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openwrt-xburst/target/linux/xburst/files-2.6.27/arch/mips/jz4750/reset.c
Mirko Vogt dc3d3f1c49 yet another patchset - 2.6.27
it's basically also provided by ingenic and nativly based on 2.6.27,
adjusted to fit into the OpenWrt-environment
2009-10-28 03:13:11 +08:00

47 lines
1.0 KiB
C

/*
* linux/arch/mips/jz4750/reset.c
*
* JZ4750 reset routines.
*
* Copyright (c) 2006-2007 Ingenic Semiconductor Inc.
* Author: <yliu@ingenic.cn>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/sched.h>
#include <linux/mm.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm/reboot.h>
#include <asm/system.h>
#include <asm/jzsoc.h>
void jz_restart(char *command)
{
printk("Restarting after 4 ms\n");
REG_WDT_TCSR = WDT_TCSR_PRESCALE4 | WDT_TCSR_EXT_EN;
REG_WDT_TCNT = 0;
REG_WDT_TDR = JZ_EXTAL/1000; /* reset after 4ms */
REG_TCU_TSCR = TCU_TSCR_WDTSC; /* enable wdt clock */
REG_WDT_TCER = WDT_TCER_TCEN; /* wdt start */
while (1);
}
void jz_halt(void)
{
printk(KERN_NOTICE "\n** You can safely turn off the power\n");
while (1)
__asm__(".set\tmips3\n\t"
"wait\n\t"
".set\tmips0");
}
void jz_power_off(void)
{
jz_halt();
}