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 omap3_can_sleep(void);
22 extern int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state);
23 extern int omap3_idle_init(void);
24
25 #if defined(CONFIG_PM_OPP)
26 extern int omap3_opp_init(void);
27 extern int omap4_opp_init(void);
28 #else
omap3_opp_init(void)29 static inline int omap3_opp_init(void)
30 {
31 return -EINVAL;
32 }
omap4_opp_init(void)33 static inline int omap4_opp_init(void)
34 {
35 return -EINVAL;
36 }
37 #endif
38
39 struct cpuidle_params {
40 u8 valid;
41 u32 sleep_latency;
42 u32 wake_latency;
43 u32 threshold;
44 };
45
46 #if defined(CONFIG_PM) && defined(CONFIG_CPU_IDLE)
47 extern void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params);
48 #else
49 static
omap3_pm_init_cpuidle(struct cpuidle_params * cpuidle_board_params)50 inline void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params)
51 {
52 }
53 #endif
54
55 extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
56 extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
57
58 extern u32 wakeup_timer_seconds;
59 extern u32 wakeup_timer_milliseconds;
60 extern struct omap_dm_timer *gptimer_wakeup;
61
62 #ifdef CONFIG_PM_DEBUG
63 extern void omap2_pm_dump(int mode, int resume, unsigned int us);
64 extern void omap2_pm_wakeup_on_timer(u32 seconds, u32 milliseconds);
65 extern int omap2_pm_debug;
66 extern u32 enable_off_mode;
67 extern u32 sleep_while_idle;
68 #else
69 #define omap2_pm_dump(mode, resume, us) do {} while (0);
70 #define omap2_pm_wakeup_on_timer(seconds, milliseconds) do {} while (0);
71 #define omap2_pm_debug 0
72 #define enable_off_mode 0
73 #define sleep_while_idle 0
74 #endif
75
76 #if defined(CONFIG_CPU_IDLE)
77 extern void omap3_cpuidle_update_states(u32, u32);
78 #endif
79
80 #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
81 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
82 extern int pm_dbg_regset_save(int reg_set);
83 extern int pm_dbg_regset_init(int reg_set);
84 #else
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 int 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 save_secure_ram_context_sz;
100 extern unsigned int omap24xx_cpu_suspend_sz;
101 extern unsigned int omap34xx_cpu_suspend_sz;
102
103 #define PM_RTA_ERRATUM_i608 (1 << 0)
104 #define PM_SDRC_WAKEUP_ERRATUM_i583 (1 << 1)
105
106 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
107 extern u16 pm34xx_errata;
108 #define IS_PM34XX_ERRATUM(id) (pm34xx_errata & (id))
109 extern void enable_omap3630_toggle_l2_on_restore(void);
110 #else
111 #define IS_PM34XX_ERRATUM(id) 0
enable_omap3630_toggle_l2_on_restore(void)112 static inline void enable_omap3630_toggle_l2_on_restore(void) { }
113 #endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
114
115 #ifdef CONFIG_OMAP_SMARTREFLEX
116 extern int omap_devinit_smartreflex(void);
117 extern void omap_enable_smartreflex_on_init(void);
118 #else
omap_devinit_smartreflex(void)119 static inline int omap_devinit_smartreflex(void)
120 {
121 return -EINVAL;
122 }
123
omap_enable_smartreflex_on_init(void)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
omap3_twl_init(void)132 static inline int omap3_twl_init(void)
133 {
134 return -EINVAL;
135 }
omap4_twl_init(void)136 static inline int omap4_twl_init(void)
137 {
138 return -EINVAL;
139 }
140 #endif
141
142 #endif
143