[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 <devices.h>
#include <environment.h>
#include <i2c.h>
#include <malloc.h>
#include <net.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 " (" __DATE__ " - " __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
}

/* Get the input voltage */
static u_long get_vco(void)
{
	u_long msel;
	u_long vco;

	msel = (*pPLL_CTL >> 9) & 0x3F;
	if (0 == msel)
		msel = 64;

	vco = CONFIG_CLKIN_HZ;
	vco >>= (1 & *pPLL_CTL);	/* DF bit */
	vco = msel * vco;
	return vco;
}

/* Get the Core clock */
u_long get_cclk(void)
{
	u_long csel, ssel;
	if (*pPLL_STAT & 0x1)
		return CONFIG_CLKIN_HZ;

	ssel = *pPLL_DIV;
	csel = ((ssel >> 4) & 0x03);
	ssel &= 0xf;
	if (ssel && ssel < (1 << csel))	/* SCLK > CCLK */
		return get_vco() / ssel;
	return get_vco() >> csel;
}

/* Get the System clock */
u_long get_sclk(void)
{
	u_long ssel;

	if (*pPLL_STAT & 0x1)
		return CONFIG_CLKIN_HZ;

	ssel = (*pPLL_DIV & 0xf);

	return get_vco() / ssel;
}

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)\n", bfin_revid());
	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_enetaddr: %x %x %x %x %x %x\n",
	       bd->bi_enetaddr[0], bd->bi_enetaddr[1],
	       bd->bi_enetaddr[2], bd->bi_enetaddr[3],
	       bd->bi_enetaddr[4], bd->bi_enetaddr[5]);
	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 rtc_init(void);
extern int timer_init(void);

void board_init_f(ulong bootflag)
{
	ulong addr;
	bd_t *bd;

#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

	serial_early_puts("Init global data\n");
	gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
	memset((void *)gd, 0, sizeof(gd_t));

	/* 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();
#if defined(CONFIG_RTC_BFIN) && defined(CONFIG_CMD_DATE)
	rtc_init();
#endif
	timer_init();

	printf("Clock: VCO: %lu MHz, Core: %lu MHz, System: %lu MHz\n",
	       get_vco() / 1000000, get_cclk() / 1000000, get_sclk() / 1000000);

	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);
}

#if defined(CONFIG_SOFT_I2C) || defined(CONFIG_HARD_I2C)
static int init_func_i2c(void)
{
	puts("I2C:   ");
	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
	puts("ready\n");
	return (0);
}
#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

#if	!defined(CONFIG_SYS_NO_FLASH)
	/* There are some other pointer constants we must deal with */
	/* configure available FLASH banks */
	extern flash_info_t flash_info[];
	ulong size = flash_init();
	puts("Flash: ");
	print_size(size, "\n");
	flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
		      CONFIG_SYS_FLASH_BASE + 0x1ffff, &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
	/* initialize malloc() area */
	mem_malloc_init();
	malloc_bin_reloc();

#ifdef CONFIG_SPI
# if ! defined(CONFIG_ENV_IS_IN_EEPROM)
	spi_init_f();
# endif
	spi_init_r();
#endif

	/* relocate environment function pointers etc. */
	env_relocate();

#ifdef CONFIG_CMD_NET
	/* board MAC address */
	s = getenv("ethaddr");
	if (s == NULL) {
# ifndef CONFIG_ETHADDR
#  if 0
		if (!board_get_enetaddr(bd->bi_enetaddr)) {
			char nid[20];
			sprintf(nid, "%02X:%02X:%02X:%02X:%02X:%02X",
				bd->bi_enetaddr[0], bd->bi_enetaddr[1],
				bd->bi_enetaddr[2], bd->bi_enetaddr[3],
				bd->bi_enetaddr[4], bd->bi_enetaddr[5]);
			setenv("ethaddr", nid);
		}
#  endif
# endif
	} else {
		int i;
		char *e;
		for (i = 0; i < 6; ++i) {
			bd->bi_enetaddr[i] = simple_strtoul(s, &e, 16);
			s = (*e) ? e + 1 : e;
		}
	}

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

	/* Initialize devices */
	devices_init();
	jumptable_init();

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

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

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

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

#ifdef CONFIG_CMD_NET
	printf("Net:   ");
	eth_initialize(gd->bd);
	if (getenv("ethaddr"))
		printf("MAC:   %02X:%02X:%02X:%02X:%02X:%02X\n",
			bd->bi_enetaddr[0], bd->bi_enetaddr[1], bd->bi_enetaddr[2],
			bd->bi_enetaddr[3], bd->bi_enetaddr[4], bd->bi_enetaddr[5]);
#endif

#if defined(CONFIG_SOFT_I2C) || defined(CONFIG_HARD_I2C)
	init_func_i2c();
#endif

	display_global_data();

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

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

void hang(void)
{
	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>
6cb142fa	14	#include <devices.h>
6cb142fa	15	#include <environment.h>
3f0606ad	16	#include <i2c.h>
d5bffeb8 MF	17	#include <malloc.h>
	18	#include <net.h>
	19	#include <version.h>
	20
3f0606ad	21	#include <asm/cplb.h>
d5bffeb8 MF	22	#include <asm/mach-common/bits/mpu.h>
	23
	24	#ifdef CONFIG_CMD_NAND
	25	#include <nand.h> /* cannot even include nand.h if it isnt configured */
	26	#endif
6cb142fa	27
9171fc81	28	#if defined(CONFIG_POST)
3f0606ad AL	29	#include <post.h>
	30	int post_flag;
	31	#endif
d87080b7	32
1218abf1 WD	33	DECLARE_GLOBAL_DATA_PTR;
1218abf1 WD	34
d5bffeb8 MF	35	const char version_string[] = U_BOOT_VERSION " (" __DATE__ " - " __TIME__ ")";
	36
	37	__attribute__((always_inline))
	38	static inline void serial_early_puts(const char *s)
	39	{
	40	#ifdef CONFIG_DEBUG_EARLY_SERIAL
	41	serial_puts("Early: ");
	42	serial_puts(s);
3f0606ad	43	#endif
d5bffeb8	44	}
6cb142fa	45
d5bffeb8 MF	46	/* Get the input voltage */
d5bffeb8 MF	47	static u_long get_vco(void)
3f0606ad AL	48	{
	49	u_long msel;
	50	u_long vco;
	51
	52	msel = (*pPLL_CTL >> 9) & 0x3F;
	53	if (0 == msel)
	54	msel = 64;
	55
	56	vco = CONFIG_CLKIN_HZ;
	57	vco >>= (1 & pPLL_CTL); / DF bit */
	58	vco = msel * vco;
	59	return vco;
	60	}
	61
d5bffeb8	62	/* Get the Core clock */
3f0606ad AL	63	u_long get_cclk(void)
	64	{
	65	u_long csel, ssel;
	66	if (*pPLL_STAT & 0x1)
	67	return CONFIG_CLKIN_HZ;
	68
	69	ssel = *pPLL_DIV;
	70	csel = ((ssel >> 4) & 0x03);
	71	ssel &= 0xf;
	72	if (ssel && ssel < (1 << csel)) /* SCLK > CCLK */
	73	return get_vco() / ssel;
	74	return get_vco() >> csel;
	75	}
	76
	77	/* Get the System clock */
	78	u_long get_sclk(void)
	79	{
	80	u_long ssel;
	81
	82	if (*pPLL_STAT & 0x1)
	83	return CONFIG_CLKIN_HZ;
	84
	85	ssel = (*pPLL_DIV & 0xf);
	86
	87	return get_vco() / ssel;
	88	}
6cb142fa	89
d5bffeb8 MF	90	static void mem_malloc_start, mem_malloc_end, *mem_malloc_brk;
d5bffeb8 MF	91
6cb142fa WD	92	static void mem_malloc_init(void)
6cb142fa WD	93	{
6d0f6bcf JCPV	94	mem_malloc_start = (void *)CONFIG_SYS_MALLOC_BASE;
6d0f6bcf JCPV	95	mem_malloc_end = (void *)(CONFIG_SYS_MALLOC_BASE + CONFIG_SYS_MALLOC_LEN);
6cb142fa	96	mem_malloc_brk = mem_malloc_start;
d5bffeb8	97	memset(mem_malloc_start, 0, mem_malloc_end - mem_malloc_start);
6cb142fa WD	98	}
	99
	100	void *sbrk(ptrdiff_t increment)
	101	{
d5bffeb8 MF	102	void *old = mem_malloc_brk;
	103	void *new = old + increment;
	104
	105	if (new < mem_malloc_start \|\| new > mem_malloc_end)
	106	return NULL;
6cb142fa	107
6cb142fa WD	108	mem_malloc_brk = new;
6cb142fa WD	109
d5bffeb8	110	return old;
6cb142fa WD	111	}
	112
	113	static int display_banner(void)
	114	{
d5bffeb8	115	printf("\n\n%s\n\n", version_string);
f7ce12cb	116	printf("CPU: ADSP " MK_STR(CONFIG_BFIN_CPU) " (Detected Rev: 0.%d)\n", bfin_revid());
d5bffeb8	117	return 0;
6cb142fa WD	118	}
	119
	120	static int init_baudrate(void)
	121	{
d5bffeb8 MF	122	char baudrate[15];
d5bffeb8 MF	123	int i = getenv_r("baudrate", baudrate, sizeof(baudrate));
6cb142fa	124	gd->bd->bi_baudrate = gd->baudrate = (i > 0)
d5bffeb8	125	? simple_strtoul(baudrate, NULL, 10)
3f0606ad	126	: CONFIG_BAUDRATE;
d5bffeb8	127	return 0;
6cb142fa WD	128	}
6cb142fa WD	129
6cb142fa WD	130	static void display_global_data(void)
6cb142fa WD	131	{
d5bffeb8	132	#ifdef CONFIG_DEBUG_EARLY_SERIAL
6cb142fa WD	133	bd_t *bd;
6cb142fa WD	134	bd = gd->bd;
d5bffeb8 MF	135	printf(" gd: %x\n", gd);
	136	printf(" \|-flags: %x\n", gd->flags);
	137	printf(" \|-board_type: %x\n", gd->board_type);
	138	printf(" \|-baudrate: %i\n", gd->baudrate);
	139	printf(" \|-have_console: %x\n", gd->have_console);
	140	printf(" \|-ram_size: %x\n", gd->ram_size);
	141	printf(" \|-reloc_off: %x\n", gd->reloc_off);
	142	printf(" \|-env_addr: %x\n", gd->env_addr);
	143	printf(" \|-env_valid: %x\n", gd->env_valid);
	144	printf(" \|-jt(%x): %x\n", gd->jt, *(gd->jt));
	145	printf(" \\-bd: %x\n", gd->bd);
	146	printf(" \|-bi_baudrate: %x\n", bd->bi_baudrate);
	147	printf(" \|-bi_ip_addr: %x\n", bd->bi_ip_addr);
	148	printf(" \|-bi_enetaddr: %x %x %x %x %x %x\n",
	149	bd->bi_enetaddr[0], bd->bi_enetaddr[1],
	150	bd->bi_enetaddr[2], bd->bi_enetaddr[3],
	151	bd->bi_enetaddr[4], bd->bi_enetaddr[5]);
	152	printf(" \|-bi_boot_params: %x\n", bd->bi_boot_params);
	153	printf(" \|-bi_memstart: %x\n", bd->bi_memstart);
	154	printf(" \|-bi_memsize: %x\n", bd->bi_memsize);
	155	printf(" \|-bi_flashstart: %x\n", bd->bi_flashstart);
	156	printf(" \|-bi_flashsize: %x\n", bd->bi_flashsize);
	157	printf(" \\-bi_flashoffset: %x\n", bd->bi_flashoffset);
6cb142fa	158	#endif
d5bffeb8	159	}
6cb142fa	160
d5bffeb8 MF	161	#define CPLB_PAGE_SIZE (4 * 1024 * 1024)
d5bffeb8 MF	162	#define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
3f0606ad AL	163	void init_cplbtables(void)
3f0606ad AL	164	{
d5bffeb8 MF	165	volatile uint32_t ICPLB_ADDR, ICPLB_DATA;
	166	volatile uint32_t DCPLB_ADDR, DCPLB_DATA;
	167	uint32_t extern_memory;
	168	size_t i;
	169
	170	void icplb_add(uint32_t addr, uint32_t data)
	171	{
	172	*(ICPLB_ADDR + i) = addr;
	173	*(ICPLB_DATA + i) = data;
3f0606ad	174	}
d5bffeb8 MF	175	void dcplb_add(uint32_t addr, uint32_t data)
	176	{
	177	*(DCPLB_ADDR + i) = addr;
	178	*(DCPLB_DATA + i) = data;
3f0606ad AL	179	}
3f0606ad AL	180
d5bffeb8 MF	181	/* populate a few common entries ... we'll let
	182	* the memory map and cplb exception handler do
	183	* the rest of the work.
	184	*/
	185	i = 0;
	186	ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
	187	ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
	188	DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
	189	DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
	190
	191	icplb_add(0xFFA00000, L1_IMEMORY);
	192	dcplb_add(0xFF800000, L1_DMEMORY);
	193	++i;
	194
6d0f6bcf JCPV	195	icplb_add(CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK, SDRAM_IKERNEL);
6d0f6bcf JCPV	196	dcplb_add(CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK, SDRAM_DKERNEL);
d5bffeb8 MF	197	++i;
	198
	199	/* If the monitor crosses a 4 meg boundary, we'll need
	200	* to lock two entries for it.
	201	*/
6d0f6bcf JCPV	202	if ((CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK) != ((CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN) & CPLB_PAGE_MASK)) {
	203	icplb_add((CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN) & CPLB_PAGE_MASK, SDRAM_IKERNEL);
	204	dcplb_add((CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN) & CPLB_PAGE_MASK, SDRAM_DKERNEL);
d5bffeb8 MF	205	++i;
	206	}
	207
	208	icplb_add(0x20000000, SDRAM_INON_CHBL);
	209	dcplb_add(0x20000000, SDRAM_EBIU);
	210	++i;
	211
	212	/* Add entries for the rest of external RAM up to the bootrom */
	213	extern_memory = 0;
	214
	215	#ifdef CONFIG_DEBUG_NULL_PTR
	216	icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) \| PAGE_SIZE_1KB);
	217	dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) \| PAGE_SIZE_1KB);
	218	++i;
	219	icplb_add(extern_memory, SDRAM_IKERNEL);
	220	dcplb_add(extern_memory, SDRAM_DKERNEL);
	221	extern_memory += CPLB_PAGE_SIZE;
	222	++i;
	223	#endif
	224
6d0f6bcf	225	while (i < 16 && extern_memory < (CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK)) {
d5bffeb8 MF	226	icplb_add(extern_memory, SDRAM_IGENERIC);
	227	dcplb_add(extern_memory, SDRAM_DGENERIC);
	228	extern_memory += CPLB_PAGE_SIZE;
	229	++i;
	230	}
	231	while (i < 16) {
	232	icplb_add(0, 0);
	233	dcplb_add(0, 0);
	234	++i;
	235	}
3f0606ad AL	236	}
3f0606ad AL	237
6cb142fa WD	238	/*
	239	* All attempts to come up with a "common" initialization sequence
	240	* that works for all boards and architectures failed: some of the
	241	* requirements are just _too_ different. To get rid of the resulting
	242	* mess of board dependend #ifdef'ed code we now make the whole
	243	* initialization sequence configurable to the user.
	244	*
	245	* The requirements for any new initalization function is simple: it
	246	* receives a pointer to the "global data" structure as it's only
	247	* argument, and returns an integer return code, where 0 means
	248	* "continue" and != 0 means "fatal error, hang the system".
	249	*/
	250
d5bffeb8 MF	251	extern int exception_init(void);
	252	extern int irq_init(void);
	253	extern int rtc_init(void);
	254	extern int timer_init(void);
	255
6cb142fa WD	256	void board_init_f(ulong bootflag)
6cb142fa WD	257	{
6cb142fa WD	258	ulong addr;
6cb142fa WD	259	bd_t *bd;
3f0606ad	260
d5bffeb8 MF	261	#ifdef CONFIG_BOARD_EARLY_INIT_F
	262	serial_early_puts("Board early init flash\n");
	263	board_early_init_f();
	264	#endif
	265
	266	serial_early_puts("Init CPLB tables\n");
3f0606ad	267	init_cplbtables();
6cb142fa	268
d5bffeb8 MF	269	serial_early_puts("Exceptions setup\n");
	270	exception_init();
	271
	272	#ifndef CONFIG_ICACHE_OFF
	273	serial_early_puts("Turn on ICACHE\n");
	274	icache_enable();
	275	#endif
	276	#ifndef CONFIG_DCACHE_OFF
	277	serial_early_puts("Turn on DCACHE\n");
	278	dcache_enable();
	279	#endif
	280
	281	serial_early_puts("Init global data\n");
6d0f6bcf	282	gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
3f0606ad	283	memset((void *)gd, 0, sizeof(gd_t));
6cb142fa WD	284
6cb142fa WD	285	/* Board data initialization */
6d0f6bcf	286	addr = (CONFIG_SYS_GBL_DATA_ADDR + sizeof(gd_t));
6cb142fa WD	287
6cb142fa WD	288	/* Align to 4 byte boundary */
8e7b703a	289	addr &= ~(4 - 1);
3f0606ad	290	bd = (bd_t *) addr;
6cb142fa	291	gd->bd = bd;
3f0606ad	292	memset((void *)bd, 0, sizeof(bd_t));
6cb142fa	293
d5bffeb8 MF	294	bd->bi_r_version = version_string;
	295	bd->bi_cpu = MK_STR(CONFIG_BFIN_CPU);
	296	bd->bi_board_name = BFIN_BOARD_NAME;
	297	bd->bi_vco = get_vco();
	298	bd->bi_cclk = get_cclk();
	299	bd->bi_sclk = get_sclk();
	300
6cb142fa	301	/* Initialize */
d5bffeb8	302	serial_early_puts("IRQ init\n");
9171fc81	303	irq_init();
d5bffeb8 MF	304	serial_early_puts("Environment init\n");
	305	env_init();
	306	serial_early_puts("Baudrate init\n");
	307	init_baudrate();
	308	serial_early_puts("Serial init\n");
	309	serial_init();
	310	serial_early_puts("Console init flash\n");
6cb142fa	311	console_init_f();
d5bffeb8 MF	312	serial_early_puts("End of early debugging\n");
d5bffeb8 MF	313	display_banner();
3f0606ad	314
6cb142fa	315	checkboard();
d5bffeb8	316	#if defined(CONFIG_RTC_BFIN) && defined(CONFIG_CMD_DATE)
6cb142fa WD	317	rtc_init();
	318	#endif
	319	timer_init();
d5bffeb8	320
3f0606ad AL	321	printf("Clock: VCO: %lu MHz, Core: %lu MHz, System: %lu MHz\n",
3f0606ad AL	322	get_vco() / 1000000, get_cclk() / 1000000, get_sclk() / 1000000);
d5bffeb8 MF	323
d5bffeb8 MF	324	printf("RAM: ");
6cb142fa	325	print_size(initdram(0), "\n");
9171fc81	326	#if defined(CONFIG_POST)
3f0606ad AL	327	post_init_f();
	328	post_bootmode_init();
	329	post_run(NULL, POST_ROM \| post_bootmode_get(0));
	330	#endif
d5bffeb8	331
6cb142fa WD	332	board_init_r((gd_t *) gd, 0x20000010);
	333	}
	334
3f0606ad AL	335	#if defined(CONFIG_SOFT_I2C) \|\| defined(CONFIG_HARD_I2C)
	336	static int init_func_i2c(void)
	337	{
	338	puts("I2C: ");
6d0f6bcf	339	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
3f0606ad AL	340	puts("ready\n");
	341	return (0);
	342	}
	343	#endif
	344
6cb142fa WD	345	void board_init_r(gd_t * id, ulong dest_addr)
6cb142fa WD	346	{
6cb142fa	347	extern void malloc_bin_reloc(void);
d5bffeb8	348	char *s;
6cb142fa	349	bd_t *bd;
6cb142fa WD	350	gd = id;
	351	gd->flags \|= GD_FLG_RELOC; /* tell others: relocation done */
	352	bd = gd->bd;
	353
9171fc81	354	#if defined(CONFIG_POST)
3f0606ad AL	355	post_output_backlog();
	356	post_reloc();
	357	#endif
	358
6d0f6bcf	359	#if !defined(CONFIG_SYS_NO_FLASH)
6cb142fa WD	360	/* There are some other pointer constants we must deal with */
6cb142fa WD	361	/* configure available FLASH banks */
d5bffeb8 MF	362	extern flash_info_t flash_info[];
	363	ulong size = flash_init();
	364	puts("Flash: ");
	365	print_size(size, "\n");
6d0f6bcf JCPV	366	flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
	367	CONFIG_SYS_FLASH_BASE + 0x1ffff, &flash_info[0]);
	368	bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
6cb142fa WD	369	bd->bi_flashsize = size;
	370	bd->bi_flashoffset = 0;
	371	#else
	372	bd->bi_flashstart = 0;
	373	bd->bi_flashsize = 0;
	374	bd->bi_flashoffset = 0;
	375	#endif
	376	/* initialize malloc() area */
	377	mem_malloc_init();
	378	malloc_bin_reloc();
	379
3f0606ad	380	#ifdef CONFIG_SPI
bb1f8b4f	381	# if ! defined(CONFIG_ENV_IS_IN_EEPROM)
3f0606ad AL	382	spi_init_f();
	383	# endif
	384	spi_init_r();
	385	#endif
	386
6cb142fa WD	387	/* relocate environment function pointers etc. */
	388	env_relocate();
	389
d5bffeb8	390	#ifdef CONFIG_CMD_NET
6cb142fa WD	391	/* board MAC address */
6cb142fa WD	392	s = getenv("ethaddr");
d5bffeb8 MF	393	if (s == NULL) {
	394	# ifndef CONFIG_ETHADDR
	395	# if 0
	396	if (!board_get_enetaddr(bd->bi_enetaddr)) {
	397	char nid[20];
	398	sprintf(nid, "%02X:%02X:%02X:%02X:%02X:%02X",
	399	bd->bi_enetaddr[0], bd->bi_enetaddr[1],
	400	bd->bi_enetaddr[2], bd->bi_enetaddr[3],
	401	bd->bi_enetaddr[4], bd->bi_enetaddr[5]);
	402	setenv("ethaddr", nid);
	403	}
	404	# endif
	405	# endif
	406	} else {
	407	int i;
	408	char *e;
	409	for (i = 0; i < 6; ++i) {
	410	bd->bi_enetaddr[i] = simple_strtoul(s, &e, 16);
6cb142fa	411	s = (*e) ? e + 1 : e;
d5bffeb8	412	}
6cb142fa WD	413	}
	414
	415	/* IP Address */
	416	bd->bi_ip_addr = getenv_IPaddr("ipaddr");
d5bffeb8	417	#endif
6cb142fa WD	418
	419	/* Initialize devices */
	420	devices_init();
	421	jumptable_init();
	422
	423	/* Initialize the console (after the relocation and devices init) */
	424	console_init_r();
	425
	426	/* Initialize from environment */
d5bffeb8	427	if ((s = getenv("loadaddr")) != NULL)
6cb142fa	428	load_addr = simple_strtoul(s, NULL, 16);
d5bffeb8 MF	429	#ifdef CONFIG_CMD_NET
d5bffeb8 MF	430	if ((s = getenv("bootfile")) != NULL)
6cb142fa	431	copy_filename(BootFile, s, sizeof(BootFile));
6cb142fa	432	#endif
3f0606ad	433
d5bffeb8	434	#ifdef CONFIG_CMD_NAND
3f0606ad AL	435	puts("NAND: ");
	436	nand_init(); /* go init the NAND */
	437	#endif
	438
6cb142fa WD	439	#if defined(CONFIG_MISC_INIT_R)
	440	/* miscellaneous platform dependent initialisations */
	441	misc_init_r();
	442	#endif
	443
f7ce12cb	444	#ifdef CONFIG_CMD_NET
d5bffeb8 MF	445	printf("Net: ");
	446	eth_initialize(gd->bd);
	447	if (getenv("ethaddr"))
	448	printf("MAC: %02X:%02X:%02X:%02X:%02X:%02X\n",
	449	bd->bi_enetaddr[0], bd->bi_enetaddr[1], bd->bi_enetaddr[2],
	450	bd->bi_enetaddr[3], bd->bi_enetaddr[4], bd->bi_enetaddr[5]);
6cb142fa	451	#endif
6cb142fa	452
3f0606ad	453	#if defined(CONFIG_SOFT_I2C) \|\| defined(CONFIG_HARD_I2C)
6cb142fa WD	454	init_func_i2c();
	455	#endif
	456
3f0606ad	457	display_global_data();
3f0606ad	458
9171fc81	459	#if defined(CONFIG_POST)
3f0606ad AL	460	if (post_flag)
3f0606ad AL	461	post_run(NULL, POST_RAM \| post_bootmode_get(0));
6cb142fa WD	462	#endif
	463
	464	/* main_loop() can return to retry autoboot, if so just run it again. */
d5bffeb8	465	for (;;)
6cb142fa	466	main_loop();
6cb142fa WD	467	}
6cb142fa WD	468
6cb142fa WD	469	void hang(void)
	470	{
	471	puts("### ERROR ### Please RESET the board ###\n");
d5bffeb8 MF	472	while (1)
	473	/* If a JTAG emulator is hooked up, we'll automatically trigger
	474	* a breakpoint in it. If one isn't, this is just a NOP.
	475	*/
	476	asm("emuexcpt;");
6cb142fa	477	}