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      1 /*
      2  * Copyright (c) 2014-2015, Linaro Ltd and Contributors. All rights reserved.
      3  * Copyright (c) 2014-2015, Hisilicon Ltd and Contributors. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  * Redistributions of source code must retain the above copyright notice, this
      9  * list of conditions and the following disclaimer.
     10  *
     11  * Redistributions in binary form must reproduce the above copyright notice,
     12  * this list of conditions and the following disclaimer in the documentation
     13  * and/or other materials provided with the distribution.
     14  *
     15  * Neither the name of ARM nor the names of its contributors may be used
     16  * to endorse or promote products derived from this software without specific
     17  * prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
     20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
     23  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <platform_def.h>
     33 #include <psci.h>
     34 
     35 unsigned int plat_get_aff_count(unsigned int aff_lvl, unsigned long mpidr)
     36 {
     37 	/* Report 1 (absent) instance at levels higher that the cluster level */
     38 	if (aff_lvl > MPIDR_AFFLVL1)
     39 		return 1;
     40 
     41 	if (aff_lvl == MPIDR_AFFLVL1)
     42 		return 2; /* We have two clusters */
     43 
     44 	return 4; /* 4 cpus in cluster 1 or cluster 0 */
     45 }
     46 
     47 unsigned int plat_get_aff_state(unsigned int aff_lvl, unsigned long mpidr)
     48 {
     49 	return aff_lvl <= MPIDR_AFFLVL1 ? PSCI_AFF_PRESENT : PSCI_AFF_ABSENT;
     50 }
     51 
     52 int plat_get_max_afflvl()
     53 {
     54 	return MPIDR_AFFLVL1;
     55 }
     56 
     57 int plat_setup_topology()
     58 {
     59 	/* Juno todo: Make topology configurable via SCC */
     60 	return 0;
     61 }
     62