blob: 48ce168fa73cb6f8db087e859341bd82950545ea (
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
|
/*
* Copyright (c) 2014 Samsung Electronics Co., Ltd.
*
* Exynos5433 suspend-to-ram support driver
*
* 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/of_address.h>
#include <linux/soc/samsung/exynos-pm.h>
#include <asm/io.h>
#include <asm/cpuidle.h>
#include <asm/suspend.h>
void __iomem *sysram_ns_base;
static int exynos5433_pm_suspend(void)
{
__raw_writel(virt_to_phys(cpu_resume), sysram_ns_base + 0x8);
__raw_writel(EXYNOS_CHECK_SLEEP, sysram_ns_base + 0xC);
return arm_cpuidle_suspend(0);
}
static struct exynos_pm_ops exynos5433_pm_ops = {
.suspend = exynos5433_pm_suspend,
};
static int __init exynos5433_pm_init(void)
{
struct device_node *of_node;
pr_info("Exynos suspend support initialize\n");
of_node = of_find_compatible_node(0, 0, "samsung,exynos5433-sysram-ns");
if (!of_node)
return -ENODEV;
sysram_ns_base = of_iomap(of_node, 0);
exynos_pm_init(&exynos5433_pm_ops);
return 0;
}
arch_initcall(exynos5433_pm_init);
|
