| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2013 Alexandru Gagniuc <mr.nuke.me@gmail.com> |
| * |
| * 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, either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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. |
| */ |
| |
| /** |
| * @file via_early_smbus.h |
| * |
| * This file contains generic definitions used in VIA SMBus controllers. |
| * |
| * Functions defined in device/early/smbus.h are each implemented in a separate |
| * early_smbus_[func_name].c file. This makes it possible to override any of |
| * these functions by not including them in your build, via Makefile.c. This is |
| * useful when there is a need to work around chipset bugs. |
| * |
| * These implementations work with most via chipsets. Any VIA port should try |
| * to use these. Makefile.inc needs to be adapted to link against the files |
| * providing SMBus functionality: |
| * @code |
| * romstage-y += ./../../../southbridge/via/common/early_smbus_func.c |
| * @endcode |
| */ |
| |
| /** |
| * \brief SMBus IO ports in relation to the base IO port |
| */ |
| |
| #define SMBHSTSTAT(base) ((u16)base + 0x0) |
| #define SMBSLVSTAT(base) ((u16)base + 0x1) |
| #define SMBHSTCTL(base) ((u16)base + 0x2) |
| #define SMBHSTCMD(base) ((u16)base + 0x3) |
| #define SMBXMITADD(base) ((u16)base + 0x4) |
| #define SMBHSTDAT0(base) ((u16)base + 0x5) |
| #define SMBHSTDAT1(base) ((u16)base + 0x6) |
| #define SMBBLKDAT(base) ((u16)base + 0x7) |
| #define SMBSLVCTL(base) ((u16)base + 0x8) |
| #define SMBTRNSADD(base) ((u16)base + 0x9) |
| #define SMBSLVDATA (base) ((u16)base + 0xa) |
| |
| #define SMBUS_TIMEOUT (100*1000*10) |
