/* * Copyright (c) 2017-2024, Arm Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #include #include #include #include #include .macro assert_cache_enabled #if ENABLE_ASSERTIONS ldcopr r0, SCTLR tst r0, #SCTLR_C_BIT ASM_ASSERT(eq) #endif .endm func cortex_a7_disable_smp ldcopr r0, ACTLR bic r0, #CORTEX_A7_ACTLR_SMP_BIT stcopr r0, ACTLR isb dsb sy bx lr endfunc cortex_a7_disable_smp func cortex_a7_enable_smp ldcopr r0, ACTLR orr r0, #CORTEX_A7_ACTLR_SMP_BIT stcopr r0, ACTLR isb bx lr endfunc cortex_a7_enable_smp func cortex_a7_reset_func b cortex_a7_enable_smp endfunc cortex_a7_reset_func func cortex_a7_core_pwr_dwn push {r12, lr} assert_cache_enabled /* Flush L1 cache */ mov r0, #DC_OP_CISW bl dcsw_op_level1 /* Exit cluster coherency */ pop {r12, lr} b cortex_a7_disable_smp endfunc cortex_a7_core_pwr_dwn func cortex_a7_cluster_pwr_dwn push {r12, lr} assert_cache_enabled /* Flush L1 caches */ mov r0, #DC_OP_CISW bl dcsw_op_level1 bl plat_disable_acp /* Flush L2 caches */ mov r0, #DC_OP_CISW bl dcsw_op_level2 /* Exit cluster coherency */ pop {r12, lr} b cortex_a7_disable_smp endfunc cortex_a7_cluster_pwr_dwn declare_cpu_ops cortex_a7, CORTEX_A7_MIDR, \ cortex_a7_reset_func, \ cortex_a7_core_pwr_dwn, \ cortex_a7_cluster_pwr_dwn