55 lines
1.9 KiB
C
Executable File
55 lines
1.9 KiB
C
Executable File
/*
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* Copyright (c) 2015 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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*
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* EXYNOS - PMU(Power Management Unit) support
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __EXYNOS_PMU_H
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#define __EXYNOS_PMU_H __FILE__
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/**
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* struct exynos_cpu_power_ops
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*
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* CPU power control operations
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*
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* @power_up : Set cpu configuration register
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* @power_down : Clear cpu configuration register
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* @power_state : Show cpu status. Return true if cpu power on, otherwise return false.
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*/
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struct exynos_cpu_power_ops {
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void (*power_up)(unsigned int cpu);
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void (*power_down)(unsigned int cpu);
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int (*power_state)(unsigned int cpu);
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void (*cluster_up)(unsigned int cpu);
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void (*cluster_down)(unsigned int cpu);
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int (*cluster_state)(unsigned int cpu);
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};
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extern struct exynos_cpu_power_ops exynos_cpu;
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/**
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* The APIs to control the PMU
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*/
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#ifdef CONFIG_EXYNOS_PMU
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extern int exynos_pmu_read(unsigned int offset, unsigned int *val);
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extern int exynos_pmu_write(unsigned int offset, unsigned int val);
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extern int exynos_pmu_update(unsigned int offset, unsigned int mask, unsigned int val);
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extern void exynos_cpu_reset_enable(unsigned int cpu);
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extern void exynos_cpu_reset_disable(unsigned int cpu);
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extern int exynos_check_cp_status(void);
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#else
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static inline int exynos_pmu_read(unsigned int offset, unsigned int *val) {return 0;}
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static inline int exynos_pmu_write(unsigned int offset, unsigned int val) {return 0;}
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static inline int exynos_pmu_update(unsigned int offset, unsigned int mask, unsigned int val) {return 0;}
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static inline void exynos_cpu_reset_enable(unsigned int cpu) {return ;}
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static inline void exynos_cpu_reset_disable(unsigned int cpu) {return ;}
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static inline int exynos_check_cp_status(void) {return 0;}
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#endif
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#endif /* __EXYNOS_PMU_H */
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