From 77b55e8cfcee9ce1a973bf4dad3e160dd0be01f3 Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Mon, 3 Aug 2015 17:58:00 +0530 Subject: ARM: exynos: move SoC sources to mach-exynos Move arch/arm/cpu/armv7/exynos/* to arch/arm/mach-exynos/* to allow reuse of existing code for ARMv8 based Exynos platforms. Cc: Minkyu Kang Cc: Albert Aribaud Cc: Masahiro Yamada Signed-off-by: Thomas Abraham Reviewed-by: Masahiro Yamada Tested-by: Przemyslaw Marczak Acked-by: Przemyslaw Marczak Signed-off-by: Minkyu Kang --- arch/arm/mach-exynos/tzpc.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 arch/arm/mach-exynos/tzpc.c (limited to 'arch/arm/mach-exynos/tzpc.c') diff --git a/arch/arm/mach-exynos/tzpc.c b/arch/arm/mach-exynos/tzpc.c new file mode 100644 index 0000000000..395077cf25 --- /dev/null +++ b/arch/arm/mach-exynos/tzpc.c @@ -0,0 +1,41 @@ +/* + * Lowlevel setup for SMDK5250 board based on S5PC520 + * + * Copyright (C) 2012 Samsung Electronics + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include + +/* Setting TZPC[TrustZone Protection Controller] */ +void tzpc_init(void) +{ + struct exynos_tzpc *tzpc; + unsigned int addr, start = 0, end = 0; + + start = samsung_get_base_tzpc(); + + if (cpu_is_exynos5()) + end = start + ((EXYNOS5_NR_TZPC_BANKS - 1) * TZPC_BASE_OFFSET); + else if (cpu_is_exynos4()) + end = start + ((EXYNOS4_NR_TZPC_BANKS - 1) * TZPC_BASE_OFFSET); + + for (addr = start; addr <= end; addr += TZPC_BASE_OFFSET) { + tzpc = (struct exynos_tzpc *)addr; + + if (addr == start) + writel(R0SIZE, &tzpc->r0size); + + writel(DECPROTXSET, &tzpc->decprot0set); + writel(DECPROTXSET, &tzpc->decprot1set); + + if (cpu_is_exynos5() && (addr == end)) + break; + + writel(DECPROTXSET, &tzpc->decprot2set); + writel(DECPROTXSET, &tzpc->decprot3set); + } +} -- cgit v1.2.1