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https://github.com/ARM-software/arm-trusted-firmware.git
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a28471722a
This commit is a preparation for upcoming support for OcteonTX and OcteonTX2 product families. Armada platform related files (docs, plat, include/plat) are moved to the new "armada" sub-folder. Change-Id: Icf03356187078ad6a2e56c9870992be3ca4c9655 Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com> Signed-off-by: Marcin Wojtas <mw@semihalf.com>
31 lines
663 B
ArmAsm
31 lines
663 B
ArmAsm
/*
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* Copyright (C) 2018 Marvell International Ltd.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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* https://spdx.org/licenses
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*/
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#include <asm_macros.S>
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#include <marvell_def.h>
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#include <platform_def.h>
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#define PTE_NON_EXEC_OFF 54 /* XN - eXecute Never bit offset - see VMSAv8-64 */
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.globl marvell_ble_prepare_exit
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func marvell_ble_prepare_exit
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/*
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* Read the page table base and set the first page to be executable.
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* This is required for jumping to DRAM for further execution.
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*/
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mrs x0, ttbr0_el3
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ldr x1, [x0]
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mov x2, #1
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bic x1, x1, x2, lsl #PTE_NON_EXEC_OFF
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str x1, [x0]
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tlbi alle3
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dsb sy
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isb
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ret
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endfunc marvell_ble_prepare_exit
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