1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Lowlevel setup for SMDK5250 board based on S5PC520
4 *
5 * Copyright (C) 2012 Samsung Electronics
6 */
7
8#include <common.h>
9#include <asm/arch/tzpc.h>
10#include <asm/io.h>
11
12/* Setting TZPC[TrustZone Protection Controller] */
13void tzpc_init(void)
14{
15	struct exynos_tzpc *tzpc;
16	unsigned int addr, start = 0, end = 0;
17
18	start = samsung_get_base_tzpc();
19
20	if (cpu_is_exynos5())
21		end = start + ((EXYNOS5_NR_TZPC_BANKS - 1) * TZPC_BASE_OFFSET);
22	else if (cpu_is_exynos4())
23		end = start + ((EXYNOS4_NR_TZPC_BANKS - 1) * TZPC_BASE_OFFSET);
24
25	for (addr = start; addr <= end; addr += TZPC_BASE_OFFSET) {
26		tzpc = (struct exynos_tzpc *)addr;
27
28		if (addr == start)
29			writel(R0SIZE, &tzpc->r0size);
30
31		writel(DECPROTXSET, &tzpc->decprot0set);
32		writel(DECPROTXSET, &tzpc->decprot1set);
33
34		if (cpu_is_exynos5() && (addr == end))
35			break;
36
37		writel(DECPROTXSET, &tzpc->decprot2set);
38		writel(DECPROTXSET, &tzpc->decprot3set);
39	}
40}
41