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 omap_prcm_init(void);
23 int omap2_prm_base_init(void);
27 * prm_features flag values
29 * PRM_HAS_IO_WAKEUP: has IO wakeup capability
30 * PRM_HAS_VOLTAGE: has voltage domains
32 #define PRM_HAS_IO_WAKEUP (1 << 0)
33 #define PRM_HAS_VOLTAGE (1 << 1)
36 * MAX_MODULE_SOFTRESET_WAIT: Maximum microseconds to wait for OMAP
39 #define MAX_MODULE_SOFTRESET_WAIT 10000
42 * MAX_MODULE_HARDRESET_WAIT: Maximum microseconds to wait for an OMAP
43 * submodule to exit hardreset
45 #define MAX_MODULE_HARDRESET_WAIT 10000
52 * 24XX: PM_PWSTST_CORE, PM_PWSTST_GFX, PM_PWSTST_MPU, PM_PWSTST_DSP
56 * 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX,
57 * PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU,
60 #define OMAP_INTRANSITION_MASK (1 << 20)
64 * 24XX: PM_PWSTST_GFX, PM_PWSTST_DSP
68 * 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX,
69 * PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU,
72 #define OMAP_POWERSTATEST_SHIFT 0
73 #define OMAP_POWERSTATEST_MASK (0x3 << 0)
76 * 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX,
77 * PM_PWSTCTRL_DSP, PM_PWSTST_MPU
79 * 2430: PM_PWSTCTRL_MDM shared bits
81 * 3430: PM_PWSTCTRL_IVA2, PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE,
82 * PM_PWSTCTRL_GFX, PM_PWSTCTRL_DSS, PM_PWSTCTRL_CAM, PM_PWSTCTRL_PER,
83 * PM_PWSTCTRL_NEON shared bits
85 #define OMAP_POWERSTATE_SHIFT 0
86 #define OMAP_POWERSTATE_MASK (0x3 << 0)
89 * Standardized OMAP reset source bits
91 * To the extent these happen to match the hardware register bit
92 * shifts, it's purely coincidental. Used by omap-wdt.c.
93 * OMAP_UNKNOWN_RST_SRC_ID_SHIFT is a special value, used whenever
94 * there are any bits remaining in the global PRM_RSTST register that
95 * haven't been identified, or when the PRM code for the current SoC
96 * doesn't know how to interpret the register.
98 #define OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT 0
99 #define OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT 1
100 #define OMAP_SECU_VIOL_RST_SRC_ID_SHIFT 2
101 #define OMAP_MPU_WD_RST_SRC_ID_SHIFT 3
102 #define OMAP_SECU_WD_RST_SRC_ID_SHIFT 4
103 #define OMAP_EXTWARM_RST_SRC_ID_SHIFT 5
104 #define OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT 6
105 #define OMAP_VDD_IVA_VM_RST_SRC_ID_SHIFT 7
106 #define OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT 8
107 #define OMAP_ICEPICK_RST_SRC_ID_SHIFT 9
108 #define OMAP_ICECRUSHER_RST_SRC_ID_SHIFT 10
109 #define OMAP_C2C_RST_SRC_ID_SHIFT 11
110 #define OMAP_UNKNOWN_RST_SRC_ID_SHIFT 12
112 #ifndef __ASSEMBLER__
115 * struct prm_reset_src_map - map register bitshifts to standard bitshifts
116 * @reg_shift: bitshift in the PRM reset source register
117 * @std_shift: bitshift equivalent in the standard reset source list
119 * The fields are signed because -1 is used as a terminator.
121 struct prm_reset_src_map {
127 * struct prm_ll_data - fn ptrs to per-SoC PRM function implementations
128 * @read_reset_sources: ptr to the SoC PRM-specific get_reset_source impl
129 * @was_any_context_lost_old: ptr to the SoC PRM context loss test fn
130 * @clear_context_loss_flags_old: ptr to the SoC PRM context loss flag clear fn
131 * @late_init: ptr to the late init function
132 * @assert_hardreset: ptr to the SoC PRM hardreset assert impl
133 * @deassert_hardreset: ptr to the SoC PRM hardreset deassert impl
135 * XXX @was_any_context_lost_old and @clear_context_loss_flags_old are
139 u32 (*read_reset_sources)(void);
140 bool (*was_any_context_lost_old)(u8 part, s16 inst, u16 idx);
141 void (*clear_context_loss_flags_old)(u8 part, s16 inst, u16 idx);
142 int (*late_init)(void);
143 int (*assert_hardreset)(u8 shift, u8 part, s16 prm_mod, u16 offset);
144 int (*deassert_hardreset)(u8 shift, u8 st_shift, u8 part, s16 prm_mod,
145 u16 offset, u16 st_offset);
146 int (*is_hardreset_asserted)(u8 shift, u8 part, s16 prm_mod,
148 void (*reset_system)(void);
149 int (*clear_mod_irqs)(s16 module, u8 regs, u32 wkst_mask);
150 u32 (*vp_check_txdone)(u8 vp_id);
151 void (*vp_clear_txdone)(u8 vp_id);
154 extern int prm_register(struct prm_ll_data *pld);
155 extern int prm_unregister(struct prm_ll_data *pld);
157 int omap_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod, u16 offset);
158 int omap_prm_deassert_hardreset(u8 shift, u8 st_shift, u8 part, s16 prm_mod,
159 u16 offset, u16 st_offset);
160 int omap_prm_is_hardreset_asserted(u8 shift, u8 part, s16 prm_mod, u16 offset);
161 extern u32 prm_read_reset_sources(void);
162 extern bool prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx);
163 extern void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx);
164 void omap_prm_reset_system(void);
166 void omap_prm_reconfigure_io_chain(void);
167 int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
170 * Voltage Processor (VP) identifiers
172 #define OMAP3_VP_VDD_MPU_ID 0
173 #define OMAP3_VP_VDD_CORE_ID 1
174 #define OMAP4_VP_VDD_CORE_ID 0
175 #define OMAP4_VP_VDD_IVA_ID 1
176 #define OMAP4_VP_VDD_MPU_ID 2
178 u32 omap_prm_vp_check_txdone(u8 vp_id);
179 void omap_prm_vp_clear_txdone(u8 vp_id);