diff options
Diffstat (limited to 'src/southbridge/intel/i82371eb/bootblock.c')
| -rw-r--r-- | src/southbridge/intel/i82371eb/bootblock.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/src/southbridge/intel/i82371eb/bootblock.c b/src/southbridge/intel/i82371eb/bootblock.c index f83b4073c1..07fa0bcd62 100644 --- a/src/southbridge/intel/i82371eb/bootblock.c +++ b/src/southbridge/intel/i82371eb/bootblock.c @@ -1,7 +1,7 @@ /* * This file is part of the coreboot project. * - * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de> + * 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 @@ -18,7 +18,35 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#include "southbridge/intel/i82371eb/enable_rom.c" +#include <stdint.h> +#include <arch/io.h> +#include <arch/romcc_io.h> +#include <device/pci_ids.h> +#include "i82371eb.h" + +static void i82371eb_enable_rom(void) +{ + u16 reg16; + device_t dev; + + /* + * Note: The Intel 82371AB/EB/MB ISA device can be on different + * PCI bus:device.function locations on different boards. + * Examples we encountered: 00:07.0, 00:04.0, or 00:14.0. + * But scanning for the PCI IDs (instead of hardcoding + * bus/device/function numbers) works on all boards. + */ + dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82371AB_ISA), 0); + + /* 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); +} static void bootblock_southbridge_init(void) { |