[mirror_ubuntu-zesty-kernel.git] / arch / arm / mach-s3c64xx / pm.c

/* linux/arch/arm/plat-s3c64xx/pm.c
 *
 * Copyright 2008 Openmoko, Inc.
 * Copyright 2008 Simtec Electronics
 *	Ben Dooks <ben@simtec.co.uk>
 *	http://armlinux.simtec.co.uk/
 *
 * S3C64XX CPU PM support.
 *
 * 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/init.h>
#include <linux/suspend.h>
#include <linux/serial_core.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/pm_domain.h>

#include <mach/map.h>
#include <mach/irqs.h>

#include <plat/devs.h>
#include <plat/pm.h>
#include <plat/wakeup-mask.h>

#include <mach/regs-gpio.h>
#include <mach/regs-clock.h>

#include "regs-gpio-memport.h"
#include "regs-modem.h"
#include "regs-sys.h"
#include "regs-syscon-power.h"

struct s3c64xx_pm_domain {
	char *const name;
	u32 ena;
	u32 pwr_stat;
	struct generic_pm_domain pd;
};

static int s3c64xx_pd_off(struct generic_pm_domain *domain)
{
	struct s3c64xx_pm_domain *pd;
	u32 val;

	pd = container_of(domain, struct s3c64xx_pm_domain, pd);

	val = __raw_readl(S3C64XX_NORMAL_CFG);
	val &= ~(pd->ena);
	__raw_writel(val, S3C64XX_NORMAL_CFG);

	return 0;
}

static int s3c64xx_pd_on(struct generic_pm_domain *domain)
{
	struct s3c64xx_pm_domain *pd;
	u32 val;
	long retry = 1000000L;

	pd = container_of(domain, struct s3c64xx_pm_domain, pd);

	val = __raw_readl(S3C64XX_NORMAL_CFG);
	val |= pd->ena;
	__raw_writel(val, S3C64XX_NORMAL_CFG);

	/* Not all domains provide power status readback */
	if (pd->pwr_stat) {
		do {
			cpu_relax();
			if (__raw_readl(S3C64XX_BLK_PWR_STAT) & pd->pwr_stat)
				break;
		} while (retry--);

		if (!retry) {
			pr_err("Failed to start domain %s\n", pd->name);
			return -EBUSY;
		}
	}

	return 0;
}

static struct s3c64xx_pm_domain s3c64xx_pm_irom = {
	.name = "IROM",
	.ena = S3C64XX_NORMALCFG_IROM_ON,
	.pd = {
		.power_off = s3c64xx_pd_off,
		.power_on = s3c64xx_pd_on,
	},
};

static struct s3c64xx_pm_domain s3c64xx_pm_etm = {
	.name = "ETM",
	.ena = S3C64XX_NORMALCFG_DOMAIN_ETM_ON,
	.pwr_stat = S3C64XX_BLKPWRSTAT_ETM,
	.pd = {
		.power_off = s3c64xx_pd_off,
		.power_on = s3c64xx_pd_on,
	},
};

static struct s3c64xx_pm_domain s3c64xx_pm_s = {
	.name = "S",
	.ena = S3C64XX_NORMALCFG_DOMAIN_S_ON,
	.pwr_stat = S3C64XX_BLKPWRSTAT_S,
	.pd = {
		.power_off = s3c64xx_pd_off,
		.power_on = s3c64xx_pd_on,
	},
};

static struct s3c64xx_pm_domain s3c64xx_pm_f = {
	.name = "F",
	.ena = S3C64XX_NORMALCFG_DOMAIN_F_ON,
	.pwr_stat = S3C64XX_BLKPWRSTAT_F,
	.pd = {
		.power_off = s3c64xx_pd_off,
		.power_on = s3c64xx_pd_on,
	},
};

static struct s3c64xx_pm_domain s3c64xx_pm_p = {
	.name = "P",
	.ena = S3C64XX_NORMALCFG_DOMAIN_P_ON,
	.pwr_stat = S3C64XX_BLKPWRSTAT_P,
	.pd = {
		.power_off = s3c64xx_pd_off,
		.power_on = s3c64xx_pd_on,
	},
};

static struct s3c64xx_pm_domain s3c64xx_pm_i = {
	.name = "I",
	.ena = S3C64XX_NORMALCFG_DOMAIN_I_ON,
	.pwr_stat = S3C64XX_BLKPWRSTAT_I,
	.pd = {
		.power_off = s3c64xx_pd_off,
		.power_on = s3c64xx_pd_on,
	},
};

static struct s3c64xx_pm_domain s3c64xx_pm_g = {
	.name = "G",
	.ena = S3C64XX_NORMALCFG_DOMAIN_G_ON,
	.pd = {
		.power_off = s3c64xx_pd_off,
		.power_on = s3c64xx_pd_on,
	},
};

static struct s3c64xx_pm_domain s3c64xx_pm_v = {
	.name = "V",
	.ena = S3C64XX_NORMALCFG_DOMAIN_V_ON,
	.pwr_stat = S3C64XX_BLKPWRSTAT_V,
	.pd = {
		.power_off = s3c64xx_pd_off,
		.power_on = s3c64xx_pd_on,
	},
};

static struct s3c64xx_pm_domain *s3c64xx_always_on_pm_domains[] = {
	&s3c64xx_pm_irom,
};

static struct s3c64xx_pm_domain *s3c64xx_pm_domains[] = {
	&s3c64xx_pm_etm,
	&s3c64xx_pm_g,
	&s3c64xx_pm_v,
	&s3c64xx_pm_i,
	&s3c64xx_pm_p,
	&s3c64xx_pm_s,
	&s3c64xx_pm_f,
};

#ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK
void s3c_pm_debug_smdkled(u32 set, u32 clear)
{
	unsigned long flags;
	int i;

	local_irq_save(flags);
	for (i = 0; i < 4; i++) {
		if (clear & (1 << i))
			gpio_set_value(S3C64XX_GPN(12 + i), 0);
		if (set & (1 << i))
			gpio_set_value(S3C64XX_GPN(12 + i), 1);
	}
	local_irq_restore(flags);
}
#endif

static struct sleep_save core_save[] = {
	SAVE_ITEM(S3C64XX_MEM0DRVCON),
	SAVE_ITEM(S3C64XX_MEM1DRVCON),
};

static struct sleep_save misc_save[] = {
	SAVE_ITEM(S3C64XX_AHB_CON0),
	SAVE_ITEM(S3C64XX_AHB_CON1),
	SAVE_ITEM(S3C64XX_AHB_CON2),
	
	SAVE_ITEM(S3C64XX_SPCON),

	SAVE_ITEM(S3C64XX_MEM0CONSTOP),
	SAVE_ITEM(S3C64XX_MEM1CONSTOP),
	SAVE_ITEM(S3C64XX_MEM0CONSLP0),
	SAVE_ITEM(S3C64XX_MEM0CONSLP1),
	SAVE_ITEM(S3C64XX_MEM1CONSLP),

	SAVE_ITEM(S3C64XX_SDMA_SEL),
	SAVE_ITEM(S3C64XX_MODEM_MIFPCON),

	SAVE_ITEM(S3C64XX_NORMAL_CFG),
};

void s3c_pm_configure_extint(void)
{
	__raw_writel(s3c_irqwake_eintmask, S3C64XX_EINT_MASK);
}

void s3c_pm_restore_core(void)
{
	__raw_writel(0, S3C64XX_EINT_MASK);

	s3c_pm_debug_smdkled(1 << 2, 0);

	s3c_pm_do_restore_core(core_save, ARRAY_SIZE(core_save));
	s3c_pm_do_restore(misc_save, ARRAY_SIZE(misc_save));
}

void s3c_pm_save_core(void)
{
	s3c_pm_do_save(misc_save, ARRAY_SIZE(misc_save));
	s3c_pm_do_save(core_save, ARRAY_SIZE(core_save));
}

/* since both s3c6400 and s3c6410 share the same sleep pm calls, we
 * put the per-cpu code in here until any new cpu comes along and changes
 * this.
 */

static int s3c64xx_cpu_suspend(unsigned long arg)
{
	unsigned long tmp;

	/* set our standby method to sleep */

	tmp = __raw_readl(S3C64XX_PWR_CFG);
	tmp &= ~S3C64XX_PWRCFG_CFG_WFI_MASK;
	tmp |= S3C64XX_PWRCFG_CFG_WFI_SLEEP;
	__raw_writel(tmp, S3C64XX_PWR_CFG);

	/* clear any old wakeup */

	__raw_writel(__raw_readl(S3C64XX_WAKEUP_STAT),
		     S3C64XX_WAKEUP_STAT);

	/* set the LED state to 0110 over sleep */
	s3c_pm_debug_smdkled(3 << 1, 0xf);

	/* issue the standby signal into the pm unit. Note, we
	 * issue a write-buffer drain just in case */

	tmp = 0;

	asm("b 1f\n\t"
	    ".align 5\n\t"
	    "1:\n\t"
	    "mcr p15, 0, %0, c7, c10, 5\n\t"
	    "mcr p15, 0, %0, c7, c10, 4\n\t"
	    "mcr p15, 0, %0, c7, c0, 4" :: "r" (tmp));

	/* we should never get past here */

	pr_info("Failed to suspend the system\n");
	return 1; /* Aborting suspend */
}

/* mapping of interrupts to parts of the wakeup mask */
static struct samsung_wakeup_mask wake_irqs[] = {
	{ .irq = IRQ_RTC_ALARM,	.bit = S3C64XX_PWRCFG_RTC_ALARM_DISABLE, },
	{ .irq = IRQ_RTC_TIC,	.bit = S3C64XX_PWRCFG_RTC_TICK_DISABLE, },
	{ .irq = IRQ_PENDN,	.bit = S3C64XX_PWRCFG_TS_DISABLE, },
	{ .irq = IRQ_HSMMC0,	.bit = S3C64XX_PWRCFG_MMC0_DISABLE, },
	{ .irq = IRQ_HSMMC1,	.bit = S3C64XX_PWRCFG_MMC1_DISABLE, },
	{ .irq = IRQ_HSMMC2,	.bit = S3C64XX_PWRCFG_MMC2_DISABLE, },
	{ .irq = NO_WAKEUP_IRQ,	.bit = S3C64XX_PWRCFG_BATF_DISABLE},
	{ .irq = NO_WAKEUP_IRQ,	.bit = S3C64XX_PWRCFG_MSM_DISABLE },
	{ .irq = NO_WAKEUP_IRQ,	.bit = S3C64XX_PWRCFG_HSI_DISABLE },
	{ .irq = NO_WAKEUP_IRQ,	.bit = S3C64XX_PWRCFG_MSM_DISABLE },
};

static void s3c64xx_pm_prepare(void)
{
	samsung_sync_wakemask(S3C64XX_PWR_CFG,
			      wake_irqs, ARRAY_SIZE(wake_irqs));

	/* store address of resume. */
	__raw_writel(virt_to_phys(s3c_cpu_resume), S3C64XX_INFORM0);

	/* ensure previous wakeup state is cleared before sleeping */
	__raw_writel(__raw_readl(S3C64XX_WAKEUP_STAT), S3C64XX_WAKEUP_STAT);
}

int __init s3c64xx_pm_init(void)
{
	int i;

	s3c_pm_init();

	for (i = 0; i < ARRAY_SIZE(s3c64xx_always_on_pm_domains); i++)
		pm_genpd_init(&s3c64xx_always_on_pm_domains[i]->pd,
			      &pm_domain_always_on_gov, false);

	for (i = 0; i < ARRAY_SIZE(s3c64xx_pm_domains); i++)
		pm_genpd_init(&s3c64xx_pm_domains[i]->pd, NULL, false);

#ifdef CONFIG_S3C_DEV_FB
	if (dev_get_platdata(&s3c_device_fb.dev))
		pm_genpd_add_device(&s3c64xx_pm_f.pd, &s3c_device_fb.dev);
#endif

	return 0;
}

static __init int s3c64xx_pm_initcall(void)
{
	pm_cpu_prep = s3c64xx_pm_prepare;
	pm_cpu_sleep = s3c64xx_cpu_suspend;
	pm_uart_udivslot = 1;

#ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK
	gpio_request(S3C64XX_GPN(12), "DEBUG_LED0");
	gpio_request(S3C64XX_GPN(13), "DEBUG_LED1");
	gpio_request(S3C64XX_GPN(14), "DEBUG_LED2");
	gpio_request(S3C64XX_GPN(15), "DEBUG_LED3");
	gpio_direction_output(S3C64XX_GPN(12), 0);
	gpio_direction_output(S3C64XX_GPN(13), 0);
	gpio_direction_output(S3C64XX_GPN(14), 0);
	gpio_direction_output(S3C64XX_GPN(15), 0);
#endif

	return 0;
}
arch_initcall(s3c64xx_pm_initcall);

int __init s3c64xx_pm_late_initcall(void)
{
	pm_genpd_poweroff_unused();

	return 0;
}
Commit	Line	Data
bd117bd1 BD	1	/* linux/arch/arm/plat-s3c64xx/pm.c
	2	*
	3	* Copyright 2008 Openmoko, Inc.
	4	* Copyright 2008 Simtec Electronics
	5	* Ben Dooks <ben@simtec.co.uk>
	6	* http://armlinux.simtec.co.uk/
	7	*
	8	* S3C64XX CPU PM support.
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License version 2 as
	12	* published by the Free Software Foundation.
	13	*/
	14
	15	#include <linux/init.h>
	16	#include <linux/suspend.h>
	17	#include <linux/serial_core.h>
	18	#include <linux/io.h>
f98d429d	19	#include <linux/gpio.h>
c656c306	20	#include <linux/pm_domain.h>
bd117bd1 BD	21
bd117bd1 BD	22	#include <mach/map.h>
fda22577	23	#include <mach/irqs.h>
bd117bd1	24
c656c306	25	#include <plat/devs.h>
bd117bd1	26	#include <plat/pm.h>
fda22577 BD	27	#include <plat/wakeup-mask.h>
fda22577 BD	28
3501c9ae BD	29	#include <mach/regs-gpio.h>
3501c9ae BD	30	#include <mach/regs-clock.h>
bd117bd1	31
8bb86ead	32	#include "regs-gpio-memport.h"
a81c1970	33	#include "regs-modem.h"
f2bfd174	34	#include "regs-sys.h"
e8f55885	35	#include "regs-syscon-power.h"
bd117bd1	36
c656c306 MB	37	struct s3c64xx_pm_domain {
	38	char *const name;
	39	u32 ena;
	40	u32 pwr_stat;
	41	struct generic_pm_domain pd;
	42	};
	43
	44	static int s3c64xx_pd_off(struct generic_pm_domain *domain)
	45	{
	46	struct s3c64xx_pm_domain *pd;
	47	u32 val;
	48
	49	pd = container_of(domain, struct s3c64xx_pm_domain, pd);
	50
	51	val = __raw_readl(S3C64XX_NORMAL_CFG);
	52	val &= ~(pd->ena);
	53	__raw_writel(val, S3C64XX_NORMAL_CFG);
	54
	55	return 0;
	56	}
	57
	58	static int s3c64xx_pd_on(struct generic_pm_domain *domain)
	59	{
	60	struct s3c64xx_pm_domain *pd;
	61	u32 val;
	62	long retry = 1000000L;
	63
	64	pd = container_of(domain, struct s3c64xx_pm_domain, pd);
	65
	66	val = __raw_readl(S3C64XX_NORMAL_CFG);
	67	val \|= pd->ena;
	68	__raw_writel(val, S3C64XX_NORMAL_CFG);
	69
	70	/* Not all domains provide power status readback */
	71	if (pd->pwr_stat) {
	72	do {
	73	cpu_relax();
	74	if (__raw_readl(S3C64XX_BLK_PWR_STAT) & pd->pwr_stat)
	75	break;
	76	} while (retry--);
	77
	78	if (!retry) {
	79	pr_err("Failed to start domain %s\n", pd->name);
	80	return -EBUSY;
	81	}
	82	}
	83
	84	return 0;
	85	}
	86
	87	static struct s3c64xx_pm_domain s3c64xx_pm_irom = {
	88	.name = "IROM",
	89	.ena = S3C64XX_NORMALCFG_IROM_ON,
	90	.pd = {
	91	.power_off = s3c64xx_pd_off,
	92	.power_on = s3c64xx_pd_on,
	93	},
	94	};
	95
	96	static struct s3c64xx_pm_domain s3c64xx_pm_etm = {
	97	.name = "ETM",
	98	.ena = S3C64XX_NORMALCFG_DOMAIN_ETM_ON,
	99	.pwr_stat = S3C64XX_BLKPWRSTAT_ETM,
	100	.pd = {
101	.power_off = s3c64xx_pd_off,
102	.power_on = s3c64xx_pd_on,
103	},
104	};
105
106	static struct s3c64xx_pm_domain s3c64xx_pm_s = {
107	.name = "S",
108	.ena = S3C64XX_NORMALCFG_DOMAIN_S_ON,
109	.pwr_stat = S3C64XX_BLKPWRSTAT_S,
110	.pd = {
111	.power_off = s3c64xx_pd_off,
112	.power_on = s3c64xx_pd_on,
113	},
114	};
115
116	static struct s3c64xx_pm_domain s3c64xx_pm_f = {
117	.name = "F",
118	.ena = S3C64XX_NORMALCFG_DOMAIN_F_ON,
119	.pwr_stat = S3C64XX_BLKPWRSTAT_F,
120	.pd = {
121	.power_off = s3c64xx_pd_off,
122	.power_on = s3c64xx_pd_on,
123	},
124	};
125
126	static struct s3c64xx_pm_domain s3c64xx_pm_p = {
127	.name = "P",
128	.ena = S3C64XX_NORMALCFG_DOMAIN_P_ON,
129	.pwr_stat = S3C64XX_BLKPWRSTAT_P,
130	.pd = {
131	.power_off = s3c64xx_pd_off,
132	.power_on = s3c64xx_pd_on,
133	},
134	};
135
136	static struct s3c64xx_pm_domain s3c64xx_pm_i = {
137	.name = "I",
138	.ena = S3C64XX_NORMALCFG_DOMAIN_I_ON,
139	.pwr_stat = S3C64XX_BLKPWRSTAT_I,
140	.pd = {
141	.power_off = s3c64xx_pd_off,
142	.power_on = s3c64xx_pd_on,
143	},
144	};
145
146	static struct s3c64xx_pm_domain s3c64xx_pm_g = {
147	.name = "G",
148	.ena = S3C64XX_NORMALCFG_DOMAIN_G_ON,
149	.pd = {
150	.power_off = s3c64xx_pd_off,
151	.power_on = s3c64xx_pd_on,
152	},
153	};
154
155	static struct s3c64xx_pm_domain s3c64xx_pm_v = {
156	.name = "V",
157	.ena = S3C64XX_NORMALCFG_DOMAIN_V_ON,
158	.pwr_stat = S3C64XX_BLKPWRSTAT_V,
159	.pd = {
160	.power_off = s3c64xx_pd_off,
161	.power_on = s3c64xx_pd_on,
162	},
163	};
164
165	static struct s3c64xx_pm_domain *s3c64xx_always_on_pm_domains[] = {
166	&s3c64xx_pm_irom,
167	};
168
169	static struct s3c64xx_pm_domain *s3c64xx_pm_domains[] = {
170	&s3c64xx_pm_etm,
171	&s3c64xx_pm_g,
172	&s3c64xx_pm_v,
173	&s3c64xx_pm_i,
174	&s3c64xx_pm_p,
175	&s3c64xx_pm_s,
176	&s3c64xx_pm_f,
177	};
178
bd117bd1	179	#ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK
bd117bd1 BD	180	void s3c_pm_debug_smdkled(u32 set, u32 clear)
	181	{
	182	unsigned long flags;
31858479	183	int i;
bd117bd1 BD	184
bd117bd1 BD	185	local_irq_save(flags);
31858479 JS	186	for (i = 0; i < 4; i++) {
	187	if (clear & (1 << i))
	188	gpio_set_value(S3C64XX_GPN(12 + i), 0);
	189	if (set & (1 << i))
	190	gpio_set_value(S3C64XX_GPN(12 + i), 1);
	191	}
bd117bd1 BD	192	local_irq_restore(flags);
	193	}
	194	#endif
	195
	196	static struct sleep_save core_save[] = {
bd117bd1 BD	197	SAVE_ITEM(S3C64XX_MEM0DRVCON),
bd117bd1 BD	198	SAVE_ITEM(S3C64XX_MEM1DRVCON),
bd117bd1 BD	199	};
	200
	201	static struct sleep_save misc_save[] = {
	202	SAVE_ITEM(S3C64XX_AHB_CON0),
	203	SAVE_ITEM(S3C64XX_AHB_CON1),
	204	SAVE_ITEM(S3C64XX_AHB_CON2),
	205
	206	SAVE_ITEM(S3C64XX_SPCON),
	207
	208	SAVE_ITEM(S3C64XX_MEM0CONSTOP),
	209	SAVE_ITEM(S3C64XX_MEM1CONSTOP),
	210	SAVE_ITEM(S3C64XX_MEM0CONSLP0),
	211	SAVE_ITEM(S3C64XX_MEM0CONSLP1),
	212	SAVE_ITEM(S3C64XX_MEM1CONSLP),
348276f4 TF	213
348276f4 TF	214	SAVE_ITEM(S3C64XX_SDMA_SEL),
d9018df0	215	SAVE_ITEM(S3C64XX_MODEM_MIFPCON),
c656c306 MB	216
c656c306 MB	217	SAVE_ITEM(S3C64XX_NORMAL_CFG),
bd117bd1 BD	218	};
	219
	220	void s3c_pm_configure_extint(void)
	221	{
	222	__raw_writel(s3c_irqwake_eintmask, S3C64XX_EINT_MASK);
	223	}
	224
bd117bd1 BD	225	void s3c_pm_restore_core(void)
	226	{
	227	__raw_writel(0, S3C64XX_EINT_MASK);
	228
	229	s3c_pm_debug_smdkled(1 << 2, 0);
	230
	231	s3c_pm_do_restore_core(core_save, ARRAY_SIZE(core_save));
	232	s3c_pm_do_restore(misc_save, ARRAY_SIZE(misc_save));
	233	}
	234
	235	void s3c_pm_save_core(void)
	236	{
	237	s3c_pm_do_save(misc_save, ARRAY_SIZE(misc_save));
	238	s3c_pm_do_save(core_save, ARRAY_SIZE(core_save));
	239	}
	240
	241	/* since both s3c6400 and s3c6410 share the same sleep pm calls, we
	242	* put the per-cpu code in here until any new cpu comes along and changes
	243	* this.
	244	*/
	245
29cb3cd2	246	static int s3c64xx_cpu_suspend(unsigned long arg)
bd117bd1 BD	247	{
	248	unsigned long tmp;
	249
	250	/* set our standby method to sleep */
	251
	252	tmp = __raw_readl(S3C64XX_PWR_CFG);
	253	tmp &= ~S3C64XX_PWRCFG_CFG_WFI_MASK;
	254	tmp \|= S3C64XX_PWRCFG_CFG_WFI_SLEEP;
	255	__raw_writel(tmp, S3C64XX_PWR_CFG);
	256
	257	/* clear any old wakeup */
	258
	259	__raw_writel(__raw_readl(S3C64XX_WAKEUP_STAT),
	260	S3C64XX_WAKEUP_STAT);
	261
	262	/* set the LED state to 0110 over sleep */
	263	s3c_pm_debug_smdkled(3 << 1, 0xf);
	264
	265	/* issue the standby signal into the pm unit. Note, we
	266	* issue a write-buffer drain just in case */
	267
	268	tmp = 0;
	269
	270	asm("b 1f\n\t"
	271	".align 5\n\t"
	272	"1:\n\t"
	273	"mcr p15, 0, %0, c7, c10, 5\n\t"
	274	"mcr p15, 0, %0, c7, c10, 4\n\t"
	275	"mcr p15, 0, %0, c7, c0, 4" :: "r" (tmp));
	276
	277	/* we should never get past here */
	278
d3fcacf5 AK	279	pr_info("Failed to suspend the system\n");
d3fcacf5 AK	280	return 1; /* Aborting suspend */
bd117bd1 BD	281	}
bd117bd1 BD	282
fda22577 BD	283	/* mapping of interrupts to parts of the wakeup mask */
	284	static struct samsung_wakeup_mask wake_irqs[] = {
	285	{ .irq = IRQ_RTC_ALARM, .bit = S3C64XX_PWRCFG_RTC_ALARM_DISABLE, },
	286	{ .irq = IRQ_RTC_TIC, .bit = S3C64XX_PWRCFG_RTC_TICK_DISABLE, },
	287	{ .irq = IRQ_PENDN, .bit = S3C64XX_PWRCFG_TS_DISABLE, },
	288	{ .irq = IRQ_HSMMC0, .bit = S3C64XX_PWRCFG_MMC0_DISABLE, },
	289	{ .irq = IRQ_HSMMC1, .bit = S3C64XX_PWRCFG_MMC1_DISABLE, },
	290	{ .irq = IRQ_HSMMC2, .bit = S3C64XX_PWRCFG_MMC2_DISABLE, },
	291	{ .irq = NO_WAKEUP_IRQ, .bit = S3C64XX_PWRCFG_BATF_DISABLE},
	292	{ .irq = NO_WAKEUP_IRQ, .bit = S3C64XX_PWRCFG_MSM_DISABLE },
	293	{ .irq = NO_WAKEUP_IRQ, .bit = S3C64XX_PWRCFG_HSI_DISABLE },
	294	{ .irq = NO_WAKEUP_IRQ, .bit = S3C64XX_PWRCFG_MSM_DISABLE },
	295	};
	296
bd117bd1 BD	297	static void s3c64xx_pm_prepare(void)
bd117bd1 BD	298	{
fda22577 BD	299	samsung_sync_wakemask(S3C64XX_PWR_CFG,
	300	wake_irqs, ARRAY_SIZE(wake_irqs));
	301
bd117bd1 BD	302	/* store address of resume. */
	303	__raw_writel(virt_to_phys(s3c_cpu_resume), S3C64XX_INFORM0);
	304
	305	/* ensure previous wakeup state is cleared before sleeping */
	306	__raw_writel(__raw_readl(S3C64XX_WAKEUP_STAT), S3C64XX_WAKEUP_STAT);
	307	}
	308
c656c306 MB	309	int __init s3c64xx_pm_init(void)
	310	{
	311	int i;
	312
	313	s3c_pm_init();
	314
	315	for (i = 0; i < ARRAY_SIZE(s3c64xx_always_on_pm_domains); i++)
	316	pm_genpd_init(&s3c64xx_always_on_pm_domains[i]->pd,
	317	&pm_domain_always_on_gov, false);
	318
	319	for (i = 0; i < ARRAY_SIZE(s3c64xx_pm_domains); i++)
	320	pm_genpd_init(&s3c64xx_pm_domains[i]->pd, NULL, false);
	321
c0d6cfd3	322	#ifdef CONFIG_S3C_DEV_FB
c656c306 MB	323	if (dev_get_platdata(&s3c_device_fb.dev))
c656c306 MB	324	pm_genpd_add_device(&s3c64xx_pm_f.pd, &s3c_device_fb.dev);
c0d6cfd3	325	#endif
c656c306 MB	326
	327	return 0;
	328	}
	329
	330	static __init int s3c64xx_pm_initcall(void)
bd117bd1 BD	331	{
	332	pm_cpu_prep = s3c64xx_pm_prepare;
	333	pm_cpu_sleep = s3c64xx_cpu_suspend;
	334	pm_uart_udivslot = 1;
31858479 JS	335
	336	#ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK
	337	gpio_request(S3C64XX_GPN(12), "DEBUG_LED0");
	338	gpio_request(S3C64XX_GPN(13), "DEBUG_LED1");
	339	gpio_request(S3C64XX_GPN(14), "DEBUG_LED2");
	340	gpio_request(S3C64XX_GPN(15), "DEBUG_LED3");
	341	gpio_direction_output(S3C64XX_GPN(12), 0);
	342	gpio_direction_output(S3C64XX_GPN(13), 0);
	343	gpio_direction_output(S3C64XX_GPN(14), 0);
	344	gpio_direction_output(S3C64XX_GPN(15), 0);
	345	#endif
	346
bd117bd1 BD	347	return 0;
bd117bd1 BD	348	}
c656c306 MB	349	arch_initcall(s3c64xx_pm_initcall);
c656c306 MB	350
cc8f252b	351	int __init s3c64xx_pm_late_initcall(void)
c656c306 MB	352	{
c656c306 MB	353	pm_genpd_poweroff_unused();
bd117bd1	354
c656c306 MB	355	return 0;
c656c306 MB	356	}