1 /* 2 * Copyright (C) 2018 Marvell International Ltd. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 * https://spdx.org/licenses 6 */ 7 8 #include <drivers/arm/cci.h> 9 10 #include <plat_marvell.h> 11 12 static const int cci_map[] = { 13 PLAT_MARVELL_CCI_CLUSTER0_SL_IFACE_IX, 14 PLAT_MARVELL_CCI_CLUSTER1_SL_IFACE_IX 15 }; 16 17 /**************************************************************************** 18 * The following functions are defined as weak to allow a platform to override 19 * the way ARM CCI driver is initialised and used. 20 **************************************************************************** 21 */ 22 #pragma weak plat_marvell_interconnect_init 23 #pragma weak plat_marvell_interconnect_enter_coherency 24 #pragma weak plat_marvell_interconnect_exit_coherency 25 26 27 /**************************************************************************** 28 * Helper function to initialize ARM CCI driver. 29 **************************************************************************** 30 */ plat_marvell_interconnect_init(void)31void plat_marvell_interconnect_init(void) 32 { 33 cci_init(PLAT_MARVELL_CCI_BASE, cci_map, ARRAY_SIZE(cci_map)); 34 } 35 36 /**************************************************************************** 37 * Helper function to place current master into coherency 38 **************************************************************************** 39 */ plat_marvell_interconnect_enter_coherency(void)40void plat_marvell_interconnect_enter_coherency(void) 41 { 42 cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1())); 43 } 44 45 /**************************************************************************** 46 * Helper function to remove current master from coherency 47 **************************************************************************** 48 */ plat_marvell_interconnect_exit_coherency(void)49void plat_marvell_interconnect_exit_coherency(void) 50 { 51 cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1())); 52 } 53