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Diffstat (limited to 'src/soc/intel/apollolake/memmap.c')
-rw-r--r-- | src/soc/intel/apollolake/memmap.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/memmap.c b/src/soc/intel/apollolake/memmap.c new file mode 100644 index 0000000000..bfff9652da --- /dev/null +++ b/src/soc/intel/apollolake/memmap.c @@ -0,0 +1,27 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Intel Corp. + * (Written by Andrey Petrov <andrey.petrov@intel.com> for Intel Corp.) + * + * 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. + */ + +#include <arch/io.h> +#include <cbmem.h> +#include <device/pci.h> +#include <soc/northbridge.h> +#include <soc/pci_devs.h> + +static uintptr_t smm_region_start(void) +{ + return ALIGN_DOWN(pci_read_config32(NB_DEV_ROOT, TSEG), 1*MiB); +} + +void *cbmem_top(void) +{ + return (void *)smm_region_start(); +} |