0033a2f0d0
Remove the S3C2410 specific items out of the core PM code. Add sysdev driver for all the S3C24XX series that used the S3C2410 PM code. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
111 lines
2.7 KiB
C
111 lines
2.7 KiB
C
/* linux/arch/arm/mach-s3c2410/s3c2410-pm.c
|
|
*
|
|
* Copyright (c) 2006 Simtec Electronics
|
|
* Ben Dooks <ben@simtec.co.uk>
|
|
*
|
|
* S3C2410 (and compatible) Power Manager (Suspend-To-RAM) 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.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/suspend.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/time.h>
|
|
#include <linux/sysdev.h>
|
|
|
|
#include <asm/hardware.h>
|
|
#include <asm/io.h>
|
|
|
|
#include <asm/arch/regs-gpio.h>
|
|
|
|
#include "cpu.h"
|
|
#include "pm.h"
|
|
|
|
#ifdef CONFIG_S3C2410_PM_DEBUG
|
|
extern void pm_dbg(const char *fmt, ...);
|
|
#define DBG(fmt...) pm_dbg(fmt)
|
|
#else
|
|
#define DBG(fmt...) printk(KERN_DEBUG fmt)
|
|
#endif
|
|
|
|
static void s3c2410_pm_prepare(void)
|
|
{
|
|
/* ensure at least GSTATUS3 has the resume address */
|
|
|
|
__raw_writel(virt_to_phys(s3c2410_cpu_resume), S3C2410_GSTATUS3);
|
|
|
|
DBG("GSTATUS3 0x%08x\n", __raw_readl(S3C2410_GSTATUS3));
|
|
DBG("GSTATUS4 0x%08x\n", __raw_readl(S3C2410_GSTATUS4));
|
|
}
|
|
|
|
int s3c2410_pm_resume(struct sys_device *dev)
|
|
{
|
|
unsigned long tmp;
|
|
|
|
/* unset the return-from-sleep flag, to ensure reset */
|
|
|
|
tmp = __raw_readl(S3C2410_GSTATUS2);
|
|
tmp &= S3C2410_GSTATUS2_OFFRESET;
|
|
__raw_writel(tmp, S3C2410_GSTATUS2);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int s3c2410_pm_add(struct sys_device *dev)
|
|
{
|
|
pm_cpu_prep = s3c2410_pm_prepare;
|
|
pm_cpu_sleep = s3c2410_cpu_suspend;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct sysdev_driver s3c2410_pm_driver = {
|
|
.add = s3c2410_pm_add,
|
|
.resume = s3c2410_pm_resume,
|
|
};
|
|
|
|
/* register ourselves */
|
|
|
|
static int __init s3c2410_pm_drvinit(void)
|
|
{
|
|
return sysdev_driver_register(&s3c2410_sysclass, &s3c2410_pm_driver);
|
|
}
|
|
|
|
arch_initcall(s3c2410_pm_drvinit);
|
|
|
|
static struct sysdev_driver s3c2440_pm_driver = {
|
|
.add = s3c2410_pm_add,
|
|
.resume = s3c2410_pm_resume,
|
|
};
|
|
|
|
static int __init s3c2440_pm_drvinit(void)
|
|
{
|
|
return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_pm_driver);
|
|
}
|
|
|
|
arch_initcall(s3c2440_pm_drvinit);
|
|
|
|
static struct sysdev_driver s3c2442_pm_driver = {
|
|
.add = s3c2410_pm_add,
|
|
.resume = s3c2410_pm_resume,
|
|
};
|
|
|
|
static int __init s3c2442_pm_drvinit(void)
|
|
{
|
|
return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_pm_driver);
|
|
}
|
|
|
|
arch_initcall(s3c2442_pm_drvinit);
|