blob: 67780c4b65730597e6d66d08e238b44669456823 [file] [log] [blame]
* Copyright (C) 2010, Lars-Peter Clausen <>
* 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.
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/pm.h>
#include <asm/reboot.h>
#include <asm/mach-jz4740/base.h>
#include <asm/mach-jz4740/timer.h>
#include "reset.h"
#include "clock.h"
static void jz4740_halt(void)
while (1) {
__asm__(".set push;\n"
".set mips3;\n"
".set pop;\n"
#define JZ_REG_WDT_DATA 0x00
#define JZ_REG_WDT_COUNTER 0x08
#define JZ_REG_WDT_CTRL 0x0c
static void jz4740_restart(char *command)
void __iomem *wdt_base = ioremap(JZ4740_WDT_BASE_ADDR, 0x0f);
writeb(0, wdt_base + JZ_REG_WDT_COUNTER_ENABLE);
writew(0, wdt_base + JZ_REG_WDT_COUNTER);
writew(0, wdt_base + JZ_REG_WDT_DATA);
writew(BIT(2), wdt_base + JZ_REG_WDT_CTRL);
writeb(1, wdt_base + JZ_REG_WDT_COUNTER_ENABLE);
void jz4740_reset_init(void)
_machine_restart = jz4740_restart;
_machine_halt = jz4740_halt;