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_ADDR_MAP
52 #include <asm/sections.h>
54 #include <asm/init_helpers.h>
57 #include <linux/compiler.h>
58 #include <linux/err.h>
60 #include <asm/arch/mmu.h>
63 DECLARE_GLOBAL_DATA_PTR;
65 ulong monitor_flash_len;
67 __weak int board_flash_wp_on(void)
70 * Most flashes can't be detected when write protection is enabled,
71 * so provide a way to let U-Boot gracefully ignore write protected
77 __weak void cpu_secondary_init_r(void)
81 static int initr_secondary_cpu(void)
84 * after non-volatile devices & environment is setup and cpu code have
85 * another round to deal with any initialization that might require
86 * full access to the environment or loading of some image (firmware)
87 * from a non-volatile device
89 /* TODO: maybe define this for all archs? */
90 cpu_secondary_init_r();
95 static int initr_trace(void)
98 trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
104 static int initr_reloc(void)
106 /* tell others: relocation done */
107 gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
108 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
115 * Some of these functions are needed purely because the functions they
116 * call return void. If we change them to return 0, these stubs can go away.
118 static int initr_caches(void)
126 __weak int fixup_cpu(void)
131 static int initr_reloc_global_data(void)
134 monitor_flash_len = _end - __image_copy_start;
135 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
136 monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
138 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
140 * The gd->cpu pointer is set to an address in flash before relocation.
141 * We need to update it to point to the same CPU entry in RAM.
142 * TODO: why not just add gd->reloc_ofs?
144 gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
147 * If we didn't know the cpu mask & # cores, we can save them of
148 * now rather than 'computing' them constantly
152 #ifdef CONFIG_SYS_EXTRA_ENV_RELOC
154 * Some systems need to relocate the env_addr pointer early because the
155 * location it points to will get invalidated before env_relocate is
156 * called. One example is on systems that might use a L2 or L3 cache
157 * in SRAM mode and initialize that cache from SRAM mode back to being
158 * a cache in cpu_init_r.
160 gd->env_addr += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
165 static int initr_serial(void)
171 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
172 static int initr_trap(void)
175 * Setup trap handlers
177 #if defined(CONFIG_PPC)
178 trap_init(gd->relocaddr);
180 trap_init(CONFIG_SYS_SDRAM_BASE);
186 #ifdef CONFIG_ADDR_MAP
187 static int initr_addr_map(void)
195 #ifdef CONFIG_LOGBUFFER
196 unsigned long logbuffer_base(void)
198 return gd->ram_top - LOGBUFF_LEN;
201 static int initr_logbuffer(void)
209 static int initr_post_backlog(void)
211 post_output_backlog();
216 #ifdef CONFIG_SYS_DELAYED_ICACHE
217 static int initr_icache_enable(void)
223 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
224 static int initr_unlock_ram_in_cache(void)
226 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
232 static int initr_pci(void)
234 #ifndef CONFIG_DM_PCI
242 #ifdef CONFIG_WINBOND_83C553
243 static int initr_w83c553f(void)
246 * Initialise the ISA bridge
248 initialise_w83c553f();
253 static int initr_barrier(void)
256 /* TODO: Can we not use dmb() macros for this? */
262 static int initr_malloc(void)
266 #ifdef CONFIG_SYS_MALLOC_F_LEN
267 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
268 gd->malloc_ptr / 1024);
270 /* The malloc area is immediately below the monitor copy in DRAM */
271 malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
272 mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
278 static int initr_dm(void)
280 /* Save the pre-reloc driver model and start a new one */
281 gd->dm_root_f = gd->dm_root;
283 return dm_init_and_scan(false);
287 __weak int power_init_board(void)
292 static int initr_announce(void)
294 debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
298 #ifdef CONFIG_NEEDS_MANUAL_RELOC
299 static int initr_manual_reloc_cmdtable(void)
301 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
302 ll_entry_count(cmd_tbl_t, cmd));
307 #if !defined(CONFIG_SYS_NO_FLASH)
308 static int initr_flash(void)
310 ulong flash_size = 0;
315 if (board_flash_wp_on())
316 printf("Uninitialized - Write Protect On\n");
318 flash_size = flash_init();
320 print_size(flash_size, "");
321 #ifdef CONFIG_SYS_FLASH_CHECKSUM
323 * Compute and print flash CRC if flashchecksum is set to 'y'
325 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
327 if (getenv_yesno("flashchecksum") == 1) {
328 printf(" CRC: %08X", crc32(0,
329 (const unsigned char *) CONFIG_SYS_FLASH_BASE,
332 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
335 /* update start of FLASH memory */
336 #ifdef CONFIG_SYS_FLASH_BASE
337 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
339 /* size of FLASH memory (final value) */
340 bd->bi_flashsize = flash_size;
342 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
343 /* Make a update of the Memctrl. */
344 update_flash_size(flash_size);
348 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
349 /* flash mapped at end of memory map */
350 bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
351 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
352 bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
358 #if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI)
359 static int initr_spi(void)
361 /* PPC does this here */
363 #if !defined(CONFIG_ENV_IS_IN_EEPROM)
372 #ifdef CONFIG_CMD_NAND
373 /* go init the NAND */
374 static int initr_nand(void)
382 #if defined(CONFIG_CMD_ONENAND)
383 /* go init the NAND */
384 static int initr_onenand(void)
392 #ifdef CONFIG_GENERIC_MMC
393 static int initr_mmc(void)
396 mmc_initialize(gd->bd);
401 #ifdef CONFIG_HAS_DATAFLASH
402 static int initr_dataflash(void)
404 AT91F_DataflashInit();
405 dataflash_print_info();
411 * Tell if it's OK to load the environment early in boot.
413 * If CONFIG_OF_CONFIG is defined, we'll check with the FDT to see
414 * if this is OK (defaulting to saying it's OK).
416 * NOTE: Loading the environment early can be a bad idea if security is
417 * important, since no verification is done on the environment.
419 * @return 0 if environment should not be loaded, !=0 if it is ok to load
421 static int should_load_env(void)
423 #ifdef CONFIG_OF_CONTROL
424 return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1);
425 #elif defined CONFIG_DELAY_ENVIRONMENT
432 static int initr_env(void)
434 /* initialize environment */
435 if (should_load_env())
438 set_default_env(NULL);
440 /* Initialize from environment */
441 load_addr = getenv_ulong("loadaddr", 16, load_addr);
442 #if defined(CONFIG_SYS_EXTBDINFO)
443 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
444 #if defined(CONFIG_I2CFAST)
446 * set bi_iic_fast for linux taking environment variable
447 * "i2cfast" into account
450 char *s = getenv("i2cfast");
452 if (s && ((*s == 'y') || (*s == 'Y'))) {
453 gd->bd->bi_iic_fast[0] = 1;
454 gd->bd->bi_iic_fast[1] = 1;
457 #endif /* CONFIG_I2CFAST */
458 #endif /* CONFIG_405GP, CONFIG_405EP */
459 #endif /* CONFIG_SYS_EXTBDINFO */
463 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
464 static int initr_malloc_bootparams(void)
466 gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
467 if (!gd->bd->bi_boot_params) {
468 puts("WARNING: Cannot allocate space for boot parameters\n");
476 /* TODO: with new initcalls, move this into the driver */
477 extern void sc3_read_eeprom(void);
479 static int initr_sc3_read_eeprom(void)
486 static int initr_jumptable(void)
492 #if defined(CONFIG_API)
493 static int initr_api(void)
501 /* enable exceptions */
502 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
503 static int initr_enable_interrupts(void)
510 #ifdef CONFIG_CMD_NET
511 static int initr_ethaddr(void)
515 /* kept around for legacy kernels only ... ignore the next section */
516 eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
517 #ifdef CONFIG_HAS_ETH1
518 eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
520 #ifdef CONFIG_HAS_ETH2
521 eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
523 #ifdef CONFIG_HAS_ETH3
524 eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
526 #ifdef CONFIG_HAS_ETH4
527 eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
529 #ifdef CONFIG_HAS_ETH5
530 eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
534 #endif /* CONFIG_CMD_NET */
536 #ifdef CONFIG_CMD_KGDB
537 static int initr_kgdb(void)
545 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
546 static int initr_status_led(void)
548 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
554 #if defined(CONFIG_CMD_SCSI)
555 static int initr_scsi(void)
564 #if defined(CONFIG_CMD_DOC)
565 static int initr_doc(void)
573 #ifdef CONFIG_BITBANGMII
574 static int initr_bbmii(void)
581 #ifdef CONFIG_CMD_NET
582 static int initr_net(void)
586 #if defined(CONFIG_RESET_PHY_R)
587 debug("Reset Ethernet PHY\n");
595 static int initr_post(void)
597 post_run(NULL, POST_RAM | post_bootmode_get(0));
602 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
603 static int initr_pcmcia(void)
611 #if defined(CONFIG_CMD_IDE)
612 static int initr_ide(void)
614 #ifdef CONFIG_IDE_8xx_PCCARD
619 #if defined(CONFIG_START_IDE)
620 if (board_start_ide())
629 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
631 * Export available size of memory for Linux, taking into account the
632 * protected RAM at top of memory
640 pram = getenv_ulong("pram", 10, CONFIG_PRAM);
642 # if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
643 /* Also take the logbuffer into account (pram is in kB) */
644 pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
646 sprintf(memsz, "%ldk", (long int) ((gd->ram_size / 1024) - pram));
647 setenv("mem", memsz);
653 #ifdef CONFIG_CMD_BEDBUG
654 static int initr_bedbug(void)
663 static int initr_kbd(void)
671 static int run_main_loop(void)
673 #ifdef CONFIG_SANDBOX
674 sandbox_main_loop_init();
676 /* main_loop() can return to retry autoboot, if so just run it again */
683 * Over time we hope to remove these functions with code fragments and
684 * stub funtcions, and instead call the relevant function directly.
686 * We also hope to remove most of the driver-related init and do it if/when
687 * the driver is later used.
689 * TODO: perhaps reset the watchdog in the initcall function after each call?
691 init_fnc_t init_sequence_r[] = {
694 /* TODO: could x86/PPC have this also perhaps? */
698 initr_reloc_global_data,
699 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
700 initr_unlock_ram_in_cache,
709 board_init, /* Setup chipselects */
712 * TODO: printing of the clock inforamtion of the board is now
713 * implemented as part of bdinfo command. Currently only support for
714 * davinci SOC's is added. Remove this check once all the board
718 set_cpu_clk_info, /* Setup clock information */
723 INIT_FUNC_WATCHDOG_RESET
724 #ifdef CONFIG_NEEDS_MANUAL_RELOC
725 initr_manual_reloc_cmdtable,
727 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
730 #ifdef CONFIG_ADDR_MAP
733 #if defined(CONFIG_BOARD_EARLY_INIT_R)
736 INIT_FUNC_WATCHDOG_RESET
737 #ifdef CONFIG_LOGBUFFER
743 INIT_FUNC_WATCHDOG_RESET
744 #ifdef CONFIG_SYS_DELAYED_ICACHE
747 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
749 * Do early PCI configuration _before_ the flash gets initialised,
750 * because PCU ressources are crucial for flash access on some boards.
754 #ifdef CONFIG_WINBOND_83C553
757 #ifdef CONFIG_ARCH_EARLY_INIT_R
761 #ifndef CONFIG_SYS_NO_FLASH
764 INIT_FUNC_WATCHDOG_RESET
765 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
766 /* initialize higher level parts of CPU like time base and timers */
772 #ifdef CONFIG_CMD_NAND
775 #ifdef CONFIG_CMD_ONENAND
778 #ifdef CONFIG_GENERIC_MMC
781 #ifdef CONFIG_HAS_DATAFLASH
785 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
786 initr_malloc_bootparams,
788 INIT_FUNC_WATCHDOG_RESET
791 initr_sc3_read_eeprom,
793 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
794 mac_read_from_eeprom,
796 INIT_FUNC_WATCHDOG_RESET
797 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
799 * Do pci configuration
808 console_init_r, /* fully init console as a device */
809 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
812 #ifdef CONFIG_ARCH_MISC_INIT
813 arch_misc_init, /* miscellaneous arch-dependent init */
815 #ifdef CONFIG_MISC_INIT_R
816 misc_init_r, /* miscellaneous platform-dependent init */
818 INIT_FUNC_WATCHDOG_RESET
819 #ifdef CONFIG_CMD_KGDB
823 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
824 initr_enable_interrupts,
826 #if defined(CONFIG_X86) || defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) \
827 || defined(CONFIG_M68K)
828 timer_init, /* initialize timer */
830 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
833 /* PPC has a udelay(20) here dating from 2002. Why? */
834 #ifdef CONFIG_CMD_NET
837 #ifdef CONFIG_BOARD_LATE_INIT
840 #ifdef CONFIG_CMD_SCSI
841 INIT_FUNC_WATCHDOG_RESET
844 #ifdef CONFIG_CMD_DOC
845 INIT_FUNC_WATCHDOG_RESET
848 #ifdef CONFIG_BITBANGMII
851 #ifdef CONFIG_CMD_NET
852 INIT_FUNC_WATCHDOG_RESET
858 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
861 #if defined(CONFIG_CMD_IDE)
864 #ifdef CONFIG_LAST_STAGE_INIT
865 INIT_FUNC_WATCHDOG_RESET
867 * Some parts can be only initialized if all others (like
868 * Interrupts) are up and running (i.e. the PC-style ISA
873 #ifdef CONFIG_CMD_BEDBUG
874 INIT_FUNC_WATCHDOG_RESET
877 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
886 void board_init_r(gd_t *new_gd, ulong dest_addr)
888 #ifdef CONFIG_NEEDS_MANUAL_RELOC
893 mmu_init_r(dest_addr);
896 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
900 #ifdef CONFIG_NEEDS_MANUAL_RELOC
901 for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
902 init_sequence_r[i] += gd->reloc_off;
905 if (initcall_run_list(init_sequence_r))
908 /* NOTREACHED - run_main_loop() does not return */