aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-s3c/s3c2410.c
blob: 4d39d9939c2f9453863499a4997ca9a37ab77134 (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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2003-2005 Simtec Electronics
//	Ben Dooks <ben@simtec.co.uk>
//
// http://www.simtec.co.uk/products/EB2410ITX/

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/syscore_ops.h>
#include <linux/serial_core.h>
#include <linux/serial_s3c.h>
#include <linux/platform_device.h>
#include <linux/reboot.h>
#include <linux/io.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include "map.h"
#include "gpio-samsung.h"
#include <asm/irq.h>
#include <asm/system_misc.h>


#include "regs-clock.h"

#include "cpu.h"
#include "devs.h"
#include "pm.h"

#include "gpio-core.h"
#include "gpio-cfg.h"
#include "gpio-cfg-helpers.h"

#include "s3c24xx.h"

/* Initial IO mappings */

static struct map_desc s3c2410_iodesc[] __initdata __maybe_unused = {
	IODESC_ENT(CLKPWR),
	IODESC_ENT(TIMER),
	IODESC_ENT(WATCHDOG),
};

/* our uart devices */

/* uart registration process */

void __init s3c2410_init_uarts(struct s3c2410_uartcfg *cfg, int no)
{
	s3c24xx_init_uartdevs("s3c2410-uart", s3c2410_uart_resources, cfg, no);
}

/* s3c2410_map_io
 *
 * register the standard cpu IO areas, and any passed in from the
 * machine specific initialisation.
*/

void __init s3c2410_map_io(void)
{
	s3c24xx_gpiocfg_default.set_pull = s3c24xx_gpio_setpull_1up;
	s3c24xx_gpiocfg_default.get_pull = s3c24xx_gpio_getpull_1up;

	iotable_init(s3c2410_iodesc, ARRAY_SIZE(s3c2410_iodesc));
}

struct bus_type s3c2410_subsys = {
	.name = "s3c2410-core",
	.dev_name = "s3c2410-core",
};

/* Note, we would have liked to name this s3c2410-core, but we cannot
 * register two subsystems with the same name.
 */
struct bus_type s3c2410a_subsys = {
	.name = "s3c2410a-core",
	.dev_name = "s3c2410a-core",
};

static struct device s3c2410_dev = {
	.bus		= &s3c2410_subsys,
};

/* need to register the subsystem before we actually register the device, and
 * we also need to ensure that it has been initialised before any of the
 * drivers even try to use it (even if not on an s3c2410 based system)
 * as a driver which may support both 2410 and 2440 may try and use it.
*/

static int __init s3c2410_core_init(void)
{
	return subsys_system_register(&s3c2410_subsys, NULL);
}

core_initcall(s3c2410_core_init);

static int __init s3c2410a_core_init(void)
{
	return subsys_system_register(&s3c2410a_subsys, NULL);
}

core_initcall(s3c2410a_core_init);

int __init s3c2410_init(void)
{
	printk("S3C2410: Initialising architecture\n");

#ifdef CONFIG_PM_SLEEP
	register_syscore_ops(&s3c2410_pm_syscore_ops);
	register_syscore_ops(&s3c24xx_irq_syscore_ops);
#endif

	return device_register(&s3c2410_dev);
}

int __init s3c2410a_init(void)
{
	s3c2410_dev.bus = &s3c2410a_subsys;
	return s3c2410_init();
}