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>
16 #include <environment.h>
20 #if defined(CONFIG_CMD_IDE)
27 /* TODO: Can we move these into arch/ headers? */
37 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
44 #include <status_led.h>
47 #include <asm/errno.h>
49 #include <asm/sections.h>
51 #include <asm/init_helpers.h>
52 #include <asm/relocate.h>
55 #include <asm/state.h>
58 #include <linux/compiler.h>
61 * Pointer to initial global data area
63 * Here we initialize it if needed.
65 #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR
66 #undef XTRN_DECLARE_GLOBAL_DATA_PTR
67 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
68 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);
70 DECLARE_GLOBAL_DATA_PTR;
74 * sjg: IMO this code should be
75 * refactored to a single function, something like:
77 * void led_set_state(enum led_colour_t colour, int on);
79 /************************************************************************
80 * Coloured LED functionality
81 ************************************************************************
82 * May be supplied by boards if desired
84 __weak void coloured_LED_init(void) {}
85 __weak void red_led_on(void) {}
86 __weak void red_led_off(void) {}
87 __weak void green_led_on(void) {}
88 __weak void green_led_off(void) {}
89 __weak void yellow_led_on(void) {}
90 __weak void yellow_led_off(void) {}
91 __weak void blue_led_on(void) {}
92 __weak void blue_led_off(void) {}
95 * Why is gd allocated a register? Prior to reloc it might be better to
96 * just pass it around to each function in this file?
98 * After reloc one could argue that it is hardly used and doesn't need
99 * to be in a register. Or if it is it should perhaps hold pointers to all
100 * global data for all modules, so that post-reloc we can avoid the massive
101 * literal pool we get on ARM. Or perhaps just encourage each module to use
106 * Could the CONFIG_SPL_BUILD infection become a flag in gd?
109 #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
110 static int init_func_watchdog_init(void)
112 # if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \
113 defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
114 defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \
115 defined(CONFIG_IMX_WATCHDOG))
118 puts(" Watchdog enabled\n");
124 int init_func_watchdog_reset(void)
130 #endif /* CONFIG_WATCHDOG */
132 __weak void board_add_ram_info(int use_default)
134 /* please define platform specific board_add_ram_info() */
137 static int init_baud_rate(void)
139 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
143 static int display_text_info(void)
145 #ifndef CONFIG_SANDBOX
146 ulong bss_start, bss_end, text_base;
148 bss_start = (ulong)&__bss_start;
149 bss_end = (ulong)&__bss_end;
151 #ifdef CONFIG_SYS_TEXT_BASE
152 text_base = CONFIG_SYS_TEXT_BASE;
154 text_base = CONFIG_SYS_MONITOR_BASE;
157 debug("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n",
158 text_base, bss_start, bss_end);
161 #ifdef CONFIG_MODEM_SUPPORT
162 debug("Modem Support enabled\n");
164 #ifdef CONFIG_USE_IRQ
165 debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
166 debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
172 static int announce_dram_init(void)
178 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC)
179 static int init_func_ram(void)
181 #ifdef CONFIG_BOARD_TYPES
182 int board_type = gd->board_type;
184 int board_type = 0; /* use dummy arg */
187 gd->ram_size = initdram(board_type);
189 if (gd->ram_size > 0)
192 puts("*** failed ***\n");
197 static int show_dram_config(void)
199 unsigned long long size;
201 #ifdef CONFIG_NR_DRAM_BANKS
204 debug("\nRAM Configuration:\n");
205 for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
206 size += gd->bd->bi_dram[i].size;
207 debug("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
209 print_size(gd->bd->bi_dram[i].size, "\n");
217 print_size(size, "");
218 board_add_ram_info(0);
224 __weak void dram_init_banksize(void)
226 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
227 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
228 gd->bd->bi_dram[0].size = get_effective_memsize();
232 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
233 static int init_func_i2c(void)
236 #ifdef CONFIG_SYS_I2C
239 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
246 #if defined(CONFIG_HARD_SPI)
247 static int init_func_spi(void)
257 static int zero_global_data(void)
259 memset((void *)gd, '\0', sizeof(gd_t));
264 static int setup_mon_len(void)
266 #if defined(__ARM__) || defined(__MICROBLAZE__)
267 gd->mon_len = (ulong)&__bss_end - (ulong)_start;
268 #elif defined(CONFIG_SANDBOX)
269 gd->mon_len = (ulong)&_end - (ulong)_init;
270 #elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
271 gd->mon_len = CONFIG_SYS_MONITOR_LEN;
273 /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
274 gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
279 __weak int arch_cpu_init(void)
284 #ifdef CONFIG_OF_HOSTFILE
286 static int read_fdt_from_file(void)
288 struct sandbox_state *state = state_get_current();
289 const char *fname = state->fdt_fname;
295 blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0);
296 if (!state->fdt_fname) {
297 err = fdt_create_empty_tree(blob, 256);
300 printf("Unable to create empty FDT: %s\n", fdt_strerror(err));
304 err = os_get_filesize(fname, &size);
306 printf("Failed to file FDT file '%s'\n", fname);
309 fd = os_open(fname, OS_O_RDONLY);
311 printf("Failed to open FDT file '%s'\n", fname);
314 if (os_read(fd, blob, size) != size) {
327 #ifdef CONFIG_SANDBOX
328 static int setup_ram_buf(void)
330 struct sandbox_state *state = state_get_current();
332 gd->arch.ram_buf = state->ram_buf;
333 gd->ram_size = state->ram_size;
339 static int setup_fdt(void)
341 #ifdef CONFIG_OF_CONTROL
342 # ifdef CONFIG_OF_EMBED
343 /* Get a pointer to the FDT */
344 gd->fdt_blob = __dtb_dt_begin;
345 # elif defined CONFIG_OF_SEPARATE
346 /* FDT is at end of image */
347 gd->fdt_blob = (ulong *)&_end;
348 # elif defined(CONFIG_OF_HOSTFILE)
349 if (read_fdt_from_file()) {
350 puts("Failed to read control FDT\n");
354 /* Allow the early environment to override the fdt address */
355 gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
356 (uintptr_t)gd->fdt_blob);
361 /* Get the top of usable RAM */
362 __weak ulong board_get_usable_ram_top(ulong total_size)
367 static int setup_dest_addr(void)
369 debug("Monitor len: %08lX\n", gd->mon_len);
371 * Ram is setup, size stored in gd !!
373 debug("Ram size: %08lX\n", (ulong)gd->ram_size);
374 #if defined(CONFIG_SYS_MEM_TOP_HIDE)
376 * Subtract specified amount of memory to hide so that it won't
377 * get "touched" at all by U-Boot. By fixing up gd->ram_size
378 * the Linux kernel should now get passed the now "corrected"
379 * memory size and won't touch it either. This should work
380 * for arch/ppc and arch/powerpc. Only Linux board ports in
381 * arch/powerpc with bootwrapper support, that recalculate the
382 * memory size from the SDRAM controller setup will have to
385 gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
387 #ifdef CONFIG_SYS_SDRAM_BASE
388 gd->ram_top = CONFIG_SYS_SDRAM_BASE;
390 gd->ram_top += get_effective_memsize();
391 gd->ram_top = board_get_usable_ram_top(gd->mon_len);
392 gd->relocaddr = gd->ram_top;
393 debug("Ram top: %08lX\n", (ulong)gd->ram_top);
394 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
396 * We need to make sure the location we intend to put secondary core
397 * boot code is reserved and not used by any part of u-boot
399 if (gd->relocaddr > determine_mp_bootpg(NULL)) {
400 gd->relocaddr = determine_mp_bootpg(NULL);
401 debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
407 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
408 static int reserve_logbuffer(void)
410 /* reserve kernel log buffer */
411 gd->relocaddr -= LOGBUFF_RESERVE;
412 debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
419 /* reserve protected RAM */
420 static int reserve_pram(void)
424 reg = getenv_ulong("pram", 10, CONFIG_PRAM);
425 gd->relocaddr -= (reg << 10); /* size is in kB */
426 debug("Reserving %ldk for protected RAM at %08lx\n", reg,
430 #endif /* CONFIG_PRAM */
432 /* Round memory pointer down to next 4 kB limit */
433 static int reserve_round_4k(void)
435 gd->relocaddr &= ~(4096 - 1);
439 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
441 static int reserve_mmu(void)
443 /* reserve TLB table */
444 gd->arch.tlb_size = PGTABLE_SIZE;
445 gd->relocaddr -= gd->arch.tlb_size;
447 /* round down to next 64 kB limit */
448 gd->relocaddr &= ~(0x10000 - 1);
450 gd->arch.tlb_addr = gd->relocaddr;
451 debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
452 gd->arch.tlb_addr + gd->arch.tlb_size);
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 */
469 #endif /* CONFIG_LCD */
471 static int reserve_trace(void)
474 gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
475 gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
476 debug("Reserving %dk for trace data at: %08lx\n",
477 CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
483 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
484 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
485 !defined(CONFIG_BLACKFIN)
486 static int reserve_video(void)
488 /* reserve memory for video display (always full pages) */
489 gd->relocaddr = video_setmem(gd->relocaddr);
490 gd->fb_base = gd->relocaddr;
496 static int reserve_uboot(void)
499 * reserve memory for U-Boot code, data & bss
500 * round down to next 4 kB limit
502 gd->relocaddr -= gd->mon_len;
503 gd->relocaddr &= ~(4096 - 1);
505 /* round down to next 64 kB limit so that IVPR stays aligned */
506 gd->relocaddr &= ~(65536 - 1);
509 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
512 gd->start_addr_sp = gd->relocaddr;
517 #ifndef CONFIG_SPL_BUILD
518 /* reserve memory for malloc() area */
519 static int reserve_malloc(void)
521 gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
522 debug("Reserving %dk for malloc() at: %08lx\n",
523 TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
527 /* (permanently) allocate a Board Info struct */
528 static int reserve_board(void)
531 gd->start_addr_sp -= sizeof(bd_t);
532 gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t));
533 memset(gd->bd, '\0', sizeof(bd_t));
534 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
535 sizeof(bd_t), gd->start_addr_sp);
541 static int setup_machine(void)
543 #ifdef CONFIG_MACH_TYPE
544 gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
549 static int reserve_global_data(void)
551 gd->start_addr_sp -= sizeof(gd_t);
552 gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
553 debug("Reserving %zu Bytes for Global Data at: %08lx\n",
554 sizeof(gd_t), gd->start_addr_sp);
558 static int reserve_fdt(void)
561 * If the device tree is sitting immediate 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);
577 int arch_reserve_stacks(void)
582 static int reserve_stacks(void)
584 /* make stack pointer 16-byte aligned */
585 gd->start_addr_sp -= 16;
586 gd->start_addr_sp &= ~0xf;
589 * let the architecture specific code tailor gd->start_addr_sp and
592 return arch_reserve_stacks();
595 static int display_new_sp(void)
597 debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
603 static int setup_board_part1(void)
608 * 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)
624 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
626 #if defined(CONFIG_MPC83xx)
627 bd->bi_immrbar = CONFIG_SYS_IMMR;
633 static int setup_board_part2(void)
637 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
638 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
639 #if defined(CONFIG_CPM2)
640 bd->bi_cpmfreq = gd->arch.cpm_clk;
641 bd->bi_brgfreq = gd->arch.brg_clk;
642 bd->bi_sccfreq = gd->arch.scc_clk;
643 bd->bi_vco = gd->arch.vco_out;
644 #endif /* CONFIG_CPM2 */
645 #if defined(CONFIG_MPC512X)
646 bd->bi_ipsfreq = gd->arch.ips_clk;
647 #endif /* CONFIG_MPC512X */
648 #if defined(CONFIG_MPC5xxx)
649 bd->bi_ipbfreq = gd->arch.ipb_clk;
650 bd->bi_pcifreq = gd->pci_clk;
651 #endif /* CONFIG_MPC5xxx */
657 #ifdef CONFIG_SYS_EXTBDINFO
658 static int setup_board_extra(void)
662 strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
663 strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
664 sizeof(bd->bi_r_version));
666 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
667 bd->bi_plb_busfreq = gd->bus_clk;
668 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
669 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
670 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
671 bd->bi_pci_busfreq = get_PCI_freq();
672 bd->bi_opbfreq = get_OPB_freq();
673 #elif defined(CONFIG_XILINX_405)
674 bd->bi_pci_busfreq = get_PCI_freq();
682 static int init_post(void)
684 post_bootmode_init();
685 post_run(NULL, POST_ROM | post_bootmode_get(0));
691 static int setup_dram_config(void)
693 /* Ram is board specific, so move it to board code ... */
694 dram_init_banksize();
699 static int reloc_fdt(void)
702 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
703 gd->fdt_blob = gd->new_fdt;
709 static int setup_reloc(void)
711 #ifdef CONFIG_SYS_TEXT_BASE
712 gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
714 memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
716 debug("Relocation Offset is: %08lx\n", gd->reloc_off);
717 debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
718 gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
724 /* ARM calls relocate_code from its crt0.S */
725 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
727 static int jump_to_copy(void)
730 * x86 is special, but in a nice way. It uses a trampoline which
731 * enables the dcache if possible.
733 * For now, other archs use relocate_code(), which is implemented
734 * similarly for all archs. When we do generic relocation, hopefully
735 * we can make all archs enable the dcache prior to relocation.
739 * SDRAM and console are now initialised. The final stack can now
740 * be setup in SDRAM. Code execution will continue in Flash, but
741 * with the stack in SDRAM and Global Data in temporary memory
744 board_init_f_r_trampoline(gd->start_addr_sp);
746 relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr);
753 /* Record the board_init_f() bootstage (after arch_cpu_init()) */
754 static int mark_bootstage(void)
756 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
761 static int initf_malloc(void)
763 #ifdef CONFIG_SYS_MALLOC_F_LEN
764 assert(gd->malloc_base); /* Set up by crt0.S */
765 gd->malloc_limit = gd->malloc_base + CONFIG_SYS_MALLOC_F_LEN;
772 static int initf_dm(void)
774 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN)
777 ret = dm_init_and_scan(true);
785 /* Architecture-specific memory reservation */
786 __weak int reserve_arch(void)
791 static init_fnc_t init_sequence_f[] = {
792 #ifdef CONFIG_SANDBOX
801 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
802 /* TODO: can this go into arch_cpu_init()? */
805 arch_cpu_init, /* basic arch cpu dependent setup */
807 #ifdef CONFIG_OF_CONTROL
811 #if defined(CONFIG_BOARD_EARLY_INIT_F)
814 /* TODO: can any of this go into arch_cpu_init()? */
815 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
816 get_clocks, /* get CPU and bus clocks (etc.) */
817 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
818 && !defined(CONFIG_TQM885D)
819 adjust_sdram_tbs_8xx,
821 /* TODO: can we rename this to timer_init()? */
824 #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || defined(CONFIG_BLACKFIN)
825 timer_init, /* initialize timer */
827 #ifdef CONFIG_SYS_ALLOC_DPRAM
828 #if !defined(CONFIG_CPM2)
832 #if defined(CONFIG_BOARD_POSTCLK_INIT)
835 #ifdef CONFIG_FSL_ESDHC
838 env_init, /* initialize environment */
839 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
840 /* get CPU and bus clocks according to the environment variable */
842 /* adjust sdram refresh rate according to the new clock */
846 init_baud_rate, /* initialze baudrate settings */
847 serial_init, /* serial communications setup */
848 console_init_f, /* stage 1 init of console */
849 #ifdef CONFIG_SANDBOX
850 sandbox_early_getopt_check,
852 #ifdef CONFIG_OF_CONTROL
855 display_options, /* say that we are here */
856 display_text_info, /* show debugging info if required */
857 #if defined(CONFIG_MPC8260)
860 #endif /* CONFIG_MPC8260 */
861 #if defined(CONFIG_MPC83xx)
867 print_cpuinfo, /* display cpu info (and speed) */
868 #if defined(CONFIG_MPC5xxx)
870 #endif /* CONFIG_MPC5xxx */
871 #if defined(CONFIG_DISPLAY_BOARDINFO)
874 INIT_FUNC_WATCHDOG_INIT
875 #if defined(CONFIG_MISC_INIT_F)
878 INIT_FUNC_WATCHDOG_RESET
879 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
882 #if defined(CONFIG_HARD_SPI)
886 /* TODO: unify all these dram functions? */
887 #if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32)
888 dram_init, /* configure available RAM banks */
890 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC)
896 INIT_FUNC_WATCHDOG_RESET
897 #if defined(CONFIG_SYS_DRAM_TEST)
899 #endif /* CONFIG_SYS_DRAM_TEST */
900 INIT_FUNC_WATCHDOG_RESET
905 INIT_FUNC_WATCHDOG_RESET
907 * Now that we have DRAM mapped and working, we can
908 * relocate the code and continue running from DRAM.
910 * Reserve memory at end of RAM for (top down in that order):
911 * - area that won't get touched by U-Boot and Linux (optional)
912 * - kernel log buffer
916 * - board info struct
919 #if defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
920 /* Blackfin u-boot monitor should be on top of the ram */
923 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
930 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
938 /* TODO: Why the dependency on CONFIG_8xx? */
939 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
940 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
941 !defined(CONFIG_BLACKFIN)
944 #if !defined(CONFIG_BLACKFIN) && !defined(CONFIG_NIOS2)
947 #ifndef CONFIG_SPL_BUILD
960 INIT_FUNC_WATCHDOG_RESET
964 #ifdef CONFIG_SYS_EXTBDINFO
967 INIT_FUNC_WATCHDOG_RESET
975 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
981 void board_init_f(ulong boot_flags)
983 #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA
985 * For some archtectures, global data is initialized and used before
986 * calling this function. The data should be preserved. For others,
987 * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack
988 * here to host global data until relocation.
995 * Clear global data before it is accessed at debug print
996 * in initcall_run_list. Otherwise the debug print probably
997 * get the wrong vaule of gd->have_console.
1002 gd->flags = boot_flags;
1003 gd->have_console = 0;
1005 if (initcall_run_list(init_sequence_f))
1008 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1009 /* NOTREACHED - jump_to_copy() does not return */
1016 * For now this code is only used on x86.
1018 * init_sequence_f_r is the list of init functions which are run when
1019 * U-Boot is executing from Flash with a semi-limited 'C' environment.
1020 * The following limitations must be considered when implementing an
1022 * - 'static' variables are read-only
1023 * - Global Data (gd->xxx) is read/write
1025 * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
1026 * supported). It _should_, if possible, copy global data to RAM and
1027 * initialise the CPU caches (to speed up the relocation process)
1029 * NOTE: At present only x86 uses this route, but it is intended that
1030 * all archs will move to this when generic relocation is implemented.
1032 static init_fnc_t init_sequence_f_r[] = {
1038 void board_init_f_r(void)
1040 if (initcall_run_list(init_sequence_f_r))
1044 * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1045 * Transfer execution from Flash to RAM by calculating the address
1046 * of the in-RAM copy of board_init_r() and calling it
1048 (board_init_r + gd->reloc_off)(gd, gd->relocaddr);
1050 /* NOTREACHED - board_init_r() does not return */
1054 ulong board_init_f_mem(ulong top)
1056 /* Leave space for the stack we are running with now */
1059 top -= sizeof(struct global_data);
1060 top = ALIGN(top, 16);
1061 gd = (struct global_data *)top;
1062 memset((void *)gd, '\0', sizeof(*gd));
1064 #ifdef CONFIG_SYS_MALLOC_F_LEN
1065 top -= CONFIG_SYS_MALLOC_F_LEN;
1066 gd->malloc_base = top;
1071 #endif /* CONFIG_X86 */