diff options
author | Kukjin Kim <kgene.kim@samsung.com> | 2012-02-06 02:02:01 +0100 |
---|---|---|
committer | Kukjin Kim <kgene.kim@samsung.com> | 2012-03-03 00:29:56 +0100 |
commit | 85e2a26f3d17b349a921b93e02b778fa8a09027b (patch) | |
tree | 4ea4e02452a824e19305ad71dbe932d7c37b6797 /arch/arm/mach-s3c24xx/pm-s3c2412.c | |
parent | ARM: S3C2410: move mach-s3c2410/* into mach-s3c24xx/ (diff) | |
download | linux-85e2a26f3d17b349a921b93e02b778fa8a09027b.tar.xz linux-85e2a26f3d17b349a921b93e02b778fa8a09027b.zip |
ARM: S3C2412: move mach-s3c2412/* into mach-s3c24xx/
This patch moves S3C2412 stuff into mach-s3c24xx/ directory
so that we can merge the s3c24 series' directories to the
just one mach-s3c24xx/ directory.
And this patch is including following.
- re-ordered alphabetically by option text at Kconfig and Makefile
Cc: Ben Dooks <ben-linux@fluff.org>
[heiko@sntech.de: move 'config S3C2412_PM_SLEEP' to use it for S3C2416]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-s3c24xx/pm-s3c2412.c')
-rw-r--r-- | arch/arm/mach-s3c24xx/pm-s3c2412.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c24xx/pm-s3c2412.c b/arch/arm/mach-s3c24xx/pm-s3c2412.c new file mode 100644 index 000000000000..d1adfa65f66d --- /dev/null +++ b/arch/arm/mach-s3c24xx/pm-s3c2412.c @@ -0,0 +1,124 @@ +/* linux/arch/arm/mach-s3c2412/pm.c + * + * Copyright (c) 2006 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * http://armlinux.simtec.co.uk/. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/timer.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/syscore_ops.h> +#include <linux/platform_device.h> +#include <linux/io.h> + +#include <mach/hardware.h> +#include <asm/cacheflush.h> +#include <asm/irq.h> + +#include <mach/regs-power.h> +#include <mach/regs-gpioj.h> +#include <mach/regs-gpio.h> +#include <mach/regs-dsc.h> + +#include <plat/cpu.h> +#include <plat/pm.h> + +#include <plat/s3c2412.h> + +extern void s3c2412_sleep_enter(void); + +static int s3c2412_cpu_suspend(unsigned long arg) +{ + unsigned long tmp; + + /* set our standby method to sleep */ + + tmp = __raw_readl(S3C2412_PWRCFG); + tmp |= S3C2412_PWRCFG_STANDBYWFI_SLEEP; + __raw_writel(tmp, S3C2412_PWRCFG); + + s3c2412_sleep_enter(); + + panic("sleep resumed to originator?"); +} + +static void s3c2412_pm_prepare(void) +{ +} + +static int s3c2412_pm_add(struct device *dev) +{ + pm_cpu_prep = s3c2412_pm_prepare; + pm_cpu_sleep = s3c2412_cpu_suspend; + + return 0; +} + +static struct sleep_save s3c2412_sleep[] = { + SAVE_ITEM(S3C2412_DSC0), + SAVE_ITEM(S3C2412_DSC1), + SAVE_ITEM(S3C2413_GPJDAT), + SAVE_ITEM(S3C2413_GPJCON), + SAVE_ITEM(S3C2413_GPJUP), + + /* save the PWRCFG to get back to original sleep method */ + + SAVE_ITEM(S3C2412_PWRCFG), + + /* save the sleep configuration anyway, just in case these + * get damaged during wakeup */ + + SAVE_ITEM(S3C2412_GPBSLPCON), + SAVE_ITEM(S3C2412_GPCSLPCON), + SAVE_ITEM(S3C2412_GPDSLPCON), + SAVE_ITEM(S3C2412_GPFSLPCON), + SAVE_ITEM(S3C2412_GPGSLPCON), + SAVE_ITEM(S3C2412_GPHSLPCON), + SAVE_ITEM(S3C2413_GPJSLPCON), +}; + +static struct subsys_interface s3c2412_pm_interface = { + .name = "s3c2412_pm", + .subsys = &s3c2412_subsys, + .add_dev = s3c2412_pm_add, +}; + +static __init int s3c2412_pm_init(void) +{ + return subsys_interface_register(&s3c2412_pm_interface); +} + +arch_initcall(s3c2412_pm_init); + +static int s3c2412_pm_suspend(void) +{ + s3c_pm_do_save(s3c2412_sleep, ARRAY_SIZE(s3c2412_sleep)); + return 0; +} + +static void s3c2412_pm_resume(void) +{ + unsigned long tmp; + + tmp = __raw_readl(S3C2412_PWRCFG); + tmp &= ~S3C2412_PWRCFG_STANDBYWFI_MASK; + tmp |= S3C2412_PWRCFG_STANDBYWFI_IDLE; + __raw_writel(tmp, S3C2412_PWRCFG); + + s3c_pm_do_restore(s3c2412_sleep, ARRAY_SIZE(s3c2412_sleep)); +} + +struct syscore_ops s3c2412_pm_syscore_ops = { + .suspend = s3c2412_pm_suspend, + .resume = s3c2412_pm_resume, +}; |