arch/x86/lib/board.c - filogic/uboot - Gitiles

 /*
  * (C) Copyright 2008-2011
  * Graeme Russ, <graeme.russ@gmail.com>
  *
  * (C) Copyright 2002
  * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
  *
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
  *
  * (C) Copyright 2002
  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
  * Marius Groeger <mgroeger@sysgo.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 <watchdog.h>
 #include <command.h>
 #include <stdio_dev.h>
 #include <version.h>
 #include <malloc.h>
 #include <net.h>
 #include <ide.h>
 #include <serial.h>
 #include <asm/u-boot-x86.h>
 #include <elf.h>

 #ifdef CONFIG_BITBANGMII
 #include <miiphy.h>
 #endif

 /*
  * Pointer to initial global data area
  *
  * Here we initialize it.
  */
 #undef	XTRN_DECLARE_GLOBAL_DATA_PTR
 #define XTRN_DECLARE_GLOBAL_DATA_PTR	/* empty = allocate here */
 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);

 /************************************************************************
  * Init Utilities							*
  ************************************************************************
  * Some of this code should be moved into the core functions,
  * or dropped completely,
  * but let's get it working (again) first...
  */
 static int init_baudrate(void)
 {
 	gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
 	return 0;
 }

 static int display_banner(void)
 {

 	printf("\n\n%s\n\n", version_string);

 	return 0;
 }

 static int display_dram_config(void)
 {
 	int i;

 	puts("DRAM Configuration:\n");

 	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
 		printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
 		print_size(gd->bd->bi_dram[i].size, "\n");
 	}

 	return 0;
 }

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

 /*
  * Breath some life into the board...
  *
  * Initialize an SMC for serial comms, and carry out some hardware
  * tests.
  *
  * 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);

 static int calculate_relocation_address(void);
 static int copy_uboot_to_ram(void);
 static int clear_bss(void);
 static int do_elf_reloc_fixups(void);

 init_fnc_t *init_sequence_f[] = {
 	cpu_init_f,
 	board_early_init_f,
 	env_init,
 	init_baudrate,
 	serial_init,
 	console_init_f,
 	dram_init_f,
 	calculate_relocation_address,
 	copy_uboot_to_ram,
 	clear_bss,
 	do_elf_reloc_fixups,

 	NULL,
 };

 init_fnc_t *init_sequence_r[] = {
 	cpu_init_r,		/* basic cpu dependent setup */
 	board_early_init_r,	/* basic board dependent setup */
 	dram_init,		/* configure available RAM banks */
 	interrupt_init,		/* set up exceptions */
 	timer_init,
 	display_banner,
 	display_dram_config,

 	NULL,
 };

 gd_t *gd;

 static int calculate_relocation_address(void)
 {
 	ulong text_start = (ulong)&__text_start;
 	ulong bss_end = (ulong)&__bss_end;
 	ulong dest_addr;
 	ulong rel_offset;

 	/* Calculate destination RAM Address and relocation offset */
 	dest_addr = gd->ram_size;
 	dest_addr -= CONFIG_SYS_STACK_SIZE;
 	dest_addr -= (bss_end - text_start);

 	/*
 	 * Round destination address down to 16-byte boundary to keep
 	 * IDT and GDT 16-byte aligned
 	 */
 	dest_addr &= ~15;

 	rel_offset = dest_addr - text_start;

 	gd->start_addr_sp = gd->ram_size;
 	gd->relocaddr = dest_addr;
 	gd->reloc_off = rel_offset;

 	return 0;
 }

 static int copy_uboot_to_ram(void)
 {
 	ulong *dst_addr = (ulong *)gd->relocaddr;
 	ulong *src_addr = (ulong *)&__text_start;
 	ulong *end_addr = (ulong *)&__data_end;

 	while (src_addr < end_addr)
 		*dst_addr++ = *src_addr++;

 	return 0;
 }

 static int clear_bss(void)
 {
 	void *bss_start = &__bss_start;
 	void *bss_end = &__bss_end;

 	ulong *dst_addr = (ulong *)(bss_start + gd->reloc_off);
 	ulong *end_addr = (ulong *)(bss_end + gd->reloc_off);

 	while (dst_addr < end_addr)
 		*dst_addr++ = 0x00000000;

 	return 0;
 }

 static int do_elf_reloc_fixups(void)
 {
 	Elf32_Rel *re_src = (Elf32_Rel *)(&__rel_dyn_start);
 	Elf32_Rel *re_end = (Elf32_Rel *)(&__rel_dyn_end);

 	Elf32_Addr *offset_ptr_rom;
 	Elf32_Addr *offset_ptr_ram;

 	/* The size of the region of u-boot that runs out of RAM. */
 	uintptr_t size = (uintptr_t)&__bss_end - (uintptr_t)&__text_start;

 	do {
 		/* Get the location from the relocation entry */
 		offset_ptr_rom = (Elf32_Addr *)re_src->r_offset;

 		/* Check that the location of the relocation is in .text */
 		if (offset_ptr_rom >= (Elf32_Addr *)CONFIG_SYS_TEXT_BASE) {

 			/* Switch to the in-RAM version */
 			offset_ptr_ram = (Elf32_Addr *)((ulong)offset_ptr_rom +
 							gd->reloc_off);

 			/* Check that the target points into .text */
 			if (*offset_ptr_ram >= CONFIG_SYS_TEXT_BASE &&
 					*offset_ptr_ram <
 					(CONFIG_SYS_TEXT_BASE + size)) {
 				*offset_ptr_ram += gd->reloc_off;
 			}
 		}
 	} while (re_src++ < re_end);

 	return 0;
 }

 /* Load U-Boot into RAM, initialize BSS, perform relocation adjustments */
 void board_init_f(ulong boot_flags)
 {
 	init_fnc_t **init_fnc_ptr;

 	gd->flags = boot_flags;

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

 	gd->flags |= GD_FLG_RELOC;

 	/* Enter the relocated U-Boot! */
 	relocate_code(gd->start_addr_sp, gd, gd->relocaddr);

 	/* NOTREACHED - relocate_code() does not return */
 	while (1)
 		;
 }

 void board_init_r(gd_t *id, ulong dest_addr)
 {
 #if defined(CONFIG_CMD_NET)
 	char *s;
 #endif
 #ifndef CONFIG_SYS_NO_FLASH
 	ulong size;
 #endif
 	static bd_t bd_data;
 	static gd_t gd_data;
 	init_fnc_t **init_fnc_ptr;

 	show_boot_progress(0x21);

 	/* Global data pointer is now writable */
 	gd = &gd_data;
 	memcpy(gd, id, sizeof(gd_t));

 	/* compiler optimization barrier needed for GCC >= 3.4 */
 	__asm__ __volatile__("" : : : "memory");

 	gd->bd = &bd_data;
 	memset(gd->bd, 0, sizeof(bd_t));
 	show_boot_progress(0x22);

 	gd->baudrate =  CONFIG_BAUDRATE;

 	mem_malloc_init((((ulong)dest_addr - CONFIG_SYS_MALLOC_LEN)+3)&~3,
 			CONFIG_SYS_MALLOC_LEN);

 	for (init_fnc_ptr = init_sequence_r; *init_fnc_ptr; ++init_fnc_ptr) {
 		if ((*init_fnc_ptr)() != 0)
 			hang();
 	}
 	show_boot_progress(0x23);

 #ifdef CONFIG_SERIAL_MULTI
 	serial_initialize();
 #endif

 #ifndef CONFIG_SYS_NO_FLASH
 	/* configure available FLASH banks */
 	size = flash_init();
 	display_flash_config(size);
 	show_boot_progress(0x24);
 #endif

 	show_boot_progress(0x25);

 	/* initialize environment */
 	env_relocate();
 	show_boot_progress(0x26);


 #ifdef CONFIG_CMD_NET
 	/* IP Address */
 	bd_data.bi_ip_addr = getenv_IPaddr("ipaddr");
 #endif

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

 	show_boot_progress(0x27);


 	stdio_init();

 	jumptable_init();

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

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

 #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
 	WATCHDOG_RESET();
 	puts("PCMCIA:");
 	pcmcia_init();
 #endif

 #if defined(CONFIG_CMD_KGDB)
 	WATCHDOG_RESET();
 	puts("KGDB:  ");
 	kgdb_init();
 #endif

 	/* enable exceptions */
 	enable_interrupts();
 	show_boot_progress(0x28);

 #ifdef CONFIG_STATUS_LED
 	status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
 #endif

 	udelay(20);

 	/* Initialize from environment */
 	load_addr = getenv_ulong("loadaddr", 16, load_addr);
 #if defined(CONFIG_CMD_NET)
 	s = getenv("bootfile");

 	if (s != NULL)
 		copy_filename(BootFile, s, sizeof(BootFile));
 #endif

 	WATCHDOG_RESET();

 #if defined(CONFIG_CMD_IDE)
 	WATCHDOG_RESET();
 	puts("IDE:   ");
 	ide_init();
 #endif

 #if defined(CONFIG_CMD_SCSI)
 	WATCHDOG_RESET();
 	puts("SCSI:  ");
 	scsi_init();
 #endif

 #if defined(CONFIG_CMD_DOC)
 	WATCHDOG_RESET();
 	puts("DOC:   ");
 	doc_init();
 #endif

 #ifdef CONFIG_BITBANGMII
 	bb_miiphy_init();
 #endif
 #if defined(CONFIG_CMD_NET)
 	WATCHDOG_RESET();
 	puts("Net:   ");
 	eth_initialize(gd->bd);
 #endif

 #if (defined(CONFIG_CMD_NET)) && (0)
 	WATCHDOG_RESET();
 # ifdef DEBUG
 	puts("Reset Ethernet PHY\n");
 # endif
 	reset_phy();
 #endif

 #ifdef CONFIG_LAST_STAGE_INIT
 	WATCHDOG_RESET();
 	/*
 	 * Some parts can be only initialized if all others (like
 	 * Interrupts) are up and running (i.e. the PC-style ISA
 	 * keyboard).
 	 */
 	last_stage_init();
 #endif


 #ifdef CONFIG_POST
 	post_run(NULL, POST_RAM | post_bootmode_get(0));
 #endif

 	show_boot_progress(0x29);

 	/* 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 (;;)
 		;
 }

 unsigned long do_go_exec(ulong (*entry)(int, char * const []),
 			 int argc, char * const argv[])
 {
 	unsigned long ret = 0;
 	char **argv_tmp;

 	/*
 	 * x86 does not use a dedicated register to pass the pointer to
 	 * the global_data, so it is instead passed as argv[-1]. By using
 	 * argv[-1], the called 'Application' can use the contents of
 	 * argv natively. However, to safely use argv[-1] a new copy of
 	 * argv is needed with the extra element
 	 */
 	argv_tmp = malloc(sizeof(char *) * (argc + 1));

 	if (argv_tmp) {
 		argv_tmp[0] = (char *)gd;

 		memcpy(&argv_tmp[1], argv, (size_t)(sizeof(char *) * argc));

 		ret = (entry) (argc, &argv_tmp[1]);
 		free(argv_tmp);
 	}

 	return ret;
 }

 void setup_pcat_compatibility(void)
 	__attribute__((weak, alias("__setup_pcat_compatibility")));

 void __setup_pcat_compatibility(void)
 {
 }
	/*
	* (C) Copyright 2008-2011
	* Graeme Russ, <graeme.russ@gmail.com>
	*
	* (C) Copyright 2002
	* Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
	*
	* (C) Copyright 2002
	* Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
	*
	* (C) Copyright 2002
	* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
	* Marius Groeger <mgroeger@sysgo.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 <watchdog.h>
	#include <command.h>
	#include <stdio_dev.h>
	#include <version.h>
	#include <malloc.h>
	#include <net.h>
	#include <ide.h>
	#include <serial.h>
	#include <asm/u-boot-x86.h>
	#include <elf.h>

	#ifdef CONFIG_BITBANGMII
	#include <miiphy.h>
	#endif

	/*
	* Pointer to initial global data area
	*
	* Here we initialize it.
	*/
	#undef XTRN_DECLARE_GLOBAL_DATA_PTR
	#define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
	DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);

	/************************************************************************
	* Init Utilities *
	************************************************************************
	* Some of this code should be moved into the core functions,
	* or dropped completely,
	* but let's get it working (again) first...
	*/
	static int init_baudrate(void)
	{
	gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
	return 0;
	}

	static int display_banner(void)
	{

	printf("\n\n%s\n\n", version_string);

	return 0;
	}

	static int display_dram_config(void)
	{
	int i;

	puts("DRAM Configuration:\n");

	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
	printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
	print_size(gd->bd->bi_dram[i].size, "\n");
	}

	return 0;
	}

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

	/*
	* Breath some life into the board...
	*
	* Initialize an SMC for serial comms, and carry out some hardware
	* tests.
	*
	* 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);

	static int calculate_relocation_address(void);
	static int copy_uboot_to_ram(void);
	static int clear_bss(void);
	static int do_elf_reloc_fixups(void);

	init_fnc_t *init_sequence_f[] = {
	cpu_init_f,
	board_early_init_f,
	env_init,
	init_baudrate,
	serial_init,
	console_init_f,
	dram_init_f,
	calculate_relocation_address,
	copy_uboot_to_ram,
	clear_bss,
	do_elf_reloc_fixups,

	NULL,
	};

	init_fnc_t *init_sequence_r[] = {
	cpu_init_r, /* basic cpu dependent setup */
	board_early_init_r, /* basic board dependent setup */
	dram_init, /* configure available RAM banks */
	interrupt_init, /* set up exceptions */
	timer_init,
	display_banner,
	display_dram_config,

	NULL,
	};

	gd_t *gd;

	static int calculate_relocation_address(void)
	{
	ulong text_start = (ulong)&__text_start;
	ulong bss_end = (ulong)&__bss_end;
	ulong dest_addr;
	ulong rel_offset;

	/* Calculate destination RAM Address and relocation offset */
	dest_addr = gd->ram_size;
	dest_addr -= CONFIG_SYS_STACK_SIZE;
	dest_addr -= (bss_end - text_start);

	/*
	* Round destination address down to 16-byte boundary to keep
	* IDT and GDT 16-byte aligned
	*/
	dest_addr &= ~15;

	rel_offset = dest_addr - text_start;

	gd->start_addr_sp = gd->ram_size;
	gd->relocaddr = dest_addr;
	gd->reloc_off = rel_offset;

	return 0;
	}

	static int copy_uboot_to_ram(void)
	{
	ulong dst_addr = (ulong )gd->relocaddr;
	ulong src_addr = (ulong )&__text_start;
	ulong end_addr = (ulong )&__data_end;

	while (src_addr < end_addr)
	dst_addr++ = src_addr++;

	return 0;
	}

	static int clear_bss(void)
	{
	void *bss_start = &__bss_start;
	void *bss_end = &__bss_end;

	ulong dst_addr = (ulong )(bss_start + gd->reloc_off);
	ulong end_addr = (ulong )(bss_end + gd->reloc_off);

	while (dst_addr < end_addr)
	*dst_addr++ = 0x00000000;

	return 0;
	}

	static int do_elf_reloc_fixups(void)
	{
	Elf32_Rel re_src = (Elf32_Rel )(&__rel_dyn_start);
	Elf32_Rel re_end = (Elf32_Rel )(&__rel_dyn_end);

	Elf32_Addr *offset_ptr_rom;
	Elf32_Addr *offset_ptr_ram;

	/* The size of the region of u-boot that runs out of RAM. */
	uintptr_t size = (uintptr_t)&__bss_end - (uintptr_t)&__text_start;

	do {
	/* Get the location from the relocation entry */
	offset_ptr_rom = (Elf32_Addr *)re_src->r_offset;

	/* Check that the location of the relocation is in .text */
	if (offset_ptr_rom >= (Elf32_Addr *)CONFIG_SYS_TEXT_BASE) {

	/* Switch to the in-RAM version */
	offset_ptr_ram = (Elf32_Addr *)((ulong)offset_ptr_rom +
	gd->reloc_off);

	/* Check that the target points into .text */
	if (*offset_ptr_ram >= CONFIG_SYS_TEXT_BASE &&
	*offset_ptr_ram <
	(CONFIG_SYS_TEXT_BASE + size)) {
	*offset_ptr_ram += gd->reloc_off;
	}
	}
	} while (re_src++ < re_end);

	return 0;
	}

	/* Load U-Boot into RAM, initialize BSS, perform relocation adjustments */
	void board_init_f(ulong boot_flags)
	{
	init_fnc_t **init_fnc_ptr;

	gd->flags = boot_flags;

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

	gd->flags \|= GD_FLG_RELOC;

	/* Enter the relocated U-Boot! */
	relocate_code(gd->start_addr_sp, gd, gd->relocaddr);

	/* NOTREACHED - relocate_code() does not return */
	while (1)
	;
	}

	void board_init_r(gd_t *id, ulong dest_addr)
	{
	#if defined(CONFIG_CMD_NET)
	char *s;
	#endif
	#ifndef CONFIG_SYS_NO_FLASH
	ulong size;
	#endif
	static bd_t bd_data;
	static gd_t gd_data;
	init_fnc_t **init_fnc_ptr;

	show_boot_progress(0x21);

	/* Global data pointer is now writable */
	gd = &gd_data;
	memcpy(gd, id, sizeof(gd_t));

	/* compiler optimization barrier needed for GCC >= 3.4 */
	__asm__ __volatile__("" : : : "memory");

	gd->bd = &bd_data;
	memset(gd->bd, 0, sizeof(bd_t));
	show_boot_progress(0x22);

	gd->baudrate = CONFIG_BAUDRATE;

	mem_malloc_init((((ulong)dest_addr - CONFIG_SYS_MALLOC_LEN)+3)&~3,
	CONFIG_SYS_MALLOC_LEN);

	for (init_fnc_ptr = init_sequence_r; *init_fnc_ptr; ++init_fnc_ptr) {
	if ((*init_fnc_ptr)() != 0)
	hang();
	}
	show_boot_progress(0x23);

	#ifdef CONFIG_SERIAL_MULTI
	serial_initialize();
	#endif

	#ifndef CONFIG_SYS_NO_FLASH
	/* configure available FLASH banks */
	size = flash_init();
	display_flash_config(size);
	show_boot_progress(0x24);
	#endif

	show_boot_progress(0x25);

	/* initialize environment */
	env_relocate();
	show_boot_progress(0x26);


	#ifdef CONFIG_CMD_NET
	/* IP Address */
	bd_data.bi_ip_addr = getenv_IPaddr("ipaddr");
	#endif

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

	show_boot_progress(0x27);


	stdio_init();

	jumptable_init();

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

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

	#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
	WATCHDOG_RESET();
	puts("PCMCIA:");
	pcmcia_init();
	#endif

	#if defined(CONFIG_CMD_KGDB)
	WATCHDOG_RESET();
	puts("KGDB: ");
	kgdb_init();
	#endif

	/* enable exceptions */
	enable_interrupts();
	show_boot_progress(0x28);

	#ifdef CONFIG_STATUS_LED
	status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
	#endif

	udelay(20);

	/* Initialize from environment */
	load_addr = getenv_ulong("loadaddr", 16, load_addr);
	#if defined(CONFIG_CMD_NET)
	s = getenv("bootfile");

	if (s != NULL)
	copy_filename(BootFile, s, sizeof(BootFile));
	#endif

	WATCHDOG_RESET();

	#if defined(CONFIG_CMD_IDE)
	WATCHDOG_RESET();
	puts("IDE: ");
	ide_init();
	#endif

	#if defined(CONFIG_CMD_SCSI)
	WATCHDOG_RESET();
	puts("SCSI: ");
	scsi_init();
	#endif

	#if defined(CONFIG_CMD_DOC)
	WATCHDOG_RESET();
	puts("DOC: ");
	doc_init();
	#endif

	#ifdef CONFIG_BITBANGMII
	bb_miiphy_init();
	#endif
	#if defined(CONFIG_CMD_NET)
	WATCHDOG_RESET();
	puts("Net: ");
	eth_initialize(gd->bd);
	#endif

	#if (defined(CONFIG_CMD_NET)) && (0)
	WATCHDOG_RESET();
	# ifdef DEBUG
	puts("Reset Ethernet PHY\n");
	# endif
	reset_phy();
	#endif

	#ifdef CONFIG_LAST_STAGE_INIT
	WATCHDOG_RESET();
	/*
	* Some parts can be only initialized if all others (like
	* Interrupts) are up and running (i.e. the PC-style ISA
	* keyboard).
	*/
	last_stage_init();
	#endif


	#ifdef CONFIG_POST
	post_run(NULL, POST_RAM \| post_bootmode_get(0));
	#endif

	show_boot_progress(0x29);

	/* 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 (;;)
	;
	}

	unsigned long do_go_exec(ulong (entry)(int, char const []),
	int argc, char * const argv[])
	{
	unsigned long ret = 0;
	char **argv_tmp;

	/*
	* x86 does not use a dedicated register to pass the pointer to
	* the global_data, so it is instead passed as argv[-1]. By using
	* argv[-1], the called 'Application' can use the contents of
	* argv natively. However, to safely use argv[-1] a new copy of
	* argv is needed with the extra element
	*/
	argv_tmp = malloc(sizeof(char ) (argc + 1));

	if (argv_tmp) {
	argv_tmp[0] = (char *)gd;

	memcpy(&argv_tmp[1], argv, (size_t)(sizeof(char ) argc));

	ret = (entry) (argc, &argv_tmp[1]);
	free(argv_tmp);
	}

	return ret;
	}

	void setup_pcat_compatibility(void)
	__attribute__((weak, alias("__setup_pcat_compatibility")));

	void __setup_pcat_compatibility(void)
	{
	}