1/* linux/arch/arm/mach-s5pv210/cpu.c 2 * 3 * Copyright (c) 2010 Samsung Electronics Co., Ltd. 4 * http://www.samsung.com/ 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9*/ 10 11#include <linux/kernel.h> 12#include <linux/types.h> 13#include <linux/interrupt.h> 14#include <linux/list.h> 15#include <linux/timer.h> 16#include <linux/init.h> 17#include <linux/module.h> 18#include <linux/clk.h> 19#include <linux/io.h> 20#include <linux/sysdev.h> 21#include <linux/platform_device.h> 22#include <linux/sched.h> 23 24#include <asm/mach/arch.h> 25#include <asm/mach/map.h> 26#include <asm/mach/irq.h> 27 28#include <asm/proc-fns.h> 29#include <mach/map.h> 30#include <mach/regs-clock.h> 31 32#include <plat/cpu.h> 33#include <plat/devs.h> 34#include <plat/clock.h> 35#include <plat/fb-core.h> 36#include <plat/s5pv210.h> 37#include <plat/adc-core.h> 38#include <plat/ata-core.h> 39#include <plat/fimc-core.h> 40#include <plat/iic-core.h> 41#include <plat/keypad-core.h> 42#include <plat/sdhci.h> 43#include <plat/reset.h> 44 45/* Initial IO mappings */ 46 47static struct map_desc s5pv210_iodesc[] __initdata = { 48 { 49 .virtual = (unsigned long)S5P_VA_SYSTIMER, 50 .pfn = __phys_to_pfn(S5PV210_PA_SYSTIMER), 51 .length = SZ_4K, 52 .type = MT_DEVICE, 53 }, { 54 .virtual = (unsigned long)VA_VIC2, 55 .pfn = __phys_to_pfn(S5PV210_PA_VIC2), 56 .length = SZ_16K, 57 .type = MT_DEVICE, 58 }, { 59 .virtual = (unsigned long)VA_VIC3, 60 .pfn = __phys_to_pfn(S5PV210_PA_VIC3), 61 .length = SZ_16K, 62 .type = MT_DEVICE, 63 }, { 64 .virtual = (unsigned long)S5P_VA_SROMC, 65 .pfn = __phys_to_pfn(S5PV210_PA_SROMC), 66 .length = SZ_4K, 67 .type = MT_DEVICE, 68 } 69}; 70 71static void s5pv210_idle(void) 72{ 73 if (!need_resched()) 74 cpu_do_idle(); 75 76 local_irq_enable(); 77} 78 79static void s5pv210_sw_reset(void) 80{ 81 __raw_writel(0x1, S5P_SWRESET); 82} 83 84/* s5pv210_map_io 85 * 86 * register the standard cpu IO areas 87*/ 88 89void __init s5pv210_map_io(void) 90{ 91 iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc)); 92 93 /* initialise device information early */ 94 s5pv210_default_sdhci0(); 95 s5pv210_default_sdhci1(); 96 s5pv210_default_sdhci2(); 97 s5pv210_default_sdhci3(); 98 99 s3c_adc_setname("s3c64xx-adc"); 100 101 s3c_cfcon_setname("s5pv210-pata"); 102 103 s3c_fimc_setname(0, "s5pv210-fimc"); 104 s3c_fimc_setname(1, "s5pv210-fimc"); 105 s3c_fimc_setname(2, "s5pv210-fimc"); 106 107 /* the i2c devices are directly compatible with s3c2440 */ 108 s3c_i2c0_setname("s3c2440-i2c"); 109 s3c_i2c1_setname("s3c2440-i2c"); 110 s3c_i2c2_setname("s3c2440-i2c"); 111 112 s3c_fb_setname("s5pv210-fb"); 113 114 /* Use s5pv210-keypad instead of samsung-keypad */ 115 samsung_keypad_setname("s5pv210-keypad"); 116} 117 118void __init s5pv210_init_clocks(int xtal) 119{ 120 printk(KERN_DEBUG "%s: initializing clocks\n", __func__); 121 122 s3c24xx_register_baseclocks(xtal); 123 s5p_register_clocks(xtal); 124 s5pv210_register_clocks(); 125 s5pv210_setup_clocks(); 126} 127 128void __init s5pv210_init_irq(void) 129{ 130 u32 vic[4]; /* S5PV210 supports 4 VIC */ 131 132 /* All the VICs are fully populated. */ 133 vic[0] = ~0; 134 vic[1] = ~0; 135 vic[2] = ~0; 136 vic[3] = ~0; 137 138 s5p_init_irq(vic, ARRAY_SIZE(vic)); 139} 140 141struct sysdev_class s5pv210_sysclass = { 142 .name = "s5pv210-core", 143}; 144 145static struct sys_device s5pv210_sysdev = { 146 .cls = &s5pv210_sysclass, 147}; 148 149static int __init s5pv210_core_init(void) 150{ 151 return sysdev_class_register(&s5pv210_sysclass); 152} 153 154core_initcall(s5pv210_core_init); 155 156int __init s5pv210_init(void) 157{ 158 printk(KERN_INFO "S5PV210: Initializing architecture\n"); 159 160 /* set idle function */ 161 pm_idle = s5pv210_idle; 162 163 /* set sw_reset function */ 164 s5p_reset_hook = s5pv210_sw_reset; 165 166 return sysdev_register(&s5pv210_sysdev); 167} 168