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
251
252
253
254
255
256
257
258
259
260
261
|
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
/*
* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
*/
#include <image.h>
#include "imagetool.h"
/* magic ='S' 'T' 'M' 0x32 */
#define HEADER_MAGIC be32_to_cpu(0x53544D32)
#define VER_MAJOR 2
#define VER_MINOR 1
#define VER_VARIANT 0
#define HEADER_VERSION_V1 0x1
#define HEADER_VERSION_V2 0x2
/* default option : bit0 => no signature */
#define HEADER_DEFAULT_OPTION (cpu_to_le32(0x00000001))
/* default binary type for U-Boot */
#define HEADER_TYPE_UBOOT (cpu_to_le32(0x00000000))
#define PADDING_HEADER_MAGIC (cpu_to_le32(0xFFFF5453))
#define PADDING_HEADER_FLAG (1ULL << 31)
#define PADDING_HEADER_LENGTH 0x180
struct stm32_header_v1 {
uint32_t magic_number;
uint8_t image_signature[64];
uint32_t image_checksum;
uint8_t header_version[4];
uint32_t image_length;
uint32_t image_entry_point;
uint32_t reserved1;
uint32_t load_address;
uint32_t reserved2;
uint32_t version_number;
/* V1.0 specific content */
uint32_t option_flags;
uint32_t ecdsa_algorithm;
uint8_t ecdsa_public_key[64];
uint8_t padding[83];
uint8_t binary_type;
};
struct stm32_header_v2 {
uint32_t magic_number;
uint8_t image_signature[64];
uint32_t image_checksum;
uint8_t header_version[4];
uint32_t image_length;
uint32_t image_entry_point;
uint32_t reserved1;
uint32_t load_address;
uint32_t reserved2;
uint32_t version_number;
/* V2.0 specific content */
uint32_t extension_flags;
uint32_t extension_headers_length;
uint32_t binary_type;
uint8_t padding[16];
uint32_t extension_header_type;
uint32_t extension_header_length;
uint8_t extension_padding[376];
};
static struct stm32_header_v1 stm32image_header_v1;
static struct stm32_header_v2 stm32image_header_v2;
static uint32_t stm32image_checksum(void *start, uint32_t len,
uint32_t header_size)
{
uint32_t csum = 0;
uint8_t *p;
if (len < header_size) {
return 0;
}
p = (unsigned char *)start + header_size;
len -= header_size;
while (len > 0) {
csum += *p;
p++;
len--;
}
return csum;
}
static int stm32image_check_image_types_v1(uint8_t type)
{
if (type == IH_TYPE_STM32IMAGE)
return EXIT_SUCCESS;
return EXIT_FAILURE;
}
static int stm32image_check_image_types_v2(uint8_t type)
{
if (type == IH_TYPE_STM32IMAGE_V2)
return EXIT_SUCCESS;
return EXIT_FAILURE;
}
static int stm32image_verify_header_v1(unsigned char *ptr, int image_size,
struct image_tool_params *params)
{
struct stm32_header_v1 *stm32hdr = (struct stm32_header_v1 *)ptr;
int i;
if (image_size < sizeof(struct stm32_header_v1))
return -1;
if (stm32hdr->magic_number != HEADER_MAGIC)
return -1;
if (stm32hdr->header_version[VER_MAJOR] != HEADER_VERSION_V1)
return -1;
if (stm32hdr->reserved1 || stm32hdr->reserved2)
return -1;
for (i = 0; i < (sizeof(stm32hdr->padding) / 4); i++) {
if (stm32hdr->padding[i] != 0)
return -1;
}
return 0;
}
static int stm32image_verify_header_v2(unsigned char *ptr, int image_size,
struct image_tool_params *params)
{
struct stm32_header_v2 *stm32hdr = (struct stm32_header_v2 *)ptr;
int i;
if (image_size < sizeof(struct stm32_header_v2))
return -1;
if (stm32hdr->magic_number != HEADER_MAGIC)
return -1;
if (stm32hdr->header_version[VER_MAJOR] != HEADER_VERSION_V2)
return -1;
if (stm32hdr->reserved1 || stm32hdr->reserved2)
return -1;
for (i = 0; i < (sizeof(stm32hdr->padding) / 4); i++) {
if (stm32hdr->padding[i] != 0)
return -1;
}
return 0;
}
static void stm32image_print_header(const void *ptr, struct image_tool_params *params)
{
struct stm32_header_v1 *stm32hdr_v1 = (struct stm32_header_v1 *)ptr;
struct stm32_header_v2 *stm32hdr_v2 = (struct stm32_header_v2 *)ptr;
printf("Image Type : STMicroelectronics STM32 V%d.%d\n",
stm32hdr_v1->header_version[VER_MAJOR],
stm32hdr_v1->header_version[VER_MINOR]);
printf("Image Size : %lu bytes\n",
(unsigned long)le32_to_cpu(stm32hdr_v1->image_length));
printf("Image Load : 0x%08x\n",
le32_to_cpu(stm32hdr_v1->load_address));
printf("Entry Point : 0x%08x\n",
le32_to_cpu(stm32hdr_v1->image_entry_point));
printf("Checksum : 0x%08x\n",
le32_to_cpu(stm32hdr_v1->image_checksum));
switch (stm32hdr_v1->header_version[VER_MAJOR]) {
case HEADER_VERSION_V1:
printf("Option : 0x%08x\n",
le32_to_cpu(stm32hdr_v1->option_flags));
printf("BinaryType : 0x%08x\n",
le32_to_cpu(stm32hdr_v1->binary_type));
break;
case HEADER_VERSION_V2:
printf("Extension : 0x%08x\n",
le32_to_cpu(stm32hdr_v2->extension_flags));
break;
default:
printf("Incorrect header version\n");
}
}
static void stm32image_set_header_v1(void *ptr, struct stat *sbuf, int ifd,
struct image_tool_params *params)
{
struct stm32_header_v1 *stm32hdr = (struct stm32_header_v1 *)ptr;
stm32hdr->magic_number = HEADER_MAGIC;
stm32hdr->version_number = cpu_to_le32(0);
stm32hdr->header_version[VER_MAJOR] = HEADER_VERSION_V1;
stm32hdr->option_flags = HEADER_DEFAULT_OPTION;
stm32hdr->ecdsa_algorithm = cpu_to_le32(1);
stm32hdr->binary_type = HEADER_TYPE_UBOOT;
stm32hdr->load_address = cpu_to_le32(params->addr);
stm32hdr->image_entry_point = cpu_to_le32(params->ep);
stm32hdr->image_length = cpu_to_le32((uint32_t)sbuf->st_size -
sizeof(*stm32hdr));
stm32hdr->image_checksum =
cpu_to_le32(stm32image_checksum(ptr, sbuf->st_size,
sizeof(*stm32hdr)));
}
static void stm32image_set_header_v2(void *ptr, struct stat *sbuf, int ifd,
struct image_tool_params *params)
{
struct stm32_header_v2 *stm32hdr = (struct stm32_header_v2 *)ptr;
stm32hdr->magic_number = HEADER_MAGIC;
stm32hdr->version_number = cpu_to_le32(0);
stm32hdr->header_version[VER_MAJOR] = HEADER_VERSION_V2;
stm32hdr->extension_flags =
cpu_to_le32(PADDING_HEADER_FLAG);
stm32hdr->extension_headers_length =
cpu_to_le32(PADDING_HEADER_LENGTH);
stm32hdr->extension_header_type =
cpu_to_le32(PADDING_HEADER_MAGIC);
stm32hdr->extension_header_length =
cpu_to_le32(PADDING_HEADER_LENGTH);
stm32hdr->load_address = cpu_to_le32(params->addr);
stm32hdr->image_entry_point = cpu_to_le32(params->ep);
stm32hdr->image_length = cpu_to_le32((uint32_t)sbuf->st_size -
sizeof(*stm32hdr));
stm32hdr->image_checksum =
cpu_to_le32(stm32image_checksum(ptr, sbuf->st_size,
sizeof(*stm32hdr)));
}
/*
* stm32image parameters
*/
U_BOOT_IMAGE_TYPE(
stm32image,
"STMicroelectronics STM32MP Image support",
sizeof(struct stm32_header_v1),
(void *)&stm32image_header_v1,
NULL,
stm32image_verify_header_v1,
stm32image_print_header,
stm32image_set_header_v1,
NULL,
stm32image_check_image_types_v1,
NULL,
NULL
);
U_BOOT_IMAGE_TYPE(
stm32imagev2,
"STMicroelectronics STM32MP Image V2.0 support",
sizeof(struct stm32_header_v2),
(void *)&stm32image_header_v2,
NULL,
stm32image_verify_header_v2,
stm32image_print_header,
stm32image_set_header_v2,
NULL,
stm32image_check_image_types_v2,
NULL,
NULL
);
|
