| /* |
| * 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 |
