LXR linux/arch/arm/mach-s3c/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 "map.h"
  27#include "gpio-samsung.h"
  28#include <mach/irqs.h>
  29#include <asm/irq.h>
  30#include <asm/system_misc.h>
  31
  32#include "regs-s3c2443-clock.h"
  33#include "rtc-core-s3c24xx.h"
  34
  35#include "gpio-core.h"
  36#include "gpio-cfg.h"
  37#include "gpio-cfg-helpers.h"
  38#include "devs.h"
  39#include "cpu.h"
  40#include "adc-core.h"
  41
  42#include "s3c24xx.h"
  43#include "fb-core-s3c24xx.h"
  44#include "nand-core-s3c24xx.h"
  45#include "spi-core-s3c24xx.h"
  46
  47static struct map_desc s3c2443_iodesc[] __initdata __maybe_unused = {
  48        IODESC_ENT(WATCHDOG),
  49        IODESC_ENT(CLKPWR),
  50        IODESC_ENT(TIMER),
  51};
  52
  53struct bus_type s3c2443_subsys = {
  54        .name = "s3c2443-core",
  55        .dev_name = "s3c2443-core",
  56};
  57
  58static struct device s3c2443_dev = {
  59        .bus            = &s3c2443_subsys,
  60};
  61
  62int __init s3c2443_init(void)
  63{
  64        printk("S3C2443: Initialising architecture\n");
  65
  66        s3c_nand_setname("s3c2412-nand");
  67        s3c_fb_setname("s3c2443-fb");
  68
  69        s3c_adc_setname("s3c2443-adc");
  70        s3c_rtc_setname("s3c2443-rtc");
  71
  72        /* change WDT IRQ number */
  73        s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
  74        s3c_device_wdt.resource[1].end   = IRQ_S3C2443_WDT;
  75
  76        return device_register(&s3c2443_dev);
  77}
  78
  79void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no)
  80{
  81        s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
  82}
  83
  84/* s3c2443_map_io
  85 *
  86 * register the standard cpu IO areas, and any passed in from the
  87 * machine specific initialisation.
  88 */
  89
  90void __init s3c2443_map_io(void)
  91{
  92        s3c24xx_gpiocfg_default.set_pull = s3c2443_gpio_setpull;
  93        s3c24xx_gpiocfg_default.get_pull = s3c2443_gpio_getpull;
  94
  95        /* initialize device information early */
  96        s3c24xx_spi_setname("s3c2443-spi");
  97
  98        iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc));
  99}
 100
 101/* need to register the subsystem before we actually register the device, and
 102 * we also need to ensure that it has been initialised before any of the
 103 * drivers even try to use it (even if not on an s3c2443 based system)
 104 * as a driver which may support both 2443 and 2440 may try and use it.
 105*/
 106
 107static int __init s3c2443_core_init(void)
 108{
 109        return subsys_system_register(&s3c2443_subsys, NULL);
 110}
 111
 112core_initcall(s3c2443_core_init);
 113