LXR linux/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#include <plat/regs-clock.h>
  35
  36#include <plat/cpu.h>
  37#include <plat/devs.h>
  38#include <plat/clock.h>
  39#include <plat/sdhci.h>
  40#include <plat/iic-core.h>
  41#include <plat/s3c6400.h>
  42#include <plat/s3c6410.h>
  43
  44/* Initial IO mappings */
  45
  46static struct map_desc s3c6410_iodesc[] __initdata = {
  47};
  48
  49/* s3c6410_map_io
  50 *
  51 * register the standard cpu IO areas
  52*/
  53
  54void __init s3c6410_map_io(void)
  55{
  56        iotable_init(s3c6410_iodesc, ARRAY_SIZE(s3c6410_iodesc));
  57
  58        /* initialise device information early */
  59        s3c6410_default_sdhci0();
  60        s3c6410_default_sdhci1();
  61
  62        /* the i2c devices are directly compatible with s3c2440 */
  63        s3c_i2c0_setname("s3c2440-i2c");
  64        s3c_i2c1_setname("s3c2440-i2c");
  65
  66        s3c_device_nand.name = "s3c6400-nand";
  67}
  68
  69void __init s3c6410_init_clocks(int xtal)
  70{
  71        printk(KERN_DEBUG "%s: initialising clocks\n", __func__);
  72        s3c24xx_register_baseclocks(xtal);
  73        s3c64xx_register_clocks();
  74        s3c6400_register_clocks(S3C6410_CLKDIV0_ARM_MASK);
  75        s3c6400_setup_clocks();
  76}
  77
  78void __init s3c6410_init_irq(void)
  79{
  80        /* VIC0 is missing IRQ7, VIC1 is fully populated. */
  81        s3c64xx_init_irq(~0 & ~(1 << 7), ~0);
  82}
  83
  84struct sysdev_class s3c6410_sysclass = {
  85        .name   = "s3c6410-core",
  86};
  87
  88static struct sys_device s3c6410_sysdev = {
  89        .cls    = &s3c6410_sysclass,
  90};
  91
  92static int __init s3c6410_core_init(void)
  93{
  94        return sysdev_class_register(&s3c6410_sysclass);
  95}
  96
  97core_initcall(s3c6410_core_init);
  98
  99int __init s3c6410_init(void)
 100{
 101        printk("S3C6410: Initialising architecture\n");
 102
 103        return sysdev_register(&s3c6410_sysdev);
 104}
 105