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https://github.com/brain-hackers/u-boot-brain
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b5f9756f7f
This requires that cpu_is_exynos4/5 should be made available before tzpc_init. Hence this patch also makes necessary changes to have cpu_info in spl and invokes arch_cpu_init before tzpc_init in low_level_init.S for smdk5250. Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org> Acked-by: Chander Kashyap <chander.kashyap@linaro.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*
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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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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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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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}
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