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 void __iomem *prm_base; 20 extern void omap2_set_globals_prm(void __iomem *prm); 21 # endif 22 23 24 /* 25 * MAX_MODULE_SOFTRESET_WAIT: Maximum microseconds to wait for OMAP 26 * module to softreset 27 */ 28 #define MAX_MODULE_SOFTRESET_WAIT 10000 29 30 /* 31 * MAX_MODULE_HARDRESET_WAIT: Maximum microseconds to wait for an OMAP 32 * submodule to exit hardreset 33 */ 34 #define MAX_MODULE_HARDRESET_WAIT 10000 35 36 /* 37 * Register bitfields 38 */ 39 40 /* 41 * 24XX: PM_PWSTST_CORE, PM_PWSTST_GFX, PM_PWSTST_MPU, PM_PWSTST_DSP 42 * 43 * 2430: PM_PWSTST_MDM 44 * 45 * 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX, 46 * PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU, 47 * PM_PWSTST_NEON 48 */ 49 #define OMAP_INTRANSITION_MASK (1 << 20) 50 51 52 /* 53 * 24XX: PM_PWSTST_GFX, 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_POWERSTATEST_SHIFT 0 62 #define OMAP_POWERSTATEST_MASK (0x3 << 0) 63 64 /* 65 * 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX, 66 * PM_PWSTCTRL_DSP, PM_PWSTST_MPU 67 * 68 * 2430: PM_PWSTCTRL_MDM shared bits 69 * 70 * 3430: PM_PWSTCTRL_IVA2, PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, 71 * PM_PWSTCTRL_GFX, PM_PWSTCTRL_DSS, PM_PWSTCTRL_CAM, PM_PWSTCTRL_PER, 72 * PM_PWSTCTRL_NEON shared bits 73 */ 74 #define OMAP_POWERSTATE_SHIFT 0 75 #define OMAP_POWERSTATE_MASK (0x3 << 0) 76 77 /* 78 * Standardized OMAP reset source bits 79 * 80 * To the extent these happen to match the hardware register bit 81 * shifts, it's purely coincidental. Used by omap-wdt.c. 82 * OMAP_UNKNOWN_RST_SRC_ID_SHIFT is a special value, used whenever 83 * there are any bits remaining in the global PRM_RSTST register that 84 * haven't been identified, or when the PRM code for the current SoC 85 * doesn't know how to interpret the register. 86 */ 87 #define OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT 0 88 #define OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT 1 89 #define OMAP_SECU_VIOL_RST_SRC_ID_SHIFT 2 90 #define OMAP_MPU_WD_RST_SRC_ID_SHIFT 3 91 #define OMAP_SECU_WD_RST_SRC_ID_SHIFT 4 92 #define OMAP_EXTWARM_RST_SRC_ID_SHIFT 5 93 #define OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT 6 94 #define OMAP_VDD_IVA_VM_RST_SRC_ID_SHIFT 7 95 #define OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT 8 96 #define OMAP_ICEPICK_RST_SRC_ID_SHIFT 9 97 #define OMAP_ICECRUSHER_RST_SRC_ID_SHIFT 10 98 #define OMAP_C2C_RST_SRC_ID_SHIFT 11 99 #define OMAP_UNKNOWN_RST_SRC_ID_SHIFT 12 100 101 #ifndef __ASSEMBLER__ 102 103 /** 104 * struct prm_reset_src_map - map register bitshifts to standard bitshifts 105 * @reg_shift: bitshift in the PRM reset source register 106 * @std_shift: bitshift equivalent in the standard reset source list 107 * 108 * The fields are signed because -1 is used as a terminator. 109 */ 110 struct prm_reset_src_map { 111 s8 reg_shift; 112 s8 std_shift; 113 }; 114 115 /** 116 * struct prm_ll_data - fn ptrs to per-SoC PRM function implementations 117 * @read_reset_sources: ptr to the SoC PRM-specific get_reset_source impl 118 * @was_any_context_lost_old: ptr to the SoC PRM context loss test fn 119 * @clear_context_loss_flags_old: ptr to the SoC PRM context loss flag clear fn 120 * 121 * XXX @was_any_context_lost_old and @clear_context_loss_flags_old are 122 * deprecated. 123 */ 124 struct prm_ll_data { 125 u32 (*read_reset_sources)(void); 126 bool (*was_any_context_lost_old)(u8 part, s16 inst, u16 idx); 127 void (*clear_context_loss_flags_old)(u8 part, s16 inst, u16 idx); 128 }; 129 130 extern int prm_register(struct prm_ll_data *pld); 131 extern int prm_unregister(struct prm_ll_data *pld); 132 133 extern u32 prm_read_reset_sources(void); 134 extern bool prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx); 135 extern void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx); 136 137 #endif 138 139 140 #endif 141