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/*
* This file is part of the coreboot project.
*
* Copyright 2014 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
*/
#include <cbmem.h>
#include <soc/addressmap.h>
void *cbmem_top(void)
{
static uintptr_t addr;
size_t fb_size;
/*
* FIXME(adurbin): The TZ registers are not accessible to the AVP.
* Therefore, if there is a TZ carveout then it needs to be handled
* here while executing on the AVP in order to properly place the
* CBMEM region.
*/
/* CBMEM starts downwards from the framebuffer. */
if (addr == 0)
addr = framebuffer_attributes(&fb_size);
return (void *)(addr << 20UL);
}
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