1 /* linux/arch/arm/mach-s3c2443/s3c2443.c
3 * Copyright (c) 2007 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
6 * Samsung S3C2443 Mobile CPU support
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/platform_device.h>
21 #include <linux/serial_core.h>
22 #include <linux/device.h>
23 #include <linux/clk.h>
26 #include <asm/mach/arch.h>
27 #include <asm/mach/map.h>
28 #include <asm/mach/irq.h>
30 #include <mach/hardware.h>
33 #include <mach/regs-s3c2443-clock.h>
35 #include <plat/gpio-core.h>
36 #include <plat/gpio-cfg.h>
37 #include <plat/gpio-cfg-helpers.h>
38 #include <plat/s3c2443.h>
39 #include <plat/devs.h>
41 #include <plat/fb-core.h>
42 #include <plat/nand-core.h>
43 #include <plat/adc-core.h>
44 #include <plat/rtc-core.h>
46 static struct map_desc s3c2443_iodesc[] __initdata = {
52 struct bus_type s3c2443_subsys = {
53 .name = "s3c2443-core",
54 .dev_name = "s3c2443-core",
57 static struct device s3c2443_dev = {
58 .bus = &s3c2443_subsys,
61 void s3c2443_restart(char mode, const char *cmd)
66 __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST);
69 int __init s3c2443_init(void)
71 printk("S3C2443: Initialising architecture\n");
73 s3c_nand_setname("s3c2412-nand");
74 s3c_fb_setname("s3c2443-fb");
76 s3c_adc_setname("s3c2443-adc");
77 s3c_rtc_setname("s3c2443-rtc");
79 /* change WDT IRQ number */
80 s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
81 s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT;
83 return device_register(&s3c2443_dev);
86 void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no)
88 s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
93 * register the standard cpu IO areas, and any passed in from the
94 * machine specific initialisation.
97 void __init s3c2443_map_io(void)
99 s3c24xx_gpiocfg_default.set_pull = s3c2443_gpio_setpull;
100 s3c24xx_gpiocfg_default.get_pull = s3c2443_gpio_getpull;
102 iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc));
105 /* need to register the subsystem before we actually register the device, and
106 * we also need to ensure that it has been initialised before any of the
107 * drivers even try to use it (even if not on an s3c2443 based system)
108 * as a driver which may support both 2443 and 2440 may try and use it.
111 static int __init s3c2443_core_init(void)
113 return subsys_system_register(&s3c2443_subsys, NULL);
116 core_initcall(s3c2443_core_init);