1 /***************************************************************************//** 2 * \file cybsp_dsram.c 3 * 4 * Description: 5 * Provides initialization code for handling deepsleep ram. 6 * 7 ******************************************************************************** 8 * \copyright 9 * Copyright 2018-2022 Cypress Semiconductor Corporation (an Infineon company) or 10 * an affiliate of Cypress Semiconductor Corporation 11 * 12 * SPDX-License-Identifier: Apache-2.0 13 * 14 * Licensed under the Apache License, Version 2.0 (the "License"); 15 * you may not use this file except in compliance with the License. 16 * You may obtain a copy of the License at 17 * 18 * http://www.apache.org/licenses/LICENSE-2.0 19 * 20 * Unless required by applicable law or agreed to in writing, software 21 * distributed under the License is distributed on an "AS IS" BASIS, 22 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 23 * See the License for the specific language governing permissions and 24 * limitations under the License. 25 *******************************************************************************/ 26 #include <stdlib.h> 27 #include "cy_syspm.h" 28 #include "cy_sysclk.h" 29 #include "cybsp.h" 30 #if defined(CY_USING_HAL) 31 #include "cyhal_hwmgr.h" 32 #include "cyhal_syspm.h" 33 #endif 34 #include "cybsp_smif_init.h" 35 #if defined(CY_RTOS_AWARE) || defined(COMPONENT_RTOS_AWARE) 36 #include "cyabs_rtos_dsram.h" 37 #endif 38 #include "system_cat1b.h" 39 #include "cybsp_dsram.h" 40 #include "cmsis_compiler.h" 41 42 #if defined(__cplusplus) 43 extern "C" { 44 #endif 45 46 47 48 //-------------------------------------------------------------------------------------------------- 49 // cybsp_syspm_do_warmboot 50 //-------------------------------------------------------------------------------------------------- cybsp_syspm_do_warmboot(void)51__WEAK void cybsp_syspm_do_warmboot(void) 52 { 53 #if defined(CY_RTOS_AWARE) || defined(COMPONENT_RTOS_AWARE) 54 cyabs_rtos_exit_dsram(); 55 #endif 56 } 57 58 59 CY_SECTION_RAMFUNC_BEGIN 60 //-------------------------------------------------------------------------------------------------- 61 // cybsp_warmboot_handler 62 //-------------------------------------------------------------------------------------------------- cybsp_warmboot_handler(void)63void cybsp_warmboot_handler(void) 64 { 65 SystemInit_Warmboot_CAT1B_CM33(); 66 67 #if FLASH_BOOT 68 cybsp_smif_enable(); 69 cybsp_smif_init(); 70 #endif 71 72 init_cycfg_all(); 73 74 cybsp_syspm_do_warmboot(); 75 } 76 77 78 CY_SECTION_RAMFUNC_END 79 80 /* DS-RAM Warmboot Re-entry*/ 81 extern unsigned int __INITIAL_SP /*__StackTop*/; 82 cy_stc_syspm_warmboot_entrypoint_t syspmBspDeepSleepEntryPoint = 83 { (uint32_t*)(&__INITIAL_SP), (uint32_t*)cybsp_warmboot_handler }; 84 85 //-------------------------------------------------------------------------------------------------- 86 // cybsp_syspm_dsram_init 87 //-------------------------------------------------------------------------------------------------- cybsp_syspm_dsram_init(void)88__WEAK cy_rslt_t cybsp_syspm_dsram_init(void) 89 { 90 /* Setup DS-RAM Warmboot Re-entry. IAR is not supported */ 91 #if defined(__ARMCC_VERSION) || defined (__GNUC__) 92 Cy_Syslib_SetWarmBootEntryPoint((uint32_t*)&syspmBspDeepSleepEntryPoint, true); 93 #endif 94 95 return CY_RSLT_SUCCESS; 96 } 97 98 99 #if defined(__cplusplus) 100 } 101 #endif 102
