x86, efi: Set runtime_version to the EFI spec revision
[linux/fpc-iii.git] / arch / arm / mach-s3c24xx / pm-s3c2412.c
blobc60f67a75afff8ba291d712091a744696e64893c
1 /* linux/arch/arm/mach-s3c2412/pm.c
3 * Copyright (c) 2006 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
6 * http://armlinux.simtec.co.uk/.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/kernel.h>
14 #include <linux/types.h>
15 #include <linux/interrupt.h>
16 #include <linux/list.h>
17 #include <linux/timer.h>
18 #include <linux/init.h>
19 #include <linux/device.h>
20 #include <linux/syscore_ops.h>
21 #include <linux/platform_device.h>
22 #include <linux/io.h>
24 #include <mach/hardware.h>
25 #include <asm/cacheflush.h>
26 #include <asm/irq.h>
28 #include <mach/regs-power.h>
29 #include <mach/regs-gpio.h>
30 #include <mach/regs-dsc.h>
32 #include <plat/cpu.h>
33 #include <plat/pm.h>
35 #include <plat/s3c2412.h>
37 extern void s3c2412_sleep_enter(void);
39 static int s3c2412_cpu_suspend(unsigned long arg)
41 unsigned long tmp;
43 /* set our standby method to sleep */
45 tmp = __raw_readl(S3C2412_PWRCFG);
46 tmp |= S3C2412_PWRCFG_STANDBYWFI_SLEEP;
47 __raw_writel(tmp, S3C2412_PWRCFG);
49 s3c2412_sleep_enter();
51 panic("sleep resumed to originator?");
54 static void s3c2412_pm_prepare(void)
58 static int s3c2412_pm_add(struct device *dev, struct subsys_interface *sif)
60 pm_cpu_prep = s3c2412_pm_prepare;
61 pm_cpu_sleep = s3c2412_cpu_suspend;
63 return 0;
66 static struct sleep_save s3c2412_sleep[] = {
67 SAVE_ITEM(S3C2412_DSC0),
68 SAVE_ITEM(S3C2412_DSC1),
69 SAVE_ITEM(S3C2413_GPJDAT),
70 SAVE_ITEM(S3C2413_GPJCON),
71 SAVE_ITEM(S3C2413_GPJUP),
73 /* save the PWRCFG to get back to original sleep method */
75 SAVE_ITEM(S3C2412_PWRCFG),
77 /* save the sleep configuration anyway, just in case these
78 * get damaged during wakeup */
80 SAVE_ITEM(S3C2412_GPBSLPCON),
81 SAVE_ITEM(S3C2412_GPCSLPCON),
82 SAVE_ITEM(S3C2412_GPDSLPCON),
83 SAVE_ITEM(S3C2412_GPFSLPCON),
84 SAVE_ITEM(S3C2412_GPGSLPCON),
85 SAVE_ITEM(S3C2412_GPHSLPCON),
86 SAVE_ITEM(S3C2413_GPJSLPCON),
89 static struct subsys_interface s3c2412_pm_interface = {
90 .name = "s3c2412_pm",
91 .subsys = &s3c2412_subsys,
92 .add_dev = s3c2412_pm_add,
95 static __init int s3c2412_pm_init(void)
97 return subsys_interface_register(&s3c2412_pm_interface);
100 arch_initcall(s3c2412_pm_init);
102 static int s3c2412_pm_suspend(void)
104 s3c_pm_do_save(s3c2412_sleep, ARRAY_SIZE(s3c2412_sleep));
105 return 0;
108 static void s3c2412_pm_resume(void)
110 unsigned long tmp;
112 tmp = __raw_readl(S3C2412_PWRCFG);
113 tmp &= ~S3C2412_PWRCFG_STANDBYWFI_MASK;
114 tmp |= S3C2412_PWRCFG_STANDBYWFI_IDLE;
115 __raw_writel(tmp, S3C2412_PWRCFG);
117 s3c_pm_do_restore(s3c2412_sleep, ARRAY_SIZE(s3c2412_sleep));
120 struct syscore_ops s3c2412_pm_syscore_ops = {
121 .suspend = s3c2412_pm_suspend,
122 .resume = s3c2412_pm_resume,