diff options
Diffstat (limited to 'src/southbridge/intel/i82371eb/i82371eb_enable_rom.c')
| -rw-r--r-- | src/southbridge/intel/i82371eb/i82371eb_enable_rom.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82371eb/i82371eb_enable_rom.c b/src/southbridge/intel/i82371eb/i82371eb_enable_rom.c new file mode 100644 index 0000000000..5b12e462be --- /dev/null +++ b/src/southbridge/intel/i82371eb/i82371eb_enable_rom.c @@ -0,0 +1,35 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de> + * + * 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 + */ + +#include <stdint.h> +#include "i82371eb.h" + +static void i82371eb_enable_rom(device_t dev) +{ + u16 reg16; + + /* Enable access to the whole ROM, disable ROM write access. */ + reg16 = pci_read_config16(dev, XBCS); + reg16 |= LOWER_BIOS_ENABLE; + reg16 |= EXT_BIOS_ENABLE; + reg16 |= EXT_BIOS_ENABLE_1MB; + reg16 &= ~(WRITE_PROTECT_ENABLE); /* Disable ROM write access. */ + pci_write_config16(dev, XBCS, reg16); +} |