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 omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state); 22 extern int omap3_idle_init(void); 23 extern int omap4_idle_init(void); 24 extern int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused); 25 extern int (*omap_pm_suspend)(void); 26 27 #if defined(CONFIG_PM_OPP) 28 extern int omap3_opp_init(void); 29 extern int omap4_opp_init(void); 30 #else omap3_opp_init(void)31static inline int omap3_opp_init(void) 32 { 33 return -EINVAL; 34 } omap4_opp_init(void)35static inline int omap4_opp_init(void) 36 { 37 return -EINVAL; 38 } 39 #endif 40 41 /* 42 * cpuidle mach specific parameters 43 * 44 * The board code can override the default C-states definition using 45 * omap3_pm_init_cpuidle 46 */ 47 struct cpuidle_params { 48 u32 exit_latency; /* exit_latency = sleep + wake-up latencies */ 49 u32 target_residency; 50 u8 valid; /* validates the C-state */ 51 }; 52 53 #if defined(CONFIG_PM) && defined(CONFIG_CPU_IDLE) 54 extern void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params); 55 #else 56 static omap3_pm_init_cpuidle(struct cpuidle_params * cpuidle_board_params)57inline void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params) 58 { 59 } 60 #endif 61 62 extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm); 63 extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state); 64 65 #ifdef CONFIG_PM_DEBUG 66 extern u32 enable_off_mode; 67 #else 68 #define enable_off_mode 0 69 #endif 70 71 #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) 72 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev); 73 #else 74 #define pm_dbg_update_time(pwrdm, prev) do {} while (0); 75 #endif /* CONFIG_PM_DEBUG */ 76 77 /* 24xx */ 78 extern void omap24xx_idle_loop_suspend(void); 79 extern unsigned int omap24xx_idle_loop_suspend_sz; 80 81 extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl, 82 void __iomem *sdrc_power); 83 extern unsigned int omap24xx_cpu_suspend_sz; 84 85 /* 3xxx */ 86 extern void omap34xx_cpu_suspend(int save_state); 87 88 /* omap3_do_wfi function pointer and size, for copy to SRAM */ 89 extern void omap3_do_wfi(void); 90 extern unsigned int omap3_do_wfi_sz; 91 /* ... and its pointer from SRAM after copy */ 92 extern void (*omap3_do_wfi_sram)(void); 93 94 /* save_secure_ram_context function pointer and size, for copy to SRAM */ 95 extern int save_secure_ram_context(u32 *addr); 96 extern unsigned int save_secure_ram_context_sz; 97 98 extern void omap3_save_scratchpad_contents(void); 99 100 #define PM_RTA_ERRATUM_i608 (1 << 0) 101 #define PM_SDRC_WAKEUP_ERRATUM_i583 (1 << 1) 102 103 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) 104 extern u16 pm34xx_errata; 105 #define IS_PM34XX_ERRATUM(id) (pm34xx_errata & (id)) 106 extern void enable_omap3630_toggle_l2_on_restore(void); 107 #else 108 #define IS_PM34XX_ERRATUM(id) 0 enable_omap3630_toggle_l2_on_restore(void)109static inline void enable_omap3630_toggle_l2_on_restore(void) { } 110 #endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */ 111 112 #ifdef CONFIG_OMAP_SMARTREFLEX 113 extern int omap_devinit_smartreflex(void); 114 extern void omap_enable_smartreflex_on_init(void); 115 #else omap_devinit_smartreflex(void)116static inline int omap_devinit_smartreflex(void) 117 { 118 return -EINVAL; 119 } 120 omap_enable_smartreflex_on_init(void)121static inline void omap_enable_smartreflex_on_init(void) {} 122 #endif 123 124 #ifdef CONFIG_TWL4030_CORE 125 extern int omap3_twl_init(void); 126 extern int omap4_twl_init(void); 127 extern int omap3_twl_set_sr_bit(bool enable); 128 #else omap3_twl_init(void)129static inline int omap3_twl_init(void) 130 { 131 return -EINVAL; 132 } omap4_twl_init(void)133static inline int omap4_twl_init(void) 134 { 135 return -EINVAL; 136 } 137 #endif 138 139 #endif 140