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/*
* Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
* JZ4740 SoC power management support
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/init.h>
#include <linux/pm.h>
#include <linux/delay.h>
#include <linux/suspend.h>
#include <asm/mach-jz4740/regs.h>
#include <asm/mach-jz4740/clock.h>
#include "clock.h"
extern void jz4740_intc_suspend(void);
extern void jz4740_intc_resume(void);
extern void jz_gpio_suspend(void);
extern void jz_gpio_resume(void);
static int jz_pm_enter(suspend_state_t state)
{
jz_gpio_suspend();
jz4740_intc_suspend();
jz4740_clock_suspend();
jz4740_clock_set_wait_mode(JZ4740_WAIT_MODE_SLEEP);
__asm__(".set\tmips3\n\t"
"wait\n\t"
".set\tmips0");
jz4740_clock_set_wait_mode(JZ4740_WAIT_MODE_IDLE);
jz4740_clock_resume();
jz4740_intc_resume();
jz_gpio_resume();
return 0;
}
static struct platform_suspend_ops jz_pm_ops = {
.valid = suspend_valid_only_mem,
.enter = jz_pm_enter,
};
/*
* Initialize power interface
*/
int __init jz_pm_init(void)
{
suspend_set_ops(&jz_pm_ops);
return 0;
}
late_initcall(jz_pm_init);
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