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/platform_device.h>
20#include <linux/serial_core.h>
21#include <linux/sysdev.h>
22#include <linux/clk.h>
23
24#include <asm/mach/arch.h>
25#include <asm/mach/map.h>
26#include <asm/mach/irq.h>
27
28#include <asm/hardware.h>
29#include <asm/io.h>
30#include <asm/irq.h>
31
32#include <asm/arch/regs-s3c2443-clock.h>
33#include <asm/arch/reset.h>
34
35#include <asm/plat-s3c24xx/s3c2443.h>
36#include <asm/plat-s3c24xx/devs.h>
37#include <asm/plat-s3c24xx/cpu.h>
38
39static struct map_desc s3c2443_iodesc[] __initdata = {
40	IODESC_ENT(WATCHDOG),
41	IODESC_ENT(CLKPWR),
42	IODESC_ENT(TIMER),
43};
44
45struct sysdev_class s3c2443_sysclass = {
46	set_kset_name("s3c2443-core"),
47};
48
49static struct sys_device s3c2443_sysdev = {
50	.cls		= &s3c2443_sysclass,
51};
52
53static void s3c2443_hard_reset(void)
54{
55	__raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST);
56}
57
58int __init s3c2443_init(void)
59{
60	printk("S3C2443: Initialising architecture\n");
61
62	s3c24xx_reset_hook = s3c2443_hard_reset;
63
64	s3c_device_nand.name = "s3c2412-nand";
65
66	/* change WDT IRQ number */
67	s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
68	s3c_device_wdt.resource[1].end   = IRQ_S3C2443_WDT;
69
70	return sysdev_register(&s3c2443_sysdev);
71}
72
73void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no)
74{
75	s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
76}
77
78/* s3c2443_map_io
79 *
80 * register the standard cpu IO areas, and any passed in from the
81 * machine specific initialisation.
82 */
83
84void __init s3c2443_map_io(struct map_desc *mach_desc, int mach_size)
85{
86	iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc));
87	iotable_init(mach_desc, mach_size);
88}
89
90/* need to register class before we actually register the device, and
91 * we also need to ensure that it has been initialised before any of the
92 * drivers even try to use it (even if not on an s3c2443 based system)
93 * as a driver which may support both 2443 and 2440 may try and use it.
94*/
95
96static int __init s3c2443_core_init(void)
97{
98	return sysdev_class_register(&s3c2443_sysclass);
99}
100
101core_initcall(s3c2443_core_init);
102