| /* |
| * Copyright (c) 2018-2021, Arm Limited and Contributors. All rights reserved. |
| * Copyright (c) 2018-2022, Xilinx, Inc. All rights reserved. |
| * Copyright (c) 2022-2024, Advanced Micro Devices, Inc. All rights reserved. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #include <arch.h> |
| #include <asm_macros.S> |
| #include <drivers/arm/gicv3.h> |
| |
| #include <platform_def.h> |
| |
| .globl plat_secondary_cold_boot_setup |
| .globl plat_is_my_cpu_primary |
| .globl platform_mem_init |
| .globl plat_my_core_pos |
| |
| /* ----------------------------------------------------- |
| * void plat_secondary_cold_boot_setup (void); |
| * |
| * This function performs any platform specific actions |
| * needed for a secondary cpu after a cold reset e.g |
| * mark the cpu's presence, mechanism to place it in a |
| * holding pen etc. |
| * TODO: Should we read the PSYS register to make sure |
| * that the request has gone through. |
| * ----------------------------------------------------- |
| */ |
| func plat_secondary_cold_boot_setup |
| mrs x0, mpidr_el1 |
| |
| /* |
| * There is no sane reason to come out of this wfi. This |
| * cpu will be powered on and reset by the cpu_on pm api |
| */ |
| dsb sy |
| bl plat_panic_handler |
| endfunc plat_secondary_cold_boot_setup |
| |
| func plat_is_my_cpu_primary |
| mov x9, x30 |
| bl plat_my_core_pos |
| cmp x0, #PRIMARY_CPU |
| cset x0, eq |
| ret x9 |
| endfunc plat_is_my_cpu_primary |
| |
| /* ----------------------------------------------------- |
| * unsigned int plat_my_core_pos(void) |
| * This function uses the plat_core_pos_by_mpidr() |
| * definition to get the index of the calling CPU. |
| * ----------------------------------------------------- |
| */ |
| func plat_my_core_pos |
| mrs x0, mpidr_el1 |
| b plat_core_pos_by_mpidr |
| endfunc plat_my_core_pos |
| |
| /* --------------------------------------------------------------------- |
| * We don't need to carry out any memory initialization on platform |
| * The Secure RAM is accessible straight away. |
| * --------------------------------------------------------------------- |
| */ |
| func platform_mem_init |
| ret |
| endfunc platform_mem_init |
