| /* | |
| * Copyright (c) 2018, Arm Limited. All rights reserved. | |
| * | |
| * SPDX-License-Identifier: BSD-3-Clause | |
| */ | |
| #include <arch.h> | |
| #include <asm_macros.S> | |
| .globl platform_get_core_pos | |
| /* | |
| * Return 0 to 3 for the Cortex-A53 cores and 4 to 5 for the Cortex-A57 | |
| * cores. | |
| */ | |
| func platform_get_core_pos | |
| and r1, r0, #MPIDR_CPU_MASK | |
| and r0, r0, #MPIDR_CLUSTER_MASK | |
| /* Swap Cortex-A53/Cortex-A57 order. */ | |
| eor r0, r0, #(1 << MPIDR_AFF1_SHIFT) | |
| add r0, r1, r0, LSR #6 | |
| bx lr | |
| endfunc platform_get_core_pos |