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/*
* (C) Copyright 2002-2006
* 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 <init.h>
#include <command.h>
#include <malloc.h>
#include <linux/utsrelease.h>
#include <mem_malloc.h>
#include <debug_ll.h>
#include <fs.h>
#include <linux/stat.h>
#include <reloc.h>
#ifndef CONFIG_IDENT_STRING
#define CONFIG_IDENT_STRING ""
#endif
extern initcall_t __u_boot_initcalls_start[], __u_boot_early_initcalls_end[], __u_boot_initcalls_end[];
const char version_string[] =
"U-Boot " UTS_RELEASE " (" __DATE__ " - " __TIME__ ")"CONFIG_IDENT_STRING;
static int display_banner (void)
{
printf (RELOC("\n\n%s\n\n"), RELOC_VAR(version_string));
debug (RELOC("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n"),
RELOC_VAR(_u_boot_start), RELOC_VAR(_bss_start), RELOC_VAR(_bss_end));
printf(RELOC("Board: " CONFIG_BOARDINFO "\n"));
return 0;
}
#ifdef CONFIG_HAS_EARLY_INIT
#define EARLY_INITDATA (CFG_INIT_RAM_ADDR + CFG_INIT_RAM_SIZE \
- CONFIG_EARLY_INITDATA_SIZE)
void *init_data_ptr = (void *)EARLY_INITDATA;
void early_init (void)
{
/* copy the early initdata segment to early init RAM */
memcpy((void *)EARLY_INITDATA, RELOC(&__early_init_data_begin),
(ulong)&__early_init_data_end - (ulong)&__early_init_data_begin);
early_console_start(RELOC("psc3"), 115200);
display_banner();
}
#endif /* CONFIG_HAS_EARLY_INIT */
void start_uboot (void)
{
initcall_t *initcall;
int result;
struct stat s;
#ifdef CONFIG_HAS_EARLY_INIT
/* We are running from RAM now, copy early initdata from
* early RAM to RAM
*/
memcpy(&__early_init_data_begin, init_data_ptr,
(ulong)&__early_init_data_end - (ulong)&__early_init_data_begin);
init_data_ptr = &__early_init_data_begin;
#endif /* CONFIG_HAS_EARLY_INIT */
for (initcall = __u_boot_initcalls_start;
initcall < __u_boot_initcalls_end; initcall++) {
PUTHEX_LL(*initcall);
PUTC_LL('\n');
result = (*initcall)();
if (result)
hang();
}
#ifndef CONFIG_HAS_EARLY_INIT
display_banner();
#endif
mount("none", "ramfs", "/");
mkdir("/dev");
mkdir("/env");
mount("none", "devfs", "/dev");
run_command("loadenv", 0);
if (!stat("/env/init", &s)) {
printf("running /env/init\n");
run_command("exec /env/init", 0);
}
/* 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 (;;);
}
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