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/*
* This file is part of the coreboot project.
*
* Copyright 2013 Google Inc.
* Copyright (C) 2012 Samsung Electronics
*
* 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.
*/
#include <arch/io.h>
#include <soc/trustzone.h>
/* Setting TZPC[TrustZone Protection Controller]
* We pretty much disable it all, as the kernel
* expects it that way -- and that's not the default.
*/
void trustzone_init(void)
{
struct exynos_tzpc *tzpc;
unsigned int addr;
for (addr = TZPC10_BASE; addr <= TZPC9_BASE; addr += TZPC_BASE_OFFSET) {
tzpc = (struct exynos_tzpc *)addr;
if (addr == TZPC0_BASE)
write32(&tzpc->r0size, R0SIZE);
write32(&tzpc->decprot0set, DECPROTXSET);
write32(&tzpc->decprot1set, DECPROTXSET);
write32(&tzpc->decprot2set, DECPROTXSET);
write32(&tzpc->decprot3set, DECPROTXSET);
}
}
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