Kelvin Cheung | ca585cf | 2012-07-25 16:17:24 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com> |
| 3 | * |
Ralf Baechle | 7034228 | 2013-01-22 12:59:30 +0100 | [diff] [blame] | 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 |
Kelvin Cheung | ca585cf | 2012-07-25 16:17:24 +0200 | [diff] [blame] | 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> |
Ralf Baechle | bdc92d74 | 2013-05-21 16:59:19 +0200 | [diff] [blame] | 12 | #include <asm/idle.h> |
Kelvin Cheung | ca585cf | 2012-07-25 16:17:24 +0200 | [diff] [blame] | 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); |