arch/arm/mach-s3c24xx/s3c2416.c

   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
  52 #include <plat/gpio-core.h>
  53 #include <plat/gpio-cfg.h>
  54 #include <plat/gpio-cfg-helpers.h>
  55 #include <plat/devs.h>
  56 #include <plat/cpu.h>
  57 #include <plat/sdhci.h>
  58 #include <plat/pm.h>
  59
  60 #include <plat/iic-core.h>
  61 #include <plat/fb-core.h>
  62 #include <plat/nand-core.h>
  63 #include <plat/adc-core.h>
  64 #include <plat/rtc-core.h>
  65 #include <plat/spi-core.h>
  66
  67 #include "common.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 void s3c2416_restart(enum reboot_mode mode, const char *cmd)
  85 {
  86         if (mode == REBOOT_SOFT)
  87                 soft_restart(0);
  88
  89         __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST);
  90 }
  91
  92 int __init s3c2416_init(void)
  93 {
  94         printk(KERN_INFO "S3C2416: Initializing architecture\n");
  95
  96         /* change WDT IRQ number */
  97         s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
  98         s3c_device_wdt.resource[1].end   = IRQ_S3C2443_WDT;
  99
 100         /* the i2c devices are directly compatible with s3c2440 */
 101         s3c_i2c0_setname("s3c2440-i2c");
 102         s3c_i2c1_setname("s3c2440-i2c");
 103
 104         s3c_fb_setname("s3c2443-fb");
 105
 106         s3c_adc_setname("s3c2416-adc");
 107         s3c_rtc_setname("s3c2416-rtc");
 108
 109 #ifdef CONFIG_PM
 110         register_syscore_ops(&s3c2416_pm_syscore_ops);
 111         register_syscore_ops(&s3c24xx_irq_syscore_ops);
 112         register_syscore_ops(&s3c2416_irq_syscore_ops);
 113 #endif
 114
 115         return device_register(&s3c2416_dev);
 116 }
 117
 118 void __init s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 119 {
 120         s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
 121
 122         s3c_nand_setname("s3c2412-nand");
 123 }
 124
 125 /* s3c2416_map_io
 126  *
 127  * register the standard cpu IO areas, and any passed in from the
 128  * machine specific initialisation.
 129  */
 130
 131 void __init s3c2416_map_io(void)
 132 {
 133         s3c24xx_gpiocfg_default.set_pull = samsung_gpio_setpull_updown;
 134         s3c24xx_gpiocfg_default.get_pull = samsung_gpio_getpull_updown;
 135
 136         /* initialize device information early */
 137         s3c2416_default_sdhci0();
 138         s3c2416_default_sdhci1();
 139         s3c64xx_spi_setname("s3c2443-spi");
 140
 141         iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc));
 142 }
 143
 144 /* need to register the subsystem before we actually register the device, and
 145  * we also need to ensure that it has been initialised before any of the
 146  * drivers even try to use it (even if not on an s3c2416 based system)
 147  * as a driver which may support both 2443 and 2440 may try and use it.
 148 */
 149
 150 static int __init s3c2416_core_init(void)
 151 {
 152         return subsys_system_register(&s3c2416_subsys, NULL);
 153 }
 154
 155 core_initcall(s3c2416_core_init);