LXR linux/arch/arm/mach-s3c24xx/s3c2410.c

   1// SPDX-License-Identifier: GPL-2.0
   2//
   3// Copyright (c) 2003-2005 Simtec Electronics
   4//      Ben Dooks <ben@simtec.co.uk>
   5//
   6// http://www.simtec.co.uk/products/EB2410ITX/
   7
   8#include <linux/kernel.h>
   9#include <linux/types.h>
  10#include <linux/interrupt.h>
  11#include <linux/list.h>
  12#include <linux/timer.h>
  13#include <linux/init.h>
  14#include <linux/gpio.h>
  15#include <linux/clk.h>
  16#include <linux/device.h>
  17#include <linux/syscore_ops.h>
  18#include <linux/serial_core.h>
  19#include <linux/serial_s3c.h>
  20#include <linux/platform_device.h>
  21#include <linux/reboot.h>
  22#include <linux/io.h>
  23
  24#include <asm/mach/arch.h>
  25#include <asm/mach/map.h>
  26#include <asm/mach/irq.h>
  27
  28#include <mach/hardware.h>
  29#include <mach/gpio-samsung.h>
  30#include <asm/irq.h>
  31#include <asm/system_misc.h>
  32
  33#include <plat/cpu-freq.h>
  34
  35#include <mach/regs-clock.h>
  36
  37#include <plat/cpu.h>
  38#include <plat/devs.h>
  39#include <plat/pm.h>
  40
  41#include <plat/gpio-core.h>
  42#include <plat/gpio-cfg.h>
  43#include <plat/gpio-cfg-helpers.h>
  44
  45#include "common.h"
  46
  47/* Initial IO mappings */
  48
  49static struct map_desc s3c2410_iodesc[] __initdata = {
  50        IODESC_ENT(CLKPWR),
  51        IODESC_ENT(TIMER),
  52        IODESC_ENT(WATCHDOG),
  53};
  54
  55/* our uart devices */
  56
  57/* uart registration process */
  58
  59void __init s3c2410_init_uarts(struct s3c2410_uartcfg *cfg, int no)
  60{
  61        s3c24xx_init_uartdevs("s3c2410-uart", s3c2410_uart_resources, cfg, no);
  62}
  63
  64/* s3c2410_map_io
  65 *
  66 * register the standard cpu IO areas, and any passed in from the
  67 * machine specific initialisation.
  68*/
  69
  70void __init s3c2410_map_io(void)
  71{
  72        s3c24xx_gpiocfg_default.set_pull = s3c24xx_gpio_setpull_1up;
  73        s3c24xx_gpiocfg_default.get_pull = s3c24xx_gpio_getpull_1up;
  74
  75        iotable_init(s3c2410_iodesc, ARRAY_SIZE(s3c2410_iodesc));
  76}
  77
  78struct bus_type s3c2410_subsys = {
  79        .name = "s3c2410-core",
  80        .dev_name = "s3c2410-core",
  81};
  82
  83/* Note, we would have liked to name this s3c2410-core, but we cannot
  84 * register two subsystems with the same name.
  85 */
  86struct bus_type s3c2410a_subsys = {
  87        .name = "s3c2410a-core",
  88        .dev_name = "s3c2410a-core",
  89};
  90
  91static struct device s3c2410_dev = {
  92        .bus            = &s3c2410_subsys,
  93};
  94
  95/* need to register the subsystem before we actually register the device, and
  96 * we also need to ensure that it has been initialised before any of the
  97 * drivers even try to use it (even if not on an s3c2410 based system)
  98 * as a driver which may support both 2410 and 2440 may try and use it.
  99*/
 100
 101static int __init s3c2410_core_init(void)
 102{
 103        return subsys_system_register(&s3c2410_subsys, NULL);
 104}
 105
 106core_initcall(s3c2410_core_init);
 107
 108static int __init s3c2410a_core_init(void)
 109{
 110        return subsys_system_register(&s3c2410a_subsys, NULL);
 111}
 112
 113core_initcall(s3c2410a_core_init);
 114
 115int __init s3c2410_init(void)
 116{
 117        printk("S3C2410: Initialising architecture\n");
 118
 119#ifdef CONFIG_PM_SLEEP
 120        register_syscore_ops(&s3c2410_pm_syscore_ops);
 121        register_syscore_ops(&s3c24xx_irq_syscore_ops);
 122#endif
 123
 124        return device_register(&s3c2410_dev);
 125}
 126
 127int __init s3c2410a_init(void)
 128{
 129        s3c2410_dev.bus = &s3c2410a_subsys;
 130        return s3c2410_init();
 131}
 132