aboutsummaryrefslogtreecommitdiff
path: root/src/soc/intel/cannonlake/include/soc/smbus.h
blob: 60d155783eb53f6c1dd7876a935444a73d00df37 (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
/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2005 Yinghai Lu <yinghailu@gmail.com>
 * Copyright (C) 2009 coresystems GmbH
 * Copyright (C) 2014 Google Inc.
 * Copyright (C) 2017-2018 Intel Corporation.
 *
 * 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 _SOC_CANNONLAKE_SMBUS_H_
#define _SOC_CANNONLAKE_SMBUS_H_

/* TCO registers and fields live behind TCOBASE I/O bar in SMBus device. */
#define TCO1_STS			0x04
#define  TCO_TIMEOUT			(1 << 3)
#define TCO2_STS			0x06
#define  TCO_STS_SECOND_TO		(1 << 1)
#define  TCO_INTRD_DET			(1 << 0)
#define TCO1_CNT			0x08
#define  TCO_LOCK			(1 << 12)
#define  TCO_TMR_HLT			(1 << 11)
#define TCO2_CNT			0x0A
#define  TCO_INTRD_SEL_MASK		(3 << 1)
#define  TCO_INTRD_SEL_SMI		(1 << 2)
#define  TCO_INTRD_SEL_INT		(1 << 1)

/*
 * Default slave address value for PCH. This value is set to match default
 * value set by hardware. It is useful since PCH is able to respond even
 * before CPU is up. This is reset by RSMRST# but not by PLTRST#.
 */
#define SMBUS_SLAVE_ADDR		0x44

#endif