[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 <syscall.h>
#include <version.h>
#include <net.h>
#include <environment.h>

#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 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)
{
	DECLARE_GLOBAL_DATA_PTR;

	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)
{
	DECLARE_GLOBAL_DATA_PTR;

#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)
{
	DECLARE_GLOBAL_DATA_PTR;

	uchar 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 */
	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)
{
	DECLARE_GLOBAL_DATA_PTR;

	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;
#ifdef CONFIG_PURPLE
	void copy_code (ulong);
#endif

		/* Pointer is writable since we allocated a register for it.
		 */
	gd = &gd_data;
	memset (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);
#ifdef DEBUG
	printf ("Top of RAM usable for U-Boot at: %08lx\n", addr);
#endif

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

#ifdef DEBUG
	printf ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
#endif

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

	/*
	 * (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;
#ifdef DEBUG
	printf ("Reserving %d Bytes for Board Info at: %08lx\n",
			sizeof(bd_t), addr_sp);
#endif
	addr_sp -= sizeof(gd_t);
	id = (gd_t *)addr_sp;
#ifdef DEBUG
	printf ("Reserving %d Bytes for Global Data at: %08lx\n",
			sizeof (gd_t), addr_sp);
#endif

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

	/*
	 * 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;
	*((ulong *) addr_sp)-- = 0;
	*((ulong *) addr_sp)-- = 0;
#ifdef DEBUG
	printf ("Stack Pointer at: %08lx\n", addr_sp);
#endif
	/*
	 * 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, 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)
{
	DECLARE_GLOBAL_DATA_PTR;
	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 */

#ifdef DEBUG
	printf ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
#endif

	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");

/** leave this here (after malloc(), environment and PCI are working) **/
	/* Initialize devices */
	devices_init ();

	/* allocate syscalls table (console_init_r will fill it in */
	syscall_tbl = (void **) malloc (NR_SYSCALLS * sizeof (void *));

	/* 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) && defined(CONFIG_NET_MULTI)
	puts ("Net:   ");
	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>
	28	#include <syscall.h>
	29	#include <version.h>
	30	#include <net.h>
	31	#include <environment.h>
	32
	33	#if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) \|\| \
	34	(CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) \|\| \
	35	defined(CFG_ENV_IS_IN_NVRAM)
	36	#define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE)
	37	#else
	38	#define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
	39	#endif
	40
	41	#undef DEBUG
	42
	43	extern int timer_init(void);
	44
3b57fe0a WD	45	extern ulong uboot_end_data;
	46	extern ulong uboot_end;
	47
	48	ulong monitor_flash_len;
	49
c021880a WD	50	const char version_string[] =
	51	U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";
	52
	53	static char failed = " failed *\n";
	54
	55	/*
	56	* Begin and End of memory area for malloc(), and current "brk"
	57	*/
	58	static ulong mem_malloc_start;
	59	static ulong mem_malloc_end;
	60	static ulong mem_malloc_brk;
	61
	62
	63	/*
	64	* The Malloc area is immediately below the monitor copy in DRAM
	65	*/
	66	static void mem_malloc_init (void)
	67	{
	68	DECLARE_GLOBAL_DATA_PTR;
	69
	70	ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
	71
	72	mem_malloc_end = dest_addr;
	73	mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
	74	mem_malloc_brk = mem_malloc_start;
	75
	76	memset ((void *) mem_malloc_start,
	77	0,
	78	mem_malloc_end - mem_malloc_start);
	79	}
	80
	81	void *sbrk (ptrdiff_t increment)
	82	{
	83	ulong old = mem_malloc_brk;
	84	ulong new = old + increment;
	85
	86	if ((new < mem_malloc_start) \|\| (new > mem_malloc_end)) {
	87	return (NULL);
	88	}
	89	mem_malloc_brk = new;
	90	return ((void *) old);
	91	}
	92
	93
	94	static int init_func_ram (void)
	95	{
	96	DECLARE_GLOBAL_DATA_PTR;
	97
	98	#ifdef CONFIG_BOARD_TYPES
	99	int board_type = gd->board_type;
	100	#else
	101	int board_type = 0; /* use dummy arg */
	102	#endif
	103	puts ("DRAM: ");
	104
	105	if ((gd->ram_size = initdram (board_type)) > 0) {
	106	print_size (gd->ram_size, "\n");
	107	return (0);
	108	}
	109	puts (failed);
	110	return (1);
	111	}
	112
	113	static int display_banner(void)
114	{
115
116	printf ("\n\n%s\n\n", version_string);
117	return (0);
118	}
119
120	static void display_flash_config(ulong size)
121	{
122	puts ("Flash: ");
123	print_size (size, "\n");
124	}
125
126
127	static int init_baudrate (void)
128	{
129	DECLARE_GLOBAL_DATA_PTR;
130
131	uchar tmp[64]; /* long enough for environment variables */
132	int i = getenv_r ("baudrate", tmp, sizeof (tmp));
133
134	gd->baudrate = (i > 0)
135	? (int) simple_strtoul (tmp, NULL, 10)
136	: CONFIG_BAUDRATE;
137
138	return (0);
139	}
140
141
142	/*
143	* Breath some life into the board...
144	*
145	* The first part of initialization is running from Flash memory;
146	* its main purpose is to initialize the RAM so that we
147	* can relocate the monitor code to RAM.
148	*/
149
150	/*
151	* All attempts to come up with a "common" initialization sequence
152	* that works for all boards and architectures failed: some of the
153	* requirements are just _too_ different. To get rid of the resulting
154	* mess of board dependend #ifdef'ed code we now make the whole
155	* initialization sequence configurable to the user.
156	*
157	* The requirements for any new initalization function is simple: it
158	* receives a pointer to the "global data" structure as it's only
159	* argument, and returns an integer return code, where 0 means
160	* "continue" and != 0 means "fatal error, hang the system".
161	*/
162	typedef int (init_fnc_t) (void);
163
164	init_fnc_t *init_sequence[] = {
165	timer_init,
166	env_init, /* initialize environment */
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	{
	179	DECLARE_GLOBAL_DATA_PTR;
	180
	181	gd_t gd_data, *id;
	182	bd_t *bd;
	183	init_fnc_t **init_fnc_ptr;
3b57fe0a	184	ulong addr, addr_sp, len = (ulong)&uboot_end - CFG_MONITOR_BASE;
3e38691e WD	185	#ifdef CONFIG_PURPLE
	186	void copy_code (ulong);
	187	#endif
c021880a WD	188
	189	/* Pointer is writable since we allocated a register for it.
	190	*/
	191	gd = &gd_data;
	192	memset (gd, 0, sizeof (gd_t));
	193
	194	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
	195	if ((*init_fnc_ptr)() != 0) {
	196	hang ();
	197	}
	198	}
	199
	200	/*
	201	* Now that we have DRAM mapped and working, we can
	202	* relocate the code and continue running from DRAM.
	203	*/
	204	addr = CFG_SDRAM_BASE + gd->ram_size;
	205
	206	/* We can reserve some RAM "on top" here.
	207	*/
	208
	209	/* round down to next 4 kB limit.
	210	*/
	211	addr &= ~(4096 - 1);
	212	#ifdef DEBUG
	213	printf ("Top of RAM usable for U-Boot at: %08lx\n", addr);
	214	#endif
8bde7f77	215
c021880a	216	/* Reserve memory for U-Boot code, data & bss
3b57fe0a	217	* round down to next 16 kB limit
c021880a WD	218	*/
c021880a WD	219	addr -= len;
3b57fe0a	220	addr &= ~(16 * 1024 - 1);
c021880a WD	221
	222	#ifdef DEBUG
	223	printf ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
	224	#endif
	225
	226	/* Reserve memory for malloc() arena.
	227	*/
	228	addr_sp = addr - TOTAL_MALLOC_LEN;
	229	#ifdef DEBUG
	230	printf ("Reserving %dk for malloc() at: %08lx\n",
	231	TOTAL_MALLOC_LEN >> 10, addr_sp);
	232	#endif
	233
	234	/*
	235	* (permanently) allocate a Board Info struct
	236	* and a permanent copy of the "global" data
	237	*/
	238	addr_sp -= sizeof(bd_t);
	239	bd = (bd_t *)addr_sp;
	240	gd->bd = bd;
	241	#ifdef DEBUG
	242	printf ("Reserving %d Bytes for Board Info at: %08lx\n",
	243	sizeof(bd_t), addr_sp);
	244	#endif
	245	addr_sp -= sizeof(gd_t);
	246	id = (gd_t *)addr_sp;
	247	#ifdef DEBUG
	248	printf ("Reserving %d Bytes for Global Data at: %08lx\n",
	249	sizeof (gd_t), addr_sp);
	250	#endif
	251
	252	/* Reserve memory for boot params.
	253	*/
	254	addr_sp -= CFG_BOOTPARAMS_LEN;
	255	bd->bi_boot_params = addr_sp;
	256	#ifdef DEBUG
	257	printf ("Reserving %dk for malloc() at: %08lx\n",
	258	CFG_BOOTPARAMS_LEN >> 10, addr_sp);
	259	#endif
	260
	261	/*
	262	* Finally, we set up a new (bigger) stack.
	263	*
	264	* Leave some safety gap for SP, force alignment on 16 byte boundary
	265	* Clear initial stack frame
	266	*/
	267	addr_sp -= 16;
	268	addr_sp &= ~0xF;
	269	((ulong ) addr_sp)-- = 0;
	270	((ulong ) addr_sp)-- = 0;
	271	#ifdef DEBUG
	272	printf ("Stack Pointer at: %08lx\n", addr_sp);
	273	#endif
	274	/*
	275	* Save local variables to board info struct
	276	*/
	277	bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
	278	bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
	279	bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
	280
	281	memcpy (id, gd, sizeof (gd_t));
3e38691e WD	282
	283	/* On the purple board we copy the code in a special way
	284	* in order to solve flash problems
	285	*/
	286	#ifdef CONFIG_PURPLE
	287	copy_code(addr);
	288	#endif
	289
c021880a WD	290	relocate_code (addr_sp, id, addr);
	291
	292	/* NOTREACHED - relocate_code() does not return */
	293	}
	294	/************************************************************************
	295	*
	296	* This is the next part if the initialization sequence: we are now
	297	* running from RAM and have a "normal" C environment, i. e. global
	298	* data can be written, BSS has been cleared, the stack size in not
	299	* that critical any more, etc.
	300	*
	301	************************************************************************
	302	*/
	303
	304	void board_init_r (gd_t *id, ulong dest_addr)
	305	{
	306	DECLARE_GLOBAL_DATA_PTR;
c021880a WD	307	cmd_tbl_t *cmdtp;
	308	ulong size;
	309	extern void malloc_bin_reloc (void);
	310	#ifndef CFG_ENV_IS_NOWHERE
	311	extern char * env_name_spec;
	312	#endif
	313	char s, e;
	314	bd_t *bd;
	315	int i;
	316
	317	gd = id;
	318	gd->flags \|= GD_FLG_RELOC; /* tell others: relocation done */
	319
	320	#ifdef DEBUG
	321	printf ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
	322	#endif
	323
	324	gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
	325
3b57fe0a WD	326	monitor_flash_len = (ulong)&uboot_end_data - dest_addr;
3b57fe0a WD	327
c021880a WD	328	/*
	329	* We have to relocate the command table manually
	330	*/
8bde7f77	331	for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
c021880a WD	332	ulong addr;
	333
	334	addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
	335	#if 0
	336	printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
	337	cmdtp->name, (ulong) (cmdtp->cmd), addr);
	338	#endif
	339	cmdtp->cmd =
	340	(int ()(struct cmd_tbl_s , int, int, char *[]))addr;
	341
	342	addr = (ulong)(cmdtp->name) + gd->reloc_off;
	343	cmdtp->name = (char *)addr;
	344
	345	if (cmdtp->usage) {
	346	addr = (ulong)(cmdtp->usage) + gd->reloc_off;
	347	cmdtp->usage = (char *)addr;
	348	}
	349	#ifdef CFG_LONGHELP
	350	if (cmdtp->help) {
	351	addr = (ulong)(cmdtp->help) + gd->reloc_off;
	352	cmdtp->help = (char *)addr;
	353	}
	354	#endif
	355	}
	356	/* there are some other pointer constants we must deal with */
	357	#ifndef CFG_ENV_IS_NOWHERE
	358	env_name_spec += gd->reloc_off;
	359	#endif
8bde7f77	360
c021880a WD	361	/* configure available FLASH banks */
	362	size = flash_init();
	363	display_flash_config (size);
	364
	365	bd = gd->bd;
	366	bd->bi_flashstart = CFG_FLASH_BASE;
	367	bd->bi_flashsize = size;
	368	#if CFG_MONITOR_BASE == CFG_FLASH_BASE
3b57fe0a	369	bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */
c021880a WD	370	#else
	371	bd->bi_flashoffset = 0;
	372	#endif
	373
	374	/* initialize malloc() area */
	375	mem_malloc_init();
	376	malloc_bin_reloc();
	377
	378	/* relocate environment function pointers etc. */
	379	env_relocate();
	380
	381	/* board MAC address */
	382	s = getenv ("ethaddr");
	383	for (i = 0; i < 6; ++i) {
	384	bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
	385	if (s)
	386	s = (*e) ? e + 1 : e;
	387	}
	388
	389	/* IP Address */
	390	bd->bi_ip_addr = getenv_IPaddr("ipaddr");
	391
	392	/ leave this here (after malloc(), environment and PCI are working) /
	393	/* Initialize devices */
	394	devices_init ();
	395
	396	/* allocate syscalls table (console_init_r will fill it in */
	397	syscall_tbl = (void *) malloc (NR_SYSCALLS sizeof (void *));
	398
	399	/* Initialize the console (after the relocation and devices init) */
	400	console_init_r ();
	401	/ /
	402
3e38691e WD	403	/* Initialize from environment */
	404	if ((s = getenv ("loadaddr")) != NULL) {
	405	load_addr = simple_strtoul (s, NULL, 16);
	406	}
	407	#if (CONFIG_COMMANDS & CFG_CMD_NET)
	408	if ((s = getenv ("bootfile")) != NULL) {
	409	copy_filename (BootFile, s, sizeof (BootFile));
	410	}
	411	#endif /* CFG_CMD_NET */
	412
	413	#if defined(CONFIG_MISC_INIT_R)
	414	/* miscellaneous platform dependent initialisations */
	415	misc_init_r ();
	416	#endif
	417
c021880a WD	418	#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
	419	puts ("Net: ");
	420	eth_initialize(gd->bd);
	421	#endif
	422
	423	/* main_loop() can return to retry autoboot, if so just run it again. */
	424	for (;;) {
	425	main_loop ();
	426	}
	427
	428	/* NOTREACHED - no way out of command loop except booting */
	429	}
	430
	431	void hang (void)
	432	{
	433	puts ("### ERROR ### Please RESET the board ###\n");
	434	for (;;);
	435	}