xref: /rk3399_ARM-atf/plat/rockchip/common/plat_topology.c (revision 6331a31a66cdcf53421d3dccd3067f072c6da175)
1 /*
2  * Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *
7  * Redistributions of source code must retain the above copyright notice, this
8  * list of conditions and the following disclaimer.
9  *
10  * Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  *
14  * Neither the name of ARM nor the names of its contributors may be used
15  * to endorse or promote products derived from this software without specific
16  * prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28  * POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #include <arch.h>
32 #include <platform_def.h>
33 #include <plat_private.h>
34 #include <psci.h>
35 
36 /*******************************************************************************
37  * This function returns the RockChip default topology tree information.
38  ******************************************************************************/
39 const unsigned char *plat_get_power_domain_tree_desc(void)
40 {
41 	return rockchip_power_domain_tree_desc;
42 }
43 
44 int plat_core_pos_by_mpidr(u_register_t mpidr)
45 {
46 	unsigned int cluster_id, cpu_id;
47 
48 	cpu_id = MPIDR_AFFLVL0_VAL(mpidr);
49 	cluster_id = MPIDR_AFFLVL1_VAL(mpidr);
50 
51 	if (cluster_id >= PLATFORM_CLUSTER_COUNT)
52 		return -1;
53 
54 	return ((cluster_id * PLATFORM_CLUSTER0_CORE_COUNT) + cpu_id);
55 }
56