diff options
Diffstat (limited to 'src/include/device')
-rw-r--r-- | src/include/device/early_smbus.h | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/src/include/device/early_smbus.h b/src/include/device/early_smbus.h deleted file mode 100644 index 015be6778a..0000000000 --- a/src/include/device/early_smbus.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2011 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 device/early_smbus.h - * - * This file defines a common API for accessing the SMBus during early - * initialization. It defines the prototypes for common SMBus functions. The - * actual implementations are hardware-dependent. - * - * The first parameter of all SMBus functions take a u32 value smbus_dev which - * represents some information on how to access the device, and is - * implementation defined. Usually, it just contains the IO base for the smbus. - * To get this argument @ref smbus_get_device() can be used. - * - * The header only defines the prototypes. Several steps are needed to use - * these: - * - * 1. Include this header - * @code{.c} - * #include <device/early_smbus.h> - * @endcode - * - * 2. Implement early_smbus.c for the hardware, or find a compatible - * implementation. - * - * 3. Link against the file that implements these functions. In the Makefile.inc - * of the chipset, add: - * @code - * romstage-y += ./path/to/early_smbus.c - * @endcode - */ - -#ifndef DEVICE_EARLY_SMBUS_H -#define DEVICE_EARLY_SMBUS_H - -#include <stdint.h> - -u16 smbus_read_word(u8 addr, u8 offset); -u8 smbus_read_byte(u8 addr, u8 offset); -u8 smbus_write_byte(u8 addr, u8 offset, u8 value); - -#endif /* DEVICE_EARLY_SMBUS_H */ |