5113f6f70
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kernel add
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/*
* Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
*
* 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.
*/
#include <linux/io.h>
#include <linux/pm.h>
#include <asm/idle.h>
#include <asm/reboot.h>
#include <loongson1.h>
static void __iomem *wdt_base;
static void ls1x_halt(void)
{
while (1) {
if (cpu_wait)
cpu_wait();
}
}
static void ls1x_restart(char *command)
{
__raw_writel(0x1, wdt_base + WDT_EN);
__raw_writel(0x1, wdt_base + WDT_TIMER);
__raw_writel(0x1, wdt_base + WDT_SET);
ls1x_halt();
}
static void ls1x_power_off(void)
{
ls1x_halt();
}
static int __init ls1x_reboot_setup(void)
{
wdt_base = ioremap_nocache(LS1X_WDT_BASE, 0x0f);
if (!wdt_base)
panic("Failed to remap watchdog registers");
_machine_restart = ls1x_restart;
_machine_halt = ls1x_halt;
pm_power_off = ls1x_power_off;
return 0;
}
arch_initcall(ls1x_reboot_setup);
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