arch/arm/mach-s3c/s3c2416.c

   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
  54 static struct map_desc s3c2416_iodesc[] __initdata __maybe_unused = {
  55         IODESC_ENT(WATCHDOG),
  56         IODESC_ENT(CLKPWR),
  57         IODESC_ENT(TIMER),
  58 };
  59
  60 struct bus_type s3c2416_subsys = {
  61         .name = "s3c2416-core",
  62         .dev_name = "s3c2416-core",
  63 };
  64
  65 static struct device s3c2416_dev = {
  66         .bus            = &s3c2416_subsys,
  67 };
  68
  69 int __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
  95 void __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
 108 void __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
 127 static int __init s3c2416_core_init(void)
 128 {
 129         return subsys_system_register(&s3c2416_subsys, NULL);
 130 }
 131
 132 core_initcall(s3c2416_core_init);