1 /* linux/arch/arm/mach-s5p6442/cpu.c
3 * Copyright (c) 2010 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
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.
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>
19 #include <linux/sysdev.h>
20 #include <linux/serial_core.h>
21 #include <linux/platform_device.h>
23 #include <asm/mach/arch.h>
24 #include <asm/mach/map.h>
25 #include <asm/mach/irq.h>
27 #include <asm/proc-fns.h>
29 #include <mach/hardware.h>
33 #include <plat/regs-serial.h>
34 #include <mach/regs-clock.h>
37 #include <plat/devs.h>
38 #include <plat/clock.h>
39 #include <plat/s5p6442.h>
41 /* Initial IO mappings */
43 static struct map_desc s5p6442_iodesc[] __initdata = {
45 .virtual = (unsigned long)S5P_VA_SYSTIMER,
46 .pfn = __phys_to_pfn(S5P6442_PA_SYSTIMER),
50 .virtual = (unsigned long)VA_VIC2,
51 .pfn = __phys_to_pfn(S5P6442_PA_VIC2),
57 static void s5p6442_idle(void)
67 * register the standard cpu IO areas
70 void __init s5p6442_map_io(void)
72 iotable_init(s5p6442_iodesc, ARRAY_SIZE(s5p6442_iodesc));
75 void __init s5p6442_init_clocks(int xtal)
77 printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
79 s3c24xx_register_baseclocks(xtal);
80 s5p_register_clocks(xtal);
81 s5p6442_register_clocks();
82 s5p6442_setup_clocks();
85 void __init s5p6442_init_irq(void)
87 /* S5P6442 supports 3 VIC */
90 /* VIC0, VIC1, and VIC2: some interrupt reserved */
95 s5p_init_irq(vic, ARRAY_SIZE(vic));
98 static struct sysdev_class s5p6442_sysclass = {
99 .name = "s5p6442-core",
102 static struct sys_device s5p6442_sysdev = {
103 .cls = &s5p6442_sysclass,
106 static int __init s5p6442_core_init(void)
108 return sysdev_class_register(&s5p6442_sysclass);
111 core_initcall(s5p6442_core_init);
113 int __init s5p6442_init(void)
115 printk(KERN_INFO "S5P6442: Initializing architecture\n");
117 /* set idle function */
118 pm_idle = s5p6442_idle;
120 return sysdev_register(&s5p6442_sysdev);