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_pm_clkdms_setup(struct clockdomain *clkdm, void *unused); 37 38 #if defined(CONFIG_PM_OPP) 39 extern int omap3_opp_init(void); 40 extern int omap4_opp_init(void); 41 #else 42 static inline int omap3_opp_init(void) 43 { 44 return -EINVAL; 45 } 46 static inline int omap4_opp_init(void) 47 { 48 return -EINVAL; 49 } 50 #endif 51 52 extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm); 53 extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state); 54 55 #ifdef CONFIG_PM_DEBUG 56 extern u32 enable_off_mode; 57 #else 58 #define enable_off_mode 0 59 #endif 60 61 #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) 62 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev); 63 #else 64 #define pm_dbg_update_time(pwrdm, prev) do {} while (0); 65 #endif /* CONFIG_PM_DEBUG */ 66 67 /* 24xx */ 68 extern void omap24xx_idle_loop_suspend(void); 69 extern unsigned int omap24xx_idle_loop_suspend_sz; 70 71 extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl, 72 void __iomem *sdrc_power); 73 extern unsigned int omap24xx_cpu_suspend_sz; 74 75 /* 3xxx */ 76 extern void omap34xx_cpu_suspend(int save_state); 77 78 /* omap3_do_wfi function pointer and size, for copy to SRAM */ 79 extern void omap3_do_wfi(void); 80 extern unsigned int omap3_do_wfi_sz; 81 /* ... and its pointer from SRAM after copy */ 82 extern void (*omap3_do_wfi_sram)(void); 83 84 extern struct am33xx_pm_sram_addr am33xx_pm_sram; 85 extern struct am33xx_pm_sram_addr am43xx_pm_sram; 86 87 extern void omap3_save_scratchpad_contents(void); 88 89 #define PM_RTA_ERRATUM_i608 (1 << 0) 90 #define PM_SDRC_WAKEUP_ERRATUM_i583 (1 << 1) 91 #define PM_PER_MEMORIES_ERRATUM_i582 (1 << 2) 92 93 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) 94 extern u16 pm34xx_errata; 95 #define IS_PM34XX_ERRATUM(id) (pm34xx_errata & (id)) 96 extern void enable_omap3630_toggle_l2_on_restore(void); 97 #else 98 #define IS_PM34XX_ERRATUM(id) 0 99 static inline void enable_omap3630_toggle_l2_on_restore(void) { } 100 #endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */ 101 102 #define PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD (1 << 0) 103 #define PM_OMAP4_CPU_OSWR_DISABLE (1 << 1) 104 105 #if defined(CONFIG_PM) && (defined(CONFIG_ARCH_OMAP4) ||\ 106 defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)) 107 extern u16 pm44xx_errata; 108 #define IS_PM44XX_ERRATUM(id) (pm44xx_errata & (id)) 109 #else 110 #define IS_PM44XX_ERRATUM(id) 0 111 #endif 112 113 #ifdef CONFIG_POWER_AVS_OMAP 114 extern int omap_devinit_smartreflex(void); 115 extern void omap_enable_smartreflex_on_init(void); 116 #else 117 static inline int omap_devinit_smartreflex(void) 118 { 119 return -EINVAL; 120 } 121 122 static inline void omap_enable_smartreflex_on_init(void) {} 123 #endif 124 125 #ifdef CONFIG_TWL4030_CORE 126 extern int omap3_twl_init(void); 127 extern int omap4_twl_init(void); 128 extern int omap3_twl_set_sr_bit(bool enable); 129 #else 130 static inline int omap3_twl_init(void) 131 { 132 return -EINVAL; 133 } 134 static inline int omap4_twl_init(void) 135 { 136 return -EINVAL; 137 } 138 #endif 139 140 #ifdef CONFIG_PM 141 extern void omap_pm_setup_oscillator(u32 tstart, u32 tshut); 142 extern void omap_pm_get_oscillator(u32 *tstart, u32 *tshut); 143 extern void omap_pm_setup_sr_i2c_pcb_length(u32 mm); 144 #else 145 static inline void omap_pm_setup_oscillator(u32 tstart, u32 tshut) { } 146 static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { *tstart = *tshut = 0; } 147 static inline void omap_pm_setup_sr_i2c_pcb_length(u32 mm) { } 148 #endif 149 150 #ifdef CONFIG_SUSPEND 151 void omap_common_suspend_init(void *pm_suspend); 152 #else 153 static inline void omap_common_suspend_init(void *pm_suspend) 154 { 155 } 156 #endif /* CONFIG_SUSPEND */ 157 #endif 158