blob: 43d1b4d6ae876418b3641547148743bc0c1fcf75 (
plain) (
blame)
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
|
/* SPDX-License-Identifier: GPL-3.0-or-later */
/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
/**
* @file power.c
* riscv64 implementation of arch-specific power handling.
*/
#include <kmi/power.h>
#include "sbi.h"
/**
* Shutdown without any particular reason. Only reason kernel is likely to
* need.
*/
#define SBI_NO_REASON 0
/** @name Shutdown types. */
/** @{ */
/** Regular shutdown. */
#define SBI_SHUTDOWN 0
/** Cold reboot. */
#define SBI_COLD_REBOOT 1
/** Warm reboot. */
#define SBI_WARM_REBOOT 2
/** @} */
stat_t poweroff(enum poweroff_type type)
{
/** \todo this only shuts down the cpu itself, but may leave the SOC
* active. Should read from fdt poweroff and syscon-poweroff etc */
switch (type) {
case SHUTDOWN:
sbi_system_reset(SBI_SHUTDOWN, SBI_NO_REASON);
return ERR_MISC;
case COLD_REBOOT:
sbi_system_reset(SBI_COLD_REBOOT, SBI_NO_REASON);
return ERR_MISC;
case WARM_REBOOT:
sbi_system_reset(SBI_WARM_REBOOT, SBI_NO_REASON);
return ERR_MISC;
};
return ERR_INVAL;
}
|
