arch/mips/powertv/reset.c

/*
 * Carsten Langgaard, carstenl@mips.com
 * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
 * Portions copyright (C) 2009 Cisco Systems, Inc.
 *
 *  This program is free software; you can distribute it and/or modify it
 *  under the terms of the GNU General Public License (Version 2) as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope 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 <linux/pm.h>

#include <linux/io.h>
#include <asm/reboot.h>			/* Not included by linux/reboot.h */

#ifdef CONFIG_BOOTLOADER_DRIVER
#include <asm/mach-powertv/kbldr.h>
#endif

#include <asm/mach-powertv/asic_regs.h>
#include "reset.h"

static void mips_machine_restart(char *command);
static void mips_machine_halt(void);

static void mips_machine_restart(char *command)
{
#ifdef CONFIG_BOOTLOADER_DRIVER
	/*
	 * Call the bootloader's reset function to ensure
	 * that persistent data is flushed before hard reset
	 */
	kbldr_SetCauseAndReset();
#else
	writel(0x1, asic_reg_addr(watchdog));
#endif
}

static void mips_machine_halt(void)
{
#ifdef CONFIG_BOOTLOADER_DRIVER
	/*
	 * Call the bootloader's reset function to ensure
	 * that persistent data is flushed before hard reset
	 */
	kbldr_SetCauseAndReset();
#else
	writel(0x1, asic_reg_addr(watchdog));
#endif
}

void mips_reboot_setup(void)
{
	_machine_restart = mips_machine_restart;
	_machine_halt = mips_machine_halt;
	pm_power_off = mips_machine_halt;
}