1/* linux/arch/arm/mach-s3c2443/s3c2443.c
2 *
3 * Copyright (c) 2007 Simtec Electronics
4 *   Ben Dooks <ben@simtec.co.uk>
5 *
6 * Samsung S3C2443 Mobile CPU support
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/platform_device.h>
21#include <linux/serial_core.h>
22#include <linux/device.h>
23#include <linux/clk.h>
24#include <linux/io.h>
25
26#include <asm/mach/arch.h>
27#include <asm/mach/map.h>
28#include <asm/mach/irq.h>
29
30#include <mach/hardware.h>
31#include <asm/irq.h>
32#include <asm/system_misc.h>
33
34#include <mach/regs-s3c2443-clock.h>
35
36#include <plat/gpio-core.h>
37#include <plat/gpio-cfg.h>
38#include <plat/gpio-cfg-helpers.h>
39#include <plat/s3c2443.h>
40#include <plat/devs.h>
41#include <plat/cpu.h>
42#include <plat/fb-core.h>
43#include <plat/nand-core.h>
44#include <plat/adc-core.h>
45#include <plat/rtc-core.h>
46
47static struct map_desc s3c2443_iodesc[] __initdata = {
48	IODESC_ENT(WATCHDOG),
49	IODESC_ENT(CLKPWR),
50	IODESC_ENT(TIMER),
51};
52
53struct bus_type s3c2443_subsys = {
54	.name = "s3c2443-core",
55	.dev_name = "s3c2443-core",
56};
57
58static struct device s3c2443_dev = {
59	.bus		= &s3c2443_subsys,
60};
61
62void s3c2443_restart(char mode, const char *cmd)
63{
64	if (mode == 's')
65		soft_restart(0);
66
67	__raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST);
68}
69
70int __init s3c2443_init(void)
71{
72	printk("S3C2443: Initialising architecture\n");
73
74	s3c_nand_setname("s3c2412-nand");
75	s3c_fb_setname("s3c2443-fb");
76
77	s3c_adc_setname("s3c2443-adc");
78	s3c_rtc_setname("s3c2443-rtc");
79
80	/* change WDT IRQ number */
81	s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
82	s3c_device_wdt.resource[1].end   = IRQ_S3C2443_WDT;
83
84	return device_register(&s3c2443_dev);
85}
86
87void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no)
88{
89	s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
90}
91
92/* s3c2443_map_io
93 *
94 * register the standard cpu IO areas, and any passed in from the
95 * machine specific initialisation.
96 */
97
98void __init s3c2443_map_io(void)
99{
100	s3c24xx_gpiocfg_default.set_pull = s3c2443_gpio_setpull;
101	s3c24xx_gpiocfg_default.get_pull = s3c2443_gpio_getpull;
102
103	iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc));
104}
105
106/* need to register the subsystem before we actually register the device, and
107 * we also need to ensure that it has been initialised before any of the
108 * drivers even try to use it (even if not on an s3c2443 based system)
109 * as a driver which may support both 2443 and 2440 may try and use it.
110*/
111
112static int __init s3c2443_core_init(void)
113{
114	return subsys_system_register(&s3c2443_subsys, NULL);
115}
116
117core_initcall(s3c2443_core_init);
118