1 /* 2 * Copyright (c) 2022 ASR Microelectronics (Shanghai) Co., Ltd. All rights reserved. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include "duet_cm4.h" 17 #include "duet_common.h" 18 #include "duet.h" 19 #include "duet_boot.h" 20 duet_cfg_boot_type(void)21void duet_cfg_boot_type(void) 22 { 23 uint32_t flag1 = RETENTION_SRAM->BOOT_CFG; 24 uint32_t flag2 = REG_RD(AON_RST_CHECK_REG); 25 if ((RET_RAM_SOFT_RST_FLAG == flag1) && (AON_RST_CHECK_FLAG == (flag2 & AON_RST_CHECK_FLAG))) { 26 RETENTION_SRAM->BOOT_TYPE = SOFTWARE_RST; 27 } else if ((RET_RAM_DS_RST_FLAG == flag1) && (AON_RST_CHECK_FLAG == (flag2 & AON_RST_CHECK_FLAG))) { 28 RETENTION_SRAM->BOOT_CFG = RET_RAM_SOFT_RST_FLAG; 29 RETENTION_SRAM->BOOT_TYPE = DEEP_SLEEP_RST; 30 } else if ((RET_RAM_SOFT_RST_FLAG == flag1) && (0 == flag2)) { 31 REG_WR(AON_RST_CHECK_REG, AON_RST_CHECK_FLAG); 32 RETENTION_SRAM->BOOT_TYPE = HARDWARE_PIN_RST; 33 } else if (0 == flag2) { 34 REG_WR(AON_RST_CHECK_REG, AON_RST_CHECK_FLAG); 35 RETENTION_SRAM->BOOT_CFG = RET_RAM_SOFT_RST_FLAG; 36 RETENTION_SRAM->BOOT_TYPE = PWR_ON_RST; 37 } else { 38 REG_WR(AON_RST_CHECK_REG, AON_RST_CHECK_FLAG); 39 RETENTION_SRAM->BOOT_CFG = RET_RAM_SOFT_RST_FLAG; 40 RETENTION_SRAM->BOOT_TYPE = UNKNOWN_RST; 41 } 42 } 43 duet_set_ds_boot_type(void)44void duet_set_ds_boot_type(void) 45 { 46 RETENTION_SRAM->BOOT_CFG = RET_RAM_DS_RST_FLAG; 47 } 48 duet_get_boot_type(void)49uint32_t duet_get_boot_type(void) 50 { 51 return (RETENTION_SRAM->BOOT_TYPE); 52 } 53