xref: /OK3568_Linux_fs/kernel/arch/arm/mach-s3c/s3c2416.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)

// SPDX-License-Identifier: GPL-2.0+
//
// Copyright (c) 2009 Yauhen Kharuzhy <jekhor@gmail.com>,
//	as part of OpenInkpot project
// Copyright (c) 2009 Promwad Innovation Company
//	Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com>
//
// Samsung S3C2416 Mobile CPU support

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/device.h>
#include <linux/syscore_ops.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/reboot.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include "map.h"
#include "gpio-samsung.h"
#include <asm/proc-fns.h>
#include <asm/irq.h>
#include <asm/system_misc.h>

#include "regs-s3c2443-clock.h"
#include "rtc-core-s3c24xx.h"

#include "gpio-core.h"
#include "gpio-cfg.h"
#include "gpio-cfg-helpers.h"
#include "devs.h"
#include "cpu.h"
#include "sdhci.h"
#include "pm.h"

#include "iic-core.h"
#include "adc-core.h"

#include "s3c24xx.h"
#include "fb-core-s3c24xx.h"
#include "nand-core-s3c24xx.h"
#include "spi-core-s3c24xx.h"

static struct map_desc s3c2416_iodesc[] __initdata __maybe_unused = {
	IODESC_ENT(WATCHDOG),
	IODESC_ENT(CLKPWR),
	IODESC_ENT(TIMER),
};

struct bus_type s3c2416_subsys = {
	.name = "s3c2416-core",
	.dev_name = "s3c2416-core",
};

static struct device s3c2416_dev = {
	.bus		= &s3c2416_subsys,
};

int __init s3c2416_init(void)
{
	printk(KERN_INFO "S3C2416: Initializing architecture\n");

	/* change WDT IRQ number */
	s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
	s3c_device_wdt.resource[1].end   = IRQ_S3C2443_WDT;

	/* the i2c devices are directly compatible with s3c2440 */
	s3c_i2c0_setname("s3c2440-i2c");
	s3c_i2c1_setname("s3c2440-i2c");

	s3c_fb_setname("s3c2443-fb");

	s3c_adc_setname("s3c2416-adc");
	s3c_rtc_setname("s3c2416-rtc");

#ifdef CONFIG_PM_SLEEP
	register_syscore_ops(&s3c2416_pm_syscore_ops);
	register_syscore_ops(&s3c24xx_irq_syscore_ops);
	register_syscore_ops(&s3c2416_irq_syscore_ops);
#endif

	return device_register(&s3c2416_dev);
}

void __init s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no)
{
	s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);

	s3c_nand_setname("s3c2412-nand");
}

/* s3c2416_map_io
 *
 * register the standard cpu IO areas, and any passed in from the
 * machine specific initialisation.
 */

void __init s3c2416_map_io(void)
{
	s3c24xx_gpiocfg_default.set_pull = samsung_gpio_setpull_updown;
	s3c24xx_gpiocfg_default.get_pull = samsung_gpio_getpull_updown;

	/* initialize device information early */
	s3c2416_default_sdhci0();
	s3c2416_default_sdhci1();
	s3c24xx_spi_setname("s3c2443-spi");

	iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc));
}

/* need to register the subsystem before we actually register the device, and
 * we also need to ensure that it has been initialised before any of the
 * drivers even try to use it (even if not on an s3c2416 based system)
 * as a driver which may support both 2443 and 2440 may try and use it.
*/

static int __init s3c2416_core_init(void)
{
	return subsys_system_register(&s3c2416_subsys, NULL);
}

core_initcall(s3c2416_core_init);