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) || \
117 puts(" Watchdog enabled\n");
123 int init_func_watchdog_reset(void)
129 #endif /* CONFIG_WATCHDOG */
131 void __board_add_ram_info(int use_default)
133 /* please define platform specific board_add_ram_info() */
136 void board_add_ram_info(int)
137 __attribute__ ((weak, alias("__board_add_ram_info")));
139 static int init_baud_rate(void)
141 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
145 static int display_text_info(void)
147 #ifndef CONFIG_SANDBOX
148 ulong bss_start, bss_end;
150 bss_start = (ulong)&__bss_start;
151 bss_end = (ulong)&__bss_end;
153 debug("U-Boot code: %08X -> %08lX BSS: -> %08lX\n",
154 #ifdef CONFIG_SYS_TEXT_BASE
155 CONFIG_SYS_TEXT_BASE, bss_start, bss_end);
157 CONFIG_SYS_MONITOR_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 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 void dram_init_banksize(void)
233 __attribute__((weak, alias("__dram_init_banksize")));
235 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
236 static int init_func_i2c(void)
239 #ifdef CONFIG_SYS_I2C
242 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
249 #if defined(CONFIG_HARD_SPI)
250 static int init_func_spi(void)
260 static int zero_global_data(void)
262 memset((void *)gd, '\0', sizeof(gd_t));
267 static int setup_mon_len(void)
270 gd->mon_len = (ulong)&__bss_end - (ulong)_start;
271 #elif defined(CONFIG_SANDBOX)
272 gd->mon_len = (ulong)&_end - (ulong)_init;
273 #elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
274 gd->mon_len = CONFIG_SYS_MONITOR_LEN;
276 /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
277 gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
282 __weak int arch_cpu_init(void)
287 #ifdef CONFIG_OF_HOSTFILE
289 static int read_fdt_from_file(void)
291 struct sandbox_state *state = state_get_current();
292 const char *fname = state->fdt_fname;
298 blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0);
299 if (!state->fdt_fname) {
300 err = fdt_create_empty_tree(blob, 256);
303 printf("Unable to create empty FDT: %s\n", fdt_strerror(err));
307 size = os_get_filesize(fname);
309 printf("Failed to file FDT file '%s'\n", fname);
312 fd = os_open(fname, OS_O_RDONLY);
314 printf("Failed to open FDT file '%s'\n", fname);
317 if (os_read(fd, blob, size) != size) {
330 #ifdef CONFIG_SANDBOX
331 static int setup_ram_buf(void)
333 struct sandbox_state *state = state_get_current();
335 gd->arch.ram_buf = state->ram_buf;
336 gd->ram_size = state->ram_size;
342 static int setup_fdt(void)
344 #ifdef CONFIG_OF_CONTROL
345 # ifdef CONFIG_OF_EMBED
346 /* Get a pointer to the FDT */
347 gd->fdt_blob = __dtb_dt_begin;
348 # elif defined CONFIG_OF_SEPARATE
349 /* FDT is at end of image */
350 gd->fdt_blob = (ulong *)&_end;
351 # elif defined(CONFIG_OF_HOSTFILE)
352 if (read_fdt_from_file()) {
353 puts("Failed to read control FDT\n");
357 /* Allow the early environment to override the fdt address */
358 gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
359 (uintptr_t)gd->fdt_blob);
364 /* Get the top of usable RAM */
365 __weak ulong board_get_usable_ram_top(ulong total_size)
370 static int setup_dest_addr(void)
372 debug("Monitor len: %08lX\n", gd->mon_len);
374 * Ram is setup, size stored in gd !!
376 debug("Ram size: %08lX\n", (ulong)gd->ram_size);
377 #if defined(CONFIG_SYS_MEM_TOP_HIDE)
379 * Subtract specified amount of memory to hide so that it won't
380 * get "touched" at all by U-Boot. By fixing up gd->ram_size
381 * the Linux kernel should now get passed the now "corrected"
382 * memory size and won't touch it either. This should work
383 * for arch/ppc and arch/powerpc. Only Linux board ports in
384 * arch/powerpc with bootwrapper support, that recalculate the
385 * memory size from the SDRAM controller setup will have to
388 gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
390 #ifdef CONFIG_SYS_SDRAM_BASE
391 gd->ram_top = CONFIG_SYS_SDRAM_BASE;
393 gd->ram_top += get_effective_memsize();
394 gd->ram_top = board_get_usable_ram_top(gd->mon_len);
395 gd->relocaddr = gd->ram_top;
396 debug("Ram top: %08lX\n", (ulong)gd->ram_top);
397 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
399 * We need to make sure the location we intend to put secondary core
400 * boot code is reserved and not used by any part of u-boot
402 if (gd->relocaddr > determine_mp_bootpg(NULL)) {
403 gd->relocaddr = determine_mp_bootpg(NULL);
404 debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
410 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
411 static int reserve_logbuffer(void)
413 /* reserve kernel log buffer */
414 gd->relocaddr -= LOGBUFF_RESERVE;
415 debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
422 /* reserve protected RAM */
423 static int reserve_pram(void)
427 reg = getenv_ulong("pram", 10, CONFIG_PRAM);
428 gd->relocaddr -= (reg << 10); /* size is in kB */
429 debug("Reserving %ldk for protected RAM at %08lx\n", reg,
433 #endif /* CONFIG_PRAM */
435 /* Round memory pointer down to next 4 kB limit */
436 static int reserve_round_4k(void)
438 gd->relocaddr &= ~(4096 - 1);
442 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
444 static int reserve_mmu(void)
446 /* reserve TLB table */
447 gd->arch.tlb_size = PGTABLE_SIZE;
448 gd->relocaddr -= gd->arch.tlb_size;
450 /* round down to next 64 kB limit */
451 gd->relocaddr &= ~(0x10000 - 1);
453 gd->arch.tlb_addr = gd->relocaddr;
454 debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
455 gd->arch.tlb_addr + gd->arch.tlb_size);
461 static int reserve_lcd(void)
463 #ifdef CONFIG_FB_ADDR
464 gd->fb_base = CONFIG_FB_ADDR;
466 /* reserve memory for LCD display (always full pages) */
467 gd->relocaddr = lcd_setmem(gd->relocaddr);
468 gd->fb_base = gd->relocaddr;
469 #endif /* CONFIG_FB_ADDR */
472 #endif /* CONFIG_LCD */
474 static int reserve_trace(void)
477 gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
478 gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
479 debug("Reserving %dk for trace data at: %08lx\n",
480 CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
486 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
487 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
488 !defined(CONFIG_BLACKFIN)
489 static int reserve_video(void)
491 /* reserve memory for video display (always full pages) */
492 gd->relocaddr = video_setmem(gd->relocaddr);
493 gd->fb_base = gd->relocaddr;
499 static int reserve_uboot(void)
502 * reserve memory for U-Boot code, data & bss
503 * round down to next 4 kB limit
505 gd->relocaddr -= gd->mon_len;
506 gd->relocaddr &= ~(4096 - 1);
508 /* round down to next 64 kB limit so that IVPR stays aligned */
509 gd->relocaddr &= ~(65536 - 1);
512 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
515 gd->start_addr_sp = gd->relocaddr;
520 #ifndef CONFIG_SPL_BUILD
521 /* reserve memory for malloc() area */
522 static int reserve_malloc(void)
524 gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
525 debug("Reserving %dk for malloc() at: %08lx\n",
526 TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
530 /* (permanently) allocate a Board Info struct */
531 static int reserve_board(void)
534 gd->start_addr_sp -= sizeof(bd_t);
535 gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t));
536 memset(gd->bd, '\0', sizeof(bd_t));
537 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
538 sizeof(bd_t), gd->start_addr_sp);
544 static int setup_machine(void)
546 #ifdef CONFIG_MACH_TYPE
547 gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
552 static int reserve_global_data(void)
554 gd->start_addr_sp -= sizeof(gd_t);
555 gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
556 debug("Reserving %zu Bytes for Global Data at: %08lx\n",
557 sizeof(gd_t), gd->start_addr_sp);
561 static int reserve_fdt(void)
564 * If the device tree is sitting immediate 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);
580 static int reserve_stacks(void)
582 #ifdef CONFIG_SPL_BUILD
584 gd->start_addr_sp -= 128; /* leave 32 words for abort-stack */
585 gd->irq_sp = gd->start_addr_sp;
592 /* setup stack pointer for exceptions */
593 gd->start_addr_sp -= 16;
594 gd->start_addr_sp &= ~0xf;
595 gd->irq_sp = gd->start_addr_sp;
598 * Handle architecture-specific things here
599 * TODO(sjg@chromium.org): Perhaps create arch_reserve_stack()
600 * to handle this and put in arch/xxx/lib/stack.c
602 # if defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
603 # ifdef CONFIG_USE_IRQ
604 gd->start_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
605 debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
606 CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->start_addr_sp);
608 /* 8-byte alignment for ARM ABI compliance */
609 gd->start_addr_sp &= ~0x07;
611 /* leave 3 words for abort-stack, plus 1 for alignment */
612 gd->start_addr_sp -= 16;
613 # elif defined(CONFIG_PPC)
614 /* Clear initial stack frame */
615 s = (ulong *) gd->start_addr_sp;
616 *s = 0; /* Terminate back chain */
617 *++s = 0; /* NULL return address */
618 # endif /* Architecture specific code */
624 static int display_new_sp(void)
626 debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
632 static int setup_board_part1(void)
637 * Save local variables to board info struct
640 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of memory */
641 bd->bi_memsize = gd->ram_size; /* size in bytes */
643 #ifdef CONFIG_SYS_SRAM_BASE
644 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM */
645 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM */
648 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \
649 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
650 bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */
652 #if defined(CONFIG_MPC5xxx)
653 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
655 #if defined(CONFIG_MPC83xx)
656 bd->bi_immrbar = CONFIG_SYS_IMMR;
662 static int setup_board_part2(void)
666 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
667 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
668 #if defined(CONFIG_CPM2)
669 bd->bi_cpmfreq = gd->arch.cpm_clk;
670 bd->bi_brgfreq = gd->arch.brg_clk;
671 bd->bi_sccfreq = gd->arch.scc_clk;
672 bd->bi_vco = gd->arch.vco_out;
673 #endif /* CONFIG_CPM2 */
674 #if defined(CONFIG_MPC512X)
675 bd->bi_ipsfreq = gd->arch.ips_clk;
676 #endif /* CONFIG_MPC512X */
677 #if defined(CONFIG_MPC5xxx)
678 bd->bi_ipbfreq = gd->arch.ipb_clk;
679 bd->bi_pcifreq = gd->pci_clk;
680 #endif /* CONFIG_MPC5xxx */
686 #ifdef CONFIG_SYS_EXTBDINFO
687 static int setup_board_extra(void)
691 strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
692 strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
693 sizeof(bd->bi_r_version));
695 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
696 bd->bi_plb_busfreq = gd->bus_clk;
697 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
698 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
699 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
700 bd->bi_pci_busfreq = get_PCI_freq();
701 bd->bi_opbfreq = get_OPB_freq();
702 #elif defined(CONFIG_XILINX_405)
703 bd->bi_pci_busfreq = get_PCI_freq();
711 static int init_post(void)
713 post_bootmode_init();
714 post_run(NULL, POST_ROM | post_bootmode_get(0));
720 static int setup_dram_config(void)
722 /* Ram is board specific, so move it to board code ... */
723 dram_init_banksize();
728 static int reloc_fdt(void)
731 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
732 gd->fdt_blob = gd->new_fdt;
738 static int setup_reloc(void)
740 #ifdef CONFIG_SYS_TEXT_BASE
741 gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
743 memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
745 debug("Relocation Offset is: %08lx\n", gd->reloc_off);
746 debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
747 gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
753 /* ARM calls relocate_code from its crt0.S */
754 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
756 static int jump_to_copy(void)
759 * x86 is special, but in a nice way. It uses a trampoline which
760 * enables the dcache if possible.
762 * For now, other archs use relocate_code(), which is implemented
763 * similarly for all archs. When we do generic relocation, hopefully
764 * we can make all archs enable the dcache prior to relocation.
768 * SDRAM and console are now initialised. The final stack can now
769 * be setup in SDRAM. Code execution will continue in Flash, but
770 * with the stack in SDRAM and Global Data in temporary memory
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_malloc(void)
792 #ifdef CONFIG_SYS_MALLOC_F_LEN
793 assert(gd->malloc_base); /* Set up by crt0.S */
794 gd->malloc_limit = gd->malloc_base + CONFIG_SYS_MALLOC_F_LEN;
801 static int initf_dm(void)
803 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN)
806 ret = dm_init_and_scan(true);
814 static init_fnc_t init_sequence_f[] = {
815 #ifdef CONFIG_SANDBOX
821 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
822 /* TODO: can this go into arch_cpu_init()? */
825 arch_cpu_init, /* basic arch cpu dependent setup */
827 cpu_init_f, /* TODO(sjg@chromium.org): remove */
828 # ifdef CONFIG_OF_CONTROL
829 find_fdt, /* TODO(sjg@chromium.org): remove */
833 #ifdef CONFIG_OF_CONTROL
838 #if defined(CONFIG_BOARD_EARLY_INIT_F)
841 /* TODO: can any of this go into arch_cpu_init()? */
842 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
843 get_clocks, /* get CPU and bus clocks (etc.) */
844 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
845 && !defined(CONFIG_TQM885D)
846 adjust_sdram_tbs_8xx,
848 /* TODO: can we rename this to timer_init()? */
851 #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || defined(CONFIG_BLACKFIN)
852 timer_init, /* initialize timer */
854 #ifdef CONFIG_SYS_ALLOC_DPRAM
855 #if !defined(CONFIG_CPM2)
859 #if defined(CONFIG_BOARD_POSTCLK_INIT)
862 #ifdef CONFIG_FSL_ESDHC
865 env_init, /* initialize environment */
866 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
867 /* get CPU and bus clocks according to the environment variable */
869 /* adjust sdram refresh rate according to the new clock */
873 init_baud_rate, /* initialze baudrate settings */
874 serial_init, /* serial communications setup */
875 console_init_f, /* stage 1 init of console */
876 #ifdef CONFIG_SANDBOX
877 sandbox_early_getopt_check,
879 #ifdef CONFIG_OF_CONTROL
882 display_options, /* say that we are here */
883 display_text_info, /* show debugging info if required */
884 #if defined(CONFIG_MPC8260)
887 #endif /* CONFIG_MPC8260 */
888 #if defined(CONFIG_MPC83xx)
894 print_cpuinfo, /* display cpu info (and speed) */
895 #if defined(CONFIG_MPC5xxx)
897 #endif /* CONFIG_MPC5xxx */
898 #if defined(CONFIG_DISPLAY_BOARDINFO)
899 checkboard, /* display board info */
901 INIT_FUNC_WATCHDOG_INIT
902 #if defined(CONFIG_MISC_INIT_F)
905 INIT_FUNC_WATCHDOG_RESET
906 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
909 #if defined(CONFIG_HARD_SPI)
913 dram_init_f, /* configure available RAM banks */
914 calculate_relocation_address,
917 /* TODO: unify all these dram functions? */
919 dram_init, /* configure available RAM banks */
921 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC)
927 INIT_FUNC_WATCHDOG_RESET
928 #if defined(CONFIG_SYS_DRAM_TEST)
930 #endif /* CONFIG_SYS_DRAM_TEST */
931 INIT_FUNC_WATCHDOG_RESET
936 INIT_FUNC_WATCHDOG_RESET
938 * Now that we have DRAM mapped and working, we can
939 * relocate the code and continue running from DRAM.
941 * Reserve memory at end of RAM for (top down in that order):
942 * - area that won't get touched by U-Boot and Linux (optional)
943 * - kernel log buffer
947 * - board info struct
950 #if defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
951 /* Blackfin u-boot monitor should be on top of the ram */
954 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
961 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
969 /* TODO: Why the dependency on CONFIG_8xx? */
970 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
971 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
972 !defined(CONFIG_BLACKFIN)
975 #if !defined(CONFIG_BLACKFIN) && !defined(CONFIG_NIOS2)
978 #ifndef CONFIG_SPL_BUILD
990 INIT_FUNC_WATCHDOG_RESET
994 #ifdef CONFIG_SYS_EXTBDINFO
997 INIT_FUNC_WATCHDOG_RESET
1000 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1006 void board_init_f(ulong boot_flags)
1008 #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA
1010 * For some archtectures, global data is initialized and used before
1011 * calling this function. The data should be preserved. For others,
1012 * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack
1013 * here to host global data until relocation.
1020 * Clear global data before it is accessed at debug print
1021 * in initcall_run_list. Otherwise the debug print probably
1022 * get the wrong vaule of gd->have_console.
1027 gd->flags = boot_flags;
1028 gd->have_console = 0;
1030 if (initcall_run_list(init_sequence_f))
1033 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1034 /* NOTREACHED - jump_to_copy() does not return */
1041 * For now this code is only used on x86.
1043 * init_sequence_f_r is the list of init functions which are run when
1044 * U-Boot is executing from Flash with a semi-limited 'C' environment.
1045 * The following limitations must be considered when implementing an
1047 * - 'static' variables are read-only
1048 * - Global Data (gd->xxx) is read/write
1050 * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
1051 * supported). It _should_, if possible, copy global data to RAM and
1052 * initialise the CPU caches (to speed up the relocation process)
1054 * NOTE: At present only x86 uses this route, but it is intended that
1055 * all archs will move to this when generic relocation is implemented.
1057 static init_fnc_t init_sequence_f_r[] = {
1061 do_elf_reloc_fixups,
1066 void board_init_f_r(void)
1068 if (initcall_run_list(init_sequence_f_r))
1072 * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1073 * Transfer execution from Flash to RAM by calculating the address
1074 * of the in-RAM copy of board_init_r() and calling it
1076 (board_init_r + gd->reloc_off)(gd, gd->relocaddr);
1078 /* NOTREACHED - board_init_r() does not return */
1081 #endif /* CONFIG_X86 */