41 lines
876 B
C
41 lines
876 B
C
/*
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* Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <arch.h>
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#include <arch_helpers.h>
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#include <plat/common/platform.h>
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const unsigned char imx_power_domain_tree_desc[] = {
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PWR_DOMAIN_AT_MAX_LVL,
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PLATFORM_CLUSTER_COUNT,
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PLATFORM_CLUSTER0_CORE_COUNT,
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PLATFORM_CLUSTER1_CORE_COUNT,
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};
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const unsigned char *plat_get_power_domain_tree_desc(void)
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{
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return imx_power_domain_tree_desc;
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}
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int plat_core_pos_by_mpidr(u_register_t mpidr)
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{
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unsigned int cluster_id, cpu_id;
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mpidr &= MPIDR_AFFINITY_MASK;
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if (mpidr & ~(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK))
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return -1;
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cluster_id = MPIDR_AFFLVL1_VAL(mpidr);
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cpu_id = MPIDR_AFFLVL0_VAL(mpidr);
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if (cluster_id > PLATFORM_CLUSTER_COUNT ||
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cpu_id > PLATFORM_MAX_CPU_PER_CLUSTER)
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return -1;
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return (cpu_id + (cluster_id * 4));
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}
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