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/*
* Copyright (c) 2022, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch.h>
#include <arch_features.h>
#include <arch_helpers.h>
void brbe_enable(void)
{
uint64_t val;
if (is_feat_brbe_present()) {
/*
* MDCR_EL3.SBRBE = 0b01
*
* Allows BRBE usage in non-secure world and prohibited in
* secure world.
*/
val = read_mdcr_el3();
val &= ~(MDCR_SBRBE_MASK << MDCR_SBRBE_SHIFT);
val |= (0x1UL << MDCR_SBRBE_SHIFT);
write_mdcr_el3(val);
}
}
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