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>
19 #if defined(CONFIG_CMD_IDE)
26 /* TODO: Can we move these into arch/ headers? */
42 #include <asm/errno.h>
47 #include <asm/sections.h>
49 #include <asm/init_helpers.h>
50 #include <asm/relocate.h>
53 #include <asm/state.h>
55 #include <linux/compiler.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 * sjg: 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 inline void __coloured_LED_init(void) {}
82 void coloured_LED_init(void)
83 __attribute__((weak, alias("__coloured_LED_init")));
84 inline void __red_led_on(void) {}
85 void red_led_on(void) __attribute__((weak, alias("__red_led_on")));
86 inline void __red_led_off(void) {}
87 void red_led_off(void) __attribute__((weak, alias("__red_led_off")));
88 inline void __green_led_on(void) {}
89 void green_led_on(void) __attribute__((weak, alias("__green_led_on")));
90 inline void __green_led_off(void) {}
91 void green_led_off(void) __attribute__((weak, alias("__green_led_off")));
92 inline void __yellow_led_on(void) {}
93 void yellow_led_on(void) __attribute__((weak, alias("__yellow_led_on")));
94 inline void __yellow_led_off(void) {}
95 void yellow_led_off(void) __attribute__((weak, alias("__yellow_led_off")));
96 inline void __blue_led_on(void) {}
97 void blue_led_on(void) __attribute__((weak, alias("__blue_led_on")));
98 inline void __blue_led_off(void) {}
99 void blue_led_off(void) __attribute__((weak, alias("__blue_led_off")));
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)
117 static int init_func_watchdog_init(void)
119 puts(" Watchdog enabled\n");
125 int init_func_watchdog_reset(void)
131 #endif /* CONFIG_WATCHDOG */
133 void __board_add_ram_info(int use_default)
135 /* please define platform specific board_add_ram_info() */
138 void board_add_ram_info(int)
139 __attribute__ ((weak, alias("__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 #ifndef CONFIG_SANDBOX
150 ulong bss_start, bss_end;
152 #ifdef CONFIG_SYS_SYM_OFFSETS
153 bss_start = _bss_start_ofs + _TEXT_BASE;
154 bss_end = _bss_end_ofs + _TEXT_BASE;
156 bss_start = (ulong)&__bss_start;
157 bss_end = (ulong)&__bss_end;
159 debug("U-Boot code: %08X -> %08lX BSS: -> %08lX\n",
160 CONFIG_SYS_TEXT_BASE, bss_start, bss_end);
163 #ifdef CONFIG_MODEM_SUPPORT
164 debug("Modem Support enabled\n");
166 #ifdef CONFIG_USE_IRQ
167 debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
168 debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
174 static int announce_dram_init(void)
181 static int init_func_ram(void)
183 #ifdef CONFIG_BOARD_TYPES
184 int board_type = gd->board_type;
186 int board_type = 0; /* use dummy arg */
189 gd->ram_size = initdram(board_type);
191 if (gd->ram_size > 0)
194 puts("*** failed ***\n");
199 static int show_dram_config(void)
203 #ifdef CONFIG_NR_DRAM_BANKS
206 debug("\nRAM Configuration:\n");
207 for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
208 size += gd->bd->bi_dram[i].size;
209 debug("Bank #%d: %08lx ", i, 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 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 void dram_init_banksize(void)
235 __attribute__((weak, alias("__dram_init_banksize")));
237 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
238 static int init_func_i2c(void)
241 #ifdef CONFIG_SYS_I2C
244 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
251 #if defined(CONFIG_HARD_SPI)
252 static int init_func_spi(void)
262 static int zero_global_data(void)
264 memset((void *)gd, '\0', sizeof(gd_t));
269 static int setup_mon_len(void)
271 #ifdef CONFIG_SYS_SYM_OFFSETS
272 gd->mon_len = _bss_end_ofs;
273 #elif defined(CONFIG_SANDBOX)
274 gd->mon_len = (ulong)&_end - (ulong)_init;
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 #define CHECK(x) err = (x); if (err) goto failed;
291 /* Create an empty device tree blob */
292 static int make_empty_fdt(void *fdt)
296 CHECK(fdt_create(fdt, 256));
297 CHECK(fdt_finish_reservemap(fdt));
298 CHECK(fdt_begin_node(fdt, ""));
299 CHECK(fdt_end_node(fdt));
300 CHECK(fdt_finish(fdt));
304 printf("Unable to create empty FDT: %s\n", fdt_strerror(err));
308 static int read_fdt_from_file(void)
310 struct sandbox_state *state = state_get_current();
315 blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0);
316 if (!state->fdt_fname) {
317 err = make_empty_fdt(blob);
322 err = fs_set_blk_dev("host", NULL, FS_TYPE_SANDBOX);
325 size = fs_read(state->fdt_fname, CONFIG_SYS_FDT_LOAD_ADDR, 0, 0);
336 #ifdef CONFIG_SANDBOX
337 static int setup_ram_buf(void)
339 struct sandbox_state *state = state_get_current();
341 gd->arch.ram_buf = state->ram_buf;
342 gd->ram_size = state->ram_size;
348 static int setup_fdt(void)
350 #ifdef CONFIG_OF_EMBED
351 /* Get a pointer to the FDT */
352 gd->fdt_blob = __dtb_dt_begin;
353 #elif defined CONFIG_OF_SEPARATE
354 /* FDT is at end of image */
355 # ifdef CONFIG_SYS_SYM_OFFSETS
356 gd->fdt_blob = (void *)(_end_ofs + CONFIG_SYS_TEXT_BASE);
358 gd->fdt_blob = (ulong *)&_end;
360 #elif defined(CONFIG_OF_HOSTFILE)
361 if (read_fdt_from_file()) {
362 puts("Failed to read control FDT\n");
366 /* Allow the early environment to override the fdt address */
367 gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
368 (uintptr_t)gd->fdt_blob);
372 /* Get the top of usable RAM */
373 __weak ulong board_get_usable_ram_top(ulong total_size)
378 static int setup_dest_addr(void)
380 debug("Monitor len: %08lX\n", gd->mon_len);
382 * Ram is setup, size stored in gd !!
384 debug("Ram size: %08lX\n", (ulong)gd->ram_size);
385 #if defined(CONFIG_SYS_MEM_TOP_HIDE)
387 * Subtract specified amount of memory to hide so that it won't
388 * get "touched" at all by U-Boot. By fixing up gd->ram_size
389 * the Linux kernel should now get passed the now "corrected"
390 * memory size and won't touch it either. This should work
391 * for arch/ppc and arch/powerpc. Only Linux board ports in
392 * arch/powerpc with bootwrapper support, that recalculate the
393 * memory size from the SDRAM controller setup will have to
396 gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
398 #ifdef CONFIG_SYS_SDRAM_BASE
399 gd->ram_top = CONFIG_SYS_SDRAM_BASE;
401 gd->ram_top += get_effective_memsize();
402 gd->ram_top = board_get_usable_ram_top(gd->mon_len);
403 gd->relocaddr = gd->ram_top;
404 debug("Ram top: %08lX\n", (ulong)gd->ram_top);
405 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
407 * We need to make sure the location we intend to put secondary core
408 * boot code is reserved and not used by any part of u-boot
410 if (gd->relocaddr > determine_mp_bootpg(NULL)) {
411 gd->relocaddr = determine_mp_bootpg(NULL);
412 debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
418 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
419 static int reserve_logbuffer(void)
421 /* reserve kernel log buffer */
422 gd->relocaddr -= LOGBUFF_RESERVE;
423 debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
430 /* reserve protected RAM */
431 static int reserve_pram(void)
435 reg = getenv_ulong("pram", 10, CONFIG_PRAM);
436 gd->relocaddr -= (reg << 10); /* size is in kB */
437 debug("Reserving %ldk for protected RAM at %08lx\n", reg,
441 #endif /* CONFIG_PRAM */
443 /* Round memory pointer down to next 4 kB limit */
444 static int reserve_round_4k(void)
446 gd->relocaddr &= ~(4096 - 1);
450 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
452 static int reserve_mmu(void)
454 /* reserve TLB table */
455 gd->arch.tlb_size = PGTABLE_SIZE;
456 gd->relocaddr -= gd->arch.tlb_size;
458 /* round down to next 64 kB limit */
459 gd->relocaddr &= ~(0x10000 - 1);
461 gd->arch.tlb_addr = gd->relocaddr;
462 debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
463 gd->arch.tlb_addr + gd->arch.tlb_size);
469 static int reserve_lcd(void)
471 #ifdef CONFIG_FB_ADDR
472 gd->fb_base = CONFIG_FB_ADDR;
474 /* reserve memory for LCD display (always full pages) */
475 gd->relocaddr = lcd_setmem(gd->relocaddr);
476 gd->fb_base = gd->relocaddr;
477 #endif /* CONFIG_FB_ADDR */
480 #endif /* CONFIG_LCD */
482 static int reserve_trace(void)
485 gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
486 gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
487 debug("Reserving %dk for trace data at: %08lx\n",
488 CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
494 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \
495 && !defined(CONFIG_ARM) && !defined(CONFIG_X86)
496 static int reserve_video(void)
498 /* reserve memory for video display (always full pages) */
499 gd->relocaddr = video_setmem(gd->relocaddr);
500 gd->fb_base = gd->relocaddr;
506 static int reserve_uboot(void)
509 * reserve memory for U-Boot code, data & bss
510 * round down to next 4 kB limit
512 gd->relocaddr -= gd->mon_len;
513 gd->relocaddr &= ~(4096 - 1);
515 /* round down to next 64 kB limit so that IVPR stays aligned */
516 gd->relocaddr &= ~(65536 - 1);
519 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
522 gd->start_addr_sp = gd->relocaddr;
527 #ifndef CONFIG_SPL_BUILD
528 /* reserve memory for malloc() area */
529 static int reserve_malloc(void)
531 gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
532 debug("Reserving %dk for malloc() at: %08lx\n",
533 TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
537 /* (permanently) allocate a Board Info struct */
538 static int reserve_board(void)
540 gd->start_addr_sp -= sizeof(bd_t);
541 gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t));
542 memset(gd->bd, '\0', sizeof(bd_t));
543 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
544 sizeof(bd_t), gd->start_addr_sp);
549 static int setup_machine(void)
551 #ifdef CONFIG_MACH_TYPE
552 gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
557 static int reserve_global_data(void)
559 gd->start_addr_sp -= sizeof(gd_t);
560 gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
561 debug("Reserving %zu Bytes for Global Data at: %08lx\n",
562 sizeof(gd_t), gd->start_addr_sp);
566 static int reserve_fdt(void)
569 * If the device tree is sitting immediate above our image then we
570 * must relocate it. If it is embedded in the data section, then it
571 * will be relocated with other data.
574 gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
576 gd->start_addr_sp -= gd->fdt_size;
577 gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
578 debug("Reserving %lu Bytes for FDT at: %08lx\n",
579 gd->fdt_size, gd->start_addr_sp);
585 static int reserve_stacks(void)
587 #ifdef CONFIG_SPL_BUILD
589 gd->start_addr_sp -= 128; /* leave 32 words for abort-stack */
590 gd->irq_sp = gd->start_addr_sp;
597 /* setup stack pointer for exceptions */
598 gd->start_addr_sp -= 16;
599 gd->start_addr_sp &= ~0xf;
600 gd->irq_sp = gd->start_addr_sp;
603 * Handle architecture-specific things here
604 * TODO(sjg@chromium.org): Perhaps create arch_reserve_stack()
605 * to handle this and put in arch/xxx/lib/stack.c
607 # if defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
608 # ifdef CONFIG_USE_IRQ
609 gd->start_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
610 debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
611 CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->start_addr_sp);
613 /* 8-byte alignment for ARM ABI compliance */
614 gd->start_addr_sp &= ~0x07;
616 /* leave 3 words for abort-stack, plus 1 for alignment */
617 gd->start_addr_sp -= 16;
618 # elif defined(CONFIG_PPC)
619 /* Clear initial stack frame */
620 s = (ulong *) gd->start_addr_sp;
621 *s = 0; /* Terminate back chain */
622 *++s = 0; /* NULL return address */
623 # endif /* Architecture specific code */
629 static int display_new_sp(void)
631 debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
637 static int setup_board_part1(void)
642 * Save local variables to board info struct
645 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of memory */
646 bd->bi_memsize = gd->ram_size; /* size in bytes */
648 #ifdef CONFIG_SYS_SRAM_BASE
649 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM */
650 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM */
653 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
654 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
655 bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */
657 #if defined(CONFIG_MPC5xxx)
658 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
660 #if defined(CONFIG_MPC83xx)
661 bd->bi_immrbar = CONFIG_SYS_IMMR;
667 static int setup_board_part2(void)
671 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
672 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
673 #if defined(CONFIG_CPM2)
674 bd->bi_cpmfreq = gd->arch.cpm_clk;
675 bd->bi_brgfreq = gd->arch.brg_clk;
676 bd->bi_sccfreq = gd->arch.scc_clk;
677 bd->bi_vco = gd->arch.vco_out;
678 #endif /* CONFIG_CPM2 */
679 #if defined(CONFIG_MPC512X)
680 bd->bi_ipsfreq = gd->arch.ips_clk;
681 #endif /* CONFIG_MPC512X */
682 #if defined(CONFIG_MPC5xxx)
683 bd->bi_ipbfreq = gd->arch.ipb_clk;
684 bd->bi_pcifreq = gd->pci_clk;
685 #endif /* CONFIG_MPC5xxx */
691 #ifdef CONFIG_SYS_EXTBDINFO
692 static int setup_board_extra(void)
696 strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
697 strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
698 sizeof(bd->bi_r_version));
700 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
701 bd->bi_plb_busfreq = gd->bus_clk;
702 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
703 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
704 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
705 bd->bi_pci_busfreq = get_PCI_freq();
706 bd->bi_opbfreq = get_OPB_freq();
707 #elif defined(CONFIG_XILINX_405)
708 bd->bi_pci_busfreq = get_PCI_freq();
716 static int init_post(void)
718 post_bootmode_init();
719 post_run(NULL, POST_ROM | post_bootmode_get(0));
725 static int setup_baud_rate(void)
727 /* Ick, can we get rid of this line? */
728 gd->bd->bi_baudrate = gd->baudrate;
733 static int setup_dram_config(void)
735 /* Ram is board specific, so move it to board code ... */
736 dram_init_banksize();
741 static int reloc_fdt(void)
744 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
745 gd->fdt_blob = gd->new_fdt;
751 static int setup_reloc(void)
753 gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
754 memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
756 debug("Relocation Offset is: %08lx\n", gd->reloc_off);
757 debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
758 gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
764 /* ARM calls relocate_code from its crt0.S */
765 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
767 static int jump_to_copy(void)
770 * x86 is special, but in a nice way. It uses a trampoline which
771 * enables the dcache if possible.
773 * For now, other archs use relocate_code(), which is implemented
774 * similarly for all archs. When we do generic relocation, hopefully
775 * we can make all archs enable the dcache prior to relocation.
779 * SDRAM and console are now initialised. The final stack can now
780 * be setup in SDRAM. Code execution will continue in Flash, but
781 * with the stack in SDRAM and Global Data in temporary memory
784 board_init_f_r_trampoline(gd->start_addr_sp);
786 relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr);
793 /* Record the board_init_f() bootstage (after arch_cpu_init()) */
794 static int mark_bootstage(void)
796 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
801 static init_fnc_t init_sequence_f[] = {
802 #ifdef CONFIG_SANDBOX
808 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
809 /* TODO: can this go into arch_cpu_init()? */
812 arch_cpu_init, /* basic arch cpu dependent setup */
814 cpu_init_f, /* TODO(sjg@chromium.org): remove */
815 # ifdef CONFIG_OF_CONTROL
816 find_fdt, /* TODO(sjg@chromium.org): remove */
820 #ifdef CONFIG_OF_CONTROL
823 #if defined(CONFIG_BOARD_EARLY_INIT_F)
826 /* TODO: can any of this go into arch_cpu_init()? */
827 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
828 get_clocks, /* get CPU and bus clocks (etc.) */
829 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
830 && !defined(CONFIG_TQM885D)
831 adjust_sdram_tbs_8xx,
833 /* TODO: can we rename this to timer_init()? */
837 timer_init, /* initialize timer */
839 #ifdef CONFIG_SYS_ALLOC_DPRAM
840 #if !defined(CONFIG_CPM2)
844 #if defined(CONFIG_BOARD_POSTCLK_INIT)
847 #ifdef CONFIG_FSL_ESDHC
850 env_init, /* initialize environment */
851 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
852 /* get CPU and bus clocks according to the environment variable */
854 /* adjust sdram refresh rate according to the new clock */
858 init_baud_rate, /* initialze baudrate settings */
859 serial_init, /* serial communications setup */
860 console_init_f, /* stage 1 init of console */
861 #ifdef CONFIG_SANDBOX
862 sandbox_early_getopt_check,
864 #ifdef CONFIG_OF_CONTROL
867 display_options, /* say that we are here */
868 display_text_info, /* show debugging info if required */
869 #if defined(CONFIG_8260)
872 #endif /* CONFIG_8260 */
873 #if defined(CONFIG_MPC83xx)
879 print_cpuinfo, /* display cpu info (and speed) */
880 #if defined(CONFIG_MPC5xxx)
882 #endif /* CONFIG_MPC5xxx */
883 #if defined(CONFIG_DISPLAY_BOARDINFO)
884 checkboard, /* display board info */
886 INIT_FUNC_WATCHDOG_INIT
887 #if defined(CONFIG_MISC_INIT_F)
890 INIT_FUNC_WATCHDOG_RESET
891 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
894 #if defined(CONFIG_HARD_SPI)
898 dram_init_f, /* configure available RAM banks */
899 calculate_relocation_address,
902 /* TODO: unify all these dram functions? */
904 dram_init, /* configure available RAM banks */
912 INIT_FUNC_WATCHDOG_RESET
913 #if defined(CONFIG_SYS_DRAM_TEST)
915 #endif /* CONFIG_SYS_DRAM_TEST */
916 INIT_FUNC_WATCHDOG_RESET
921 INIT_FUNC_WATCHDOG_RESET
923 * Now that we have DRAM mapped and working, we can
924 * relocate the code and continue running from DRAM.
926 * Reserve memory at end of RAM for (top down in that order):
927 * - area that won't get touched by U-Boot and Linux (optional)
928 * - kernel log buffer
932 * - board info struct
935 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
942 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
950 /* TODO: Why the dependency on CONFIG_8xx? */
951 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \
952 && !defined(CONFIG_ARM) && !defined(CONFIG_X86)
956 #ifndef CONFIG_SPL_BUILD
968 INIT_FUNC_WATCHDOG_RESET
973 #ifdef CONFIG_SYS_EXTBDINFO
976 INIT_FUNC_WATCHDOG_RESET
979 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
985 void board_init_f(ulong boot_flags)
994 * Clear global data before it is accessed at debug print
995 * in initcall_run_list. Otherwise the debug print probably
996 * get the wrong vaule of gd->have_console.
998 #if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \
999 !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \
1000 !defined(CONFIG_MPC86xx) && !defined(CONFIG_X86)
1004 gd->flags = boot_flags;
1005 gd->have_console = 0;
1007 if (initcall_run_list(init_sequence_f))
1010 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1011 /* NOTREACHED - jump_to_copy() does not return */
1018 * For now this code is only used on x86.
1020 * init_sequence_f_r is the list of init functions which are run when
1021 * U-Boot is executing from Flash with a semi-limited 'C' environment.
1022 * The following limitations must be considered when implementing an
1024 * - 'static' variables are read-only
1025 * - Global Data (gd->xxx) is read/write
1027 * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
1028 * supported). It _should_, if possible, copy global data to RAM and
1029 * initialise the CPU caches (to speed up the relocation process)
1031 * NOTE: At present only x86 uses this route, but it is intended that
1032 * all archs will move to this when generic relocation is implemented.
1034 static init_fnc_t init_sequence_f_r[] = {
1038 do_elf_reloc_fixups,
1043 void board_init_f_r(void)
1045 if (initcall_run_list(init_sequence_f_r))
1049 * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1050 * Transfer execution from Flash to RAM by calculating the address
1051 * of the in-RAM copy of board_init_r() and calling it
1053 (board_init_r + gd->reloc_off)(gd, gd->relocaddr);
1055 /* NOTREACHED - board_init_r() does not return */
1058 #endif /* CONFIG_X86 */