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>
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
;
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 static int initr_console_record(void)
284 #if defined(CONFIG_CONSOLE_RECORD)
285 return console_record_init();
291 #ifdef CONFIG_SYS_NONCACHED_MEMORY
292 static int initr_noncached(void)
300 static int initr_dm(void)
302 /* Save the pre-reloc driver model and start a new one */
303 gd
->dm_root_f
= gd
->dm_root
;
308 return dm_init_and_scan(false);
312 static int initr_bootstage(void)
314 /* We cannot do this before initr_dm() */
315 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R
, "board_init_r");
320 __weak
int power_init_board(void)
325 static int initr_announce(void)
327 debug("Now running in RAM - U-Boot at: %08lx\n", gd
->relocaddr
);
331 #ifdef CONFIG_NEEDS_MANUAL_RELOC
332 static int initr_manual_reloc_cmdtable(void)
334 fixup_cmdtable(ll_entry_start(cmd_tbl_t
, cmd
),
335 ll_entry_count(cmd_tbl_t
, cmd
));
340 #if !defined(CONFIG_SYS_NO_FLASH)
341 static int initr_flash(void)
343 ulong flash_size
= 0;
348 if (board_flash_wp_on())
349 printf("Uninitialized - Write Protect On\n");
351 flash_size
= flash_init();
353 print_size(flash_size
, "");
354 #ifdef CONFIG_SYS_FLASH_CHECKSUM
356 * Compute and print flash CRC if flashchecksum is set to 'y'
358 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
360 if (getenv_yesno("flashchecksum") == 1) {
361 printf(" CRC: %08X", crc32(0,
362 (const unsigned char *) CONFIG_SYS_FLASH_BASE
,
365 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
368 /* update start of FLASH memory */
369 #ifdef CONFIG_SYS_FLASH_BASE
370 bd
->bi_flashstart
= CONFIG_SYS_FLASH_BASE
;
372 /* size of FLASH memory (final value) */
373 bd
->bi_flashsize
= flash_size
;
375 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
376 /* Make a update of the Memctrl. */
377 update_flash_size(flash_size
);
381 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
382 /* flash mapped at end of memory map */
383 bd
->bi_flashoffset
= CONFIG_SYS_TEXT_BASE
+ flash_size
;
384 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
385 bd
->bi_flashoffset
= monitor_flash_len
; /* reserved area for monitor */
391 #if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI)
392 static int initr_spi(void)
394 /* PPC does this here */
396 #if !defined(CONFIG_ENV_IS_IN_EEPROM)
405 #ifdef CONFIG_CMD_NAND
406 /* go init the NAND */
407 static int initr_nand(void)
415 #if defined(CONFIG_CMD_ONENAND)
416 /* go init the NAND */
417 static int initr_onenand(void)
425 #ifdef CONFIG_GENERIC_MMC
426 static int initr_mmc(void)
429 mmc_initialize(gd
->bd
);
434 #ifdef CONFIG_HAS_DATAFLASH
435 static int initr_dataflash(void)
437 AT91F_DataflashInit();
438 dataflash_print_info();
444 * Tell if it's OK to load the environment early in boot.
446 * If CONFIG_OF_CONFIG is defined, we'll check with the FDT to see
447 * if this is OK (defaulting to saying it's OK).
449 * NOTE: Loading the environment early can be a bad idea if security is
450 * important, since no verification is done on the environment.
452 * @return 0 if environment should not be loaded, !=0 if it is ok to load
454 static int should_load_env(void)
456 #ifdef CONFIG_OF_CONTROL
457 return fdtdec_get_config_int(gd
->fdt_blob
, "load-environment", 1);
458 #elif defined CONFIG_DELAY_ENVIRONMENT
465 static int initr_env(void)
467 /* initialize environment */
468 if (should_load_env())
471 set_default_env(NULL
);
472 #ifdef CONFIG_OF_CONTROL
473 setenv_addr("fdtcontroladdr", gd
->fdt_blob
);
476 /* Initialize from environment */
477 load_addr
= getenv_ulong("loadaddr", 16, load_addr
);
478 #if defined(CONFIG_SYS_EXTBDINFO)
479 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
480 #if defined(CONFIG_I2CFAST)
482 * set bi_iic_fast for linux taking environment variable
483 * "i2cfast" into account
486 char *s
= getenv("i2cfast");
488 if (s
&& ((*s
== 'y') || (*s
== 'Y'))) {
489 gd
->bd
->bi_iic_fast
[0] = 1;
490 gd
->bd
->bi_iic_fast
[1] = 1;
493 #endif /* CONFIG_I2CFAST */
494 #endif /* CONFIG_405GP, CONFIG_405EP */
495 #endif /* CONFIG_SYS_EXTBDINFO */
499 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
500 static int initr_malloc_bootparams(void)
502 gd
->bd
->bi_boot_params
= (ulong
)malloc(CONFIG_SYS_BOOTPARAMS_LEN
);
503 if (!gd
->bd
->bi_boot_params
) {
504 puts("WARNING: Cannot allocate space for boot parameters\n");
511 static int initr_jumptable(void)
517 #if defined(CONFIG_API)
518 static int initr_api(void)
526 /* enable exceptions */
527 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
528 static int initr_enable_interrupts(void)
535 #ifdef CONFIG_CMD_NET
536 static int initr_ethaddr(void)
540 /* kept around for legacy kernels only ... ignore the next section */
541 eth_getenv_enetaddr("ethaddr", bd
->bi_enetaddr
);
542 #ifdef CONFIG_HAS_ETH1
543 eth_getenv_enetaddr("eth1addr", bd
->bi_enet1addr
);
545 #ifdef CONFIG_HAS_ETH2
546 eth_getenv_enetaddr("eth2addr", bd
->bi_enet2addr
);
548 #ifdef CONFIG_HAS_ETH3
549 eth_getenv_enetaddr("eth3addr", bd
->bi_enet3addr
);
551 #ifdef CONFIG_HAS_ETH4
552 eth_getenv_enetaddr("eth4addr", bd
->bi_enet4addr
);
554 #ifdef CONFIG_HAS_ETH5
555 eth_getenv_enetaddr("eth5addr", bd
->bi_enet5addr
);
559 #endif /* CONFIG_CMD_NET */
561 #ifdef CONFIG_CMD_KGDB
562 static int initr_kgdb(void)
570 #if defined(CONFIG_STATUS_LED)
571 static int initr_status_led(void)
573 #if defined(STATUS_LED_BOOT)
574 status_led_set(STATUS_LED_BOOT
, STATUS_LED_BLINKING
);
582 #if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
583 extern int do_ambapp_print(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[]);
585 static int initr_ambapp_print(void)
588 do_ambapp_print(NULL
, 0, 0, NULL
);
594 #if defined(CONFIG_CMD_SCSI)
595 static int initr_scsi(void)
604 #if defined(CONFIG_CMD_DOC)
605 static int initr_doc(void)
613 #ifdef CONFIG_BITBANGMII
614 static int initr_bbmii(void)
621 #ifdef CONFIG_CMD_NET
622 static int initr_net(void)
626 #if defined(CONFIG_RESET_PHY_R)
627 debug("Reset Ethernet PHY\n");
635 static int initr_post(void)
637 post_run(NULL
, POST_RAM
| post_bootmode_get(0));
642 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
643 static int initr_pcmcia(void)
651 #if defined(CONFIG_CMD_IDE)
652 static int initr_ide(void)
654 #ifdef CONFIG_IDE_8xx_PCCARD
659 #if defined(CONFIG_START_IDE)
660 if (board_start_ide())
669 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
671 * Export available size of memory for Linux, taking into account the
672 * protected RAM at top of memory
680 pram
= getenv_ulong("pram", 10, CONFIG_PRAM
);
682 # if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
683 /* Also take the logbuffer into account (pram is in kB) */
684 pram
+= (LOGBUFF_LEN
+ LOGBUFF_OVERHEAD
) / 1024;
686 sprintf(memsz
, "%ldk", (long int) ((gd
->ram_size
/ 1024) - pram
));
687 setenv("mem", memsz
);
693 #ifdef CONFIG_CMD_BEDBUG
694 static int initr_bedbug(void)
703 static int initr_kbd(void)
711 static int run_main_loop(void)
713 #ifdef CONFIG_SANDBOX
714 sandbox_main_loop_init();
716 /* main_loop() can return to retry autoboot, if so just run it again */
723 * Over time we hope to remove these functions with code fragments and
724 * stub funtcions, and instead call the relevant function directly.
726 * We also hope to remove most of the driver-related init and do it if/when
727 * the driver is later used.
729 * TODO: perhaps reset the watchdog in the initcall function after each call?
731 init_fnc_t init_sequence_r
[] = {
734 /* TODO: could x86/PPC have this also perhaps? */
737 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
738 * A temporary mapping of IFC high region is since removed,
739 * so environmental variables in NOR flash is not availble
740 * until board_init() is called below to remap IFC to high
744 initr_reloc_global_data
,
745 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
746 initr_unlock_ram_in_cache
,
750 initr_console_record
,
751 #ifdef CONFIG_SYS_NONCACHED_MEMORY
759 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32)
760 board_init
, /* Setup chipselects */
763 * TODO: printing of the clock inforamtion of the board is now
764 * implemented as part of bdinfo command. Currently only support for
765 * davinci SOC's is added. Remove this check once all the board
769 set_cpu_clk_info
, /* Setup clock information */
774 INIT_FUNC_WATCHDOG_RESET
775 #ifdef CONFIG_NEEDS_MANUAL_RELOC
776 initr_manual_reloc_cmdtable
,
778 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
781 #ifdef CONFIG_ADDR_MAP
784 #if defined(CONFIG_BOARD_EARLY_INIT_R)
787 INIT_FUNC_WATCHDOG_RESET
788 #ifdef CONFIG_LOGBUFFER
794 INIT_FUNC_WATCHDOG_RESET
795 #ifdef CONFIG_SYS_DELAYED_ICACHE
798 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
800 * Do early PCI configuration _before_ the flash gets initialised,
801 * because PCU ressources are crucial for flash access on some boards.
805 #ifdef CONFIG_WINBOND_83C553
808 #ifdef CONFIG_ARCH_EARLY_INIT_R
812 #ifndef CONFIG_SYS_NO_FLASH
815 INIT_FUNC_WATCHDOG_RESET
816 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86) || \
817 defined(CONFIG_SPARC)
818 /* initialize higher level parts of CPU like time base and timers */
824 #ifdef CONFIG_CMD_NAND
827 #ifdef CONFIG_CMD_ONENAND
830 #ifdef CONFIG_GENERIC_MMC
833 #ifdef CONFIG_HAS_DATAFLASH
837 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
838 initr_malloc_bootparams
,
840 INIT_FUNC_WATCHDOG_RESET
842 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
843 mac_read_from_eeprom
,
845 INIT_FUNC_WATCHDOG_RESET
846 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
848 * Do pci configuration
857 console_init_r
, /* fully init console as a device */
858 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
861 #ifdef CONFIG_ARCH_MISC_INIT
862 arch_misc_init
, /* miscellaneous arch-dependent init */
864 #ifdef CONFIG_MISC_INIT_R
865 misc_init_r
, /* miscellaneous platform-dependent init */
867 INIT_FUNC_WATCHDOG_RESET
868 #ifdef CONFIG_CMD_KGDB
872 #if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
873 initr_enable_interrupts
,
875 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) || defined(CONFIG_M68K)
876 timer_init
, /* initialize timer */
878 #if defined(CONFIG_STATUS_LED)
881 /* PPC has a udelay(20) here dating from 2002. Why? */
882 #ifdef CONFIG_CMD_NET
885 #ifdef CONFIG_BOARD_LATE_INIT
888 #if defined(CONFIG_CMD_AMBAPP)
890 #if defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
894 #ifdef CONFIG_CMD_SCSI
895 INIT_FUNC_WATCHDOG_RESET
898 #ifdef CONFIG_CMD_DOC
899 INIT_FUNC_WATCHDOG_RESET
902 #ifdef CONFIG_BITBANGMII
905 #ifdef CONFIG_CMD_NET
906 INIT_FUNC_WATCHDOG_RESET
912 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
915 #if defined(CONFIG_CMD_IDE)
918 #ifdef CONFIG_LAST_STAGE_INIT
919 INIT_FUNC_WATCHDOG_RESET
921 * Some parts can be only initialized if all others (like
922 * Interrupts) are up and running (i.e. the PC-style ISA
927 #ifdef CONFIG_CMD_BEDBUG
928 INIT_FUNC_WATCHDOG_RESET
931 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
940 void board_init_r(gd_t
*new_gd
, ulong dest_addr
)
942 #ifdef CONFIG_NEEDS_MANUAL_RELOC
947 mmu_init_r(dest_addr
);
950 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
954 #ifdef CONFIG_NEEDS_MANUAL_RELOC
955 for (i
= 0; i
< ARRAY_SIZE(init_sequence_r
); i
++)
956 init_sequence_r
[i
] += gd
->reloc_off
;
959 if (initcall_run_list(init_sequence_r
))
962 /* NOTREACHED - run_main_loop() does not return */