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06b19d58ce
This patch introduces a function to secure the on-chip TZRAM memory. The Tegra132 and Tegra210 chips do not have a compelling use case to lock the TZRAM. The trusted OS owns the TZRAM aperture on these chips and so it can take care of locking the aperture. This might not be true for future chips and this patch makes the TZRAM programming flexible. Change-Id: I3ac9f1de1b792ccd23d4ded274784bbab2ea224a Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
40 lines
1.9 KiB
C
40 lines
1.9 KiB
C
/*
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* Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __MEMCTRL_H__
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#define __MEMCTRL_H__
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void tegra_memctrl_setup(void);
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void tegra_memctrl_tzdram_setup(uint64_t phys_base, uint32_t size_in_bytes);
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void tegra_memctrl_tzram_setup(uint64_t phys_base, uint32_t size_in_bytes);
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void tegra_memctrl_videomem_setup(uint64_t phys_base, uint32_t size_in_bytes);
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#endif /* __MEMCTRL_H__ */
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