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/*
* Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch.h>
#include <arch_helpers.h>
#include "../bl1_private.h"
/*******************************************************************************
* Function that does the first bit of architectural setup that affects
* execution in the non-secure address space.
******************************************************************************/
void bl1_arch_setup(void)
{
/* Set the next EL to be AArch64 */
write_scr_el3(read_scr_el3() | SCR_RW_BIT);
}
/*******************************************************************************
* Set the Secure EL1 required architectural state
******************************************************************************/
void bl1_arch_next_el_setup(void)
{
unsigned long next_sctlr;
/* Use the same endianness than the current BL */
next_sctlr = (read_sctlr_el3() & SCTLR_EE_BIT);
/* Set SCTLR Secure EL1 */
next_sctlr |= SCTLR_EL1_RES1;
write_sctlr_el1(next_sctlr);
}
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