1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * OMAP2/3 Power Management Routines 4 * 5 * Copyright (C) 2008 Nokia Corporation 6 * Jouni Hogander 7 */ 8 #ifndef __ARCH_ARM_MACH_OMAP2_PM_H 9 #define __ARCH_ARM_MACH_OMAP2_PM_H 10 11 #include <linux/err.h> 12 13 #include "powerdomain.h" 14 15 #ifdef CONFIG_CPU_IDLE 16 extern int __init omap3_idle_init(void); 17 extern int __init omap4_idle_init(void); 18 #else 19 static inline int omap3_idle_init(void) 20 { 21 return 0; 22 } 23 24 static inline int omap4_idle_init(void) 25 { 26 return 0; 27 } 28 #endif 29 30 extern void *omap3_secure_ram_storage; 31 extern void omap3_pm_off_mode_enable(int); 32 extern void omap_sram_idle(void); 33 extern int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused); 34 35 #if defined(CONFIG_PM_OPP) 36 extern int omap3_opp_init(void); 37 extern int omap4_opp_init(void); 38 #else 39 static inline int omap3_opp_init(void) 40 { 41 return -EINVAL; 42 } 43 static inline int omap4_opp_init(void) 44 { 45 return -EINVAL; 46 } 47 #endif 48 49 extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm); 50 extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state); 51 52 extern u32 enable_off_mode; 53 54 #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) 55 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev); 56 #else 57 #define pm_dbg_update_time(pwrdm, prev) do {} while (0); 58 #endif /* CONFIG_PM_DEBUG */ 59 60 /* 24xx */ 61 extern void omap24xx_idle_loop_suspend(void); 62 extern unsigned int omap24xx_idle_loop_suspend_sz; 63 64 extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl, 65 void __iomem *sdrc_power); 66 extern unsigned int omap24xx_cpu_suspend_sz; 67 68 /* 3xxx */ 69 extern void omap34xx_cpu_suspend(int save_state); 70 71 /* omap3_do_wfi function pointer and size, for copy to SRAM */ 72 extern void omap3_do_wfi(void); 73 extern unsigned int omap3_do_wfi_sz; 74 /* ... and its pointer from SRAM after copy */ 75 extern void (*omap3_do_wfi_sram)(void); 76 77 extern struct am33xx_pm_sram_addr am33xx_pm_sram; 78 extern struct am33xx_pm_sram_addr am43xx_pm_sram; 79 80 extern void omap3_save_scratchpad_contents(void); 81 82 #define PM_RTA_ERRATUM_i608 (1 << 0) 83 #define PM_SDRC_WAKEUP_ERRATUM_i583 (1 << 1) 84 #define PM_PER_MEMORIES_ERRATUM_i582 (1 << 2) 85 86 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) 87 extern u16 pm34xx_errata; 88 #define IS_PM34XX_ERRATUM(id) (pm34xx_errata & (id)) 89 extern void enable_omap3630_toggle_l2_on_restore(void); 90 #else 91 #define IS_PM34XX_ERRATUM(id) 0 92 static inline void enable_omap3630_toggle_l2_on_restore(void) { } 93 #endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */ 94 95 #define PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD (1 << 0) 96 #define PM_OMAP4_CPU_OSWR_DISABLE (1 << 1) 97 98 #if defined(CONFIG_PM) && (defined(CONFIG_ARCH_OMAP4) ||\ 99 defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)) 100 extern u16 pm44xx_errata; 101 #define IS_PM44XX_ERRATUM(id) (pm44xx_errata & (id)) 102 #else 103 #define IS_PM44XX_ERRATUM(id) 0 104 #endif 105 106 #define OMAP4_VP_CONFIG_ERROROFFSET 0x00 107 #define OMAP4_VP_VSTEPMIN_VSTEPMIN 0x01 108 #define OMAP4_VP_VSTEPMAX_VSTEPMAX 0x04 109 #define OMAP4_VP_VLIMITTO_TIMEOUT_US 200 110 111 #ifdef CONFIG_POWER_AVS_OMAP 112 extern int omap_devinit_smartreflex(void); 113 extern void omap_enable_smartreflex_on_init(void); 114 #else 115 static inline int omap_devinit_smartreflex(void) 116 { 117 return -EINVAL; 118 } 119 120 static inline void omap_enable_smartreflex_on_init(void) {} 121 #endif 122 123 #ifdef CONFIG_TWL4030_CORE 124 extern int omap3_twl_init(void); 125 extern int omap4_twl_init(void); 126 extern int omap3_twl_set_sr_bit(bool enable); 127 #else 128 static inline int omap3_twl_init(void) 129 { 130 return -EINVAL; 131 } 132 static inline int omap4_twl_init(void) 133 { 134 return -EINVAL; 135 } 136 #endif 137 138 #if IS_ENABLED(CONFIG_MFD_CPCAP) 139 extern int omap4_cpcap_init(void); 140 #else 141 static inline int omap4_cpcap_init(void) 142 { 143 return -EINVAL; 144 } 145 #endif 146 147 #ifdef CONFIG_PM 148 extern void omap_pm_setup_oscillator(u32 tstart, u32 tshut); 149 extern void omap_pm_get_oscillator(u32 *tstart, u32 *tshut); 150 extern void omap_pm_setup_sr_i2c_pcb_length(u32 mm); 151 #else 152 static inline void omap_pm_setup_oscillator(u32 tstart, u32 tshut) { } 153 static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { *tstart = *tshut = 0; } 154 static inline void omap_pm_setup_sr_i2c_pcb_length(u32 mm) { } 155 #endif 156 157 #ifdef CONFIG_SUSPEND 158 void omap_common_suspend_init(void *pm_suspend); 159 #else 160 static inline void omap_common_suspend_init(void *pm_suspend) 161 { 162 } 163 #endif /* CONFIG_SUSPEND */ 164 #endif 165