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
omap3_idle_init(void)22 static inline int omap3_idle_init(void)
23 {
24 return 0;
25 }
26
omap4_idle_init(void)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
omap3_opp_init(void)43 static inline int omap3_opp_init(void)
44 {
45 return -EINVAL;
46 }
omap4_opp_init(void)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
enable_omap3630_toggle_l2_on_restore(void)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
omap_devinit_smartreflex(void)117 static inline int omap_devinit_smartreflex(void)
118 {
119 return -EINVAL;
120 }
121
omap_enable_smartreflex_on_init(void)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
omap3_twl_init(void)130 static inline int omap3_twl_init(void)
131 {
132 return -EINVAL;
133 }
omap4_twl_init(void)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
omap_pm_setup_oscillator(u32 tstart,u32 tshut)145 static inline void omap_pm_setup_oscillator(u32 tstart, u32 tshut) { }
omap_pm_get_oscillator(u32 * tstart,u32 * tshut)146 static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { *tstart = *tshut = 0; }
omap_pm_setup_sr_i2c_pcb_length(u32 mm)147 static inline void omap_pm_setup_sr_i2c_pcb_length(u32 mm) { }
148 #endif
149
150 #endif
151