| Rob Herring | 8b61f37 | 2011-05-15 12:44:17 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 Calxeda, Inc. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms and conditions of the GNU General Public License, |
| 6 | * version 2, as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 11 | * more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along with |
| 14 | * this program. If not, see <http://www.gnu.org/licenses/>. |
| 15 | */ |
| 16 | |
| 17 | #include <linux/init.h> |
| 18 | #include <linux/io.h> |
| 19 | #include <linux/suspend.h> |
| 20 | |
| 21 | #include <asm/proc-fns.h> |
| 22 | #include <asm/smp_scu.h> |
| 23 | #include <asm/suspend.h> |
| 24 | |
| 25 | #include "core.h" |
| 26 | #include "sysregs.h" |
| 27 | |
| 28 | static int highbank_suspend_finish(unsigned long val) |
| 29 | { |
| 30 | cpu_do_idle(); |
| 31 | return 0; |
| 32 | } |
| 33 | |
| 34 | static int highbank_pm_enter(suspend_state_t state) |
| 35 | { |
| 36 | hignbank_set_pwr_suspend(); |
| 37 | highbank_set_cpu_jump(0, cpu_resume); |
| 38 | |
| 39 | scu_power_mode(scu_base_addr, SCU_PM_POWEROFF); |
| 40 | cpu_suspend(0, highbank_suspend_finish); |
| 41 | |
| 42 | return 0; |
| 43 | } |
| 44 | |
| 45 | static const struct platform_suspend_ops highbank_pm_ops = { |
| 46 | .enter = highbank_pm_enter, |
| 47 | .valid = suspend_valid_only_mem, |
| 48 | }; |
| 49 | |
| 50 | static int __init highbank_pm_init(void) |
| 51 | { |
| 52 | suspend_set_ops(&highbank_pm_ops); |
| 53 | return 0; |
| 54 | } |
| 55 | module_init(highbank_pm_init); |