1/*
2 * Entry of the second core for CSR Marco dual-core SMP SoCs
3 *
4 * Copyright (c) 2012 Cambridge Silicon Radio Limited, a CSR plc group company.
5 *
6 * Licensed under GPLv2 or later.
7 */
8
9#include <linux/linkage.h>
10#include <linux/init.h>
11
12/*
13 * SIRFSOC specific entry point for secondary CPUs.  This provides
14 * a "holding pen" into which all secondary cores are held until we're
15 * ready for them to initialise.
16 */
17ENTRY(sirfsoc_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
24pen:    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
33ENDPROC(sirfsoc_secondary_startup)
34
35        .align
361:      .long   .
37        .long   pen_release
38