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Merge tag 'upstream-3.13-rc1' of git://git.infradead.org/linux-ubi
[karo-tx-linux.git] / arch / mips / loongson1 / common / reset.c
1 /*
2  * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
3  *
4  * This program is free software; you can redistribute  it and/or modify it
5  * under  the terms of  the GNU General  Public License as published by the
6  * Free Software Foundation;  either version 2 of the  License, or (at your
7  * option) any later version.
8  */
9
10 #include <linux/io.h>
11 #include <linux/pm.h>
12 #include <asm/idle.h>
13 #include <asm/reboot.h>
14
15 #include <loongson1.h>
16
17 static void ls1x_restart(char *command)
18 {
19         __raw_writel(0x1, LS1X_WDT_EN);
20         __raw_writel(0x5000000, LS1X_WDT_TIMER);
21         __raw_writel(0x1, LS1X_WDT_SET);
22 }
23
24 static void ls1x_halt(void)
25 {
26         while (1) {
27                 if (cpu_wait)
28                         cpu_wait();
29         }
30 }
31
32 static void ls1x_power_off(void)
33 {
34         ls1x_halt();
35 }
36
37 static int __init ls1x_reboot_setup(void)
38 {
39         _machine_restart = ls1x_restart;
40         _machine_halt = ls1x_halt;
41         pm_power_off = ls1x_power_off;
42
43         return 0;
44 }
45
46 arch_initcall(ls1x_reboot_setup);