1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
| /*
| * arch/arm/mach-sti/headsmp.S
| *
| * Copyright (C) 2013 STMicroelectronics (R&D) Limited.
| * http://www.st.com
| *
| * Cloned from linux/arch/arm/mach-vexpress/headsmp.S
| *
| * Copyright (c) 2003 ARM Limited
| * All Rights Reserved
| *
| * This program is free software; you can redistribute it and/or modify
| * it under the terms of the GNU General Public License version 2 as
| * published by the Free Software Foundation.
| */
| #include <linux/linkage.h>
| #include <linux/init.h>
|
| /*
| * ST specific entry point for secondary CPUs. This provides
| * a "holding pen" into which all secondary cores are held until we're
| * ready for them to initialise.
| */
| ENTRY(sti_secondary_startup)
| mrc p15, 0, r0, c0, c0, 5
| and r0, r0, #15
| adr r4, 1f
| ldmia r4, {r5, r6}
| sub r4, r4, r5
| add r6, r6, r4
| pen: ldr r7, [r6]
| cmp r7, r0
| bne pen
|
| /*
| * we've been released from the holding pen: secondary_stack
| * should now contain the SVC stack for this core
| */
| b secondary_startup
| ENDPROC(sti_secondary_startup)
|
| 1: .long .
| .long pen_release
|
|
