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
|
/*
* Copyright 2015-2016 Freescale Semiconductor, Inc.
* Copyright 2017 NXP
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* @file
* Contains all the functions to handle parsing and loading of PE firmware
* files.
*/
#include <pfe_eth/pfe_eth.h>
#include <pfe_eth/pfe_firmware.h>
#define PFE_FIRMEWARE_FIT_CNF_NAME "config@1"
static const void *pfe_fit_addr = (void *)CONFIG_SYS_LS_PFE_FW_ADDR;
/*
* PFE elf firmware loader.
* Loads an elf firmware image into a list of PE's (specified using a bitmask)
*
* @param pe_mask Mask of PE id's to load firmware to
* @param pfe_firmware Pointer to the firmware image
*
* @return 0 on success, a negative value on error
*/
static int pfe_load_elf(int pe_mask, uint8_t *pfe_firmware)
{
Elf32_Ehdr *elf_hdr = (Elf32_Ehdr *)pfe_firmware;
Elf32_Half sections = be16_to_cpu(elf_hdr->e_shnum);
Elf32_Shdr *shdr = (Elf32_Shdr *)(pfe_firmware +
be32_to_cpu(elf_hdr->e_shoff));
int id, section;
int ret;
debug("%s: no of sections: %d\n", __func__, sections);
/* Some sanity checks */
if (strncmp((char *)&elf_hdr->e_ident[EI_MAG0], ELFMAG, SELFMAG)) {
printf("%s: incorrect elf magic number\n", __func__);
return -1;
}
if (elf_hdr->e_ident[EI_CLASS] != ELFCLASS32) {
printf("%s: incorrect elf class(%x)\n", __func__,
elf_hdr->e_ident[EI_CLASS]);
return -1;
}
if (elf_hdr->e_ident[EI_DATA] != ELFDATA2MSB) {
printf("%s: incorrect elf data(%x)\n", __func__,
elf_hdr->e_ident[EI_DATA]);
return -1;
}
if (be16_to_cpu(elf_hdr->e_type) != ET_EXEC) {
printf("%s: incorrect elf file type(%x)\n", __func__,
be16_to_cpu(elf_hdr->e_type));
return -1;
}
for (section = 0; section < sections; section++, shdr++) {
if (!(be32_to_cpu(shdr->sh_flags) & (SHF_WRITE | SHF_ALLOC |
SHF_EXECINSTR)))
continue;
for (id = 0; id < MAX_PE; id++)
if (pe_mask & (1 << id)) {
ret = pe_load_elf_section(id,
pfe_firmware, shdr);
if (ret < 0)
goto err;
}
}
return 0;
err:
return ret;
}
/*
* Get PFE firmware from FIT image
*
* @param data pointer to PFE firmware
* @param size pointer to size of the firmware
* @param fw_name pfe firmware name, either class or tmu
*
* @return 0 on success, a negative value on error
*/
static int pfe_get_fw(const void **data,
size_t *size, char *fw_name)
{
int conf_node_off, fw_node_off;
char *conf_node_name = NULL;
char *desc;
int ret = 0;
conf_node_name = PFE_FIRMEWARE_FIT_CNF_NAME;
conf_node_off = fit_conf_get_node(pfe_fit_addr, conf_node_name);
if (conf_node_off < 0) {
printf("PFE Firmware: %s: no such config\n", conf_node_name);
return -ENOENT;
}
fw_node_off = fit_conf_get_prop_node(pfe_fit_addr, conf_node_off,
fw_name);
if (fw_node_off < 0) {
printf("PFE Firmware: No '%s' in config\n",
fw_name);
return -ENOLINK;
}
if (!(fit_image_verify(pfe_fit_addr, fw_node_off))) {
printf("PFE Firmware: Bad firmware image (bad CRC)\n");
return -EINVAL;
}
if (fit_image_get_data(pfe_fit_addr, fw_node_off, data, size)) {
printf("PFE Firmware: Can't get %s subimage data/size",
fw_name);
return -ENOENT;
}
ret = fit_get_desc(pfe_fit_addr, fw_node_off, &desc);
if (ret)
printf("PFE Firmware: Can't get description\n");
else
printf("%s\n", desc);
return ret;
}
/*
* Check PFE FIT image
*
* @return 0 on success, a negative value on error
*/
static int pfe_fit_check(void)
{
int ret = 0;
ret = fdt_check_header(pfe_fit_addr);
if (ret) {
printf("PFE Firmware: Bad firmware image (not a FIT image)\n");
return ret;
}
if (!fit_check_format(pfe_fit_addr)) {
printf("PFE Firmware: Bad firmware image (bad FIT header)\n");
ret = -1;
return ret;
}
return ret;
}
/*
* PFE firmware initialization.
* Loads different firmware files from FIT image.
* Initializes PE IMEM/DMEM and UTIL-PE DDR
* Initializes control path symbol addresses (by looking them up in the elf
* firmware files
* Takes PE's out of reset
*
* @return 0 on success, a negative value on error
*/
int pfe_firmware_init(void)
{
char *pfe_firmware_name;
const void *raw_image_addr;
size_t raw_image_size = 0;
uint8_t *pfe_firmware;
int ret = 0;
int fw_count;
ret = pfe_fit_check();
if (ret)
goto err;
for (fw_count = 0; fw_count < 2; fw_count++) {
if (fw_count == 0)
pfe_firmware_name = "class";
else if (fw_count == 1)
pfe_firmware_name = "tmu";
pfe_get_fw(&raw_image_addr, &raw_image_size, pfe_firmware_name);
pfe_firmware = malloc(raw_image_size);
memcpy((void *)pfe_firmware, (void *)raw_image_addr,
raw_image_size);
if (fw_count == 0)
ret = pfe_load_elf(CLASS_MASK, pfe_firmware);
else if (fw_count == 1)
ret = pfe_load_elf(TMU_MASK, pfe_firmware);
if (ret < 0) {
printf("%s: %s firmware load failed\n", __func__,
pfe_firmware_name);
goto err;
}
debug("%s: %s firmware loaded\n", __func__, pfe_firmware_name);
free(pfe_firmware);
}
tmu_enable(0xb);
class_enable();
gpi_enable(HGPI_BASE_ADDR);
err:
return ret;
}
/*
* PFE firmware cleanup
* Puts PE's in reset
*/
void pfe_firmware_exit(void)
{ debug("%s\n", __func__);
class_disable();
tmu_disable(0xf);
#if !defined(CONFIG_UTIL_PE_DISABLED)
util_disable();
#endif
hif_tx_disable();
hif_rx_disable();
}
|
