LXR linux/arch/arm/mach-s3c2416/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
  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
  47#include <mach/idle.h>
  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
  64static struct map_desc s3c2416_iodesc[] __initdata = {
  65        IODESC_ENT(WATCHDOG),
  66        IODESC_ENT(CLKPWR),
  67        IODESC_ENT(TIMER),
  68};
  69
  70struct bus_type s3c2416_subsys = {
  71        .name = "s3c2416-core",
  72        .dev_name = "s3c2416-core",
  73};
  74
  75static struct device s3c2416_dev = {
  76        .bus            = &s3c2416_subsys,
  77};
  78
  79void s3c2416_restart(char mode, const char *cmd)
  80{
  81        if (mode == 's')
  82                soft_restart(0);
  83
  84        __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST);
  85}
  86
  87int __init s3c2416_init(void)
  88{
  89        printk(KERN_INFO "S3C2416: Initializing architecture\n");
  90
  91        /* s3c24xx_idle = s3c2416_idle; */
  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
 105#ifdef CONFIG_PM
 106        register_syscore_ops(&s3c2416_pm_syscore_ops);
 107#endif
 108        register_syscore_ops(&s3c24xx_irq_syscore_ops);
 109
 110        return device_register(&s3c2416_dev);
 111}
 112
 113void __init s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 114{
 115        s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
 116
 117        s3c_nand_setname("s3c2412-nand");
 118}
 119
 120/* s3c2416_map_io
 121 *
 122 * register the standard cpu IO areas, and any passed in from the
 123 * machine specific initialisation.
 124 */
 125
 126void __init s3c2416_map_io(void)
 127{
 128        s3c24xx_gpiocfg_default.set_pull = samsung_gpio_setpull_updown;
 129        s3c24xx_gpiocfg_default.get_pull = samsung_gpio_getpull_updown;
 130
 131        /* initialize device information early */
 132        s3c2416_default_sdhci0();
 133        s3c2416_default_sdhci1();
 134
 135        iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc));
 136}
 137
 138/* need to register the subsystem before we actually register the device, and
 139 * we also need to ensure that it has been initialised before any of the
 140 * drivers even try to use it (even if not on an s3c2416 based system)
 141 * as a driver which may support both 2443 and 2440 may try and use it.
 142*/
 143
 144static int __init s3c2416_core_init(void)
 145{
 146        return subsys_system_register(&s3c2416_subsys, NULL);
 147}
 148
 149core_initcall(s3c2416_core_init);
 150