1/* linux/arch/arm/mach-s3c2443/s3c2443.c 2 * 3 * Copyright (c) 2007 Simtec Electronics 4 * Ben Dooks <ben@simtec.co.uk> 5 * 6 * Samsung S3C2443 Mobile CPU support 7 * 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. 11*/ 12 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/gpio.h> 20#include <linux/platform_device.h> 21#include <linux/serial_core.h> 22#include <linux/device.h> 23#include <linux/clk.h> 24#include <linux/io.h> 25 26#include <asm/mach/arch.h> 27#include <asm/mach/map.h> 28#include <asm/mach/irq.h> 29 30#include <mach/hardware.h> 31#include <asm/irq.h> 32#include <asm/system_misc.h> 33 34#include <mach/regs-s3c2443-clock.h> 35 36#include <plat/gpio-core.h> 37#include <plat/gpio-cfg.h> 38#include <plat/gpio-cfg-helpers.h> 39#include <plat/s3c2443.h> 40#include <plat/devs.h> 41#include <plat/cpu.h> 42#include <plat/fb-core.h> 43#include <plat/nand-core.h> 44#include <plat/adc-core.h> 45#include <plat/rtc-core.h> 46 47static struct map_desc s3c2443_iodesc[] __initdata = { 48 IODESC_ENT(WATCHDOG), 49 IODESC_ENT(CLKPWR), 50 IODESC_ENT(TIMER), 51}; 52 53struct bus_type s3c2443_subsys = { 54 .name = "s3c2443-core", 55 .dev_name = "s3c2443-core", 56}; 57 58static struct device s3c2443_dev = { 59 .bus = &s3c2443_subsys, 60}; 61 62void s3c2443_restart(char mode, const char *cmd) 63{ 64 if (mode == 's') 65 soft_restart(0); 66 67 __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST); 68} 69 70int __init s3c2443_init(void) 71{ 72 printk("S3C2443: Initialising architecture\n"); 73 74 s3c_nand_setname("s3c2412-nand"); 75 s3c_fb_setname("s3c2443-fb"); 76 77 s3c_adc_setname("s3c2443-adc"); 78 s3c_rtc_setname("s3c2443-rtc"); 79 80 /* change WDT IRQ number */ 81 s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT; 82 s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT; 83 84 return device_register(&s3c2443_dev); 85} 86 87void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no) 88{ 89 s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no); 90} 91 92/* s3c2443_map_io 93 * 94 * register the standard cpu IO areas, and any passed in from the 95 * machine specific initialisation. 96 */ 97 98void __init s3c2443_map_io(void) 99{ 100 s3c24xx_gpiocfg_default.set_pull = s3c2443_gpio_setpull; 101 s3c24xx_gpiocfg_default.get_pull = s3c2443_gpio_getpull; 102 103 iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc)); 104} 105 106/* need to register the subsystem before we actually register the device, and 107 * we also need to ensure that it has been initialised before any of the 108 * drivers even try to use it (even if not on an s3c2443 based system) 109 * as a driver which may support both 2443 and 2440 may try and use it. 110*/ 111 112static int __init s3c2443_core_init(void) 113{ 114 return subsys_system_register(&s3c2443_subsys, NULL); 115} 116 117core_initcall(s3c2443_core_init); 118