1 /* 2 * OMAP2/3/4 Power/Reset Management (PRM) bitfield definitions 3 * 4 * Copyright (C) 2007-2009, 2012 Texas Instruments, Inc. 5 * Copyright (C) 2010 Nokia Corporation 6 * 7 * Paul Walmsley 8 * 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. 12 */ 13 #ifndef __ARCH_ARM_MACH_OMAP2_PRM_H 14 #define __ARCH_ARM_MACH_OMAP2_PRM_H 15 16 #include "prcm-common.h" 17 18 # ifndef __ASSEMBLER__ 19 extern struct omap_domain_base 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); 24 int omap2_prcm_base_init(void); 25 # endif 26 27 /* 28 * prm_features flag values 29 * 30 * PRM_HAS_IO_WAKEUP: has IO wakeup capability 31 * PRM_HAS_VOLTAGE: has voltage domains 32 */ 33 #define PRM_HAS_IO_WAKEUP BIT(0) 34 #define PRM_HAS_VOLTAGE BIT(1) 35 36 /* 37 * MAX_MODULE_SOFTRESET_WAIT: Maximum microseconds to wait for OMAP 38 * module to softreset 39 */ 40 #define MAX_MODULE_SOFTRESET_WAIT 10000 41 42 /* 43 * MAX_MODULE_HARDRESET_WAIT: Maximum microseconds to wait for an OMAP 44 * submodule to exit hardreset 45 */ 46 #define MAX_MODULE_HARDRESET_WAIT 10000 47 48 /* 49 * Register bitfields 50 */ 51 52 /* 53 * 24XX: PM_PWSTST_CORE, PM_PWSTST_GFX, PM_PWSTST_MPU, PM_PWSTST_DSP 54 * 55 * 2430: PM_PWSTST_MDM 56 * 57 * 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX, 58 * PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU, 59 * PM_PWSTST_NEON 60 */ 61 #define OMAP_INTRANSITION_MASK (1 << 20) 62 63 64 /* 65 * 24XX: PM_PWSTST_GFX, PM_PWSTST_DSP 66 * 67 * 2430: PM_PWSTST_MDM 68 * 69 * 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX, 70 * PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU, 71 * PM_PWSTST_NEON 72 */ 73 #define OMAP_POWERSTATEST_SHIFT 0 74 #define OMAP_POWERSTATEST_MASK (0x3 << 0) 75 76 /* 77 * 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX, 78 * PM_PWSTCTRL_DSP, PM_PWSTST_MPU 79 * 80 * 2430: PM_PWSTCTRL_MDM shared bits 81 * 82 * 3430: PM_PWSTCTRL_IVA2, PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, 83 * PM_PWSTCTRL_GFX, PM_PWSTCTRL_DSS, PM_PWSTCTRL_CAM, PM_PWSTCTRL_PER, 84 * PM_PWSTCTRL_NEON shared bits 85 */ 86 #define OMAP_POWERSTATE_SHIFT 0 87 #define OMAP_POWERSTATE_MASK (0x3 << 0) 88 89 /* 90 * Standardized OMAP reset source bits 91 * 92 * To the extent these happen to match the hardware register bit 93 * shifts, it's purely coincidental. Used by omap-wdt.c. 94 * OMAP_UNKNOWN_RST_SRC_ID_SHIFT is a special value, used whenever 95 * there are any bits remaining in the global PRM_RSTST register that 96 * haven't been identified, or when the PRM code for the current SoC 97 * doesn't know how to interpret the register. 98 */ 99 #define OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT 0 100 #define OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT 1 101 #define OMAP_SECU_VIOL_RST_SRC_ID_SHIFT 2 102 #define OMAP_MPU_WD_RST_SRC_ID_SHIFT 3 103 #define OMAP_SECU_WD_RST_SRC_ID_SHIFT 4 104 #define OMAP_EXTWARM_RST_SRC_ID_SHIFT 5 105 #define OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT 6 106 #define OMAP_VDD_IVA_VM_RST_SRC_ID_SHIFT 7 107 #define OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT 8 108 #define OMAP_ICEPICK_RST_SRC_ID_SHIFT 9 109 #define OMAP_ICECRUSHER_RST_SRC_ID_SHIFT 10 110 #define OMAP_C2C_RST_SRC_ID_SHIFT 11 111 #define OMAP_UNKNOWN_RST_SRC_ID_SHIFT 12 112 113 #ifndef __ASSEMBLER__ 114 115 /** 116 * struct prm_reset_src_map - map register bitshifts to standard bitshifts 117 * @reg_shift: bitshift in the PRM reset source register 118 * @std_shift: bitshift equivalent in the standard reset source list 119 * 120 * The fields are signed because -1 is used as a terminator. 121 */ 122 struct prm_reset_src_map { 123 s8 reg_shift; 124 s8 std_shift; 125 }; 126 127 /** 128 * struct prm_ll_data - fn ptrs to per-SoC PRM function implementations 129 * @read_reset_sources: ptr to the SoC PRM-specific get_reset_source impl 130 * @was_any_context_lost_old: ptr to the SoC PRM context loss test fn 131 * @clear_context_loss_flags_old: ptr to the SoC PRM context loss flag clear fn 132 * @late_init: ptr to the late init function 133 * @assert_hardreset: ptr to the SoC PRM hardreset assert impl 134 * @deassert_hardreset: ptr to the SoC PRM hardreset deassert impl 135 * 136 * XXX @was_any_context_lost_old and @clear_context_loss_flags_old are 137 * deprecated. 138 */ 139 struct prm_ll_data { 140 u32 (*read_reset_sources)(void); 141 bool (*was_any_context_lost_old)(u8 part, s16 inst, u16 idx); 142 void (*clear_context_loss_flags_old)(u8 part, s16 inst, u16 idx); 143 int (*late_init)(void); 144 int (*assert_hardreset)(u8 shift, u8 part, s16 prm_mod, u16 offset); 145 int (*deassert_hardreset)(u8 shift, u8 st_shift, u8 part, s16 prm_mod, 146 u16 offset, u16 st_offset); 147 int (*is_hardreset_asserted)(u8 shift, u8 part, s16 prm_mod, 148 u16 offset); 149 void (*reset_system)(void); 150 int (*clear_mod_irqs)(s16 module, u8 regs, u32 wkst_mask); 151 u32 (*vp_check_txdone)(u8 vp_id); 152 void (*vp_clear_txdone)(u8 vp_id); 153 }; 154 155 extern int prm_register(struct prm_ll_data *pld); 156 extern int prm_unregister(struct prm_ll_data *pld); 157 158 int omap_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod, u16 offset); 159 int omap_prm_deassert_hardreset(u8 shift, u8 st_shift, u8 part, s16 prm_mod, 160 u16 offset, u16 st_offset); 161 int omap_prm_is_hardreset_asserted(u8 shift, u8 part, s16 prm_mod, u16 offset); 162 extern u32 prm_read_reset_sources(void); 163 extern bool prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx); 164 extern void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx); 165 void omap_prm_reset_system(void); 166 167 void omap_prm_reconfigure_io_chain(void); 168 int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask); 169 170 /* 171 * Voltage Processor (VP) identifiers 172 */ 173 #define OMAP3_VP_VDD_MPU_ID 0 174 #define OMAP3_VP_VDD_CORE_ID 1 175 #define OMAP4_VP_VDD_CORE_ID 0 176 #define OMAP4_VP_VDD_IVA_ID 1 177 #define OMAP4_VP_VDD_MPU_ID 2 178 179 u32 omap_prm_vp_check_txdone(u8 vp_id); 180 void omap_prm_vp_clear_txdone(u8 vp_id); 181 182 #endif 183 184 185 #endif 186