blob: d747ed00a7f68aeae61484ffadaf84f5571a4b02 (
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
57
58
|
// SPDX-License-Identifier: GPL-2.0
/*
* (C) Copyright 2016 Google, Inc
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <log.h>
#include <sysreset.h>
#include <wdt.h>
#include <asm/io.h>
#include <asm/arch/wdt.h>
#include <linux/err.h>
#include <hang.h>
static int ast_sysreset_request(struct udevice *dev, enum sysreset_t type)
{
struct udevice *wdt;
u32 reset_mode;
int ret = uclass_first_device(UCLASS_WDT, &wdt);
if (ret)
return ret;
switch (type) {
case SYSRESET_WARM:
reset_mode = WDT_CTRL_RESET_CPU;
break;
case SYSRESET_COLD:
reset_mode = WDT_CTRL_RESET_CHIP;
break;
default:
return -EPROTONOSUPPORT;
}
#if !defined(CONFIG_SPL_BUILD)
ret = wdt_expire_now(wdt, reset_mode);
if (ret) {
debug("Sysreset failed: %d", ret);
return ret;
}
#else
hang();
#endif
return -EINPROGRESS;
}
static struct sysreset_ops ast_sysreset = {
.request = ast_sysreset_request,
};
U_BOOT_DRIVER(sysreset_ast) = {
.name = "ast_sysreset",
.id = UCLASS_SYSRESET,
.ops = &ast_sysreset,
};
|
