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+
15 /* TODO: can we just include all these headers whether needed or not? */
16 #if defined(CONFIG_CMD_BEDBUG)
17 #include <bedbug/type.h>
22 #include <environment.h>
26 #include <init_helpers.h>
30 #if defined(CONFIG_CMD_KGDB)
35 #ifdef CONFIG_BITBANGMII
41 #include <onenand_uboot.h>
45 #include <stdio_dev.h>
49 #ifdef CONFIG_ADDR_MAP
52 #include <asm/sections.h>
54 #include <linux/compiler.h>
55 #include <linux/err.h>
56 #include <efi_loader.h>
58 DECLARE_GLOBAL_DATA_PTR
;
60 ulong monitor_flash_len
;
62 __weak
int board_flash_wp_on(void)
65 * Most flashes can't be detected when write protection is enabled,
66 * so provide a way to let U-Boot gracefully ignore write protected
72 __weak
void cpu_secondary_init_r(void)
76 static int initr_secondary_cpu(void)
79 * after non-volatile devices & environment is setup and cpu code have
80 * another round to deal with any initialization that might require
81 * full access to the environment or loading of some image (firmware)
82 * from a non-volatile device
84 /* TODO: maybe define this for all archs? */
85 cpu_secondary_init_r();
90 static int initr_trace(void)
93 trace_init(gd
->trace_buff
, CONFIG_TRACE_BUFFER_SIZE
);
99 static int initr_reloc(void)
101 /* tell others: relocation done */
102 gd
->flags
|= GD_FLG_RELOC
| GD_FLG_FULL_MALLOC_INIT
;
109 * Some of these functions are needed purely because the functions they
110 * call return void. If we change them to return 0, these stubs can go away.
112 static int initr_caches(void)
120 __weak
int fixup_cpu(void)
125 static int initr_reloc_global_data(void)
128 monitor_flash_len
= _end
- __image_copy_start
;
129 #elif defined(CONFIG_NDS32) || defined(CONFIG_RISCV)
130 monitor_flash_len
= (ulong
)&_end
- (ulong
)&_start
;
131 #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
132 monitor_flash_len
= (ulong
)&__init_end
- gd
->relocaddr
;
134 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
136 * The gd->cpu pointer is set to an address in flash before relocation.
137 * We need to update it to point to the same CPU entry in RAM.
138 * TODO: why not just add gd->reloc_ofs?
140 gd
->arch
.cpu
+= gd
->relocaddr
- CONFIG_SYS_MONITOR_BASE
;
143 * If we didn't know the cpu mask & # cores, we can save them of
144 * now rather than 'computing' them constantly
148 #ifdef CONFIG_SYS_EXTRA_ENV_RELOC
150 * Some systems need to relocate the env_addr pointer early because the
151 * location it points to will get invalidated before env_relocate is
152 * called. One example is on systems that might use a L2 or L3 cache
153 * in SRAM mode and initialize that cache from SRAM mode back to being
154 * a cache in cpu_init_r.
156 gd
->env_addr
+= gd
->relocaddr
- CONFIG_SYS_MONITOR_BASE
;
158 #ifdef CONFIG_OF_EMBED
160 * The fdt_blob needs to be moved to new relocation address
161 * incase of FDT blob is embedded with in image
163 gd
->fdt_blob
+= gd
->reloc_off
;
165 #ifdef CONFIG_EFI_LOADER
166 efi_runtime_relocate(gd
->relocaddr
, NULL
);
172 static int initr_serial(void)
178 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
179 static int initr_trap(void)
182 * Setup trap handlers
184 #if defined(CONFIG_PPC)
185 trap_init(gd
->relocaddr
);
187 trap_init(CONFIG_SYS_SDRAM_BASE
);
193 #ifdef CONFIG_ADDR_MAP
194 static int initr_addr_map(void)
203 static int initr_post_backlog(void)
205 post_output_backlog();
210 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
211 static int initr_unlock_ram_in_cache(void)
213 unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
219 static int initr_pci(void)
221 #ifndef CONFIG_DM_PCI
229 static int initr_barrier(void)
232 /* TODO: Can we not use dmb() macros for this? */
238 static int initr_malloc(void)
242 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
243 debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd
->malloc_ptr
,
244 gd
->malloc_ptr
/ 1024);
246 /* The malloc area is immediately below the monitor copy in DRAM */
247 malloc_start
= gd
->relocaddr
- TOTAL_MALLOC_LEN
;
248 mem_malloc_init((ulong
)map_sysmem(malloc_start
, TOTAL_MALLOC_LEN
),
253 static int initr_console_record(void)
255 #if defined(CONFIG_CONSOLE_RECORD)
256 return console_record_init();
262 #ifdef CONFIG_SYS_NONCACHED_MEMORY
263 static int initr_noncached(void)
270 #ifdef CONFIG_OF_LIVE
271 static int initr_of_live(void)
275 bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE
, "of_live");
276 ret
= of_live_build(gd
->fdt_blob
, (struct device_node
**)&gd
->of_root
);
277 bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE
);
286 static int initr_dm(void)
290 /* Save the pre-reloc driver model and start a new one */
291 gd
->dm_root_f
= gd
->dm_root
;
296 bootstage_start(BOOTSTATE_ID_ACCUM_DM_R
, "dm_r");
297 ret
= dm_init_and_scan(false);
298 bootstage_accum(BOOTSTATE_ID_ACCUM_DM_R
);
301 #ifdef CONFIG_TIMER_EARLY
302 ret
= dm_timer_init();
311 static int initr_bootstage(void)
313 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R
, "board_init_r");
318 __weak
int power_init_board(void)
323 static int initr_announce(void)
325 debug("Now running in RAM - U-Boot at: %08lx\n", gd
->relocaddr
);
329 #ifdef CONFIG_NEEDS_MANUAL_RELOC
330 static int initr_manual_reloc_cmdtable(void)
332 fixup_cmdtable(ll_entry_start(cmd_tbl_t
, cmd
),
333 ll_entry_count(cmd_tbl_t
, cmd
));
338 #if defined(CONFIG_MTD_NOR_FLASH)
339 static int initr_flash(void)
341 ulong flash_size
= 0;
346 if (board_flash_wp_on())
347 printf("Uninitialized - Write Protect On\n");
349 flash_size
= flash_init();
351 print_size(flash_size
, "");
352 #ifdef CONFIG_SYS_FLASH_CHECKSUM
354 * Compute and print flash CRC if flashchecksum is set to 'y'
356 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
358 if (env_get_yesno("flashchecksum") == 1) {
359 const uchar
*flash_base
= (const uchar
*)CONFIG_SYS_FLASH_BASE
;
361 printf(" CRC: %08X", crc32(0,
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
);
380 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
381 /* flash mapped at end of memory map */
382 bd
->bi_flashoffset
= CONFIG_SYS_TEXT_BASE
+ flash_size
;
383 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
384 bd
->bi_flashoffset
= monitor_flash_len
; /* reserved area for monitor */
390 #if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI)
391 static int initr_spi(void)
393 /* PPC does this here */
395 #if !defined(CONFIG_ENV_IS_IN_EEPROM)
404 #ifdef CONFIG_CMD_NAND
405 /* go init the NAND */
406 static int initr_nand(void)
410 printf("%lu MiB\n", nand_size() / 1024);
415 #if defined(CONFIG_CMD_ONENAND)
416 /* go init the NAND */
417 static int initr_onenand(void)
426 static int initr_mmc(void)
429 mmc_initialize(gd
->bd
);
435 * Tell if it's OK to load the environment early in boot.
437 * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
438 * if this is OK (defaulting to saying it's OK).
440 * NOTE: Loading the environment early can be a bad idea if security is
441 * important, since no verification is done on the environment.
443 * @return 0 if environment should not be loaded, !=0 if it is ok to load
445 static int should_load_env(void)
447 #ifdef CONFIG_OF_CONTROL
448 return fdtdec_get_config_int(gd
->fdt_blob
, "load-environment", 1);
449 #elif defined CONFIG_DELAY_ENVIRONMENT
456 static int initr_env(void)
458 /* initialize environment */
459 if (should_load_env())
462 set_default_env(NULL
);
463 #ifdef CONFIG_OF_CONTROL
464 env_set_addr("fdtcontroladdr", gd
->fdt_blob
);
467 /* Initialize from environment */
468 load_addr
= env_get_ulong("loadaddr", 16, load_addr
);
473 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
474 static int initr_malloc_bootparams(void)
476 gd
->bd
->bi_boot_params
= (ulong
)malloc(CONFIG_SYS_BOOTPARAMS_LEN
);
477 if (!gd
->bd
->bi_boot_params
) {
478 puts("WARNING: Cannot allocate space for boot parameters\n");
485 static int initr_jumptable(void)
491 #if defined(CONFIG_API)
492 static int initr_api(void)
500 /* enable exceptions */
502 static int initr_enable_interrupts(void)
509 #ifdef CONFIG_CMD_NET
510 static int initr_ethaddr(void)
514 /* kept around for legacy kernels only ... ignore the next section */
515 eth_env_get_enetaddr("ethaddr", bd
->bi_enetaddr
);
516 #ifdef CONFIG_HAS_ETH1
517 eth_env_get_enetaddr("eth1addr", bd
->bi_enet1addr
);
519 #ifdef CONFIG_HAS_ETH2
520 eth_env_get_enetaddr("eth2addr", bd
->bi_enet2addr
);
522 #ifdef CONFIG_HAS_ETH3
523 eth_env_get_enetaddr("eth3addr", bd
->bi_enet3addr
);
525 #ifdef CONFIG_HAS_ETH4
526 eth_env_get_enetaddr("eth4addr", bd
->bi_enet4addr
);
528 #ifdef CONFIG_HAS_ETH5
529 eth_env_get_enetaddr("eth5addr", bd
->bi_enet5addr
);
533 #endif /* CONFIG_CMD_NET */
535 #ifdef CONFIG_CMD_KGDB
536 static int initr_kgdb(void)
544 #if defined(CONFIG_LED_STATUS)
545 static int initr_status_led(void)
547 #if defined(CONFIG_LED_STATUS_BOOT)
548 status_led_set(CONFIG_LED_STATUS_BOOT
, CONFIG_LED_STATUS_BLINKING
);
556 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
557 static int initr_scsi(void)
566 #ifdef CONFIG_BITBANGMII
567 static int initr_bbmii(void)
574 #ifdef CONFIG_CMD_NET
575 static int initr_net(void)
579 #if defined(CONFIG_RESET_PHY_R)
580 debug("Reset Ethernet PHY\n");
588 static int initr_post(void)
590 post_run(NULL
, POST_RAM
| post_bootmode_get(0));
595 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_IDE)
596 static int initr_pcmcia(void)
604 #if defined(CONFIG_IDE)
605 static int initr_ide(void)
608 #if defined(CONFIG_START_IDE)
609 if (board_start_ide())
618 #if defined(CONFIG_PRAM)
620 * Export available size of memory for Linux, taking into account the
621 * protected RAM at top of memory
628 pram
= env_get_ulong("pram", 10, CONFIG_PRAM
);
629 sprintf(memsz
, "%ldk", (long int)((gd
->ram_size
/ 1024) - pram
));
630 env_set("mem", memsz
);
636 #ifdef CONFIG_CMD_BEDBUG
637 static int initr_bedbug(void)
646 static int initr_kbd(void)
654 static int run_main_loop(void)
656 #ifdef CONFIG_SANDBOX
657 sandbox_main_loop_init();
659 /* main_loop() can return to retry autoboot, if so just run it again */
666 * Over time we hope to remove these functions with code fragments and
667 * stub functions, and instead call the relevant function directly.
669 * We also hope to remove most of the driver-related init and do it if/when
670 * the driver is later used.
672 * TODO: perhaps reset the watchdog in the initcall function after each call?
674 static init_fnc_t init_sequence_r
[] = {
677 /* TODO: could x86/PPC have this also perhaps? */
680 /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
681 * A temporary mapping of IFC high region is since removed,
682 * so environmental variables in NOR flash is not available
683 * until board_init() is called below to remap IFC to high
687 initr_reloc_global_data
,
688 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
689 initr_unlock_ram_in_cache
,
694 initr_bootstage
, /* Needs malloc() but has its own timer */
695 initr_console_record
,
696 #ifdef CONFIG_SYS_NONCACHED_MEMORY
700 #ifdef CONFIG_OF_LIVE
706 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV)
707 board_init
, /* Setup chipselects */
710 * TODO: printing of the clock inforamtion of the board is now
711 * implemented as part of bdinfo command. Currently only support for
712 * davinci SOC's is added. Remove this check once all the board
716 set_cpu_clk_info
, /* Setup clock information */
718 #ifdef CONFIG_EFI_LOADER
724 INIT_FUNC_WATCHDOG_RESET
725 #ifdef CONFIG_NEEDS_MANUAL_RELOC
726 initr_manual_reloc_cmdtable
,
728 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
731 #ifdef CONFIG_ADDR_MAP
734 #if defined(CONFIG_BOARD_EARLY_INIT_R)
737 INIT_FUNC_WATCHDOG_RESET
741 INIT_FUNC_WATCHDOG_RESET
742 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
744 * Do early PCI configuration _before_ the flash gets initialised,
745 * because PCU resources are crucial for flash access on some boards.
749 #ifdef CONFIG_ARCH_EARLY_INIT_R
753 #ifdef CONFIG_MTD_NOR_FLASH
756 INIT_FUNC_WATCHDOG_RESET
757 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
758 /* initialize higher level parts of CPU like time base and timers */
764 #ifdef CONFIG_CMD_NAND
767 #ifdef CONFIG_CMD_ONENAND
774 #ifdef CONFIG_SYS_BOOTPARAMS_LEN
775 initr_malloc_bootparams
,
777 INIT_FUNC_WATCHDOG_RESET
779 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
780 mac_read_from_eeprom
,
782 INIT_FUNC_WATCHDOG_RESET
783 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
785 * Do pci configuration
794 console_init_r
, /* fully init console as a device */
795 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE
799 #ifdef CONFIG_ARCH_MISC_INIT
800 arch_misc_init
, /* miscellaneous arch-dependent init */
802 #ifdef CONFIG_MISC_INIT_R
803 misc_init_r
, /* miscellaneous platform-dependent init */
805 INIT_FUNC_WATCHDOG_RESET
806 #ifdef CONFIG_CMD_KGDB
811 initr_enable_interrupts
,
813 #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K)
814 timer_init
, /* initialize timer */
816 #if defined(CONFIG_LED_STATUS)
819 /* PPC has a udelay(20) here dating from 2002. Why? */
820 #ifdef CONFIG_CMD_NET
823 #ifdef CONFIG_BOARD_LATE_INIT
826 #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
827 INIT_FUNC_WATCHDOG_RESET
830 #ifdef CONFIG_BITBANGMII
833 #ifdef CONFIG_CMD_NET
834 INIT_FUNC_WATCHDOG_RESET
840 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_IDE)
843 #if defined(CONFIG_IDE)
846 #ifdef CONFIG_LAST_STAGE_INIT
847 INIT_FUNC_WATCHDOG_RESET
849 * Some parts can be only initialized if all others (like
850 * Interrupts) are up and running (i.e. the PC-style ISA
855 #ifdef CONFIG_CMD_BEDBUG
856 INIT_FUNC_WATCHDOG_RESET
859 #if defined(CONFIG_PRAM)
868 void board_init_r(gd_t
*new_gd
, ulong dest_addr
)
871 * Set up the new global data pointer. So far only x86 does this
873 * TODO(sjg@chromium.org): Consider doing this for all archs, or
874 * dropping the new_gd parameter.
876 #if CONFIG_IS_ENABLED(X86_64)
877 arch_setup_gd(new_gd
);
880 #ifdef CONFIG_NEEDS_MANUAL_RELOC
884 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
887 gd
->flags
&= ~GD_FLG_LOG_READY
;
889 #ifdef CONFIG_NEEDS_MANUAL_RELOC
890 for (i
= 0; i
< ARRAY_SIZE(init_sequence_r
); i
++)
891 init_sequence_r
[i
] += gd
->reloc_off
;
894 if (initcall_run_list(init_sequence_r
))
897 /* NOTREACHED - run_main_loop() does not return */