diff options
Diffstat (limited to 'src/southbridge/intel/i82801jx/bootblock.c')
-rw-r--r-- | src/southbridge/intel/i82801jx/bootblock.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801jx/bootblock.c b/src/southbridge/intel/i82801jx/bootblock.c new file mode 100644 index 0000000000..6252712eba --- /dev/null +++ b/src/southbridge/intel/i82801jx/bootblock.c @@ -0,0 +1,34 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 Sven Schnelle <svens@stackframe.org> + * + * 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; version 2 of the License. + * + * 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. + */ + +#include <arch/io.h> + +static void enable_spi_prefetch(void) +{ + u8 reg8; + pci_devfn_t dev; + + dev = PCI_DEV(0, 0x1f, 0); + + reg8 = pci_read_config8(dev, 0xdc); + reg8 &= ~(3 << 2); + reg8 |= (2 << 2); /* Prefetching and Caching Enabled */ + pci_write_config8(dev, 0xdc, reg8); +} + +static void bootblock_southbridge_init(void) +{ + enable_spi_prefetch(); +} |