[people/ms/u-boot.git] / lib_mips / board.c

/*
 * (C) Copyright 2003
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <command.h>
#include <malloc.h>
#include <devices.h>
#include <version.h>
#include <net.h>
#include <environment.h>

DECLARE_GLOBAL_DATA_PTR;

#if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
      (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
    defined(CFG_ENV_IS_IN_NVRAM)
#define	TOTAL_MALLOC_LEN	(CFG_MALLOC_LEN + CFG_ENV_SIZE)
#else
#define	TOTAL_MALLOC_LEN	CFG_MALLOC_LEN
#endif

#undef DEBUG

extern int timer_init(void);

extern int incaip_set_cpuclk(void);

extern ulong uboot_end_data;
extern ulong uboot_end;

ulong monitor_flash_len;

const char version_string[] =
	U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";

static char *failed = "*** failed ***\n";

/*
 * Begin and End of memory area for malloc(), and current "brk"
 */
static ulong mem_malloc_start;
static ulong mem_malloc_end;
static ulong mem_malloc_brk;


/*
 * The Malloc area is immediately below the monitor copy in DRAM
 */
static void mem_malloc_init (void)
{
	ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;

	mem_malloc_end = dest_addr;
	mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
	mem_malloc_brk = mem_malloc_start;

	memset ((void *) mem_malloc_start,
		0,
		mem_malloc_end - mem_malloc_start);
}

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

	if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
		return (NULL);
	}
	mem_malloc_brk = new;
	return ((void *) old);
}


static int init_func_ram (void)
{
#ifdef	CONFIG_BOARD_TYPES
	int board_type = gd->board_type;
#else
	int board_type = 0;	/* use dummy arg */
#endif
	puts ("DRAM:  ");

	if ((gd->ram_size = initdram (board_type)) > 0) {
		print_size (gd->ram_size, "\n");
		return (0);
	}
	puts (failed);
	return (1);
}

static int display_banner(void)
{

	printf ("\n\n%s\n\n", version_string);
	return (0);
}

static void display_flash_config(ulong size)
{
	puts ("Flash: ");
	print_size (size, "\n");
}


static int init_baudrate (void)
{
	char tmp[64];	/* long enough for environment variables */
	int i = getenv_r ("baudrate", tmp, sizeof (tmp));

	gd->baudrate = (i > 0)
			? (int) simple_strtoul (tmp, NULL, 10)
			: CONFIG_BAUDRATE;

	return (0);
}


/*
 * Breath some life into the board...
 *
 * The first part of initialization is running from Flash memory;
 * its main purpose is to initialize the RAM so that we
 * can relocate the monitor code to RAM.
 */

/*
 * 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".
 */
typedef int (init_fnc_t) (void);

init_fnc_t *init_sequence[] = {
	timer_init,
	env_init,		/* initialize environment */
#ifdef CONFIG_INCA_IP
	incaip_set_cpuclk,	/* set cpu clock according to environment variable */
#endif
	init_baudrate,		/* initialze baudrate settings */
	serial_init,		/* serial communications setup */
	console_init_f,
	display_banner,		/* say that we are here */
	checkboard,
	init_func_ram,
	NULL,
};


void board_init_f(ulong bootflag)
{
	gd_t gd_data, *id;
	bd_t *bd;
	init_fnc_t **init_fnc_ptr;
	ulong addr, addr_sp, len = (ulong)&uboot_end - CFG_MONITOR_BASE;
	ulong *s;
#ifdef CONFIG_PURPLE
	void copy_code (ulong);
#endif

	/* Pointer is writable since we allocated a register for it.
	 */
	gd = &gd_data;
	/* compiler optimization barrier needed for GCC >= 3.4 */
	__asm__ __volatile__("": : :"memory");

	memset ((void *)gd, 0, sizeof (gd_t));

	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
		if ((*init_fnc_ptr)() != 0) {
			hang ();
		}
	}

	/*
	 * Now that we have DRAM mapped and working, we can
	 * relocate the code and continue running from DRAM.
	 */
	addr = CFG_SDRAM_BASE + gd->ram_size;

	/* We can reserve some RAM "on top" here.
	 */

	/* round down to next 4 kB limit.
	 */
	addr &= ~(4096 - 1);
	debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);

	/* Reserve memory for U-Boot code, data & bss
	 * round down to next 16 kB limit
	 */
	addr -= len;
	addr &= ~(16 * 1024 - 1);

	debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);

	 /* Reserve memory for malloc() arena.
	 */
	addr_sp = addr - TOTAL_MALLOC_LEN;
	debug ("Reserving %dk for malloc() at: %08lx\n",
			TOTAL_MALLOC_LEN >> 10, addr_sp);

	/*
	 * (permanently) allocate a Board Info struct
	 * and a permanent copy of the "global" data
	 */
	addr_sp -= sizeof(bd_t);
	bd = (bd_t *)addr_sp;
	gd->bd = bd;
	debug ("Reserving %d Bytes for Board Info at: %08lx\n",
			sizeof(bd_t), addr_sp);

	addr_sp -= sizeof(gd_t);
	id = (gd_t *)addr_sp;
	debug ("Reserving %d Bytes for Global Data at: %08lx\n",
			sizeof (gd_t), addr_sp);

 	/* Reserve memory for boot params.
	 */
	addr_sp -= CFG_BOOTPARAMS_LEN;
	bd->bi_boot_params = addr_sp;
	debug ("Reserving %dk for boot params() at: %08lx\n",
			CFG_BOOTPARAMS_LEN >> 10, addr_sp);

	/*
	 * Finally, we set up a new (bigger) stack.
	 *
	 * Leave some safety gap for SP, force alignment on 16 byte boundary
	 * Clear initial stack frame
	 */
	addr_sp -= 16;
	addr_sp &= ~0xF;
	s = (ulong *)addr_sp;
	*s-- = 0;
	*s-- = 0;
	addr_sp = (ulong)s;
	debug ("Stack Pointer at: %08lx\n", addr_sp);

	/*
	 * Save local variables to board info struct
	 */
	bd->bi_memstart	= CFG_SDRAM_BASE;	/* start of  DRAM memory */
	bd->bi_memsize	= gd->ram_size;		/* size  of  DRAM memory in bytes */
	bd->bi_baudrate	= gd->baudrate;		/* Console Baudrate */

	memcpy (id, (void *)gd, sizeof (gd_t));

	/* On the purple board we copy the code in a special way
	 * in order to solve flash problems
	 */
#ifdef CONFIG_PURPLE
	copy_code(addr);
#endif

	relocate_code (addr_sp, id, addr);

	/* NOTREACHED - relocate_code() does not return */
}
/************************************************************************
 *
 * This is the next part if the initialization sequence: we are now
 * running from RAM and have a "normal" C environment, i. e. global
 * data can be written, BSS has been cleared, the stack size in not
 * that critical any more, etc.
 *
 ************************************************************************
 */

void board_init_r (gd_t *id, ulong dest_addr)
{
	cmd_tbl_t *cmdtp;
	ulong size;
	extern void malloc_bin_reloc (void);
#ifndef CFG_ENV_IS_NOWHERE
	extern char * env_name_spec;
#endif
	char *s, *e;
	bd_t *bd;
	int i;

	gd = id;
	gd->flags |= GD_FLG_RELOC;	/* tell others: relocation done */

	debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);

	gd->reloc_off = dest_addr - CFG_MONITOR_BASE;

	monitor_flash_len = (ulong)&uboot_end_data - dest_addr;

	/*
	 * We have to relocate the command table manually
	 */
 	for (cmdtp = &__u_boot_cmd_start; cmdtp !=  &__u_boot_cmd_end; cmdtp++) {
		ulong addr;

		addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
#if 0
		printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
				cmdtp->name, (ulong) (cmdtp->cmd), addr);
#endif
		cmdtp->cmd =
			(int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;

		addr = (ulong)(cmdtp->name) + gd->reloc_off;
		cmdtp->name = (char *)addr;

		if (cmdtp->usage) {
			addr = (ulong)(cmdtp->usage) + gd->reloc_off;
			cmdtp->usage = (char *)addr;
		}
#ifdef	CFG_LONGHELP
		if (cmdtp->help) {
			addr = (ulong)(cmdtp->help) + gd->reloc_off;
			cmdtp->help = (char *)addr;
		}
#endif
	}
	/* there are some other pointer constants we must deal with */
#ifndef CFG_ENV_IS_NOWHERE
	env_name_spec += gd->reloc_off;
#endif

	/* configure available FLASH banks */
	size = flash_init();
	display_flash_config (size);

	bd = gd->bd;
	bd->bi_flashstart = CFG_FLASH_BASE;
	bd->bi_flashsize = size;
#if CFG_MONITOR_BASE == CFG_FLASH_BASE
	bd->bi_flashoffset = monitor_flash_len;	/* reserved area for U-Boot */
#else
	bd->bi_flashoffset = 0;
#endif

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

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

	/* board MAC address */
	s = getenv ("ethaddr");
	for (i = 0; i < 6; ++i) {
		bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
		if (s)
			s = (*e) ? e + 1 : e;
	}

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

#if defined(CONFIG_PCI)
	/*
	 * Do pci configuration
	 */
	pci_init();
#endif

/** leave this here (after malloc(), environment and PCI are working) **/
	/* 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);
	}
#if (CONFIG_COMMANDS & CFG_CMD_NET)
	if ((s = getenv ("bootfile")) != NULL) {
		copy_filename (BootFile, s, sizeof (BootFile));
	}
#endif	/* CFG_CMD_NET */

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

#if (CONFIG_COMMANDS & CFG_CMD_NET)
#if defined(CONFIG_NET_MULTI)
	puts ("Net:   ");
#endif
	eth_initialize(gd->bd);
#endif

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

	/* NOTREACHED - no way out of command loop except booting */
}

void hang (void)
{
	puts ("### ERROR ### Please RESET the board ###\n");
	for (;;);
}
Commit	Line	Data
c021880a WD	1	/*
	2	* (C) Copyright 2003
	3	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	#include <common.h>
	25	#include <command.h>
	26	#include <malloc.h>
	27	#include <devices.h>
c021880a WD	28	#include <version.h>
	29	#include <net.h>
	30	#include <environment.h>
	31
c75eba3b WD	32	DECLARE_GLOBAL_DATA_PTR;
c75eba3b WD	33
c021880a WD	34	#if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) \|\| \
	35	(CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) \|\| \
	36	defined(CFG_ENV_IS_IN_NVRAM)
	37	#define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE)
	38	#else
	39	#define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
	40	#endif
	41
	42	#undef DEBUG
	43
	44	extern int timer_init(void);
	45
7cb22f97 WD	46	extern int incaip_set_cpuclk(void);
7cb22f97 WD	47
3b57fe0a WD	48	extern ulong uboot_end_data;
	49	extern ulong uboot_end;
	50
	51	ulong monitor_flash_len;
	52
c021880a WD	53	const char version_string[] =
	54	U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";
	55
	56	static char failed = " failed *\n";
	57
	58	/*
	59	* Begin and End of memory area for malloc(), and current "brk"
	60	*/
	61	static ulong mem_malloc_start;
	62	static ulong mem_malloc_end;
	63	static ulong mem_malloc_brk;
	64
	65
	66	/*
	67	* The Malloc area is immediately below the monitor copy in DRAM
	68	*/
	69	static void mem_malloc_init (void)
	70	{
c021880a WD	71	ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
	72
	73	mem_malloc_end = dest_addr;
	74	mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
	75	mem_malloc_brk = mem_malloc_start;
	76
	77	memset ((void *) mem_malloc_start,
	78	0,
	79	mem_malloc_end - mem_malloc_start);
	80	}
	81
	82	void *sbrk (ptrdiff_t increment)
	83	{
	84	ulong old = mem_malloc_brk;
	85	ulong new = old + increment;
	86
	87	if ((new < mem_malloc_start) \|\| (new > mem_malloc_end)) {
	88	return (NULL);
	89	}
	90	mem_malloc_brk = new;
	91	return ((void *) old);
	92	}
	93
	94
	95	static int init_func_ram (void)
	96	{
c021880a WD	97	#ifdef CONFIG_BOARD_TYPES
	98	int board_type = gd->board_type;
	99	#else
	100	int board_type = 0; /* use dummy arg */
	101	#endif
	102	puts ("DRAM: ");
	103
	104	if ((gd->ram_size = initdram (board_type)) > 0) {
	105	print_size (gd->ram_size, "\n");
	106	return (0);
	107	}
	108	puts (failed);
	109	return (1);
	110	}
	111
	112	static int display_banner(void)
	113	{
	114
	115	printf ("\n\n%s\n\n", version_string);
	116	return (0);
	117	}
	118
	119	static void display_flash_config(ulong size)
	120	{
	121	puts ("Flash: ");
	122	print_size (size, "\n");
	123	}
	124
	125
	126	static int init_baudrate (void)
	127	{
f013dacf	128	char tmp[64]; /* long enough for environment variables */
c021880a WD	129	int i = getenv_r ("baudrate", tmp, sizeof (tmp));
	130
	131	gd->baudrate = (i > 0)
	132	? (int) simple_strtoul (tmp, NULL, 10)
	133	: CONFIG_BAUDRATE;
	134
	135	return (0);
	136	}
	137
	138
	139	/*
	140	* Breath some life into the board...
	141	*
	142	* The first part of initialization is running from Flash memory;
	143	* its main purpose is to initialize the RAM so that we
	144	* can relocate the monitor code to RAM.
	145	*/
	146
	147	/*
	148	* All attempts to come up with a "common" initialization sequence
	149	* that works for all boards and architectures failed: some of the
	150	* requirements are just _too_ different. To get rid of the resulting
	151	* mess of board dependend #ifdef'ed code we now make the whole
	152	* initialization sequence configurable to the user.
	153	*
	154	* The requirements for any new initalization function is simple: it
	155	* receives a pointer to the "global data" structure as it's only
	156	* argument, and returns an integer return code, where 0 means
	157	* "continue" and != 0 means "fatal error, hang the system".
	158	*/
	159	typedef int (init_fnc_t) (void);
	160
	161	init_fnc_t *init_sequence[] = {
	162	timer_init,
	163	env_init, /* initialize environment */
7cb22f97 WD	164	#ifdef CONFIG_INCA_IP
	165	incaip_set_cpuclk, /* set cpu clock according to environment variable */
	166	#endif
c021880a WD	167	init_baudrate, /* initialze baudrate settings */
	168	serial_init, /* serial communications setup */
	169	console_init_f,
	170	display_banner, /* say that we are here */
85ec0bcc	171	checkboard,
c021880a WD	172	init_func_ram,
	173	NULL,
	174	};
	175
	176
	177	void board_init_f(ulong bootflag)
	178	{
c021880a WD	179	gd_t gd_data, *id;
	180	bd_t *bd;
	181	init_fnc_t **init_fnc_ptr;
3b57fe0a	182	ulong addr, addr_sp, len = (ulong)&uboot_end - CFG_MONITOR_BASE;
c75eba3b	183	ulong *s;
3e38691e WD	184	#ifdef CONFIG_PURPLE
	185	void copy_code (ulong);
	186	#endif
c021880a	187
69459791 WD	188	/* Pointer is writable since we allocated a register for it.
69459791 WD	189	*/
c021880a	190	gd = &gd_data;
93f6a677 WD	191	/* compiler optimization barrier needed for GCC >= 3.4 */
	192	__asm__ __volatile__("": : :"memory");
	193
27b207fd	194	memset ((void *)gd, 0, sizeof (gd_t));
c021880a WD	195
	196	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
	197	if ((*init_fnc_ptr)() != 0) {
	198	hang ();
	199	}
	200	}
	201
	202	/*
	203	* Now that we have DRAM mapped and working, we can
	204	* relocate the code and continue running from DRAM.
	205	*/
	206	addr = CFG_SDRAM_BASE + gd->ram_size;
	207
69459791 WD	208	/* We can reserve some RAM "on top" here.
69459791 WD	209	*/
c021880a	210
69459791 WD	211	/* round down to next 4 kB limit.
69459791 WD	212	*/
c021880a	213	addr &= ~(4096 - 1);
69459791	214	debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
8bde7f77	215
69459791 WD	216	/* Reserve memory for U-Boot code, data & bss
	217	* round down to next 16 kB limit
	218	*/
c021880a	219	addr -= len;
3b57fe0a	220	addr &= ~(16 * 1024 - 1);
c021880a	221
69459791	222	debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
c021880a	223
69459791 WD	224	/* Reserve memory for malloc() arena.
69459791 WD	225	*/
c021880a	226	addr_sp = addr - TOTAL_MALLOC_LEN;
69459791	227	debug ("Reserving %dk for malloc() at: %08lx\n",
c021880a	228	TOTAL_MALLOC_LEN >> 10, addr_sp);
c021880a WD	229
	230	/*
	231	* (permanently) allocate a Board Info struct
	232	* and a permanent copy of the "global" data
	233	*/
	234	addr_sp -= sizeof(bd_t);
	235	bd = (bd_t *)addr_sp;
	236	gd->bd = bd;
69459791	237	debug ("Reserving %d Bytes for Board Info at: %08lx\n",
c021880a	238	sizeof(bd_t), addr_sp);
69459791	239
c021880a WD	240	addr_sp -= sizeof(gd_t);
c021880a WD	241	id = (gd_t *)addr_sp;
69459791	242	debug ("Reserving %d Bytes for Global Data at: %08lx\n",
c021880a	243	sizeof (gd_t), addr_sp);
c021880a	244
69459791 WD	245	/* Reserve memory for boot params.
69459791 WD	246	*/
c021880a WD	247	addr_sp -= CFG_BOOTPARAMS_LEN;
c021880a WD	248	bd->bi_boot_params = addr_sp;
69459791	249	debug ("Reserving %dk for boot params() at: %08lx\n",
c021880a	250	CFG_BOOTPARAMS_LEN >> 10, addr_sp);
c021880a WD	251
	252	/*
	253	* Finally, we set up a new (bigger) stack.
	254	*
	255	* Leave some safety gap for SP, force alignment on 16 byte boundary
	256	* Clear initial stack frame
	257	*/
	258	addr_sp -= 16;
	259	addr_sp &= ~0xF;
c75eba3b WD	260	s = (ulong *)addr_sp;
	261	*s-- = 0;
	262	*s-- = 0;
	263	addr_sp = (ulong)s;
69459791 WD	264	debug ("Stack Pointer at: %08lx\n", addr_sp);
69459791 WD	265
c021880a WD	266	/*
	267	* Save local variables to board info struct
	268	*/
	269	bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
	270	bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
	271	bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
	272
27b207fd	273	memcpy (id, (void *)gd, sizeof (gd_t));
3e38691e WD	274
	275	/* On the purple board we copy the code in a special way
	276	* in order to solve flash problems
	277	*/
	278	#ifdef CONFIG_PURPLE
	279	copy_code(addr);
	280	#endif
	281
c021880a WD	282	relocate_code (addr_sp, id, addr);
	283
	284	/* NOTREACHED - relocate_code() does not return */
	285	}
	286	/************************************************************************
	287	*
	288	* This is the next part if the initialization sequence: we are now
	289	* running from RAM and have a "normal" C environment, i. e. global
	290	* data can be written, BSS has been cleared, the stack size in not
	291	* that critical any more, etc.
	292	*
	293	************************************************************************
	294	*/
	295
	296	void board_init_r (gd_t *id, ulong dest_addr)
	297	{
c021880a WD	298	cmd_tbl_t *cmdtp;
	299	ulong size;
	300	extern void malloc_bin_reloc (void);
	301	#ifndef CFG_ENV_IS_NOWHERE
	302	extern char * env_name_spec;
	303	#endif
	304	char s, e;
	305	bd_t *bd;
	306	int i;
	307
	308	gd = id;
	309	gd->flags \|= GD_FLG_RELOC; /* tell others: relocation done */
	310
69459791	311	debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
c021880a WD	312
	313	gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
	314
3b57fe0a WD	315	monitor_flash_len = (ulong)&uboot_end_data - dest_addr;
3b57fe0a WD	316
c021880a WD	317	/*
	318	* We have to relocate the command table manually
	319	*/
8bde7f77	320	for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
c021880a WD	321	ulong addr;
	322
	323	addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
	324	#if 0
	325	printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
	326	cmdtp->name, (ulong) (cmdtp->cmd), addr);
	327	#endif
	328	cmdtp->cmd =
	329	(int ()(struct cmd_tbl_s , int, int, char *[]))addr;
	330
	331	addr = (ulong)(cmdtp->name) + gd->reloc_off;
	332	cmdtp->name = (char *)addr;
	333
	334	if (cmdtp->usage) {
	335	addr = (ulong)(cmdtp->usage) + gd->reloc_off;
	336	cmdtp->usage = (char *)addr;
	337	}
	338	#ifdef CFG_LONGHELP
	339	if (cmdtp->help) {
	340	addr = (ulong)(cmdtp->help) + gd->reloc_off;
	341	cmdtp->help = (char *)addr;
	342	}
	343	#endif
	344	}
	345	/* there are some other pointer constants we must deal with */
	346	#ifndef CFG_ENV_IS_NOWHERE
	347	env_name_spec += gd->reloc_off;
	348	#endif
8bde7f77	349
c021880a WD	350	/* configure available FLASH banks */
	351	size = flash_init();
	352	display_flash_config (size);
	353
	354	bd = gd->bd;
	355	bd->bi_flashstart = CFG_FLASH_BASE;
	356	bd->bi_flashsize = size;
	357	#if CFG_MONITOR_BASE == CFG_FLASH_BASE
3b57fe0a	358	bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */
c021880a WD	359	#else
	360	bd->bi_flashoffset = 0;
	361	#endif
	362
	363	/* initialize malloc() area */
	364	mem_malloc_init();
	365	malloc_bin_reloc();
	366
	367	/* relocate environment function pointers etc. */
	368	env_relocate();
	369
	370	/* board MAC address */
	371	s = getenv ("ethaddr");
	372	for (i = 0; i < 6; ++i) {
	373	bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
	374	if (s)
	375	s = (*e) ? e + 1 : e;
	376	}
	377
	378	/* IP Address */
	379	bd->bi_ip_addr = getenv_IPaddr("ipaddr");
	380
f4863a7a WD	381	#if defined(CONFIG_PCI)
	382	/*
	383	* Do pci configuration
	384	*/
	385	pci_init();
	386	#endif
	387
c021880a WD	388	/ leave this here (after malloc(), environment and PCI are working) /
	389	/* Initialize devices */
	390	devices_init ();
	391
27b207fd	392	jumptable_init ();
c021880a WD	393
	394	/* Initialize the console (after the relocation and devices init) */
	395	console_init_r ();
	396	/ /
	397
3e38691e WD	398	/* Initialize from environment */
	399	if ((s = getenv ("loadaddr")) != NULL) {
	400	load_addr = simple_strtoul (s, NULL, 16);
	401	}
	402	#if (CONFIG_COMMANDS & CFG_CMD_NET)
	403	if ((s = getenv ("bootfile")) != NULL) {
	404	copy_filename (BootFile, s, sizeof (BootFile));
	405	}
	406	#endif /* CFG_CMD_NET */
	407
	408	#if defined(CONFIG_MISC_INIT_R)
	409	/* miscellaneous platform dependent initialisations */
	410	misc_init_r ();
	411	#endif
	412
63ff004c MB	413	#if (CONFIG_COMMANDS & CFG_CMD_NET)
63ff004c MB	414	#if defined(CONFIG_NET_MULTI)
c021880a	415	puts ("Net: ");
63ff004c	416	#endif
c021880a WD	417	eth_initialize(gd->bd);
	418	#endif
	419
	420	/* main_loop() can return to retry autoboot, if so just run it again. */
	421	for (;;) {
	422	main_loop ();
	423	}
	424
	425	/* NOTREACHED - no way out of command loop except booting */
	426	}
	427
	428	void hang (void)
	429	{
	430	puts ("### ERROR ### Please RESET the board ###\n");
	431	for (;;);
	432	}