1 /* 2 * Copyright (c) 2021 Basalte bv 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #define DT_DRV_COMPAT nxp_imx_src 8 9 #include <soc.h> 10 #include <zephyr/drivers/hwinfo.h> 11 #include <string.h> 12 #include <zephyr/sys/byteorder.h> 13 14 #include <fsl_src.h> 15 16 BUILD_ASSERT(DT_NUM_INST_STATUS_OKAY(DT_DRV_COMPAT) == 1, "No nxp,imx-src compatible device found"); 17 z_impl_hwinfo_get_reset_cause(uint32_t * cause)18int z_impl_hwinfo_get_reset_cause(uint32_t *cause) 19 { 20 uint32_t flags = 0; 21 22 uint32_t reason = SRC_GetResetStatusFlags((SRC_Type *)DT_INST_REG_ADDR(0)); 23 24 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_IPP_RESET_B) && \ 25 FSL_FEATURE_SRC_HAS_SRSR_IPP_RESET_B) 26 if (reason & kSRC_IppResetPinFlag) { 27 flags |= RESET_PIN; 28 } 29 #endif 30 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_POR) && FSL_FEATURE_SRC_HAS_SRSR_POR) 31 if (reason & kSRC_PowerOnResetFlag) { 32 flags |= RESET_POR; 33 } 34 #endif 35 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_LOCKUP) && FSL_FEATURE_SRC_HAS_SRSR_LOCKUP) 36 if (reason & kSRC_CoreLockupResetFlag) { 37 flags |= RESET_CPU_LOCKUP; 38 } 39 #endif 40 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_LOCKUP_SYSRESETREQ) && \ 41 FSL_FEATURE_SRC_HAS_SRSR_LOCKUP_SYSRESETREQ) 42 if (reason & kSRC_LockupSysResetFlag) { 43 flags |= RESET_CPU_LOCKUP | RESET_SOFTWARE; 44 } 45 #endif 46 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_CSU_RESET_B) && FSL_FEATURE_SRC_HAS_SRSR_CSU_RESET_B) 47 if (reason & kSRC_CsuResetFlag) { 48 flags |= RESET_SECURITY; 49 } 50 #endif 51 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_SNVS) && FSL_FEATURE_SRC_HAS_SRSR_SNVS) 52 if (reason & kSRC_SNVSFailResetFlag) { 53 flags |= RESET_HARDWARE; 54 } 55 #endif 56 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_IPP_USER_RESET_B) && \ 57 FSL_FEATURE_SRC_HAS_SRSR_IPP_USER_RESET_B) 58 if (reason & kSRC_IppUserResetFlag) { 59 flags |= RESET_USER; 60 } 61 #endif 62 if (reason & kSRC_WatchdogResetFlag) { 63 flags |= RESET_WATCHDOG; 64 } 65 if (reason & kSRC_JTAGGeneratedResetFlag) { 66 flags |= RESET_DEBUG; 67 } 68 if (reason & kSRC_JTAGSoftwareResetFlag) { 69 flags |= RESET_DEBUG; 70 } 71 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_JTAG_SW_RST) && FSL_FEATURE_SRC_HAS_SRSR_JTAG_SW_RST) 72 if (reason & kSRC_JTAGSystemResetFlag) { 73 flags |= RESET_DEBUG; 74 } 75 #endif 76 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_SW) && FSL_FEATURE_SRC_HAS_SRSR_SW) 77 if (reason & kSRC_SoftwareResetFlag) { 78 flags |= RESET_SOFTWARE; 79 } 80 #endif 81 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_WDOG3_RST_B) && FSL_FEATURE_SRC_HAS_SRSR_WDOG3_RST_B) 82 if (reason & kSRC_Wdog3ResetFlag) { 83 flags |= RESET_WATCHDOG; 84 } 85 #endif 86 if (reason & kSRC_TemperatureSensorResetFlag) { 87 flags |= RESET_TEMPERATURE; 88 } 89 #if !(defined(FSL_FEATURE_SRC_HAS_NO_SRSR_WBI) && FSL_FEATURE_SRC_HAS_NO_SRSR_WBI) 90 if (reason & kSRC_WarmBootIndicationFlag) { 91 flags |= RESET_SOFTWARE; 92 } 93 #endif 94 95 *cause = flags; 96 97 return 0; 98 } 99 z_impl_hwinfo_clear_reset_cause(void)100int z_impl_hwinfo_clear_reset_cause(void) 101 { 102 uint32_t reason = -1; 103 104 SRC_ClearResetStatusFlags((SRC_Type *)DT_INST_REG_ADDR(0), reason); 105 106 return 0; 107 } 108 z_impl_hwinfo_get_supported_reset_cause(uint32_t * supported)109int z_impl_hwinfo_get_supported_reset_cause(uint32_t *supported) 110 { 111 *supported = (RESET_WATCHDOG 112 | RESET_DEBUG 113 | RESET_TEMPERATURE 114 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_IPP_RESET_B) && \ 115 FSL_FEATURE_SRC_HAS_SRSR_IPP_RESET_B) 116 | RESET_PIN 117 #endif 118 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_POR) && FSL_FEATURE_SRC_HAS_SRSR_POR) 119 | RESET_POR 120 #endif 121 #if (defined(FSL_FEATURE_SRC_HAS_SCR_LOCKUP_RST) && FSL_FEATURE_SRC_HAS_SCR_LOCKUP_RST) 122 | RESET_CPU_LOCKUP 123 #endif 124 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_LOCKUP_SYSRESETREQ) && \ 125 FSL_FEATURE_SRC_HAS_SRSR_LOCKUP_SYSRESETREQ) 126 | RESET_CPU_LOCKUP | RESET_SOFTWARE 127 #endif 128 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_CSU_RESET_B) && FSL_FEATURE_SRC_HAS_SRSR_CSU_RESET_B) 129 | RESET_SECURITY 130 #endif 131 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_SNVS) && FSL_FEATURE_SRC_HAS_SRSR_SNVS) 132 | RESET_HARDWARE 133 #endif 134 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_IPP_USER_RESET_B) && \ 135 FSL_FEATURE_SRC_HAS_SRSR_IPP_USER_RESET_B) 136 | RESET_USER 137 #endif 138 #if (defined(FSL_FEATURE_SRC_HAS_SRSR_SW) && FSL_FEATURE_SRC_HAS_SRSR_SW) 139 | RESET_SOFTWARE 140 #endif 141 ); 142 143 return 0; 144 } 145
