2 * Copyright (c) 2011 The Chromium OS Authors.
3 * (C) Copyright 2002-2006
7 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
10 * SPDX-License-Identifier: GPL-2.0+
14 #include <linux/compiler.h>
17 #include <environment.h>
21 #if defined(CONFIG_CMD_IDE)
30 /* TODO: Can we move these into arch/ headers? */
40 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
47 #include <status_led.h>
52 #include <linux/errno.h>
54 #include <asm/sections.h>
55 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
56 #include <asm/init_helpers.h>
58 #if defined(CONFIG_X86) || defined(CONFIG_ARC) || defined(CONFIG_XTENSA)
59 #include <asm/relocate.h>
62 #include <asm/state.h>
65 #include <linux/compiler.h>
68 * Pointer to initial global data area
70 * Here we initialize it if needed.
72 #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR
73 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
74 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
75 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);
77 DECLARE_GLOBAL_DATA_PTR;
82 * refactored to a single function, something like:
84 * void led_set_state(enum led_colour_t colour, int on);
86 /************************************************************************
87 * Coloured LED functionality
88 ************************************************************************
89 * May be supplied by boards if desired
91 __weak void coloured_LED_init(void) {}
92 __weak void red_led_on(void) {}
93 __weak void red_led_off(void) {}
94 __weak void green_led_on(void) {}
95 __weak void green_led_off(void) {}
96 __weak void yellow_led_on(void) {}
97 __weak void yellow_led_off(void) {}
98 __weak void blue_led_on(void) {}
99 __weak void blue_led_off(void) {}
102 * Why is gd allocated a register? Prior to reloc it might be better to
103 * just pass it around to each function in this file?
105 * After reloc one could argue that it is hardly used and doesn't need
106 * to be in a register. Or if it is it should perhaps hold pointers to all
107 * global data for all modules, so that post-reloc we can avoid the massive
108 * literal pool we get on ARM. Or perhaps just encourage each module to use
113 * Could the CONFIG_SPL_BUILD infection become a flag in gd?
116 #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
117 static int init_func_watchdog_init(void)
119 # if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \
120 defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
121 defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \
122 defined(CONFIG_DESIGNWARE_WATCHDOG) || \
123 defined(CONFIG_IMX_WATCHDOG))
125 puts(" Watchdog enabled\n");
132 int init_func_watchdog_reset(void)
138 #endif /* CONFIG_WATCHDOG */
140 __weak void board_add_ram_info(int use_default)
142 /* please define platform specific board_add_ram_info() */
145 static int init_baud_rate(void)
147 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
151 static int display_text_info(void)
153 #if !defined(CONFIG_SANDBOX) && !defined(CONFIG_EFI_APP)
154 ulong bss_start, bss_end, text_base;
156 bss_start = (ulong)&__bss_start;
157 bss_end = (ulong)&__bss_end;
159 #ifdef CONFIG_SYS_TEXT_BASE
160 text_base = CONFIG_SYS_TEXT_BASE;
162 text_base = CONFIG_SYS_MONITOR_BASE;
165 debug("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n",
166 text_base, bss_start, bss_end);
169 #ifdef CONFIG_USE_IRQ
170 debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
171 debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
177 static int announce_dram_init(void)
183 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
184 static int init_func_ram(void)
186 #ifdef CONFIG_BOARD_TYPES
187 int board_type = gd->board_type;
189 int board_type = 0; /* use dummy arg */
192 gd->ram_size = initdram(board_type);
194 if (gd->ram_size > 0)
197 puts("*** failed ***\n");
202 static int show_dram_config(void)
204 unsigned long long size;
206 #ifdef CONFIG_NR_DRAM_BANKS
209 debug("\nRAM Configuration:\n");
210 for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
211 size += gd->bd->bi_dram[i].size;
212 debug("Bank #%d: %llx ", i,
213 (unsigned long long)(gd->bd->bi_dram[i].start));
215 print_size(gd->bd->bi_dram[i].size, "\n");
223 print_size(size, "");
224 board_add_ram_info(0);
230 __weak void dram_init_banksize(void)
232 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
233 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
234 gd->bd->bi_dram[0].size = get_effective_memsize();
238 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
239 static int init_func_i2c(void)
242 #ifdef CONFIG_SYS_I2C
245 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
252 #if defined(CONFIG_HARD_SPI)
253 static int init_func_spi(void)
263 static int zero_global_data(void)
265 memset((void *)gd, '\0', sizeof(gd_t));
270 static int setup_mon_len(void)
272 #if defined(__ARM__) || defined(__MICROBLAZE__)
273 gd->mon_len = (ulong)&__bss_end - (ulong)_start;
274 #elif defined(CONFIG_SANDBOX) || defined(CONFIG_EFI_APP)
275 gd->mon_len = (ulong)&_end - (ulong)_init;
276 #elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2) || \
277 defined(CONFIG_XTENSA)
278 gd->mon_len = CONFIG_SYS_MONITOR_LEN;
279 #elif defined(CONFIG_NDS32) || defined(CONFIG_SH)
280 gd->mon_len = (ulong)(&__bss_end) - (ulong)(&_start);
281 #elif defined(CONFIG_SYS_MONITOR_BASE)
282 /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
283 gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
288 __weak int arch_cpu_init(void)
293 __weak int mach_cpu_init(void)
298 #ifdef CONFIG_SANDBOX
299 static int setup_ram_buf(void)
301 struct sandbox_state *state = state_get_current();
303 gd->arch.ram_buf = state->ram_buf;
304 gd->ram_size = state->ram_size;
310 /* Get the top of usable RAM */
311 __weak ulong board_get_usable_ram_top(ulong total_size)
313 #ifdef CONFIG_SYS_SDRAM_BASE
315 * Detect whether we have so much RAM that it goes past the end of our
316 * 32-bit address space. If so, clip the usable RAM so it doesn't.
318 if (gd->ram_top < CONFIG_SYS_SDRAM_BASE)
320 * Will wrap back to top of 32-bit space when reservations
328 static int setup_dest_addr(void)
330 debug("Monitor len: %08lX\n", gd->mon_len);
332 * Ram is setup, size stored in gd !!
334 debug("Ram size: %08lX\n", (ulong)gd->ram_size);
335 #if defined(CONFIG_SYS_MEM_TOP_HIDE)
337 * Subtract specified amount of memory to hide so that it won't
338 * get "touched" at all by U-Boot. By fixing up gd->ram_size
339 * the Linux kernel should now get passed the now "corrected"
340 * memory size and won't touch it either. This should work
341 * for arch/ppc and arch/powerpc. Only Linux board ports in
342 * arch/powerpc with bootwrapper support, that recalculate the
343 * memory size from the SDRAM controller setup will have to
346 gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
348 #ifdef CONFIG_SYS_SDRAM_BASE
349 gd->ram_top = CONFIG_SYS_SDRAM_BASE;
351 gd->ram_top += get_effective_memsize();
352 gd->ram_top = board_get_usable_ram_top(gd->mon_len);
353 gd->relocaddr = gd->ram_top;
354 debug("Ram top: %08lX\n", (ulong)gd->ram_top);
355 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
357 * We need to make sure the location we intend to put secondary core
358 * boot code is reserved and not used by any part of u-boot
360 if (gd->relocaddr > determine_mp_bootpg(NULL)) {
361 gd->relocaddr = determine_mp_bootpg(NULL);
362 debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
368 #if defined(CONFIG_SPARC)
369 static int reserve_prom(void)
371 /* defined in arch/sparc/cpu/leon?/prom.c */
372 extern void *__prom_start_reloc;
373 int size = 8192; /* page table = 2k, prom = 6k */
374 gd->relocaddr -= size;
375 __prom_start_reloc = map_sysmem(gd->relocaddr + 2048, size - 2048);
376 debug("Reserving %dk for PROM and page table at %08lx\n", size,
382 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
383 static int reserve_logbuffer(void)
385 /* reserve kernel log buffer */
386 gd->relocaddr -= LOGBUFF_RESERVE;
387 debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
394 /* reserve protected RAM */
395 static int reserve_pram(void)
399 reg = getenv_ulong("pram", 10, CONFIG_PRAM);
400 gd->relocaddr -= (reg << 10); /* size is in kB */
401 debug("Reserving %ldk for protected RAM at %08lx\n", reg,
405 #endif /* CONFIG_PRAM */
407 /* Round memory pointer down to next 4 kB limit */
408 static int reserve_round_4k(void)
410 gd->relocaddr &= ~(4096 - 1);
414 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
416 static int reserve_mmu(void)
418 /* reserve TLB table */
419 gd->arch.tlb_size = PGTABLE_SIZE;
420 gd->relocaddr -= gd->arch.tlb_size;
422 /* round down to next 64 kB limit */
423 gd->relocaddr &= ~(0x10000 - 1);
425 gd->arch.tlb_addr = gd->relocaddr;
426 debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
427 gd->arch.tlb_addr + gd->arch.tlb_size);
429 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
431 * Record allocated tlb_addr in case gd->tlb_addr to be overwritten
432 * with location within secure ram.
434 gd->arch.tlb_allocated = gd->arch.tlb_addr;
441 #ifdef CONFIG_DM_VIDEO
442 static int reserve_video(void)
447 addr = gd->relocaddr;
448 ret = video_reserve(&addr);
451 gd->relocaddr = addr;
458 static int reserve_lcd(void)
460 # ifdef CONFIG_FB_ADDR
461 gd->fb_base = CONFIG_FB_ADDR;
463 /* reserve memory for LCD display (always full pages) */
464 gd->relocaddr = lcd_setmem(gd->relocaddr);
465 gd->fb_base = gd->relocaddr;
466 # endif /* CONFIG_FB_ADDR */
470 # endif /* CONFIG_LCD */
472 # if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
473 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
474 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
475 static int reserve_legacy_video(void)
477 /* reserve memory for video display (always full pages) */
478 gd->relocaddr = video_setmem(gd->relocaddr);
479 gd->fb_base = gd->relocaddr;
484 #endif /* !CONFIG_DM_VIDEO */
486 static int reserve_trace(void)
489 gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
490 gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
491 debug("Reserving %dk for trace data at: %08lx\n",
492 CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
498 static int reserve_uboot(void)
501 * reserve memory for U-Boot code, data & bss
502 * round down to next 4 kB limit
504 gd->relocaddr -= gd->mon_len;
505 gd->relocaddr &= ~(4096 - 1);
507 /* round down to next 64 kB limit so that IVPR stays aligned */
508 gd->relocaddr &= ~(65536 - 1);
511 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
514 gd->start_addr_sp = gd->relocaddr;
519 #ifndef CONFIG_SPL_BUILD
520 /* reserve memory for malloc() area */
521 static int reserve_malloc(void)
523 gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
524 debug("Reserving %dk for malloc() at: %08lx\n",
525 TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
529 /* (permanently) allocate a Board Info struct */
530 static int reserve_board(void)
533 gd->start_addr_sp -= sizeof(bd_t);
534 gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t));
535 memset(gd->bd, '\0', sizeof(bd_t));
536 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
537 sizeof(bd_t), gd->start_addr_sp);
543 static int setup_machine(void)
545 #ifdef CONFIG_MACH_TYPE
546 gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
551 static int reserve_global_data(void)
553 gd->start_addr_sp -= sizeof(gd_t);
554 gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
555 debug("Reserving %zu Bytes for Global Data at: %08lx\n",
556 sizeof(gd_t), gd->start_addr_sp);
560 static int reserve_fdt(void)
562 #ifndef CONFIG_OF_EMBED
564 * If the device tree is sitting immediately above our image then we
565 * must relocate it. If it is embedded in the data section, then it
566 * will be relocated with other data.
569 gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
571 gd->start_addr_sp -= gd->fdt_size;
572 gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
573 debug("Reserving %lu Bytes for FDT at: %08lx\n",
574 gd->fdt_size, gd->start_addr_sp);
581 int arch_reserve_stacks(void)
586 static int reserve_stacks(void)
588 /* make stack pointer 16-byte aligned */
589 gd->start_addr_sp -= 16;
590 gd->start_addr_sp &= ~0xf;
593 * let the architecture-specific code tailor gd->start_addr_sp and
596 return arch_reserve_stacks();
599 static int display_new_sp(void)
601 debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
606 #if defined(CONFIG_M68K) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || \
608 static int setup_board_part1(void)
613 * Save local variables to board info struct
615 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of memory */
616 bd->bi_memsize = gd->ram_size; /* size in bytes */
618 #ifdef CONFIG_SYS_SRAM_BASE
619 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM */
620 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM */
623 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \
624 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
625 bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */
627 #if defined(CONFIG_MPC5xxx) || defined(CONFIG_M68K)
628 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
630 #if defined(CONFIG_MPC83xx)
631 bd->bi_immrbar = CONFIG_SYS_IMMR;
638 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
639 static int setup_board_part2(void)
643 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
644 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
645 #if defined(CONFIG_CPM2)
646 bd->bi_cpmfreq = gd->arch.cpm_clk;
647 bd->bi_brgfreq = gd->arch.brg_clk;
648 bd->bi_sccfreq = gd->arch.scc_clk;
649 bd->bi_vco = gd->arch.vco_out;
650 #endif /* CONFIG_CPM2 */
651 #if defined(CONFIG_MPC512X)
652 bd->bi_ipsfreq = gd->arch.ips_clk;
653 #endif /* CONFIG_MPC512X */
654 #if defined(CONFIG_MPC5xxx)
655 bd->bi_ipbfreq = gd->arch.ipb_clk;
656 bd->bi_pcifreq = gd->pci_clk;
657 #endif /* CONFIG_MPC5xxx */
658 #if defined(CONFIG_M68K) && defined(CONFIG_PCI)
659 bd->bi_pcifreq = gd->pci_clk;
661 #if defined(CONFIG_EXTRA_CLOCK)
662 bd->bi_inpfreq = gd->arch.inp_clk; /* input Freq in Hz */
663 bd->bi_vcofreq = gd->arch.vco_clk; /* vco Freq in Hz */
664 bd->bi_flbfreq = gd->arch.flb_clk; /* flexbus Freq in Hz */
671 #ifdef CONFIG_SYS_EXTBDINFO
672 static int setup_board_extra(void)
676 strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
677 strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
678 sizeof(bd->bi_r_version));
680 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
681 bd->bi_plb_busfreq = gd->bus_clk;
682 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
683 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
684 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
685 bd->bi_pci_busfreq = get_PCI_freq();
686 bd->bi_opbfreq = get_OPB_freq();
687 #elif defined(CONFIG_XILINX_405)
688 bd->bi_pci_busfreq = get_PCI_freq();
696 static int init_post(void)
698 post_bootmode_init();
699 post_run(NULL, POST_ROM | post_bootmode_get(0));
705 static int setup_dram_config(void)
707 /* Ram is board specific, so move it to board code ... */
708 dram_init_banksize();
713 static int reloc_fdt(void)
715 #ifndef CONFIG_OF_EMBED
716 if (gd->flags & GD_FLG_SKIP_RELOC)
719 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
720 gd->fdt_blob = gd->new_fdt;
727 static int setup_reloc(void)
729 if (gd->flags & GD_FLG_SKIP_RELOC) {
730 debug("Skipping relocation due to flag\n");
734 #ifdef CONFIG_SYS_TEXT_BASE
735 gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
738 * On all ColdFire arch cpu, monitor code starts always
739 * just after the default vector table location, so at 0x400
741 gd->reloc_off = gd->relocaddr - (CONFIG_SYS_TEXT_BASE + 0x400);
744 memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
746 debug("Relocation Offset is: %08lx\n", gd->reloc_off);
747 debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
748 gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
754 /* ARM calls relocate_code from its crt0.S */
755 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
756 !CONFIG_IS_ENABLED(X86_64)
758 static int jump_to_copy(void)
760 if (gd->flags & GD_FLG_SKIP_RELOC)
763 * x86 is special, but in a nice way. It uses a trampoline which
764 * enables the dcache if possible.
766 * For now, other archs use relocate_code(), which is implemented
767 * similarly for all archs. When we do generic relocation, hopefully
768 * we can make all archs enable the dcache prior to relocation.
770 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
772 * SDRAM and console are now initialised. The final stack can now
773 * be setup in SDRAM. Code execution will continue in Flash, but
774 * with the stack in SDRAM and Global Data in temporary memory
777 arch_setup_gd(gd->new_gd);
778 board_init_f_r_trampoline(gd->start_addr_sp);
780 relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr);
787 /* Record the board_init_f() bootstage (after arch_cpu_init()) */
788 static int mark_bootstage(void)
790 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
795 static int initf_console_record(void)
797 #if defined(CONFIG_CONSOLE_RECORD) && defined(CONFIG_SYS_MALLOC_F_LEN)
798 return console_record_init();
804 static int initf_dm(void)
806 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN)
809 ret = dm_init_and_scan(true);
813 #ifdef CONFIG_TIMER_EARLY
814 ret = dm_timer_init();
822 /* Architecture-specific memory reservation */
823 __weak int reserve_arch(void)
828 __weak int arch_cpu_init_dm(void)
833 static const init_fnc_t init_sequence_f[] = {
834 #ifdef CONFIG_SANDBOX
838 #ifdef CONFIG_OF_CONTROL
845 initf_console_record,
846 #if defined(CONFIG_X86) && defined(CONFIG_HAVE_FSP)
849 arch_cpu_init, /* basic arch cpu dependent setup */
850 mach_cpu_init, /* SoC/machine dependent CPU setup */
853 mark_bootstage, /* need timer, go after init dm */
854 #if defined(CONFIG_BOARD_EARLY_INIT_F)
857 /* TODO: can any of this go into arch_cpu_init()? */
858 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
859 get_clocks, /* get CPU and bus clocks (etc.) */
860 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
861 && !defined(CONFIG_TQM885D)
862 adjust_sdram_tbs_8xx,
864 /* TODO: can we rename this to timer_init()? */
867 #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || \
868 defined(CONFIG_BLACKFIN) || defined(CONFIG_NDS32) || \
869 defined(CONFIG_SH) || defined(CONFIG_SPARC)
870 timer_init, /* initialize timer */
872 #if defined(CONFIG_BOARD_POSTCLK_INIT)
875 #if defined(CONFIG_SYS_FSL_CLK) || defined(CONFIG_M68K)
878 env_init, /* initialize environment */
879 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
880 /* get CPU and bus clocks according to the environment variable */
882 /* adjust sdram refresh rate according to the new clock */
886 init_baud_rate, /* initialze baudrate settings */
887 serial_init, /* serial communications setup */
888 console_init_f, /* stage 1 init of console */
889 #ifdef CONFIG_SANDBOX
890 sandbox_early_getopt_check,
892 display_options, /* say that we are here */
893 display_text_info, /* show debugging info if required */
894 #if defined(CONFIG_MPC8260)
897 #endif /* CONFIG_MPC8260 */
898 #if defined(CONFIG_MPC83xx)
901 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_SH)
904 #if defined(CONFIG_DISPLAY_CPUINFO)
905 print_cpuinfo, /* display cpu info (and speed) */
907 #if defined(CONFIG_DISPLAY_BOARDINFO)
910 INIT_FUNC_WATCHDOG_INIT
911 #if defined(CONFIG_MISC_INIT_F)
914 INIT_FUNC_WATCHDOG_RESET
915 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
918 #if defined(CONFIG_HARD_SPI)
922 /* TODO: unify all these dram functions? */
923 #if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_NDS32) || \
924 defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) || \
926 dram_init, /* configure available RAM banks */
928 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
934 INIT_FUNC_WATCHDOG_RESET
935 #if defined(CONFIG_SYS_DRAM_TEST)
937 #endif /* CONFIG_SYS_DRAM_TEST */
938 INIT_FUNC_WATCHDOG_RESET
943 INIT_FUNC_WATCHDOG_RESET
945 * Now that we have DRAM mapped and working, we can
946 * relocate the code and continue running from DRAM.
948 * Reserve memory at end of RAM for (top down in that order):
949 * - area that won't get touched by U-Boot and Linux (optional)
950 * - kernel log buffer
954 * - board info struct
957 #if defined(CONFIG_BLACKFIN) || defined(CONFIG_XTENSA)
958 /* Blackfin u-boot monitor should be on top of the ram */
961 #if defined(CONFIG_SPARC)
964 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
971 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
975 #ifdef CONFIG_DM_VIDEO
981 /* TODO: Why the dependency on CONFIG_8xx? */
982 # if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
983 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
984 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
985 reserve_legacy_video,
987 #endif /* CONFIG_DM_VIDEO */
989 #if !defined(CONFIG_BLACKFIN) && !defined(CONFIG_XTENSA)
992 #ifndef CONFIG_SPL_BUILD
1003 #if defined(CONFIG_M68K) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || \
1007 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
1008 INIT_FUNC_WATCHDOG_RESET
1012 #ifdef CONFIG_SYS_EXTBDINFO
1015 INIT_FUNC_WATCHDOG_RESET
1018 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
1020 do_elf_reloc_fixups,
1023 #if defined(CONFIG_XTENSA)
1026 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
1027 !CONFIG_IS_ENABLED(X86_64)
1033 void board_init_f(ulong boot_flags)
1035 #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA
1037 * For some architectures, global data is initialized and used before
1038 * calling this function. The data should be preserved. For others,
1039 * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack
1040 * here to host global data until relocation.
1047 * Clear global data before it is accessed at debug print
1048 * in initcall_run_list. Otherwise the debug print probably
1049 * get the wrong value of gd->have_console.
1054 gd->flags = boot_flags;
1055 gd->have_console = 0;
1057 if (initcall_run_list(init_sequence_f))
1060 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
1061 !defined(CONFIG_EFI_APP) && !CONFIG_IS_ENABLED(X86_64)
1062 /* NOTREACHED - jump_to_copy() does not return */
1067 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
1069 * For now this code is only used on x86.
1071 * init_sequence_f_r is the list of init functions which are run when
1072 * U-Boot is executing from Flash with a semi-limited 'C' environment.
1073 * The following limitations must be considered when implementing an
1075 * - 'static' variables are read-only
1076 * - Global Data (gd->xxx) is read/write
1078 * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
1079 * supported). It _should_, if possible, copy global data to RAM and
1080 * initialise the CPU caches (to speed up the relocation process)
1082 * NOTE: At present only x86 uses this route, but it is intended that
1083 * all archs will move to this when generic relocation is implemented.
1085 static const init_fnc_t init_sequence_f_r[] = {
1086 #if !CONFIG_IS_ENABLED(X86_64)
1093 void board_init_f_r(void)
1095 if (initcall_run_list(init_sequence_f_r))
1099 * The pre-relocation drivers may be using memory that has now gone
1100 * away. Mark serial as unavailable - this will fall back to the debug
1101 * UART if available.
1103 gd->flags &= ~GD_FLG_SERIAL_READY;
1106 * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1107 * Transfer execution from Flash to RAM by calculating the address
1108 * of the in-RAM copy of board_init_r() and calling it
1110 (board_init_r + gd->reloc_off)((gd_t *)gd, gd->relocaddr);
1112 /* NOTREACHED - board_init_r() does not return */
1115 #endif /* CONFIG_X86 */