42 lines
963 B
C
42 lines
963 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* ip30-power.c: Software powerdown and reset handling for IP30 architecture.
|
|
*
|
|
* Copyright (C) 2004-2007 Stanislaw Skowronek <skylark@unaligned.org>
|
|
* 2014 Joshua Kinard <kumba@gentoo.org>
|
|
* 2009 Johannes Dickgreber <tanzy@gmx.de>
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/notifier.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/rtc/ds1685.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/pm.h>
|
|
|
|
#include <asm/reboot.h>
|
|
#include <asm/sgi/heart.h>
|
|
|
|
static void __noreturn ip30_machine_restart(char *cmd)
|
|
{
|
|
/*
|
|
* Execute HEART cold reset
|
|
* Yes, it's cold-HEARTed!
|
|
*/
|
|
heart_write((heart_read(&heart_regs->mode) | HM_COLD_RST),
|
|
&heart_regs->mode);
|
|
unreachable();
|
|
}
|
|
|
|
static int __init ip30_reboot_setup(void)
|
|
{
|
|
_machine_restart = ip30_machine_restart;
|
|
|
|
return 0;
|
|
}
|
|
|
|
subsys_initcall(ip30_reboot_setup);
|