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Viewing changes to roms/u-boot/arch/arm/cpu/armv7/exynos/tzpc.c

  • Committer: Phil Dennis-Jordan
  • Date: 2017-07-21 08:03:43 UTC
  • mfrom: (1.1.1)
  • Revision ID: phil@philjordan.eu-20170721080343-2yr2vdj7713czahv
New upstream release 2.9.0.

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roms/u-boot/arch/arm/cpu/armv7/exynos/tzpc.c
 
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/*
 
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 * Lowlevel setup for SMDK5250 board based on S5PC520
 
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 *
 
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 * Copyright (C) 2012 Samsung Electronics
 
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 *
 
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 * SPDX-License-Identifier:     GPL-2.0+
 
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 */
 
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#include <common.h>
 
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#include <asm/arch/tzpc.h>
 
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#include <asm/io.h>
 
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/* Setting TZPC[TrustZone Protection Controller] */
 
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void tzpc_init(void)
 
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{
 
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        struct exynos_tzpc *tzpc;
 
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        unsigned int addr, start = 0, end = 0;
 
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        start = samsung_get_base_tzpc();
 
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        if (cpu_is_exynos5())
 
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                end = start + ((EXYNOS5_NR_TZPC_BANKS - 1) * TZPC_BASE_OFFSET);
 
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        else if (cpu_is_exynos4())
 
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                end = start + ((EXYNOS4_NR_TZPC_BANKS - 1) * TZPC_BASE_OFFSET);
 
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        for (addr = start; addr <= end; addr += TZPC_BASE_OFFSET) {
 
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                tzpc = (struct exynos_tzpc *)addr;
 
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                if (addr == start)
 
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                        writel(R0SIZE, &tzpc->r0size);
 
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                writel(DECPROTXSET, &tzpc->decprot0set);
 
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                writel(DECPROTXSET, &tzpc->decprot1set);
 
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                if (cpu_is_exynos5() && (addr == end))
 
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                        break;
 
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                writel(DECPROTXSET, &tzpc->decprot2set);
 
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                writel(DECPROTXSET, &tzpc->decprot3set);
 
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        }
 
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}