arch/blackfin/lib/board.c - github/trini/u-boot - Gitiles

 /*
  * U-boot - board.c First C file to be called contains init routines
  *
  * Copyright (c) 2005-2008 Analog Devices Inc.
  *
  * (C) Copyright 2000-2004
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
  * Licensed under the GPL-2 or later.
  */

 #include <common.h>
 #include <command.h>
 #include <stdio_dev.h>
 #include <serial.h>
 #include <environment.h>
 #include <malloc.h>
 #include <mmc.h>
 #include <net.h>
 #include <status_led.h>
 #include <version.h>

 #include <asm/cplb.h>
 #include <asm/mach-common/bits/mpu.h>
 #include <kgdb.h>

 #ifdef CONFIG_CMD_NAND
 #include <nand.h>	/* cannot even include nand.h if it isnt configured */
 #endif

 #ifdef CONFIG_BITBANGMII
 #include <miiphy.h>
 #endif

 #if defined(CONFIG_POST)
 #include <post.h>
 int post_flag;
 #endif

 #if defined(CONFIG_SYS_I2C)
 #include <i2c.h>
 #endif

 DECLARE_GLOBAL_DATA_PTR;

 __attribute__((always_inline))
 static inline void serial_early_puts(const char *s)
 {
 #ifdef CONFIG_DEBUG_EARLY_SERIAL
 	serial_puts("Early: ");
 	serial_puts(s);
 #endif
 }

 static int display_banner(void)
 {
 	display_options();
 	printf("CPU:   ADSP %s "
 		"(Detected Rev: 0.%d) "
 		"(%s boot)\n",
 		gd->bd->bi_cpu,
 		bfin_revid(),
 		get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
 	return 0;
 }

 static int init_baudrate(void)
 {
 	gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
 	gd->bd->bi_baudrate = gd->baudrate;
 	return 0;
 }

 static void display_global_data(void)
 {
 	bd_t *bd;

 #ifndef CONFIG_DEBUG_EARLY_SERIAL
 	return;
 #endif

 	bd = gd->bd;
 	printf(" gd: %p\n", gd);
 	printf(" |-flags: %lx\n", gd->flags);
 	printf(" |-board_type: %lx\n", gd->arch.board_type);
 	printf(" |-baudrate: %u\n", gd->baudrate);
 	printf(" |-have_console: %lx\n", gd->have_console);
 	printf(" |-ram_size: %lx\n", gd->ram_size);
 	printf(" |-env_addr: %lx\n", gd->env_addr);
 	printf(" |-env_valid: %lx\n", gd->env_valid);
 	printf(" |-jt(%p): %p\n", gd->jt, *(gd->jt));
 	printf(" \\-bd: %p\n", gd->bd);
 	printf("   |-bi_baudrate: %x\n", bd->bi_baudrate);
 	printf("   |-bi_boot_params: %lx\n", bd->bi_boot_params);
 	printf("   |-bi_memstart: %lx\n", bd->bi_memstart);
 	printf("   |-bi_memsize: %lx\n", bd->bi_memsize);
 	printf("   |-bi_flashstart: %lx\n", bd->bi_flashstart);
 	printf("   |-bi_flashsize: %lx\n", bd->bi_flashsize);
 	printf("   \\-bi_flashoffset: %lx\n", bd->bi_flashoffset);
 }

 #define CPLB_PAGE_SIZE (4 * 1024 * 1024)
 #define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
 #if defined(__ADSPBF60x__)
 #define CPLB_EX_PAGE_SIZE (16 * 1024 * 1024)
 #define CPLB_EX_PAGE_MASK (~(CPLB_EX_PAGE_SIZE - 1))
 #else
 #define CPLB_EX_PAGE_SIZE CPLB_PAGE_SIZE
 #define CPLB_EX_PAGE_MASK CPLB_PAGE_MASK
 #endif
 void init_cplbtables(void)
 {
 	volatile uint32_t *ICPLB_ADDR, *ICPLB_DATA;
 	volatile uint32_t *DCPLB_ADDR, *DCPLB_DATA;
 	uint32_t extern_memory;
 	size_t i;

 	void icplb_add(uint32_t addr, uint32_t data)
 	{
 		*(ICPLB_ADDR + i) = addr;
 		*(ICPLB_DATA + i) = data;
 	}
 	void dcplb_add(uint32_t addr, uint32_t data)
 	{
 		*(DCPLB_ADDR + i) = addr;
 		*(DCPLB_DATA + i) = data;
 	}

 	/* populate a few common entries ... we'll let
 	 * the memory map and cplb exception handler do
 	 * the rest of the work.
 	 */
 	i = 0;
 	ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
 	ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
 	DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
 	DCPLB_DATA = (uint32_t *)DCPLB_DATA0;

 	icplb_add(0xFFA00000, L1_IMEMORY);
 	dcplb_add(0xFF800000, L1_DMEMORY);
 	++i;
 #if defined(__ADSPBF60x__)
 	icplb_add(0x0, 0x0);
 	dcplb_add(CONFIG_SYS_FLASH_BASE, SDRAM_EBIU);
 	++i;
 #endif

 	if (CONFIG_MEM_SIZE) {
 		uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
 		uint32_t mend  = mbase + CONFIG_SYS_MONITOR_LEN;
 		mbase &= CPLB_PAGE_MASK;
 		mend &= CPLB_PAGE_MASK;

 		icplb_add(mbase, SDRAM_IKERNEL);
 		dcplb_add(mbase, SDRAM_DKERNEL);
 		++i;

 		/*
 		 * If the monitor crosses a 4 meg boundary, we'll need
 		 * to lock two entries for it.  We assume it doesn't
 		 * cross two 4 meg boundaries ...
 		 */
 		if (mbase != mend) {
 			icplb_add(mend, SDRAM_IKERNEL);
 			dcplb_add(mend, SDRAM_DKERNEL);
 			++i;
 		}
 	}

 #ifndef __ADSPBF60x__
 	icplb_add(0x20000000, SDRAM_INON_CHBL);
 	dcplb_add(0x20000000, SDRAM_EBIU);
 	++i;
 #endif

 	/* Add entries for the rest of external RAM up to the bootrom */
 	extern_memory = 0;

 #ifdef CONFIG_DEBUG_NULL_PTR
 	icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
 	dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
 	++i;
 	icplb_add(extern_memory, SDRAM_IKERNEL);
 	dcplb_add(extern_memory, SDRAM_DKERNEL);
 	extern_memory += CPLB_PAGE_SIZE;
 	++i;
 #endif

 	while (i < 16 && extern_memory <
 		(CONFIG_SYS_MONITOR_BASE & CPLB_EX_PAGE_MASK)) {
 		icplb_add(extern_memory, SDRAM_IGENERIC);
 		dcplb_add(extern_memory, SDRAM_DGENERIC);
 		extern_memory += CPLB_EX_PAGE_SIZE;
 		++i;
 	}
 	while (i < 16) {
 		icplb_add(0, 0);
 		dcplb_add(0, 0);
 		++i;
 	}
 }

 static int global_board_data_init(void)
 {
 #ifndef CONFIG_SYS_GBL_DATA_ADDR
 # define CONFIG_SYS_GBL_DATA_ADDR 0
 #endif
 #ifndef CONFIG_SYS_BD_INFO_ADDR
 # define CONFIG_SYS_BD_INFO_ADDR 0
 #endif

 	bd_t *bd;

 	if (CONFIG_SYS_GBL_DATA_ADDR) {
 		gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
 		memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
 	} else {
 		static gd_t _bfin_gd;
 		gd = &_bfin_gd;
 	}

 	if (CONFIG_SYS_BD_INFO_ADDR) {
 		bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR);
 		memset(bd, 0, GENERATED_BD_INFO_SIZE);
 	} else {
 		static bd_t _bfin_bd;
 		bd = &_bfin_bd;
 	}
 	gd->bd = bd;

 	bd->bi_r_version = version_string;
 	bd->bi_cpu = __stringify(CONFIG_BFIN_CPU);
 	bd->bi_board_name = BFIN_BOARD_NAME;
 	bd->bi_vco = get_vco();
 	bd->bi_cclk = get_cclk();
 	bd->bi_sclk = get_sclk();
 	bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
 	bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;

 	return 0;
 }

 /*
  * All attempts to come up with a "common" initialization sequence
  * that works for all boards and architectures failed: some of the
  * requirements are just _too_ different. To get rid of the resulting
  * mess of board dependend #ifdef'ed code we now make the whole
  * initialization sequence configurable to the user.
  *
  * The requirements for any new initalization function is simple: it
  * receives a pointer to the "global data" structure as it's only
  * argument, and returns an integer return code, where 0 means
  * "continue" and != 0 means "fatal error, hang the system".
  */

 extern int watchdog_init(void);
 extern int exception_init(void);
 extern int irq_init(void);
 extern int timer_init(void);

 void board_init_f(ulong bootflag)
 {
 	char buf[32];

 #ifdef CONFIG_BOARD_EARLY_INIT_F
 	serial_early_puts("Board early init flash\n");
 	board_early_init_f();
 #endif

 	serial_early_puts("Init CPLB tables\n");
 	init_cplbtables();

 	serial_early_puts("Exceptions setup\n");
 	exception_init();

 #ifndef CONFIG_ICACHE_OFF
 	serial_early_puts("Turn on ICACHE\n");
 	icache_enable();
 #endif
 #ifndef CONFIG_DCACHE_OFF
 	serial_early_puts("Turn on DCACHE\n");
 	dcache_enable();
 #endif

 #ifdef CONFIG_HW_WATCHDOG
 	serial_early_puts("Setting up external watchdog\n");
 	hw_watchdog_init();
 #endif

 #ifdef DEBUG
 	if (GENERATED_GBL_DATA_SIZE < sizeof(*gd))
 		hang();
 #endif
 	serial_early_puts("Init global data\n");

 	global_board_data_init();

 	/* Initialize */
 	serial_early_puts("IRQ init\n");
 	irq_init();
 	serial_early_puts("Environment init\n");
 	env_init();
 	serial_early_puts("Baudrate init\n");
 	init_baudrate();
 	serial_early_puts("Serial init\n");
 	serial_init();
 	serial_initialize();
 	serial_early_puts("Console init flash\n");
 	console_init_f();
 	serial_early_puts("End of early debugging\n");
 	display_banner();

 	checkboard();
 	timer_init();

 	printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
 	printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
 #if defined(__ADSPBF60x__)
 	printf("System0: %s MHz, ", strmhz(buf, get_sclk0()));
 	printf("System1: %s MHz, ", strmhz(buf, get_sclk1()));
 	printf("Dclk: %s MHz\n", strmhz(buf, get_dclk()));
 #else
 	printf("System: %s MHz\n", strmhz(buf, get_sclk()));
 #endif

 	if (CONFIG_MEM_SIZE) {
 		printf("RAM:   ");
 		print_size(gd->bd->bi_memsize, "\n");
 	}

 #if defined(CONFIG_POST)
 	post_init_f();
 	post_bootmode_init();
 	post_run(NULL, POST_ROM | post_bootmode_get(0));
 #endif

 	board_init_r((gd_t *) gd, 0x20000010);
 }

 static void board_net_init_r(bd_t *bd)
 {
 #ifdef CONFIG_BITBANGMII
 	bb_miiphy_init();
 #endif
 #ifdef CONFIG_CMD_NET
 	printf("Net:   ");
 	eth_initialize(bd);
 #endif
 }

 void board_init_r(gd_t * id, ulong dest_addr)
 {
 	bd_t *bd;
 	gd = id;
 	gd->flags |= GD_FLG_RELOC;	/* tell others: relocation done */
 	bd = gd->bd;

 #if defined(CONFIG_POST)
 	post_output_backlog();
 #endif

 	/* initialize malloc() area */
 	mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);

 #if	!defined(CONFIG_SYS_NO_FLASH)
 	/* Initialize the flash and protect u-boot by default */
 	extern flash_info_t flash_info[];
 	puts("Flash: ");
 	ulong size = flash_init();
 	print_size(size, "\n");
 	flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
 		CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
 		&flash_info[0]);
 	bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
 	bd->bi_flashsize = size;
 	bd->bi_flashoffset = 0;
 #else
 	bd->bi_flashstart = 0;
 	bd->bi_flashsize = 0;
 	bd->bi_flashoffset = 0;
 #endif

 #ifdef CONFIG_CMD_NAND
 	puts("NAND:  ");
 	nand_init();		/* go init the NAND */
 #endif

 #ifdef CONFIG_GENERIC_MMC
 	puts("MMC:   ");
 	mmc_initialize(bd);
 #endif

 #if defined(CONFIG_SYS_I2C)
 	i2c_reloc_fixup();
 #endif
 	/* relocate environment function pointers etc. */
 	env_relocate();

 	/* Initialize stdio devices */
 	stdio_init();
 	jumptable_init();

 	/* Initialize the console (after the relocation and devices init) */
 	console_init_r();

 #ifdef CONFIG_CMD_KGDB
 	puts("KGDB:  ");
 	kgdb_init();
 #endif

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

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

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

 	board_net_init_r(bd);

 	display_global_data();

 #if defined(CONFIG_POST)
 	if (post_flag)
 		post_run(NULL, POST_RAM | post_bootmode_get(0));
 #endif

 	if (CONFIG_MEM_SIZE && bfin_os_log_check()) {
 		puts("\nLog buffer from operating system:\n");
 		bfin_os_log_dump();
 		puts("\n");
 	}

 	/* main_loop() can return to retry autoboot, if so just run it again. */
 	for (;;)
 		main_loop();
 }
	/*
	* U-boot - board.c First C file to be called contains init routines
	*
	* Copyright (c) 2005-2008 Analog Devices Inc.
	*
	* (C) Copyright 2000-2004
	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	*
	* Licensed under the GPL-2 or later.
	*/

	#include <common.h>
	#include <command.h>
	#include <stdio_dev.h>
	#include <serial.h>
	#include <environment.h>
	#include <malloc.h>
	#include <mmc.h>
	#include <net.h>
	#include <status_led.h>
	#include <version.h>

	#include <asm/cplb.h>
	#include <asm/mach-common/bits/mpu.h>
	#include <kgdb.h>

	#ifdef CONFIG_CMD_NAND
	#include <nand.h> /* cannot even include nand.h if it isnt configured */
	#endif

	#ifdef CONFIG_BITBANGMII
	#include <miiphy.h>
	#endif

	#if defined(CONFIG_POST)
	#include <post.h>
	int post_flag;
	#endif

	#if defined(CONFIG_SYS_I2C)
	#include <i2c.h>
	#endif

	DECLARE_GLOBAL_DATA_PTR;

	__attribute__((always_inline))
	static inline void serial_early_puts(const char *s)
	{
	#ifdef CONFIG_DEBUG_EARLY_SERIAL
	serial_puts("Early: ");
	serial_puts(s);
	#endif
	}

	static int display_banner(void)
	{
	display_options();
	printf("CPU: ADSP %s "
	"(Detected Rev: 0.%d) "
	"(%s boot)\n",
	gd->bd->bi_cpu,
	bfin_revid(),
	get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
	return 0;
	}

	static int init_baudrate(void)
	{
	gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
	gd->bd->bi_baudrate = gd->baudrate;
	return 0;
	}

	static void display_global_data(void)
	{
	bd_t *bd;

	#ifndef CONFIG_DEBUG_EARLY_SERIAL
	return;
	#endif

	bd = gd->bd;
	printf(" gd: %p\n", gd);
	printf(" \|-flags: %lx\n", gd->flags);
	printf(" \|-board_type: %lx\n", gd->arch.board_type);
	printf(" \|-baudrate: %u\n", gd->baudrate);
	printf(" \|-have_console: %lx\n", gd->have_console);
	printf(" \|-ram_size: %lx\n", gd->ram_size);
	printf(" \|-env_addr: %lx\n", gd->env_addr);
	printf(" \|-env_valid: %lx\n", gd->env_valid);
	printf(" \|-jt(%p): %p\n", gd->jt, *(gd->jt));
	printf(" \\-bd: %p\n", gd->bd);
	printf(" \|-bi_baudrate: %x\n", bd->bi_baudrate);
	printf(" \|-bi_boot_params: %lx\n", bd->bi_boot_params);
	printf(" \|-bi_memstart: %lx\n", bd->bi_memstart);
	printf(" \|-bi_memsize: %lx\n", bd->bi_memsize);
	printf(" \|-bi_flashstart: %lx\n", bd->bi_flashstart);
	printf(" \|-bi_flashsize: %lx\n", bd->bi_flashsize);
	printf(" \\-bi_flashoffset: %lx\n", bd->bi_flashoffset);
	}

	#define CPLB_PAGE_SIZE (4 * 1024 * 1024)
	#define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
	#if defined(__ADSPBF60x__)
	#define CPLB_EX_PAGE_SIZE (16 * 1024 * 1024)
	#define CPLB_EX_PAGE_MASK (~(CPLB_EX_PAGE_SIZE - 1))
	#else
	#define CPLB_EX_PAGE_SIZE CPLB_PAGE_SIZE
	#define CPLB_EX_PAGE_MASK CPLB_PAGE_MASK
	#endif
	void init_cplbtables(void)
	{
	volatile uint32_t ICPLB_ADDR, ICPLB_DATA;
	volatile uint32_t DCPLB_ADDR, DCPLB_DATA;
	uint32_t extern_memory;
	size_t i;

	void icplb_add(uint32_t addr, uint32_t data)
	{
	*(ICPLB_ADDR + i) = addr;
	*(ICPLB_DATA + i) = data;
	}
	void dcplb_add(uint32_t addr, uint32_t data)
	{
	*(DCPLB_ADDR + i) = addr;
	*(DCPLB_DATA + i) = data;
	}

	/* populate a few common entries ... we'll let
	* the memory map and cplb exception handler do
	* the rest of the work.
	*/
	i = 0;
	ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
	ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
	DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
	DCPLB_DATA = (uint32_t *)DCPLB_DATA0;

	icplb_add(0xFFA00000, L1_IMEMORY);
	dcplb_add(0xFF800000, L1_DMEMORY);
	++i;
	#if defined(__ADSPBF60x__)
	icplb_add(0x0, 0x0);
	dcplb_add(CONFIG_SYS_FLASH_BASE, SDRAM_EBIU);
	++i;
	#endif

	if (CONFIG_MEM_SIZE) {
	uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
	uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
	mbase &= CPLB_PAGE_MASK;
	mend &= CPLB_PAGE_MASK;

	icplb_add(mbase, SDRAM_IKERNEL);
	dcplb_add(mbase, SDRAM_DKERNEL);
	++i;

	/*
	* If the monitor crosses a 4 meg boundary, we'll need
	* to lock two entries for it. We assume it doesn't
	* cross two 4 meg boundaries ...
	*/
	if (mbase != mend) {
	icplb_add(mend, SDRAM_IKERNEL);
	dcplb_add(mend, SDRAM_DKERNEL);
	++i;
	}
	}

	#ifndef __ADSPBF60x__
	icplb_add(0x20000000, SDRAM_INON_CHBL);
	dcplb_add(0x20000000, SDRAM_EBIU);
	++i;
	#endif

	/* Add entries for the rest of external RAM up to the bootrom */
	extern_memory = 0;

	#ifdef CONFIG_DEBUG_NULL_PTR
	icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) \| PAGE_SIZE_1KB);
	dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) \| PAGE_SIZE_1KB);
	++i;
	icplb_add(extern_memory, SDRAM_IKERNEL);
	dcplb_add(extern_memory, SDRAM_DKERNEL);
	extern_memory += CPLB_PAGE_SIZE;
	++i;
	#endif

	while (i < 16 && extern_memory <
	(CONFIG_SYS_MONITOR_BASE & CPLB_EX_PAGE_MASK)) {
	icplb_add(extern_memory, SDRAM_IGENERIC);
	dcplb_add(extern_memory, SDRAM_DGENERIC);
	extern_memory += CPLB_EX_PAGE_SIZE;
	++i;
	}
	while (i < 16) {
	icplb_add(0, 0);
	dcplb_add(0, 0);
	++i;
	}
	}

	static int global_board_data_init(void)
	{
	#ifndef CONFIG_SYS_GBL_DATA_ADDR
	# define CONFIG_SYS_GBL_DATA_ADDR 0
	#endif
	#ifndef CONFIG_SYS_BD_INFO_ADDR
	# define CONFIG_SYS_BD_INFO_ADDR 0
	#endif

	bd_t *bd;

	if (CONFIG_SYS_GBL_DATA_ADDR) {
	gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
	memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
	} else {
	static gd_t _bfin_gd;
	gd = &_bfin_gd;
	}

	if (CONFIG_SYS_BD_INFO_ADDR) {
	bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR);
	memset(bd, 0, GENERATED_BD_INFO_SIZE);
	} else {
	static bd_t _bfin_bd;
	bd = &_bfin_bd;
	}
	gd->bd = bd;

	bd->bi_r_version = version_string;
	bd->bi_cpu = __stringify(CONFIG_BFIN_CPU);
	bd->bi_board_name = BFIN_BOARD_NAME;
	bd->bi_vco = get_vco();
	bd->bi_cclk = get_cclk();
	bd->bi_sclk = get_sclk();
	bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
	bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;

	return 0;
	}

	/*
	* All attempts to come up with a "common" initialization sequence
	* that works for all boards and architectures failed: some of the
	* requirements are just _too_ different. To get rid of the resulting
	* mess of board dependend #ifdef'ed code we now make the whole
	* initialization sequence configurable to the user.
	*
	* The requirements for any new initalization function is simple: it
	* receives a pointer to the "global data" structure as it's only
	* argument, and returns an integer return code, where 0 means
	* "continue" and != 0 means "fatal error, hang the system".
	*/

	extern int watchdog_init(void);
	extern int exception_init(void);
	extern int irq_init(void);
	extern int timer_init(void);

	void board_init_f(ulong bootflag)
	{
	char buf[32];

	#ifdef CONFIG_BOARD_EARLY_INIT_F
	serial_early_puts("Board early init flash\n");
	board_early_init_f();
	#endif

	serial_early_puts("Init CPLB tables\n");
	init_cplbtables();

	serial_early_puts("Exceptions setup\n");
	exception_init();

	#ifndef CONFIG_ICACHE_OFF
	serial_early_puts("Turn on ICACHE\n");
	icache_enable();
	#endif
	#ifndef CONFIG_DCACHE_OFF
	serial_early_puts("Turn on DCACHE\n");
	dcache_enable();
	#endif

	#ifdef CONFIG_HW_WATCHDOG
	serial_early_puts("Setting up external watchdog\n");
	hw_watchdog_init();
	#endif

	#ifdef DEBUG
	if (GENERATED_GBL_DATA_SIZE < sizeof(*gd))
	hang();
	#endif
	serial_early_puts("Init global data\n");

	global_board_data_init();

	/* Initialize */
	serial_early_puts("IRQ init\n");
	irq_init();
	serial_early_puts("Environment init\n");
	env_init();
	serial_early_puts("Baudrate init\n");
	init_baudrate();
	serial_early_puts("Serial init\n");
	serial_init();
	serial_initialize();
	serial_early_puts("Console init flash\n");
	console_init_f();
	serial_early_puts("End of early debugging\n");
	display_banner();

	checkboard();
	timer_init();

	printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
	printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
	#if defined(__ADSPBF60x__)
	printf("System0: %s MHz, ", strmhz(buf, get_sclk0()));
	printf("System1: %s MHz, ", strmhz(buf, get_sclk1()));
	printf("Dclk: %s MHz\n", strmhz(buf, get_dclk()));
	#else
	printf("System: %s MHz\n", strmhz(buf, get_sclk()));
	#endif

	if (CONFIG_MEM_SIZE) {
	printf("RAM: ");
	print_size(gd->bd->bi_memsize, "\n");
	}

	#if defined(CONFIG_POST)
	post_init_f();
	post_bootmode_init();
	post_run(NULL, POST_ROM \| post_bootmode_get(0));
	#endif

	board_init_r((gd_t *) gd, 0x20000010);
	}

	static void board_net_init_r(bd_t *bd)
	{
	#ifdef CONFIG_BITBANGMII
	bb_miiphy_init();
	#endif
	#ifdef CONFIG_CMD_NET
	printf("Net: ");
	eth_initialize(bd);
	#endif
	}

	void board_init_r(gd_t * id, ulong dest_addr)
	{
	bd_t *bd;
	gd = id;
	gd->flags \|= GD_FLG_RELOC; /* tell others: relocation done */
	bd = gd->bd;

	#if defined(CONFIG_POST)
	post_output_backlog();
	#endif

	/* initialize malloc() area */
	mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);

	#if !defined(CONFIG_SYS_NO_FLASH)
	/* Initialize the flash and protect u-boot by default */
	extern flash_info_t flash_info[];
	puts("Flash: ");
	ulong size = flash_init();
	print_size(size, "\n");
	flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
	CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
	&flash_info[0]);
	bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
	bd->bi_flashsize = size;
	bd->bi_flashoffset = 0;
	#else
	bd->bi_flashstart = 0;
	bd->bi_flashsize = 0;
	bd->bi_flashoffset = 0;
	#endif

	#ifdef CONFIG_CMD_NAND
	puts("NAND: ");
	nand_init(); /* go init the NAND */
	#endif

	#ifdef CONFIG_GENERIC_MMC
	puts("MMC: ");
	mmc_initialize(bd);
	#endif

	#if defined(CONFIG_SYS_I2C)
	i2c_reloc_fixup();
	#endif
	/* relocate environment function pointers etc. */
	env_relocate();

	/* Initialize stdio devices */
	stdio_init();
	jumptable_init();

	/* Initialize the console (after the relocation and devices init) */
	console_init_r();

	#ifdef CONFIG_CMD_KGDB
	puts("KGDB: ");
	kgdb_init();
	#endif

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

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

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

	board_net_init_r(bd);

	display_global_data();

	#if defined(CONFIG_POST)
	if (post_flag)
	post_run(NULL, POST_RAM \| post_bootmode_get(0));
	#endif

	if (CONFIG_MEM_SIZE && bfin_os_log_check()) {
	puts("\nLog buffer from operating system:\n");
	bfin_os_log_dump();
	puts("\n");
	}

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