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[karo-tx-linux.git] / arch / arm / mach-ux500 / headsmp.S
1 /*
2  *  Copyright (c) 2009 ST-Ericsson
3  *      This file is based  ARM Realview platform
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
14 /*
15  * U8500 specific entry point for secondary CPUs.
16  */
17 ENTRY(u8500_secondary_startup)
18         mrc     p15, 0, r0, c0, c0, 5
19         and     r0, r0, #15
20         adr     r4, 1f
21         ldmia   r4, {r5, r6}
22         sub     r4, r4, r5
23         add     r6, r6, r4
24 pen:    ldr     r7, [r6]
25         cmp     r7, r0
26         bne     pen
27
28         /*
29          * we've been released from the holding pen: secondary_stack
30          * should now contain the SVC stack for this core
31          */
32         b       secondary_startup
33 ENDPROC(u8500_secondary_startup)
34
35         .align 2
36 1:      .long   .
37         .long   pen_release