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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/sysdev.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
33#include <mach/regs-s3c2443-clock.h>
34#include <mach/reset.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
45static struct map_desc s3c2443_iodesc[] __initdata = {
46 IODESC_ENT(WATCHDOG),
47 IODESC_ENT(CLKPWR),
48 IODESC_ENT(TIMER),
49};
50
51struct sysdev_class s3c2443_sysclass = {
52 .name = "s3c2443-core",
53};
54
55static struct sys_device s3c2443_sysdev = {
56 .cls = &s3c2443_sysclass,
57};
58
59static void s3c2443_hard_reset(void)
60{
61 __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST);
62}
63
64int __init s3c2443_init(void)
65{
66 printk("S3C2443: Initialising architecture\n");
67
68 s3c24xx_reset_hook = s3c2443_hard_reset;
69
70 s3c_nand_setname("s3c2412-nand");
71 s3c_fb_setname("s3c2443-fb");
72
73 /* change WDT IRQ number */
74 s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
75 s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT;
76
77 return sysdev_register(&s3c2443_sysdev);
78}
79
80void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no)
81{
82 s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
83}
84
85/* s3c2443_map_io
86 *
87 * register the standard cpu IO areas, and any passed in from the
88 * machine specific initialisation.
89 */
90
91void __init s3c2443_map_io(void)
92{
93 s3c24xx_gpiocfg_default.set_pull = s3c_gpio_setpull_s3c2443;
94 s3c24xx_gpiocfg_default.get_pull = s3c_gpio_getpull_s3c2443;
95
96 iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc));
97}
98
99/* need to register class before we actually register the device, and
100 * we also need to ensure that it has been initialised before any of the
101 * drivers even try to use it (even if not on an s3c2443 based system)
102 * as a driver which may support both 2443 and 2440 may try and use it.
103*/
104
105static int __init s3c2443_core_init(void)
106{
107 return sysdev_class_register(&s3c2443_sysclass);
108}
109
110core_initcall(s3c2443_core_init);