1 /*
2 * Copyright (c) 2006-2022, RT-Thread Development Team
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 * 2018-11-27 zylx first version
9 * 2022-03-16 Miaowulue add dfs mount
10 */
11
12 #include <board.h>
13 #include <drv_qspi.h>
14 #include <rtdevice.h>
15 #include <rthw.h>
16 #include <finsh.h>
17 #include <dfs_elm.h>
18 #include <dfs_fs.h>
19
20 #ifdef BSP_USING_QSPI_FLASH
21
22 #include "dev_spi_flash.h"
23 #include "dev_spi_flash_sfud.h"
24
w25qxx_read_status_register2(struct rt_qspi_device * device)25 char w25qxx_read_status_register2(struct rt_qspi_device *device)
26 {
27 /* 0x35 read status register2 */
28 char instruction = 0x35, status;
29
30 rt_qspi_send_then_recv(device, &instruction, 1, &status, 1);
31
32 return status;
33 }
34
w25qxx_write_enable(struct rt_qspi_device * device)35 void w25qxx_write_enable(struct rt_qspi_device *device)
36 {
37 /* 0x06 write enable */
38 char instruction = 0x06;
39
40 rt_qspi_send(device, &instruction, 1);
41 }
42
w25qxx_enter_qspi_mode(struct rt_qspi_device * device)43 void w25qxx_enter_qspi_mode(struct rt_qspi_device *device)
44 {
45 char status = 0;
46 /* 0x38 enter qspi mode */
47 char instruction = 0x38;
48 char write_status2_buf[2] = {0};
49
50 /* 0x31 write status register2 */
51 write_status2_buf[0] = 0x31;
52
53 status = w25qxx_read_status_register2(device);
54 if (!(status & 0x02))
55 {
56 status |= 1 << 1;
57 w25qxx_write_enable(device);
58 write_status2_buf[1] = status;
59 rt_qspi_send(device, &write_status2_buf, 2);
60 rt_qspi_send(device, &instruction, 1);
61 rt_kprintf("flash already enter qspi mode\n");
62 rt_thread_mdelay(10);
63 }
64 }
65
rt_hw_qspi_flash_with_sfud_init(void)66 static int rt_hw_qspi_flash_with_sfud_init(void)
67 {
68 rt_hw_qspi_device_attach("qspi1", "qspi10", RT_NULL, 4, w25qxx_enter_qspi_mode, RT_NULL);
69
70 /* init W25Q256 */
71 if (RT_NULL == rt_sfud_flash_probe("W25Q256", "qspi10"))
72 {
73 return -RT_ERROR;
74 }
75
76 return RT_EOK;
77 }
78 INIT_DEVICE_EXPORT(rt_hw_qspi_flash_with_sfud_init);
79
mnt_qspi_flash_init(void)80 static int mnt_qspi_flash_init(void)
81 {
82 if (dfs_mount("W25Q256", "/", "elm", 0, 0) == RT_EOK)
83 {
84 rt_kprintf("Mount spi flash successfully!\n");
85 return RT_EOK;
86 }
87 else
88 {
89 rt_kprintf("Mount spi flash fail!\n");
90 return -RT_ERROR;
91 }
92 }
93 INIT_APP_EXPORT(mnt_qspi_flash_init);
94
95 #endif/* BSP_USING_QSPI_FLASH */
96