16355f234SVikram Kanigiri /* 2c9263e62SDaniel Boulby * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved. 36355f234SVikram Kanigiri * 482cb2c1aSdp-arm * SPDX-License-Identifier: BSD-3-Clause 56355f234SVikram Kanigiri */ 66355f234SVikram Kanigiri 76355f234SVikram Kanigiri #include <platform_def.h> 809d40e0eSAntonio Nino Diaz 909d40e0eSAntonio Nino Diaz #include <arch.h> 1009d40e0eSAntonio Nino Diaz #include <drivers/arm/cci.h> 1109d40e0eSAntonio Nino Diaz #include <lib/utils.h> 12*bd9344f6SAntonio Nino Diaz #include <plat/arm/common/plat_arm.h> 136355f234SVikram Kanigiri 146355f234SVikram Kanigiri static const int cci_map[] = { 156355f234SVikram Kanigiri PLAT_ARM_CCI_CLUSTER0_SL_IFACE_IX, 166355f234SVikram Kanigiri PLAT_ARM_CCI_CLUSTER1_SL_IFACE_IX 176355f234SVikram Kanigiri }; 186355f234SVikram Kanigiri 196355f234SVikram Kanigiri /****************************************************************************** 206355f234SVikram Kanigiri * The following functions are defined as weak to allow a platform to override 216355f234SVikram Kanigiri * the way ARM CCI driver is initialised and used. 226355f234SVikram Kanigiri *****************************************************************************/ 236355f234SVikram Kanigiri #pragma weak plat_arm_interconnect_init 246355f234SVikram Kanigiri #pragma weak plat_arm_interconnect_enter_coherency 256355f234SVikram Kanigiri #pragma weak plat_arm_interconnect_exit_coherency 266355f234SVikram Kanigiri 276355f234SVikram Kanigiri 286355f234SVikram Kanigiri /****************************************************************************** 296355f234SVikram Kanigiri * Helper function to initialize ARM CCI driver. 306355f234SVikram Kanigiri *****************************************************************************/ 31c9263e62SDaniel Boulby void __init plat_arm_interconnect_init(void) 326355f234SVikram Kanigiri { 336355f234SVikram Kanigiri cci_init(PLAT_ARM_CCI_BASE, cci_map, ARRAY_SIZE(cci_map)); 346355f234SVikram Kanigiri } 356355f234SVikram Kanigiri 366355f234SVikram Kanigiri /****************************************************************************** 376355f234SVikram Kanigiri * Helper function to place current master into coherency 386355f234SVikram Kanigiri *****************************************************************************/ 396355f234SVikram Kanigiri void plat_arm_interconnect_enter_coherency(void) 406355f234SVikram Kanigiri { 416355f234SVikram Kanigiri cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1())); 426355f234SVikram Kanigiri } 436355f234SVikram Kanigiri 446355f234SVikram Kanigiri /****************************************************************************** 456355f234SVikram Kanigiri * Helper function to remove current master from coherency 466355f234SVikram Kanigiri *****************************************************************************/ 476355f234SVikram Kanigiri void plat_arm_interconnect_exit_coherency(void) 486355f234SVikram Kanigiri { 496355f234SVikram Kanigiri cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1())); 506355f234SVikram Kanigiri } 51