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