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
19extern int __init omap3_idle_init(void);
20extern int __init omap4_idle_init(void);
21#else
22static inline int omap3_idle_init(void)
23{
24	return 0;
25}
26
27static inline int omap4_idle_init(void)
28{
29	return 0;
30}
31#endif
32
33extern void *omap3_secure_ram_storage;
34extern void omap3_pm_off_mode_enable(int);
35extern void omap_sram_idle(void);
36extern int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused);
37
38#if defined(CONFIG_PM_OPP)
39extern int omap3_opp_init(void);
40extern int omap4_opp_init(void);
41#else
42static inline int omap3_opp_init(void)
43{
44	return -EINVAL;
45}
46static inline int omap4_opp_init(void)
47{
48	return -EINVAL;
49}
50#endif
51
52extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
53extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
54
55#ifdef CONFIG_PM_DEBUG
56extern u32 enable_off_mode;
57#else
58#define enable_off_mode 0
59#endif
60
61#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
62extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
63#else
64#define pm_dbg_update_time(pwrdm, prev) do {} while (0);
65#endif /* CONFIG_PM_DEBUG */
66
67/* 24xx */
68extern void omap24xx_idle_loop_suspend(void);
69extern unsigned int omap24xx_idle_loop_suspend_sz;
70
71extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl,
72					void __iomem *sdrc_power);
73extern unsigned int omap24xx_cpu_suspend_sz;
74
75/* 3xxx */
76extern void omap34xx_cpu_suspend(int save_state);
77
78/* omap3_do_wfi function pointer and size, for copy to SRAM */
79extern void omap3_do_wfi(void);
80extern unsigned int omap3_do_wfi_sz;
81/* ... and its pointer from SRAM after copy */
82extern void (*omap3_do_wfi_sram)(void);
83
84/* save_secure_ram_context function pointer and size, for copy to SRAM */
85extern int save_secure_ram_context(u32 *addr);
86extern unsigned int save_secure_ram_context_sz;
87
88extern void omap3_save_scratchpad_contents(void);
89
90#define PM_RTA_ERRATUM_i608		(1 << 0)
91#define PM_SDRC_WAKEUP_ERRATUM_i583	(1 << 1)
92#define PM_PER_MEMORIES_ERRATUM_i582	(1 << 2)
93
94#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
95extern u16 pm34xx_errata;
96#define IS_PM34XX_ERRATUM(id)		(pm34xx_errata & (id))
97extern void enable_omap3630_toggle_l2_on_restore(void);
98#else
99#define IS_PM34XX_ERRATUM(id)		0
100static inline void enable_omap3630_toggle_l2_on_restore(void) { }
101#endif		/* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
102
103#define PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD	(1 << 0)
104#define PM_OMAP4_CPU_OSWR_DISABLE		(1 << 1)
105
106#if defined(CONFIG_PM) && (defined(CONFIG_ARCH_OMAP4) ||\
107	   defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX))
108extern u16 pm44xx_errata;
109#define IS_PM44XX_ERRATUM(id)		(pm44xx_errata & (id))
110#else
111#define IS_PM44XX_ERRATUM(id)		0
112#endif
113
114#ifdef CONFIG_POWER_AVS_OMAP
115extern int omap_devinit_smartreflex(void);
116extern void omap_enable_smartreflex_on_init(void);
117#else
118static inline int omap_devinit_smartreflex(void)
119{
120	return -EINVAL;
121}
122
123static inline void omap_enable_smartreflex_on_init(void) {}
124#endif
125
126#ifdef CONFIG_TWL4030_CORE
127extern int omap3_twl_init(void);
128extern int omap4_twl_init(void);
129extern int omap3_twl_set_sr_bit(bool enable);
130#else
131static inline int omap3_twl_init(void)
132{
133	return -EINVAL;
134}
135static inline int omap4_twl_init(void)
136{
137	return -EINVAL;
138}
139#endif
140
141#ifdef CONFIG_PM
142extern void omap_pm_setup_oscillator(u32 tstart, u32 tshut);
143extern void omap_pm_get_oscillator(u32 *tstart, u32 *tshut);
144extern void omap_pm_setup_sr_i2c_pcb_length(u32 mm);
145#else
146static inline void omap_pm_setup_oscillator(u32 tstart, u32 tshut) { }
147static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { *tstart = *tshut = 0; }
148static inline void omap_pm_setup_sr_i2c_pcb_length(u32 mm) { }
149#endif
150
151#ifdef CONFIG_SUSPEND
152void omap_common_suspend_init(void *pm_suspend);
153#else
154static inline void omap_common_suspend_init(void *pm_suspend)
155{
156}
157#endif /* CONFIG_SUSPEND */
158#endif
159