blob: 4a36207623e9b87fd307d6d3a3a2fd4f3abf6615 (
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
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _BAYTRAIL_RESET_H_
#define _BAYTRAIL_RESET_H_
#include <reset.h>
/* Bay Trail has the following types of resets:
* - Soft reset (INIT# to cpu) - write 0x1 to I/O 0x92
* - Soft reset (INIT# to cpu)- write 0x4 to I/0 0xcf9
* - Cold reset (S0->S5->S0) - write 0xe to I/0 0xcf9
* - Warm reset (PMC_PLTRST# assertion) - write 0x6 to I/O 0xcf9
* - Global reset (S0->S5->S0 with TXE reset) - write 0x6 or 0xe to 0xcf9 but
* with ETR[20] set.
*/
void cold_reset(void);
void warm_reset(void);
#endif /* _BAYTRAIL_RESET_H_ */
|
