118 lines
4.4 KiB
C
118 lines
4.4 KiB
C
/*
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2020 Lucian Copeland for Adafruit Industries
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include "stm32f4xx_hal.h"
|
|
#include "supervisor/shared/safe_mode.h"
|
|
#include <stdbool.h>
|
|
|
|
// F4 Series
|
|
#ifdef STM32F401xE
|
|
#include "stm32f4/stm32f401xe/clocks.h"
|
|
#endif
|
|
#ifdef STM32F411xE
|
|
#include "stm32f4/stm32f411xe/clocks.h"
|
|
#endif
|
|
#ifdef STM32F412Cx
|
|
#include "stm32f4/stm32f412cx/clocks.h"
|
|
#endif
|
|
#ifdef STM32F412Zx
|
|
#include "stm32f4/stm32f412zx/clocks.h"
|
|
#endif
|
|
#ifdef STM32F405xx
|
|
#include "stm32f4/stm32f405xx/clocks.h"
|
|
#endif
|
|
#ifdef STM32F407xx
|
|
#include "stm32f4/stm32f407xx/clocks.h"
|
|
#endif
|
|
#ifdef STM32F446xx
|
|
#include "stm32f4/stm32f446xx/clocks.h"
|
|
#endif
|
|
|
|
void stm32_peripherals_clocks_init(void) {
|
|
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
|
|
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
|
|
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
|
|
|
|
// Set voltage scaling in accordance with system clock speed
|
|
__HAL_RCC_PWR_CLK_ENABLE();
|
|
__HAL_PWR_VOLTAGESCALING_CONFIG(CPY_CLK_VSCALE);
|
|
|
|
// Set up primary PLL and HSE clocks
|
|
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
|
|
#if (BOARD_HAS_LOW_SPEED_CRYSTAL)
|
|
RCC_OscInitStruct.OscillatorType |= RCC_OSCILLATORTYPE_LSE;
|
|
RCC_OscInitStruct.LSEState = RCC_LSE_ON;
|
|
#else
|
|
RCC_OscInitStruct.OscillatorType |= RCC_OSCILLATORTYPE_LSI;
|
|
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
|
|
#endif
|
|
RCC_OscInitStruct.HSEState = BOARD_HSE_SOURCE;
|
|
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
|
|
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
|
|
RCC_OscInitStruct.PLL.PLLM = HSE_VALUE / 1000000;
|
|
RCC_OscInitStruct.PLL.PLLN = CPY_CLK_PLLN;
|
|
RCC_OscInitStruct.PLL.PLLP = CPY_CLK_PLLP;
|
|
RCC_OscInitStruct.PLL.PLLQ = CPY_CLK_PLLQ;
|
|
#if (CPY_CLK_USB_USES_AUDIOPLL)
|
|
RCC_OscInitStruct.PLL.PLLR = 2; // Unused but required by HAL
|
|
#endif
|
|
|
|
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
|
|
// Clock issues are too problematic to even attempt recovery.
|
|
// If you end up here, check whether your LSE settings match your board.
|
|
while (1) {
|
|
;
|
|
}
|
|
}
|
|
|
|
// Configure bus clock sources and divisors
|
|
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
|
|
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
|
|
RCC_ClkInitStruct.AHBCLKDivider = CPY_CLK_AHBDIV;
|
|
RCC_ClkInitStruct.APB1CLKDivider = CPY_CLK_APB1DIV;
|
|
RCC_ClkInitStruct.APB2CLKDivider = CPY_CLK_APB2DIV;
|
|
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, CPY_CLK_FLASH_LATENCY);
|
|
|
|
// Set up non-bus peripherals
|
|
// TODO: I2S settings go here
|
|
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
|
|
#if (BOARD_HAS_LOW_SPEED_CRYSTAL)
|
|
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
|
|
#else
|
|
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
|
|
#endif
|
|
#if (CPY_CLK_USB_USES_AUDIOPLL)
|
|
// Not supported by all lines. Should always result in 48M.
|
|
PeriphClkInitStruct.PLLI2S.PLLI2SM = HSE_VALUE / 1000000;
|
|
PeriphClkInitStruct.PLLI2S.PLLI2SQ = 4;
|
|
PeriphClkInitStruct.PLLI2S.PLLI2SN = 192;
|
|
PeriphClkInitStruct.PeriphClockSelection |= RCC_PERIPHCLK_CK48;
|
|
PeriphClkInitStruct.Clk48ClockSelection = RCC_CK48CLKSOURCE_PLLI2SQ;
|
|
#endif
|
|
|
|
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
|
|
}
|