arch/arm/mach-omap2/pm.h

   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 extern int (*omap_pm_suspend)(void);
  38
  39 #if defined(CONFIG_PM_OPP)
  40 extern int omap3_opp_init(void);
  41 extern int omap4_opp_init(void);
  42 #else
  43 static inline int omap3_opp_init(void)
  44 {
  45         return -EINVAL;
  46 }
  47 static inline int omap4_opp_init(void)
  48 {
  49         return -EINVAL;
  50 }
  51 #endif
  52
  53 extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
  54 extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
  55
  56 #ifdef CONFIG_PM_DEBUG
  57 extern u32 enable_off_mode;
  58 #else
  59 #define enable_off_mode 0
  60 #endif
  61
  62 #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
  63 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
  64 #else
  65 #define pm_dbg_update_time(pwrdm, prev) do {} while (0);
  66 #endif /* CONFIG_PM_DEBUG */
  67
  68 /* 24xx */
  69 extern void omap24xx_idle_loop_suspend(void);
  70 extern unsigned int omap24xx_idle_loop_suspend_sz;
  71
  72 extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl,
  73                                         void __iomem *sdrc_power);
  74 extern unsigned int omap24xx_cpu_suspend_sz;
  75
  76 /* 3xxx */
  77 extern void omap34xx_cpu_suspend(int save_state);
  78
  79 /* omap3_do_wfi function pointer and size, for copy to SRAM */
  80 extern void omap3_do_wfi(void);
  81 extern unsigned int omap3_do_wfi_sz;
  82 /* ... and its pointer from SRAM after copy */
  83 extern void (*omap3_do_wfi_sram)(void);
  84
  85 /* save_secure_ram_context function pointer and size, for copy to SRAM */
  86 extern int save_secure_ram_context(u32 *addr);
  87 extern unsigned int save_secure_ram_context_sz;
  88
  89 extern void omap3_save_scratchpad_contents(void);
  90
  91 #define PM_RTA_ERRATUM_i608             (1 << 0)
  92 #define PM_SDRC_WAKEUP_ERRATUM_i583     (1 << 1)
  93 #define PM_PER_MEMORIES_ERRATUM_i582    (1 << 2)
  94
  95 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
  96 extern u16 pm34xx_errata;
  97 #define IS_PM34XX_ERRATUM(id)           (pm34xx_errata & (id))
  98 extern void enable_omap3630_toggle_l2_on_restore(void);
  99 #else
 100 #define IS_PM34XX_ERRATUM(id)           0
 101 static inline void enable_omap3630_toggle_l2_on_restore(void) { }
 102 #endif          /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
 103
 104 #define PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD      (1 << 0)
 105
 106 #if defined(CONFIG_ARCH_OMAP4)
 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 #endif