1/*
2 *  linux/arch/arm/mach-exynos4/headsmp.S
3 *
4 *  Cloned from linux/arch/arm/mach-realview/headsmp.S
5 *
6 *  Copyright (c) 2003 ARM Limited
7 *  All Rights Reserved
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13#include <linux/linkage.h>
14#include <linux/init.h>
15
16	__INIT
17
18/*
19 * exynos4 specific entry point for secondary CPUs.  This provides
20 * a "holding pen" into which all secondary cores are held until we're
21 * ready for them to initialise.
22 */
23ENTRY(exynos4_secondary_startup)
24	mrc	p15, 0, r0, c0, c0, 5
25	and	r0, r0, #15
26	adr	r4, 1f
27	ldmia	r4, {r5, r6}
28	sub	r4, r4, r5
29	add	r6, r6, r4
30pen:	ldr	r7, [r6]
31	cmp	r7, r0
32	bne	pen
33
34	/*
35	 * we've been released from the holding pen: secondary_stack
36	 * should now contain the SVC stack for this core
37	 */
38	b	secondary_startup
39
401:	.long	.
41	.long	pen_release
42