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/*
* 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();
}
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