| Nico Huber | 33fcaf9 | 2018-10-10 22:44:20 +0200 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2017 Intel Corp. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | */ |
| 15 | |
| 16 | #ifndef X86_CF9_RESET_H |
| 17 | #define X86_CF9_RESET_H |
| 18 | |
| 19 | /* Reset control port */ |
| 20 | #define RST_CNT 0xcf9 |
| 21 | #define FULL_RST (1 << 3) |
| 22 | #define RST_CPU (1 << 2) |
| 23 | #define SYS_RST (1 << 1) |
| 24 | |
| 25 | /* Implement the bare reset, i.e. write to cf9. */ |
| 26 | void do_system_reset(void); |
| 27 | void do_full_reset(void); |
| 28 | |
| 29 | /* Called by functions below before reset. */ |
| 30 | #if IS_ENABLED(CONFIG_HAVE_CF9_RESET_PREPARE) |
| 31 | void cf9_reset_prepare(void); |
| 32 | #else |
| 33 | static inline void cf9_reset_prepare(void) {} |
| 34 | #endif |
| 35 | |
| 36 | /* Prepare for reset, run do_*_reset(), halt. */ |
| 37 | __noreturn void system_reset(void); |
| 38 | __noreturn void full_reset(void); |
| 39 | |
| 40 | #endif /* X86_CF9_RESET_H */ |