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 <plat/powerdomain.h> 15 16 extern void *omap3_secure_ram_storage; 17 extern void omap3_pm_off_mode_enable(int); 18 extern void omap_sram_idle(void); 19 extern int omap3_can_sleep(void); 20 extern int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state); 21 extern int omap3_idle_init(void); 22 23 #if defined(CONFIG_PM_OPP) 24 extern int omap3_opp_init(void); 25 #else 26 static inline int omap3_opp_init(void) 27 { 28 return -EINVAL; 29 } 30 #endif 31 32 struct cpuidle_params { 33 u8 valid; 34 u32 sleep_latency; 35 u32 wake_latency; 36 u32 threshold; 37 }; 38 39 #if defined(CONFIG_PM) && defined(CONFIG_CPU_IDLE) 40 extern void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params); 41 #else 42 static 43 inline void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params) 44 { 45 } 46 #endif 47 48 extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm); 49 extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state); 50 51 extern u32 wakeup_timer_seconds; 52 extern u32 wakeup_timer_milliseconds; 53 extern struct omap_dm_timer *gptimer_wakeup; 54 55 #ifdef CONFIG_PM_DEBUG 56 extern void omap2_pm_dump(int mode, int resume, unsigned int us); 57 extern void omap2_pm_wakeup_on_timer(u32 seconds, u32 milliseconds); 58 extern int omap2_pm_debug; 59 extern u32 enable_off_mode; 60 extern u32 sleep_while_idle; 61 #else 62 #define omap2_pm_dump(mode, resume, us) do {} while (0); 63 #define omap2_pm_wakeup_on_timer(seconds, milliseconds) do {} while (0); 64 #define omap2_pm_debug 0 65 #define enable_off_mode 0 66 #define sleep_while_idle 0 67 #endif 68 69 #if defined(CONFIG_CPU_IDLE) 70 extern void omap3_cpuidle_update_states(void); 71 #endif 72 73 #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) 74 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev); 75 extern int pm_dbg_regset_save(int reg_set); 76 extern int pm_dbg_regset_init(int reg_set); 77 #else 78 #define pm_dbg_update_time(pwrdm, prev) do {} while (0); 79 #define pm_dbg_regset_save(reg_set) do {} while (0); 80 #define pm_dbg_regset_init(reg_set) do {} while (0); 81 #endif /* CONFIG_PM_DEBUG */ 82 83 extern void omap24xx_idle_loop_suspend(void); 84 85 extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl, 86 void __iomem *sdrc_power); 87 extern void omap34xx_cpu_suspend(u32 *addr, int save_state); 88 extern void save_secure_ram_context(u32 *addr); 89 extern void omap3_save_scratchpad_contents(void); 90 91 extern unsigned int omap24xx_idle_loop_suspend_sz; 92 extern unsigned int omap34xx_suspend_sz; 93 extern unsigned int save_secure_ram_context_sz; 94 extern unsigned int omap24xx_cpu_suspend_sz; 95 extern unsigned int omap34xx_cpu_suspend_sz; 96 97 #endif 98