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/* linux/arch/arm/mach-exynos/include/mach/pmu.h
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* EXYNOS4210 - PMU 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.
*/
#ifndef __ASM_ARCH_PMU_H
#define __ASM_ARCH_PMU_H __FILE__
#include <linux/cpu.h>
#include <linux/io.h>
#include <mach/regs-pmu.h>
static inline void exynos4_reset_assert_ctrl(unsigned int on)
{
unsigned int i;
unsigned int core_option;
for (i = 0; i < num_possible_cpus(); i++) {
core_option = __raw_readl(S5P_ARM_CORE_OPTION(i));
core_option &= ~S5P_USE_DELAYED_RESET_ASSERTION;
core_option |= (on << S5P_USE_DELAYED_RESET_OFFSET);
#if !defined(CONFIG_CPU_EXYNOS4210)
pr_debug("%s %p %08x\n", __func__,
S5P_ARM_CORE_OPTION(i), core_option);
#endif
__raw_writel(core_option, S5P_ARM_CORE_OPTION(i));
}
}
static inline int exynos4_is_c2c_use(void)
{
unsigned int ret;
ret = __raw_readl(S5P_C2C_CTRL);
return ret;
}
enum sys_powerdown {
SYS_AFTR,
SYS_LPA,
SYS_SLEEP,
NUM_SYS_POWERDOWN,
};
struct exynos4_pmu_conf {
void __iomem *reg;
unsigned long val[NUM_SYS_POWERDOWN];
};
enum c2c_pwr_mode {
MIN_LATENCY,
SHORT_LATENCY,
MAX_LATENCY,
};
#if defined(CONFIG_ARCH_EXYNOS4)
enum xclkout_select {
XCLKOUT_CMU_DMC = 0x0,
XCLKOUT_CMU_TOP = 0x1,
XCLKOUT_CMU_LEFTBUS = 0x2,
XCLKOUT_CMU_RIGHTBUS = 0x3,
XCLKOUT_CMU_CPU = 0x4,
XCLKOUT_CMU_ISP = 0x5, /* Not support at EXYNOS4210 */
XCLKOUT_XXTI = 0x8,
XCLKOUT_XUSBXTI = 0x9,
XCLKOUT_RTC_TICCLK = 0xC,
XCLKOUT_RTCCLK = 0xD,
XCLKOUT_CLKOUT_DEBUG = 0xE, /* Not support at EXYNOS4210 */
};
#elif defined(CONFIG_CPU_EXYNOS5250)
enum xclkout_select {
XCLKOUT_DEBUG = 0x0,
XCLKOUT_CMU_CDREX = 0x1,
XCLKOUT_CMU_CORE = 0x2,
XCLKOUT_CMU_ISP = 0x3,
XCLKOUT_CMU_LEX = 0x4,
XCLKOUT_CMU_MIX = 0x5,
XCLKOUT_CMU_RIX = 0x6,
XCLKOUT_CMU_TOP = 0x7,
XCLKOUT_CMU_CPU = 0x8,
XCLKOUT_CMU_ACP = 0x9,
XCLKOUT_XXTI = 0x10,
XCLKOUT_XUSBXTI = 0x11,
XCLKOUT_TICCLK = 0x12,
XCLKOUT_RTCCLK = 0x13,
};
#endif
struct exynos4_c2c_pmu_conf {
void __iomem *reg;
unsigned long val;
};
/* external function for exynos4 series */
extern void exynos4_sys_powerdown_conf(enum sys_powerdown mode);
extern int exynos4_enter_lp(unsigned long *saveblk, long);
extern void exynos4_idle_resume(void);
extern void exynos4_c2c_request_pwr_mode(enum c2c_pwr_mode mode);
extern void exynos4_sys_powerdown_xusbxti_control(unsigned int enable);
extern void exynos4_pmu_xclkout_set(unsigned int enable, enum xclkout_select source);
/* external function for exynos5 series */
extern void exynos5_sys_powerdown_conf(enum sys_powerdown mode);
extern int exynos5_enter_lp(unsigned long *saveblk, long);
extern void exynos5_idle_resume(void);
extern void exynos5_sys_powerdown_xxti_control(unsigned int enable);
extern void exynos5_pmu_xclkout_set(unsigned int enable, enum xclkout_select source);
#endif /* __ASM_ARCH_PMU_H */
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