arch/arm/mach-s3c64xx/s3c6400.c

   1 /* linux/arch/arm/mach-s3c64xx/cpu.c
   2  *
   3  * Copyright 2009 Simtec Electronics
   4  *      Ben Dooks <ben@simtec.co.uk>
   5  *      http://armlinux.simtec.co.uk/
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10 */
  11
  12 /*
  13  * NOTE: Code in this file is not used when booting with Device Tree support.
  14  */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/types.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/list.h>
  20 #include <linux/timer.h>
  21 #include <linux/init.h>
  22 #include <linux/clk.h>
  23 #include <linux/io.h>
  24 #include <linux/device.h>
  25 #include <linux/serial_core.h>
  26 #include <linux/serial_s3c.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/of.h>
  29
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32 #include <asm/mach/irq.h>
  33
  34 #include <mach/hardware.h>
  35 #include <asm/irq.h>
  36
  37 #include <plat/cpu-freq.h>
  38 #include <mach/regs-clock.h>
  39
  40 #include <plat/cpu.h>
  41 #include <plat/devs.h>
  42 #include <plat/clock.h>
  43 #include <plat/sdhci.h>
  44 #include <plat/iic-core.h>
  45 #include <plat/onenand-core.h>
  46
  47 #include "common.h"
  48
  49 void __init s3c6400_map_io(void)
  50 {
  51         /* setup SDHCI */
  52
  53         s3c6400_default_sdhci0();
  54         s3c6400_default_sdhci1();
  55         s3c6400_default_sdhci2();
  56
  57         /* the i2c devices are directly compatible with s3c2440 */
  58         s3c_i2c0_setname("s3c2440-i2c");
  59
  60         s3c_device_nand.name = "s3c6400-nand";
  61
  62         s3c_onenand_setname("s3c6400-onenand");
  63         s3c64xx_onenand1_setname("s3c6400-onenand");
  64 }
  65
  66 void __init s3c6400_init_irq(void)
  67 {
  68         /* VIC0 does not have IRQS 5..7,
  69          * VIC1 is fully populated. */
  70         s3c64xx_init_irq(~0 & ~(0xf << 5), ~0);
  71 }
  72
  73 static struct bus_type s3c6400_subsys = {
  74         .name           = "s3c6400-core",
  75         .dev_name       = "s3c6400-core",
  76 };
  77
  78 static struct device s3c6400_dev = {
  79         .bus    = &s3c6400_subsys,
  80 };
  81
  82 static int __init s3c6400_core_init(void)
  83 {
  84         /* Not applicable when using DT. */
  85         if (of_have_populated_dt())
  86                 return 0;
  87
  88         return subsys_system_register(&s3c6400_subsys, NULL);
  89 }
  90
  91 core_initcall(s3c6400_core_init);
  92
  93 int __init s3c6400_init(void)
  94 {
  95         printk("S3C6400: Initialising architecture\n");
  96
  97         return device_register(&s3c6400_dev);
  98 }