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 <ccn.h> 10*76f735fdSPankaj Gupta 11*76f735fdSPankaj Gupta #include <plat_arm.h> 12*76f735fdSPankaj Gupta 13*76f735fdSPankaj Gupta /****************************************************************************** 14*76f735fdSPankaj Gupta * Helper function to place current master into coherency 15*76f735fdSPankaj Gupta *****************************************************************************/ 16*76f735fdSPankaj Gupta void plat_ls_interconnect_enter_coherency(unsigned int num_clusters) 17*76f735fdSPankaj Gupta { 18*76f735fdSPankaj Gupta ccn_enter_snoop_dvm_domain(1ULL << MPIDR_AFFLVL1_VAL(read_mpidr_el1())); 19*76f735fdSPankaj Gupta 20*76f735fdSPankaj Gupta for (uint32_t index = 1U; index < num_clusters; index++) { 21*76f735fdSPankaj Gupta ccn_enter_snoop_dvm_domain(1ULL << index); 22*76f735fdSPankaj Gupta } 23*76f735fdSPankaj Gupta } 24*76f735fdSPankaj Gupta 25*76f735fdSPankaj Gupta /****************************************************************************** 26*76f735fdSPankaj Gupta * Helper function to remove current master from coherency 27*76f735fdSPankaj Gupta *****************************************************************************/ 28*76f735fdSPankaj Gupta void plat_ls_interconnect_exit_coherency(void) 29*76f735fdSPankaj Gupta { 30*76f735fdSPankaj Gupta ccn_exit_snoop_dvm_domain(1ULL << MPIDR_AFFLVL1_VAL(read_mpidr_el1())); 31*76f735fdSPankaj Gupta } 32