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 #include <linux/reboot.h>
26
27 #include <asm/mach/arch.h>
28 #include <asm/mach/map.h>
29 #include <asm/mach/irq.h>
30
31 #include <mach/hardware.h>
32 #include <mach/gpio-samsung.h>
33 #include <asm/irq.h>
34 #include <asm/system_misc.h>
35
36 #include <mach/regs-s3c2443-clock.h>
37 #include <mach/rtc-core.h>
38
39 #include <plat/gpio-core.h>
40 #include <plat/gpio-cfg.h>
41 #include <plat/gpio-cfg-helpers.h>
42 #include <plat/devs.h>
43 #include <plat/cpu.h>
44 #include <plat/adc-core.h>
45
46 #include "fb-core.h"
47 #include "nand-core.h"
48 #include "spi-core.h"
49
50 static struct map_desc s3c2443_iodesc[] __initdata = {
51 IODESC_ENT(WATCHDOG),
52 IODESC_ENT(CLKPWR),
53 IODESC_ENT(TIMER),
54 };
55
56 struct bus_type s3c2443_subsys = {
57 .name = "s3c2443-core",
58 .dev_name = "s3c2443-core",
59 };
60
61 static struct device s3c2443_dev = {
62 .bus = &s3c2443_subsys,
63 };
64
s3c2443_init(void)65 int __init s3c2443_init(void)
66 {
67 printk("S3C2443: Initialising architecture\n");
68
69 s3c_nand_setname("s3c2412-nand");
70 s3c_fb_setname("s3c2443-fb");
71
72 s3c_adc_setname("s3c2443-adc");
73 s3c_rtc_setname("s3c2443-rtc");
74
75 /* change WDT IRQ number */
76 s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
77 s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT;
78
79 return device_register(&s3c2443_dev);
80 }
81
s3c2443_init_uarts(struct s3c2410_uartcfg * cfg,int no)82 void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no)
83 {
84 s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
85 }
86
87 /* s3c2443_map_io
88 *
89 * register the standard cpu IO areas, and any passed in from the
90 * machine specific initialisation.
91 */
92
s3c2443_map_io(void)93 void __init s3c2443_map_io(void)
94 {
95 s3c24xx_gpiocfg_default.set_pull = s3c2443_gpio_setpull;
96 s3c24xx_gpiocfg_default.get_pull = s3c2443_gpio_getpull;
97
98 /* initialize device information early */
99 s3c64xx_spi_setname("s3c2443-spi");
100
101 iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc));
102 }
103
104 /* need to register the subsystem before we actually register the device, and
105 * we also need to ensure that it has been initialised before any of the
106 * drivers even try to use it (even if not on an s3c2443 based system)
107 * as a driver which may support both 2443 and 2440 may try and use it.
108 */
109
s3c2443_core_init(void)110 static int __init s3c2443_core_init(void)
111 {
112 return subsys_system_register(&s3c2443_subsys, NULL);
113 }
114
115 core_initcall(s3c2443_core_init);
116