arch/arm/mach-s3c2443/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/platform_device.h>
  20 #include <linux/serial_core.h>
  21 #include <linux/sysdev.h>
  22 #include <linux/clk.h>
  23
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/map.h>
  26 #include <asm/mach/irq.h>
  27
  28 #include <asm/hardware.h>
  29 #include <asm/io.h>
  30 #include <asm/irq.h>
  31
  32 #include <asm/arch/regs-serial.h>
  33
  34 #include <asm/plat-s3c24xx/s3c2443.h>
  35 #include <asm/plat-s3c24xx/devs.h>
  36 #include <asm/plat-s3c24xx/cpu.h>
  37
  38 static struct map_desc s3c2443_iodesc[] __initdata = {
  39         IODESC_ENT(WATCHDOG),
  40         IODESC_ENT(CLKPWR),
  41         IODESC_ENT(TIMER),
  42 };
  43
  44 struct sysdev_class s3c2443_sysclass = {
  45         set_kset_name("s3c2443-core"),
  46 };
  47
  48 static struct sys_device s3c2443_sysdev = {
  49         .cls            = &s3c2443_sysclass,
  50 };
  51
  52 int __init s3c2443_init(void)
  53 {
  54         printk("S3C2443: Initialising architecture\n");
  55
  56         return sysdev_register(&s3c2443_sysdev);
  57 }
  58
  59 void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no)
  60 {
  61         s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
  62 }
  63
  64 /* s3c2443_map_io
  65  *
  66  * register the standard cpu IO areas, and any passed in from the
  67  * machine specific initialisation.
  68  */
  69
  70 void __init s3c2443_map_io(struct map_desc *mach_desc, int mach_size)
  71 {
  72         iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc));
  73         iotable_init(mach_desc, mach_size);
  74 }
  75
  76 /* need to register class before we actually register the device, and
  77  * we also need to ensure that it has been initialised before any of the
  78  * drivers even try to use it (even if not on an s3c2443 based system)
  79  * as a driver which may support both 2443 and 2440 may try and use it.
  80 */
  81
  82 static int __init s3c2443_core_init(void)
  83 {
  84         return sysdev_class_register(&s3c2443_sysclass);
  85 }
  86
  87 core_initcall(s3c2443_core_init);