u-boot-brain/arch/arm/cpu/armv7/exynos/tzpc.c
Wolfgang Denk 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00

42 lines
962 B
C

/*
* Lowlevel setup for SMDK5250 board based on S5PC520
*
* Copyright (C) 2012 Samsung Electronics
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/tzpc.h>
#include <asm/io.h>
/* 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);
}
}