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 <plat/powerdomain.h>
  15
  16 extern u32 enable_off_mode;
  17 extern u32 sleep_while_idle;
  18 extern u32 voltage_off_while_idle;
  19
  20 extern void *omap3_secure_ram_storage;
  21 extern void omap3_pm_off_mode_enable(int);
  22 extern void omap_sram_idle(void);
  23 extern int omap3_can_sleep(void);
  24 extern int set_pwrdm_state(struct powerdomain *pwrdm, u32 state);
  25 extern int omap3_idle_init(void);
  26
  27 struct prm_setup_vc {
  28         u16 clksetup;
  29         u16 voltsetup_time1;
  30         u16 voltsetup_time2;
  31         u16 voltoffset;
  32         u16 voltsetup2;
  33 /* PRM_VC_CMD_VAL_0 specific bits */
  34         u16 vdd0_on;
  35         u16 vdd0_onlp;
  36         u16 vdd0_ret;
  37         u16 vdd0_off;
  38 /* PRM_VC_CMD_VAL_1 specific bits */
  39         u16 vdd1_on;
  40         u16 vdd1_onlp;
  41         u16 vdd1_ret;
  42         u16 vdd1_off;
  43 };
  44
  45 struct cpuidle_params {
  46         u32 sleep_latency;
  47         u32 wake_latency;
  48         u32 threshold;
  49 };
  50
  51 extern void omap3_pm_init_vc(struct prm_setup_vc *setup_vc);
  52 #ifdef CONFIG_CPU_IDLE
  53 extern void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params);
  54 extern void omap3_cpuidle_update_states(void);
  55 #else
  56 static inline void omap3_pm_init_cpuidle(
  57                         struct cpuidle_params *cpuidle_board_params)
  58 {
  59 }
  60 #endif
  61
  62 extern int resource_set_opp_level(int res, u32 target_level, int flags);
  63 extern int resource_access_opp_lock(int res, int delta);
  64 #define resource_lock_opp(res) resource_access_opp_lock(res, 1)
  65 #define resource_unlock_opp(res) resource_access_opp_lock(res, -1)
  66 #define resource_get_opp_lock(res) resource_access_opp_lock(res, 0)
  67
  68 #define OPP_IGNORE_LOCK 0x1
  69
  70 extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
  71 extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
  72
  73 extern u32 wakeup_timer_seconds;
  74 extern struct omap_dm_timer *gptimer_wakeup;
  75
  76 #ifdef CONFIG_PM_DEBUG
  77 extern void omap2_pm_dump(int mode, int resume, unsigned int us);
  78 extern int omap2_pm_debug;
  79 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
  80 extern int pm_dbg_regset_save(int reg_set);
  81 extern int pm_dbg_regset_init(int reg_set);
  82 #else
  83 #define omap2_pm_dump(mode, resume, us)         do {} while (0);
  84 #define omap2_pm_debug                          0
  85 #define pm_dbg_update_time(pwrdm, prev) do {} while (0);
  86 #define pm_dbg_regset_save(reg_set) do {} while (0);
  87 #define pm_dbg_regset_init(reg_set) do {} while (0);
  88 #endif /* CONFIG_PM_DEBUG */
  89
  90 extern void omap24xx_idle_loop_suspend(void);
  91
  92 extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl,
  93                                         void __iomem *sdrc_power);
  94 extern void omap34xx_cpu_suspend(u32 *addr, int save_state);
  95 extern void save_secure_ram_context(u32 *addr);
  96 extern void omap3_save_scratchpad_contents(void);
  97
  98 extern unsigned int omap24xx_idle_loop_suspend_sz;
  99 extern unsigned int omap34xx_suspend_sz;
 100 extern unsigned int save_secure_ram_context_sz;
 101 extern unsigned int omap24xx_cpu_suspend_sz;
 102 extern unsigned int omap34xx_cpu_suspend_sz;
 103
 104 #endif