diff options
Diffstat (limited to 'arch/arm/mach-s5pv310/headsmp.S')
-rw-r--r-- | arch/arm/mach-s5pv310/headsmp.S | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pv310/headsmp.S b/arch/arm/mach-s5pv310/headsmp.S new file mode 100644 index 000000000000..164b7b045713 --- /dev/null +++ b/arch/arm/mach-s5pv310/headsmp.S | |||
@@ -0,0 +1,41 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/mach-s5pv310/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 | * s5pv310 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 | */ | ||
23 | ENTRY(s5pv310_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 | ||
30 | pen: 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 | |||
40 | 1: .long . | ||
41 | .long pen_release | ||