| /* |
| * 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. |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef _BROADWELL_SMBUS_H_ |
| #define _BROADWELL_SMBUS_H_ |
| |
| /* PCI Configuration Space (D31:F3): SMBus */ |
| #define SMB_BASE 0x20 |
| #define HOSTC 0x40 |
| #define HST_EN (1 << 0) |
| #define SMB_RCV_SLVA 0x09 |
| |
| /* SMBus I/O bits. */ |
| #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 SMBUS_TIMEOUT (10 * 1000 * 100) |
| #define SMBUS_SLAVE_ADDR 0x24 |
| |
| int do_smbus_read_byte(unsigned smbus_base, unsigned device, |
| unsigned address); |
| int do_smbus_write_byte(unsigned smbus_base, unsigned device, |
| unsigned address, unsigned data); |
| |
| #endif |
