139 lines
3.2 KiB
C
139 lines
3.2 KiB
C
/* linux/arch/arm/plat-s3c24xx/s3c244x.c
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*
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* Copyright (c) 2004-2006 Simtec Electronics
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* Ben Dooks <ben@simtec.co.uk>
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*
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* Samsung S3C2440 and S3C2442 Mobile CPU support (not S3C2443)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/serial_core.h>
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#include <linux/serial_s3c.h>
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#include <linux/platform_device.h>
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#include <linux/reboot.h>
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#include <linux/device.h>
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#include <linux/syscore_ops.h>
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#include <linux/clk.h>
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#include <linux/io.h>
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#include <asm/system_misc.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <mach/hardware.h>
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#include <asm/irq.h>
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#include <plat/cpu-freq.h>
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#include <mach/regs-clock.h>
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#include <mach/regs-gpio.h>
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#include <plat/devs.h>
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#include <plat/cpu.h>
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#include <plat/pm.h>
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#include <plat/nand-core.h>
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#include "common.h"
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#include "regs-dsc.h"
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static struct map_desc s3c244x_iodesc[] __initdata = {
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IODESC_ENT(CLKPWR),
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IODESC_ENT(TIMER),
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IODESC_ENT(WATCHDOG),
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};
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/* uart initialisation */
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void __init s3c244x_init_uarts(struct s3c2410_uartcfg *cfg, int no)
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{
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s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
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}
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void __init s3c244x_map_io(void)
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{
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/* register our io-tables */
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iotable_init(s3c244x_iodesc, ARRAY_SIZE(s3c244x_iodesc));
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/* rename any peripherals used differing from the s3c2410 */
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s3c_device_sdi.name = "s3c2440-sdi";
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s3c_device_i2c0.name = "s3c2440-i2c";
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s3c_nand_setname("s3c2440-nand");
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s3c_device_ts.name = "s3c2440-ts";
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s3c_device_usbgadget.name = "s3c2440-usbgadget";
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s3c2410_device_dclk.name = "s3c2440-dclk";
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}
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/* Since the S3C2442 and S3C2440 share items, put both subsystems here */
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struct bus_type s3c2440_subsys = {
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.name = "s3c2440-core",
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.dev_name = "s3c2440-core",
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};
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struct bus_type s3c2442_subsys = {
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.name = "s3c2442-core",
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.dev_name = "s3c2442-core",
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};
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/* need to register the subsystem before we actually register the device, and
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* we also need to ensure that it has been initialised before any of the
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* drivers even try to use it (even if not on an s3c2440 based system)
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* as a driver which may support both 2410 and 2440 may try and use it.
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*/
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static int __init s3c2440_core_init(void)
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{
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return subsys_system_register(&s3c2440_subsys, NULL);
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}
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core_initcall(s3c2440_core_init);
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static int __init s3c2442_core_init(void)
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{
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return subsys_system_register(&s3c2442_subsys, NULL);
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}
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core_initcall(s3c2442_core_init);
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#ifdef CONFIG_PM
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static struct sleep_save s3c244x_sleep[] = {
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SAVE_ITEM(S3C2440_DSC0),
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SAVE_ITEM(S3C2440_DSC1),
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SAVE_ITEM(S3C2440_GPJDAT),
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SAVE_ITEM(S3C2440_GPJCON),
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SAVE_ITEM(S3C2440_GPJUP)
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};
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static int s3c244x_suspend(void)
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{
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s3c_pm_do_save(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep));
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return 0;
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}
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static void s3c244x_resume(void)
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{
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s3c_pm_do_restore(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep));
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}
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#else
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#define s3c244x_suspend NULL
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#define s3c244x_resume NULL
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#endif
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struct syscore_ops s3c244x_pm_syscore_ops = {
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.suspend = s3c244x_suspend,
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.resume = s3c244x_resume,
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};
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