1 /* 2 * Copyright (c) 2020 - 2024 Renesas Electronics Corporation and/or its affiliates 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 /*********************************************************************************************************************** 8 * Includes <System Includes> , "Project Includes" 9 **********************************************************************************************************************/ 10 #include "bsp_api.h" 11 12 /*********************************************************************************************************************** 13 * Macro definitions 14 **********************************************************************************************************************/ 15 16 /*********************************************************************************************************************** 17 * Typedef definitions 18 **********************************************************************************************************************/ 19 20 /*********************************************************************************************************************** 21 * Exported global variables (to be accessed by other files) 22 **********************************************************************************************************************/ 23 24 /*********************************************************************************************************************** 25 * Exported global functions (to be accessed by other files) 26 **********************************************************************************************************************/ 27 #if (1 == _RZN_ORDINAL) 28 extern void bsp_master_mpu_init(void); 29 extern void bsp_global_system_counter_init(void); 30 31 #endif 32 33 #if defined(BSP_CFG_CORE_CR52) 34 #if (BSP_FEATURE_TFU_SUPPORTED & BSP_CFG_USE_TFU_MATHLIB) 35 extern void bsp_tfu_init(void); 36 37 #endif 38 #endif 39 40 #if BSP_CFG_C_RUNTIME_INIT 41 extern void bsp_static_constructor_init(void); 42 extern void bsp_loader_data_init(void); 43 extern void bsp_loader_bss_init(void); 44 45 #endif 46 47 #if !BSP_CFG_PORT_PROTECT 48 extern void bsp_release_port_protect(void); 49 50 #endif 51 52 #if !(BSP_CFG_RAM_EXECUTION) 53 54 extern void bsp_copy_to_ram(void); 55 56 extern void bsp_application_bss_init(void); 57 58 #endif 59 60 extern void bsp_memory_protect_setting(void); 61 extern void bsp_irq_cfg_common(void); 62 63 extern void R_BSP_WarmStart(bsp_warm_start_event_t event); 64 65 /*********************************************************************************************************************** 66 * Private global variables and functions 67 **********************************************************************************************************************/ 68 int32_t main(void); 69 70 #if BSP_CFG_EARLY_INIT 71 static void bsp_init_uninitialized_vars(void); 72 73 #endif 74 75 /*******************************************************************************************************************//** 76 * @addtogroup BSP_MCU 77 * @{ 78 **********************************************************************************************************************/ 79 80 /*******************************************************************************************************************//** 81 * Initialize the MCU and the runtime environment. 82 **********************************************************************************************************************/ SystemInit(void)83void SystemInit (void) 84 { 85 #if BSP_CFG_EARLY_INIT 86 87 /* Initialize uninitialized BSP variables early for use in R_BSP_WarmStart. */ 88 bsp_init_uninitialized_vars(); 89 #endif 90 91 /* Call before initializing clock and variables. */ 92 R_BSP_WarmStart(BSP_WARM_START_RESET); 93 94 #if (1 == _RZN_ORDINAL) 95 96 /* Configure system clocks. */ 97 bsp_clock_init(); 98 #endif 99 100 /* Call post clock initialization hook. */ 101 R_BSP_WarmStart(BSP_WARM_START_POST_CLOCK); 102 103 #if BSP_CFG_C_RUNTIME_INIT 104 105 /* Copy the primary core loader data from external Flash to internal RAM. */ 106 bsp_loader_data_init(); 107 108 /* Clear loader bss section in internal RAM. */ 109 bsp_loader_bss_init(); 110 #endif 111 112 #if BSP_FEATURE_ADDRESS_EXPANDER_SUPPORTED 113 #if (1 == _RZN_ORDINAL) 114 115 /* Initialize the Address Expander settings. */ 116 bsp_address_expander_init(); 117 #endif 118 #endif 119 120 #if BSP_FEATURE_TZC400_SUPPORTED 121 #if (1 == _RZN_ORDINAL) 122 123 /* Initialize the TZC-400 settings. */ 124 bsp_tzc_400_cfg(); 125 #endif 126 #endif 127 128 /* Initialize SystemCoreClock variable. */ 129 SystemCoreClockUpdate(); 130 131 /* Set memory attributes, etc. */ 132 bsp_memory_protect_setting(); 133 134 #if !(BSP_CFG_RAM_EXECUTION) 135 136 /* Copy the application program from external Flash to internal RAM. 137 * In the case of multi-core operation, copies each section (vector, loader(program/data), user(program/data)) of 138 * the secondary core (or later). */ 139 bsp_copy_to_ram(); 140 141 /* Clear bss section in internal RAM. */ 142 bsp_application_bss_init(); 143 #endif 144 145 #if BSP_CFG_C_RUNTIME_INIT 146 147 /* Initialize static constructors */ 148 bsp_static_constructor_init(); 149 #endif 150 151 #if !BSP_CFG_PORT_PROTECT 152 153 /* When writing to the PRCR register the upper 8-bits must be the correct key. Set lower bits to 0 to 154 * disable writes. */ 155 bsp_release_port_protect(); 156 #endif 157 158 /* Call Post C runtime initialization hook. */ 159 R_BSP_WarmStart(BSP_WARM_START_POST_C); 160 161 #if (1 == _RZN_ORDINAL) 162 #if BSP_CFG_SEMAPHORE_ENABLE 163 164 /* Initialize semaphores required for synchronization and exclusive control between CPUs. */ 165 bsp_semaphore_init(); 166 #endif 167 168 /* Initialize the Master-MPU settings. */ 169 bsp_master_mpu_init(); 170 171 /* Initialize global system counter. The counter is enabled and is incrementing. */ 172 bsp_global_system_counter_init(); 173 #endif 174 175 /* GIC initialization */ 176 bsp_irq_cfg_common(); 177 178 /* Initialize GIC interrupts. */ 179 bsp_irq_cfg(); 180 181 #if defined(BSP_CFG_CORE_CR52) 182 #if (BSP_FEATURE_TFU_SUPPORTED & BSP_CFG_USE_TFU_MATHLIB) 183 184 /* Initialize the TFU settings. */ 185 bsp_tfu_init(); 186 #endif 187 #endif 188 189 /* Jump to main. */ 190 main(); 191 } 192 193 /** @} (end addtogroup BSP_MCU) */ 194 195 #if BSP_CFG_EARLY_INIT 196 197 /*******************************************************************************************************************//** 198 * Initialize BSP variables not handled by C runtime startup. 199 **********************************************************************************************************************/ bsp_init_uninitialized_vars(void)200static void bsp_init_uninitialized_vars (void) 201 { 202 g_protect_port_counter = 0; 203 204 extern volatile uint16_t g_protect_counters[]; 205 for (uint32_t i = 0; i < 4; i++) 206 { 207 g_protect_counters[i] = 0; 208 } 209 210 SystemCoreClockUpdate(); 211 } 212 213 #endif 214
