C++ post_run函数代码示例

int do_diag (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
	unsigned int i;

	if (argc == 1 || strcmp (argv[1], "run") != 0) {
		/* List test info */
		if (argc == 1) {
			puts ("Available hardware tests:\n");
			post_info (NULL);
			puts ("Use 'diag [<test1> [<test2> ...]]'"
					" to get more info.\n");
			puts ("Use 'diag run [<test1> [<test2> ...]]'"
					" to run tests.\n");
		} else {
			for (i = 1; i < argc; i++) {
			    if (post_info (argv[i]) != 0)
				printf ("%s - no such test\n", argv[i]);
			}
		}
	} else {
		/* Run tests */
		if (argc == 2) {
			post_run (NULL, POST_RAM | POST_MANUAL);
		} else {
			for (i = 2; i < argc; i++) {
			    if (post_run (argv[i], POST_RAM | POST_MANUAL) != 0)
				printf ("%s - unable to execute the test\n",
					argv[i]);
			}
		}
	}

	return 0;
}

static int init_post(void)
{
	post_bootmode_init();
	post_run(NULL, POST_ROM | post_bootmode_get(0));

	return 0;
}

//.........这里部分代码省略.........
	addr = lcd_setmem(addr);
	gd->fb_base = addr;
#endif /* CONFIG_FB_ADDR */
#endif /* CONFIG_LCD */

	/*
	 * reserve memory for U-Boot code, data & bss
	 * round down to next 4 kB limit
	 */
	addr -= gd->mon_len;
	addr &= ~(4096 - 1);

	debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);

#ifndef CONFIG_SPL_BUILD
	/*
	 * reserve memory for malloc() arena
	 */
	addr_sp = addr - TOTAL_MALLOC_LEN;
	debug("Reserving %dk for malloc() at: %08lx\n",
			TOTAL_MALLOC_LEN >> 10, addr_sp);
	/*
	 * (permanently) allocate a Board Info struct
	 * and a permanent copy of the "global" data
	 */
	addr_sp -= sizeof (bd_t);
	bd = (bd_t *) addr_sp;
	gd->bd = bd;
	debug("Reserving %zu Bytes for Board Info at: %08lx\n",
			sizeof (bd_t), addr_sp);

#ifdef CONFIG_MACH_TYPE
	gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
#endif

	addr_sp -= sizeof (gd_t);
	id = (gd_t *) addr_sp;
	debug("Reserving %zu Bytes for Global Data at: %08lx\n",
			sizeof (gd_t), addr_sp);

#if defined(CONFIG_OF_SEPARATE) && defined(CONFIG_OF_CONTROL)
	/*
	 * If the device tree is sitting immediate above our image then we
	 * must relocate it. If it is embedded in the data section, then it
	 * will be relocated with other data.
	 */
	if (gd->fdt_blob) {
		fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);

		addr_sp -= fdt_size;
		new_fdt = (void *)addr_sp;
		debug("Reserving %zu Bytes for FDT at: %08lx\n",
		      fdt_size, addr_sp);
	}
#endif

#ifndef CONFIG_ARM64
	/* setup stackpointer for exeptions */
	gd->irq_sp = addr_sp;
#ifdef CONFIG_USE_IRQ
	addr_sp -= (CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ);
	debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
		CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ, addr_sp);
#endif
	/* leave 3 words for abort-stack    */
	addr_sp -= 12;

	/* 8-byte alignment for ABI compliance */
	addr_sp &= ~0x07;
#else	/* CONFIG_ARM64 */
	/* 16-byte alignment for ABI compliance */
	addr_sp &= ~0x0f;
#endif	/* CONFIG_ARM64 */
#else
	addr_sp += 128;	/* leave 32 words for abort-stack   */
	gd->irq_sp = addr_sp;
#endif

	debug("New Stack Pointer is: %08lx\n", addr_sp);

#ifdef CONFIG_POST
	post_bootmode_init();
	post_run(NULL, POST_ROM | post_bootmode_get(0));
#endif

	gd->bd->bi_baudrate = gd->baudrate;
	/* Ram ist board specific, so move it to board code ... */
	dram_init_banksize();
	display_dram_config();	/* and display it */

	gd->relocaddr = addr;
	gd->start_addr_sp = addr_sp;
	gd->reloc_off = addr - (ulong)&_start;
	debug("relocation Offset is: %08lx\n", gd->reloc_off);
	if (new_fdt) {
		memcpy(new_fdt, gd->fdt_blob, fdt_size);
		gd->fdt_blob = new_fdt;
	}
	memcpy(id, (void *)gd, sizeof(gd_t));
}

static int initr_post(void)
{
	post_run(NULL, POST_RAM | post_bootmode_get(0));
	return 0;
}

//.........这里部分代码省略.........
#if defined(CONFIG_API)
	/* Initialize API */
	api_init();
#endif

	console_init_r();	/* fully init console as a device */

#if defined(CONFIG_ARCH_MISC_INIT)
	/* miscellaneous arch dependent initialisations */
	arch_misc_init();
#endif
#if defined(CONFIG_MISC_INIT_R)
	/* miscellaneous platform dependent initialisations */
	misc_init_r();
#endif

	 /* set up exceptions */
	interrupt_init();
	/* enable exceptions */
	enable_interrupts();

	/* Perform network card initialisation if necessary */
#if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96)
	/* XXX: this needs to be moved to board init */
	if (getenv("ethaddr")) {
		uchar enetaddr[6];
		eth_getenv_enetaddr("ethaddr", enetaddr);
		smc_set_mac_addr(enetaddr);
	}
#endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */

	/* Initialize from environment */
	s = getenv("loadaddr");
	if (s != NULL)
		load_addr = simple_strtoul(s, NULL, 16);
#if defined(CONFIG_CMD_NET)
	s = getenv("bootfile");
	if (s != NULL)
		copy_filename(BootFile, s, sizeof(BootFile));
#endif

#ifdef BOARD_LATE_INIT
	board_late_init();
#endif

#ifdef CONFIG_BITBANGMII
	bb_miiphy_init();
#endif
#if defined(CONFIG_CMD_NET)
#if defined(CONFIG_NET_MULTI)
	puts("Net:   ");
#endif
	eth_initialize(gd->bd);
#if defined(CONFIG_RESET_PHY_R)
	debug("Reset Ethernet PHY\n");
	reset_phy();
#endif
#endif

#ifdef CONFIG_POST
	post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif

#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
	/*
	 * Export available size of memory for Linux,
	 * taking into account the protected RAM at top of memory
	 */
	{
		ulong pram;
		uchar memsz[32];
#ifdef CONFIG_PRAM
		char *s;

		s = getenv("pram");
		if (s != NULL)
			pram = simple_strtoul(s, NULL, 10);
		else
			pram = CONFIG_PRAM;
#else
		pram = 0;
#endif
#ifdef CONFIG_LOGBUFFER
#ifndef CONFIG_ALT_LB_ADDR
		/* Also take the logbuffer into account (pram is in kB) */
		pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
#endif
#endif
		sprintf((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
		setenv("mem", (char *)memsz);
	}
#endif

	/* main_loop() can return to retry autoboot, if so just run it again. */
	for (;;) {
		main_loop();
	}

	/* NOTREACHED - no way out of command loop except booting */
}

//.........这里部分代码省略.........
	reg = (i > 0) ? simple_strtoul((const char *)tmp, NULL, 10) :
		CONFIG_PRAM;
	addr -= (reg << 10);		/* size is in kB */
	debug("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
#endif /* CONFIG_PRAM */

#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
	/* reserve TLB table */
	addr -= (4096 * 4);

	/* round down to next 64 kB limit */
	addr &= ~(0x10000 - 1);

	gd->tlb_addr = addr;
	debug("TLB table at: %08lx\n", addr);
#endif

	/* round down to next 4 kB limit */
	addr &= ~(4096 - 1);
	debug("Top of RAM usable for U-Boot at: %08lx\n", addr);

#ifdef CONFIG_LCD
#ifdef CONFIG_FB_ADDR
	gd->fb_base = CONFIG_FB_ADDR;
#else
	/* reserve memory for LCD display (always full pages) */
	addr = lcd_setmem(addr);
	gd->fb_base = addr;
#endif /* CONFIG_FB_ADDR */
#endif /* CONFIG_LCD */

	/*
	 * reserve memory for U-Boot code, data & bss
	 * round down to next 4 kB limit
	 */
	addr -= gd->mon_len;
	addr &= ~(4096 - 1);

	debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);

#ifndef CONFIG_SPL_BUILD
	/*
	 * reserve memory for malloc() arena
	 */
	addr_sp = addr - TOTAL_MALLOC_LEN;
	debug("Reserving %dk for malloc() at: %08lx\n",
			TOTAL_MALLOC_LEN >> 10, addr_sp);
	/*
	 * (permanently) allocate a Board Info struct
	 * and a permanent copy of the "global" data
	 */
	addr_sp -= sizeof (bd_t);
	bd = (bd_t *) addr_sp;
	gd->bd = bd;
	debug("Reserving %zu Bytes for Board Info at: %08lx\n",
			sizeof (bd_t), addr_sp);
	addr_sp -= sizeof (gd_t);
	id = (gd_t *) addr_sp;
	debug("Reserving %zu Bytes for Global Data at: %08lx\n",
			sizeof (gd_t), addr_sp);

	/* setup stackpointer for exeptions */
	gd->irq_sp = addr_sp;
#ifdef CONFIG_USE_IRQ
	addr_sp -= (CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ);
	debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
		CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ, addr_sp);
#endif
	/* leave 3 words for abort-stack    */
	addr_sp -= 12;

	/* 8-byte alignment for ABI compliance */
	addr_sp &= ~0x07;
#else
	addr_sp += 128;	/* leave 32 words for abort-stack   */
	gd->irq_sp = addr_sp;
#endif

	debug("New Stack Pointer is: %08lx\n", addr_sp);

#ifdef CONFIG_POST
	post_bootmode_init();
	post_run(NULL, POST_ROM | post_bootmode_get(0));
#endif

	gd->bd->bi_baudrate = gd->baudrate;
	/* Ram ist board specific, so move it to board code ... */
	dram_init_banksize();
	display_dram_config();	/* and display it */

	gd->relocaddr = addr;
	gd->start_addr_sp = addr_sp;
	gd->reloc_off = addr - _TEXT_BASE;
	debug("relocation Offset is: %08lx\n", gd->reloc_off);
	memcpy(id, (void *)gd, sizeof(gd_t));

	relocate_code(addr_sp, id, addr);

	/* NOTREACHED - relocate_code() does not return */
}

//.........这里部分代码省略.........
	/* Initialize from environment */
	load_addr = getenv_ulong("loadaddr", 16, load_addr);

	WATCHDOG_RESET();

#if defined(CONFIG_CMD_SCSI)
	WATCHDOG_RESET();
	puts("SCSI:  ");
	scsi_init();
#endif

#if defined(CONFIG_CMD_DOC)
	WATCHDOG_RESET();
	puts("DOC:   ");
	doc_init();
#endif

#ifdef CONFIG_BITBANGMII
	bb_miiphy_init();
#endif
#if defined(CONFIG_CMD_NET)
	WATCHDOG_RESET();
	puts("Net:   ");
	eth_initialize(bd);
#endif

#if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
	WATCHDOG_RESET();
	debug("Reset Ethernet PHY\n");
	reset_phy();
#endif

#ifdef CONFIG_POST
	post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif

#if defined(CONFIG_CMD_PCMCIA) \
    && !defined(CONFIG_CMD_IDE)
	WATCHDOG_RESET();
	puts("PCMCIA:");
	pcmcia_init();
#endif

#if defined(CONFIG_CMD_IDE)
	WATCHDOG_RESET();
#ifdef	CONFIG_IDE_8xx_PCCARD
	puts("PCMCIA:");
#else
	puts("IDE:   ");
#endif
#if defined(CONFIG_START_IDE)
	if (board_start_ide())
		ide_init();
#else
	ide_init();
#endif
#endif

#ifdef CONFIG_LAST_STAGE_INIT
	WATCHDOG_RESET();
	/*
	 * Some parts can be only initialized if all others (like
	 * Interrupts) are up and running (i.e. the PC-style ISA
	 * keyboard).
	 */
	last_stage_init();

//.........这里部分代码省略.........
		uchar enetaddr[6];
		eth_getenv_enetaddr("ethaddr", enetaddr);
		smc_set_mac_addr(enetaddr);
	}
#endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */

	/* Initialize from environment */
	s = getenv("loadaddr");
	if (s != NULL)
		load_addr = simple_strtoul(s, NULL, 16);
#if defined(CONFIG_CMD_NET)
	s = getenv("bootfile");
	if (s != NULL)
		copy_filename(BootFile, s, sizeof(BootFile));
#endif
#ifdef BOARD_LATE_INIT
	board_late_init();
#endif
#ifdef CONFIG_BITBANGMII
	bb_miiphy_init();
#endif
#if defined(CONFIG_CMD_NET)
#if defined(CONFIG_NET_MULTI)
	puts("Net:   ");
#endif
	eth_initialize(gd->bd);
#if defined(CONFIG_RESET_PHY_R)
	debug("Reset Ethernet PHY\n");
	reset_phy();
#endif
#endif

#ifdef CONFIG_POST
	post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif

#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
	/*
	 * Export available size of memory for Linux,
	 * taking into account the protected RAM at top of memory
	 */
	{
		ulong pram;
		uchar memsz[32];
#ifdef CONFIG_PRAM
		char *s;

		s = getenv("pram");
		if (s != NULL)
			pram = simple_strtoul(s, NULL, 10);
		else
			pram = CONFIG_PRAM;
#else
		pram = 0;
#endif
#ifdef CONFIG_LOGBUFFER
#ifndef CONFIG_ALT_LB_ADDR
		/* Also take the logbuffer into account (pram is in kB) */
		pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
#endif
#endif
		sprintf((char *)memsz, "%ldk", (gd->ram_size / 1024) - pram);
		setenv("mem", (char *)memsz);
	}
#endif
	//sprite_cartoon_test();

void board_init_r(gd_t *id, ulong dest_addr)
{

	if (id)
		gd = id;

	gd->flags |= GD_FLG_RELOC;	/* tell others: relocation done */

#ifdef CONFIG_SERIAL_MULTI
	serial_initialize();
#endif

#ifdef CONFIG_POST
	post_output_backlog();
#endif

	/* The Malloc area is at the top of simulated DRAM */
	mem_malloc_init((ulong)gd->ram_buf + gd->ram_size - TOTAL_MALLOC_LEN,
			TOTAL_MALLOC_LEN);

	/* initialize environment */
	env_relocate();

	/* IP Address */
	gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr");

	stdio_init();	/* get the devices list going. */

	jumptable_init();

	console_init_r();	/* fully init console as a device */

#if defined(CONFIG_DISPLAY_BOARDINFO_LATE)
	checkboard();
#endif

#if defined(CONFIG_ARCH_MISC_INIT)
	/* miscellaneous arch dependent initialisations */
	arch_misc_init();
#endif
#if defined(CONFIG_MISC_INIT_R)
	/* miscellaneous platform dependent initialisations */
	misc_init_r();
#endif

	 /* set up exceptions */
	interrupt_init();
	/* enable exceptions */
	enable_interrupts();

#ifdef CONFIG_BOARD_LATE_INIT
	board_late_init();
#endif

#ifdef CONFIG_POST
	post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif

	sandbox_main_loop_init();

	/*
	 * For now, run the main loop. Later we might let this be done
	 * in the main program.
	 */
	while (1)
		main_loop();

	/* NOTREACHED - no way out of command loop except booting */
}

int post_run_r(void)
{
	post_run(NULL, POST_RAM | post_bootmode_get(0));

	return 0;
}

//.........这里部分代码省略.........
    /* Initialize the console (after the relocation and devices init) */
    console_init_r();

#ifdef CONFIG_MISC_INIT_R
    /* miscellaneous platform dependent initialisations */
    misc_init_r();
#endif

#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
    WATCHDOG_RESET();
    puts ("PCMCIA:");
    pcmcia_init();
#endif

#if defined(CONFIG_CMD_KGDB)
    WATCHDOG_RESET();
    puts("KGDB:  ");
    kgdb_init();
#endif

    /* enable exceptions */
    enable_interrupts();
    show_boot_progress(0x28);

#ifdef CONFIG_STATUS_LED
    status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
#endif

    udelay(20);

    /* Initialize from environment */
    load_addr = getenv_ulong("loadaddr", 16, load_addr);
#if defined(CONFIG_CMD_NET)
    if ((s = getenv ("bootfile")) != NULL) {
        copy_filename (BootFile, s, sizeof (BootFile));
    }
#endif

    WATCHDOG_RESET();

#if defined(CONFIG_CMD_IDE)
    WATCHDOG_RESET();
    puts("IDE:   ");
    ide_init();
#endif

#if defined(CONFIG_CMD_SCSI)
    WATCHDOG_RESET();
    puts("SCSI:  ");
    scsi_init();
#endif

#if defined(CONFIG_CMD_DOC)
    WATCHDOG_RESET();
    puts("DOC:   ");
    doc_init();
#endif

#ifdef CONFIG_BITBANGMII
    bb_miiphy_init();
#endif
#if defined(CONFIG_CMD_NET)
    WATCHDOG_RESET();
    puts("Net:   ");
    eth_initialize(gd->bd);
#endif

#if ( defined(CONFIG_CMD_NET)) && (0)
    WATCHDOG_RESET();
# ifdef DEBUG
    puts ("Reset Ethernet PHY\n");
# endif
    reset_phy();
#endif

#ifdef CONFIG_LAST_STAGE_INIT
    WATCHDOG_RESET();
    /*
     * Some parts can be only initialized if all others (like
     * Interrupts) are up and running (i.e. the PC-style ISA
     * keyboard).
     */
    last_stage_init();
#endif


#ifdef CONFIG_POST
    post_run (NULL, POST_RAM | post_bootmode_get(0));
#endif


    show_boot_progress(0x29);

    /* main_loop() can return to retry autoboot, if so just run it again. */
    for (;;) {
        main_loop();
    }

    /* NOTREACHED - no way out of command loop except booting */
}

//.........这里部分代码省略.........

#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
	arm_pci_init();
#endif

	stdio_init();	/* get the devices list going. */

	jumptable_init();

#if defined(CONFIG_API)
	/* Initialize API */
	api_init();
#endif

	console_init_r();	/* fully init console as a device */

#ifdef CONFIG_DISPLAY_BOARDINFO_LATE
# ifdef CONFIG_OF_CONTROL
	/* Put this here so it appears on the LCD, now it is ready */
	display_fdt_model(gd->fdt_blob);
# else
	checkboard();
# endif
#endif

#if defined(CONFIG_ARCH_MISC_INIT)
	/* miscellaneous arch dependent initialisations */
	arch_misc_init();
#endif
#if defined(CONFIG_MISC_INIT_R)
	/* miscellaneous platform dependent initialisations */
	misc_init_r();
#endif

	 /* set up exceptions */
	interrupt_init();
	/* enable exceptions */
	enable_interrupts();

	/* Initialize from environment */
	load_addr = getenv_ulong("loadaddr", 16, load_addr);

#ifdef CONFIG_BOARD_LATE_INIT
	board_late_init();
#endif

#ifdef CONFIG_FASTBOOT
	fastboot_setup();
#endif

#ifdef CONFIG_BITBANGMII
	bb_miiphy_init();
#endif
#if defined(CONFIG_CMD_NET)
	puts("Net:   ");
	eth_initialize(gd->bd);
#if defined(CONFIG_RESET_PHY_R)
	debug("Reset Ethernet PHY\n");
	reset_phy();
#endif
#endif

#ifdef CONFIG_POST
	post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif

#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
	/*
	 * Export available size of memory for Linux,
	 * taking into account the protected RAM at top of memory
	 */
	{
		ulong pram = 0;
		uchar memsz[32];

#ifdef CONFIG_PRAM
		pram = getenv_ulong("pram", 10, CONFIG_PRAM);
#endif
#ifdef CONFIG_LOGBUFFER
#ifndef CONFIG_ALT_LB_ADDR
		/* Also take the logbuffer into account (pram is in kB) */
		pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
#endif
#endif
		sprintf((char *)memsz, "%ldk", (gd->ram_size / 1024) - pram);
		setenv("mem", (char *)memsz);
	}
#endif

#ifdef CONFIG_FASTBOOT
	check_fastboot();
#endif

	/* main_loop() can return to retry autoboot, if so just run it again. */
	for (;;) {
		main_loop();
	}

	/* NOTREACHED - no way out of command loop except booting */
}

void board_init_f(ulong bootflag)
{
    cmd_tbl_t *cmdtp;
    bd_t *bd;
    unsigned char *s;
    init_fnc_t **init_fnc_ptr;
    int j;
    int i;
    char *e;

#ifndef CONFIG_SYS_NO_FLASH
    ulong flash_size;
#endif

    gd = (gd_t *) (CONFIG_SYS_GBL_DATA_OFFSET);

    /* Clear initial global data */
    memset((void *)gd, 0, sizeof(gd_t));

    gd->bd = (bd_t *) (gd + 1);	/* At end of global data */
    gd->baudrate = CONFIG_BAUDRATE;
    gd->cpu_clk = CONFIG_SYS_CLK_FREQ;

    bd = gd->bd;
    bd->bi_memstart = CONFIG_SYS_RAM_BASE;
    bd->bi_memsize = CONFIG_SYS_RAM_SIZE;
    bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
#if	defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
    bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;
    bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
#endif
    bd->bi_baudrate = CONFIG_BAUDRATE;
    bd->bi_bootflags = bootflag;	/* boot / reboot flag (for LynxOS)    */

    gd->flags |= GD_FLG_RELOC;	/* tell others: relocation done */
    gd->reloc_off = CONFIG_SYS_RELOC_MONITOR_BASE - CONFIG_SYS_MONITOR_BASE;

    for (init_fnc_ptr = init_sequence, j = 0; *init_fnc_ptr;
            ++init_fnc_ptr, j++) {
#ifdef DEBUG_INIT_SEQUENCE
        if (j > 9)
            str_init_seq[9] = '0' + (j / 10);
        str_init_seq[10] = '0' + (j - (j / 10) * 10);
        serial_puts(str_init_seq);
#endif
        if ((*init_fnc_ptr + gd->reloc_off) () != 0) {
            hang();
        }
    }
#ifdef DEBUG_INIT_SEQUENCE
    serial_puts(str_init_seq_done);
#endif

    /*
     * Now that we have DRAM mapped and working, we can
     * relocate the code and continue running from DRAM.
     *
     * Reserve memory at end of RAM for (top down in that order):
     *  - kernel log buffer
     *  - protected RAM
     *  - LCD framebuffer
     *  - monitor code
     *  - board info struct
     */
#ifdef DEBUG_MEM_LAYOUT
    printf("CONFIG_SYS_MONITOR_BASE:       0x%lx\n", CONFIG_SYS_MONITOR_BASE);
    printf("CONFIG_ENV_ADDR:           0x%lx\n", CONFIG_ENV_ADDR);
    printf("CONFIG_SYS_RELOC_MONITOR_BASE: 0x%lx (%d)\n", CONFIG_SYS_RELOC_MONITOR_BASE,
           CONFIG_SYS_MONITOR_LEN);
    printf("CONFIG_SYS_MALLOC_BASE:        0x%lx (%d)\n", CONFIG_SYS_MALLOC_BASE,
           CONFIG_SYS_MALLOC_LEN);
    printf("CONFIG_SYS_INIT_SP_OFFSET:     0x%lx (%d)\n", CONFIG_SYS_INIT_SP_OFFSET,
           CONFIG_SYS_STACK_SIZE);
    printf("CONFIG_SYS_PROM_OFFSET:        0x%lx (%d)\n", CONFIG_SYS_PROM_OFFSET,
           CONFIG_SYS_PROM_SIZE);
    printf("CONFIG_SYS_GBL_DATA_OFFSET:    0x%lx (%d)\n", CONFIG_SYS_GBL_DATA_OFFSET,
           CONFIG_SYS_GBL_DATA_SIZE);
#endif

#ifdef CONFIG_POST
    post_bootmode_init();
    post_run(NULL, POST_ROM | post_bootmode_get(0));
#endif

    /*
     * We have to relocate the command table manually
     */
    for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
        ulong addr;
        addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
#if DEBUG_COMMANDS
        printf("Command \"%s\": 0x%08lx => 0x%08lx\n",
               cmdtp->name, (ulong) (cmdtp->cmd), addr);
#endif
        cmdtp->cmd =
            (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;

        addr = (ulong) (cmdtp->name) + gd->reloc_off;
        cmdtp->name = (char *)addr;

//.........这里部分代码省略.........

void board_init_f(ulong bootflag)
{
	bd_t *bd;
	ulong len, addr, addr_sp;
	ulong *s;
	gd_t *id;
	init_fnc_t **init_fnc_ptr;

#ifdef CONFIG_PRAM
	ulong reg;
#endif

	/* Pointer is writable since we allocated a register for it */
	gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
	/* compiler optimization barrier needed for GCC >= 3.4 */
	__asm__ __volatile__("":::"memory");

#if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \
    !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \
    !defined(CONFIG_MPC86xx)
	/* Clear initial global data */
	memset((void *) gd, 0, sizeof(gd_t));
#endif

	gd->flags = bootflag;

	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr)
		if ((*init_fnc_ptr) () != 0)
			hang();

#ifdef CONFIG_POST
	post_bootmode_init();
	post_run(NULL, POST_ROM | post_bootmode_get(NULL));
#endif

	WATCHDOG_RESET();

	/*
	 * Now that we have DRAM mapped and working, we can
	 * relocate the code and continue running from DRAM.
	 *
	 * Reserve memory at end of RAM for (top down in that order):
	 *  - area that won't get touched by U-Boot and Linux (optional)
	 *  - kernel log buffer
	 *  - protected RAM
	 *  - LCD framebuffer
	 *  - monitor code
	 *  - board info struct
	 */
	len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;

	/*
	 * Subtract specified amount of memory to hide so that it won't
	 * get "touched" at all by U-Boot. By fixing up gd->ram_size
	 * the Linux kernel should now get passed the now "corrected"
	 * memory size and won't touch it either. This should work
	 * for arch/ppc and arch/powerpc. Only Linux board ports in
	 * arch/powerpc with bootwrapper support, that recalculate the
	 * memory size from the SDRAM controller setup will have to
	 * get fixed.
	 */
	gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;

	addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize();

#if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
	/*
	 * We need to make sure the location we intend to put secondary core
	 * boot code is reserved and not used by any part of u-boot
	 */
	if (addr > determine_mp_bootpg(NULL)) {
		addr = determine_mp_bootpg(NULL);
		debug("Reserving MP boot page to %08lx\n", addr);
	}
#endif

#ifdef CONFIG_LOGBUFFER
#ifndef CONFIG_ALT_LB_ADDR
	/* reserve kernel log buffer */
	addr -= (LOGBUFF_RESERVE);
	debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
	      addr);
#endif
#endif

#ifdef CONFIG_PRAM
	/*
	 * reserve protected RAM
	 */
	reg = getenv_ulong("pram", 10, CONFIG_PRAM);
	addr -= (reg << 10);	/* size is in kB */
	debug("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
#endif /* CONFIG_PRAM */

	/* round down to next 4 kB limit */
	addr &= ~(4096 - 1);
	debug("Top of RAM usable for U-Boot at: %08lx\n", addr);

#ifdef CONFIG_LCD
#ifdef CONFIG_FB_ADDR
//.........这里部分代码省略.........