1/*
2 * Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7#include <asm_macros.S>
8
9	.globl	disable_mpu_el2
10	.globl	disable_mpu_icache_el2
11
12/* ---------------------------------------------------------------------------
13 * Disable the MPU at EL2.
14 * ---------------------------------------------------------------------------
15 */
16
17func disable_mpu_el2
18	mov	x1, #(SCTLR_M_BIT | SCTLR_C_BIT)
19do_disable_mpu_el2:
20	mrs	x0, sctlr_el2
21	bic	x0, x0, x1
22	msr	sctlr_el2, x0
23	isb	/* ensure MMU is off */
24	dsb	sy
25	ret
26endfunc disable_mpu_el2
27
28
29func disable_mpu_icache_el2
30	mov	x1, #(SCTLR_M_BIT | SCTLR_C_BIT | SCTLR_I_BIT)
31	b	do_disable_mpu_el2
32endfunc disable_mpu_icache_el2
33