1/* linux/arch/arm/mach-s5p6440/cpu.c 2 * 3 * Copyright (c) 2009 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/clk.h> 18#include <linux/io.h> 19#include <linux/sysdev.h> 20#include <linux/serial_core.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 30#include <mach/hardware.h> 31#include <mach/map.h> 32#include <asm/irq.h> 33 34#include <plat/regs-serial.h> 35#include <mach/regs-clock.h> 36 37#include <plat/cpu.h> 38#include <plat/devs.h> 39#include <plat/clock.h> 40#include <plat/s5p6440.h> 41#include <plat/adc-core.h> 42 43static void s5p6440_idle(void) 44{ 45 unsigned long val; 46 47 if (!need_resched()) { 48 val = __raw_readl(S5P_PWR_CFG); 49 val &= ~(0x3<<5); 50 val |= (0x1<<5); 51 __raw_writel(val, S5P_PWR_CFG); 52 53 cpu_do_idle(); 54 } 55 local_irq_enable(); 56} 57 58/* s5p6440_map_io 59 * 60 * register the standard cpu IO areas 61*/ 62 63void __init s5p6440_map_io(void) 64{ 65 /* initialize any device information early */ 66 s3c_adc_setname("s3c64xx-adc"); 67} 68 69void __init s5p6440_init_clocks(int xtal) 70{ 71 printk(KERN_DEBUG "%s: initializing clocks\n", __func__); 72 73 s3c24xx_register_baseclocks(xtal); 74 s5p_register_clocks(xtal); 75 s5p6440_register_clocks(); 76 s5p6440_setup_clocks(); 77} 78 79void __init s5p6440_init_irq(void) 80{ 81 /* S5P6440 supports only 2 VIC */ 82 u32 vic[2]; 83 84 /* 85 * VIC0 is missing IRQ_VIC0[3, 4, 8, 10, (12-22)] 86 * VIC1 is missing IRQ VIC1[1, 3, 4, 10, 11, 12, 14, 15, 22] 87 */ 88 vic[0] = 0xff800ae7; 89 vic[1] = 0xffbf23e5; 90 91 s5p_init_irq(vic, ARRAY_SIZE(vic)); 92} 93 94struct sysdev_class s5p6440_sysclass = { 95 .name = "s5p6440-core", 96}; 97 98static struct sys_device s5p6440_sysdev = { 99 .cls = &s5p6440_sysclass, 100}; 101 102static int __init s5p6440_core_init(void) 103{ 104 return sysdev_class_register(&s5p6440_sysclass); 105} 106 107core_initcall(s5p6440_core_init); 108 109int __init s5p6440_init(void) 110{ 111 printk(KERN_INFO "S5P6440: Initializing architecture\n"); 112 113 /* set idle function */ 114 pm_idle = s5p6440_idle; 115 116 return sysdev_register(&s5p6440_sysdev); 117} 118