
379 #if !defined(CONFIG_ENV_IS_IN_EEPROM)
388 #ifdef CONFIG_CMD_NAND
389 /* go init the NAND */
390 static int initr_nand(void)
398 #if defined(CONFIG_CMD_ONENAND)
399 /* go init the NAND */
400 static int initr_onenand(void)
408 #ifdef CONFIG_GENERIC_MMC
409 static int initr_mmc(void)
412 mmc_initialize(gd->bd);
417 #ifdef CONFIG_HAS_DATAFLASH
418 static int initr_dataflash(void)
420 AT91F_DataflashInit();
421 dataflash_print_info();
427 * Tell if it's OK to load the environment early in boot.
429 * If CONFIG_OF_CONFIG is defined, we'll check with the FDT to see
430 * if this is OK (defaulting to saying it's OK).
432 * NOTE: Loading the environment early can be a bad idea if security is
433 * important, since no verification is done on the environment.
435 * @return 0 if environment should not be loaded, !=0 if it is ok to load
437 static int should_load_env(void)
439 #ifdef CONFIG_OF_CONTROL
440 return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1);
441 #elif defined CONFIG_DELAY_ENVIRONMENT
448 static int initr_env(void)
450 /* initialize environment */
451 if (should_load_env())
454 set_default_env(NULL);
455 #ifdef CONFIG_OF_CONTROL
456 setenv_addr("fdtcontroladdr", gd->fdt_blob);
459 /* Initialize from environment */
460 load_addr = getenv_ulong("loadaddr", 16, load_addr);
461 #if defined(CONFIG_SYS_EXTBDINFO)
462 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
463 #if defined(CONFIG_I2CFAST)
465 * set bi_iic_fast for linux taking environment variable
466 * "i2cfast" into account
469 char *s = getenv("i2cfast");
471 if (s && ((*s == 'y') || (*s == 'Y'))) {
472 gd->bd->bi_iic_fast[0] = 1;
473 gd->bd->bi_iic_fast[1] = 1;
476 #endif /* CONFIG_I2CFAST */
477 #endif /* CONFIG_405GP, CONFIG_405EP */
478 #endif /* CONFIG_SYS_EXTBDINFO */
482 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
483 static int initr_malloc_bootparams(void)
485 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
486 if (!gd->bd->bi_boot_params) {
487 puts("WARNING: Cannot allocate space for boot parameters\n");
494 static int initr_jumptable(void)
500 #if defined(CONFIG_API)
501 static int initr_api(void)
509 /* enable exceptions */
510 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
511 static int initr_enable_interrupts(void)
518 #ifdef CONFIG_CMD_NET
519 static int initr_ethaddr(void)
523 /* kept around for legacy kernels only ... ignore the next section */
524 eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
525 #ifdef CONFIG_HAS_ETH1
526 eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
528 #ifdef CONFIG_HAS_ETH2
529 eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
531 #ifdef CONFIG_HAS_ETH3
532 eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
534 #ifdef CONFIG_HAS_ETH4
535 eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
537 #ifdef CONFIG_HAS_ETH5
538 eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
542 #endif /* CONFIG_CMD_NET */
544 #ifdef CONFIG_CMD_KGDB
545 static int initr_kgdb(void)
553 #if defined(CONFIG_STATUS_LED)
554 static int initr_status_led(void)
556 #if defined(STATUS_LED_BOOT)
557 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
565 #if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
566 extern int do_ambapp_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
568 static int initr_ambapp_print(void)
571 do_ambapp_print(NULL, 0, 0, NULL);
577 #if defined(CONFIG_CMD_SCSI)
578 static int initr_scsi(void)
587 #if defined(CONFIG_CMD_DOC)
588 static int initr_doc(void)
596 #ifdef CONFIG_BITBANGMII
597 static int initr_bbmii(void)
604 #ifdef CONFIG_CMD_NET
605 static int initr_net(void)
609 #if defined(CONFIG_RESET_PHY_R)
610 debug("Reset Ethernet PHY\n");
618 static int initr_post(void)
620 post_run(NULL, POST_RAM | post_bootmode_get(0));
625 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
626 static int initr_pcmcia(void)
634 #if defined(CONFIG_CMD_IDE)
635 static int initr_ide(void)
637 #ifdef CONFIG_IDE_8xx_PCCARD
642 #if defined(CONFIG_START_IDE)
643 if (board_start_ide())
652 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
654 * Export available size of memory for Linux, taking into account the
655 * protected RAM at top of memory
663 pram = getenv_ulong("pram", 10, CONFIG_PRAM);
665 # if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
666 /* Also take the logbuffer into account (pram is in kB) */
667 pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
669 sprintf(memsz, "%ldk", (long int) ((gd->ram_size / 1024) - pram));
670 setenv("mem", memsz);
676 #ifdef CONFIG_CMD_BEDBUG
677 static int initr_bedbug(void)
686 static int initr_kbd(void)
694 static int run_main_loop(void)
696 #ifdef CONFIG_SANDBOX
697 sandbox_main_loop_init();
699 /* main_loop() can return to retry autoboot, if so just run it again */
706 * Over time we hope to remove these functions with code fragments and
707 * stub funtcions, and instead call the relevant function directly.
709 * We also hope to remove most of the driver-related init and do it if/when
710 * the driver is later used.
712 * TODO: perhaps reset the watchdog in the initcall function after each call?
714 init_fnc_t init_sequence_r[] = {
717 /* TODO: could x86/PPC have this also perhaps? */
720 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
721 * A temporary mapping of IFC high region is since removed,
722 * so environmental variables in NOR flash is not availble
723 * until board_init() is called below to remap IFC to high
727 initr_reloc_global_data,
728 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
729 initr_unlock_ram_in_cache,
733 #ifdef CONFIG_SYS_NONCACHED_MEMORY
740 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32)
741 board_init, /* Setup chipselects */
744 * TODO: printing of the clock inforamtion of the board is now
745 * implemented as part of bdinfo command. Currently only support for
746 * davinci SOC's is added. Remove this check once all the board
750 set_cpu_clk_info, /* Setup clock information */
755 INIT_FUNC_WATCHDOG_RESET
756 #ifdef CONFIG_NEEDS_MANUAL_RELOC
757 initr_manual_reloc_cmdtable,
759 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
762 #ifdef CONFIG_ADDR_MAP
765 #if defined(CONFIG_BOARD_EARLY_INIT_R)
768 INIT_FUNC_WATCHDOG_RESET
769 #ifdef CONFIG_LOGBUFFER
775 INIT_FUNC_WATCHDOG_RESET
776 #ifdef CONFIG_SYS_DELAYED_ICACHE
779 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
781 * Do early PCI configuration _before_ the flash gets initialised,
782 * because PCU ressources are crucial for flash access on some boards.
786 #ifdef CONFIG_WINBOND_83C553
789 #ifdef CONFIG_ARCH_EARLY_INIT_R
793 #ifndef CONFIG_SYS_NO_FLASH
796 INIT_FUNC_WATCHDOG_RESET
797 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
798 /* initialize higher level parts of CPU like time base and timers */
804 #ifdef CONFIG_CMD_NAND
807 #ifdef CONFIG_CMD_ONENAND
810 #ifdef CONFIG_GENERIC_MMC
813 #ifdef CONFIG_HAS_DATAFLASH
817 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
818 initr_malloc_bootparams,
820 INIT_FUNC_WATCHDOG_RESET
822 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
823 mac_read_from_eeprom,
825 INIT_FUNC_WATCHDOG_RESET
826 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
828 * Do pci configuration
837 console_init_r, /* fully init console as a device */
838 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
841 #ifdef CONFIG_ARCH_MISC_INIT
842 arch_misc_init, /* miscellaneous arch-dependent init */
844 #ifdef CONFIG_MISC_INIT_R
845 misc_init_r, /* miscellaneous platform-dependent init */
847 INIT_FUNC_WATCHDOG_RESET
848 #ifdef CONFIG_CMD_KGDB
852 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
853 initr_enable_interrupts,
855 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) || defined(CONFIG_M68K)
856 timer_init, /* initialize timer */
858 #if defined(CONFIG_STATUS_LED)
861 /* PPC has a udelay(20) here dating from 2002. Why? */
862 #ifdef CONFIG_CMD_NET
865 #ifdef CONFIG_BOARD_LATE_INIT
868 #if defined(CONFIG_CMD_AMBAPP)
870 #if defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
874 #ifdef CONFIG_CMD_SCSI
875 INIT_FUNC_WATCHDOG_RESET
878 #ifdef CONFIG_CMD_DOC
879 INIT_FUNC_WATCHDOG_RESET
882 #ifdef CONFIG_BITBANGMII
885 #ifdef CONFIG_CMD_NET
886 INIT_FUNC_WATCHDOG_RESET
892 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
895 #if defined(CONFIG_CMD_IDE)
898 #ifdef CONFIG_LAST_STAGE_INIT
899 INIT_FUNC_WATCHDOG_RESET
901 * Some parts can be only initialized if all others (like
902 * Interrupts) are up and running (i.e. the PC-style ISA
907 #ifdef CONFIG_CMD_BEDBUG
908 INIT_FUNC_WATCHDOG_RESET
911 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
920 void board_init_r(gd_t *new_gd, ulong dest_addr)
922 #ifdef CONFIG_NEEDS_MANUAL_RELOC
927 mmu_init_r(dest_addr);
930 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
934 #ifdef CONFIG_NEEDS_MANUAL_RELOC
935 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
936 init_sequence_r[i] += gd->reloc_off;
939 if (initcall_run_list(init_sequence_r))
942 /* NOTREACHED - run_main_loop() does not return */