src/soc/samsung/exynos5250/trustzone.c


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/* SPDX-License-Identifier: GPL-2.0-only */

#include <device/mmio.h>
#include <soc/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)
			write32(&tzpc->r0size, R0SIZE);

		write32(&tzpc->decprot0set, DECPROTXSET);
		write32(&tzpc->decprot1set, DECPROTXSET);

		if (addr != TZPC9_BASE) {
			write32(&tzpc->decprot2set, DECPROTXSET);
			write32(&tzpc->decprot3set, DECPROTXSET);
		}
	}
}