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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 
 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>
 46 #include <asm/system_misc.h>
 47 
 48 #include <mach/regs-s3c2443-clock.h>
 49 
 50 #include <plat/gpio-core.h>
 51 #include <plat/gpio-cfg.h>
 52 #include <plat/gpio-cfg-helpers.h>
 53 #include <plat/s3c2416.h>
 54 #include <plat/devs.h>
 55 #include <plat/cpu.h>
 56 #include <plat/sdhci.h>
 57 #include <plat/pm.h>
 58 
 59 #include <plat/iic-core.h>
 60 #include <plat/fb-core.h>
 61 #include <plat/nand-core.h>
 62 #include <plat/adc-core.h>
 63 #include <plat/rtc-core.h>
 64 #include <plat/spi-core.h>
 65 
 66 static struct map_desc s3c2416_iodesc[] __initdata = {
 67         IODESC_ENT(WATCHDOG),
 68         IODESC_ENT(CLKPWR),
 69         IODESC_ENT(TIMER),
 70 };
 71 
 72 struct bus_type s3c2416_subsys = {
 73         .name = "s3c2416-core",
 74         .dev_name = "s3c2416-core",
 75 };
 76 
 77 static struct device s3c2416_dev = {
 78         .bus            = &s3c2416_subsys,
 79 };
 80 
 81 void s3c2416_restart(char mode, const char *cmd)
 82 {
 83         if (mode == 's')
 84                 soft_restart(0);
 85 
 86         __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST);
 87 }
 88 
 89 int __init s3c2416_init(void)
 90 {
 91         printk(KERN_INFO "S3C2416: Initializing architecture\n");
 92 
 93         /* change WDT IRQ number */
 94         s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
 95         s3c_device_wdt.resource[1].end   = IRQ_S3C2443_WDT;
 96 
 97         /* the i2c devices are directly compatible with s3c2440 */
 98         s3c_i2c0_setname("s3c2440-i2c");
 99         s3c_i2c1_setname("s3c2440-i2c");
100 
101         s3c_fb_setname("s3c2443-fb");
102 
103         s3c_adc_setname("s3c2416-adc");
104         s3c_rtc_setname("s3c2416-rtc");
105 
106 #ifdef CONFIG_PM
107         register_syscore_ops(&s3c2416_pm_syscore_ops);
108 #endif
109         register_syscore_ops(&s3c24xx_irq_syscore_ops);
110         register_syscore_ops(&s3c2416_irq_syscore_ops);
111 
112         return device_register(&s3c2416_dev);
113 }
114 
115 void __init s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no)
116 {
117         s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
118 
119         s3c_nand_setname("s3c2412-nand");
120 }
121 
122 /* s3c2416_map_io
123  *
124  * register the standard cpu IO areas, and any passed in from the
125  * machine specific initialisation.
126  */
127 
128 void __init s3c2416_map_io(void)
129 {
130         s3c24xx_gpiocfg_default.set_pull = samsung_gpio_setpull_updown;
131         s3c24xx_gpiocfg_default.get_pull = samsung_gpio_getpull_updown;
132 
133         /* initialize device information early */
134         s3c2416_default_sdhci0();
135         s3c2416_default_sdhci1();
136         s3c64xx_spi_setname("s3c2443-spi");
137 
138         iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc));
139 }
140 
141 /* need to register the subsystem before we actually register the device, and
142  * we also need to ensure that it has been initialised before any of the
143  * drivers even try to use it (even if not on an s3c2416 based system)
144  * as a driver which may support both 2443 and 2440 may try and use it.
145 */
146 
147 static int __init s3c2416_core_init(void)
148 {
149         return subsys_system_register(&s3c2416_subsys, NULL);
150 }
151 
152 core_initcall(s3c2416_core_init);
153 

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