| /* |
| * 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_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_block_read(unsigned int smbus_base, u8 device, |
| unsigned int offset, unsigned int bytes, u8 *buf); |
| #endif |
