arch/arm/mach-omap2/pm.h

   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(bool rcuidle);
  33 extern int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused);
  34
  35 extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
  36 extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
  37
  38 extern u32 enable_off_mode;
  39
  40 #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
  41 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
  42 #else
  43 #define pm_dbg_update_time(pwrdm, prev) do {} while (0);
  44 #endif /* CONFIG_PM_DEBUG */
  45
  46 /* 24xx */
  47 extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl,
  48                                         void __iomem *sdrc_power);
  49 extern unsigned int omap24xx_cpu_suspend_sz;
  50
  51 /* 3xxx */
  52 extern void omap34xx_cpu_suspend(int save_state);
  53
  54 /* omap3_do_wfi function pointer and size, for copy to SRAM */
  55 extern void omap3_do_wfi(void);
  56 extern unsigned int omap3_do_wfi_sz;
  57 /* ... and its pointer from SRAM after copy */
  58 extern void (*omap3_do_wfi_sram)(void);
  59
  60 extern struct am33xx_pm_sram_addr am33xx_pm_sram;
  61 extern struct am33xx_pm_sram_addr am43xx_pm_sram;
  62
  63 extern void omap3_save_scratchpad_contents(void);
  64
  65 #define PM_RTA_ERRATUM_i608             (1 << 0)
  66 #define PM_SDRC_WAKEUP_ERRATUM_i583     (1 << 1)
  67 #define PM_PER_MEMORIES_ERRATUM_i582    (1 << 2)
  68
  69 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
  70 extern u16 pm34xx_errata;
  71 #define IS_PM34XX_ERRATUM(id)           (pm34xx_errata & (id))
  72 extern void enable_omap3630_toggle_l2_on_restore(void);
  73 #else
  74 #define IS_PM34XX_ERRATUM(id)           0
  75 static inline void enable_omap3630_toggle_l2_on_restore(void) { }
  76 #endif          /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
  77
  78 #define PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD      (1 << 0)
  79 #define PM_OMAP4_CPU_OSWR_DISABLE               (1 << 1)
  80
  81 #if defined(CONFIG_PM) && (defined(CONFIG_ARCH_OMAP4) ||\
  82            defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX))
  83 extern u16 pm44xx_errata;
  84 #define IS_PM44XX_ERRATUM(id)           (pm44xx_errata & (id))
  85 #else
  86 #define IS_PM44XX_ERRATUM(id)           0
  87 #endif
  88
  89 #define OMAP4_VP_CONFIG_ERROROFFSET     0x00
  90 #define OMAP4_VP_VSTEPMIN_VSTEPMIN      0x01
  91 #define OMAP4_VP_VSTEPMAX_VSTEPMAX      0x04
  92 #define OMAP4_VP_VLIMITTO_TIMEOUT_US    200
  93
  94 #ifdef CONFIG_POWER_AVS_OMAP
  95 extern int omap_devinit_smartreflex(void);
  96 #else
  97 static inline int omap_devinit_smartreflex(void)
  98 {
  99         return -EINVAL;
 100 }
 101 #endif
 102
 103 #ifdef CONFIG_TWL4030_CORE
 104 extern int omap3_twl_init(void);
 105 extern int omap4_twl_init(void);
 106 #else
 107 static inline int omap3_twl_init(void)
 108 {
 109         return -EINVAL;
 110 }
 111 static inline int omap4_twl_init(void)
 112 {
 113         return -EINVAL;
 114 }
 115 #endif
 116
 117 #if IS_ENABLED(CONFIG_MFD_CPCAP)
 118 extern int omap4_cpcap_init(void);
 119 #else
 120 static inline int omap4_cpcap_init(void)
 121 {
 122         return -EINVAL;
 123 }
 124 #endif
 125
 126 #ifdef CONFIG_PM
 127 extern void omap_pm_get_oscillator(u32 *tstart, u32 *tshut);
 128 #else
 129 static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { *tstart = *tshut = 0; }
 130 #endif
 131
 132 #ifdef CONFIG_SUSPEND
 133 void omap_common_suspend_init(void *pm_suspend);
 134 #else
 135 static inline void omap_common_suspend_init(void *pm_suspend)
 136 {
 137 }
 138 #endif /* CONFIG_SUSPEND */
 139 #endif