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- /*
- * Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
- #include <asm_macros.S>
- .globl disable_mpu_el2
- .globl disable_mpu_icache_el2
- /* ---------------------------------------------------------------------------
- * Disable the MPU at EL2.
- * ---------------------------------------------------------------------------
- */
- func disable_mpu_el2
- mov x1, #(SCTLR_M_BIT | SCTLR_C_BIT)
- do_disable_mpu_el2:
- mrs x0, sctlr_el2
- bic x0, x0, x1
- msr sctlr_el2, x0
- isb /* ensure MMU is off */
- dsb sy
- ret
- endfunc disable_mpu_el2
- func disable_mpu_icache_el2
- mov x1, #(SCTLR_M_BIT | SCTLR_C_BIT | SCTLR_I_BIT)
- b do_disable_mpu_el2
- endfunc disable_mpu_icache_el2
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