96 lines
3.3 KiB
C
96 lines
3.3 KiB
C
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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2023 Arduino SA
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <string.h>
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#include "py/mphal.h"
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#include "storage.h"
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#include "sdram.h"
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void GIGA_board_startup(void) {
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}
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void GIGA_board_early_init(void) {
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HAL_InitTick(0);
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#if MICROPY_HW_ENABLE_INTERNAL_FLASH_STORAGE == 1
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// The Arduino/mbed bootloader uses the MPU to protect sector 1
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// which is used for the flash filesystem. The following code
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// resets and disables all MPU regions configured in the bootloader.
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HAL_MPU_Disable();
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MPU_Region_InitTypeDef MPU_InitStruct;
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MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;
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MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE;
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MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;
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MPU_InitStruct.IsShareable = MPU_ACCESS_NOT_SHAREABLE;
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MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL1;
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MPU_InitStruct.SubRegionDisable = 0x00;
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MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_ENABLE;
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for (int i = MPU_REGION_NUMBER0; i < MPU_REGION_NUMBER15; i++) {
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MPU_InitStruct.Number = i;
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MPU_InitStruct.Enable = MPU_REGION_DISABLE;
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HAL_MPU_ConfigRegion(&MPU_InitStruct);
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}
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#endif
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}
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void GIGA_board_enter_bootloader(void) {
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RTC_HandleTypeDef RTCHandle;
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RTCHandle.Instance = RTC;
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HAL_RTCEx_BKUPWrite(&RTCHandle, RTC_BKP_DR0, 0xDF59);
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NVIC_SystemReset();
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}
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void GIGA_board_low_power(int mode) {
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switch (mode) {
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case 0: // Leave stop mode.
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sdram_leave_low_power();
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break;
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case 1: // Enter stop mode.
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sdram_enter_low_power();
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break;
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case 2: // Enter standby mode.
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sdram_enter_power_down();
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break;
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}
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#if MICROPY_HW_ENABLE_INTERNAL_FLASH_STORAGE == 0
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// Enable QSPI deepsleep for modes 1 and 2
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mp_spiflash_deepsleep(&spi_bdev.spiflash, (mode != 0));
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#endif
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#if defined(M4_APP_ADDR)
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// Signal Cortex-M4 to go to Standby mode.
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if (mode == 2) {
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__HAL_RCC_HSEM_CLK_ENABLE();
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HAL_HSEM_FastTake(0);
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HAL_HSEM_Release(0, 0);
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__HAL_RCC_HSEM_CLK_DISABLE();
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HAL_Delay(100);
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}
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#endif
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}
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