1/* linux/arch/arm/mach-s5pc100/cpu.c 2 * 3 * Copyright 2009 Samsung Electronics Co. 4 * Byungho Min <bhmin@samsung.com> 5 * 6 * Based on mach-s3c6410/cpu.c 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/clk.h> 20#include <linux/io.h> 21#include <linux/sysdev.h> 22#include <linux/serial_core.h> 23#include <linux/platform_device.h> 24#include <linux/sched.h> 25 26#include <asm/mach/arch.h> 27#include <asm/mach/map.h> 28#include <asm/mach/irq.h> 29 30#include <asm/proc-fns.h> 31 32#include <mach/hardware.h> 33#include <mach/map.h> 34#include <asm/irq.h> 35 36#include <plat/regs-serial.h> 37#include <mach/regs-clock.h> 38 39#include <plat/cpu.h> 40#include <plat/devs.h> 41#include <plat/clock.h> 42#include <plat/ata-core.h> 43#include <plat/iic-core.h> 44#include <plat/sdhci.h> 45#include <plat/adc-core.h> 46#include <plat/onenand-core.h> 47#include <plat/fb-core.h> 48 49#include <plat/s5pc100.h> 50 51/* Initial IO mappings */ 52 53static struct map_desc s5pc100_iodesc[] __initdata = { 54 { 55 .virtual = (unsigned long)S5P_VA_SYSTIMER, 56 .pfn = __phys_to_pfn(S5PC100_PA_SYSTIMER), 57 .length = SZ_16K, 58 .type = MT_DEVICE, 59 }, { 60 .virtual = (unsigned long)VA_VIC2, 61 .pfn = __phys_to_pfn(S5P_PA_VIC2), 62 .length = SZ_16K, 63 .type = MT_DEVICE, 64 }, { 65 .virtual = (unsigned long)S5PC100_VA_OTHERS, 66 .pfn = __phys_to_pfn(S5PC100_PA_OTHERS), 67 .length = SZ_4K, 68 .type = MT_DEVICE, 69 } 70}; 71 72static void s5pc100_idle(void) 73{ 74 if (!need_resched()) 75 cpu_do_idle(); 76 77 local_irq_enable(); 78} 79 80/* s5pc100_map_io 81 * 82 * register the standard cpu IO areas 83*/ 84 85void __init s5pc100_map_io(void) 86{ 87 iotable_init(s5pc100_iodesc, ARRAY_SIZE(s5pc100_iodesc)); 88 89 /* initialise device information early */ 90 s5pc100_default_sdhci0(); 91 s5pc100_default_sdhci1(); 92 s5pc100_default_sdhci2(); 93 94 s3c_adc_setname("s3c64xx-adc"); 95 96 /* the i2c devices are directly compatible with s3c2440 */ 97 s3c_i2c0_setname("s3c2440-i2c"); 98 s3c_i2c1_setname("s3c2440-i2c"); 99 100 s3c_onenand_setname("s5pc100-onenand"); 101 s3c_fb_setname("s5pc100-fb"); 102 s3c_cfcon_setname("s5pc100-pata"); 103} 104 105void __init s5pc100_init_clocks(int xtal) 106{ 107 printk(KERN_DEBUG "%s: initializing clocks\n", __func__); 108 109 s3c24xx_register_baseclocks(xtal); 110 s5p_register_clocks(xtal); 111 s5pc100_register_clocks(); 112 s5pc100_setup_clocks(); 113} 114 115void __init s5pc100_init_irq(void) 116{ 117 u32 vic[] = {~0, ~0, ~0}; 118 119 /* VIC0, VIC1, and VIC2 are fully populated. */ 120 s5p_init_irq(vic, ARRAY_SIZE(vic)); 121} 122 123static struct sysdev_class s5pc100_sysclass = { 124 .name = "s5pc100-core", 125}; 126 127static struct sys_device s5pc100_sysdev = { 128 .cls = &s5pc100_sysclass, 129}; 130 131static int __init s5pc100_core_init(void) 132{ 133 return sysdev_class_register(&s5pc100_sysclass); 134} 135 136core_initcall(s5pc100_core_init); 137 138int __init s5pc100_init(void) 139{ 140 printk(KERN_INFO "S5PC100: Initializing architecture\n"); 141 142 /* set idle function */ 143 pm_idle = s5pc100_idle; 144 145 return sysdev_register(&s5pc100_sysdev); 146} 147