1/* linux/arch/arm/mach-s3c2410/s3c2410.c
2 *
3 * Copyright (c) 2003-2005 Simtec Electronics
4 *	Ben Dooks <ben@simtec.co.uk>
5 *
6 * http://www.simtec.co.uk/products/EB2410ITX/
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#include <linux/kernel.h>
14#include <linux/types.h>
15#include <linux/interrupt.h>
16#include <linux/list.h>
17#include <linux/timer.h>
18#include <linux/init.h>
19#include <linux/gpio.h>
20#include <linux/clk.h>
21#include <linux/device.h>
22#include <linux/syscore_ops.h>
23#include <linux/serial_core.h>
24#include <linux/serial_s3c.h>
25#include <linux/platform_device.h>
26#include <linux/reboot.h>
27#include <linux/io.h>
28
29#include <asm/mach/arch.h>
30#include <asm/mach/map.h>
31#include <asm/mach/irq.h>
32
33#include <mach/hardware.h>
34#include <mach/gpio-samsung.h>
35#include <asm/irq.h>
36#include <asm/system_misc.h>
37
38#include <plat/cpu-freq.h>
39
40#include <mach/regs-clock.h>
41
42#include <plat/cpu.h>
43#include <plat/devs.h>
44#include <plat/pm.h>
45
46#include <plat/gpio-core.h>
47#include <plat/gpio-cfg.h>
48#include <plat/gpio-cfg-helpers.h>
49
50#include "common.h"
51
52/* Initial IO mappings */
53
54static struct map_desc s3c2410_iodesc[] __initdata = {
55	IODESC_ENT(CLKPWR),
56	IODESC_ENT(TIMER),
57	IODESC_ENT(WATCHDOG),
58};
59
60/* our uart devices */
61
62/* uart registration process */
63
64void __init s3c2410_init_uarts(struct s3c2410_uartcfg *cfg, int no)
65{
66	s3c24xx_init_uartdevs("s3c2410-uart", s3c2410_uart_resources, cfg, no);
67}
68
69/* s3c2410_map_io
70 *
71 * register the standard cpu IO areas, and any passed in from the
72 * machine specific initialisation.
73*/
74
75void __init s3c2410_map_io(void)
76{
77	s3c24xx_gpiocfg_default.set_pull = s3c24xx_gpio_setpull_1up;
78	s3c24xx_gpiocfg_default.get_pull = s3c24xx_gpio_getpull_1up;
79
80	iotable_init(s3c2410_iodesc, ARRAY_SIZE(s3c2410_iodesc));
81}
82
83struct bus_type s3c2410_subsys = {
84	.name = "s3c2410-core",
85	.dev_name = "s3c2410-core",
86};
87
88/* Note, we would have liked to name this s3c2410-core, but we cannot
89 * register two subsystems with the same name.
90 */
91struct bus_type s3c2410a_subsys = {
92	.name = "s3c2410a-core",
93	.dev_name = "s3c2410a-core",
94};
95
96static struct device s3c2410_dev = {
97	.bus		= &s3c2410_subsys,
98};
99
100/* need to register the subsystem before we actually register the device, and
101 * we also need to ensure that it has been initialised before any of the
102 * drivers even try to use it (even if not on an s3c2410 based system)
103 * as a driver which may support both 2410 and 2440 may try and use it.
104*/
105
106static int __init s3c2410_core_init(void)
107{
108	return subsys_system_register(&s3c2410_subsys, NULL);
109}
110
111core_initcall(s3c2410_core_init);
112
113static int __init s3c2410a_core_init(void)
114{
115	return subsys_system_register(&s3c2410a_subsys, NULL);
116}
117
118core_initcall(s3c2410a_core_init);
119
120int __init s3c2410_init(void)
121{
122	printk("S3C2410: Initialising architecture\n");
123
124#ifdef CONFIG_PM_SLEEP
125	register_syscore_ops(&s3c2410_pm_syscore_ops);
126	register_syscore_ops(&s3c24xx_irq_syscore_ops);
127#endif
128
129	return device_register(&s3c2410_dev);
130}
131
132int __init s3c2410a_init(void)
133{
134	s3c2410_dev.bus = &s3c2410a_subsys;
135	return s3c2410_init();
136}
137