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39 lines
1.3 KiB
39 lines
1.3 KiB
4 years ago
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/*
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* Copyright 2020 NXP
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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*/
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#include <arch.h>
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#include <cci.h>
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#include <plat_arm.h>
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/******************************************************************************
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* The following functions are defined as weak to allow a platform to override
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* the way ARM CCI driver is initialised and used.
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*****************************************************************************/
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#pragma weak plat_arm_interconnect_enter_coherency
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#pragma weak plat_arm_interconnect_exit_coherency
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/******************************************************************************
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* Helper function to place current master into coherency
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*****************************************************************************/
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void plat_ls_interconnect_enter_coherency(unsigned int num_clusters)
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{
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cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
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for (uint32_t index = 1U; index < num_clusters; index++) {
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cci_enable_snoop_dvm_reqs(index);
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}
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}
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/******************************************************************************
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* Helper function to remove current master from coherency
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*****************************************************************************/
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void plat_ls_interconnect_exit_coherency(void)
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{
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cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
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}
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