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
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2005 Yinghai Lu <yinghailu@gmail.com>
* Copyright (C) 2009 coresystems GmbH
* Copyright (C) 2013 Vladimir Serbinenko
*
* 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 INTEL_COMMON_SMBUS_H
#define INTEL_COMMON_SMBUS_H
/* SMBus register offsets. */
#define SMBHSTSTAT 0x0
#define SMBHSTCTL 0x2
#define SMBHSTCMD 0x3
#define SMBXMITADD 0x4
#define SMBHSTDAT0 0x5
#define SMBHSTDAT1 0x6
#define SMBBLKDAT 0x7
#define SMBTRNSADD 0x9
#define SMBSLVDATA 0xa
#define SMLINK_PIN_CTL 0xe
#define SMBUS_PIN_CTL 0xf
#define SMBSLVCMD 0x11
int do_smbus_read_byte(unsigned int smbus_base, u8 device,
unsigned int address);
int do_smbus_write_byte(unsigned int smbus_base, u8 device,
unsigned int address, unsigned int data);
int do_smbus_read_word(unsigned int smbus_base, u8 device,
unsigned int address);
int do_smbus_write_word(unsigned int smbus_base, u8 device,
unsigned int address, unsigned int data);
int do_smbus_block_read(unsigned int smbus_base, u8 device,
u8 cmd, unsigned int max_bytes, u8 *buf);
int do_smbus_block_write(unsigned int smbus_base, u8 device,
u8 cmd, unsigned int bytes, const u8 *buf);
/* Only since ICH5 */
int do_i2c_eeprom_read(unsigned int smbus_base, u8 device,
unsigned int offset, unsigned int bytes, u8 *buf);
int do_i2c_block_write(unsigned int smbus_base, u8 device,
unsigned int bytes, u8 *buf);
#endif
|
