LXR linux/arch/arm/mach-s3c24xx/s3c2443.c

   1/* linux/arch/arm/mach-s3c2443/s3c2443.c
   2 *
   3 * Copyright (c) 2007 Simtec Electronics
   4 *   Ben Dooks <ben@simtec.co.uk>
   5 *
   6 * Samsung S3C2443 Mobile CPU support
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License version 2 as
  10 * published by the Free Software Foundation.
  11*/
  12
  13#include <linux/kernel.h>
  14#include <linux/types.h>
  15#include <linux/interrupt.h>
  16#include <linux/list.h>
  17#include <linux/timer.h>
  18#include <linux/init.h>
  19#include <linux/gpio.h>
  20#include <linux/platform_device.h>
  21#include <linux/serial_core.h>
  22#include <linux/device.h>
  23#include <linux/clk.h>
  24#include <linux/io.h>
  25#include <linux/reboot.h>
  26
  27#include <asm/mach/arch.h>
  28#include <asm/mach/map.h>
  29#include <asm/mach/irq.h>
  30
  31#include <mach/hardware.h>
  32#include <mach/gpio-samsung.h>
  33#include <asm/irq.h>
  34#include <asm/system_misc.h>
  35
  36#include <mach/regs-s3c2443-clock.h>
  37#include <mach/rtc-core.h>
  38
  39#include <plat/gpio-core.h>
  40#include <plat/gpio-cfg.h>
  41#include <plat/gpio-cfg-helpers.h>
  42#include <plat/devs.h>
  43#include <plat/cpu.h>
  44#include <plat/adc-core.h>
  45
  46#include "fb-core.h"
  47#include "nand-core.h"
  48#include "spi-core.h"
  49
  50static struct map_desc s3c2443_iodesc[] __initdata = {
  51        IODESC_ENT(WATCHDOG),
  52        IODESC_ENT(CLKPWR),
  53        IODESC_ENT(TIMER),
  54};
  55
  56struct bus_type s3c2443_subsys = {
  57        .name = "s3c2443-core",
  58        .dev_name = "s3c2443-core",
  59};
  60
  61static struct device s3c2443_dev = {
  62        .bus            = &s3c2443_subsys,
  63};
  64
  65int __init s3c2443_init(void)
  66{
  67        printk("S3C2443: Initialising architecture\n");
  68
  69        s3c_nand_setname("s3c2412-nand");
  70        s3c_fb_setname("s3c2443-fb");
  71
  72        s3c_adc_setname("s3c2443-adc");
  73        s3c_rtc_setname("s3c2443-rtc");
  74
  75        /* change WDT IRQ number */
  76        s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
  77        s3c_device_wdt.resource[1].end   = IRQ_S3C2443_WDT;
  78
  79        return device_register(&s3c2443_dev);
  80}
  81
  82void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no)
  83{
  84        s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
  85}
  86
  87/* s3c2443_map_io
  88 *
  89 * register the standard cpu IO areas, and any passed in from the
  90 * machine specific initialisation.
  91 */
  92
  93void __init s3c2443_map_io(void)
  94{
  95        s3c24xx_gpiocfg_default.set_pull = s3c2443_gpio_setpull;
  96        s3c24xx_gpiocfg_default.get_pull = s3c2443_gpio_getpull;
  97
  98        /* initialize device information early */
  99        s3c64xx_spi_setname("s3c2443-spi");
 100
 101        iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc));
 102}
 103
 104/* need to register the subsystem before we actually register the device, and
 105 * we also need to ensure that it has been initialised before any of the
 106 * drivers even try to use it (even if not on an s3c2443 based system)
 107 * as a driver which may support both 2443 and 2440 may try and use it.
 108*/
 109
 110static int __init s3c2443_core_init(void)
 111{
 112        return subsys_system_register(&s3c2443_subsys, NULL);
 113}
 114
 115core_initcall(s3c2443_core_init);
 116