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/platform_device.h> 20#include <linux/serial_core.h> 21#include <linux/sysdev.h> 22#include <linux/clk.h> 23 24#include <asm/mach/arch.h> 25#include <asm/mach/map.h> 26#include <asm/mach/irq.h> 27 28#include <asm/hardware.h> 29#include <asm/io.h> 30#include <asm/irq.h> 31 32#include <asm/arch/regs-s3c2443-clock.h> 33#include <asm/arch/reset.h> 34 35#include <asm/plat-s3c24xx/s3c2443.h> 36#include <asm/plat-s3c24xx/devs.h> 37#include <asm/plat-s3c24xx/cpu.h> 38 39static struct map_desc s3c2443_iodesc[] __initdata = { 40 IODESC_ENT(WATCHDOG), 41 IODESC_ENT(CLKPWR), 42 IODESC_ENT(TIMER), 43}; 44 45struct sysdev_class s3c2443_sysclass = { 46 set_kset_name("s3c2443-core"), 47}; 48 49static struct sys_device s3c2443_sysdev = { 50 .cls = &s3c2443_sysclass, 51}; 52 53static void s3c2443_hard_reset(void) 54{ 55 __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST); 56} 57 58int __init s3c2443_init(void) 59{ 60 printk("S3C2443: Initialising architecture\n"); 61 62 s3c24xx_reset_hook = s3c2443_hard_reset; 63 64 s3c_device_nand.name = "s3c2412-nand"; 65 66 /* change WDT IRQ number */ 67 s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT; 68 s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT; 69 70 return sysdev_register(&s3c2443_sysdev); 71} 72 73void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no) 74{ 75 s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no); 76} 77 78/* s3c2443_map_io 79 * 80 * register the standard cpu IO areas, and any passed in from the 81 * machine specific initialisation. 82 */ 83 84void __init s3c2443_map_io(struct map_desc *mach_desc, int mach_size) 85{ 86 iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc)); 87 iotable_init(mach_desc, mach_size); 88} 89 90/* need to register class 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 s3c2443 based system) 93 * as a driver which may support both 2443 and 2440 may try and use it. 94*/ 95 96static int __init s3c2443_core_init(void) 97{ 98 return sysdev_class_register(&s3c2443_sysclass); 99} 100 101core_initcall(s3c2443_core_init); 102