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))
117 puts(" Watchdog enabled\n");
123 int init_func_watchdog_reset(void)
129 #endif /* CONFIG_WATCHDOG */
131 __weak
void board_add_ram_info(int use_default
)
133 /* please define platform specific board_add_ram_info() */
136 static int init_baud_rate(void)
138 gd
->baudrate
= getenv_ulong("baudrate", 10, CONFIG_BAUDRATE
);
142 static int display_text_info(void)
144 #ifndef CONFIG_SANDBOX
145 ulong bss_start
, bss_end
, text_base
;
147 bss_start
= (ulong
)&__bss_start
;
148 bss_end
= (ulong
)&__bss_end
;
150 #ifdef CONFIG_SYS_TEXT_BASE
151 text_base
= CONFIG_SYS_TEXT_BASE
;
153 text_base
= CONFIG_SYS_MONITOR_BASE
;
156 debug("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n",
157 text_base
, bss_start
, bss_end
);
160 #ifdef CONFIG_MODEM_SUPPORT
161 debug("Modem Support enabled\n");
163 #ifdef CONFIG_USE_IRQ
164 debug("IRQ Stack: %08lx\n", IRQ_STACK_START
);
165 debug("FIQ Stack: %08lx\n", FIQ_STACK_START
);
171 static int announce_dram_init(void)
177 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC)
178 static int init_func_ram(void)
180 #ifdef CONFIG_BOARD_TYPES
181 int board_type
= gd
->board_type
;
183 int board_type
= 0; /* use dummy arg */
186 gd
->ram_size
= initdram(board_type
);
188 if (gd
->ram_size
> 0)
191 puts("*** failed ***\n");
196 static int show_dram_config(void)
198 unsigned long long size
;
200 #ifdef CONFIG_NR_DRAM_BANKS
203 debug("\nRAM Configuration:\n");
204 for (i
= size
= 0; i
< CONFIG_NR_DRAM_BANKS
; i
++) {
205 size
+= gd
->bd
->bi_dram
[i
].size
;
206 debug("Bank #%d: %08lx ", i
, gd
->bd
->bi_dram
[i
].start
);
208 print_size(gd
->bd
->bi_dram
[i
].size
, "\n");
216 print_size(size
, "");
217 board_add_ram_info(0);
223 __weak
void dram_init_banksize(void)
225 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
226 gd
->bd
->bi_dram
[0].start
= CONFIG_SYS_SDRAM_BASE
;
227 gd
->bd
->bi_dram
[0].size
= get_effective_memsize();
231 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
232 static int init_func_i2c(void)
235 #ifdef CONFIG_SYS_I2C
238 i2c_init(CONFIG_SYS_I2C_SPEED
, CONFIG_SYS_I2C_SLAVE
);
245 #if defined(CONFIG_HARD_SPI)
246 static int init_func_spi(void)
256 static int zero_global_data(void)
258 memset((void *)gd
, '\0', sizeof(gd_t
));
263 static int setup_mon_len(void)
265 #if defined(__ARM__) || defined(__MICROBLAZE__)
266 gd
->mon_len
= (ulong
)&__bss_end
- (ulong
)_start
;
267 #elif defined(CONFIG_SANDBOX)
268 gd
->mon_len
= (ulong
)&_end
- (ulong
)_init
;
269 #elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
270 gd
->mon_len
= CONFIG_SYS_MONITOR_LEN
;
272 /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
273 gd
->mon_len
= (ulong
)&__bss_end
- CONFIG_SYS_MONITOR_BASE
;
278 __weak
int arch_cpu_init(void)
283 #ifdef CONFIG_OF_HOSTFILE
285 static int read_fdt_from_file(void)
287 struct sandbox_state
*state
= state_get_current();
288 const char *fname
= state
->fdt_fname
;
294 blob
= map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR
, 0);
295 if (!state
->fdt_fname
) {
296 err
= fdt_create_empty_tree(blob
, 256);
299 printf("Unable to create empty FDT: %s\n", fdt_strerror(err
));
303 err
= os_get_filesize(fname
, &size
);
305 printf("Failed to file FDT file '%s'\n", fname
);
308 fd
= os_open(fname
, OS_O_RDONLY
);
310 printf("Failed to open FDT file '%s'\n", fname
);
313 if (os_read(fd
, blob
, size
) != size
) {
326 #ifdef CONFIG_SANDBOX
327 static int setup_ram_buf(void)
329 struct sandbox_state
*state
= state_get_current();
331 gd
->arch
.ram_buf
= state
->ram_buf
;
332 gd
->ram_size
= state
->ram_size
;
338 static int setup_fdt(void)
340 #ifdef CONFIG_OF_CONTROL
341 # ifdef CONFIG_OF_EMBED
342 /* Get a pointer to the FDT */
343 gd
->fdt_blob
= __dtb_dt_begin
;
344 # elif defined CONFIG_OF_SEPARATE
345 /* FDT is at end of image */
346 gd
->fdt_blob
= (ulong
*)&_end
;
347 # elif defined(CONFIG_OF_HOSTFILE)
348 if (read_fdt_from_file()) {
349 puts("Failed to read control FDT\n");
353 /* Allow the early environment to override the fdt address */
354 gd
->fdt_blob
= (void *)getenv_ulong("fdtcontroladdr", 16,
355 (uintptr_t)gd
->fdt_blob
);
360 /* Get the top of usable RAM */
361 __weak ulong
board_get_usable_ram_top(ulong total_size
)
366 static int setup_dest_addr(void)
368 debug("Monitor len: %08lX\n", gd
->mon_len
);
370 * Ram is setup, size stored in gd !!
372 debug("Ram size: %08lX\n", (ulong
)gd
->ram_size
);
373 #if defined(CONFIG_SYS_MEM_TOP_HIDE)
375 * Subtract specified amount of memory to hide so that it won't
376 * get "touched" at all by U-Boot. By fixing up gd->ram_size
377 * the Linux kernel should now get passed the now "corrected"
378 * memory size and won't touch it either. This should work
379 * for arch/ppc and arch/powerpc. Only Linux board ports in
380 * arch/powerpc with bootwrapper support, that recalculate the
381 * memory size from the SDRAM controller setup will have to
384 gd
->ram_size
-= CONFIG_SYS_MEM_TOP_HIDE
;
386 #ifdef CONFIG_SYS_SDRAM_BASE
387 gd
->ram_top
= CONFIG_SYS_SDRAM_BASE
;
389 gd
->ram_top
+= get_effective_memsize();
390 gd
->ram_top
= board_get_usable_ram_top(gd
->mon_len
);
391 gd
->relocaddr
= gd
->ram_top
;
392 debug("Ram top: %08lX\n", (ulong
)gd
->ram_top
);
393 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
395 * We need to make sure the location we intend to put secondary core
396 * boot code is reserved and not used by any part of u-boot
398 if (gd
->relocaddr
> determine_mp_bootpg(NULL
)) {
399 gd
->relocaddr
= determine_mp_bootpg(NULL
);
400 debug("Reserving MP boot page to %08lx\n", gd
->relocaddr
);
406 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
407 static int reserve_logbuffer(void)
409 /* reserve kernel log buffer */
410 gd
->relocaddr
-= LOGBUFF_RESERVE
;
411 debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN
,
418 /* reserve protected RAM */
419 static int reserve_pram(void)
423 reg
= getenv_ulong("pram", 10, CONFIG_PRAM
);
424 gd
->relocaddr
-= (reg
<< 10); /* size is in kB */
425 debug("Reserving %ldk for protected RAM at %08lx\n", reg
,
429 #endif /* CONFIG_PRAM */
431 /* Round memory pointer down to next 4 kB limit */
432 static int reserve_round_4k(void)
434 gd
->relocaddr
&= ~(4096 - 1);
438 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
440 static int reserve_mmu(void)
442 /* reserve TLB table */
443 gd
->arch
.tlb_size
= PGTABLE_SIZE
;
444 gd
->relocaddr
-= gd
->arch
.tlb_size
;
446 /* round down to next 64 kB limit */
447 gd
->relocaddr
&= ~(0x10000 - 1);
449 gd
->arch
.tlb_addr
= gd
->relocaddr
;
450 debug("TLB table from %08lx to %08lx\n", gd
->arch
.tlb_addr
,
451 gd
->arch
.tlb_addr
+ gd
->arch
.tlb_size
);
457 static int reserve_lcd(void)
459 #ifdef CONFIG_FB_ADDR
460 gd
->fb_base
= CONFIG_FB_ADDR
;
462 /* reserve memory for LCD display (always full pages) */
463 gd
->relocaddr
= lcd_setmem(gd
->relocaddr
);
464 gd
->fb_base
= gd
->relocaddr
;
465 #endif /* CONFIG_FB_ADDR */
468 #endif /* CONFIG_LCD */
470 static int reserve_trace(void)
473 gd
->relocaddr
-= CONFIG_TRACE_BUFFER_SIZE
;
474 gd
->trace_buff
= map_sysmem(gd
->relocaddr
, CONFIG_TRACE_BUFFER_SIZE
);
475 debug("Reserving %dk for trace data at: %08lx\n",
476 CONFIG_TRACE_BUFFER_SIZE
>> 10, gd
->relocaddr
);
482 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
483 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
484 !defined(CONFIG_BLACKFIN)
485 static int reserve_video(void)
487 /* reserve memory for video display (always full pages) */
488 gd
->relocaddr
= video_setmem(gd
->relocaddr
);
489 gd
->fb_base
= 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)
560 * If the device tree is sitting immediate above our image then we
561 * must relocate it. If it is embedded in the data section, then it
562 * will be relocated with other data.
565 gd
->fdt_size
= ALIGN(fdt_totalsize(gd
->fdt_blob
) + 0x1000, 32);
567 gd
->start_addr_sp
-= gd
->fdt_size
;
568 gd
->new_fdt
= map_sysmem(gd
->start_addr_sp
, gd
->fdt_size
);
569 debug("Reserving %lu Bytes for FDT at: %08lx\n",
570 gd
->fdt_size
, gd
->start_addr_sp
);
576 static int reserve_stacks(void)
578 #ifdef CONFIG_SPL_BUILD
580 gd
->start_addr_sp
-= 128; /* leave 32 words for abort-stack */
581 gd
->irq_sp
= gd
->start_addr_sp
;
588 /* setup stack pointer for exceptions */
589 gd
->start_addr_sp
-= 16;
590 gd
->start_addr_sp
&= ~0xf;
591 gd
->irq_sp
= gd
->start_addr_sp
;
594 * Handle architecture-specific things here
595 * TODO(sjg@chromium.org): Perhaps create arch_reserve_stack()
596 * to handle this and put in arch/xxx/lib/stack.c
598 # if defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
599 # ifdef CONFIG_USE_IRQ
600 gd
->start_addr_sp
-= (CONFIG_STACKSIZE_IRQ
+ CONFIG_STACKSIZE_FIQ
);
601 debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
602 CONFIG_STACKSIZE_IRQ
+ CONFIG_STACKSIZE_FIQ
, gd
->start_addr_sp
);
604 /* 8-byte alignment for ARM ABI compliance */
605 gd
->start_addr_sp
&= ~0x07;
607 /* leave 3 words for abort-stack, plus 1 for alignment */
608 gd
->start_addr_sp
-= 16;
609 # elif defined(CONFIG_PPC)
610 /* Clear initial stack frame */
611 s
= (ulong
*) gd
->start_addr_sp
;
612 *s
= 0; /* Terminate back chain */
613 *++s
= 0; /* NULL return address */
614 # endif /* Architecture specific code */
620 static int display_new_sp(void)
622 debug("New Stack Pointer is: %08lx\n", gd
->start_addr_sp
);
628 static int setup_board_part1(void)
633 * Save local variables to board info struct
636 bd
->bi_memstart
= CONFIG_SYS_SDRAM_BASE
; /* start of memory */
637 bd
->bi_memsize
= gd
->ram_size
; /* size in bytes */
639 #ifdef CONFIG_SYS_SRAM_BASE
640 bd
->bi_sramstart
= CONFIG_SYS_SRAM_BASE
; /* start of SRAM */
641 bd
->bi_sramsize
= CONFIG_SYS_SRAM_SIZE
; /* size of SRAM */
644 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \
645 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
646 bd
->bi_immr_base
= CONFIG_SYS_IMMR
; /* base of IMMR register */
648 #if defined(CONFIG_MPC5xxx)
649 bd
->bi_mbar_base
= CONFIG_SYS_MBAR
; /* base of internal registers */
651 #if defined(CONFIG_MPC83xx)
652 bd
->bi_immrbar
= CONFIG_SYS_IMMR
;
658 static int setup_board_part2(void)
662 bd
->bi_intfreq
= gd
->cpu_clk
; /* Internal Freq, in Hz */
663 bd
->bi_busfreq
= gd
->bus_clk
; /* Bus Freq, in Hz */
664 #if defined(CONFIG_CPM2)
665 bd
->bi_cpmfreq
= gd
->arch
.cpm_clk
;
666 bd
->bi_brgfreq
= gd
->arch
.brg_clk
;
667 bd
->bi_sccfreq
= gd
->arch
.scc_clk
;
668 bd
->bi_vco
= gd
->arch
.vco_out
;
669 #endif /* CONFIG_CPM2 */
670 #if defined(CONFIG_MPC512X)
671 bd
->bi_ipsfreq
= gd
->arch
.ips_clk
;
672 #endif /* CONFIG_MPC512X */
673 #if defined(CONFIG_MPC5xxx)
674 bd
->bi_ipbfreq
= gd
->arch
.ipb_clk
;
675 bd
->bi_pcifreq
= gd
->pci_clk
;
676 #endif /* CONFIG_MPC5xxx */
682 #ifdef CONFIG_SYS_EXTBDINFO
683 static int setup_board_extra(void)
687 strncpy((char *) bd
->bi_s_version
, "1.2", sizeof(bd
->bi_s_version
));
688 strncpy((char *) bd
->bi_r_version
, U_BOOT_VERSION
,
689 sizeof(bd
->bi_r_version
));
691 bd
->bi_procfreq
= gd
->cpu_clk
; /* Processor Speed, In Hz */
692 bd
->bi_plb_busfreq
= gd
->bus_clk
;
693 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
694 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
695 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
696 bd
->bi_pci_busfreq
= get_PCI_freq();
697 bd
->bi_opbfreq
= get_OPB_freq();
698 #elif defined(CONFIG_XILINX_405)
699 bd
->bi_pci_busfreq
= get_PCI_freq();
707 static int init_post(void)
709 post_bootmode_init();
710 post_run(NULL
, POST_ROM
| post_bootmode_get(0));
716 static int setup_dram_config(void)
718 /* Ram is board specific, so move it to board code ... */
719 dram_init_banksize();
724 static int reloc_fdt(void)
727 memcpy(gd
->new_fdt
, gd
->fdt_blob
, gd
->fdt_size
);
728 gd
->fdt_blob
= gd
->new_fdt
;
734 static int setup_reloc(void)
736 #ifdef CONFIG_SYS_TEXT_BASE
737 gd
->reloc_off
= gd
->relocaddr
- CONFIG_SYS_TEXT_BASE
;
739 memcpy(gd
->new_gd
, (char *)gd
, sizeof(gd_t
));
741 debug("Relocation Offset is: %08lx\n", gd
->reloc_off
);
742 debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
743 gd
->relocaddr
, (ulong
)map_to_sysmem(gd
->new_gd
),
749 /* ARM calls relocate_code from its crt0.S */
750 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
752 static int jump_to_copy(void)
755 * x86 is special, but in a nice way. It uses a trampoline which
756 * enables the dcache if possible.
758 * For now, other archs use relocate_code(), which is implemented
759 * similarly for all archs. When we do generic relocation, hopefully
760 * we can make all archs enable the dcache prior to relocation.
764 * SDRAM and console are now initialised. The final stack can now
765 * be setup in SDRAM. Code execution will continue in Flash, but
766 * with the stack in SDRAM and Global Data in temporary memory
769 board_init_f_r_trampoline(gd
->start_addr_sp
);
771 relocate_code(gd
->start_addr_sp
, gd
->new_gd
, gd
->relocaddr
);
778 /* Record the board_init_f() bootstage (after arch_cpu_init()) */
779 static int mark_bootstage(void)
781 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F
, "board_init_f");
786 static int initf_malloc(void)
788 #ifdef CONFIG_SYS_MALLOC_F_LEN
789 assert(gd
->malloc_base
); /* Set up by crt0.S */
790 gd
->malloc_limit
= gd
->malloc_base
+ CONFIG_SYS_MALLOC_F_LEN
;
797 static int initf_dm(void)
799 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN)
802 ret
= dm_init_and_scan(true);
810 /* Architecture-specific memory reservation */
811 __weak
int reserve_arch(void)
816 static init_fnc_t init_sequence_f
[] = {
817 #ifdef CONFIG_SANDBOX
826 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
827 /* TODO: can this go into arch_cpu_init()? */
830 arch_cpu_init
, /* basic arch cpu dependent setup */
832 #ifdef CONFIG_OF_CONTROL
836 #if defined(CONFIG_BOARD_EARLY_INIT_F)
839 /* TODO: can any of this go into arch_cpu_init()? */
840 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
841 get_clocks
, /* get CPU and bus clocks (etc.) */
842 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
843 && !defined(CONFIG_TQM885D)
844 adjust_sdram_tbs_8xx
,
846 /* TODO: can we rename this to timer_init()? */
849 #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || defined(CONFIG_BLACKFIN)
850 timer_init
, /* initialize timer */
852 #ifdef CONFIG_SYS_ALLOC_DPRAM
853 #if !defined(CONFIG_CPM2)
857 #if defined(CONFIG_BOARD_POSTCLK_INIT)
860 #ifdef CONFIG_FSL_ESDHC
863 env_init
, /* initialize environment */
864 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
865 /* get CPU and bus clocks according to the environment variable */
867 /* adjust sdram refresh rate according to the new clock */
871 init_baud_rate
, /* initialze baudrate settings */
872 serial_init
, /* serial communications setup */
873 console_init_f
, /* stage 1 init of console */
874 #ifdef CONFIG_SANDBOX
875 sandbox_early_getopt_check
,
877 #ifdef CONFIG_OF_CONTROL
880 display_options
, /* say that we are here */
881 display_text_info
, /* show debugging info if required */
882 #if defined(CONFIG_MPC8260)
885 #endif /* CONFIG_MPC8260 */
886 #if defined(CONFIG_MPC83xx)
892 print_cpuinfo
, /* display cpu info (and speed) */
893 #if defined(CONFIG_MPC5xxx)
895 #endif /* CONFIG_MPC5xxx */
896 #if defined(CONFIG_DISPLAY_BOARDINFO)
899 INIT_FUNC_WATCHDOG_INIT
900 #if defined(CONFIG_MISC_INIT_F)
903 INIT_FUNC_WATCHDOG_RESET
904 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
907 #if defined(CONFIG_HARD_SPI)
911 /* TODO: unify all these dram functions? */
912 #if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_MICROBLAZE)
913 dram_init
, /* configure available RAM banks */
915 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC)
921 INIT_FUNC_WATCHDOG_RESET
922 #if defined(CONFIG_SYS_DRAM_TEST)
924 #endif /* CONFIG_SYS_DRAM_TEST */
925 INIT_FUNC_WATCHDOG_RESET
930 INIT_FUNC_WATCHDOG_RESET
932 * Now that we have DRAM mapped and working, we can
933 * relocate the code and continue running from DRAM.
935 * Reserve memory at end of RAM for (top down in that order):
936 * - area that won't get touched by U-Boot and Linux (optional)
937 * - kernel log buffer
941 * - board info struct
944 #if defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
945 /* Blackfin u-boot monitor should be on top of the ram */
948 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
955 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
963 /* TODO: Why the dependency on CONFIG_8xx? */
964 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
965 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
966 !defined(CONFIG_BLACKFIN)
969 #if !defined(CONFIG_BLACKFIN) && !defined(CONFIG_NIOS2)
972 #ifndef CONFIG_SPL_BUILD
985 INIT_FUNC_WATCHDOG_RESET
989 #ifdef CONFIG_SYS_EXTBDINFO
992 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
[] = {
1063 void board_init_f_r(void)
1065 if (initcall_run_list(init_sequence_f_r
))
1069 * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1070 * Transfer execution from Flash to RAM by calculating the address
1071 * of the in-RAM copy of board_init_r() and calling it
1073 (board_init_r
+ gd
->reloc_off
)(gd
, gd
->relocaddr
);
1075 /* NOTREACHED - board_init_r() does not return */
1078 #endif /* CONFIG_X86 */