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Jeff Ohlsteine14411d2010-11-30 13:06:36 -08001/*
2 * linux/arch/arm/mach-realview/headsmp.S
3 *
4 * Copyright (c) 2003 ARM Limited
5 * All Rights Reserved
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#include <linux/linkage.h>
12#include <linux/init.h>
13
Stephen Boyd0693a312011-02-18 19:14:09 -080014 __CPUINIT
Jeff Ohlsteine14411d2010-11-30 13:06:36 -080015
16/*
17 * MSM specific entry point for secondary CPUs. This provides
18 * a "holding pen" into which all secondary cores are held until we're
19 * ready for them to initialise.
20 */
21ENTRY(msm_secondary_startup)
22 mrc p15, 0, r0, c0, c0, 5
23 and r0, r0, #15
24 adr r4, 1f
25 ldmia r4, {r5, r6}
26 sub r4, r4, r5
27 add r6, r6, r4
28pen: ldr r7, [r6]
29 cmp r7, r0
30 bne pen
31
32 /*
33 * we've been released from the holding pen: secondary_stack
34 * should now contain the SVC stack for this core
35 */
36 b secondary_startup
37
38 .align
391: .long .
40 .long pen_release