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 #ifdef CONFIG_PM_DEBUG 53 extern u32 enable_off_mode; 54 #else 55 #define enable_off_mode 0 56 #endif 57 58 #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) 59 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev); 60 #else 61 #define pm_dbg_update_time(pwrdm, prev) do {} while (0); 62 #endif /* CONFIG_PM_DEBUG */ 63 64 /* 24xx */ 65 extern void omap24xx_idle_loop_suspend(void); 66 extern unsigned int omap24xx_idle_loop_suspend_sz; 67 68 extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl, 69 void __iomem *sdrc_power); 70 extern unsigned int omap24xx_cpu_suspend_sz; 71 72 /* 3xxx */ 73 extern void omap34xx_cpu_suspend(int save_state); 74 75 /* omap3_do_wfi function pointer and size, for copy to SRAM */ 76 extern void omap3_do_wfi(void); 77 extern unsigned int omap3_do_wfi_sz; 78 /* ... and its pointer from SRAM after copy */ 79 extern void (*omap3_do_wfi_sram)(void); 80 81 extern struct am33xx_pm_sram_addr am33xx_pm_sram; 82 extern struct am33xx_pm_sram_addr am43xx_pm_sram; 83 84 extern void omap3_save_scratchpad_contents(void); 85 86 #define PM_RTA_ERRATUM_i608 (1 << 0) 87 #define PM_SDRC_WAKEUP_ERRATUM_i583 (1 << 1) 88 #define PM_PER_MEMORIES_ERRATUM_i582 (1 << 2) 89 90 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) 91 extern u16 pm34xx_errata; 92 #define IS_PM34XX_ERRATUM(id) (pm34xx_errata & (id)) 93 extern void enable_omap3630_toggle_l2_on_restore(void); 94 #else 95 #define IS_PM34XX_ERRATUM(id) 0 96 static inline void enable_omap3630_toggle_l2_on_restore(void) { } 97 #endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */ 98 99 #define PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD (1 << 0) 100 #define PM_OMAP4_CPU_OSWR_DISABLE (1 << 1) 101 102 #if defined(CONFIG_PM) && (defined(CONFIG_ARCH_OMAP4) ||\ 103 defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)) 104 extern u16 pm44xx_errata; 105 #define IS_PM44XX_ERRATUM(id) (pm44xx_errata & (id)) 106 #else 107 #define IS_PM44XX_ERRATUM(id) 0 108 #endif 109 110 #define OMAP4_VP_CONFIG_ERROROFFSET 0x00 111 #define OMAP4_VP_VSTEPMIN_VSTEPMIN 0x01 112 #define OMAP4_VP_VSTEPMAX_VSTEPMAX 0x04 113 #define OMAP4_VP_VLIMITTO_TIMEOUT_US 200 114 115 #ifdef CONFIG_POWER_AVS_OMAP 116 extern int omap_devinit_smartreflex(void); 117 extern void omap_enable_smartreflex_on_init(void); 118 #else 119 static inline int omap_devinit_smartreflex(void) 120 { 121 return -EINVAL; 122 } 123 124 static inline void omap_enable_smartreflex_on_init(void) {} 125 #endif 126 127 #ifdef CONFIG_TWL4030_CORE 128 extern int omap3_twl_init(void); 129 extern int omap4_twl_init(void); 130 extern int omap3_twl_set_sr_bit(bool enable); 131 #else 132 static inline int omap3_twl_init(void) 133 { 134 return -EINVAL; 135 } 136 static inline int omap4_twl_init(void) 137 { 138 return -EINVAL; 139 } 140 #endif 141 142 #if IS_ENABLED(CONFIG_MFD_CPCAP) 143 extern int omap4_cpcap_init(void); 144 #else 145 static inline int omap4_cpcap_init(void) 146 { 147 return -EINVAL; 148 } 149 #endif 150 151 #ifdef CONFIG_PM 152 extern void omap_pm_setup_oscillator(u32 tstart, u32 tshut); 153 extern void omap_pm_get_oscillator(u32 *tstart, u32 *tshut); 154 extern void omap_pm_setup_sr_i2c_pcb_length(u32 mm); 155 #else 156 static inline void omap_pm_setup_oscillator(u32 tstart, u32 tshut) { } 157 static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { *tstart = *tshut = 0; } 158 static inline void omap_pm_setup_sr_i2c_pcb_length(u32 mm) { } 159 #endif 160 161 #ifdef CONFIG_SUSPEND 162 void omap_common_suspend_init(void *pm_suspend); 163 #else 164 static inline void omap_common_suspend_init(void *pm_suspend) 165 { 166 } 167 #endif /* CONFIG_SUSPEND */ 168 #endif 169