2 * OMAP2/3/4 Power/Reset Management (PRM) bitfield definitions
4 * Copyright (C) 2007-2009, 2012 Texas Instruments, Inc.
5 * Copyright (C) 2010 Nokia Corporation
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
13 #ifndef __ARCH_ARM_MACH_OMAP2_PRM_H
14 #define __ARCH_ARM_MACH_OMAP2_PRM_H
16 #include "prcm-common.h"
18 # ifndef __ASSEMBLER__
19 extern void __iomem *prm_base;
20 extern u16 prm_features;
21 extern void omap2_set_globals_prm(void __iomem *prm);
22 int of_prcm_init(void);
26 * prm_features flag values
28 * PRM_HAS_IO_WAKEUP: has IO wakeup capability
29 * PRM_HAS_VOLTAGE: has voltage domains
31 #define PRM_HAS_IO_WAKEUP (1 << 0)
32 #define PRM_HAS_VOLTAGE (1 << 1)
35 * MAX_MODULE_SOFTRESET_WAIT: Maximum microseconds to wait for OMAP
38 #define MAX_MODULE_SOFTRESET_WAIT 10000
41 * MAX_MODULE_HARDRESET_WAIT: Maximum microseconds to wait for an OMAP
42 * submodule to exit hardreset
44 #define MAX_MODULE_HARDRESET_WAIT 10000
51 * 24XX: PM_PWSTST_CORE, PM_PWSTST_GFX, PM_PWSTST_MPU, PM_PWSTST_DSP
55 * 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX,
56 * PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU,
59 #define OMAP_INTRANSITION_MASK (1 << 20)
63 * 24XX: PM_PWSTST_GFX, PM_PWSTST_DSP
67 * 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX,
68 * PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU,
71 #define OMAP_POWERSTATEST_SHIFT 0
72 #define OMAP_POWERSTATEST_MASK (0x3 << 0)
75 * 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX,
76 * PM_PWSTCTRL_DSP, PM_PWSTST_MPU
78 * 2430: PM_PWSTCTRL_MDM shared bits
80 * 3430: PM_PWSTCTRL_IVA2, PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE,
81 * PM_PWSTCTRL_GFX, PM_PWSTCTRL_DSS, PM_PWSTCTRL_CAM, PM_PWSTCTRL_PER,
82 * PM_PWSTCTRL_NEON shared bits
84 #define OMAP_POWERSTATE_SHIFT 0
85 #define OMAP_POWERSTATE_MASK (0x3 << 0)
88 * Standardized OMAP reset source bits
90 * To the extent these happen to match the hardware register bit
91 * shifts, it's purely coincidental. Used by omap-wdt.c.
92 * OMAP_UNKNOWN_RST_SRC_ID_SHIFT is a special value, used whenever
93 * there are any bits remaining in the global PRM_RSTST register that
94 * haven't been identified, or when the PRM code for the current SoC
95 * doesn't know how to interpret the register.
97 #define OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT 0
98 #define OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT 1
99 #define OMAP_SECU_VIOL_RST_SRC_ID_SHIFT 2
100 #define OMAP_MPU_WD_RST_SRC_ID_SHIFT 3
101 #define OMAP_SECU_WD_RST_SRC_ID_SHIFT 4
102 #define OMAP_EXTWARM_RST_SRC_ID_SHIFT 5
103 #define OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT 6
104 #define OMAP_VDD_IVA_VM_RST_SRC_ID_SHIFT 7
105 #define OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT 8
106 #define OMAP_ICEPICK_RST_SRC_ID_SHIFT 9
107 #define OMAP_ICECRUSHER_RST_SRC_ID_SHIFT 10
108 #define OMAP_C2C_RST_SRC_ID_SHIFT 11
109 #define OMAP_UNKNOWN_RST_SRC_ID_SHIFT 12
111 #ifndef __ASSEMBLER__
114 * struct prm_reset_src_map - map register bitshifts to standard bitshifts
115 * @reg_shift: bitshift in the PRM reset source register
116 * @std_shift: bitshift equivalent in the standard reset source list
118 * The fields are signed because -1 is used as a terminator.
120 struct prm_reset_src_map {
126 * struct prm_ll_data - fn ptrs to per-SoC PRM function implementations
127 * @read_reset_sources: ptr to the SoC PRM-specific get_reset_source impl
128 * @was_any_context_lost_old: ptr to the SoC PRM context loss test fn
129 * @clear_context_loss_flags_old: ptr to the SoC PRM context loss flag clear fn
130 * @late_init: ptr to the late init function
131 * @assert_hardreset: ptr to the SoC PRM hardreset assert impl
132 * @deassert_hardreset: ptr to the SoC PRM hardreset deassert impl
134 * XXX @was_any_context_lost_old and @clear_context_loss_flags_old are
138 u32 (*read_reset_sources)(void);
139 bool (*was_any_context_lost_old)(u8 part, s16 inst, u16 idx);
140 void (*clear_context_loss_flags_old)(u8 part, s16 inst, u16 idx);
141 int (*late_init)(void);
142 int (*assert_hardreset)(u8 shift, u8 part, s16 prm_mod, u16 offset);
143 int (*deassert_hardreset)(u8 shift, u8 st_shift, u8 part, s16 prm_mod,
144 u16 offset, u16 st_offset);
145 int (*is_hardreset_asserted)(u8 shift, u8 part, s16 prm_mod,
147 void (*reset_system)(void);
150 extern int prm_register(struct prm_ll_data *pld);
151 extern int prm_unregister(struct prm_ll_data *pld);
153 int omap_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod, u16 offset);
154 int omap_prm_deassert_hardreset(u8 shift, u8 st_shift, u8 part, s16 prm_mod,
155 u16 offset, u16 st_offset);
156 int omap_prm_is_hardreset_asserted(u8 shift, u8 part, s16 prm_mod, u16 offset);
157 extern u32 prm_read_reset_sources(void);
158 extern bool prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx);
159 extern void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx);
160 void omap_prm_reset_system(void);
162 void omap_prm_reconfigure_io_chain(void);