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 void __init highbank_pm_init(void) 51 { 52 suspend_set_ops(&highbank_pm_ops); 53 } 54