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| /* SPDX-License-Identifier: GPL-2.0-only */
| /*
| * linux/arch/arm/plat-versatile/headsmp.S
| *
| * Copyright (c) 2003 ARM Limited
| * All Rights Reserved
| */
| #include <linux/linkage.h>
| #include <linux/init.h>
| #include <asm/assembler.h>
|
| /*
| * Realview/Versatile Express specific entry point for secondary CPUs.
| * This provides a "holding pen" into which all secondary cores are held
| * until we're ready for them to initialise.
| */
| ENTRY(versatile_secondary_startup)
| ARM_BE8(setend be)
| mrc p15, 0, r0, c0, c0, 5
| bic r0, #0xff000000
| adr r4, 1f
| ldmia r4, {r5, r6}
| sub r4, r4, r5
| add r6, r6, r4
| pen: ldr r7, [r6]
| cmp r7, r0
| bne pen
|
| /*
| * we've been released from the holding pen: secondary_stack
| * should now contain the SVC stack for this core
| */
| b secondary_startup
|
| .align
| 1: .long .
| .long versatile_cpu_release
| ENDPROC(versatile_secondary_startup)
|
|
