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
  46 static struct map_desc s3c6410_iodesc[] __initdata = {
  47 };
  48
  49 /* s3c6410_map_io
  50  *
  51  * register the standard cpu IO areas
  52 */
  53
  54 void __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         s3c6410_default_sdhci2();
  62
  63         /* the i2c devices are directly compatible with s3c2440 */
  64         s3c_i2c0_setname("s3c2440-i2c");
  65         s3c_i2c1_setname("s3c2440-i2c");
  66
  67         s3c_device_nand.name = "s3c6400-nand";
  68 }
  69
  70 void __init s3c6410_init_clocks(int xtal)
  71 {
  72         printk(KERN_DEBUG "%s: initialising clocks\n", __func__);
  73         s3c24xx_register_baseclocks(xtal);
  74         s3c64xx_register_clocks();
  75         s3c6400_register_clocks(S3C6410_CLKDIV0_ARM_MASK);
  76         s3c6400_setup_clocks();
  77 }
  78
  79 void __init s3c6410_init_irq(void)
  80 {
  81         /* VIC0 is missing IRQ7, VIC1 is fully populated. */
  82         s3c64xx_init_irq(~0 & ~(1 << 7), ~0);
  83 }
  84
  85 struct sysdev_class s3c6410_sysclass = {
  86         .name   = "s3c6410-core",
  87 };
  88
  89 static struct sys_device s3c6410_sysdev = {
  90         .cls    = &s3c6410_sysclass,
  91 };
  92
  93 static int __init s3c6410_core_init(void)
  94 {
  95         return sysdev_class_register(&s3c6410_sysclass);
  96 }
  97
  98 core_initcall(s3c6410_core_init);
  99
 100 int __init s3c6410_init(void)
 101 {
 102         printk("S3C6410: Initialising architecture\n");
 103
 104         return sysdev_register(&s3c6410_sysdev);
 105 }