1 /* 2 * OMAP2/3 Power Management Routines 3 * 4 * Copyright (C) 2008 Nokia Corporation 5 * Jouni Hogander 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11 #ifndef __ARCH_ARM_MACH_OMAP2_PM_H 12 #define __ARCH_ARM_MACH_OMAP2_PM_H 13 14 #include <linux/err.h> 15 16 #include "powerdomain.h" 17 18 extern void *omap3_secure_ram_storage; 19 extern void omap3_pm_off_mode_enable(int); 20 extern void omap_sram_idle(void); 21 extern int omap3_can_sleep(void); 22 extern int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state); 23 extern int omap3_idle_init(void); 24 25 #if defined(CONFIG_PM_OPP) 26 extern int omap3_opp_init(void); 27 extern int omap4_opp_init(void); 28 #else 29 static inline int omap3_opp_init(void) 30 { 31 return -EINVAL; 32 } 33 static inline int omap4_opp_init(void) 34 { 35 return -EINVAL; 36 } 37 #endif 38 39 struct cpuidle_params { 40 u8 valid; 41 u32 sleep_latency; 42 u32 wake_latency; 43 u32 threshold; 44 }; 45 46 #if defined(CONFIG_PM) && defined(CONFIG_CPU_IDLE) 47 extern void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params); 48 #else 49 static 50 inline void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params) 51 { 52 } 53 #endif 54 55 extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm); 56 extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state); 57 58 extern u32 wakeup_timer_seconds; 59 extern u32 wakeup_timer_milliseconds; 60 extern struct omap_dm_timer *gptimer_wakeup; 61 62 #ifdef CONFIG_PM_DEBUG 63 extern void omap2_pm_dump(int mode, int resume, unsigned int us); 64 extern void omap2_pm_wakeup_on_timer(u32 seconds, u32 milliseconds); 65 extern int omap2_pm_debug; 66 extern u32 enable_off_mode; 67 extern u32 sleep_while_idle; 68 #else 69 #define omap2_pm_dump(mode, resume, us) do {} while (0); 70 #define omap2_pm_wakeup_on_timer(seconds, milliseconds) do {} while (0); 71 #define omap2_pm_debug 0 72 #define enable_off_mode 0 73 #define sleep_while_idle 0 74 #endif 75 76 #if defined(CONFIG_CPU_IDLE) 77 extern void omap3_cpuidle_update_states(u32, u32); 78 #endif 79 80 #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) 81 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev); 82 extern int pm_dbg_regset_save(int reg_set); 83 extern int pm_dbg_regset_init(int reg_set); 84 #else 85 #define pm_dbg_update_time(pwrdm, prev) do {} while (0); 86 #define pm_dbg_regset_save(reg_set) do {} while (0); 87 #define pm_dbg_regset_init(reg_set) do {} while (0); 88 #endif /* CONFIG_PM_DEBUG */ 89 90 extern void omap24xx_idle_loop_suspend(void); 91 92 extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl, 93 void __iomem *sdrc_power); 94 extern void omap34xx_cpu_suspend(u32 *addr, int save_state); 95 extern void save_secure_ram_context(u32 *addr); 96 extern void omap3_save_scratchpad_contents(void); 97 98 extern unsigned int omap24xx_idle_loop_suspend_sz; 99 extern unsigned int save_secure_ram_context_sz; 100 extern unsigned int omap24xx_cpu_suspend_sz; 101 extern unsigned int omap34xx_cpu_suspend_sz; 102 103 #define PM_RTA_ERRATUM_i608 (1 << 0) 104 #define PM_SDRC_WAKEUP_ERRATUM_i583 (1 << 1) 105 106 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) 107 extern u16 pm34xx_errata; 108 #define IS_PM34XX_ERRATUM(id) (pm34xx_errata & (id)) 109 extern void enable_omap3630_toggle_l2_on_restore(void); 110 #else 111 #define IS_PM34XX_ERRATUM(id) 0 112 static inline void enable_omap3630_toggle_l2_on_restore(void) { } 113 #endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */ 114 115 #ifdef CONFIG_OMAP_SMARTREFLEX 116 extern int omap_devinit_smartreflex(void); 117 extern void omap_enable_smartreflex_on_init(void); 118 #else 119 static inline int omap_devinit_smartreflex(void) 120 { 121 return -EINVAL; 122 } 123 124 static inline void omap_enable_smartreflex_on_init(void) {} 125 #endif 126 127 #ifdef CONFIG_TWL4030_CORE 128 extern int omap3_twl_init(void); 129 extern int omap4_twl_init(void); 130 #else 131 static inline int omap3_twl_init(void) 132 { 133 return -EINVAL; 134 } 135 static inline int omap4_twl_init(void) 136 { 137 return -EINVAL; 138 } 139 #endif 140 141 #endif 142