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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>
Kay Sievers4a858cf2011-12-21 16:01:38 -080034#include <linux/device.h>
Rafael J. Wysockibb072c32011-04-22 22:03:21 +020035#include <linux/syscore_ops.h>
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090036#include <linux/clk.h>
37#include <linux/io.h>
38
39#include <asm/mach/arch.h>
40#include <asm/mach/map.h>
41#include <asm/mach/irq.h>
42
43#include <mach/hardware.h>
44#include <asm/proc-fns.h>
45#include <asm/irq.h>
David Howells9f97da72012-03-28 18:30:01 +010046#include <asm/system_misc.h>
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090047
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090048#include <mach/idle.h>
49#include <mach/regs-s3c2443-clock.h>
50
Ben Dookseb90de42010-04-30 19:48:02 +090051#include <plat/gpio-core.h>
52#include <plat/gpio-cfg.h>
53#include <plat/gpio-cfg-helpers.h>
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090054#include <plat/s3c2416.h>
55#include <plat/devs.h>
56#include <plat/cpu.h>
Yauhen Kharuzhyc29cfa62010-12-17 14:42:09 +090057#include <plat/sdhci.h>
Rafael J. Wysockibb072c32011-04-22 22:03:21 +020058#include <plat/pm.h>
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090059
Ben Dookse12ef7f2010-05-03 16:44:35 +090060#include <plat/iic-core.h>
Pawel Osciakeb42b042010-08-10 18:02:37 -070061#include <plat/fb-core.h>
Atul Dahiyaef3f2dd2010-10-18 19:56:45 +090062#include <plat/nand-core.h>
Heiko Stuebner35cc3ce2011-10-12 21:34:12 +090063#include <plat/adc-core.h>
Ben Dookse12ef7f2010-05-03 16:44:35 +090064
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090065static struct map_desc s3c2416_iodesc[] __initdata = {
66 IODESC_ENT(WATCHDOG),
67 IODESC_ENT(CLKPWR),
68 IODESC_ENT(TIMER),
69};
70
Kay Sievers4a858cf2011-12-21 16:01:38 -080071struct bus_type s3c2416_subsys = {
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090072 .name = "s3c2416-core",
Kay Sievers4a858cf2011-12-21 16:01:38 -080073 .dev_name = "s3c2416-core",
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090074};
75
Kay Sievers4a858cf2011-12-21 16:01:38 -080076static struct device s3c2416_dev = {
77 .bus = &s3c2416_subsys,
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090078};
79
Heiko Stuebner57538972011-12-22 23:37:44 +010080void s3c2416_restart(char mode, const char *cmd)
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090081{
Heiko Stuebner57538972011-12-22 23:37:44 +010082 if (mode == 's')
83 soft_restart(0);
84
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090085 __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST);
86}
87
88int __init s3c2416_init(void)
89{
90 printk(KERN_INFO "S3C2416: Initializing architecture\n");
91
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +090092 /* s3c24xx_idle = s3c2416_idle; */
93
94 /* change WDT IRQ number */
95 s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
96 s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT;
97
Ben Dookse12ef7f2010-05-03 16:44:35 +090098 /* the i2c devices are directly compatible with s3c2440 */
99 s3c_i2c0_setname("s3c2440-i2c");
100 s3c_i2c1_setname("s3c2440-i2c");
101
Pawel Osciakeb42b042010-08-10 18:02:37 -0700102 s3c_fb_setname("s3c2443-fb");
Ben Dooksf64bea42010-05-03 15:29:44 +0900103
Heiko Stuebner35cc3ce2011-10-12 21:34:12 +0900104 s3c_adc_setname("s3c2416-adc");
105
Domenico Andreolifb630b92011-10-22 04:00:53 +0900106#ifdef CONFIG_PM
Rafael J. Wysockibb072c32011-04-22 22:03:21 +0200107 register_syscore_ops(&s3c2416_pm_syscore_ops);
Domenico Andreolifb630b92011-10-22 04:00:53 +0900108#endif
Rafael J. Wysockibb072c32011-04-22 22:03:21 +0200109 register_syscore_ops(&s3c24xx_irq_syscore_ops);
110
Kay Sievers4a858cf2011-12-21 16:01:38 -0800111 return device_register(&s3c2416_dev);
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900112}
113
114void __init s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no)
115{
116 s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
117
Atul Dahiya4bc77862010-10-18 19:56:49 +0900118 s3c_nand_setname("s3c2412-nand");
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900119}
120
121/* s3c2416_map_io
122 *
123 * register the standard cpu IO areas, and any passed in from the
124 * machine specific initialisation.
125 */
126
127void __init s3c2416_map_io(void)
128{
Kukjin Kim782d8a32011-08-30 20:47:32 +0900129 s3c24xx_gpiocfg_default.set_pull = samsung_gpio_setpull_updown;
130 s3c24xx_gpiocfg_default.get_pull = samsung_gpio_getpull_updown;
Ben Dookseb90de42010-04-30 19:48:02 +0900131
Yauhen Kharuzhyc29cfa62010-12-17 14:42:09 +0900132 /* initialize device information early */
133 s3c2416_default_sdhci0();
134 s3c2416_default_sdhci1();
135
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900136 iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc));
137}
138
Kay Sievers4a858cf2011-12-21 16:01:38 -0800139/* need to register the subsystem before we actually register the device, and
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900140 * we also need to ensure that it has been initialised before any of the
141 * drivers even try to use it (even if not on an s3c2416 based system)
142 * as a driver which may support both 2443 and 2440 may try and use it.
143*/
144
145static int __init s3c2416_core_init(void)
146{
Kay Sievers4a858cf2011-12-21 16:01:38 -0800147 return subsys_system_register(&s3c2416_subsys, NULL);
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900148}
149
150core_initcall(s3c2416_core_init);