blob: e7241ff2bfc8289994c9069f5bc1e66911359f5f (
plain)
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
|
/* Copyright 2022 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <drivers/bbram.h>
#include <logging/log.h>
#include "system.h"
#include "system_chip.h"
LOG_MODULE_REGISTER(shim_xec_system, LOG_LEVEL_ERR);
static void chip_bbram_status_check(void)
{
const struct device *bbram_dev;
int res;
bbram_dev = DEVICE_DT_GET(DT_NODELABEL(bbram));
if (!device_is_ready(bbram_dev)) {
LOG_ERR("Error: device %s is not ready", bbram_dev->name);
return;
}
res = bbram_check_invalid(bbram_dev);
if (res != 0 && res != -ENOTSUP)
LOG_INF("VBAT power drop!");
}
void system_mpu_config(void)
{
/* Reseve for future use */
}
static int chip_system_init(const struct device *unused)
{
ARG_UNUSED(unused);
/*
* Check BBRAM power status.
*/
chip_bbram_status_check();
system_mpu_config();
return 0;
}
/*
* The priority should be lower than CROS_BBRAM_MCHP_INIT_PRIORITY.
*/
#if (CONFIG_CROS_SYSTEM_XEC_PRE_INIT_PRIORITY <= CONFIG_BBRAM_INIT_PRIORITY)
#error CONFIG_CROS_SYSTEM_XEC_PRE_INIT_PRIORITY must greater than \
CONFIG_BBRAM_INIT_PRIORITY
#endif
SYS_INIT(chip_system_init, PRE_KERNEL_1,
CONFIG_CROS_SYSTEM_XEC_PRE_INIT_PRIORITY);
|
