I'm not totally sure the ACPI code is hard coded to 1 GB. The default values in the ACPI code code correspond to 1 GB and there is some code which will calculate BIOS memory location from TOM and TOM2. I could notfind any place where TOM and TOM2 are updated,
its in acpi-k8.c in amd directory. Its in ssdt table. Rudolf -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot

