linux/arch/arm/mach-s3c/s3c2416.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0+
   2//
   3// Copyright (c) 2009 Yauhen Kharuzhy <jekhor@gmail.com>,
   4//      as part of OpenInkpot project
   5// Copyright (c) 2009 Promwad Innovation Company
   6//      Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com>
   7//
   8// Samsung S3C2416 Mobile CPU support
   9
  10#include <linux/kernel.h>
  11#include <linux/types.h>
  12#include <linux/interrupt.h>
  13#include <linux/list.h>
  14#include <linux/timer.h>
  15#include <linux/init.h>
  16#include <linux/gpio.h>
  17#include <linux/platform_device.h>
  18#include <linux/serial_core.h>
  19#include <linux/device.h>
  20#include <linux/syscore_ops.h>
  21#include <linux/clk.h>
  22#include <linux/io.h>
  23#include <linux/reboot.h>
  24
  25#include <asm/mach/arch.h>
  26#include <asm/mach/map.h>
  27#include <asm/mach/irq.h>
  28
  29#include "map.h"
  30#include "gpio-samsung.h"
  31#include <asm/proc-fns.h>
  32#include <asm/irq.h>
  33#include <asm/system_misc.h>
  34
  35#include "regs-s3c2443-clock.h"
  36#include "rtc-core-s3c24xx.h"
  37
  38#include "gpio-core.h"
  39#include "gpio-cfg.h"
  40#include "gpio-cfg-helpers.h"
  41#include "devs.h"
  42#include "cpu.h"
  43#include "sdhci.h"
  44#include "pm.h"
  45
  46#include "iic-core.h"
  47#include "adc-core.h"
  48
  49#include "s3c24xx.h"
  50#include "fb-core-s3c24xx.h"
  51#include "nand-core-s3c24xx.h"
  52#include "spi-core-s3c24xx.h"
  53
  54static struct map_desc s3c2416_iodesc[] __initdata __maybe_unused = {
  55        IODESC_ENT(WATCHDOG),
  56        IODESC_ENT(CLKPWR),
  57        IODESC_ENT(TIMER),
  58};
  59
  60struct bus_type s3c2416_subsys = {
  61        .name = "s3c2416-core",
  62        .dev_name = "s3c2416-core",
  63};
  64
  65static struct device s3c2416_dev = {
  66        .bus            = &s3c2416_subsys,
  67};
  68
  69int __init s3c2416_init(void)
  70{
  71        printk(KERN_INFO "S3C2416: Initializing architecture\n");
  72
  73        /* change WDT IRQ number */
  74        s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
  75        s3c_device_wdt.resource[1].end   = IRQ_S3C2443_WDT;
  76
  77        /* the i2c devices are directly compatible with s3c2440 */
  78        s3c_i2c0_setname("s3c2440-i2c");
  79        s3c_i2c1_setname("s3c2440-i2c");
  80
  81        s3c_fb_setname("s3c2443-fb");
  82
  83        s3c_adc_setname("s3c2416-adc");
  84        s3c_rtc_setname("s3c2416-rtc");
  85
  86#ifdef CONFIG_PM_SLEEP
  87        register_syscore_ops(&s3c2416_pm_syscore_ops);
  88        register_syscore_ops(&s3c24xx_irq_syscore_ops);
  89        register_syscore_ops(&s3c2416_irq_syscore_ops);
  90#endif
  91
  92        return device_register(&s3c2416_dev);
  93}
  94
  95void __init s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no)
  96{
  97        s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
  98
  99        s3c_nand_setname("s3c2412-nand");
 100}
 101
 102/* s3c2416_map_io
 103 *
 104 * register the standard cpu IO areas, and any passed in from the
 105 * machine specific initialisation.
 106 */
 107
 108void __init s3c2416_map_io(void)
 109{
 110        s3c24xx_gpiocfg_default.set_pull = samsung_gpio_setpull_updown;
 111        s3c24xx_gpiocfg_default.get_pull = samsung_gpio_getpull_updown;
 112
 113        /* initialize device information early */
 114        s3c2416_default_sdhci0();
 115        s3c2416_default_sdhci1();
 116        s3c24xx_spi_setname("s3c2443-spi");
 117
 118        iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc));
 119}
 120
 121/* need to register the subsystem before we actually register the device, and
 122 * we also need to ensure that it has been initialised before any of the
 123 * drivers even try to use it (even if not on an s3c2416 based system)
 124 * as a driver which may support both 2443 and 2440 may try and use it.
 125*/
 126
 127static int __init s3c2416_core_init(void)
 128{
 129        return subsys_system_register(&s3c2416_subsys, NULL);
 130}
 131
 132core_initcall(s3c2416_core_init);
 133