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Linux/arch/arm/mach-s3c24xx/s3c2416.c

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  1 /* 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>
 31 #include <linux/gpio.h>
 32 #include <linux/platform_device.h>
 33 #include <linux/serial_core.h>
 34 #include <linux/device.h>
 35 #include <linux/syscore_ops.h>
 36 #include <linux/clk.h>
 37 #include <linux/io.h>
 38 #include <linux/reboot.h>
 39 
 40 #include <asm/mach/arch.h>
 41 #include <asm/mach/map.h>
 42 #include <asm/mach/irq.h>
 43 
 44 #include <mach/hardware.h>
 45 #include <mach/gpio-samsung.h>
 46 #include <asm/proc-fns.h>
 47 #include <asm/irq.h>
 48 #include <asm/system_misc.h>
 49 
 50 #include <mach/regs-s3c2443-clock.h>
 51 #include <mach/rtc-core.h>
 52 
 53 #include <plat/gpio-core.h>
 54 #include <plat/gpio-cfg.h>
 55 #include <plat/gpio-cfg-helpers.h>
 56 #include <plat/devs.h>
 57 #include <plat/cpu.h>
 58 #include <plat/sdhci.h>
 59 #include <plat/pm.h>
 60 
 61 #include <plat/iic-core.h>
 62 #include <plat/adc-core.h>
 63 
 64 #include "common.h"
 65 #include "fb-core.h"
 66 #include "nand-core.h"
 67 #include "spi-core.h"
 68 
 69 static struct map_desc s3c2416_iodesc[] __initdata = {
 70         IODESC_ENT(WATCHDOG),
 71         IODESC_ENT(CLKPWR),
 72         IODESC_ENT(TIMER),
 73 };
 74 
 75 struct bus_type s3c2416_subsys = {
 76         .name = "s3c2416-core",
 77         .dev_name = "s3c2416-core",
 78 };
 79 
 80 static struct device s3c2416_dev = {
 81         .bus            = &s3c2416_subsys,
 82 };
 83 
 84 int __init s3c2416_init(void)
 85 {
 86         printk(KERN_INFO "S3C2416: Initializing architecture\n");
 87 
 88         /* change WDT IRQ number */
 89         s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
 90         s3c_device_wdt.resource[1].end   = IRQ_S3C2443_WDT;
 91 
 92         /* the i2c devices are directly compatible with s3c2440 */
 93         s3c_i2c0_setname("s3c2440-i2c");
 94         s3c_i2c1_setname("s3c2440-i2c");
 95 
 96         s3c_fb_setname("s3c2443-fb");
 97 
 98         s3c_adc_setname("s3c2416-adc");
 99         s3c_rtc_setname("s3c2416-rtc");
100 
101 #ifdef CONFIG_PM_SLEEP
102         register_syscore_ops(&s3c2416_pm_syscore_ops);
103         register_syscore_ops(&s3c24xx_irq_syscore_ops);
104         register_syscore_ops(&s3c2416_irq_syscore_ops);
105 #endif
106 
107         return device_register(&s3c2416_dev);
108 }
109 
110 void __init s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no)
111 {
112         s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
113 
114         s3c_nand_setname("s3c2412-nand");
115 }
116 
117 /* s3c2416_map_io
118  *
119  * register the standard cpu IO areas, and any passed in from the
120  * machine specific initialisation.
121  */
122 
123 void __init s3c2416_map_io(void)
124 {
125         s3c24xx_gpiocfg_default.set_pull = samsung_gpio_setpull_updown;
126         s3c24xx_gpiocfg_default.get_pull = samsung_gpio_getpull_updown;
127 
128         /* initialize device information early */
129         s3c2416_default_sdhci0();
130         s3c2416_default_sdhci1();
131         s3c64xx_spi_setname("s3c2443-spi");
132 
133         iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc));
134 }
135 
136 /* need to register the subsystem before we actually register the device, and
137  * we also need to ensure that it has been initialised before any of the
138  * drivers even try to use it (even if not on an s3c2416 based system)
139  * as a driver which may support both 2443 and 2440 may try and use it.
140 */
141 
142 static int __init s3c2416_core_init(void)
143 {
144         return subsys_system_register(&s3c2416_subsys, NULL);
145 }
146 
147 core_initcall(s3c2416_core_init);
148 

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