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Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001/* linux/arch/arm/mach-s3c2416/s3c2416.c
2 *
3 * Copyright (c) 2009 Yauhen Kharuzhy <jekhor@gmail.com>,
4 * as part of OpenInkpot project
5 * Copyright (c) 2009 Promwad Innovation Company
6 * Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com>
7 *
8 * Samsung S3C2416 Mobile CPU support
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23*/
24
25#include <linux/kernel.h>
26#include <linux/types.h>
27#include <linux/interrupt.h>
28#include <linux/list.h>
29#include <linux/timer.h>
30#include <linux/init.h>
Ben Dookseb90de42010-04-30 19:48:02 +090031#include <linux/gpio.h>
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090032#include <linux/platform_device.h>
33#include <linux/serial_core.h>
34#include <linux/sysdev.h>
35#include <linux/clk.h>
36#include <linux/io.h>
37
38#include <asm/mach/arch.h>
39#include <asm/mach/map.h>
40#include <asm/mach/irq.h>
41
42#include <mach/hardware.h>
43#include <asm/proc-fns.h>
44#include <asm/irq.h>
45
46#include <mach/reset.h>
47#include <mach/idle.h>
48#include <mach/regs-s3c2443-clock.h>
49
Ben Dookseb90de42010-04-30 19:48:02 +090050#include <plat/gpio-core.h>
51#include <plat/gpio-cfg.h>
52#include <plat/gpio-cfg-helpers.h>
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090053#include <plat/s3c2416.h>
54#include <plat/devs.h>
55#include <plat/cpu.h>
56
Ben Dookse12ef7f2010-05-03 16:44:35 +090057#include <plat/iic-core.h>
Pawel Osciakeb42b042010-08-10 18:02:37 -070058#include <plat/fb-core.h>
Ben Dookse12ef7f2010-05-03 16:44:35 +090059
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090060static struct map_desc s3c2416_iodesc[] __initdata = {
61 IODESC_ENT(WATCHDOG),
62 IODESC_ENT(CLKPWR),
63 IODESC_ENT(TIMER),
64};
65
66struct sysdev_class s3c2416_sysclass = {
67 .name = "s3c2416-core",
68};
69
70static struct sys_device s3c2416_sysdev = {
71 .cls = &s3c2416_sysclass,
72};
73
74static void s3c2416_hard_reset(void)
75{
76 __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST);
77}
78
79int __init s3c2416_init(void)
80{
81 printk(KERN_INFO "S3C2416: Initializing architecture\n");
82
83 s3c24xx_reset_hook = s3c2416_hard_reset;
84 /* s3c24xx_idle = s3c2416_idle; */
85
86 /* change WDT IRQ number */
87 s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
88 s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT;
89
Ben Dookse12ef7f2010-05-03 16:44:35 +090090 /* the i2c devices are directly compatible with s3c2440 */
91 s3c_i2c0_setname("s3c2440-i2c");
92 s3c_i2c1_setname("s3c2440-i2c");
93
Pawel Osciakeb42b042010-08-10 18:02:37 -070094 s3c_fb_setname("s3c2443-fb");
Ben Dooksf64bea42010-05-03 15:29:44 +090095
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090096 return sysdev_register(&s3c2416_sysdev);
97}
98
99void __init s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no)
100{
101 s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
102
103 s3c_device_nand.name = "s3c2416-nand";
104}
105
106/* s3c2416_map_io
107 *
108 * register the standard cpu IO areas, and any passed in from the
109 * machine specific initialisation.
110 */
111
112void __init s3c2416_map_io(void)
113{
Ben Dookseb90de42010-04-30 19:48:02 +0900114 s3c24xx_gpiocfg_default.set_pull = s3c_gpio_setpull_updown;
115 s3c24xx_gpiocfg_default.get_pull = s3c_gpio_getpull_updown;
116
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900117 iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc));
118}
119
120/* need to register class before we actually register the device, and
121 * we also need to ensure that it has been initialised before any of the
122 * drivers even try to use it (even if not on an s3c2416 based system)
123 * as a driver which may support both 2443 and 2440 may try and use it.
124*/
125
126static int __init s3c2416_core_init(void)
127{
128 return sysdev_class_register(&s3c2416_sysclass);
129}
130
131core_initcall(s3c2416_core_init);