LXR linux/arch/arm/mach-s3c24xx/s3c2443.c

   1// SPDX-License-Identifier: GPL-2.0
   2//
   3// Copyright (c) 2007 Simtec Electronics
   4//   Ben Dooks <ben@simtec.co.uk>
   5//
   6// Samsung S3C2443 Mobile CPU support
   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/platform_device.h>
  16#include <linux/serial_core.h>
  17#include <linux/device.h>
  18#include <linux/clk.h>
  19#include <linux/io.h>
  20#include <linux/reboot.h>
  21
  22#include <asm/mach/arch.h>
  23#include <asm/mach/map.h>
  24#include <asm/mach/irq.h>
  25
  26#include <mach/hardware.h>
  27#include <mach/gpio-samsung.h>
  28#include <asm/irq.h>
  29#include <asm/system_misc.h>
  30
  31#include <mach/regs-s3c2443-clock.h>
  32#include <mach/rtc-core.h>
  33
  34#include <plat/gpio-core.h>
  35#include <plat/gpio-cfg.h>
  36#include <plat/gpio-cfg-helpers.h>
  37#include <plat/devs.h>
  38#include <plat/cpu.h>
  39#include <plat/adc-core.h>
  40
  41#include "fb-core.h"
  42#include "nand-core.h"
  43#include "spi-core.h"
  44
  45static struct map_desc s3c2443_iodesc[] __initdata = {
  46        IODESC_ENT(WATCHDOG),
  47        IODESC_ENT(CLKPWR),
  48        IODESC_ENT(TIMER),
  49};
  50
  51struct bus_type s3c2443_subsys = {
  52        .name = "s3c2443-core",
  53        .dev_name = "s3c2443-core",
  54};
  55
  56static struct device s3c2443_dev = {
  57        .bus            = &s3c2443_subsys,
  58};
  59
  60int __init s3c2443_init(void)
  61{
  62        printk("S3C2443: Initialising architecture\n");
  63
  64        s3c_nand_setname("s3c2412-nand");
  65        s3c_fb_setname("s3c2443-fb");
  66
  67        s3c_adc_setname("s3c2443-adc");
  68        s3c_rtc_setname("s3c2443-rtc");
  69
  70        /* change WDT IRQ number */
  71        s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
  72        s3c_device_wdt.resource[1].end   = IRQ_S3C2443_WDT;
  73
  74        return device_register(&s3c2443_dev);
  75}
  76
  77void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no)
  78{
  79        s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
  80}
  81
  82/* s3c2443_map_io
  83 *
  84 * register the standard cpu IO areas, and any passed in from the
  85 * machine specific initialisation.
  86 */
  87
  88void __init s3c2443_map_io(void)
  89{
  90        s3c24xx_gpiocfg_default.set_pull = s3c2443_gpio_setpull;
  91        s3c24xx_gpiocfg_default.get_pull = s3c2443_gpio_getpull;
  92
  93        /* initialize device information early */
  94        s3c64xx_spi_setname("s3c2443-spi");
  95
  96        iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc));
  97}
  98
  99/* need to register the subsystem before we actually register the device, and
 100 * we also need to ensure that it has been initialised before any of the
 101 * drivers even try to use it (even if not on an s3c2443 based system)
 102 * as a driver which may support both 2443 and 2440 may try and use it.
 103*/
 104
 105static int __init s3c2443_core_init(void)
 106{
 107        return subsys_system_register(&s3c2443_subsys, NULL);
 108}
 109
 110core_initcall(s3c2443_core_init);
 111