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
|
/*
* Copyright (C) ST-Ericsson SA 2010
*
* Author: Mikael Larsson <mikael.xt.larsson@stericsson.com> for ST-Ericsson.
*
* License terms: GNU General Public License (GPL), version 2.
*/
#include <common.h>
#include <malloc.h>
#include <part.h>
#include <mmc.h>
#include <asm/arch/ab8500.h>
#include <asm/arch/itp.h>
#include <asm/arch/cspsa_fp.h>
#define SEC_ROM_FORCE_CLEAN_MASK 0x0020
#define SEC_ROM_RET_OK 0x01
#define ISSWAPI_SECURE_LOAD 0x10000002
#define ISSWAPI_FLUSH_BOOT_CODE 0x11000003
#define IPL_ITEM_ID 0x02
typedef u32 (*boot_rom_bridge_func_t)(const u32 , const u32, const va_list);
static boot_rom_bridge_func_t hw_sec_rom_pub_bridge;
struct sec_rom_cut_desc {
u32 cutid_addr;
u32 cutid;
u32 bridge_func;
};
static const struct sec_rom_cut_desc cuttable[] = {
{ 0x9001DBF4, 0x008500B0, 0x90017300 },
{ 0x9001FFF4, 0x008500A1, 0x90018300 },
{ 0x9001FFF4, 0x005500A0, 0x90018300 },
{ 0x9001FFF4, 0x008500A0, 0x90018300 },
};
static u32 cspsa_key;
static u32 itp_call_secure_service(const u32 serviceid,
const u32 secureconfig,
...)
{
va_list ap;
u32 returnvalue;
va_start(ap, secureconfig);
returnvalue = hw_sec_rom_pub_bridge(serviceid,
secureconfig,
ap);
va_end(ap);
return returnvalue;
}
static int itp_init_bridge(void)
{
u8 cutnb = 0;
hw_sec_rom_pub_bridge = NULL;
while ((cutnb < ARRAY_SIZE(cuttable)) &&
(cuttable[cutnb].cutid != *(u32 *)(cuttable[cutnb].cutid_addr)))
cutnb++;
if (cutnb < ARRAY_SIZE(cuttable)) {
hw_sec_rom_pub_bridge =
(boot_rom_bridge_func_t)cuttable[cutnb].bridge_func;
return 0;
}
printf("itp_init_bridge: cutid not found\n");
return 1;
}
static int itp_flush_issw(void)
{
u32 ret;
ret = itp_call_secure_service(ISSWAPI_FLUSH_BOOT_CODE,
SEC_ROM_FORCE_CLEAN_MASK,
0,
0);
if (ret != SEC_ROM_RET_OK) {
printf("itp_flush_issw: ISSWAPI_FLUSH_BOOT_CODE: %d\n",
ret);
return 1;
}
return 0;
}
static int itp_load_ipl(block_dev_desc_t *block_dev)
{
u32 offset;
u32 size;
u32 loadaddr;
u32 returnvalue;
int ab8500_cutid;
debug("itp_load_ipl\n");
/* Check if IPL partition is present */
if (get_entry_info_toc(block_dev, ITP_TOC_IPL_NAME, &offset,
&size, &loadaddr)) {
printf("itp_load_ipl: ipl toc entry not present\n");
return 1;
}
/* Get CutID */
ab8500_cutid = ab8500_read(AB8500_MISC, AB8500_REV_REG);
returnvalue = itp_call_secure_service((u32)ISSWAPI_SECURE_LOAD,
SEC_ROM_FORCE_CLEAN_MASK,
IPL_ITEM_ID,
ab8500_cutid);
if (returnvalue != SEC_ROM_RET_OK) {
printf("itp_load_ipl: ISSWAPI_SECURE_LOAD: %d\n",
returnvalue);
return 1;
}
return 0;
}
static int itp_load_toc_entry(block_dev_desc_t *block_dev,
const char *partname,
u32 *loadaddress)
{
u32 n;
u32 offset;
u32 size;
debug("itp_load_toc_entry: Loading %s\n", partname);
if (get_entry_info_toc(block_dev, partname, &offset,
&size, loadaddress)) {
printf("itp_load_toc_entry: %s not present\n", partname);
return 1;
}
size = (size / block_dev->blksz) +
((size % block_dev->blksz) ? 1 : 0);
n = block_dev->block_read(block_dev->dev,
offset / block_dev->blksz,
size,
(void *) *loadaddress);
if (n != size) {
printf("itp_load_toc_entry: Failed to load %s!\n", partname);
return 1;
}
return 0;
}
int itp_read_config(block_dev_desc_t *block_dev)
{
if (cspsa_fp_read(block_dev,
ITP_CSPSA_KEY,
&cspsa_key)) {
printf("itp_read_config: config not present. "
"Using default values\n");
cspsa_key = (ITP_LOAD_MODEM | ITP_LOAD_KERNEL);
}
return 0;
}
int itp_is_itp_in_config(void)
{
return cspsa_key & ITP_LOAD_ITP;
}
/*
* itp_load_itp_and_modem - Loads itp and modem depending on config.
* If itp is loaded ok it will be executed and u-boot execution will stop
*/
int itp_load_itp_and_modem(block_dev_desc_t *block_dev)
{
int retval = 0;
u32 loadaddress;
debug("\nitp_load_itp_and_modem\n");
if (itp_init_bridge()) {
retval = 1;
goto exit;
}
if (cspsa_key & ITP_LOAD_MODEM) {
if (itp_load_toc_entry(block_dev,
ITP_TOC_MODEM_NAME,
&loadaddress)) {
retval = 1;
goto exit;
}
if (itp_load_ipl(block_dev)) {
retval = 1;
goto exit;
}
}
if (cspsa_key & ITP_LOAD_ITP) {
if (itp_load_toc_entry(block_dev,
ITP_TOC_ITP_NAME,
&loadaddress)) {
retval = 1;
goto exit;
}
}
exit:
/* Always Flush */
if (hw_sec_rom_pub_bridge != NULL)
itp_flush_issw();
if ((cspsa_key & ITP_LOAD_ITP) && !retval)
/* U-boot execution will end here */
((void (*)(void))loadaddress)();
/* Return on error */
return retval;
}
|
