blob: b2fe6a58155a66915dc745402f8221ebf3b7fd0f [file] [log] [blame]
Kukjin Kim209fecd2010-01-14 15:29:17 +09001/* 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
23#include <asm/mach/arch.h>
24#include <asm/mach/map.h>
25#include <asm/mach/irq.h>
26
27#include <asm/proc-fns.h>
28
29#include <mach/hardware.h>
30#include <mach/map.h>
31#include <asm/irq.h>
32
33#include <plat/regs-serial.h>
34#include <mach/regs-clock.h>
35
36#include <plat/cpu.h>
37#include <plat/devs.h>
38#include <plat/clock.h>
39#include <plat/s5p6440.h>
40
41static void s5p6440_idle(void)
42{
43 unsigned long val;
44
45 if (!need_resched()) {
46 val = __raw_readl(S5P_PWR_CFG);
47 val &= ~(0x3<<5);
48 val |= (0x1<<5);
49 __raw_writel(val, S5P_PWR_CFG);
50
51 cpu_do_idle();
52 }
53 local_irq_enable();
54}
55
56/* s5p6440_map_io
57 *
58 * register the standard cpu IO areas
59*/
60
61void __init s5p6440_map_io(void)
62{
63 /* initialize any device information early */
Naveen Krishna Ch09cae8f2010-05-20 11:39:53 +090064 s3c_device_adc.name = "s3c64xx-adc";
Kukjin Kim209fecd2010-01-14 15:29:17 +090065}
66
67void __init s5p6440_init_clocks(int xtal)
68{
69 printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
70
71 s3c24xx_register_baseclocks(xtal);
72 s5p_register_clocks(xtal);
73 s5p6440_register_clocks();
74 s5p6440_setup_clocks();
75}
76
77void __init s5p6440_init_irq(void)
78{
79 /* S5P6440 supports only 2 VIC */
80 u32 vic[2];
81
82 /*
83 * VIC0 is missing IRQ_VIC0[3, 4, 8, 10, (12-22)]
84 * VIC1 is missing IRQ VIC1[1, 3, 4, 10, 11, 12, 14, 15, 22]
85 */
86 vic[0] = 0xff800ae7;
87 vic[1] = 0xffbf23e5;
88
89 s5p_init_irq(vic, ARRAY_SIZE(vic));
90}
91
Kukjin Kim0ad73ce2010-05-11 09:56:37 +090092struct sysdev_class s5p6440_sysclass = {
Kukjin Kim209fecd2010-01-14 15:29:17 +090093 .name = "s5p6440-core",
94};
95
96static struct sys_device s5p6440_sysdev = {
97 .cls = &s5p6440_sysclass,
98};
99
100static int __init s5p6440_core_init(void)
101{
102 return sysdev_class_register(&s5p6440_sysclass);
103}
104
105core_initcall(s5p6440_core_init);
106
107int __init s5p6440_init(void)
108{
109 printk(KERN_INFO "S5P6440: Initializing architecture\n");
110
111 /* set idle function */
112 pm_idle = s5p6440_idle;
113
114 return sysdev_register(&s5p6440_sysdev);
115}