43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
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/*
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* This file is part of the coreboot project.
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*
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* Copyright 2013 Google Inc.
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* Copyright (C) 2012 Samsung Electronics
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <arch/io.h>
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#include "trustzone.h"
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/* Setting TZPC[TrustZone Protection Controller]
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* We pretty much disable it all, as the kernel
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* expects it that way -- and that's not the default.
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*/
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void trustzone_init(void)
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{
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struct exynos_tzpc *tzpc;
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unsigned int addr;
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for (addr = TZPC10_BASE; addr <= TZPC9_BASE; addr += TZPC_BASE_OFFSET) {
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tzpc = (struct exynos_tzpc *)addr;
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if (addr == TZPC0_BASE)
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writel(R0SIZE, &tzpc->r0size);
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writel(DECPROTXSET, &tzpc->decprot0set);
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writel(DECPROTXSET, &tzpc->decprot1set);
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writel(DECPROTXSET, &tzpc->decprot2set);
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writel(DECPROTXSET, &tzpc->decprot3set);
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}
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}
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