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