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
|
/* Copyright 2013-2014 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>
struct platform platform;
/*
* Various wrappers for platform functions
*/
static int64_t opal_cec_power_down(uint64_t request)
{
printf("OPAL: Shutdown request type 0x%llx...\n", request);
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)
{
printf("OPAL: Reboot request...\n");
#ifdef ENABLE_FAST_RESET
/* Try a fast reset first */
fast_reset();
#endif
if (platform.cec_reboot)
return platform.cec_reboot();
return OPAL_SUCCESS;
}
opal_call(OPAL_CEC_REBOOT, opal_cec_reboot, 0);
static void generic_platform_init(void)
{
force_dummy_console();
fake_rtc_init();
}
static int64_t generic_cec_power_down(uint64_t request __unused)
{
if (chip_quirk(QUIRK_MAMBO_CALLOUTS))
mambo_sim_exit();
return OPAL_UNSUPPORTED;
}
static struct platform generic_platform = {
.name = "generic",
.init = generic_platform_init,
.cec_power_down = generic_cec_power_down,
};
void probe_platform(void)
{
struct platform *platforms = &__platforms_start;
unsigned int i;
platform = generic_platform;
for (i = 0; &platforms[i] < &__platforms_end; i++) {
if (platforms[i].probe && platforms[i].probe()) {
platform = platforms[i];
break;
}
}
printf("PLAT: Detected %s platform\n", platform.name);
}
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);
while(r == OPAL_BUSY) {
opal_run_pollers();
time_wait_ms_nopoll(5);
r = resource_loaded(id, idx);
}
return r;
}
|
