103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
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/*************************************************************************
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*
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* Used with ICCARM and AARM.
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*
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* (c) Copyright IAR Systems 2018
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*
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* File name : FlashSTM32H7xx_QSPI.c
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* Description : Flash Loader For Serial NOR flash
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*
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* History :
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* 1. Date : July, 2018
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* Author : Atanas Uzunov
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* Description : Initial QSPI flashloader for Micron MT25TL01GHBB8ESF
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*
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*
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* $Revision: 39 $
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**************************************************************************/
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//#include <stdio.h>
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//#include <stdlib.h>
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#include <string.h>
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#include "stm32h7xx_hal.h"
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#define RESULT_OK 0
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#define RESULT_ERROR 0xff
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/** public functions **/
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/*************************************************************************
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* Function Name: FlashInit
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* Parameters: Flash Base Address
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*
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* Return: RESULT_OK
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* RESULT_ERROR
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*
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* Description: Init QSPI flash driver.
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*************************************************************************/
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//uint32_t FlashInit(void *base_of_flash, uint32_t image_size,
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// uint32_t link_address, uint32_t flags)
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//{
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// /* WORKAROUND for BL: Disable interrupts to avoid SPI/DMA interrupts enabled by BL */
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// __disable_irq();
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// /* Init value with the default clock after reset. Needed by HAL drivers */
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//// SystemCoreClock = 400000000;
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// if(QSPI_Init())
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// return RESULT_OK;
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// else
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// return RESULT_ERROR;
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//}
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/*************************************************************************
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* Function Name: FlashWrite
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* Parameters: block base address, offset in block, data size, ram buffer
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* pointer
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* Return: 0
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*
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* Description. Writes data to QSPI flash
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*************************************************************************/
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uint32_t FlashWrite(void *block_start,
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uint32_t offset_into_block,
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uint32_t count,
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char const *buffer)
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{
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uint32_t size = 0;
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/* Set destination address */
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uint32_t dest = (uint32_t)block_start + offset_into_block;
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/* Set source address */
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uint8_t * src = (uint8_t*)buffer;
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while(size < count)
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{
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/* Write one page */
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if(!QSPI_WritePage(dest, QSPI_PAGE_SIZE, src))
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{
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return RESULT_ERROR;
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}
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size += (QSPI_PAGE_SIZE);
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dest += (QSPI_PAGE_SIZE);
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src += (QSPI_PAGE_SIZE);
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}
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return RESULT_OK;
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}
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/*************************************************************************
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* Function Name: FlashErase
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* Parameters: Block Address, Block Size
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*
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* Return: 0
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*
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* Description: Erase block
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*************************************************************************/
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uint32_t FlashErase(void *block_start,
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uint32_t block_size)
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{
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if(QSPI_EraseSector((uint32_t)block_start))
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return RESULT_OK;
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else
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return RESULT_ERROR;
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}
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