1*76f735fdSPankaj Gupta /* 2*76f735fdSPankaj Gupta * Copyright 2020 NXP 3*76f735fdSPankaj Gupta * 4*76f735fdSPankaj Gupta * SPDX-License-Identifier: BSD-3-Clause 5*76f735fdSPankaj Gupta * 6*76f735fdSPankaj Gupta */ 7*76f735fdSPankaj Gupta 8*76f735fdSPankaj Gupta #include <arch.h> 9*76f735fdSPankaj Gupta #include <cci.h> 10*76f735fdSPankaj Gupta 11*76f735fdSPankaj Gupta #include <plat_arm.h> 12*76f735fdSPankaj Gupta 13*76f735fdSPankaj Gupta 14*76f735fdSPankaj Gupta /****************************************************************************** 15*76f735fdSPankaj Gupta * Helper function to place current master into coherency 16*76f735fdSPankaj Gupta *****************************************************************************/ plat_ls_interconnect_enter_coherency(unsigned int num_clusters)17*76f735fdSPankaj Guptavoid plat_ls_interconnect_enter_coherency(unsigned int num_clusters) 18*76f735fdSPankaj Gupta { 19*76f735fdSPankaj Gupta cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1())); 20*76f735fdSPankaj Gupta 21*76f735fdSPankaj Gupta for (uint32_t index = 1U; index < num_clusters; index++) { 22*76f735fdSPankaj Gupta cci_enable_snoop_dvm_reqs(index); 23*76f735fdSPankaj Gupta } 24*76f735fdSPankaj Gupta } 25*76f735fdSPankaj Gupta 26*76f735fdSPankaj Gupta /****************************************************************************** 27*76f735fdSPankaj Gupta * Helper function to remove current master from coherency 28*76f735fdSPankaj Gupta *****************************************************************************/ plat_ls_interconnect_exit_coherency(void)29*76f735fdSPankaj Guptavoid plat_ls_interconnect_exit_coherency(void) 30*76f735fdSPankaj Gupta { 31*76f735fdSPankaj Gupta cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1())); 32*76f735fdSPankaj Gupta } 33