[people/ms/u-boot.git] / lib_blackfin / 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 <net.h>
#include <timestamp.h>
#include <status_led.h>
#include <version.h>

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

#ifdef CONFIG_CMD_NAND
#include <nand.h>	/* cannot even include nand.h if it isnt configured */
#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 void *mem_malloc_start, *mem_malloc_end, *mem_malloc_brk;

static void mem_malloc_init(void)
{
	mem_malloc_start = (void *)CONFIG_SYS_MALLOC_BASE;
	mem_malloc_end = (void *)(CONFIG_SYS_MALLOC_BASE + CONFIG_SYS_MALLOC_LEN);
	mem_malloc_brk = mem_malloc_start;
	memset(mem_malloc_start, 0, mem_malloc_end - mem_malloc_start);
}

void *sbrk(ptrdiff_t increment)
{
	void *old = mem_malloc_brk;
	void *new = old + increment;

	if (new < mem_malloc_start || new > mem_malloc_end)
		return NULL;

	mem_malloc_brk = new;

	return old;
}

static int display_banner(void)
{
	printf("\n\n%s\n\n", version_string);
	printf("CPU:   ADSP " MK_STR(CONFIG_BFIN_CPU) " "
		"(Detected Rev: 0.%d) "
		"(%s boot)\n",
		bfin_revid(),
		get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
	return 0;
}

static int init_baudrate(void)
{
	char baudrate[15];
	int i = getenv_r("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)
{
#ifdef CONFIG_DEBUG_EARLY_SERIAL
	bd_t *bd;
	bd = gd->bd;
	printf(" gd: %x\n", gd);
	printf(" |-flags: %x\n", gd->flags);
	printf(" |-board_type: %x\n", gd->board_type);
	printf(" |-baudrate: %i\n", gd->baudrate);
	printf(" |-have_console: %x\n", gd->have_console);
	printf(" |-ram_size: %x\n", gd->ram_size);
	printf(" |-reloc_off: %x\n", gd->reloc_off);
	printf(" |-env_addr: %x\n", gd->env_addr);
	printf(" |-env_valid: %x\n", gd->env_valid);
	printf(" |-jt(%x): %x\n", gd->jt, *(gd->jt));
	printf(" \\-bd: %x\n", gd->bd);
	printf("   |-bi_baudrate: %x\n", bd->bi_baudrate);
	printf("   |-bi_ip_addr: %x\n", bd->bi_ip_addr);
	printf("   |-bi_boot_params: %x\n", bd->bi_boot_params);
	printf("   |-bi_memstart: %x\n", bd->bi_memstart);
	printf("   |-bi_memsize: %x\n", bd->bi_memsize);
	printf("   |-bi_flashstart: %x\n", bd->bi_flashstart);
	printf("   |-bi_flashsize: %x\n", bd->bi_flashsize);
	printf("   \\-bi_flashoffset: %x\n", bd->bi_flashoffset);
#endif
}

#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;

	icplb_add(CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK, SDRAM_IKERNEL);
	dcplb_add(CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK, SDRAM_DKERNEL);
	++i;

	/* If the monitor crosses a 4 meg boundary, we'll need
	 * to lock two entries for it.
	 */
	if ((CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK) != ((CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN) & CPLB_PAGE_MASK)) {
		icplb_add((CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN) & CPLB_PAGE_MASK, SDRAM_IKERNEL);
		dcplb_add((CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN) & CPLB_PAGE_MASK, 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 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 DEBUG
	if (CONFIG_SYS_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, CONFIG_SYS_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();

	/* 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()));

	printf("RAM:   ");
	print_size(initdram(0), "\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_CMD_NET
	uchar enetaddr[6];
	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);

	eth_getenv_enetaddr("ethaddr", enetaddr);
	printf("MAC:   %pM\n", enetaddr);
#endif
}

void board_init_r(gd_t * id, ulong dest_addr)
{
	extern void malloc_bin_reloc(void);
	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();
	post_reloc();
#endif

	/* initialize malloc() area */
	mem_malloc_init();
	malloc_bin_reloc();

#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

	/* 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_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 MF	16	#include <malloc.h>
d5bffeb8 MF	17	#include <net.h>
561858ee	18	#include <timestamp.h>
01815c2d	19	#include <status_led.h>
d5bffeb8 MF	20	#include <version.h>
d5bffeb8 MF	21
3f0606ad	22	#include <asm/cplb.h>
d5bffeb8 MF	23	#include <asm/mach-common/bits/mpu.h>
	24
	25	#ifdef CONFIG_CMD_NAND
	26	#include <nand.h> /* cannot even include nand.h if it isnt configured */
	27	#endif
6cb142fa	28
9171fc81	29	#if defined(CONFIG_POST)
3f0606ad AL	30	#include <post.h>
	31	int post_flag;
	32	#endif
d87080b7	33
1218abf1 WD	34	DECLARE_GLOBAL_DATA_PTR;
1218abf1 WD	35
561858ee	36	const char version_string[] = U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME")";
d5bffeb8 MF	37
	38	__attribute__((always_inline))
	39	static inline void serial_early_puts(const char *s)
	40	{
	41	#ifdef CONFIG_DEBUG_EARLY_SERIAL
	42	serial_puts("Early: ");
	43	serial_puts(s);
3f0606ad	44	#endif
d5bffeb8	45	}
6cb142fa	46
d5bffeb8 MF	47	static void mem_malloc_start, mem_malloc_end, *mem_malloc_brk;
d5bffeb8 MF	48
6cb142fa WD	49	static void mem_malloc_init(void)
6cb142fa WD	50	{
6d0f6bcf JCPV	51	mem_malloc_start = (void *)CONFIG_SYS_MALLOC_BASE;
6d0f6bcf JCPV	52	mem_malloc_end = (void *)(CONFIG_SYS_MALLOC_BASE + CONFIG_SYS_MALLOC_LEN);
6cb142fa	53	mem_malloc_brk = mem_malloc_start;
d5bffeb8	54	memset(mem_malloc_start, 0, mem_malloc_end - mem_malloc_start);
6cb142fa WD	55	}
	56
	57	void *sbrk(ptrdiff_t increment)
	58	{
d5bffeb8 MF	59	void *old = mem_malloc_brk;
	60	void *new = old + increment;
	61
	62	if (new < mem_malloc_start \|\| new > mem_malloc_end)
	63	return NULL;
6cb142fa	64
6cb142fa WD	65	mem_malloc_brk = new;
6cb142fa WD	66
d5bffeb8	67	return old;
6cb142fa WD	68	}
	69
	70	static int display_banner(void)
	71	{
d5bffeb8	72	printf("\n\n%s\n\n", version_string);
fc68f9f8 MF	73	printf("CPU: ADSP " MK_STR(CONFIG_BFIN_CPU) " "
	74	"(Detected Rev: 0.%d) "
	75	"(%s boot)\n",
	76	bfin_revid(),
	77	get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
d5bffeb8	78	return 0;
6cb142fa WD	79	}
	80
	81	static int init_baudrate(void)
	82	{
d5bffeb8 MF	83	char baudrate[15];
d5bffeb8 MF	84	int i = getenv_r("baudrate", baudrate, sizeof(baudrate));
6cb142fa	85	gd->bd->bi_baudrate = gd->baudrate = (i > 0)
d5bffeb8	86	? simple_strtoul(baudrate, NULL, 10)
3f0606ad	87	: CONFIG_BAUDRATE;
d5bffeb8	88	return 0;
6cb142fa WD	89	}
6cb142fa WD	90
6cb142fa WD	91	static void display_global_data(void)
6cb142fa WD	92	{
d5bffeb8	93	#ifdef CONFIG_DEBUG_EARLY_SERIAL
6cb142fa WD	94	bd_t *bd;
6cb142fa WD	95	bd = gd->bd;
d5bffeb8 MF	96	printf(" gd: %x\n", gd);
	97	printf(" \|-flags: %x\n", gd->flags);
	98	printf(" \|-board_type: %x\n", gd->board_type);
	99	printf(" \|-baudrate: %i\n", gd->baudrate);
	100	printf(" \|-have_console: %x\n", gd->have_console);
	101	printf(" \|-ram_size: %x\n", gd->ram_size);
	102	printf(" \|-reloc_off: %x\n", gd->reloc_off);
	103	printf(" \|-env_addr: %x\n", gd->env_addr);
	104	printf(" \|-env_valid: %x\n", gd->env_valid);
	105	printf(" \|-jt(%x): %x\n", gd->jt, *(gd->jt));
	106	printf(" \\-bd: %x\n", gd->bd);
	107	printf(" \|-bi_baudrate: %x\n", bd->bi_baudrate);
	108	printf(" \|-bi_ip_addr: %x\n", bd->bi_ip_addr);
d5bffeb8 MF	109	printf(" \|-bi_boot_params: %x\n", bd->bi_boot_params);
	110	printf(" \|-bi_memstart: %x\n", bd->bi_memstart);
	111	printf(" \|-bi_memsize: %x\n", bd->bi_memsize);
	112	printf(" \|-bi_flashstart: %x\n", bd->bi_flashstart);
	113	printf(" \|-bi_flashsize: %x\n", bd->bi_flashsize);
	114	printf(" \\-bi_flashoffset: %x\n", bd->bi_flashoffset);
6cb142fa	115	#endif
d5bffeb8	116	}
6cb142fa	117
d5bffeb8 MF	118	#define CPLB_PAGE_SIZE (4 * 1024 * 1024)
d5bffeb8 MF	119	#define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
3f0606ad AL	120	void init_cplbtables(void)
3f0606ad AL	121	{
d5bffeb8 MF	122	volatile uint32_t ICPLB_ADDR, ICPLB_DATA;
	123	volatile uint32_t DCPLB_ADDR, DCPLB_DATA;
	124	uint32_t extern_memory;
	125	size_t i;
	126
	127	void icplb_add(uint32_t addr, uint32_t data)
	128	{
	129	*(ICPLB_ADDR + i) = addr;
	130	*(ICPLB_DATA + i) = data;
3f0606ad	131	}
d5bffeb8 MF	132	void dcplb_add(uint32_t addr, uint32_t data)
	133	{
	134	*(DCPLB_ADDR + i) = addr;
	135	*(DCPLB_DATA + i) = data;
3f0606ad AL	136	}
3f0606ad AL	137
d5bffeb8 MF	138	/* populate a few common entries ... we'll let
	139	* the memory map and cplb exception handler do
	140	* the rest of the work.
	141	*/
	142	i = 0;
	143	ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
	144	ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
	145	DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
	146	DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
	147
	148	icplb_add(0xFFA00000, L1_IMEMORY);
	149	dcplb_add(0xFF800000, L1_DMEMORY);
	150	++i;
	151
6d0f6bcf JCPV	152	icplb_add(CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK, SDRAM_IKERNEL);
6d0f6bcf JCPV	153	dcplb_add(CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK, SDRAM_DKERNEL);
d5bffeb8 MF	154	++i;
	155
	156	/* If the monitor crosses a 4 meg boundary, we'll need
	157	* to lock two entries for it.
	158	*/
6d0f6bcf JCPV	159	if ((CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK) != ((CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN) & CPLB_PAGE_MASK)) {
	160	icplb_add((CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN) & CPLB_PAGE_MASK, SDRAM_IKERNEL);
	161	dcplb_add((CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN) & CPLB_PAGE_MASK, SDRAM_DKERNEL);
d5bffeb8 MF	162	++i;
	163	}
	164
	165	icplb_add(0x20000000, SDRAM_INON_CHBL);
	166	dcplb_add(0x20000000, SDRAM_EBIU);
	167	++i;
	168
	169	/* Add entries for the rest of external RAM up to the bootrom */
	170	extern_memory = 0;
	171
	172	#ifdef CONFIG_DEBUG_NULL_PTR
	173	icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) \| PAGE_SIZE_1KB);
	174	dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) \| PAGE_SIZE_1KB);
	175	++i;
	176	icplb_add(extern_memory, SDRAM_IKERNEL);
	177	dcplb_add(extern_memory, SDRAM_DKERNEL);
	178	extern_memory += CPLB_PAGE_SIZE;
	179	++i;
	180	#endif
	181
6d0f6bcf	182	while (i < 16 && extern_memory < (CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK)) {
d5bffeb8 MF	183	icplb_add(extern_memory, SDRAM_IGENERIC);
	184	dcplb_add(extern_memory, SDRAM_DGENERIC);
	185	extern_memory += CPLB_PAGE_SIZE;
	186	++i;
	187	}
	188	while (i < 16) {
	189	icplb_add(0, 0);
	190	dcplb_add(0, 0);
	191	++i;
	192	}
3f0606ad AL	193	}
3f0606ad AL	194
6cb142fa WD	195	/*
	196	* All attempts to come up with a "common" initialization sequence
	197	* that works for all boards and architectures failed: some of the
	198	* requirements are just _too_ different. To get rid of the resulting
	199	* mess of board dependend #ifdef'ed code we now make the whole
	200	* initialization sequence configurable to the user.
	201	*
	202	* The requirements for any new initalization function is simple: it
	203	* receives a pointer to the "global data" structure as it's only
	204	* argument, and returns an integer return code, where 0 means
	205	* "continue" and != 0 means "fatal error, hang the system".
	206	*/
	207
d5bffeb8 MF	208	extern int exception_init(void);
d5bffeb8 MF	209	extern int irq_init(void);
d5bffeb8 MF	210	extern int timer_init(void);
d5bffeb8 MF	211
6cb142fa WD	212	void board_init_f(ulong bootflag)
6cb142fa WD	213	{
6cb142fa WD	214	ulong addr;
6cb142fa WD	215	bd_t *bd;
6dadc919	216	char buf[32];
3f0606ad	217
d5bffeb8 MF	218	#ifdef CONFIG_BOARD_EARLY_INIT_F
	219	serial_early_puts("Board early init flash\n");
	220	board_early_init_f();
	221	#endif
	222
	223	serial_early_puts("Init CPLB tables\n");
3f0606ad	224	init_cplbtables();
6cb142fa	225
d5bffeb8 MF	226	serial_early_puts("Exceptions setup\n");
	227	exception_init();
	228
	229	#ifndef CONFIG_ICACHE_OFF
	230	serial_early_puts("Turn on ICACHE\n");
	231	icache_enable();
	232	#endif
	233	#ifndef CONFIG_DCACHE_OFF
	234	serial_early_puts("Turn on DCACHE\n");
	235	dcache_enable();
	236	#endif
	237
78a0ba7d MF	238	#ifdef DEBUG
	239	if (CONFIG_SYS_GBL_DATA_SIZE < sizeof(*gd))
	240	hang();
	241	#endif
d5bffeb8	242	serial_early_puts("Init global data\n");
6d0f6bcf	243	gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
78a0ba7d	244	memset((void *)gd, 0, CONFIG_SYS_GBL_DATA_SIZE);
6cb142fa WD	245
6cb142fa WD	246	/* Board data initialization */
6d0f6bcf	247	addr = (CONFIG_SYS_GBL_DATA_ADDR + sizeof(gd_t));
6cb142fa WD	248
6cb142fa WD	249	/* Align to 4 byte boundary */
8e7b703a	250	addr &= ~(4 - 1);
3f0606ad	251	bd = (bd_t *) addr;
6cb142fa	252	gd->bd = bd;
3f0606ad	253	memset((void *)bd, 0, sizeof(bd_t));
6cb142fa	254
d5bffeb8 MF	255	bd->bi_r_version = version_string;
	256	bd->bi_cpu = MK_STR(CONFIG_BFIN_CPU);
	257	bd->bi_board_name = BFIN_BOARD_NAME;
	258	bd->bi_vco = get_vco();
	259	bd->bi_cclk = get_cclk();
	260	bd->bi_sclk = get_sclk();
	261
6cb142fa	262	/* Initialize */
d5bffeb8	263	serial_early_puts("IRQ init\n");
9171fc81	264	irq_init();
d5bffeb8 MF	265	serial_early_puts("Environment init\n");
	266	env_init();
	267	serial_early_puts("Baudrate init\n");
	268	init_baudrate();
	269	serial_early_puts("Serial init\n");
	270	serial_init();
	271	serial_early_puts("Console init flash\n");
6cb142fa	272	console_init_f();
d5bffeb8 MF	273	serial_early_puts("End of early debugging\n");
d5bffeb8 MF	274	display_banner();
3f0606ad	275
6cb142fa	276	checkboard();
6cb142fa	277	timer_init();
d5bffeb8	278
6dadc919 MF	279	printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
	280	printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
	281	printf("System: %s MHz\n", strmhz(buf, get_sclk()));
d5bffeb8 MF	282
d5bffeb8 MF	283	printf("RAM: ");
6cb142fa	284	print_size(initdram(0), "\n");
9171fc81	285	#if defined(CONFIG_POST)
3f0606ad AL	286	post_init_f();
	287	post_bootmode_init();
	288	post_run(NULL, POST_ROM \| post_bootmode_get(0));
	289	#endif
d5bffeb8	290
6cb142fa WD	291	board_init_r((gd_t *) gd, 0x20000010);
	292	}
	293
8996d160 MF	294	static void board_net_init_r(bd_t *bd)
	295	{
	296	#ifdef CONFIG_CMD_NET
	297	uchar enetaddr[6];
	298	char *s;
	299
	300	if ((s = getenv("bootfile")) != NULL)
	301	copy_filename(BootFile, s, sizeof(BootFile));
	302
	303	bd->bi_ip_addr = getenv_IPaddr("ipaddr");
	304
	305	printf("Net: ");
	306	eth_initialize(gd->bd);
	307
	308	eth_getenv_enetaddr("ethaddr", enetaddr);
	309	printf("MAC: %pM\n", enetaddr);
	310	#endif
	311	}
	312
6cb142fa WD	313	void board_init_r(gd_t * id, ulong dest_addr)
6cb142fa WD	314	{
6cb142fa	315	extern void malloc_bin_reloc(void);
d5bffeb8	316	char *s;
6cb142fa	317	bd_t *bd;
6cb142fa WD	318	gd = id;
	319	gd->flags \|= GD_FLG_RELOC; /* tell others: relocation done */
	320	bd = gd->bd;
	321
9171fc81	322	#if defined(CONFIG_POST)
3f0606ad AL	323	post_output_backlog();
	324	post_reloc();
	325	#endif
	326
c790b04d SR	327	/* initialize malloc() area */
	328	mem_malloc_init();
	329	malloc_bin_reloc();
	330
6d0f6bcf	331	#if !defined(CONFIG_SYS_NO_FLASH)
b6edc719	332	/* Initialize the flash and protect u-boot by default */
d5bffeb8	333	extern flash_info_t flash_info[];
d5bffeb8	334	puts("Flash: ");
45c48953	335	ulong size = flash_init();
d5bffeb8	336	print_size(size, "\n");
6d0f6bcf	337	flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
b6edc719 MF	338	CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
b6edc719 MF	339	&flash_info[0]);
6d0f6bcf	340	bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
6cb142fa WD	341	bd->bi_flashsize = size;
	342	bd->bi_flashoffset = 0;
	343	#else
	344	bd->bi_flashstart = 0;
	345	bd->bi_flashsize = 0;
	346	bd->bi_flashoffset = 0;
	347	#endif
6cb142fa	348
39782727 MF	349	#ifdef CONFIG_CMD_NAND
	350	puts("NAND: ");
	351	nand_init(); /* go init the NAND */
	352	#endif
	353
6cb142fa WD	354	/* relocate environment function pointers etc. */
	355	env_relocate();
	356
52cb4d4f JCPV	357	/* Initialize stdio devices */
52cb4d4f JCPV	358	stdio_init();
6cb142fa WD	359	jumptable_init();
	360
	361	/* Initialize the console (after the relocation and devices init) */
	362	console_init_r();
	363
01815c2d MF	364	#ifdef CONFIG_STATUS_LED
	365	status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
	366	status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
	367	#endif
	368
6cb142fa	369	/* Initialize from environment */
d5bffeb8	370	if ((s = getenv("loadaddr")) != NULL)
6cb142fa	371	load_addr = simple_strtoul(s, NULL, 16);
3f0606ad	372
6cb142fa WD	373	#if defined(CONFIG_MISC_INIT_R)
	374	/* miscellaneous platform dependent initialisations */
	375	misc_init_r();
	376	#endif
	377
8996d160	378	board_net_init_r(bd);
6cb142fa	379
3f0606ad	380	display_global_data();
3f0606ad	381
9171fc81	382	#if defined(CONFIG_POST)
3f0606ad AL	383	if (post_flag)
3f0606ad AL	384	post_run(NULL, POST_RAM \| post_bootmode_get(0));
6cb142fa WD	385	#endif
6cb142fa WD	386
909878fd MF	387	if (bfin_os_log_check()) {
	388	puts("\nLog buffer from operating system:\n");
	389	bfin_os_log_dump();
	390	puts("\n");
	391	}
	392
6cb142fa	393	/* main_loop() can return to retry autoboot, if so just run it again. */
d5bffeb8	394	for (;;)
6cb142fa	395	main_loop();
6cb142fa WD	396	}
6cb142fa WD	397
6cb142fa WD	398	void hang(void)
6cb142fa WD	399	{
01815c2d MF	400	#ifdef CONFIG_STATUS_LED
	401	status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
	402	status_led_set(STATUS_LED_CRASH, STATUS_LED_BLINKING);
	403	#endif
6cb142fa	404	puts("### ERROR ### Please RESET the board ###\n");
d5bffeb8 MF	405	while (1)
	406	/* If a JTAG emulator is hooked up, we'll automatically trigger
	407	* a breakpoint in it. If one isn't, this is just a NOP.
	408	*/
	409	asm("emuexcpt;");
6cb142fa	410	}