1 /* linux/arch/arm/plat-s3c24xx/s3c244x.c
3 * Copyright (c) 2004-2006 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
6 * Samsung S3C2440 and S3C2442 Mobile CPU support (not S3C2443)
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/kernel.h>
14 #include <linux/types.h>
15 #include <linux/interrupt.h>
16 #include <linux/list.h>
17 #include <linux/timer.h>
18 #include <linux/init.h>
19 #include <linux/serial_core.h>
20 #include <linux/serial_s3c.h>
21 #include <linux/platform_device.h>
22 #include <linux/reboot.h>
23 #include <linux/device.h>
24 #include <linux/syscore_ops.h>
25 #include <linux/clk.h>
28 #include <asm/system_misc.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/map.h>
31 #include <asm/mach/irq.h>
33 #include <mach/hardware.h>
36 #include <plat/cpu-freq.h>
38 #include <mach/regs-clock.h>
39 #include <mach/regs-gpio.h>
41 #include <plat/devs.h>
44 #include <plat/nand-core.h>
49 static struct map_desc s3c244x_iodesc[] __initdata = {
55 /* uart initialisation */
57 void __init s3c244x_init_uarts(struct s3c2410_uartcfg *cfg, int no)
59 s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
62 void __init s3c244x_map_io(void)
64 /* register our io-tables */
66 iotable_init(s3c244x_iodesc, ARRAY_SIZE(s3c244x_iodesc));
68 /* rename any peripherals used differing from the s3c2410 */
70 s3c_device_sdi.name = "s3c2440-sdi";
71 s3c_device_i2c0.name = "s3c2440-i2c";
72 s3c_nand_setname("s3c2440-nand");
73 s3c_device_ts.name = "s3c2440-ts";
74 s3c_device_usbgadget.name = "s3c2440-usbgadget";
75 s3c2410_device_dclk.name = "s3c2440-dclk";
78 /* Since the S3C2442 and S3C2440 share items, put both subsystems here */
80 struct bus_type s3c2440_subsys = {
81 .name = "s3c2440-core",
82 .dev_name = "s3c2440-core",
85 struct bus_type s3c2442_subsys = {
86 .name = "s3c2442-core",
87 .dev_name = "s3c2442-core",
90 /* need to register the subsystem before we actually register the device, and
91 * we also need to ensure that it has been initialised before any of the
92 * drivers even try to use it (even if not on an s3c2440 based system)
93 * as a driver which may support both 2410 and 2440 may try and use it.
96 static int __init s3c2440_core_init(void)
98 return subsys_system_register(&s3c2440_subsys, NULL);
101 core_initcall(s3c2440_core_init);
103 static int __init s3c2442_core_init(void)
105 return subsys_system_register(&s3c2442_subsys, NULL);
108 core_initcall(s3c2442_core_init);
111 #ifdef CONFIG_PM_SLEEP
112 static struct sleep_save s3c244x_sleep[] = {
113 SAVE_ITEM(S3C2440_DSC0),
114 SAVE_ITEM(S3C2440_DSC1),
115 SAVE_ITEM(S3C2440_GPJDAT),
116 SAVE_ITEM(S3C2440_GPJCON),
117 SAVE_ITEM(S3C2440_GPJUP)
120 static int s3c244x_suspend(void)
122 s3c_pm_do_save(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep));
126 static void s3c244x_resume(void)
128 s3c_pm_do_restore(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep));
131 struct syscore_ops s3c244x_pm_syscore_ops = {
132 .suspend = s3c244x_suspend,
133 .resume = s3c244x_resume,