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 #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>
51 #include <asm/errno.h>
53 #include <asm/sections.h>
54 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
55 #include <asm/init_helpers.h>
56 #include <asm/relocate.h>
59 #include <asm/state.h>
62 #include <linux/compiler.h>
65 * Pointer to initial global data area
67 * Here we initialize it if needed.
69 #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR
70 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
71 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
72 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);
74 DECLARE_GLOBAL_DATA_PTR;
78 * TODO(sjg@chromium.org): IMO this code should be
79 * refactored to a single function, something like:
81 * void led_set_state(enum led_colour_t colour, int on);
83 /************************************************************************
84 * Coloured LED functionality
85 ************************************************************************
86 * May be supplied by boards if desired
88 __weak void coloured_LED_init(void) {}
89 __weak void red_led_on(void) {}
90 __weak void red_led_off(void) {}
91 __weak void green_led_on(void) {}
92 __weak void green_led_off(void) {}
93 __weak void yellow_led_on(void) {}
94 __weak void yellow_led_off(void) {}
95 __weak void blue_led_on(void) {}
96 __weak void blue_led_off(void) {}
99 * Why is gd allocated a register? Prior to reloc it might be better to
100 * just pass it around to each function in this file?
102 * After reloc one could argue that it is hardly used and doesn't need
103 * to be in a register. Or if it is it should perhaps hold pointers to all
104 * global data for all modules, so that post-reloc we can avoid the massive
105 * literal pool we get on ARM. Or perhaps just encourage each module to use
110 * Could the CONFIG_SPL_BUILD infection become a flag in gd?
113 #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
114 static int init_func_watchdog_init(void)
116 # if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \
117 defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
118 defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \
119 defined(CONFIG_IMX_WATCHDOG))
122 puts(" Watchdog enabled\n");
128 int init_func_watchdog_reset(void)
134 #endif /* CONFIG_WATCHDOG */
136 __weak void board_add_ram_info(int use_default)
138 /* please define platform specific board_add_ram_info() */
141 static int init_baud_rate(void)
143 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
147 static int display_text_info(void)
149 #if !defined(CONFIG_SANDBOX) && !defined(CONFIG_EFI_APP)
150 ulong bss_start, bss_end, text_base;
152 bss_start = (ulong)&__bss_start;
153 bss_end = (ulong)&__bss_end;
155 #ifdef CONFIG_SYS_TEXT_BASE
156 text_base = CONFIG_SYS_TEXT_BASE;
158 text_base = CONFIG_SYS_MONITOR_BASE;
161 debug("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n",
162 text_base, bss_start, bss_end);
165 #ifdef CONFIG_USE_IRQ
166 debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
167 debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
173 static int announce_dram_init(void)
179 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
180 static int init_func_ram(void)
182 #ifdef CONFIG_BOARD_TYPES
183 int board_type = gd->board_type;
185 int board_type = 0; /* use dummy arg */
188 gd->ram_size = initdram(board_type);
190 if (gd->ram_size > 0)
193 puts("*** failed ***\n");
198 static int show_dram_config(void)
200 unsigned long long size;
202 #ifdef CONFIG_NR_DRAM_BANKS
205 debug("\nRAM Configuration:\n");
206 for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
207 size += gd->bd->bi_dram[i].size;
208 debug("Bank #%d: %llx ", i,
209 (unsigned long long)(gd->bd->bi_dram[i].start));
211 print_size(gd->bd->bi_dram[i].size, "\n");
219 print_size(size, "");
220 board_add_ram_info(0);
226 __weak void dram_init_banksize(void)
228 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
229 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
230 gd->bd->bi_dram[0].size = get_effective_memsize();
234 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
235 static int init_func_i2c(void)
238 #ifdef CONFIG_SYS_I2C
241 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
248 #if defined(CONFIG_HARD_SPI)
249 static int init_func_spi(void)
259 static int zero_global_data(void)
261 memset((void *)gd, '\0', sizeof(gd_t));
266 static int setup_mon_len(void)
268 #if defined(__ARM__) || defined(__MICROBLAZE__)
269 gd->mon_len = (ulong)&__bss_end - (ulong)_start;
270 #elif defined(CONFIG_SANDBOX) || defined(CONFIG_EFI_APP)
271 gd->mon_len = (ulong)&_end - (ulong)_init;
272 #elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
273 gd->mon_len = CONFIG_SYS_MONITOR_LEN;
274 #elif defined(CONFIG_NDS32)
275 gd->mon_len = (ulong)(&__bss_end) - (ulong)(&_start);
277 /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
278 gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
283 __weak int arch_cpu_init(void)
288 #ifdef CONFIG_SANDBOX
289 static int setup_ram_buf(void)
291 struct sandbox_state *state = state_get_current();
293 gd->arch.ram_buf = state->ram_buf;
294 gd->ram_size = state->ram_size;
300 /* Get the top of usable RAM */
301 __weak ulong board_get_usable_ram_top(ulong total_size)
303 #ifdef CONFIG_SYS_SDRAM_BASE
305 * Detect whether we have so much RAM that it goes past the end of our
306 * 32-bit address space. If so, clip the usable RAM so it doesn't.
308 if (gd->ram_top < CONFIG_SYS_SDRAM_BASE)
310 * Will wrap back to top of 32-bit space when reservations
318 __weak phys_size_t board_reserve_ram_top(phys_size_t ram_size)
320 #ifdef CONFIG_SYS_MEM_TOP_HIDE
321 return ram_size - CONFIG_SYS_MEM_TOP_HIDE;
327 static int setup_dest_addr(void)
329 debug("Monitor len: %08lX\n", gd->mon_len);
331 * Ram is setup, size stored in gd !!
333 debug("Ram size: %08lX\n", (ulong)gd->ram_size);
334 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
335 /* Reserve memory for secure MMU tables, and/or security monitor */
336 gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
338 * Record secure memory location. Need recalcuate if memory splits
339 * into banks, or the ram base is not zero.
341 gd->secure_ram = gd->ram_size;
344 * Subtract specified amount of memory to hide so that it won't
345 * get "touched" at all by U-Boot. By fixing up gd->ram_size
346 * the Linux kernel should now get passed the now "corrected"
347 * memory size and won't touch it either. This has been used
348 * by arch/powerpc exclusively. Now ARMv8 takes advantage of
349 * thie mechanism. If memory is split into banks, addresses
350 * need to be calculated.
352 gd->ram_size = board_reserve_ram_top(gd->ram_size);
354 #ifdef CONFIG_SYS_SDRAM_BASE
355 gd->ram_top = CONFIG_SYS_SDRAM_BASE;
357 gd->ram_top += get_effective_memsize();
358 gd->ram_top = board_get_usable_ram_top(gd->mon_len);
359 gd->relocaddr = gd->ram_top;
360 debug("Ram top: %08lX\n", (ulong)gd->ram_top);
361 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
363 * We need to make sure the location we intend to put secondary core
364 * boot code is reserved and not used by any part of u-boot
366 if (gd->relocaddr > determine_mp_bootpg(NULL)) {
367 gd->relocaddr = determine_mp_bootpg(NULL);
368 debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
374 #if defined(CONFIG_SPARC)
375 static int reserve_prom(void)
377 /* defined in arch/sparc/cpu/leon?/prom.c */
378 extern void *__prom_start_reloc;
379 int size = 8192; /* page table = 2k, prom = 6k */
380 gd->relocaddr -= size;
381 __prom_start_reloc = map_sysmem(gd->relocaddr + 2048, size - 2048);
382 debug("Reserving %dk for PROM and page table at %08lx\n", size,
388 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
389 static int reserve_logbuffer(void)
391 /* reserve kernel log buffer */
392 gd->relocaddr -= LOGBUFF_RESERVE;
393 debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
400 /* reserve protected RAM */
401 static int reserve_pram(void)
405 reg = getenv_ulong("pram", 10, CONFIG_PRAM);
406 gd->relocaddr -= (reg << 10); /* size is in kB */
407 debug("Reserving %ldk for protected RAM at %08lx\n", reg,
411 #endif /* CONFIG_PRAM */
413 /* Round memory pointer down to next 4 kB limit */
414 static int reserve_round_4k(void)
416 gd->relocaddr &= ~(4096 - 1);
420 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
422 static int reserve_mmu(void)
424 /* reserve TLB table */
425 gd->arch.tlb_size = PGTABLE_SIZE;
426 gd->relocaddr -= gd->arch.tlb_size;
428 /* round down to next 64 kB limit */
429 gd->relocaddr &= ~(0x10000 - 1);
431 gd->arch.tlb_addr = gd->relocaddr;
432 debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
433 gd->arch.tlb_addr + gd->arch.tlb_size);
438 #ifdef CONFIG_DM_VIDEO
439 static int reserve_video(void)
444 addr = gd->relocaddr;
445 ret = video_reserve(&addr);
448 gd->relocaddr = addr;
455 static int reserve_lcd(void)
457 # ifdef CONFIG_FB_ADDR
458 gd->fb_base = CONFIG_FB_ADDR;
460 /* reserve memory for LCD display (always full pages) */
461 gd->relocaddr = lcd_setmem(gd->relocaddr);
462 gd->fb_base = gd->relocaddr;
463 # endif /* CONFIG_FB_ADDR */
467 # endif /* CONFIG_LCD */
469 # if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
470 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
471 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
472 static int reserve_legacy_video(void)
474 /* reserve memory for video display (always full pages) */
475 gd->relocaddr = video_setmem(gd->relocaddr);
476 gd->fb_base = gd->relocaddr;
481 #endif /* !CONFIG_DM_VIDEO */
483 static int reserve_trace(void)
486 gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
487 gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
488 debug("Reserving %dk for trace data at: %08lx\n",
489 CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
495 static int reserve_uboot(void)
498 * reserve memory for U-Boot code, data & bss
499 * round down to next 4 kB limit
501 gd->relocaddr -= gd->mon_len;
502 gd->relocaddr &= ~(4096 - 1);
504 /* round down to next 64 kB limit so that IVPR stays aligned */
505 gd->relocaddr &= ~(65536 - 1);
508 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
511 gd->start_addr_sp = gd->relocaddr;
516 #ifndef CONFIG_SPL_BUILD
517 /* reserve memory for malloc() area */
518 static int reserve_malloc(void)
520 gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
521 debug("Reserving %dk for malloc() at: %08lx\n",
522 TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
526 /* (permanently) allocate a Board Info struct */
527 static int reserve_board(void)
530 gd->start_addr_sp -= sizeof(bd_t);
531 gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t));
532 memset(gd->bd, '\0', sizeof(bd_t));
533 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
534 sizeof(bd_t), gd->start_addr_sp);
540 static int setup_machine(void)
542 #ifdef CONFIG_MACH_TYPE
543 gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
548 static int reserve_global_data(void)
550 gd->start_addr_sp -= sizeof(gd_t);
551 gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
552 debug("Reserving %zu Bytes for Global Data at: %08lx\n",
553 sizeof(gd_t), gd->start_addr_sp);
557 static int reserve_fdt(void)
559 #ifndef CONFIG_OF_EMBED
561 * If the device tree is sitting immediately above our image then we
562 * must relocate it. If it is embedded in the data section, then it
563 * will be relocated with other data.
566 gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
568 gd->start_addr_sp -= gd->fdt_size;
569 gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
570 debug("Reserving %lu Bytes for FDT at: %08lx\n",
571 gd->fdt_size, gd->start_addr_sp);
578 int arch_reserve_stacks(void)
583 static int reserve_stacks(void)
585 /* make stack pointer 16-byte aligned */
586 gd->start_addr_sp -= 16;
587 gd->start_addr_sp &= ~0xf;
590 * let the architecture-specific code tailor gd->start_addr_sp and
593 return arch_reserve_stacks();
596 static int display_new_sp(void)
598 debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
603 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
604 static int setup_board_part1(void)
609 * Save local variables to board info struct
611 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of memory */
612 bd->bi_memsize = gd->ram_size; /* size in bytes */
614 #ifdef CONFIG_SYS_SRAM_BASE
615 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM */
616 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM */
619 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \
620 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
621 bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */
623 #if defined(CONFIG_MPC5xxx) || defined(CONFIG_M68K)
624 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
626 #if defined(CONFIG_MPC83xx)
627 bd->bi_immrbar = CONFIG_SYS_IMMR;
634 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
635 static int setup_board_part2(void)
639 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
640 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
641 #if defined(CONFIG_CPM2)
642 bd->bi_cpmfreq = gd->arch.cpm_clk;
643 bd->bi_brgfreq = gd->arch.brg_clk;
644 bd->bi_sccfreq = gd->arch.scc_clk;
645 bd->bi_vco = gd->arch.vco_out;
646 #endif /* CONFIG_CPM2 */
647 #if defined(CONFIG_MPC512X)
648 bd->bi_ipsfreq = gd->arch.ips_clk;
649 #endif /* CONFIG_MPC512X */
650 #if defined(CONFIG_MPC5xxx)
651 bd->bi_ipbfreq = gd->arch.ipb_clk;
652 bd->bi_pcifreq = gd->pci_clk;
653 #endif /* CONFIG_MPC5xxx */
654 #if defined(CONFIG_M68K) && defined(CONFIG_PCI)
655 bd->bi_pcifreq = gd->pci_clk;
657 #if defined(CONFIG_EXTRA_CLOCK)
658 bd->bi_inpfreq = gd->arch.inp_clk; /* input Freq in Hz */
659 bd->bi_vcofreq = gd->arch.vco_clk; /* vco Freq in Hz */
660 bd->bi_flbfreq = gd->arch.flb_clk; /* flexbus Freq in Hz */
667 #ifdef CONFIG_SYS_EXTBDINFO
668 static int setup_board_extra(void)
672 strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
673 strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
674 sizeof(bd->bi_r_version));
676 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
677 bd->bi_plb_busfreq = gd->bus_clk;
678 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
679 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
680 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
681 bd->bi_pci_busfreq = get_PCI_freq();
682 bd->bi_opbfreq = get_OPB_freq();
683 #elif defined(CONFIG_XILINX_405)
684 bd->bi_pci_busfreq = get_PCI_freq();
692 static int init_post(void)
694 post_bootmode_init();
695 post_run(NULL, POST_ROM | post_bootmode_get(0));
701 static int setup_dram_config(void)
703 /* Ram is board specific, so move it to board code ... */
704 dram_init_banksize();
709 static int reloc_fdt(void)
711 #ifndef CONFIG_OF_EMBED
712 if (gd->flags & GD_FLG_SKIP_RELOC)
715 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
716 gd->fdt_blob = gd->new_fdt;
723 static int setup_reloc(void)
725 if (gd->flags & GD_FLG_SKIP_RELOC) {
726 debug("Skipping relocation due to flag\n");
730 #ifdef CONFIG_SYS_TEXT_BASE
731 gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
734 * On all ColdFire arch cpu, monitor code starts always
735 * just after the default vector table location, so at 0x400
737 gd->reloc_off = gd->relocaddr - (CONFIG_SYS_TEXT_BASE + 0x400);
740 memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
742 debug("Relocation Offset is: %08lx\n", gd->reloc_off);
743 debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
744 gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
750 /* ARM calls relocate_code from its crt0.S */
751 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
753 static int jump_to_copy(void)
755 if (gd->flags & GD_FLG_SKIP_RELOC)
758 * x86 is special, but in a nice way. It uses a trampoline which
759 * enables the dcache if possible.
761 * For now, other archs use relocate_code(), which is implemented
762 * similarly for all archs. When we do generic relocation, hopefully
763 * we can make all archs enable the dcache prior to relocation.
765 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
767 * SDRAM and console are now initialised. The final stack can now
768 * be setup in SDRAM. Code execution will continue in Flash, but
769 * with the stack in SDRAM and Global Data in temporary memory
772 arch_setup_gd(gd->new_gd);
773 board_init_f_r_trampoline(gd->start_addr_sp);
775 relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr);
782 /* Record the board_init_f() bootstage (after arch_cpu_init()) */
783 static int mark_bootstage(void)
785 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
790 static int initf_console_record(void)
792 #if defined(CONFIG_CONSOLE_RECORD) && defined(CONFIG_SYS_MALLOC_F_LEN)
793 return console_record_init();
799 static int initf_dm(void)
801 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN)
804 ret = dm_init_and_scan(true);
812 /* Architecture-specific memory reservation */
813 __weak int reserve_arch(void)
818 __weak int arch_cpu_init_dm(void)
823 static init_fnc_t init_sequence_f[] = {
824 #ifdef CONFIG_SANDBOX
828 #ifdef CONFIG_OF_CONTROL
835 initf_console_record,
836 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
837 /* TODO: can this go into arch_cpu_init()? */
840 #if defined(CONFIG_X86) && defined(CONFIG_HAVE_FSP)
843 arch_cpu_init, /* basic arch cpu dependent setup */
846 mark_bootstage, /* need timer, go after init dm */
847 #if defined(CONFIG_BOARD_EARLY_INIT_F)
850 /* TODO: can any of this go into arch_cpu_init()? */
851 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
852 get_clocks, /* get CPU and bus clocks (etc.) */
853 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
854 && !defined(CONFIG_TQM885D)
855 adjust_sdram_tbs_8xx,
857 /* TODO: can we rename this to timer_init()? */
860 #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || \
861 defined(CONFIG_BLACKFIN) || defined(CONFIG_NDS32) || \
862 defined(CONFIG_SPARC)
863 timer_init, /* initialize timer */
865 #ifdef CONFIG_SYS_ALLOC_DPRAM
866 #if !defined(CONFIG_CPM2)
870 #if defined(CONFIG_BOARD_POSTCLK_INIT)
873 #if defined(CONFIG_SYS_FSL_CLK) || defined(CONFIG_M68K)
876 env_init, /* initialize environment */
877 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
878 /* get CPU and bus clocks according to the environment variable */
880 /* adjust sdram refresh rate according to the new clock */
884 init_baud_rate, /* initialze baudrate settings */
885 serial_init, /* serial communications setup */
886 console_init_f, /* stage 1 init of console */
887 #ifdef CONFIG_SANDBOX
888 sandbox_early_getopt_check,
890 #ifdef CONFIG_OF_CONTROL
893 display_options, /* say that we are here */
894 display_text_info, /* show debugging info if required */
895 #if defined(CONFIG_MPC8260)
898 #endif /* CONFIG_MPC8260 */
899 #if defined(CONFIG_MPC83xx)
902 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
905 print_cpuinfo, /* display cpu info (and speed) */
906 #if defined(CONFIG_MPC5xxx)
908 #endif /* CONFIG_MPC5xxx */
909 #if defined(CONFIG_DISPLAY_BOARDINFO)
912 INIT_FUNC_WATCHDOG_INIT
913 #if defined(CONFIG_MISC_INIT_F)
916 INIT_FUNC_WATCHDOG_RESET
917 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
920 #if defined(CONFIG_HARD_SPI)
924 /* TODO: unify all these dram functions? */
925 #if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_NDS32) || \
926 defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32)
927 dram_init, /* configure available RAM banks */
929 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
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
958 #if defined(CONFIG_BLACKFIN)
959 /* Blackfin u-boot monitor should be on top of the ram */
962 #if defined(CONFIG_SPARC)
965 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
972 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
976 #ifdef CONFIG_DM_VIDEO
982 /* TODO: Why the dependency on CONFIG_8xx? */
983 # if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
984 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
985 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
986 reserve_legacy_video,
988 #endif /* CONFIG_DM_VIDEO */
990 #if !defined(CONFIG_BLACKFIN)
993 #ifndef CONFIG_SPL_BUILD
1004 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
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)
1021 do_elf_reloc_fixups,
1023 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1029 void board_init_f(ulong boot_flags)
1031 #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA
1033 * For some archtectures, global data is initialized and used before
1034 * calling this function. The data should be preserved. For others,
1035 * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack
1036 * here to host global data until relocation.
1043 * Clear global data before it is accessed at debug print
1044 * in initcall_run_list. Otherwise the debug print probably
1045 * get the wrong vaule of gd->have_console.
1050 gd->flags = boot_flags;
1051 gd->have_console = 0;
1053 if (initcall_run_list(init_sequence_f))
1056 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
1057 !defined(CONFIG_EFI_APP)
1058 /* NOTREACHED - jump_to_copy() does not return */
1063 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
1065 * For now this code is only used on x86.
1067 * init_sequence_f_r is the list of init functions which are run when
1068 * U-Boot is executing from Flash with a semi-limited 'C' environment.
1069 * The following limitations must be considered when implementing an
1071 * - 'static' variables are read-only
1072 * - Global Data (gd->xxx) is read/write
1074 * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
1075 * supported). It _should_, if possible, copy global data to RAM and
1076 * initialise the CPU caches (to speed up the relocation process)
1078 * NOTE: At present only x86 uses this route, but it is intended that
1079 * all archs will move to this when generic relocation is implemented.
1081 static init_fnc_t init_sequence_f_r[] = {
1087 void board_init_f_r(void)
1089 if (initcall_run_list(init_sequence_f_r))
1093 * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1094 * Transfer execution from Flash to RAM by calculating the address
1095 * of the in-RAM copy of board_init_r() and calling it
1097 (board_init_r + gd->reloc_off)((gd_t *)gd, gd->relocaddr);
1099 /* NOTREACHED - board_init_r() does not return */
1102 #endif /* CONFIG_X86 */