diff options
Diffstat (limited to 'src/northbridge/intel/sandybridge/ram_calc.c')
-rw-r--r-- | src/northbridge/intel/sandybridge/ram_calc.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/northbridge/intel/sandybridge/ram_calc.c b/src/northbridge/intel/sandybridge/ram_calc.c new file mode 100644 index 0000000000..3693a07355 --- /dev/null +++ b/src/northbridge/intel/sandybridge/ram_calc.c @@ -0,0 +1,31 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 Google 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; 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. + * + * 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 + */ + +#define __SIMPLE_DEVICE__ + +#include <arch/io.h> +#include <cbmem.h> +#include "sandybridge.h" + +unsigned long get_top_of_ram(void) +{ + /* Base of TSEG is top of usable DRAM */ + u32 tom = pci_read_config32(PCI_DEV(0,0,0), TSEG); + return (unsigned long) tom; +} |