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> 8*09d40e0eSAntonio Nino Diaz 9*09d40e0eSAntonio Nino Diaz #include <arch.h> 10*09d40e0eSAntonio Nino Diaz #include <drivers/arm/cci.h> 11*09d40e0eSAntonio Nino Diaz #include <lib/utils.h> 12*09d40e0eSAntonio Nino Diaz 13*09d40e0eSAntonio Nino Diaz #include <plat_arm.h> 146355f234SVikram Kanigiri 156355f234SVikram Kanigiri static const int cci_map[] = { 166355f234SVikram Kanigiri PLAT_ARM_CCI_CLUSTER0_SL_IFACE_IX, 176355f234SVikram Kanigiri PLAT_ARM_CCI_CLUSTER1_SL_IFACE_IX 186355f234SVikram Kanigiri }; 196355f234SVikram Kanigiri 206355f234SVikram Kanigiri /****************************************************************************** 216355f234SVikram Kanigiri * The following functions are defined as weak to allow a platform to override 226355f234SVikram Kanigiri * the way ARM CCI driver is initialised and used. 236355f234SVikram Kanigiri *****************************************************************************/ 246355f234SVikram Kanigiri #pragma weak plat_arm_interconnect_init 256355f234SVikram Kanigiri #pragma weak plat_arm_interconnect_enter_coherency 266355f234SVikram Kanigiri #pragma weak plat_arm_interconnect_exit_coherency 276355f234SVikram Kanigiri 286355f234SVikram Kanigiri 296355f234SVikram Kanigiri /****************************************************************************** 306355f234SVikram Kanigiri * Helper function to initialize ARM CCI driver. 316355f234SVikram Kanigiri *****************************************************************************/ 32c9263e62SDaniel Boulby void __init plat_arm_interconnect_init(void) 336355f234SVikram Kanigiri { 346355f234SVikram Kanigiri cci_init(PLAT_ARM_CCI_BASE, cci_map, ARRAY_SIZE(cci_map)); 356355f234SVikram Kanigiri } 366355f234SVikram Kanigiri 376355f234SVikram Kanigiri /****************************************************************************** 386355f234SVikram Kanigiri * Helper function to place current master into coherency 396355f234SVikram Kanigiri *****************************************************************************/ 406355f234SVikram Kanigiri void plat_arm_interconnect_enter_coherency(void) 416355f234SVikram Kanigiri { 426355f234SVikram Kanigiri cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1())); 436355f234SVikram Kanigiri } 446355f234SVikram Kanigiri 456355f234SVikram Kanigiri /****************************************************************************** 466355f234SVikram Kanigiri * Helper function to remove current master from coherency 476355f234SVikram Kanigiri *****************************************************************************/ 486355f234SVikram Kanigiri void plat_arm_interconnect_exit_coherency(void) 496355f234SVikram Kanigiri { 506355f234SVikram Kanigiri cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1())); 516355f234SVikram Kanigiri } 52