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https://github.com/ARM-software/arm-trusted-firmware.git
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d8e919c7b8
Initial commit for Socionext UniPhier SoC support. BL1, Bl2, and BL31 are supported. Refer to docs/plat/socionext-uniphier.md for more detais. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
40 lines
941 B
C
40 lines
941 B
C
/*
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* Copyright (c) 2017, 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 <platform.h>
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#include "uniphier.h"
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static unsigned char uniphier_power_domain_tree_desc[UNIPHIER_CLUSTER_COUNT + 1];
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const unsigned char *plat_get_power_domain_tree_desc(void)
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{
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int i;
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uniphier_power_domain_tree_desc[0] = UNIPHIER_CLUSTER_COUNT;
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for (i = 0; i < UNIPHIER_CLUSTER_COUNT; i++)
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uniphier_power_domain_tree_desc[i + 1] =
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UNIPHIER_MAX_CPUS_PER_CLUSTER;
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return uniphier_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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cluster_id = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK;
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if (cluster_id >= UNIPHIER_CLUSTER_COUNT)
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return -1;
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cpu_id = (mpidr >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK;
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if (cpu_id >= UNIPHIER_MAX_CPUS_PER_CLUSTER)
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return -1;
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return uniphier_calc_core_pos(mpidr);
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}
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