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 "map.h"
 29#include "gpio-samsung.h"
 30#include <asm/irq.h>
 31#include <asm/system_misc.h>
 32
 33
 34#include "regs-clock.h"
 35
 36#include "cpu.h"
 37#include "devs.h"
 38#include "pm.h"
 39
 40#include "gpio-core.h"
 41#include "gpio-cfg.h"
 42#include "gpio-cfg-helpers.h"
 43
 44#include "s3c24xx.h"
 45
 46/* Initial IO mappings */
 47
 48static struct map_desc s3c2410_iodesc[] __initdata __maybe_unused = {
 49	IODESC_ENT(CLKPWR),
 50	IODESC_ENT(TIMER),
 51	IODESC_ENT(WATCHDOG),
 52};
 53
 54/* our uart devices */
 55
 56/* uart registration process */
 57
 58void __init s3c2410_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 59{
 60	s3c24xx_init_uartdevs("s3c2410-uart", s3c2410_uart_resources, cfg, no);
 61}
 62
 63/* s3c2410_map_io
 64 *
 65 * register the standard cpu IO areas, and any passed in from the
 66 * machine specific initialisation.
 67*/
 68
 69void __init s3c2410_map_io(void)
 70{
 71	s3c24xx_gpiocfg_default.set_pull = s3c24xx_gpio_setpull_1up;
 72	s3c24xx_gpiocfg_default.get_pull = s3c24xx_gpio_getpull_1up;
 73
 74	iotable_init(s3c2410_iodesc, ARRAY_SIZE(s3c2410_iodesc));
 75}
 76
 77struct bus_type s3c2410_subsys = {
 78	.name = "s3c2410-core",
 79	.dev_name = "s3c2410-core",
 80};
 81
 82/* Note, we would have liked to name this s3c2410-core, but we cannot
 83 * register two subsystems with the same name.
 84 */
 85struct bus_type s3c2410a_subsys = {
 86	.name = "s3c2410a-core",
 87	.dev_name = "s3c2410a-core",
 88};
 89
 90static struct device s3c2410_dev = {
 91	.bus		= &s3c2410_subsys,
 92};
 93
 94/* need to register the subsystem before we actually register the device, and
 95 * we also need to ensure that it has been initialised before any of the
 96 * drivers even try to use it (even if not on an s3c2410 based system)
 97 * as a driver which may support both 2410 and 2440 may try and use it.
 98*/
 99
100static int __init s3c2410_core_init(void)
101{
102	return subsys_system_register(&s3c2410_subsys, NULL);
103}
104
105core_initcall(s3c2410_core_init);
106
107static int __init s3c2410a_core_init(void)
108{
109	return subsys_system_register(&s3c2410a_subsys, NULL);
110}
111
112core_initcall(s3c2410a_core_init);
113
114int __init s3c2410_init(void)
115{
116	printk("S3C2410: Initialising architecture\n");
117
118#ifdef CONFIG_PM_SLEEP
119	register_syscore_ops(&s3c2410_pm_syscore_ops);
120	register_syscore_ops(&s3c24xx_irq_syscore_ops);
121#endif
122
123	return device_register(&s3c2410_dev);
124}
125
126int __init s3c2410a_init(void)
127{
128	s3c2410_dev.bus = &s3c2410a_subsys;
129	return s3c2410_init();
130}