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
|
/* Copyright 2013-2016 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <skiboot.h>
#include <opal.h>
#include <console.h>
#include <timebase.h>
#include <cpu.h>
#include <chip.h>
#include <xscom.h>
#include <errorlog.h>
#include <bt.h>
#include <nvram.h>
bool manufacturing_mode = false;
struct platform platform;
const struct bmc_platform *bmc_platform = NULL;
DEFINE_LOG_ENTRY(OPAL_RC_ABNORMAL_REBOOT, OPAL_PLATFORM_ERR_EVT, OPAL_CEC,
OPAL_CEC_HARDWARE, OPAL_PREDICTIVE_ERR_FAULT_RECTIFY_REBOOT,
OPAL_ABNORMAL_POWER_OFF);
/*
* Various wrappers for platform functions
*/
static int64_t opal_cec_power_down(uint64_t request)
{
prlog(PR_NOTICE, "OPAL: Shutdown request type 0x%llx...\n", request);
console_complete_flush();
if (platform.cec_power_down)
return platform.cec_power_down(request);
return OPAL_SUCCESS;
}
opal_call(OPAL_CEC_POWER_DOWN, opal_cec_power_down, 1);
static int64_t opal_cec_reboot(void)
{
prlog(PR_NOTICE, "OPAL: Reboot request...\n");
console_complete_flush();
/* Try a fast reset first, if enabled */
if (nvram_query_eq("experimental-fast-reset","feeling-lucky"))
fast_reboot();
if (platform.cec_reboot)
return platform.cec_reboot();
return OPAL_SUCCESS;
}
opal_call(OPAL_CEC_REBOOT, opal_cec_reboot, 0);
static int64_t opal_cec_reboot2(uint32_t reboot_type, char *diag)
{
struct errorlog *buf;
switch (reboot_type) {
case OPAL_REBOOT_NORMAL:
return opal_cec_reboot();
case OPAL_REBOOT_PLATFORM_ERROR:
prlog(PR_EMERG,
"OPAL: Reboot requested due to Platform error.");
buf = opal_elog_create(&e_info(OPAL_RC_ABNORMAL_REBOOT), 0);
if (buf) {
log_append_msg(buf,
"OPAL: Reboot requested due to Platform error.");
if (diag) {
/* Add user section "DESC" */
log_add_section(buf, 0x44455350);
log_append_data(buf, diag, strlen(diag));
log_commit(buf);
}
} else {
prerror("OPAL: failed to log an error\n");
}
disable_fast_reboot("Reboot due to Platform Error");
return xscom_trigger_xstop();
case OPAL_REBOOT_FULL_IPL:
disable_fast_reboot("full IPL reboot requested");
return opal_cec_reboot();
default:
prlog(PR_NOTICE, "OPAL: Unsupported reboot request %d\n", reboot_type);
return OPAL_UNSUPPORTED;
break;
}
return OPAL_SUCCESS;
}
opal_call(OPAL_CEC_REBOOT2, opal_cec_reboot2, 2);
static bool generic_platform_probe(void)
{
uart_init();
return true;
}
static void generic_platform_init(void)
{
if (uart_enabled())
set_opal_console(&uart_opal_con);
/* Enable a BT interface if we find one too */
bt_init();
/* Fake a real time clock */
fake_rtc_init();
}
static int64_t generic_cec_power_down(uint64_t request __unused)
{
return OPAL_UNSUPPORTED;
}
static struct bmc_platform generic_bmc = {
.name = "generic",
};
static struct platform generic_platform = {
.name = "generic",
.bmc = &generic_bmc,
.probe = generic_platform_probe,
.init = generic_platform_init,
.nvram_info = fake_nvram_info,
.nvram_start_read = fake_nvram_start_read,
.nvram_write = fake_nvram_write,
.cec_power_down = generic_cec_power_down,
};
void set_bmc_platform(const struct bmc_platform *bmc)
{
if (bmc)
prlog(PR_NOTICE, "PLAT: Detected BMC platform %s\n", bmc->name);
bmc_platform = bmc;
}
void probe_platform(void)
{
struct platform *platforms = &__platforms_start;
unsigned int i;
/* Detect Manufacturing mode */
if (dt_find_property(dt_root, "ibm,manufacturing-mode")) {
/**
* @fwts-label ManufacturingMode
* @fwts-advice You are running in manufacturing mode.
* This mode should only be enabled in a factory during
* manufacturing.
*/
prlog(PR_NOTICE, "PLAT: Manufacturing mode ON\n");
manufacturing_mode = true;
}
for (i = 0; &platforms[i] < &__platforms_end; i++) {
if (platforms[i].probe && platforms[i].probe()) {
platform = platforms[i];
break;
}
}
if (!platform.name) {
platform = generic_platform;
if (platform.probe)
platform.probe();
}
prlog(PR_NOTICE, "PLAT: Detected %s platform\n", platform.name);
set_bmc_platform(platform.bmc);
}
int start_preload_resource(enum resource_id id, uint32_t subid,
void *buf, size_t *len)
{
if (!platform.start_preload_resource)
return OPAL_UNSUPPORTED;
return platform.start_preload_resource(id, subid, buf, len);
}
int resource_loaded(enum resource_id id, uint32_t idx)
{
if (!platform.resource_loaded)
return OPAL_SUCCESS;
return platform.resource_loaded(id, idx);
}
int wait_for_resource_loaded(enum resource_id id, uint32_t idx)
{
int r = resource_loaded(id, idx);
int waited = 0;
while(r == OPAL_BUSY) {
opal_run_pollers();
r = resource_loaded(id, idx);
if (r != OPAL_BUSY)
break;
time_wait_ms_nopoll(5);
waited+=5;
}
prlog(PR_TRACE, "PLATFORM: wait_for_resource_loaded %x/%x %u ms\n",
id, idx, waited);
return r;
}
|
