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 19extern int __init omap3_idle_init(void); 20extern int __init omap4_idle_init(void); 21#else 22static inline int omap3_idle_init(void) 23{ 24 return 0; 25} 26 27static inline int omap4_idle_init(void) 28{ 29 return 0; 30} 31#endif 32 33extern void *omap3_secure_ram_storage; 34extern void omap3_pm_off_mode_enable(int); 35extern void omap_sram_idle(void); 36extern int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused); 37 38#if defined(CONFIG_PM_OPP) 39extern int omap3_opp_init(void); 40extern int omap4_opp_init(void); 41#else 42static inline int omap3_opp_init(void) 43{ 44 return -EINVAL; 45} 46static inline int omap4_opp_init(void) 47{ 48 return -EINVAL; 49} 50#endif 51 52extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm); 53extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state); 54 55#ifdef CONFIG_PM_DEBUG 56extern 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) 62extern 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 */ 68extern void omap24xx_idle_loop_suspend(void); 69extern unsigned int omap24xx_idle_loop_suspend_sz; 70 71extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl, 72 void __iomem *sdrc_power); 73extern unsigned int omap24xx_cpu_suspend_sz; 74 75/* 3xxx */ 76extern void omap34xx_cpu_suspend(int save_state); 77 78/* omap3_do_wfi function pointer and size, for copy to SRAM */ 79extern void omap3_do_wfi(void); 80extern unsigned int omap3_do_wfi_sz; 81/* ... and its pointer from SRAM after copy */ 82extern void (*omap3_do_wfi_sram)(void); 83 84/* save_secure_ram_context function pointer and size, for copy to SRAM */ 85extern int save_secure_ram_context(u32 *addr); 86extern unsigned int save_secure_ram_context_sz; 87 88extern void omap3_save_scratchpad_contents(void); 89 90#define PM_RTA_ERRATUM_i608 (1 << 0) 91#define PM_SDRC_WAKEUP_ERRATUM_i583 (1 << 1) 92#define PM_PER_MEMORIES_ERRATUM_i582 (1 << 2) 93 94#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) 95extern u16 pm34xx_errata; 96#define IS_PM34XX_ERRATUM(id) (pm34xx_errata & (id)) 97extern void enable_omap3630_toggle_l2_on_restore(void); 98#else 99#define IS_PM34XX_ERRATUM(id) 0 100static inline void enable_omap3630_toggle_l2_on_restore(void) { } 101#endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */ 102 103#define PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD (1 << 0) 104#define PM_OMAP4_CPU_OSWR_DISABLE (1 << 1) 105 106#if defined(CONFIG_PM) && (defined(CONFIG_ARCH_OMAP4) ||\ 107 defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)) 108extern 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 115extern int omap_devinit_smartreflex(void); 116extern void omap_enable_smartreflex_on_init(void); 117#else 118static inline int omap_devinit_smartreflex(void) 119{ 120 return -EINVAL; 121} 122 123static inline void omap_enable_smartreflex_on_init(void) {} 124#endif 125 126#ifdef CONFIG_TWL4030_CORE 127extern int omap3_twl_init(void); 128extern int omap4_twl_init(void); 129extern int omap3_twl_set_sr_bit(bool enable); 130#else 131static inline int omap3_twl_init(void) 132{ 133 return -EINVAL; 134} 135static inline int omap4_twl_init(void) 136{ 137 return -EINVAL; 138} 139#endif 140 141#ifdef CONFIG_PM 142extern void omap_pm_setup_oscillator(u32 tstart, u32 tshut); 143extern void omap_pm_get_oscillator(u32 *tstart, u32 *tshut); 144extern void omap_pm_setup_sr_i2c_pcb_length(u32 mm); 145#else 146static inline void omap_pm_setup_oscillator(u32 tstart, u32 tshut) { } 147static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { *tstart = *tshut = 0; } 148static inline void omap_pm_setup_sr_i2c_pcb_length(u32 mm) { } 149#endif 150 151#ifdef CONFIG_SUSPEND 152void omap_common_suspend_init(void *pm_suspend); 153#else 154static inline void omap_common_suspend_init(void *pm_suspend) 155{ 156} 157#endif /* CONFIG_SUSPEND */ 158#endif 159