diff options
Diffstat (limited to 'src/cpu/samsung/exynos5250/trustzone.c')
-rw-r--r-- | src/cpu/samsung/exynos5250/trustzone.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/cpu/samsung/exynos5250/trustzone.c b/src/cpu/samsung/exynos5250/trustzone.c new file mode 100644 index 0000000000..d67eb33228 --- /dev/null +++ b/src/cpu/samsung/exynos5250/trustzone.c @@ -0,0 +1,44 @@ +/* + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <arch/io.h> +#include "trustzone.h" + +/* Setting TZPC[TrustZone Protection Controller] */ +void trustzone_init(void) +{ + struct exynos_tzpc *tzpc; + unsigned int addr; + + for (addr = TZPC0_BASE; addr <= TZPC9_BASE; addr += TZPC_BASE_OFFSET) { + tzpc = (struct exynos_tzpc *)addr; + + if (addr == TZPC0_BASE) + writel(R0SIZE, &tzpc->r0size); + + writel(DECPROTXSET, &tzpc->decprot0set); + writel(DECPROTXSET, &tzpc->decprot1set); + + if (addr != TZPC9_BASE) { + writel(DECPROTXSET, &tzpc->decprot2set); + writel(DECPROTXSET, &tzpc->decprot3set); + } + } +} |