1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2011 The Chromium OS Authors.
4 * (C) Copyright 2002-2006
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
9 * Marius Groeger <mgroeger@sysgo.de>
14 #include <bootstage.h>
15 #include <clock_legacy.h>
21 #include <env_internal.h>
39 #include <status_led.h>
45 #include <asm/cache.h>
46 #ifdef CONFIG_MACH_TYPE
47 #include <asm/mach-types.h>
49 #if defined(CONFIG_MP) && defined(CONFIG_PPC)
53 #include <asm/sections.h>
55 #include <linux/errno.h>
58 * Pointer to initial global data area
60 * Here we initialize it if needed.
62 #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR
63 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
64 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
65 DECLARE_GLOBAL_DATA_PTR
= (gd_t
*)(CONFIG_SYS_INIT_GD_ADDR
);
67 DECLARE_GLOBAL_DATA_PTR
;
71 * TODO(sjg@chromium.org): IMO this code should be
72 * refactored to a single function, something like:
74 * void led_set_state(enum led_colour_t colour, int on);
76 /************************************************************************
77 * Coloured LED functionality
78 ************************************************************************
79 * May be supplied by boards if desired
81 __weak
void coloured_LED_init(void) {}
82 __weak
void red_led_on(void) {}
83 __weak
void red_led_off(void) {}
84 __weak
void green_led_on(void) {}
85 __weak
void green_led_off(void) {}
86 __weak
void yellow_led_on(void) {}
87 __weak
void yellow_led_off(void) {}
88 __weak
void blue_led_on(void) {}
89 __weak
void blue_led_off(void) {}
92 * Why is gd allocated a register? Prior to reloc it might be better to
93 * just pass it around to each function in this file?
95 * After reloc one could argue that it is hardly used and doesn't need
96 * to be in a register. Or if it is it should perhaps hold pointers to all
97 * global data for all modules, so that post-reloc we can avoid the massive
98 * literal pool we get on ARM. Or perhaps just encourage each module to use
102 #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
103 static int init_func_watchdog_init(void)
105 # if defined(CONFIG_HW_WATCHDOG) && \
106 (defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
107 defined(CONFIG_SH) || \
108 defined(CONFIG_DESIGNWARE_WATCHDOG) || \
109 defined(CONFIG_IMX_WATCHDOG))
111 puts(" Watchdog enabled\n");
118 int init_func_watchdog_reset(void)
124 #endif /* CONFIG_WATCHDOG */
126 __weak
void board_add_ram_info(int use_default
)
128 /* please define platform specific board_add_ram_info() */
131 static int init_baud_rate(void)
133 gd
->baudrate
= env_get_ulong("baudrate", 10, CONFIG_BAUDRATE
);
137 static int display_text_info(void)
139 #if !defined(CONFIG_SANDBOX) && !defined(CONFIG_EFI_APP)
140 ulong bss_start
, bss_end
, text_base
;
142 bss_start
= (ulong
)&__bss_start
;
143 bss_end
= (ulong
)&__bss_end
;
145 #ifdef CONFIG_SYS_TEXT_BASE
146 text_base
= CONFIG_SYS_TEXT_BASE
;
148 text_base
= CONFIG_SYS_MONITOR_BASE
;
151 debug("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n",
152 text_base
, bss_start
, bss_end
);
158 #ifdef CONFIG_SYSRESET
159 static int print_resetinfo(void)
165 ret
= uclass_first_device_err(UCLASS_SYSRESET
, &dev
);
167 debug("%s: No sysreset device found (error: %d)\n",
169 /* Not all boards have sysreset drivers available during early
170 * boot, so don't fail if one can't be found.
175 if (!sysreset_get_status(dev
, status
, sizeof(status
)))
176 printf("%s", status
);
182 #if defined(CONFIG_DISPLAY_CPUINFO) && CONFIG_IS_ENABLED(CPU)
183 static int print_cpuinfo(void)
189 dev
= cpu_get_current_dev();
191 debug("%s: Could not get CPU device\n",
196 ret
= cpu_get_desc(dev
, desc
, sizeof(desc
));
198 debug("%s: Could not get CPU description (err = %d)\n",
203 printf("CPU: %s\n", desc
);
209 static int announce_dram_init(void)
215 static int show_dram_config(void)
217 unsigned long long size
;
219 #ifdef CONFIG_NR_DRAM_BANKS
222 debug("\nRAM Configuration:\n");
223 for (i
= size
= 0; i
< CONFIG_NR_DRAM_BANKS
; i
++) {
224 size
+= gd
->bd
->bi_dram
[i
].size
;
225 debug("Bank #%d: %llx ", i
,
226 (unsigned long long)(gd
->bd
->bi_dram
[i
].start
));
228 print_size(gd
->bd
->bi_dram
[i
].size
, "\n");
236 print_size(size
, "");
237 board_add_ram_info(0);
243 __weak
int dram_init_banksize(void)
245 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
246 gd
->bd
->bi_dram
[0].start
= CONFIG_SYS_SDRAM_BASE
;
247 gd
->bd
->bi_dram
[0].size
= get_effective_memsize();
253 #if defined(CONFIG_SYS_I2C)
254 static int init_func_i2c(void)
257 #ifdef CONFIG_SYS_I2C
260 i2c_init(CONFIG_SYS_I2C_SPEED
, CONFIG_SYS_I2C_SLAVE
);
267 #if defined(CONFIG_VID)
268 __weak
int init_func_vid(void)
274 static int setup_mon_len(void)
276 #if defined(__ARM__) || defined(__MICROBLAZE__)
277 gd
->mon_len
= (ulong
)&__bss_end
- (ulong
)_start
;
278 #elif defined(CONFIG_SANDBOX) || defined(CONFIG_EFI_APP)
279 gd
->mon_len
= (ulong
)&_end
- (ulong
)_init
;
280 #elif defined(CONFIG_NIOS2) || defined(CONFIG_XTENSA)
281 gd
->mon_len
= CONFIG_SYS_MONITOR_LEN
;
282 #elif defined(CONFIG_NDS32) || defined(CONFIG_SH) || defined(CONFIG_RISCV)
283 gd
->mon_len
= (ulong
)(&__bss_end
) - (ulong
)(&_start
);
284 #elif defined(CONFIG_SYS_MONITOR_BASE)
285 /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
286 gd
->mon_len
= (ulong
)&__bss_end
- CONFIG_SYS_MONITOR_BASE
;
291 static int setup_spl_handoff(void)
293 #if CONFIG_IS_ENABLED(HANDOFF)
294 gd
->spl_handoff
= bloblist_find(BLOBLISTT_SPL_HANDOFF
,
295 sizeof(struct spl_handoff
));
296 debug("Found SPL hand-off info %p\n", gd
->spl_handoff
);
302 __weak
int arch_cpu_init(void)
307 __weak
int mach_cpu_init(void)
312 /* Get the top of usable RAM */
313 __weak ulong
board_get_usable_ram_top(ulong total_size
)
315 #if defined(CONFIG_SYS_SDRAM_BASE) && CONFIG_SYS_SDRAM_BASE > 0
317 * Detect whether we have so much RAM that it goes past the end of our
318 * 32-bit address space. If so, clip the usable RAM so it doesn't.
320 if (gd
->ram_top
< CONFIG_SYS_SDRAM_BASE
)
322 * Will wrap back to top of 32-bit space when reservations
330 static int setup_dest_addr(void)
332 debug("Monitor len: %08lX\n", gd
->mon_len
);
334 * Ram is setup, size stored in gd !!
336 debug("Ram size: %08lX\n", (ulong
)gd
->ram_size
);
337 #if defined(CONFIG_SYS_MEM_TOP_HIDE)
339 * Subtract specified amount of memory to hide so that it won't
340 * get "touched" at all by U-Boot. By fixing up gd->ram_size
341 * the Linux kernel should now get passed the now "corrected"
342 * memory size and won't touch it either. This should work
343 * for arch/ppc and arch/powerpc. Only Linux board ports in
344 * arch/powerpc with bootwrapper support, that recalculate the
345 * memory size from the SDRAM controller setup will have to
348 gd
->ram_size
-= CONFIG_SYS_MEM_TOP_HIDE
;
350 #ifdef CONFIG_SYS_SDRAM_BASE
351 gd
->ram_base
= CONFIG_SYS_SDRAM_BASE
;
353 gd
->ram_top
= gd
->ram_base
+ get_effective_memsize();
354 gd
->ram_top
= board_get_usable_ram_top(gd
->mon_len
);
355 gd
->relocaddr
= gd
->ram_top
;
356 debug("Ram top: %08lX\n", (ulong
)gd
->ram_top
);
357 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
359 * We need to make sure the location we intend to put secondary core
360 * boot code is reserved and not used by any part of u-boot
362 if (gd
->relocaddr
> determine_mp_bootpg(NULL
)) {
363 gd
->relocaddr
= determine_mp_bootpg(NULL
);
364 debug("Reserving MP boot page to %08lx\n", gd
->relocaddr
);
371 /* reserve protected RAM */
372 static int reserve_pram(void)
376 reg
= env_get_ulong("pram", 10, CONFIG_PRAM
);
377 gd
->relocaddr
-= (reg
<< 10); /* size is in kB */
378 debug("Reserving %ldk for protected RAM at %08lx\n", reg
,
382 #endif /* CONFIG_PRAM */
384 /* Round memory pointer down to next 4 kB limit */
385 static int reserve_round_4k(void)
387 gd
->relocaddr
&= ~(4096 - 1);
391 __weak
int arch_reserve_mmu(void)
396 static int reserve_video(void)
398 #ifdef CONFIG_DM_VIDEO
402 addr
= gd
->relocaddr
;
403 ret
= video_reserve(&addr
);
406 gd
->relocaddr
= addr
;
407 #elif defined(CONFIG_LCD)
408 # ifdef CONFIG_FB_ADDR
409 gd
->fb_base
= CONFIG_FB_ADDR
;
411 /* reserve memory for LCD display (always full pages) */
412 gd
->relocaddr
= lcd_setmem(gd
->relocaddr
);
413 gd
->fb_base
= gd
->relocaddr
;
414 # endif /* CONFIG_FB_ADDR */
420 static int reserve_trace(void)
423 gd
->relocaddr
-= CONFIG_TRACE_BUFFER_SIZE
;
424 gd
->trace_buff
= map_sysmem(gd
->relocaddr
, CONFIG_TRACE_BUFFER_SIZE
);
425 debug("Reserving %luk for trace data at: %08lx\n",
426 (unsigned long)CONFIG_TRACE_BUFFER_SIZE
>> 10, gd
->relocaddr
);
432 static int reserve_uboot(void)
434 if (!(gd
->flags
& GD_FLG_SKIP_RELOC
)) {
436 * reserve memory for U-Boot code, data & bss
437 * round down to next 4 kB limit
439 gd
->relocaddr
-= gd
->mon_len
;
440 gd
->relocaddr
&= ~(4096 - 1);
441 #if defined(CONFIG_E500) || defined(CONFIG_MIPS)
442 /* round down to next 64 kB limit so that IVPR stays aligned */
443 gd
->relocaddr
&= ~(65536 - 1);
446 debug("Reserving %ldk for U-Boot at: %08lx\n",
447 gd
->mon_len
>> 10, gd
->relocaddr
);
450 gd
->start_addr_sp
= gd
->relocaddr
;
456 * reserve after start_addr_sp the requested size and make the stack pointer
457 * 16-byte aligned, this alignment is needed for cast on the reserved memory
458 * ref = x86_64 ABI: https://reviews.llvm.org/D30049: 16 bytes
459 * = ARMv8 Instruction Set Overview: quad word, 16 bytes
461 static unsigned long reserve_stack_aligned(size_t size
)
463 return ALIGN_DOWN(gd
->start_addr_sp
- size
, 16);
466 #ifdef CONFIG_SYS_NONCACHED_MEMORY
467 static int reserve_noncached(void)
470 * The value of gd->start_addr_sp must match the value of malloc_start
471 * calculated in boatrd_f.c:initr_malloc(), which is passed to
472 * board_r.c:mem_malloc_init() and then used by
473 * cache.c:noncached_init()
475 * These calculations must match the code in cache.c:noncached_init()
477 gd
->start_addr_sp
= ALIGN(gd
->start_addr_sp
, MMU_SECTION_SIZE
) -
479 gd
->start_addr_sp
-= ALIGN(CONFIG_SYS_NONCACHED_MEMORY
,
481 debug("Reserving %dM for noncached_alloc() at: %08lx\n",
482 CONFIG_SYS_NONCACHED_MEMORY
>> 20, gd
->start_addr_sp
);
488 /* reserve memory for malloc() area */
489 static int reserve_malloc(void)
491 gd
->start_addr_sp
= reserve_stack_aligned(TOTAL_MALLOC_LEN
);
492 debug("Reserving %dk for malloc() at: %08lx\n",
493 TOTAL_MALLOC_LEN
>> 10, gd
->start_addr_sp
);
494 #ifdef CONFIG_SYS_NONCACHED_MEMORY
501 /* (permanently) allocate a Board Info struct */
502 static int reserve_board(void)
505 gd
->start_addr_sp
= reserve_stack_aligned(sizeof(bd_t
));
506 gd
->bd
= (bd_t
*)map_sysmem(gd
->start_addr_sp
, sizeof(bd_t
));
507 memset(gd
->bd
, '\0', sizeof(bd_t
));
508 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
509 sizeof(bd_t
), gd
->start_addr_sp
);
514 static int setup_machine(void)
516 #ifdef CONFIG_MACH_TYPE
517 gd
->bd
->bi_arch_number
= CONFIG_MACH_TYPE
; /* board id for Linux */
522 static int reserve_global_data(void)
524 gd
->start_addr_sp
= reserve_stack_aligned(sizeof(gd_t
));
525 gd
->new_gd
= (gd_t
*)map_sysmem(gd
->start_addr_sp
, sizeof(gd_t
));
526 debug("Reserving %zu Bytes for Global Data at: %08lx\n",
527 sizeof(gd_t
), gd
->start_addr_sp
);
531 static int reserve_fdt(void)
533 #ifndef CONFIG_OF_EMBED
535 * If the device tree is sitting immediately above our image then we
536 * must relocate it. If it is embedded in the data section, then it
537 * will be relocated with other data.
540 gd
->fdt_size
= ALIGN(fdt_totalsize(gd
->fdt_blob
) + 0x1000, 32);
542 gd
->start_addr_sp
= reserve_stack_aligned(gd
->fdt_size
);
543 gd
->new_fdt
= map_sysmem(gd
->start_addr_sp
, gd
->fdt_size
);
544 debug("Reserving %lu Bytes for FDT at: %08lx\n",
545 gd
->fdt_size
, gd
->start_addr_sp
);
552 static int reserve_bootstage(void)
554 #ifdef CONFIG_BOOTSTAGE
555 int size
= bootstage_get_size();
557 gd
->start_addr_sp
= reserve_stack_aligned(size
);
558 gd
->new_bootstage
= map_sysmem(gd
->start_addr_sp
, size
);
559 debug("Reserving %#x Bytes for bootstage at: %08lx\n", size
,
566 __weak
int arch_reserve_stacks(void)
571 static int reserve_stacks(void)
573 /* make stack pointer 16-byte aligned */
574 gd
->start_addr_sp
= reserve_stack_aligned(16);
577 * let the architecture-specific code tailor gd->start_addr_sp and
580 return arch_reserve_stacks();
583 static int reserve_bloblist(void)
585 #ifdef CONFIG_BLOBLIST
586 gd
->start_addr_sp
= reserve_stack_aligned(CONFIG_BLOBLIST_SIZE
);
587 gd
->new_bloblist
= map_sysmem(gd
->start_addr_sp
, CONFIG_BLOBLIST_SIZE
);
593 static int display_new_sp(void)
595 debug("New Stack Pointer is: %08lx\n", gd
->start_addr_sp
);
600 #if defined(CONFIG_M68K) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || \
602 static int setup_board_part1(void)
607 * Save local variables to board info struct
609 bd
->bi_memstart
= CONFIG_SYS_SDRAM_BASE
; /* start of memory */
610 bd
->bi_memsize
= gd
->ram_size
; /* size in bytes */
612 #ifdef CONFIG_SYS_SRAM_BASE
613 bd
->bi_sramstart
= CONFIG_SYS_SRAM_BASE
; /* start of SRAM */
614 bd
->bi_sramsize
= CONFIG_SYS_SRAM_SIZE
; /* size of SRAM */
617 #if defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
618 bd
->bi_immr_base
= CONFIG_SYS_IMMR
; /* base of IMMR register */
620 #if defined(CONFIG_M68K)
621 bd
->bi_mbar_base
= CONFIG_SYS_MBAR
; /* base of internal registers */
623 #if defined(CONFIG_MPC83xx)
624 bd
->bi_immrbar
= CONFIG_SYS_IMMR
;
631 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
632 static int setup_board_part2(void)
636 bd
->bi_intfreq
= gd
->cpu_clk
; /* Internal Freq, in Hz */
637 bd
->bi_busfreq
= gd
->bus_clk
; /* Bus Freq, in Hz */
638 #if defined(CONFIG_CPM2)
639 bd
->bi_cpmfreq
= gd
->arch
.cpm_clk
;
640 bd
->bi_brgfreq
= gd
->arch
.brg_clk
;
641 bd
->bi_sccfreq
= gd
->arch
.scc_clk
;
642 bd
->bi_vco
= gd
->arch
.vco_out
;
643 #endif /* CONFIG_CPM2 */
644 #if defined(CONFIG_M68K) && defined(CONFIG_PCI)
645 bd
->bi_pcifreq
= gd
->pci_clk
;
647 #if defined(CONFIG_EXTRA_CLOCK)
648 bd
->bi_inpfreq
= gd
->arch
.inp_clk
; /* input Freq in Hz */
649 bd
->bi_vcofreq
= gd
->arch
.vco_clk
; /* vco Freq in Hz */
650 bd
->bi_flbfreq
= gd
->arch
.flb_clk
; /* flexbus Freq in Hz */
658 static int init_post(void)
660 post_bootmode_init();
661 post_run(NULL
, POST_ROM
| post_bootmode_get(0));
667 static int reloc_fdt(void)
669 #ifndef CONFIG_OF_EMBED
670 if (gd
->flags
& GD_FLG_SKIP_RELOC
)
673 memcpy(gd
->new_fdt
, gd
->fdt_blob
, gd
->fdt_size
);
674 gd
->fdt_blob
= gd
->new_fdt
;
681 static int reloc_bootstage(void)
683 #ifdef CONFIG_BOOTSTAGE
684 if (gd
->flags
& GD_FLG_SKIP_RELOC
)
686 if (gd
->new_bootstage
) {
687 int size
= bootstage_get_size();
689 debug("Copying bootstage from %p to %p, size %x\n",
690 gd
->bootstage
, gd
->new_bootstage
, size
);
691 memcpy(gd
->new_bootstage
, gd
->bootstage
, size
);
692 gd
->bootstage
= gd
->new_bootstage
;
693 bootstage_relocate();
700 static int reloc_bloblist(void)
702 #ifdef CONFIG_BLOBLIST
703 if (gd
->flags
& GD_FLG_SKIP_RELOC
)
705 if (gd
->new_bloblist
) {
706 int size
= CONFIG_BLOBLIST_SIZE
;
708 debug("Copying bloblist from %p to %p, size %x\n",
709 gd
->bloblist
, gd
->new_bloblist
, size
);
710 memcpy(gd
->new_bloblist
, gd
->bloblist
, size
);
711 gd
->bloblist
= gd
->new_bloblist
;
718 static int setup_reloc(void)
720 if (gd
->flags
& GD_FLG_SKIP_RELOC
) {
721 debug("Skipping relocation due to flag\n");
725 #ifdef CONFIG_SYS_TEXT_BASE
727 gd
->reloc_off
= gd
->relocaddr
- (unsigned long)__image_copy_start
;
728 #elif defined(CONFIG_M68K)
730 * On all ColdFire arch cpu, monitor code starts always
731 * just after the default vector table location, so at 0x400
733 gd
->reloc_off
= gd
->relocaddr
- (CONFIG_SYS_TEXT_BASE
+ 0x400);
734 #elif !defined(CONFIG_SANDBOX)
735 gd
->reloc_off
= gd
->relocaddr
- CONFIG_SYS_TEXT_BASE
;
738 memcpy(gd
->new_gd
, (char *)gd
, sizeof(gd_t
));
740 debug("Relocation Offset is: %08lx\n", gd
->reloc_off
);
741 debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
742 gd
->relocaddr
, (ulong
)map_to_sysmem(gd
->new_gd
),
748 #ifdef CONFIG_OF_BOARD_FIXUP
749 static int fix_fdt(void)
751 return board_fix_fdt((void *)gd
->fdt_blob
);
755 /* ARM calls relocate_code from its crt0.S */
756 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
757 !CONFIG_IS_ENABLED(X86_64)
759 static int jump_to_copy(void)
761 if (gd
->flags
& GD_FLG_SKIP_RELOC
)
764 * x86 is special, but in a nice way. It uses a trampoline which
765 * enables the dcache if possible.
767 * For now, other archs use relocate_code(), which is implemented
768 * similarly for all archs. When we do generic relocation, hopefully
769 * we can make all archs enable the dcache prior to relocation.
771 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
773 * SDRAM and console are now initialised. The final stack can now
774 * be setup in SDRAM. Code execution will continue in Flash, but
775 * with the stack in SDRAM and Global Data in temporary memory
778 arch_setup_gd(gd
->new_gd
);
779 board_init_f_r_trampoline(gd
->start_addr_sp
);
781 relocate_code(gd
->start_addr_sp
, gd
->new_gd
, gd
->relocaddr
);
788 /* Record the board_init_f() bootstage (after arch_cpu_init()) */
789 static int initf_bootstage(void)
791 bool from_spl
= IS_ENABLED(CONFIG_SPL_BOOTSTAGE
) &&
792 IS_ENABLED(CONFIG_BOOTSTAGE_STASH
);
795 ret
= bootstage_init(!from_spl
);
799 const void *stash
= map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR
,
800 CONFIG_BOOTSTAGE_STASH_SIZE
);
802 ret
= bootstage_unstash(stash
, CONFIG_BOOTSTAGE_STASH_SIZE
);
803 if (ret
&& ret
!= -ENOENT
) {
804 debug("Failed to unstash bootstage: err=%d\n", ret
);
809 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F
, "board_init_f");
814 static int initf_console_record(void)
816 #if defined(CONFIG_CONSOLE_RECORD) && CONFIG_VAL(SYS_MALLOC_F_LEN)
817 return console_record_init();
823 static int initf_dm(void)
825 #if defined(CONFIG_DM) && CONFIG_VAL(SYS_MALLOC_F_LEN)
828 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_F
, "dm_f");
829 ret
= dm_init_and_scan(true);
830 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_F
);
834 #ifdef CONFIG_TIMER_EARLY
835 ret
= dm_timer_init();
843 /* Architecture-specific memory reservation */
844 __weak
int reserve_arch(void)
849 __weak
int arch_cpu_init_dm(void)
854 __weak
int checkcpu(void)
859 __weak
int clear_bss(void)
864 static const init_fnc_t init_sequence_f
[] = {
866 #ifdef CONFIG_OF_CONTROL
869 #ifdef CONFIG_TRACE_EARLY
874 initf_bootstage
, /* uses its own timer, so does not need DM */
875 #ifdef CONFIG_BLOBLIST
879 initf_console_record
,
880 #if defined(CONFIG_HAVE_FSP)
883 arch_cpu_init
, /* basic arch cpu dependent setup */
884 mach_cpu_init
, /* SoC/machine dependent CPU setup */
887 #if defined(CONFIG_BOARD_EARLY_INIT_F)
890 #if defined(CONFIG_PPC) || defined(CONFIG_SYS_FSL_CLK) || defined(CONFIG_M68K)
891 /* get CPU and bus clocks according to the environment variable */
892 get_clocks
, /* get CPU and bus clocks (etc.) */
894 #if !defined(CONFIG_M68K)
895 timer_init
, /* initialize timer */
897 #if defined(CONFIG_BOARD_POSTCLK_INIT)
900 env_init
, /* initialize environment */
901 init_baud_rate
, /* initialze baudrate settings */
902 serial_init
, /* serial communications setup */
903 console_init_f
, /* stage 1 init of console */
904 display_options
, /* say that we are here */
905 display_text_info
, /* show debugging info if required */
907 #if defined(CONFIG_SYSRESET)
910 #if defined(CONFIG_DISPLAY_CPUINFO)
911 print_cpuinfo
, /* display cpu info (and speed) */
913 #if defined(CONFIG_DTB_RESELECT)
916 #if defined(CONFIG_DISPLAY_BOARDINFO)
919 INIT_FUNC_WATCHDOG_INIT
920 #if defined(CONFIG_MISC_INIT_F)
923 INIT_FUNC_WATCHDOG_RESET
924 #if defined(CONFIG_SYS_I2C)
927 #if defined(CONFIG_VID) && !defined(CONFIG_SPL)
931 dram_init
, /* configure available RAM banks */
935 INIT_FUNC_WATCHDOG_RESET
936 #if defined(CONFIG_SYS_DRAM_TEST)
938 #endif /* CONFIG_SYS_DRAM_TEST */
939 INIT_FUNC_WATCHDOG_RESET
944 INIT_FUNC_WATCHDOG_RESET
946 * Now that we have DRAM mapped and working, we can
947 * relocate the code and continue running from DRAM.
949 * Reserve memory at end of RAM for (top down in that order):
950 * - area that won't get touched by U-Boot and Linux (optional)
951 * - kernel log buffer
955 * - board info struct
977 #if defined(CONFIG_M68K) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || \
981 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
982 INIT_FUNC_WATCHDOG_RESET
986 #ifdef CONFIG_OF_BOARD_FIXUP
989 INIT_FUNC_WATCHDOG_RESET
994 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
999 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
1000 !CONFIG_IS_ENABLED(X86_64)
1006 void board_init_f(ulong boot_flags
)
1008 gd
->flags
= boot_flags
;
1009 gd
->have_console
= 0;
1011 if (initcall_run_list(init_sequence_f
))
1014 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
1015 !defined(CONFIG_EFI_APP) && !CONFIG_IS_ENABLED(X86_64) && \
1016 !defined(CONFIG_ARC)
1017 /* NOTREACHED - jump_to_copy() does not return */
1022 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
1024 * For now this code is only used on x86.
1026 * init_sequence_f_r is the list of init functions which are run when
1027 * U-Boot is executing from Flash with a semi-limited 'C' environment.
1028 * The following limitations must be considered when implementing an
1030 * - 'static' variables are read-only
1031 * - Global Data (gd->xxx) is read/write
1033 * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
1034 * supported). It _should_, if possible, copy global data to RAM and
1035 * initialise the CPU caches (to speed up the relocation process)
1037 * NOTE: At present only x86 uses this route, but it is intended that
1038 * all archs will move to this when generic relocation is implemented.
1040 static const init_fnc_t init_sequence_f_r
[] = {
1041 #if !CONFIG_IS_ENABLED(X86_64)
1048 void board_init_f_r(void)
1050 if (initcall_run_list(init_sequence_f_r
))
1054 * The pre-relocation drivers may be using memory that has now gone
1055 * away. Mark serial as unavailable - this will fall back to the debug
1056 * UART if available.
1058 * Do the same with log drivers since the memory may not be available.
1060 gd
->flags
&= ~(GD_FLG_SERIAL_READY
| GD_FLG_LOG_READY
);
1066 * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1067 * Transfer execution from Flash to RAM by calculating the address
1068 * of the in-RAM copy of board_init_r() and calling it
1070 (board_init_r
+ gd
->reloc_off
)((gd_t
*)gd
, gd
->relocaddr
);
1072 /* NOTREACHED - board_init_r() does not return */
1075 #endif /* CONFIG_X86 */