Sven Schnelle | e2ca71e | 2011-02-14 20:02:47 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2008-2009 coresystems GmbH |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License as |
| 8 | * published by the Free Software Foundation; version 2 of |
| 9 | * the License. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
| 19 | * MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | #include <arch/io.h> |
| 23 | #include <arch/romcc_io.h> |
| 24 | #include <console/console.h> |
| 25 | #include <cpu/x86/smm.h> |
| 26 | #include "southbridge/intel/i82801gx/nvs.h" |
| 27 | |
| 28 | /* The southbridge SMI handler checks whether gnvs has a |
| 29 | * valid pointer before calling the trap handler |
| 30 | */ |
| 31 | extern global_nvs_t *gnvs; |
| 32 | |
| 33 | int mainboard_io_trap_handler(int smif) |
| 34 | { |
| 35 | switch (smif) { |
| 36 | case 0x99: |
| 37 | printk(BIOS_DEBUG, "Sample\n"); |
| 38 | //gnvs->smif = 0; |
| 39 | break; |
| 40 | default: |
| 41 | return 0; |
| 42 | } |
| 43 | |
| 44 | /* On success, the IO Trap Handler returns 0 |
| 45 | * On failure, the IO Trap Handler returns a value != 0 |
| 46 | * |
| 47 | * For now, we force the return value to 0 and log all traps to |
| 48 | * see what's going on. |
| 49 | */ |
| 50 | //gnvs->smif = 0; |
| 51 | return 1; |
| 52 | } |
| 53 | |