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 void omap2_set_globals_prm(void __iomem *prm);
21 int of_prcm_init(void);
26 * MAX_MODULE_SOFTRESET_WAIT: Maximum microseconds to wait for OMAP
29 #define MAX_MODULE_SOFTRESET_WAIT 10000
32 * MAX_MODULE_HARDRESET_WAIT: Maximum microseconds to wait for an OMAP
33 * submodule to exit hardreset
35 #define MAX_MODULE_HARDRESET_WAIT 10000
42 * 24XX: PM_PWSTST_CORE, PM_PWSTST_GFX, PM_PWSTST_MPU, PM_PWSTST_DSP
46 * 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX,
47 * PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU,
50 #define OMAP_INTRANSITION_MASK (1 << 20)
54 * 24XX: PM_PWSTST_GFX, PM_PWSTST_DSP
58 * 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX,
59 * PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU,
62 #define OMAP_POWERSTATEST_SHIFT 0
63 #define OMAP_POWERSTATEST_MASK (0x3 << 0)
66 * 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX,
67 * PM_PWSTCTRL_DSP, PM_PWSTST_MPU
69 * 2430: PM_PWSTCTRL_MDM shared bits
71 * 3430: PM_PWSTCTRL_IVA2, PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE,
72 * PM_PWSTCTRL_GFX, PM_PWSTCTRL_DSS, PM_PWSTCTRL_CAM, PM_PWSTCTRL_PER,
73 * PM_PWSTCTRL_NEON shared bits
75 #define OMAP_POWERSTATE_SHIFT 0
76 #define OMAP_POWERSTATE_MASK (0x3 << 0)
79 * Standardized OMAP reset source bits
81 * To the extent these happen to match the hardware register bit
82 * shifts, it's purely coincidental. Used by omap-wdt.c.
83 * OMAP_UNKNOWN_RST_SRC_ID_SHIFT is a special value, used whenever
84 * there are any bits remaining in the global PRM_RSTST register that
85 * haven't been identified, or when the PRM code for the current SoC
86 * doesn't know how to interpret the register.
88 #define OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT 0
89 #define OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT 1
90 #define OMAP_SECU_VIOL_RST_SRC_ID_SHIFT 2
91 #define OMAP_MPU_WD_RST_SRC_ID_SHIFT 3
92 #define OMAP_SECU_WD_RST_SRC_ID_SHIFT 4
93 #define OMAP_EXTWARM_RST_SRC_ID_SHIFT 5
94 #define OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT 6
95 #define OMAP_VDD_IVA_VM_RST_SRC_ID_SHIFT 7
96 #define OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT 8
97 #define OMAP_ICEPICK_RST_SRC_ID_SHIFT 9
98 #define OMAP_ICECRUSHER_RST_SRC_ID_SHIFT 10
99 #define OMAP_C2C_RST_SRC_ID_SHIFT 11
100 #define OMAP_UNKNOWN_RST_SRC_ID_SHIFT 12
102 #ifndef __ASSEMBLER__
105 * struct prm_reset_src_map - map register bitshifts to standard bitshifts
106 * @reg_shift: bitshift in the PRM reset source register
107 * @std_shift: bitshift equivalent in the standard reset source list
109 * The fields are signed because -1 is used as a terminator.
111 struct prm_reset_src_map {
117 * struct prm_ll_data - fn ptrs to per-SoC PRM function implementations
118 * @read_reset_sources: ptr to the SoC PRM-specific get_reset_source impl
119 * @was_any_context_lost_old: ptr to the SoC PRM context loss test fn
120 * @clear_context_loss_flags_old: ptr to the SoC PRM context loss flag clear fn
122 * XXX @was_any_context_lost_old and @clear_context_loss_flags_old are
126 u32 (*read_reset_sources)(void);
127 bool (*was_any_context_lost_old)(u8 part, s16 inst, u16 idx);
128 void (*clear_context_loss_flags_old)(u8 part, s16 inst, u16 idx);
131 extern int prm_register(struct prm_ll_data *pld);
132 extern int prm_unregister(struct prm_ll_data *pld);
134 extern u32 prm_read_reset_sources(void);
135 extern bool prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx);
136 extern void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx);