[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 <timestamp.h>
#include <version.h>
#include <net.h>
#include <environment.h>
#include <nand.h>
#include <onenand_uboot.h>
#include <spi.h>

DECLARE_GLOBAL_DATA_PTR;

#if ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
      (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
    defined(CONFIG_ENV_IS_IN_NVRAM)
#define	TOTAL_MALLOC_LEN	(CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
#else
#define	TOTAL_MALLOC_LEN	CONFIG_SYS_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" (" U_BOOT_DATE " - " U_BOOT_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;

/*
 * mips_io_port_base is the begin of the address space to which x86 style
 * I/O ports are mapped.
 */
unsigned long mips_io_port_base = -1;

int __board_early_init_f(void)
{
	/*
	 * Nothing to do in this dummy implementation
	 */
	return 0;
}
int board_early_init_f(void) __attribute__((weak, alias("__board_early_init_f")));

/*
 * The Malloc area is immediately below the monitor copy in DRAM
 */
static void mem_malloc_init (void)
{
	ulong dest_addr = CONFIG_SYS_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);
}

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

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[] = {
	board_early_init_f,
	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 - CONFIG_SYS_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 = CONFIG_SYS_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 %zu Bytes for Board Info at: %08lx\n",
			sizeof(bd_t), addr_sp);

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

	/* Reserve memory for boot params.
	 */
	addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
	bd->bi_boot_params = addr_sp;
	debug ("Reserving %dk for boot params() at: %08lx\n",
			CONFIG_SYS_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	= CONFIG_SYS_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;
#ifndef CONFIG_SYS_NO_FLASH
	ulong size;
#endif
	extern void malloc_bin_reloc (void);
#ifndef CONFIG_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 - CONFIG_SYS_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	CONFIG_SYS_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 CONFIG_ENV_IS_NOWHERE
	env_name_spec += gd->reloc_off;
#endif

	bd = gd->bd;

#ifndef CONFIG_SYS_NO_FLASH
	/* configure available FLASH banks */
	size = flash_init();
	display_flash_config (size);
	bd->bi_flashsize = size;
#endif

	bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_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();

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

#if defined(CONFIG_CMD_ONENAND)
	onenand_init();
#endif

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

	/* 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 defined(CONFIG_CMD_NET)
	if ((s = getenv ("bootfile")) != NULL) {
		copy_filename (BootFile, s, sizeof (BootFile));
	}
#endif

#ifdef CONFIG_CMD_SPI
	puts ("SPI:   ");
	spi_init ();		/* go init the SPI */
	puts ("ready\n");
#endif

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

#if defined(CONFIG_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>
561858ee	28	#include <timestamp.h>
c021880a WD	29	#include <version.h>
	30	#include <net.h>
	31	#include <environment.h>
e996bc33	32	#include <nand.h>
9d23fc58	33	#include <onenand_uboot.h>
89a1550e	34	#include <spi.h>
c021880a	35
c75eba3b WD	36	DECLARE_GLOBAL_DATA_PTR;
c75eba3b WD	37
6d0f6bcf JCPV	38	#if ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) \|\| \
6d0f6bcf JCPV	39	(CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) \|\| \
9314cee6	40	defined(CONFIG_ENV_IS_IN_NVRAM)
6d0f6bcf	41	#define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
c021880a	42	#else
6d0f6bcf	43	#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
c021880a WD	44	#endif
	45
	46	#undef DEBUG
	47
	48	extern int timer_init(void);
	49
7cb22f97 WD	50	extern int incaip_set_cpuclk(void);
7cb22f97 WD	51
3b57fe0a WD	52	extern ulong uboot_end_data;
	53	extern ulong uboot_end;
	54
	55	ulong monitor_flash_len;
	56
c021880a	57	const char version_string[] =
561858ee	58	U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")";
c021880a WD	59
	60	static char failed = " failed *\n";
	61
	62	/*
	63	* Begin and End of memory area for malloc(), and current "brk"
	64	*/
	65	static ulong mem_malloc_start;
	66	static ulong mem_malloc_end;
	67	static ulong mem_malloc_brk;
	68
5c15010e JCPV	69	/*
	70	* mips_io_port_base is the begin of the address space to which x86 style
	71	* I/O ports are mapped.
	72	*/
	73	unsigned long mips_io_port_base = -1;
c021880a	74
db08ecaa SR	75	int __board_early_init_f(void)
	76	{
	77	/*
	78	* Nothing to do in this dummy implementation
	79	*/
	80	return 0;
	81	}
	82	int board_early_init_f(void) __attribute__((weak, alias("__board_early_init_f")));
	83
c021880a WD	84	/*
	85	* The Malloc area is immediately below the monitor copy in DRAM
	86	*/
	87	static void mem_malloc_init (void)
	88	{
6d0f6bcf	89	ulong dest_addr = CONFIG_SYS_MONITOR_BASE + gd->reloc_off;
c021880a WD	90
	91	mem_malloc_end = dest_addr;
	92	mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
	93	mem_malloc_brk = mem_malloc_start;
	94
	95	memset ((void *) mem_malloc_start,
	96	0,
	97	mem_malloc_end - mem_malloc_start);
	98	}
	99
	100	void *sbrk (ptrdiff_t increment)
	101	{
	102	ulong old = mem_malloc_brk;
	103	ulong new = old + increment;
	104
	105	if ((new < mem_malloc_start) \|\| (new > mem_malloc_end)) {
	106	return (NULL);
	107	}
	108	mem_malloc_brk = new;
	109	return ((void *) old);
	110	}
	111
	112
	113	static int init_func_ram (void)
	114	{
c021880a WD	115	#ifdef CONFIG_BOARD_TYPES
	116	int board_type = gd->board_type;
	117	#else
	118	int board_type = 0; /* use dummy arg */
	119	#endif
	120	puts ("DRAM: ");
	121
	122	if ((gd->ram_size = initdram (board_type)) > 0) {
	123	print_size (gd->ram_size, "\n");
	124	return (0);
	125	}
	126	puts (failed);
	127	return (1);
	128	}
	129
	130	static int display_banner(void)
	131	{
	132
	133	printf ("\n\n%s\n\n", version_string);
	134	return (0);
	135	}
	136
6d0f6bcf	137	#ifndef CONFIG_SYS_NO_FLASH
c021880a WD	138	static void display_flash_config(ulong size)
	139	{
	140	puts ("Flash: ");
	141	print_size (size, "\n");
	142	}
beeccf7a	143	#endif
c021880a WD	144
	145	static int init_baudrate (void)
	146	{
f013dacf	147	char tmp[64]; /* long enough for environment variables */
c021880a WD	148	int i = getenv_r ("baudrate", tmp, sizeof (tmp));
	149
	150	gd->baudrate = (i > 0)
	151	? (int) simple_strtoul (tmp, NULL, 10)
	152	: CONFIG_BAUDRATE;
	153
	154	return (0);
	155	}
	156
	157
	158	/*
	159	* Breath some life into the board...
	160	*
	161	* The first part of initialization is running from Flash memory;
	162	* its main purpose is to initialize the RAM so that we
	163	* can relocate the monitor code to RAM.
	164	*/
	165
	166	/*
	167	* All attempts to come up with a "common" initialization sequence
	168	* that works for all boards and architectures failed: some of the
	169	* requirements are just _too_ different. To get rid of the resulting
	170	* mess of board dependend #ifdef'ed code we now make the whole
	171	* initialization sequence configurable to the user.
	172	*
	173	* The requirements for any new initalization function is simple: it
	174	* receives a pointer to the "global data" structure as it's only
	175	* argument, and returns an integer return code, where 0 means
	176	* "continue" and != 0 means "fatal error, hang the system".
	177	*/
	178	typedef int (init_fnc_t) (void);
	179
	180	init_fnc_t *init_sequence[] = {
db08ecaa	181	board_early_init_f,
c021880a WD	182	timer_init,
c021880a WD	183	env_init, /* initialize environment */
7cb22f97 WD	184	#ifdef CONFIG_INCA_IP
	185	incaip_set_cpuclk, /* set cpu clock according to environment variable */
	186	#endif
c021880a WD	187	init_baudrate, /* initialze baudrate settings */
	188	serial_init, /* serial communications setup */
	189	console_init_f,
	190	display_banner, /* say that we are here */
85ec0bcc	191	checkboard,
c021880a WD	192	init_func_ram,
	193	NULL,
	194	};
	195
	196
	197	void board_init_f(ulong bootflag)
	198	{
c021880a WD	199	gd_t gd_data, *id;
	200	bd_t *bd;
	201	init_fnc_t **init_fnc_ptr;
6d0f6bcf	202	ulong addr, addr_sp, len = (ulong)&uboot_end - CONFIG_SYS_MONITOR_BASE;
c75eba3b	203	ulong *s;
3e38691e WD	204	#ifdef CONFIG_PURPLE
	205	void copy_code (ulong);
	206	#endif
c021880a	207
69459791 WD	208	/* Pointer is writable since we allocated a register for it.
69459791 WD	209	*/
c021880a	210	gd = &gd_data;
93f6a677 WD	211	/* compiler optimization barrier needed for GCC >= 3.4 */
	212	__asm__ __volatile__("": : :"memory");
	213
27b207fd	214	memset ((void *)gd, 0, sizeof (gd_t));
c021880a WD	215
	216	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
	217	if ((*init_fnc_ptr)() != 0) {
	218	hang ();
	219	}
	220	}
	221
	222	/*
	223	* Now that we have DRAM mapped and working, we can
	224	* relocate the code and continue running from DRAM.
	225	*/
6d0f6bcf	226	addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
c021880a	227
69459791 WD	228	/* We can reserve some RAM "on top" here.
69459791 WD	229	*/
c021880a	230
69459791 WD	231	/* round down to next 4 kB limit.
69459791 WD	232	*/
c021880a	233	addr &= ~(4096 - 1);
69459791	234	debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
8bde7f77	235
69459791 WD	236	/* Reserve memory for U-Boot code, data & bss
	237	* round down to next 16 kB limit
	238	*/
c021880a	239	addr -= len;
3b57fe0a	240	addr &= ~(16 * 1024 - 1);
c021880a	241
69459791	242	debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
c021880a	243
69459791 WD	244	/* Reserve memory for malloc() arena.
69459791 WD	245	*/
c021880a	246	addr_sp = addr - TOTAL_MALLOC_LEN;
69459791	247	debug ("Reserving %dk for malloc() at: %08lx\n",
c021880a	248	TOTAL_MALLOC_LEN >> 10, addr_sp);
c021880a WD	249
	250	/*
	251	* (permanently) allocate a Board Info struct
	252	* and a permanent copy of the "global" data
	253	*/
	254	addr_sp -= sizeof(bd_t);
	255	bd = (bd_t *)addr_sp;
	256	gd->bd = bd;
b64f190b	257	debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
c021880a	258	sizeof(bd_t), addr_sp);
69459791	259
c021880a WD	260	addr_sp -= sizeof(gd_t);
c021880a WD	261	id = (gd_t *)addr_sp;
b64f190b	262	debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
c021880a	263	sizeof (gd_t), addr_sp);
c021880a	264
beeccf7a	265	/* Reserve memory for boot params.
69459791	266	*/
6d0f6bcf	267	addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
c021880a	268	bd->bi_boot_params = addr_sp;
69459791	269	debug ("Reserving %dk for boot params() at: %08lx\n",
6d0f6bcf	270	CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp);
c021880a WD	271
	272	/*
	273	* Finally, we set up a new (bigger) stack.
	274	*
	275	* Leave some safety gap for SP, force alignment on 16 byte boundary
	276	* Clear initial stack frame
	277	*/
	278	addr_sp -= 16;
	279	addr_sp &= ~0xF;
c75eba3b WD	280	s = (ulong *)addr_sp;
	281	*s-- = 0;
	282	*s-- = 0;
	283	addr_sp = (ulong)s;
69459791 WD	284	debug ("Stack Pointer at: %08lx\n", addr_sp);
69459791 WD	285
c021880a WD	286	/*
	287	* Save local variables to board info struct
	288	*/
6d0f6bcf	289	bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
c021880a WD	290	bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
	291	bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
	292
27b207fd	293	memcpy (id, (void *)gd, sizeof (gd_t));
3e38691e WD	294
	295	/* On the purple board we copy the code in a special way
	296	* in order to solve flash problems
	297	*/
	298	#ifdef CONFIG_PURPLE
	299	copy_code(addr);
	300	#endif
	301
c021880a WD	302	relocate_code (addr_sp, id, addr);
	303
	304	/* NOTREACHED - relocate_code() does not return */
	305	}
	306	/************************************************************************
	307	*
	308	* This is the next part if the initialization sequence: we are now
	309	* running from RAM and have a "normal" C environment, i. e. global
	310	* data can be written, BSS has been cleared, the stack size in not
	311	* that critical any more, etc.
	312	*
	313	************************************************************************
	314	*/
	315
	316	void board_init_r (gd_t *id, ulong dest_addr)
	317	{
c021880a	318	cmd_tbl_t *cmdtp;
6d0f6bcf	319	#ifndef CONFIG_SYS_NO_FLASH
c021880a	320	ulong size;
beeccf7a	321	#endif
c021880a	322	extern void malloc_bin_reloc (void);
93f6d725	323	#ifndef CONFIG_ENV_IS_NOWHERE
c021880a WD	324	extern char * env_name_spec;
	325	#endif
	326	char s, e;
	327	bd_t *bd;
	328	int i;
	329
	330	gd = id;
	331	gd->flags \|= GD_FLG_RELOC; /* tell others: relocation done */
	332
69459791	333	debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
c021880a	334
6d0f6bcf	335	gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
c021880a	336
3b57fe0a WD	337	monitor_flash_len = (ulong)&uboot_end_data - dest_addr;
3b57fe0a WD	338
c021880a WD	339	/*
	340	* We have to relocate the command table manually
	341	*/
beeccf7a	342	for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
c021880a WD	343	ulong addr;
	344
	345	addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
	346	#if 0
	347	printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
	348	cmdtp->name, (ulong) (cmdtp->cmd), addr);
	349	#endif
	350	cmdtp->cmd =
	351	(int ()(struct cmd_tbl_s , int, int, char *[]))addr;
	352
	353	addr = (ulong)(cmdtp->name) + gd->reloc_off;
	354	cmdtp->name = (char *)addr;
	355
	356	if (cmdtp->usage) {
	357	addr = (ulong)(cmdtp->usage) + gd->reloc_off;
	358	cmdtp->usage = (char *)addr;
	359	}
6d0f6bcf	360	#ifdef CONFIG_SYS_LONGHELP
c021880a WD	361	if (cmdtp->help) {
	362	addr = (ulong)(cmdtp->help) + gd->reloc_off;
	363	cmdtp->help = (char *)addr;
	364	}
	365	#endif
	366	}
	367	/* there are some other pointer constants we must deal with */
93f6d725	368	#ifndef CONFIG_ENV_IS_NOWHERE
c021880a WD	369	env_name_spec += gd->reloc_off;
c021880a WD	370	#endif
8bde7f77	371
beeccf7a JCPV	372	bd = gd->bd;
beeccf7a JCPV	373
6d0f6bcf	374	#ifndef CONFIG_SYS_NO_FLASH
c021880a WD	375	/* configure available FLASH banks */
	376	size = flash_init();
	377	display_flash_config (size);
beeccf7a JCPV	378	bd->bi_flashsize = size;
beeccf7a JCPV	379	#endif
c021880a	380
6d0f6bcf JCPV	381	bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
6d0f6bcf JCPV	382	#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
3b57fe0a	383	bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */
c021880a WD	384	#else
	385	bd->bi_flashoffset = 0;
	386	#endif
	387
	388	/* initialize malloc() area */
	389	mem_malloc_init();
	390	malloc_bin_reloc();
	391
9d23fc58 SR	392	#ifdef CONFIG_CMD_NAND
	393	puts ("NAND: ");
	394	nand_init (); /* go init the NAND */
	395	#endif
	396
	397	#if defined(CONFIG_CMD_ONENAND)
	398	onenand_init();
	399	#endif
	400
c021880a WD	401	/* relocate environment function pointers etc. */
	402	env_relocate();
	403
c021880a WD	404	/* IP Address */
	405	bd->bi_ip_addr = getenv_IPaddr("ipaddr");
	406
f4863a7a WD	407	#if defined(CONFIG_PCI)
	408	/*
	409	* Do pci configuration
	410	*/
	411	pci_init();
	412	#endif
	413
c021880a WD	414	/ leave this here (after malloc(), environment and PCI are working) /
	415	/* Initialize devices */
	416	devices_init ();
	417
27b207fd	418	jumptable_init ();
c021880a WD	419
	420	/* Initialize the console (after the relocation and devices init) */
	421	console_init_r ();
	422	/ /
	423
3e38691e WD	424	/* Initialize from environment */
	425	if ((s = getenv ("loadaddr")) != NULL) {
	426	load_addr = simple_strtoul (s, NULL, 16);
	427	}
7def6b34	428	#if defined(CONFIG_CMD_NET)
3e38691e WD	429	if ((s = getenv ("bootfile")) != NULL) {
	430	copy_filename (BootFile, s, sizeof (BootFile));
	431	}
b3aff0cb	432	#endif
3e38691e	433
89a1550e JM	434	#ifdef CONFIG_CMD_SPI
	435	puts ("SPI: ");
	436	spi_init (); /* go init the SPI */
	437	puts ("ready\n");
	438	#endif
	439
3e38691e WD	440	#if defined(CONFIG_MISC_INIT_R)
	441	/* miscellaneous platform dependent initialisations */
	442	misc_init_r ();
	443	#endif
	444
7def6b34	445	#if defined(CONFIG_CMD_NET)
63ff004c	446	#if defined(CONFIG_NET_MULTI)
c021880a	447	puts ("Net: ");
63ff004c	448	#endif
c021880a WD	449	eth_initialize(gd->bd);
	450	#endif
	451
	452	/* main_loop() can return to retry autoboot, if so just run it again. */
	453	for (;;) {
	454	main_loop ();
	455	}
	456
	457	/* NOTREACHED - no way out of command loop except booting */
	458	}
	459
	460	void hang (void)
	461	{
	462	puts ("### ERROR ### Please RESET the board ###\n");
	463	for (;;);
	464	}