[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 <environment.h>
#include <malloc.h>
#include <mmc.h>
#include <net.h>
#include <timestamp.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;

const char version_string[] = U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME")";

__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)
{
	printf("\n\n%s\n\n", version_string);
	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)
{
	char baudrate[15];
	int i = getenv_f("baudrate", baudrate, sizeof(baudrate));
	gd->bd->bi_baudrate = gd->baudrate = (i > 0)
	    ? simple_strtoul(baudrate, NULL, 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_ip_addr: %lx\n", bd->bi_ip_addr);
	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;
	}
}

/*
 * 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)
{
	ulong addr;
	bd_t *bd;
	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");
	gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
	memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);

	/* Board data initialization */
	addr = (CONFIG_SYS_GBL_DATA_ADDR + sizeof(gd_t));

	/* Align to 4 byte boundary */
	addr &= ~(4 - 1);
	bd = (bd_t *) addr;
	gd->bd = bd;
	memset((void *)bd, 0, sizeof(bd_t));

	bd->bi_r_version = version_string;
	bd->bi_cpu = MK_STR(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;

	/* 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_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(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
	char *s;

	if ((s = getenv("bootfile")) != NULL)
		copy_filename(BootFile, s, sizeof(BootFile));

	bd->bi_ip_addr = getenv_IPaddr("ipaddr");

	printf("Net:   ");
	eth_initialize(gd->bd);
#endif
}

void board_init_r(gd_t * id, ulong dest_addr)
{
	char *s;
	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 */
	if ((s = getenv("loadaddr")) != NULL)
		load_addr = simple_strtoul(s, NULL, 16);

#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 (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>
6cb142fa	15	#include <environment.h>
d5bffeb8	16	#include <malloc.h>
e54c8209	17	#include <mmc.h>
d5bffeb8	18	#include <net.h>
561858ee	19	#include <timestamp.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
561858ee	42	const char version_string[] = U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME")";
d5bffeb8 MF	43
	44	__attribute__((always_inline))
	45	static inline void serial_early_puts(const char *s)
	46	{
	47	#ifdef CONFIG_DEBUG_EARLY_SERIAL
	48	serial_puts("Early: ");
	49	serial_puts(s);
3f0606ad	50	#endif
d5bffeb8	51	}
6cb142fa	52
6cb142fa WD	53	static int display_banner(void)
6cb142fa WD	54	{
d5bffeb8	55	printf("\n\n%s\n\n", version_string);
5d89115c	56	printf("CPU: ADSP %s "
fc68f9f8 MF	57	"(Detected Rev: 0.%d) "
fc68f9f8 MF	58	"(%s boot)\n",
5d89115c	59	gd->bd->bi_cpu,
fc68f9f8 MF	60	bfin_revid(),
fc68f9f8 MF	61	get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
d5bffeb8	62	return 0;
6cb142fa WD	63	}
	64
	65	static int init_baudrate(void)
	66	{
d5bffeb8	67	char baudrate[15];
cdb74977	68	int i = getenv_f("baudrate", baudrate, sizeof(baudrate));
6cb142fa	69	gd->bd->bi_baudrate = gd->baudrate = (i > 0)
d5bffeb8	70	? simple_strtoul(baudrate, NULL, 10)
3f0606ad	71	: CONFIG_BAUDRATE;
d5bffeb8	72	return 0;
6cb142fa WD	73	}
6cb142fa WD	74
6cb142fa WD	75	static void display_global_data(void)
6cb142fa WD	76	{
6cb142fa	77	bd_t *bd;
03f7053f MF	78
	79	#ifndef CONFIG_DEBUG_EARLY_SERIAL
	80	return;
	81	#endif
	82
6cb142fa	83	bd = gd->bd;
f541e1d6 MF	84	printf(" gd: %p\n", gd);
	85	printf(" \|-flags: %lx\n", gd->flags);
	86	printf(" \|-board_type: %lx\n", gd->board_type);
	87	printf(" \|-baudrate: %lu\n", gd->baudrate);
	88	printf(" \|-have_console: %lx\n", gd->have_console);
	89	printf(" \|-ram_size: %lx\n", gd->ram_size);
f541e1d6 MF	90	printf(" \|-env_addr: %lx\n", gd->env_addr);
	91	printf(" \|-env_valid: %lx\n", gd->env_valid);
	92	printf(" \|-jt(%p): %p\n", gd->jt, *(gd->jt));
	93	printf(" \\-bd: %p\n", gd->bd);
d5bffeb8	94	printf(" \|-bi_baudrate: %x\n", bd->bi_baudrate);
f541e1d6 MF	95	printf(" \|-bi_ip_addr: %lx\n", bd->bi_ip_addr);
	96	printf(" \|-bi_boot_params: %lx\n", bd->bi_boot_params);
	97	printf(" \|-bi_memstart: %lx\n", bd->bi_memstart);
	98	printf(" \|-bi_memsize: %lx\n", bd->bi_memsize);
	99	printf(" \|-bi_flashstart: %lx\n", bd->bi_flashstart);
	100	printf(" \|-bi_flashsize: %lx\n", bd->bi_flashsize);
	101	printf(" \\-bi_flashoffset: %lx\n", bd->bi_flashoffset);
d5bffeb8	102	}
6cb142fa	103
d5bffeb8 MF	104	#define CPLB_PAGE_SIZE (4 * 1024 * 1024)
d5bffeb8 MF	105	#define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
3f0606ad AL	106	void init_cplbtables(void)
3f0606ad AL	107	{
d5bffeb8 MF	108	volatile uint32_t ICPLB_ADDR, ICPLB_DATA;
	109	volatile uint32_t DCPLB_ADDR, DCPLB_DATA;
	110	uint32_t extern_memory;
	111	size_t i;
	112
	113	void icplb_add(uint32_t addr, uint32_t data)
	114	{
	115	*(ICPLB_ADDR + i) = addr;
	116	*(ICPLB_DATA + i) = data;
3f0606ad	117	}
d5bffeb8 MF	118	void dcplb_add(uint32_t addr, uint32_t data)
	119	{
	120	*(DCPLB_ADDR + i) = addr;
	121	*(DCPLB_DATA + i) = data;
3f0606ad AL	122	}
3f0606ad AL	123
d5bffeb8 MF	124	/* populate a few common entries ... we'll let
	125	* the memory map and cplb exception handler do
	126	* the rest of the work.
	127	*/
	128	i = 0;
	129	ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
	130	ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
	131	DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
	132	DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
	133
	134	icplb_add(0xFFA00000, L1_IMEMORY);
	135	dcplb_add(0xFF800000, L1_DMEMORY);
	136	++i;
	137
7527feef MF	138	if (CONFIG_MEM_SIZE) {
	139	uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
	140	uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
	141	mbase &= CPLB_PAGE_MASK;
	142	mend &= CPLB_PAGE_MASK;
	143
	144	icplb_add(mbase, SDRAM_IKERNEL);
	145	dcplb_add(mbase, SDRAM_DKERNEL);
d5bffeb8	146	++i;
7527feef MF	147
	148	/*
	149	* If the monitor crosses a 4 meg boundary, we'll need
	150	* to lock two entries for it. We assume it doesn't
	151	* cross two 4 meg boundaries ...
	152	*/
	153	if (mbase != mend) {
	154	icplb_add(mend, SDRAM_IKERNEL);
	155	dcplb_add(mend, SDRAM_DKERNEL);
	156	++i;
	157	}
d5bffeb8 MF	158	}
	159
	160	icplb_add(0x20000000, SDRAM_INON_CHBL);
	161	dcplb_add(0x20000000, SDRAM_EBIU);
	162	++i;
	163
	164	/* Add entries for the rest of external RAM up to the bootrom */
	165	extern_memory = 0;
	166
	167	#ifdef CONFIG_DEBUG_NULL_PTR
	168	icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) \| PAGE_SIZE_1KB);
	169	dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) \| PAGE_SIZE_1KB);
	170	++i;
	171	icplb_add(extern_memory, SDRAM_IKERNEL);
	172	dcplb_add(extern_memory, SDRAM_DKERNEL);
	173	extern_memory += CPLB_PAGE_SIZE;
	174	++i;
	175	#endif
	176
6d0f6bcf	177	while (i < 16 && extern_memory < (CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK)) {
d5bffeb8 MF	178	icplb_add(extern_memory, SDRAM_IGENERIC);
	179	dcplb_add(extern_memory, SDRAM_DGENERIC);
	180	extern_memory += CPLB_PAGE_SIZE;
	181	++i;
	182	}
	183	while (i < 16) {
	184	icplb_add(0, 0);
	185	dcplb_add(0, 0);
	186	++i;
	187	}
3f0606ad AL	188	}
3f0606ad AL	189
6cb142fa WD	190	/*
	191	* All attempts to come up with a "common" initialization sequence
	192	* that works for all boards and architectures failed: some of the
	193	* requirements are just _too_ different. To get rid of the resulting
	194	* mess of board dependend #ifdef'ed code we now make the whole
	195	* initialization sequence configurable to the user.
	196	*
	197	* The requirements for any new initalization function is simple: it
	198	* receives a pointer to the "global data" structure as it's only
	199	* argument, and returns an integer return code, where 0 means
	200	* "continue" and != 0 means "fatal error, hang the system".
	201	*/
	202
0c080aa7	203	extern int watchdog_init(void);
d5bffeb8 MF	204	extern int exception_init(void);
d5bffeb8 MF	205	extern int irq_init(void);
d5bffeb8 MF	206	extern int timer_init(void);
d5bffeb8 MF	207
6cb142fa WD	208	void board_init_f(ulong bootflag)
6cb142fa WD	209	{
6cb142fa WD	210	ulong addr;
6cb142fa WD	211	bd_t *bd;
6dadc919	212	char buf[32];
3f0606ad	213
d5bffeb8 MF	214	#ifdef CONFIG_BOARD_EARLY_INIT_F
	215	serial_early_puts("Board early init flash\n");
	216	board_early_init_f();
	217	#endif
	218
	219	serial_early_puts("Init CPLB tables\n");
3f0606ad	220	init_cplbtables();
6cb142fa	221
d5bffeb8 MF	222	serial_early_puts("Exceptions setup\n");
	223	exception_init();
	224
	225	#ifndef CONFIG_ICACHE_OFF
	226	serial_early_puts("Turn on ICACHE\n");
	227	icache_enable();
	228	#endif
	229	#ifndef CONFIG_DCACHE_OFF
	230	serial_early_puts("Turn on DCACHE\n");
	231	dcache_enable();
	232	#endif
	233
0c080aa7 MF	234	#ifdef CONFIG_WATCHDOG
	235	serial_early_puts("Setting up external watchdog\n");
	236	watchdog_init();
	237	#endif
	238
78a0ba7d	239	#ifdef DEBUG
25ddd1fb	240	if (GENERATED_GBL_DATA_SIZE < sizeof(*gd))
78a0ba7d MF	241	hang();
78a0ba7d MF	242	#endif
d5bffeb8	243	serial_early_puts("Init global data\n");
6d0f6bcf	244	gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
25ddd1fb	245	memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
6cb142fa WD	246
6cb142fa WD	247	/* Board data initialization */
6d0f6bcf	248	addr = (CONFIG_SYS_GBL_DATA_ADDR + sizeof(gd_t));
6cb142fa WD	249
6cb142fa WD	250	/* Align to 4 byte boundary */
8e7b703a	251	addr &= ~(4 - 1);
3f0606ad	252	bd = (bd_t *) addr;
6cb142fa	253	gd->bd = bd;
3f0606ad	254	memset((void *)bd, 0, sizeof(bd_t));
6cb142fa	255
d5bffeb8	256	bd->bi_r_version = version_string;
fbcf8e8c	257	bd->bi_cpu = MK_STR(CONFIG_BFIN_CPU);
d5bffeb8 MF	258	bd->bi_board_name = BFIN_BOARD_NAME;
	259	bd->bi_vco = get_vco();
	260	bd->bi_cclk = get_cclk();
	261	bd->bi_sclk = get_sclk();
fa45bd49 MF	262	bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
fa45bd49 MF	263	bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
d5bffeb8	264
6cb142fa	265	/* Initialize */
d5bffeb8	266	serial_early_puts("IRQ init\n");
9171fc81	267	irq_init();
d5bffeb8 MF	268	serial_early_puts("Environment init\n");
	269	env_init();
	270	serial_early_puts("Baudrate init\n");
	271	init_baudrate();
	272	serial_early_puts("Serial init\n");
	273	serial_init();
	274	serial_early_puts("Console init flash\n");
6cb142fa	275	console_init_f();
d5bffeb8 MF	276	serial_early_puts("End of early debugging\n");
d5bffeb8 MF	277	display_banner();
3f0606ad	278
6cb142fa	279	checkboard();
6cb142fa	280	timer_init();
d5bffeb8	281
6dadc919 MF	282	printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
	283	printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
	284	printf("System: %s MHz\n", strmhz(buf, get_sclk()));
d5bffeb8	285
7d69dfd2 MF	286	if (CONFIG_MEM_SIZE) {
	287	printf("RAM: ");
	288	print_size(bd->bi_memsize, "\n");
	289	}
	290
9171fc81	291	#if defined(CONFIG_POST)
3f0606ad AL	292	post_init_f();
	293	post_bootmode_init();
	294	post_run(NULL, POST_ROM \| post_bootmode_get(0));
	295	#endif
d5bffeb8	296
6cb142fa WD	297	board_init_r((gd_t *) gd, 0x20000010);
	298	}
	299
8996d160 MF	300	static void board_net_init_r(bd_t *bd)
8996d160 MF	301	{
310cecb8 LCM	302	#ifdef CONFIG_BITBANGMII
	303	bb_miiphy_init();
	304	#endif
8996d160	305	#ifdef CONFIG_CMD_NET
8996d160 MF	306	char *s;
	307
	308	if ((s = getenv("bootfile")) != NULL)
	309	copy_filename(BootFile, s, sizeof(BootFile));
	310
	311	bd->bi_ip_addr = getenv_IPaddr("ipaddr");
	312
	313	printf("Net: ");
	314	eth_initialize(gd->bd);
8996d160 MF	315	#endif
	316	}
	317
6cb142fa WD	318	void board_init_r(gd_t * id, ulong dest_addr)
6cb142fa WD	319	{
d5bffeb8	320	char *s;
6cb142fa	321	bd_t *bd;
6cb142fa WD	322	gd = id;
	323	gd->flags \|= GD_FLG_RELOC; /* tell others: relocation done */
	324	bd = gd->bd;
	325
9171fc81	326	#if defined(CONFIG_POST)
3f0606ad	327	post_output_backlog();
3f0606ad AL	328	#endif
3f0606ad AL	329
c790b04d	330	/* initialize malloc() area */
a483a167	331	mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
c790b04d	332
6d0f6bcf	333	#if !defined(CONFIG_SYS_NO_FLASH)
b6edc719	334	/* Initialize the flash and protect u-boot by default */
d5bffeb8	335	extern flash_info_t flash_info[];
d5bffeb8	336	puts("Flash: ");
45c48953	337	ulong size = flash_init();
d5bffeb8	338	print_size(size, "\n");
6d0f6bcf	339	flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
b6edc719 MF	340	CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
b6edc719 MF	341	&flash_info[0]);
6d0f6bcf	342	bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
6cb142fa WD	343	bd->bi_flashsize = size;
	344	bd->bi_flashoffset = 0;
	345	#else
	346	bd->bi_flashstart = 0;
	347	bd->bi_flashsize = 0;
	348	bd->bi_flashoffset = 0;
	349	#endif
6cb142fa	350
39782727 MF	351	#ifdef CONFIG_CMD_NAND
	352	puts("NAND: ");
	353	nand_init(); /* go init the NAND */
	354	#endif
	355
e54c8209	356	#ifdef CONFIG_GENERIC_MMC
d3c07a5d	357	puts("MMC: ");
e54c8209 CC	358	mmc_initialize(bd);
	359	#endif
	360
6cb142fa WD	361	/* relocate environment function pointers etc. */
	362	env_relocate();
	363
52cb4d4f JCPV	364	/* Initialize stdio devices */
52cb4d4f JCPV	365	stdio_init();
6cb142fa WD	366	jumptable_init();
	367
	368	/* Initialize the console (after the relocation and devices init) */
	369	console_init_r();
	370
f19fd87e RG	371	#ifdef CONFIG_CMD_KGDB
	372	puts("KGDB: ");
	373	kgdb_init();
	374	#endif
	375
01815c2d MF	376	#ifdef CONFIG_STATUS_LED
	377	status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
	378	status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
	379	#endif
	380
6cb142fa	381	/* Initialize from environment */
d5bffeb8	382	if ((s = getenv("loadaddr")) != NULL)
6cb142fa	383	load_addr = simple_strtoul(s, NULL, 16);
3f0606ad	384
6cb142fa WD	385	#if defined(CONFIG_MISC_INIT_R)
	386	/* miscellaneous platform dependent initialisations */
	387	misc_init_r();
	388	#endif
	389
8996d160	390	board_net_init_r(bd);
6cb142fa	391
3f0606ad	392	display_global_data();
3f0606ad	393
9171fc81	394	#if defined(CONFIG_POST)
3f0606ad AL	395	if (post_flag)
3f0606ad AL	396	post_run(NULL, POST_RAM \| post_bootmode_get(0));
6cb142fa WD	397	#endif
6cb142fa WD	398
909878fd MF	399	if (bfin_os_log_check()) {
	400	puts("\nLog buffer from operating system:\n");
	401	bfin_os_log_dump();
	402	puts("\n");
	403	}
	404
6cb142fa	405	/* main_loop() can return to retry autoboot, if so just run it again. */
d5bffeb8	406	for (;;)
6cb142fa	407	main_loop();
6cb142fa WD	408	}
6cb142fa WD	409
6cb142fa WD	410	void hang(void)
6cb142fa WD	411	{
01815c2d MF	412	#ifdef CONFIG_STATUS_LED
	413	status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
	414	status_led_set(STATUS_LED_CRASH, STATUS_LED_BLINKING);
	415	#endif
6cb142fa	416	puts("### ERROR ### Please RESET the board ###\n");
d5bffeb8 MF	417	while (1)
	418	/* If a JTAG emulator is hooked up, we'll automatically trigger
	419	* a breakpoint in it. If one isn't, this is just a NOP.
	420	*/
	421	asm("emuexcpt;");
6cb142fa	422	}