828F/applications/disk/QSPI_elmfatfs.c

/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2025-11-22     Administrator       the first version
 *//*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2025-11-22     Administrator       the first version
 */
#include <rtthread.h>
#include <rtdevice.h>
#include "fal_cfg.h"
#include "spi_flash.h"
#include "spi_flash_sfud.h"
#include "drv_qspi.h"
#include "dfs_fs.h"
#include "fal.h"

/* 添加 DEBUG 头文件 */
#include <rtdbg.h>

char w25qxx_read_status_register2(struct rt_qspi_device *device)
{
    /* 0x35 read status register2 */
    char instruction = 0x35, status;
    rt_qspi_send_then_recv(device, &instruction, 1, &status, 1);
    return status;
}

void w25qxx_write_enable(struct rt_qspi_device *device)
{
    /* 0x06 write enable */
    char instruction = 0x06;
    rt_qspi_send(device, &instruction, 1);
}

void w25qxx_enter_qspi_mode(struct rt_qspi_device *device)
{
    char status = 0;
    /* 0x38 enter qspi mode */
    char instruction = 0x38;
    char write_status2_buf[2] = {0};
    /* 0x31 write status register2 */
    write_status2_buf[0] = 0x31;
    status = w25qxx_read_status_register2(device);
    if (!(status & 0x02))
    {
        status |= 1 << 1;
        w25qxx_write_enable(device);
        write_status2_buf[1] = status;
        rt_qspi_send(device, &write_status2_buf, 2);
        rt_qspi_send(device, &instruction, 1);
        LOG_D("flash already enter qspi mode");
        rt_thread_mdelay(10);
    }
}

int spi_flash_init(void)
{
    rt_err_t ret = stm32_qspi_bus_attach_device("qspi1", "qspi10", RT_NULL, 4, w25qxx_enter_qspi_mode, RT_NULL);
    if (ret != RT_EOK)
    {
        LOG_E("qspi attach device failed\n");
        return -RT_ERROR;
    }
    /* init W25Q256 */
    // spi_flash_dev_name 需要用配置文件内的，spi_dev_name实际是SPI挂在参数
    if(rt_sfud_flash_probe(FAL_USING_NOR_FLASH_DEV_NAME, "qspi10") == RT_NULL)
    {
        LOG_E("rt sfud flash error");
        return -1;
    }
    LOG_I("SFUD flash '%s' probed successfully.", FAL_USING_NOR_FLASH_DEV_NAME);
    /* 初始化 fal */
    int fal_ = fal_init();
    if (fal_ > 0)
    {
        LOG_I("FAL Number of partitions = %d",fal_);
    }else{
        return -1;
    }
    /* 创建 MTD 块设备 */
    if (fal_mtd_nor_device_create("sysdata") == RT_NULL)
    {
        LOG_E("Failed to create MTD device for sysdata!");
        return -1;
    }
    LOG_I("MTD device 'sysdata' created.");
    return RT_EOK;
}
INIT_DEVICE_EXPORT(spi_flash_init);

int qspi_fal(void)
{
    LOG_I("Create file path /sys");
    mkdir("/sys", 0777);

    /* 挂载 littlefs */
    if (dfs_mount("sysdata", "/sys", "lfs", 0, NULL) == RT_EOK)
    {
        LOG_I("Filesystem initialized!");
    }
    else
    {
        LOG_E("Format memory sysdata");
        /* 格式化文件系统 */
        dfs_mkfs("lfs", "sysdata");
        /* 挂载 littlefs */
        if (dfs_mount("sysdata", "/sys", "lfs", 0, NULL) == RT_EOK)
        {
            LOG_I("Filesystem initialized!");
        }
        else
        {
            LOG_E("Failed to initialize filesystem!");
        }
    }
    return RT_EOK;
}
INIT_COMPONENT_EXPORT(qspi_fal);