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/*
* (C) Copyright 2002
* Lineo, Inc. <www.lineo.com>
* Bernhard Kuhn <bkuhn@lineo.com>
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Alex Zuepke <azu@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 <asm/arch/hardware.h>
void board_reset(void) __attribute__((__weak__));
/*
* Reset the cpu by setting up the watchdog timer and let him time out
* or toggle a GPIO pin on the AT91RM9200DK board
*/
void reset_cpu (ulong ignored)
{
#if defined(CONFIG_AT91RM9200_USART)
/*shutdown the console to avoid strange chars during reset */
serial_exit();
#endif
if (board_reset)
board_reset();
/* this is the way Linux does it */
/* FIXME:
* These defines should be moved into
* include/asm-arm/arch-at91rm9200/AT91RM9200.h
* as soon as the whitespace fix gets applied.
*/
#define AT91C_ST_RSTEN (0x1 << 16)
#define AT91C_ST_EXTEN (0x1 << 17)
#define AT91C_ST_WDRST (0x1 << 0)
#define ST_WDMR *((unsigned long *)0xfffffd08) /* watchdog mode register */
#define ST_CR *((unsigned long *)0xfffffd00) /* system clock control register */
ST_WDMR = AT91C_ST_RSTEN | AT91C_ST_EXTEN | 1 ;
ST_CR = AT91C_ST_WDRST;
while (1);
/* Never reached */
}
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