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 #ifdef CONFIG_CPU_IDLE 19 extern int __init omap3_idle_init(void); 20 extern int __init omap4_idle_init(void); 21 #else 22 static inline int omap3_idle_init(void) 23 { 24 return 0; 25 } 26 27 static inline int omap4_idle_init(void) 28 { 29 return 0; 30 } 31 #endif 32 33 extern void *omap3_secure_ram_storage; 34 extern void omap3_pm_off_mode_enable(int); 35 extern void omap_sram_idle(void); 36 extern int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state); 37 extern int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused); 38 extern int (*omap_pm_suspend)(void); 39 40 #if defined(CONFIG_PM_OPP) 41 extern int omap3_opp_init(void); 42 extern int omap4_opp_init(void); 43 #else 44 static inline int omap3_opp_init(void) 45 { 46 return -EINVAL; 47 } 48 static inline int omap4_opp_init(void) 49 { 50 return -EINVAL; 51 } 52 #endif 53 54 extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm); 55 extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state); 56 57 #ifdef CONFIG_PM_DEBUG 58 extern u32 enable_off_mode; 59 #else 60 #define enable_off_mode 0 61 #endif 62 63 #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) 64 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev); 65 #else 66 #define pm_dbg_update_time(pwrdm, prev) do {} while (0); 67 #endif /* CONFIG_PM_DEBUG */ 68 69 /* 24xx */ 70 extern void omap24xx_idle_loop_suspend(void); 71 extern unsigned int omap24xx_idle_loop_suspend_sz; 72 73 extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl, 74 void __iomem *sdrc_power); 75 extern unsigned int omap24xx_cpu_suspend_sz; 76 77 /* 3xxx */ 78 extern void omap34xx_cpu_suspend(int save_state); 79 80 /* omap3_do_wfi function pointer and size, for copy to SRAM */ 81 extern void omap3_do_wfi(void); 82 extern unsigned int omap3_do_wfi_sz; 83 /* ... and its pointer from SRAM after copy */ 84 extern void (*omap3_do_wfi_sram)(void); 85 86 /* save_secure_ram_context function pointer and size, for copy to SRAM */ 87 extern int save_secure_ram_context(u32 *addr); 88 extern unsigned int save_secure_ram_context_sz; 89 90 extern void omap3_save_scratchpad_contents(void); 91 92 #define PM_RTA_ERRATUM_i608 (1 << 0) 93 #define PM_SDRC_WAKEUP_ERRATUM_i583 (1 << 1) 94 #define PM_PER_MEMORIES_ERRATUM_i582 (1 << 2) 95 96 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) 97 extern u16 pm34xx_errata; 98 #define IS_PM34XX_ERRATUM(id) (pm34xx_errata & (id)) 99 extern void enable_omap3630_toggle_l2_on_restore(void); 100 #else 101 #define IS_PM34XX_ERRATUM(id) 0 102 static inline void enable_omap3630_toggle_l2_on_restore(void) { } 103 #endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */ 104 105 #define PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD (1 << 0) 106 107 #if defined(CONFIG_ARCH_OMAP4) 108 extern u16 pm44xx_errata; 109 #define IS_PM44XX_ERRATUM(id) (pm44xx_errata & (id)) 110 #else 111 #define IS_PM44XX_ERRATUM(id) 0 112 #endif 113 114 #ifdef CONFIG_POWER_AVS_OMAP 115 extern int omap_devinit_smartreflex(void); 116 extern void omap_enable_smartreflex_on_init(void); 117 #else 118 static inline int omap_devinit_smartreflex(void) 119 { 120 return -EINVAL; 121 } 122 123 static inline void omap_enable_smartreflex_on_init(void) {} 124 #endif 125 126 #ifdef CONFIG_TWL4030_CORE 127 extern int omap3_twl_init(void); 128 extern int omap4_twl_init(void); 129 extern int omap3_twl_set_sr_bit(bool enable); 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 #ifdef CONFIG_PM 142 extern void omap_pm_setup_oscillator(u32 tstart, u32 tshut); 143 extern void omap_pm_get_oscillator(u32 *tstart, u32 *tshut); 144 extern void omap_pm_setup_sr_i2c_pcb_length(u32 mm); 145 #else 146 static inline void omap_pm_setup_oscillator(u32 tstart, u32 tshut) { } 147 static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { *tstart = *tshut = 0; } 148 static inline void omap_pm_setup_sr_i2c_pcb_length(u32 mm) { } 149 #endif 150 151 #endif 152