59 lines
1.5 KiB
ArmAsm
59 lines
1.5 KiB
ArmAsm
/*
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* Copyright (c) 2019, Arm Limited. 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 <asm_macros.S>
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#include <platform_def.h>
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.globl plat_secondary_cold_boot_setup
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.globl plat_get_my_entrypoint
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.globl plat_is_my_cpu_primary
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/* --------------------------------------------------------------------
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* void plat_secondary_cold_boot_setup (void);
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*
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* For AArch32, cold-booting secondary CPUs is not yet
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* implemented and they panic.
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* --------------------------------------------------------------------
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*/
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func plat_secondary_cold_boot_setup
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cb_panic:
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wfi
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b cb_panic
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endfunc plat_secondary_cold_boot_setup
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/* ---------------------------------------------------------------------
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* unsigned long plat_get_my_entrypoint (void);
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*
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* Main job of this routine is to distinguish between a cold and warm
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* boot.
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* ---------------------------------------------------------------------
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*/
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func plat_get_my_entrypoint
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/* TODO support warm boot */
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/* Cold reset */
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mov r0, #0
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bx lr
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endfunc plat_get_my_entrypoint
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/* -----------------------------------------------------
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* unsigned int plat_is_my_cpu_primary (void);
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*
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* Find out whether the current cpu is the primary
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* cpu.
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* -----------------------------------------------------
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*/
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func plat_is_my_cpu_primary
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ldcopr r0, MPIDR
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ldr r1, =MPIDR_AFFINITY_MASK
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and r0, r1
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cmp r0, #0
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moveq r0, #1
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movne r0, #0
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bx lr
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endfunc plat_is_my_cpu_primary
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