blob: d51bfcc143190fe77fde44c855253efeea58a263 (
plain)
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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
/*
* This file is part of the coreboot project.
*
* Copyright 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc.
*/
#include <arch/cache.h>
#include <arch/cpu.h>
#include <arch/mmu.h>
#include <arch/stages.h>
#include <arch/startup.h>
#include "cpu-internal.h"
void __attribute__((weak)) arm64_soc_init(void)
{
/* Default weak implementation does nothing. */
}
static void seed_stack(void)
{
char *stack_begin;
uint64_t *slot;
int i;
int size;
stack_begin = cpu_get_stack(smp_processor_id());
stack_begin -= CONFIG_STACK_SIZE;
slot = (void *)stack_begin;
/* Pad out 256 bytes for current usage. */
size = CONFIG_STACK_SIZE - 256;
size /= sizeof(*slot);
for (i = 0; i < size; i++)
*slot++ = 0xdeadbeefdeadbeefULL;
}
static void arm64_init(void)
{
cpu_set_bsp();
seed_stack();
arm64_soc_init();
main();
}
/*
* This variable holds entry point for CPUs starting up. The first
* element is the BSP path, and the second is the non-BSP path.
*/
void (*c_entry[2])(void) = { &arm64_init, &arch_secondary_cpu_init };
void *prepare_secondary_cpu_startup(void)
{
startup_save_cpu_data();
return secondary_entry_point(&arm64_cpu_startup_resume);
}
|
