arch/arm/mach-s3c6410/cpu.c

   1 /* linux/arch/arm/mach-s3c6410/cpu.c
   2  *
   3  * Copyright 2008 Simtec Electronics
   4  * Copyright 2008 Simtec Electronics
   5  *      Ben Dooks <ben@simtec.co.uk>
   6  *      http://armlinux.simtec.co.uk/
   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/clk.h>
  20 #include <linux/io.h>
  21 #include <linux/sysdev.h>
  22 #include <linux/serial_core.h>
  23 #include <linux/platform_device.h>
  24
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/map.h>
  27 #include <asm/mach/irq.h>
  28
  29 #include <mach/hardware.h>
  30 #include <asm/irq.h>
  31
  32 #include <plat/cpu-freq.h>
  33 #include <plat/regs-serial.h>
  34
  35 #include <plat/cpu.h>
  36 #include <plat/devs.h>
  37 #include <plat/clock.h>
  38 #include <plat/s3c6400.h>
  39 #include <plat/s3c6410.h>
  40
  41 /* Initial IO mappings */
  42
  43 static struct map_desc s3c6410_iodesc[] __initdata = {
  44 };
  45
  46 /* s3c6410_map_io
  47  *
  48  * register the standard cpu IO areas
  49 */
  50
  51 void __init s3c6410_map_io(void)
  52 {
  53         iotable_init(s3c6410_iodesc, ARRAY_SIZE(s3c6410_iodesc));
  54 }
  55
  56 void __init s3c6410_init_clocks(int xtal)
  57 {
  58         printk(KERN_DEBUG "%s: initialising clocks\n", __func__);
  59         s3c24xx_register_baseclocks(xtal);
  60         s3c64xx_register_clocks();
  61         s3c6400_register_clocks();
  62         s3c6400_setup_clocks();
  63 }
  64
  65 void __init s3c6410_init_irq(void)
  66 {
  67         /* VIC0 is missing IRQ7, VIC1 is fully populated. */
  68         s3c64xx_init_irq(~0 & ~(1 << 7), ~0);
  69 }
  70
  71 struct sysdev_class s3c6410_sysclass = {
  72         .name   = "s3c6410-core",
  73 };
  74
  75 static struct sys_device s3c6410_sysdev = {
  76         .cls    = &s3c6410_sysclass,
  77 };
  78
  79 static int __init s3c6410_core_init(void)
  80 {
  81         return sysdev_class_register(&s3c6410_sysclass);
  82 }
  83
  84 core_initcall(s3c6410_core_init);
  85
  86 int __init s3c6410_init(void)
  87 {
  88         printk("S3C6410: Initialising architecture\n");
  89
  90         return sysdev_register(&s3c6410_sysdev);
  91 }