diff options
Diffstat (limited to 'src/cpu/amd/geode_lx/syspreinit.c')
| -rw-r--r-- | src/cpu/amd/geode_lx/syspreinit.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/cpu/amd/geode_lx/syspreinit.c b/src/cpu/amd/geode_lx/syspreinit.c new file mode 100644 index 0000000000..35c54fba5f --- /dev/null +++ b/src/cpu/amd/geode_lx/syspreinit.c @@ -0,0 +1,46 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2006 Indrek Kruusa <indrek.kruusa@artecdesign.ee> + * Copyright (C) 2006 Ronald G. Minnich <rminnich@gmail.com> + * Copyright (C) 2007 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; 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* ***************************************************************************/ +/* **/ +/* * StartTimer1*/ +/* **/ +/* * Entry: none*/ +/* * Exit: Starts Timer 1 for port 61 use*/ +/* * Destroys: Al,*/ +/* **/ +/* ***************************************************************************/ +static void StartTimer1(void) +{ + outb(0x56, 0x43); + outb(0x12, 0x41); +} + +void SystemPreInit(void) +{ + + /* they want a jump ... */ +#if !CONFIG_CACHE_AS_RAM + __asm__ __volatile__("jmp .+2\ninvd\njmp .+2\n"); +#endif + StartTimer1(); +} |