| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2007 Advanced Micro Devices, Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * 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. |
| */ |
| |
| #include "cs5536.h" |
| #include "smbus.h" |
| |
| /* initialization for SMBus Controller */ |
| static void cs5536_enable_smbus(void) |
| { |
| |
| /* Set SCL freq and enable SMB controller */ |
| /*outb((0x20 << 1) | SMB_CTRL2_ENABLE, smbus_io_base + SMB_CTRL2); */ |
| outb((0x7F << 1) | SMB_CTRL2_ENABLE, SMBUS_IO_BASE + SMB_CTRL2); |
| |
| /* Setup SMBus host controller address to 0xEF */ |
| outb((0xEF | SMB_ADD_SAEN), SMBUS_IO_BASE + SMB_ADD); |
| |
| } |
| |
| static inline int smbus_read_byte(unsigned device, unsigned address) |
| { |
| return do_smbus_read_byte(SMBUS_IO_BASE, device, address); |
| } |