Masahiro Yamada | d8e919c | 2016-09-03 11:37:40 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <arch.h> |
| 8 | #include <platform.h> |
| 9 | |
| 10 | #include "uniphier.h" |
| 11 | |
| 12 | static unsigned char uniphier_power_domain_tree_desc[UNIPHIER_CLUSTER_COUNT + 1]; |
| 13 | |
| 14 | const unsigned char *plat_get_power_domain_tree_desc(void) |
| 15 | { |
| 16 | int i; |
| 17 | |
| 18 | uniphier_power_domain_tree_desc[0] = UNIPHIER_CLUSTER_COUNT; |
| 19 | |
| 20 | for (i = 0; i < UNIPHIER_CLUSTER_COUNT; i++) |
| 21 | uniphier_power_domain_tree_desc[i + 1] = |
| 22 | UNIPHIER_MAX_CPUS_PER_CLUSTER; |
| 23 | |
| 24 | return uniphier_power_domain_tree_desc; |
| 25 | } |
| 26 | |
| 27 | int plat_core_pos_by_mpidr(u_register_t mpidr) |
| 28 | { |
| 29 | unsigned int cluster_id, cpu_id; |
| 30 | |
| 31 | cluster_id = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK; |
| 32 | if (cluster_id >= UNIPHIER_CLUSTER_COUNT) |
| 33 | return -1; |
| 34 | |
| 35 | cpu_id = (mpidr >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK; |
| 36 | if (cpu_id >= UNIPHIER_MAX_CPUS_PER_CLUSTER) |
| 37 | return -1; |
| 38 | |
| 39 | return uniphier_calc_core_pos(mpidr); |
| 40 | } |