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/*
* Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <platform_def.h>
#include <arch.h>
#include <drivers/arm/cci.h>
#include <lib/utils.h>
#include <plat/arm/common/plat_arm.h>
static const int cci_map[] = {
PLAT_ARM_CCI_CLUSTER0_SL_IFACE_IX,
PLAT_ARM_CCI_CLUSTER1_SL_IFACE_IX
};
/******************************************************************************
* The following functions are defined as weak to allow a platform to override
* the way ARM CCI driver is initialised and used.
*****************************************************************************/
#pragma weak plat_arm_interconnect_init
#pragma weak plat_arm_interconnect_enter_coherency
#pragma weak plat_arm_interconnect_exit_coherency
/******************************************************************************
* Helper function to initialize ARM CCI driver.
*****************************************************************************/
void __init plat_arm_interconnect_init(void)
{
cci_init(PLAT_ARM_CCI_BASE, cci_map, ARRAY_SIZE(cci_map));
}
/******************************************************************************
* Helper function to place current master into coherency
*****************************************************************************/
void plat_arm_interconnect_enter_coherency(void)
{
cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
}
/******************************************************************************
* Helper function to remove current master from coherency
*****************************************************************************/
void plat_arm_interconnect_exit_coherency(void)
{
cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
}
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