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/*
* ***************************************************************************
* Copyright (C) 2016 Marvell International Ltd.
* ***************************************************************************
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of Marvell nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
***************************************************************************
*/
/*
* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <plat_marvell.h>
/* The power domain tree descriptor */
unsigned char marvell_power_domain_tree_desc[PLAT_MARVELL_CLUSTER_COUNT + 1];
/*******************************************************************************
* This function dynamically constructs the topology according to
* PLAT_MARVELL_CLUSTER_COUNT and returns it.
******************************************************************************/
const unsigned char *plat_get_power_domain_tree_desc(void)
{
int i;
/*
* The power domain tree does not have a single system level power
* domain i.e. a single root node. The first entry in the power domain
* descriptor specifies the number of power domains at the highest power
* level.
* For Marvell Platform this is the number of cluster power domains.
*/
marvell_power_domain_tree_desc[0] = PLAT_MARVELL_CLUSTER_COUNT;
for (i = 0; i < PLAT_MARVELL_CLUSTER_COUNT; i++)
marvell_power_domain_tree_desc[i + 1] =
PLAT_MARVELL_CLUSTER_CORE_COUNT;
return marvell_power_domain_tree_desc;
}
/*******************************************************************************
* This function validates an MPIDR by checking whether it falls within the
* acceptable bounds. An error code (-1) is returned if an incorrect mpidr
* is passed.
******************************************************************************/
int marvell_check_mpidr(u_register_t mpidr)
{
unsigned int cluster_id, cpu_id;
mpidr &= MPIDR_AFFINITY_MASK;
if (mpidr & ~(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK))
return -1;
cluster_id = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK;
cpu_id = (mpidr >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK;
if (cluster_id >= PLAT_MARVELL_CLUSTER_COUNT)
return -1;
if (cpu_id >= PLAT_MARVELL_CLUSTER_CORE_COUNT)
return -1;
return 0;
}
/*******************************************************************************
* This function implements a part of the critical interface between the psci
* generic layer and the platform that allows the former to query the platform
* to convert an MPIDR to a unique linear index. An error code (-1) is returned
* in case the MPIDR is invalid.
******************************************************************************/
int plat_core_pos_by_mpidr(u_register_t mpidr)
{
if (marvell_check_mpidr(mpidr) == -1)
return -1;
return plat_marvell_calc_core_pos(mpidr);
}
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