[people/ms/u-boot.git] / arch / blackfin / lib / board.c

/*
 * 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

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);
	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->board_type);
	printf(" |-baudrate: %lu\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))
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 (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;
		}
	}

	icplb_add(0x20000000, SDRAM_INON_CHBL);
	dcplb_add(0x20000000, SDRAM_EBIU);
	++i;

	/* 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_PAGE_MASK)) {
		icplb_add(extern_memory, SDRAM_IGENERIC);
		dcplb_add(extern_memory, SDRAM_DGENERIC);
		extern_memory += CPLB_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_WATCHDOG
	serial_early_puts("Setting up external watchdog\n");
	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();
#ifdef CONFIG_SERIAL_MULTI
	serial_initialize();
#endif
	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()));
	printf("System: %s MHz\n", strmhz(buf, get_sclk()));

	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

	/* 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();
}

void hang(void)
{
#ifdef CONFIG_STATUS_LED
	status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
	status_led_set(STATUS_LED_CRASH, STATUS_LED_BLINKING);
#endif
	puts("### ERROR ### Please RESET the board ###\n");
	while (1)
		/* If a JTAG emulator is hooked up, we'll automatically trigger
		 * a breakpoint in it.  If one isn't, this is just a NOP.
		 */
		asm("emuexcpt;");
}
Commit	Line	Data
6cb142fa WD	1	/*
	2	* U-boot - board.c First C file to be called contains init routines
	3	*
d5bffeb8	4	* Copyright (c) 2005-2008 Analog Devices Inc.
6cb142fa WD	5	*
	6	* (C) Copyright 2000-2004
	7	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	8	*
d5bffeb8	9	* Licensed under the GPL-2 or later.
6cb142fa WD	10	*/
	11
	12	#include <common.h>
	13	#include <command.h>
52cb4d4f	14	#include <stdio_dev.h>
635f330f	15	#include <serial.h>
6cb142fa	16	#include <environment.h>
d5bffeb8	17	#include <malloc.h>
e54c8209	18	#include <mmc.h>
d5bffeb8	19	#include <net.h>
01815c2d	20	#include <status_led.h>
d5bffeb8 MF	21	#include <version.h>
d5bffeb8 MF	22
3f0606ad	23	#include <asm/cplb.h>
d5bffeb8	24	#include <asm/mach-common/bits/mpu.h>
f19fd87e	25	#include <kgdb.h>
d5bffeb8 MF	26
	27	#ifdef CONFIG_CMD_NAND
	28	#include <nand.h> /* cannot even include nand.h if it isnt configured */
	29	#endif
6cb142fa	30
310cecb8 LCM	31	#ifdef CONFIG_BITBANGMII
	32	#include <miiphy.h>
	33	#endif
	34
9171fc81	35	#if defined(CONFIG_POST)
3f0606ad AL	36	#include <post.h>
	37	int post_flag;
	38	#endif
d87080b7	39
1218abf1 WD	40	DECLARE_GLOBAL_DATA_PTR;
1218abf1 WD	41
d5bffeb8 MF	42	__attribute__((always_inline))
	43	static inline void serial_early_puts(const char *s)
	44	{
	45	#ifdef CONFIG_DEBUG_EARLY_SERIAL
	46	serial_puts("Early: ");
	47	serial_puts(s);
3f0606ad	48	#endif
d5bffeb8	49	}
6cb142fa	50
6cb142fa WD	51	static int display_banner(void)
6cb142fa WD	52	{
bb83875d	53	display_options();
5d89115c	54	printf("CPU: ADSP %s "
fc68f9f8 MF	55	"(Detected Rev: 0.%d) "
fc68f9f8 MF	56	"(%s boot)\n",
5d89115c	57	gd->bd->bi_cpu,
fc68f9f8 MF	58	bfin_revid(),
fc68f9f8 MF	59	get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
d5bffeb8	60	return 0;
6cb142fa WD	61	}
	62
	63	static int init_baudrate(void)
	64	{
c1f485a1	65	gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
d5bffeb8	66	return 0;
6cb142fa WD	67	}
6cb142fa WD	68
6cb142fa WD	69	static void display_global_data(void)
6cb142fa WD	70	{
6cb142fa	71	bd_t *bd;
03f7053f MF	72
	73	#ifndef CONFIG_DEBUG_EARLY_SERIAL
	74	return;
	75	#endif
	76
6cb142fa	77	bd = gd->bd;
f541e1d6 MF	78	printf(" gd: %p\n", gd);
	79	printf(" \|-flags: %lx\n", gd->flags);
	80	printf(" \|-board_type: %lx\n", gd->board_type);
	81	printf(" \|-baudrate: %lu\n", gd->baudrate);
	82	printf(" \|-have_console: %lx\n", gd->have_console);
	83	printf(" \|-ram_size: %lx\n", gd->ram_size);
f541e1d6 MF	84	printf(" \|-env_addr: %lx\n", gd->env_addr);
	85	printf(" \|-env_valid: %lx\n", gd->env_valid);
	86	printf(" \|-jt(%p): %p\n", gd->jt, *(gd->jt));
	87	printf(" \\-bd: %p\n", gd->bd);
d5bffeb8	88	printf(" \|-bi_baudrate: %x\n", bd->bi_baudrate);
f541e1d6 MF	89	printf(" \|-bi_boot_params: %lx\n", bd->bi_boot_params);
	90	printf(" \|-bi_memstart: %lx\n", bd->bi_memstart);
	91	printf(" \|-bi_memsize: %lx\n", bd->bi_memsize);
	92	printf(" \|-bi_flashstart: %lx\n", bd->bi_flashstart);
	93	printf(" \|-bi_flashsize: %lx\n", bd->bi_flashsize);
	94	printf(" \\-bi_flashoffset: %lx\n", bd->bi_flashoffset);
d5bffeb8	95	}
6cb142fa	96
d5bffeb8 MF	97	#define CPLB_PAGE_SIZE (4 * 1024 * 1024)
d5bffeb8 MF	98	#define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
3f0606ad AL	99	void init_cplbtables(void)
3f0606ad AL	100	{
d5bffeb8 MF	101	volatile uint32_t ICPLB_ADDR, ICPLB_DATA;
	102	volatile uint32_t DCPLB_ADDR, DCPLB_DATA;
	103	uint32_t extern_memory;
	104	size_t i;
	105
	106	void icplb_add(uint32_t addr, uint32_t data)
	107	{
	108	*(ICPLB_ADDR + i) = addr;
	109	*(ICPLB_DATA + i) = data;
3f0606ad	110	}
d5bffeb8 MF	111	void dcplb_add(uint32_t addr, uint32_t data)
	112	{
	113	*(DCPLB_ADDR + i) = addr;
	114	*(DCPLB_DATA + i) = data;
3f0606ad AL	115	}
3f0606ad AL	116
d5bffeb8 MF	117	/* populate a few common entries ... we'll let
	118	* the memory map and cplb exception handler do
	119	* the rest of the work.
	120	*/
	121	i = 0;
	122	ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
	123	ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
	124	DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
	125	DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
	126
	127	icplb_add(0xFFA00000, L1_IMEMORY);
	128	dcplb_add(0xFF800000, L1_DMEMORY);
	129	++i;
	130
7527feef MF	131	if (CONFIG_MEM_SIZE) {
	132	uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
	133	uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
	134	mbase &= CPLB_PAGE_MASK;
	135	mend &= CPLB_PAGE_MASK;
	136
	137	icplb_add(mbase, SDRAM_IKERNEL);
	138	dcplb_add(mbase, SDRAM_DKERNEL);
d5bffeb8	139	++i;
7527feef MF	140
	141	/*
	142	* If the monitor crosses a 4 meg boundary, we'll need
	143	* to lock two entries for it. We assume it doesn't
	144	* cross two 4 meg boundaries ...
	145	*/
	146	if (mbase != mend) {
	147	icplb_add(mend, SDRAM_IKERNEL);
	148	dcplb_add(mend, SDRAM_DKERNEL);
	149	++i;
	150	}
d5bffeb8 MF	151	}
	152
	153	icplb_add(0x20000000, SDRAM_INON_CHBL);
	154	dcplb_add(0x20000000, SDRAM_EBIU);
	155	++i;
	156
	157	/* Add entries for the rest of external RAM up to the bootrom */
	158	extern_memory = 0;
	159
	160	#ifdef CONFIG_DEBUG_NULL_PTR
	161	icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) \| PAGE_SIZE_1KB);
	162	dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) \| PAGE_SIZE_1KB);
	163	++i;
	164	icplb_add(extern_memory, SDRAM_IKERNEL);
	165	dcplb_add(extern_memory, SDRAM_DKERNEL);
	166	extern_memory += CPLB_PAGE_SIZE;
	167	++i;
	168	#endif
	169
6d0f6bcf	170	while (i < 16 && extern_memory < (CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK)) {
d5bffeb8 MF	171	icplb_add(extern_memory, SDRAM_IGENERIC);
	172	dcplb_add(extern_memory, SDRAM_DGENERIC);
	173	extern_memory += CPLB_PAGE_SIZE;
	174	++i;
	175	}
	176	while (i < 16) {
	177	icplb_add(0, 0);
	178	dcplb_add(0, 0);
	179	++i;
	180	}
3f0606ad AL	181	}
3f0606ad AL	182
a4932d78 MF	183	static int global_board_data_init(void)
	184	{
	185	#ifndef CONFIG_SYS_GBL_DATA_ADDR
	186	# define CONFIG_SYS_GBL_DATA_ADDR 0
	187	#endif
	188	#ifndef CONFIG_SYS_BD_INFO_ADDR
	189	# define CONFIG_SYS_BD_INFO_ADDR 0
	190	#endif
	191
	192	bd_t *bd;
	193
	194	if (CONFIG_SYS_GBL_DATA_ADDR) {
	195	gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
	196	memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
	197	} else {
	198	static gd_t _bfin_gd;
	199	gd = &_bfin_gd;
	200	}
	201
	202	if (CONFIG_SYS_BD_INFO_ADDR) {
	203	bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR);
	204	memset(bd, 0, GENERATED_BD_INFO_SIZE);
	205	} else {
	206	static bd_t _bfin_bd;
	207	bd = &_bfin_bd;
	208	}
	209	gd->bd = bd;
	210
	211	bd->bi_r_version = version_string;
5368c55d	212	bd->bi_cpu = __stringify(CONFIG_BFIN_CPU);
a4932d78 MF	213	bd->bi_board_name = BFIN_BOARD_NAME;
	214	bd->bi_vco = get_vco();
	215	bd->bi_cclk = get_cclk();
	216	bd->bi_sclk = get_sclk();
	217	bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
	218	bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
	219
	220	return 0;
	221	}
	222
6cb142fa WD	223	/*
	224	* All attempts to come up with a "common" initialization sequence
	225	* that works for all boards and architectures failed: some of the
	226	* requirements are just _too_ different. To get rid of the resulting
	227	* mess of board dependend #ifdef'ed code we now make the whole
	228	* initialization sequence configurable to the user.
	229	*
	230	* The requirements for any new initalization function is simple: it
	231	* receives a pointer to the "global data" structure as it's only
	232	* argument, and returns an integer return code, where 0 means
	233	* "continue" and != 0 means "fatal error, hang the system".
	234	*/
	235
0c080aa7	236	extern int watchdog_init(void);
d5bffeb8 MF	237	extern int exception_init(void);
d5bffeb8 MF	238	extern int irq_init(void);
d5bffeb8 MF	239	extern int timer_init(void);
d5bffeb8 MF	240
6cb142fa WD	241	void board_init_f(ulong bootflag)
6cb142fa WD	242	{
6dadc919	243	char buf[32];
3f0606ad	244
d5bffeb8 MF	245	#ifdef CONFIG_BOARD_EARLY_INIT_F
	246	serial_early_puts("Board early init flash\n");
	247	board_early_init_f();
	248	#endif
	249
	250	serial_early_puts("Init CPLB tables\n");
3f0606ad	251	init_cplbtables();
6cb142fa	252
d5bffeb8 MF	253	serial_early_puts("Exceptions setup\n");
	254	exception_init();
	255
	256	#ifndef CONFIG_ICACHE_OFF
	257	serial_early_puts("Turn on ICACHE\n");
	258	icache_enable();
	259	#endif
	260	#ifndef CONFIG_DCACHE_OFF
	261	serial_early_puts("Turn on DCACHE\n");
	262	dcache_enable();
	263	#endif
	264
0c080aa7 MF	265	#ifdef CONFIG_WATCHDOG
	266	serial_early_puts("Setting up external watchdog\n");
	267	watchdog_init();
	268	#endif
	269
78a0ba7d	270	#ifdef DEBUG
25ddd1fb	271	if (GENERATED_GBL_DATA_SIZE < sizeof(*gd))
78a0ba7d MF	272	hang();
78a0ba7d MF	273	#endif
d5bffeb8	274	serial_early_puts("Init global data\n");
6cb142fa	275
a4932d78	276	global_board_data_init();
d5bffeb8	277
6cb142fa	278	/* Initialize */
d5bffeb8	279	serial_early_puts("IRQ init\n");
9171fc81	280	irq_init();
d5bffeb8 MF	281	serial_early_puts("Environment init\n");
	282	env_init();
	283	serial_early_puts("Baudrate init\n");
	284	init_baudrate();
	285	serial_early_puts("Serial init\n");
	286	serial_init();
635f330f MF	287	#ifdef CONFIG_SERIAL_MULTI
	288	serial_initialize();
	289	#endif
d5bffeb8	290	serial_early_puts("Console init flash\n");
6cb142fa	291	console_init_f();
d5bffeb8 MF	292	serial_early_puts("End of early debugging\n");
d5bffeb8 MF	293	display_banner();
3f0606ad	294
6cb142fa	295	checkboard();
6cb142fa	296	timer_init();
d5bffeb8	297
6dadc919 MF	298	printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
	299	printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
	300	printf("System: %s MHz\n", strmhz(buf, get_sclk()));
d5bffeb8	301
7d69dfd2 MF	302	if (CONFIG_MEM_SIZE) {
7d69dfd2 MF	303	printf("RAM: ");
a4932d78	304	print_size(gd->bd->bi_memsize, "\n");
7d69dfd2 MF	305	}
7d69dfd2 MF	306
9171fc81	307	#if defined(CONFIG_POST)
3f0606ad AL	308	post_init_f();
	309	post_bootmode_init();
	310	post_run(NULL, POST_ROM \| post_bootmode_get(0));
	311	#endif
d5bffeb8	312
6cb142fa WD	313	board_init_r((gd_t *) gd, 0x20000010);
	314	}
	315
8996d160 MF	316	static void board_net_init_r(bd_t *bd)
8996d160 MF	317	{
310cecb8 LCM	318	#ifdef CONFIG_BITBANGMII
	319	bb_miiphy_init();
	320	#endif
8996d160	321	#ifdef CONFIG_CMD_NET
8996d160	322	printf("Net: ");
de30122b	323	eth_initialize(bd);
8996d160 MF	324	#endif
	325	}
	326
6cb142fa WD	327	void board_init_r(gd_t * id, ulong dest_addr)
6cb142fa WD	328	{
6cb142fa	329	bd_t *bd;
6cb142fa WD	330	gd = id;
	331	gd->flags \|= GD_FLG_RELOC; /* tell others: relocation done */
	332	bd = gd->bd;
	333
9171fc81	334	#if defined(CONFIG_POST)
3f0606ad	335	post_output_backlog();
3f0606ad AL	336	#endif
3f0606ad AL	337
c790b04d	338	/* initialize malloc() area */
a483a167	339	mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
c790b04d	340
6d0f6bcf	341	#if !defined(CONFIG_SYS_NO_FLASH)
b6edc719	342	/* Initialize the flash and protect u-boot by default */
d5bffeb8	343	extern flash_info_t flash_info[];
d5bffeb8	344	puts("Flash: ");
45c48953	345	ulong size = flash_init();
d5bffeb8	346	print_size(size, "\n");
6d0f6bcf	347	flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
b6edc719 MF	348	CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
b6edc719 MF	349	&flash_info[0]);
6d0f6bcf	350	bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
6cb142fa WD	351	bd->bi_flashsize = size;
	352	bd->bi_flashoffset = 0;
	353	#else
	354	bd->bi_flashstart = 0;
	355	bd->bi_flashsize = 0;
	356	bd->bi_flashoffset = 0;
	357	#endif
6cb142fa	358
39782727 MF	359	#ifdef CONFIG_CMD_NAND
	360	puts("NAND: ");
	361	nand_init(); /* go init the NAND */
	362	#endif
	363
e54c8209	364	#ifdef CONFIG_GENERIC_MMC
d3c07a5d	365	puts("MMC: ");
e54c8209 CC	366	mmc_initialize(bd);
	367	#endif
	368
6cb142fa WD	369	/* relocate environment function pointers etc. */
	370	env_relocate();
	371
52cb4d4f JCPV	372	/* Initialize stdio devices */
52cb4d4f JCPV	373	stdio_init();
6cb142fa WD	374	jumptable_init();
	375
	376	/* Initialize the console (after the relocation and devices init) */
	377	console_init_r();
	378
f19fd87e RG	379	#ifdef CONFIG_CMD_KGDB
	380	puts("KGDB: ");
	381	kgdb_init();
	382	#endif
	383
01815c2d MF	384	#ifdef CONFIG_STATUS_LED
	385	status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
	386	status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
	387	#endif
	388
6cb142fa	389	/* Initialize from environment */
c1f485a1	390	load_addr = getenv_ulong("loadaddr", 16, load_addr);
3f0606ad	391
6cb142fa WD	392	#if defined(CONFIG_MISC_INIT_R)
	393	/* miscellaneous platform dependent initialisations */
	394	misc_init_r();
	395	#endif
	396
8996d160	397	board_net_init_r(bd);
6cb142fa	398
3f0606ad	399	display_global_data();
3f0606ad	400
9171fc81	401	#if defined(CONFIG_POST)
3f0606ad AL	402	if (post_flag)
3f0606ad AL	403	post_run(NULL, POST_RAM \| post_bootmode_get(0));
6cb142fa WD	404	#endif
6cb142fa WD	405
05e7825e	406	if (CONFIG_MEM_SIZE && bfin_os_log_check()) {
909878fd MF	407	puts("\nLog buffer from operating system:\n");
	408	bfin_os_log_dump();
	409	puts("\n");
	410	}
	411
6cb142fa	412	/* main_loop() can return to retry autoboot, if so just run it again. */
d5bffeb8	413	for (;;)
6cb142fa	414	main_loop();
6cb142fa WD	415	}
6cb142fa WD	416
6cb142fa WD	417	void hang(void)
6cb142fa WD	418	{
01815c2d MF	419	#ifdef CONFIG_STATUS_LED
	420	status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
	421	status_led_set(STATUS_LED_CRASH, STATUS_LED_BLINKING);
	422	#endif
6cb142fa	423	puts("### ERROR ### Please RESET the board ###\n");
d5bffeb8 MF	424	while (1)
	425	/* If a JTAG emulator is hooked up, we'll automatically trigger
	426	* a breakpoint in it. If one isn't, this is just a NOP.
	427	*/
	428	asm("emuexcpt;");
6cb142fa	429	}