1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
* OMAP2/3/4 Power/Reset Management (PRM) bitfield definitions
*
* Copyright (C) 2007-2009, 2012 Texas Instruments, Inc.
* Copyright (C) 2010 Nokia Corporation
*
* Paul Walmsley
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ARCH_ARM_MACH_OMAP2_PRM_H
#define __ARCH_ARM_MACH_OMAP2_PRM_H
#include "prcm-common.h"
# ifndef __ASSEMBLER__
extern void __iomem *prm_base;
extern u16 prm_features;
extern void omap2_set_globals_prm(void __iomem *prm);
int of_prcm_init(void);
# endif
/*
* prm_features flag values
*
* PRM_HAS_IO_WAKEUP: has IO wakeup capability
* PRM_HAS_VOLTAGE: has voltage domains
*/
#define PRM_HAS_IO_WAKEUP (1 << 0)
#define PRM_HAS_VOLTAGE (1 << 1)
/*
* MAX_MODULE_SOFTRESET_WAIT: Maximum microseconds to wait for OMAP
* module to softreset
*/
#define MAX_MODULE_SOFTRESET_WAIT 10000
/*
* MAX_MODULE_HARDRESET_WAIT: Maximum microseconds to wait for an OMAP
* submodule to exit hardreset
*/
#define MAX_MODULE_HARDRESET_WAIT 10000
/*
* Register bitfields
*/
/*
* 24XX: PM_PWSTST_CORE, PM_PWSTST_GFX, PM_PWSTST_MPU, PM_PWSTST_DSP
*
* 2430: PM_PWSTST_MDM
*
* 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX,
* PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU,
* PM_PWSTST_NEON
*/
#define OMAP_INTRANSITION_MASK (1 << 20)
/*
* 24XX: PM_PWSTST_GFX, PM_PWSTST_DSP
*
* 2430: PM_PWSTST_MDM
*
* 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX,
* PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU,
* PM_PWSTST_NEON
*/
#define OMAP_POWERSTATEST_SHIFT 0
#define OMAP_POWERSTATEST_MASK (0x3 << 0)
/*
* 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX,
* PM_PWSTCTRL_DSP, PM_PWSTST_MPU
*
* 2430: PM_PWSTCTRL_MDM shared bits
*
* 3430: PM_PWSTCTRL_IVA2, PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE,
* PM_PWSTCTRL_GFX, PM_PWSTCTRL_DSS, PM_PWSTCTRL_CAM, PM_PWSTCTRL_PER,
* PM_PWSTCTRL_NEON shared bits
*/
#define OMAP_POWERSTATE_SHIFT 0
#define OMAP_POWERSTATE_MASK (0x3 << 0)
/*
* Standardized OMAP reset source bits
*
* To the extent these happen to match the hardware register bit
* shifts, it's purely coincidental. Used by omap-wdt.c.
* OMAP_UNKNOWN_RST_SRC_ID_SHIFT is a special value, used whenever
* there are any bits remaining in the global PRM_RSTST register that
* haven't been identified, or when the PRM code for the current SoC
* doesn't know how to interpret the register.
*/
#define OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT 0
#define OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT 1
#define OMAP_SECU_VIOL_RST_SRC_ID_SHIFT 2
#define OMAP_MPU_WD_RST_SRC_ID_SHIFT 3
#define OMAP_SECU_WD_RST_SRC_ID_SHIFT 4
#define OMAP_EXTWARM_RST_SRC_ID_SHIFT 5
#define OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT 6
#define OMAP_VDD_IVA_VM_RST_SRC_ID_SHIFT 7
#define OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT 8
#define OMAP_ICEPICK_RST_SRC_ID_SHIFT 9
#define OMAP_ICECRUSHER_RST_SRC_ID_SHIFT 10
#define OMAP_C2C_RST_SRC_ID_SHIFT 11
#define OMAP_UNKNOWN_RST_SRC_ID_SHIFT 12
#ifndef __ASSEMBLER__
/**
* struct prm_reset_src_map - map register bitshifts to standard bitshifts
* @reg_shift: bitshift in the PRM reset source register
* @std_shift: bitshift equivalent in the standard reset source list
*
* The fields are signed because -1 is used as a terminator.
*/
struct prm_reset_src_map {
s8 reg_shift;
s8 std_shift;
};
/**
* struct prm_ll_data - fn ptrs to per-SoC PRM function implementations
* @read_reset_sources: ptr to the SoC PRM-specific get_reset_source impl
* @was_any_context_lost_old: ptr to the SoC PRM context loss test fn
* @clear_context_loss_flags_old: ptr to the SoC PRM context loss flag clear fn
* @late_init: ptr to the late init function
* @assert_hardreset: ptr to the SoC PRM hardreset assert impl
*
* XXX @was_any_context_lost_old and @clear_context_loss_flags_old are
* deprecated.
*/
struct prm_ll_data {
u32 (*read_reset_sources)(void);
bool (*was_any_context_lost_old)(u8 part, s16 inst, u16 idx);
void (*clear_context_loss_flags_old)(u8 part, s16 inst, u16 idx);
int (*late_init)(void);
int (*assert_hardreset)(u8 shift, u8 part, s16 prm_mod, u16 offset);
};
extern int prm_register(struct prm_ll_data *pld);
extern int prm_unregister(struct prm_ll_data *pld);
int omap_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod, u16 offset);
extern u32 prm_read_reset_sources(void);
extern bool prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx);
extern void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx);
#endif
#endif
|
