| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2010 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 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 __PICASSO_SMBUS_H__ |
| #define __PICASSO_SMBUS_H__ |
| |
| #include <stdint.h> |
| #include <soc/iomap.h> |
| |
| #define SMB_SPEED_400KHZ (66000000 / (400000 * 4)) |
| |
| /* |
| * Between 1-10 seconds, We should never timeout normally |
| * Longer than this is just painful when a timeout condition occurs. |
| */ |
| #define SMBUS_TIMEOUT (100 * 1000 * 10) |
| |
| int do_smbus_read_byte(u32 mmio, u8 device, u8 address); |
| int do_smbus_write_byte(u32 mmio, u8 device, u8 address, u8 val); |
| int do_smbus_recv_byte(u32 mmio, u8 device); |
| int do_smbus_send_byte(u32 mmio, u8 device, u8 val); |
| |
| #endif /* __PICASSO_SMBUS_H__ */ |
