5113f6f70
 김현기
kernel add
|
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
|
/*
* Copyright (c) 2003 ARM Limited
* Copyright (c) u-boot contributors
* Copyright (c) 2012 Pavel Machek <pavel@denx.de>
*
* 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>
#include <asm/memory.h>
#include <asm/assembler.h>
.arch armv7-a
.arm
ENTRY(secondary_trampoline)
/* CPU1 will always fetch from 0x0 when it is brought out of reset.
* Thus, we can just subtract the PAGE_OFFSET to get the physical
* address of &cpu1start_addr. This would not work for platforms
* where the physical memory does not start at 0x0.
*/
ARM_BE8(setend be)
adr r0, 1f
ldmia r0, {r1, r2}
sub r2, r2, #PAGE_OFFSET
ldr r3, [r2]
ldr r4, [r3]
ARM_BE8(rev r4, r4)
bx r4
.align
1: .long .
.long socfpga_cpu1start_addr
ENTRY(secondary_trampoline_end)
|