1 /*
2 * Copyright (c) 2006-2023, RT-Thread Development Team
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 * 2023-10-19 ChuShicheng first version
9 */
10 #include "drv_flash.h"
11 #include "board.h"
12 #include "hardware/flash.h"
13
14 #ifdef BSP_USING_ON_CHIP_FLASH
15
16 #define DBG_LEVEL DBG_LOG
17 #define LOG_TAG "DRV.FLASH"
18 #include <rtdbg.h>
19
20 #define FLASH_SIZE 2 * 1024 * 1024
21 #define FLASH_START_ADRESS 0x0000000
22
_flash_read(rt_uint32_t addr,rt_uint8_t * buf,size_t size)23 int _flash_read(rt_uint32_t addr, rt_uint8_t *buf, size_t size)
24 {
25 rt_memcpy(buf, (const void *)(XIP_BASE + addr), size);
26
27 return size;
28 }
29
_flash_write(rt_uint32_t addr,const rt_uint8_t * buf,size_t size)30 int _flash_write(rt_uint32_t addr, const rt_uint8_t *buf, size_t size)
31 {
32 if (addr % FLASH_PAGE_SIZE != 0)
33 {
34 LOG_E("write addr must be %d-byte alignment", FLASH_PAGE_SIZE);
35 return -RT_EINVAL;
36 }
37
38 if (size % FLASH_PAGE_SIZE != 0)
39 {
40 LOG_E("write size must be %d-byte alignment", FLASH_PAGE_SIZE);
41 return -RT_EINVAL;
42 }
43
44 flash_range_program(addr, buf, size);
45
46 return size;
47 }
48
_flash_erase(rt_uint32_t addr,size_t size)49 int _flash_erase(rt_uint32_t addr, size_t size)
50 {
51 if(size % FLASH_SECTOR_SIZE)
52 {
53 LOG_E("erase size must be %d-byte alignment", FLASH_SECTOR_SIZE);
54 }
55
56 flash_range_erase(addr, size);
57
58 return size;
59 }
60
61 #ifdef RT_USING_FAL
62
63 #include "fal.h"
64
65 static int fal_flash_read(long offset, rt_uint8_t *buf, size_t size);
66 static int fal_flash_write(long offset, const rt_uint8_t *buf, size_t size);
67 static int fal_flash_erase(long offset, size_t size);
68
69 const struct fal_flash_dev _onchip_flash =
70 {
71 "onchip_flash",
72 FLASH_START_ADRESS,
73 FLASH_SIZE,
74 FLASH_PAGE_SIZE,
75 {
76 NULL,
77 fal_flash_read,
78 fal_flash_write,
79 fal_flash_erase
80 }
81 };
82
fal_flash_read(long offset,rt_uint8_t * buf,size_t size)83 static int fal_flash_read(long offset, rt_uint8_t *buf, size_t size)
84 {
85 return _flash_read(_onchip_flash.addr + offset, buf, size);
86 }
87
fal_flash_write(long offset,const rt_uint8_t * buf,size_t size)88 static int fal_flash_write(long offset, const rt_uint8_t *buf, size_t size)
89 {
90 return _flash_write(_onchip_flash.addr + offset, buf, size);
91 }
92
fal_flash_erase(long offset,size_t size)93 static int fal_flash_erase(long offset, size_t size)
94 {
95 return _flash_erase(_onchip_flash.addr + offset, size);
96 }
97
rt_hw_on_chip_flash_init(void)98 static int rt_hw_on_chip_flash_init(void)
99 {
100 fal_init();
101 return RT_EOK;
102 }
103 INIT_COMPONENT_EXPORT(rt_hw_on_chip_flash_init);
104
105 #endif /* RT_USING_FAL */
106
107 #endif /* BSP_USING_ON_CHIP_FLASH */
108