plat/rockchip/common/plat_topology.c

   1 /*
   2  * Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved.
   3  *
   4  * SPDX-License-Identifier: BSD-3-Clause
   5  */
   6
   7 #include <platform_def.h>
   8
   9 #include <arch.h>
  10 #include <lib/psci/psci.h>
  11
  12 #include <plat_private.h>
  13
  14 /*******************************************************************************
  15  * This function returns the RockChip default topology tree information.
  16  ******************************************************************************/
  17 const unsigned char *plat_get_power_domain_tree_desc(void)
  18 {
  19         return rockchip_power_domain_tree_desc;
  20 }
  21
  22 int plat_core_pos_by_mpidr(u_register_t mpidr)
  23 {
  24         unsigned int cluster_id, cpu_id;
  25
  26         cpu_id = mpidr & MPIDR_AFFLVL_MASK;
  27         cluster_id = mpidr & MPIDR_CLUSTER_MASK;
  28
  29         cpu_id += (cluster_id >> PLAT_RK_CLST_TO_CPUID_SHIFT);
  30
  31         if (cpu_id >= PLATFORM_CORE_COUNT)
  32                 return -1;
  33
  34         return cpu_id;
  35 }