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toaster-oven-bluepill/Lib/EEPROM_Emul/Porting/STM32U5/flash_interface.c

299 lines
7.9 KiB

/**
******************************************************************************
* @file EEPROM_Emul/Porting/STM32L5/flash_interface.c
* @author MCD Application Team
* @brief This file provides all the EEPROM emulation flash interface functions.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "eeprom_emul.h"
#include "flash_interface.h"
/** @addtogroup EEPROM_Emulation
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
uint64_t FlashWord[2] =
{
0x0, 0x0
};
uint8_t FlashWord_status = 0; /* 0 is FlashWord is empty, 1 it is full */
const uint32_t QuadWord[4] =
{
0x00000000,
0x00000000,
0x00000000,
0x00000000
};
/* Private function prototypes -----------------------------------------------*/
#ifdef FLASH_BANK_2
static uint32_t GetBankNumber(uint32_t Address);
#endif
/* Exported functions --------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @addtogroup EEPROM_Private_Functions
* @{
*/
/**
* @brief Write a quad word at the given address in Flash (function is called FI_WriteDoubleWord to respect legacy for X-CUBE-EEPROM)
* @param Address Where to write
* @param Data What to write
* @param Write_type Type of writing on going (see EE_Write_type)
* @retval EE_Status
* - EE_OK: on success
* - EE_WRITE_ERROR: if an error occurs
* - EE_FLASH_USED: flash currently used by CPU2
*/
EE_Status FI_WriteDoubleWord(uint32_t Address, uint64_t* Data, EE_Write_type Write_type)
{
EE_Status status = EE_OK;
if(Write_type == EE_SET_PAGE)
{
FlashWord[0] = Data[0];
FlashWord[1] = Data[0];
}
else
{
FlashWord[0] = Data[0];
FlashWord[1] = Data[1];
}
if(HAL_FLASH_Program(FLASH_TYPEPROGRAM_QUADWORD, Address, ((uint32_t)FlashWord)) != HAL_OK)
{
status = EE_WRITE_ERROR;
}
return status;
}
/**
* @brief Erase a page in polling mode
* @param Page Page number
* @param NbPages Number of pages to erase
* @retval EE_Status
* - EE_OK: on success
* - EE error code: if an error occurs
*/
EE_Status FI_PageErase(uint32_t Page, uint16_t NbPages)
{
EE_Status status = EE_OK;
FLASH_EraseInitTypeDef s_eraseinit;
uint32_t bank = FLASH_BANK_1, page_error = 0U;
#ifdef FLASH_BANK_2
bank = GetBankNumber(PAGE_ADDRESS(Page));
#endif
s_eraseinit.TypeErase = FLASH_TYPEERASE_PAGES; /* if TrustZone secure activated -> FLASH_TYPEERASE_PAGES_NS; */
s_eraseinit.NbPages = NbPages;
s_eraseinit.Page = Page;
s_eraseinit.Banks = bank;
/* Erase the Page: Set Page status to ERASED status */
if (HAL_FLASHEx_Erase(&s_eraseinit, &page_error) != HAL_OK)
{
status = EE_ERASE_ERROR;
}
return status;
}
/**
* @brief Erase a page with interrupt enabled
* @param Page Page number
* @param NbPages Number of pages to erase
* @retval EE_Status
* - EE_OK: on success
* - EE error code: if an error occurs
*/
EE_Status FI_PageErase_IT(uint32_t Page, uint16_t NbPages)
{
EE_Status status = EE_OK;
FLASH_EraseInitTypeDef s_eraseinit;
uint32_t bank = FLASH_BANK_1;
#ifdef FLASH_BANK_2
bank = GetBankNumber(PAGE_ADDRESS(Page));
#endif
s_eraseinit.TypeErase = FLASH_TYPEERASE_PAGES; /* if TrustZone secure activated -> FLASH_TYPEERASE_PAGES_NS; */
s_eraseinit.NbPages = NbPages;
s_eraseinit.Page = Page;
s_eraseinit.Banks = bank;
/* Erase the Page: Set Page status to ERASED status */
if (HAL_FLASHEx_Erase_IT(&s_eraseinit) != HAL_OK)
{
status = EE_ERASE_ERROR;
}
return status;
}
/**
* @brief Flush the caches if needed to keep coherency when the flash content is modified
*/
void FI_CacheFlush()
{
/* No flush needed. EEPROM flash area is defined as non-cacheable thanks to the MPU in main.c. */
return;
}
#ifdef FLASH_BANK_2
/**
* @brief Gets the bank of a given address
* @param Address Address of the FLASH Memory
* @retval Bank_Number The bank of a given address
*/
static uint32_t GetBankNumber(uint32_t Address)
{
uint32_t bank = 0U;
if (READ_BIT(FLASH->OPTR, FLASH_OPTR_SWAP_BANK) == 0U)
{
/* No Bank swap */
if (Address < (FLASH_BASE + FLASH_BANK_SIZE))
{
bank = FLASH_BANK_1;
}
else
{
bank = FLASH_BANK_2;
}
}
else
{
/* Bank swap */
if (Address < (FLASH_BASE + FLASH_BANK_SIZE))
{
bank = FLASH_BANK_2;
}
else
{
bank = FLASH_BANK_1;
}
}
return bank;
}
#endif
/**
* @brief Delete corrupted Flash address, can be called from NMI. No Timeout.
* @param Address Address of the FLASH Memory to delete
* @retval EE_Status
* - EE_OK: on success
* - EE error code: if an error occurs
*/
EE_Status FI_DeleteCorruptedFlashAddress(uint32_t Address)
{
EE_Status status = EE_OK;
/* Wait for previous programmation completion */
while(__HAL_FLASH_GET_FLAG(FLASH_NSSR_BSY))
{
}
/* Clear previous non-secure error programming flag */
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_ALL_ERRORS);
/* Set FLASH Programmation bit */
SET_BIT(FLASH->NSCR, FLASH_NSCR_PG);
/* Program quad word of value 0 */
// HAL_FLASH_Program(FLASH_TYPEPROGRAM_QUADWORD, Address, ((uint32_t)QuadWord));
*(__IO uint64_t*)(Address) = (uint64_t)0U;
*(__IO uint64_t*)(Address+8U) = (uint64_t)0U;
/* Wait programmation completion */
while(__HAL_FLASH_GET_FLAG(FLASH_NSSR_BSY))
{
}
/* Check if error occured */
if((__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PROGERR)) ||
(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR)) ||
(__HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGSERR)))
{
status = EE_DELETE_ERROR;
}
/* Check FLASH End of Operation flag */
if (__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP))
{
/* Clear FLASH End of Operation pending bit */
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP);
}
/* Clear FLASH Programmation bit */
CLEAR_BIT(FLASH->NSCR, FLASH_NSCR_PG);
/* Clear FLASH ECCD bit */
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_ECCD);
return status;
}
/**
* @brief Check if the configuration is 128-bits bank or 2*64-bits bank
* @param None
* @retval EE_Status
* - EE_OK: on success
* - EE error code: if an error occurs
*/
EE_Status FI_CheckBankConfig(void)
{
#if defined (FLASH_OPTR_DBANK)
FLASH_OBProgramInitTypeDef sOBCfg;
EE_Status status;
/* Request the Option Byte configuration :
- User and RDP level are always returned
- WRP and PCROP are not requested */
sOBCfg.WRPArea = 0xFF;
HAL_FLASHEx_OBGetConfig(&sOBCfg);
/* Check the value of the DBANK user option byte */
if ((sOBCfg.USERConfig & OB_DBANK_64_BITS) != 0)
{
status = EE_OK;
}
else
{
status = EE_INVALID_BANK_CFG;
}
return status;
#else
/* No feature 128-bits single bank, so always 64-bits dual bank */
return EE_OK;
#endif
}
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/