1 /* linux/arch/arm/mach-s3c2410/s3c2410.c
3 * Copyright (c) 2003-2005 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
6 * http://www.simtec.co.uk/products/EB2410ITX/
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.
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>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/map.h>
31 #include <asm/mach/irq.h>
33 #include <mach/hardware.h>
34 #include <mach/gpio-samsung.h>
36 #include <asm/system_misc.h>
38 #include <plat/cpu-freq.h>
40 #include <mach/regs-clock.h>
43 #include <plat/devs.h>
46 #include <plat/gpio-core.h>
47 #include <plat/gpio-cfg.h>
48 #include <plat/gpio-cfg-helpers.h>
52 /* Initial IO mappings */
54 static struct map_desc s3c2410_iodesc[] __initdata = {
60 /* our uart devices */
62 /* uart registration process */
64 void __init s3c2410_init_uarts(struct s3c2410_uartcfg *cfg, int no)
66 s3c24xx_init_uartdevs("s3c2410-uart", s3c2410_uart_resources, cfg, no);
71 * register the standard cpu IO areas, and any passed in from the
72 * machine specific initialisation.
75 void __init s3c2410_map_io(void)
77 s3c24xx_gpiocfg_default.set_pull = s3c24xx_gpio_setpull_1up;
78 s3c24xx_gpiocfg_default.get_pull = s3c24xx_gpio_getpull_1up;
80 iotable_init(s3c2410_iodesc, ARRAY_SIZE(s3c2410_iodesc));
83 struct bus_type s3c2410_subsys = {
84 .name = "s3c2410-core",
85 .dev_name = "s3c2410-core",
88 /* Note, we would have liked to name this s3c2410-core, but we cannot
89 * register two subsystems with the same name.
91 struct bus_type s3c2410a_subsys = {
92 .name = "s3c2410a-core",
93 .dev_name = "s3c2410a-core",
96 static struct device s3c2410_dev = {
97 .bus = &s3c2410_subsys,
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.
106 static int __init s3c2410_core_init(void)
108 return subsys_system_register(&s3c2410_subsys, NULL);
111 core_initcall(s3c2410_core_init);
113 static int __init s3c2410a_core_init(void)
115 return subsys_system_register(&s3c2410a_subsys, NULL);
118 core_initcall(s3c2410a_core_init);
120 int __init s3c2410_init(void)
122 printk("S3C2410: Initialising architecture\n");
124 #ifdef CONFIG_PM_SLEEP
125 register_syscore_ops(&s3c2410_pm_syscore_ops);
126 register_syscore_ops(&s3c24xx_irq_syscore_ops);
129 return device_register(&s3c2410_dev);
132 int __init s3c2410a_init(void)
134 s3c2410_dev.bus = &s3c2410a_subsys;
135 return s3c2410_init();