1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
|
#include "quadspi.h"
#include "main.h"
#include "gpio.h"
#define LOADER_OK 0x1
#define LOADER_FAIL 0x0
extern void SystemClock_Config(void);
/**
* @brief System initialization.
* @param None
* @retval LOADER_OK = 1 : Operation succeeded
* @retval LOADER_FAIL = 0 : Operation failed
*/
__attribute__((used)) int Init(void) {
*(uint32_t*)0xE000EDF0 = 0xA05F0000; //enable interrupts in debug
SystemInit();
/* ADAPTATION TO THE DEVICE
*
* change VTOR setting for H7 device
* SCB->VTOR = 0x24000000 | 0x200;
*
* change VTOR setting for other devices
* SCB->VTOR = 0x20000000 | 0x200;
*
* */
SCB->VTOR = 0x24000000 | 0x200;
__set_PRIMASK(0); //enable interrupts
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
__HAL_RCC_QSPI_FORCE_RESET(); //completely reset peripheral
__HAL_RCC_QSPI_RELEASE_RESET();
if (CSP_QUADSPI_Init() != HAL_OK) {
__set_PRIMASK(1); //disable interrupts
return LOADER_FAIL;
}
if (CSP_QSPI_EnableMemoryMappedMode() != HAL_OK) {
__set_PRIMASK(1); //disable interrupts
return LOADER_FAIL;
}
/*Trigger read access before HAL_QSPI_Abort() otherwise abort functionality gets stuck*/
uint32_t a = *(uint32_t*) 0x90000000;
a++;
__set_PRIMASK(1); //disable interrupts
return LOADER_OK;
}
/**
* @brief Program memory.
* @param Address: page address
* @param Size : size of data
* @param buffer : pointer to data buffer
* @retval LOADER_OK = 1 : Operation succeeded
* @retval LOADER_FAIL = 0 : Operation failed
*/
__attribute__((used)) int Write(uint32_t Address, uint32_t Size, uint8_t* buffer) {
__set_PRIMASK(0); //enable interrupts
if (HAL_QSPI_Abort(&hqspi) != HAL_OK) {
__set_PRIMASK(1); //disable interrupts
return LOADER_FAIL;
}
if (CSP_QSPI_WriteMemory((uint8_t*) buffer, (Address & (0x0fffffff)), Size) != HAL_OK) {
__set_PRIMASK(1); //disable interrupts
return LOADER_FAIL;
}
__set_PRIMASK(1); //disable interrupts
return LOADER_OK;
}
/**
* @brief Sector erase.
* @param EraseStartAddress : erase start address
* @param EraseEndAddress : erase end address
* @retval LOADER_OK = 1 : Operation succeeded
* @retval LOADER_FAIL = 0 : Operation failed
*/
__attribute__((used)) int SectorErase(uint32_t EraseStartAddress, uint32_t EraseEndAddress) {
__set_PRIMASK(0); //enable interrupts
if (HAL_QSPI_Abort(&hqspi) != HAL_OK) {
__set_PRIMASK(1); //disable interrupts
return LOADER_FAIL;
}
if (CSP_QSPI_EraseSector(EraseStartAddress, EraseEndAddress) != HAL_OK) {
__set_PRIMASK(1); //disable interrupts
return LOADER_FAIL;
}
__set_PRIMASK(1); //disable interrupts
return LOADER_OK;
}
/**
* Description :
* Mass erase of external flash area
* Optional command - delete in case usage of mass erase is not planed
* Inputs :
* none
* outputs :
* none
* Note: Optional for all types of device
*/
__attribute__((used)) int MassErase(void) {
__set_PRIMASK(0); //enable interrupts
if (HAL_QSPI_Abort(&hqspi) != HAL_OK) {
__set_PRIMASK(1); //disable interrupts
return LOADER_FAIL;
}
if (CSP_QSPI_Erase_Chip() != HAL_OK) {
__set_PRIMASK(1); //disable interrupts
return LOADER_FAIL;
}
__set_PRIMASK(1); //disable interrupts
return LOADER_OK;
}
/**
* Description :
* Calculates checksum value of the memory zone
* Inputs :
* StartAddress : Flash start address
* Size : Size (in WORD)
* InitVal : Initial CRC value
* outputs :
* R0 : Checksum value
* Note: Optional for all types of device
*/
__attribute__((used)) uint32_t CheckSum(uint32_t StartAddress, uint32_t Size, uint32_t InitVal) {
uint8_t missalignementAddress = StartAddress % 4;
uint8_t missalignementSize = Size;
int cnt;
uint32_t Val;
StartAddress -= StartAddress % 4;
Size += (Size % 4 == 0) ? 0 : 4 - (Size % 4);
for (cnt = 0; cnt < Size; cnt += 4) {
Val = *(uint32_t*) StartAddress;
if (missalignementAddress) {
switch (missalignementAddress) {
case 1:
InitVal += (uint8_t) (Val >> 8 & 0xff);
InitVal += (uint8_t) (Val >> 16 & 0xff);
InitVal += (uint8_t) (Val >> 24 & 0xff);
missalignementAddress -= 1;
break;
case 2:
InitVal += (uint8_t) (Val >> 16 & 0xff);
InitVal += (uint8_t) (Val >> 24 & 0xff);
missalignementAddress -= 2;
break;
case 3:
InitVal += (uint8_t) (Val >> 24 & 0xff);
missalignementAddress -= 3;
break;
}
} else if ((Size - missalignementSize) % 4 && (Size - cnt) <= 4) {
switch (Size - missalignementSize) {
case 1:
InitVal += (uint8_t) Val;
InitVal += (uint8_t) (Val >> 8 & 0xff);
InitVal += (uint8_t) (Val >> 16 & 0xff);
missalignementSize -= 1;
break;
case 2:
InitVal += (uint8_t) Val;
InitVal += (uint8_t) (Val >> 8 & 0xff);
missalignementSize -= 2;
break;
case 3:
InitVal += (uint8_t) Val;
missalignementSize -= 3;
break;
}
} else {
InitVal += (uint8_t) Val;
InitVal += (uint8_t) (Val >> 8 & 0xff);
InitVal += (uint8_t) (Val >> 16 & 0xff);
InitVal += (uint8_t) (Val >> 24 & 0xff);
}
StartAddress += 4;
}
return (InitVal);
}
/**
* Description :
* Verify flash memory with RAM buffer and calculates checksum value of
* the programmed memory
* Inputs :
* FlashAddr : Flash address
* RAMBufferAddr : RAM buffer address
* Size : Size (in WORD)
* InitVal : Initial CRC value
* outputs :
* R0 : Operation failed (address of failure)
* R1 : Checksum value
* Note: Optional for all types of device
*/
__attribute__((used)) uint64_t Verify(uint32_t MemoryAddr, uint32_t RAMBufferAddr, uint32_t Size, uint32_t missalignement) {
__set_PRIMASK(0); //enable interrupts
uint32_t VerifiedData = 0, InitVal = 0;
uint64_t checksum;
Size *= 4;
if (CSP_QSPI_EnableMemoryMappedMode() != HAL_OK) {
__set_PRIMASK(1); //disable interrupts
return LOADER_FAIL;
}
checksum = CheckSum((uint32_t) MemoryAddr + (missalignement & 0xf),
Size - ((missalignement >> 16) & 0xF), InitVal);
while (Size > VerifiedData) {
if (*(uint8_t*) MemoryAddr++
!= *((uint8_t*) RAMBufferAddr + VerifiedData)) {
__set_PRIMASK(1); //disable interrupts
return ((checksum << 32) + (MemoryAddr + VerifiedData));
}
VerifiedData++;
}
__set_PRIMASK(1); //disable interrupts
return (checksum << 32);
}
|
