blob: 8c4fdcde7f3b89fecb2a2b7162efc85dfaf91c03 [file] [log] [blame]
Kukjin Kim939d28a2010-02-24 16:40:29 +09001/* 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
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#include <mach/map.h>
29#include <mach/regs-clock.h>
30
31#include <plat/cpu.h>
32#include <plat/devs.h>
33#include <plat/clock.h>
34#include <plat/s5pv210.h>
Abhilash Kesavan4b9a5ad2010-06-08 17:11:43 +090035#include <plat/ata-core.h>
Marek Szyprowskic8d833b2010-05-20 08:13:06 +020036#include <plat/iic-core.h>
Marek Szyprowskie6f66a92010-05-20 08:13:07 +020037#include <plat/sdhci.h>
Kukjin Kim939d28a2010-02-24 16:40:29 +090038
39/* Initial IO mappings */
40
41static struct map_desc s5pv210_iodesc[] __initdata = {
42 {
43 .virtual = (unsigned long)S5P_VA_SYSTIMER,
44 .pfn = __phys_to_pfn(S5PV210_PA_SYSTIMER),
45 .length = SZ_1M,
46 .type = MT_DEVICE,
47 }, {
48 .virtual = (unsigned long)VA_VIC2,
49 .pfn = __phys_to_pfn(S5PV210_PA_VIC2),
50 .length = SZ_16K,
51 .type = MT_DEVICE,
52 }, {
53 .virtual = (unsigned long)VA_VIC3,
54 .pfn = __phys_to_pfn(S5PV210_PA_VIC3),
55 .length = SZ_16K,
56 .type = MT_DEVICE,
57 }, {
58 .virtual = (unsigned long)S5P_VA_SROMC,
59 .pfn = __phys_to_pfn(S5PV210_PA_SROMC),
60 .length = SZ_4K,
61 .type = MT_DEVICE,
62 }
63};
64
65static void s5pv210_idle(void)
66{
67 if (!need_resched())
68 cpu_do_idle();
69
70 local_irq_enable();
71}
72
73/* s5pv210_map_io
74 *
75 * register the standard cpu IO areas
76*/
77
78void __init s5pv210_map_io(void)
79{
Ben Dooksdd1ef1a2010-05-20 20:51:03 +090080#ifdef CONFIG_S3C_DEV_ADC
Naveen Krishna Ch41d82892010-05-20 11:39:54 +090081 s3c_device_adc.name = "s3c64xx-adc";
Ben Dooksdd1ef1a2010-05-20 20:51:03 +090082#endif
Kukjin Kim939d28a2010-02-24 16:40:29 +090083 iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc));
Marek Szyprowskic8d833b2010-05-20 08:13:06 +020084
Marek Szyprowskie6f66a92010-05-20 08:13:07 +020085 /* initialise device information early */
86 s5pv210_default_sdhci0();
87 s5pv210_default_sdhci1();
88 s5pv210_default_sdhci2();
89
Abhilash Kesavan4b9a5ad2010-06-08 17:11:43 +090090 s3c_cfcon_setname("s5pv210-pata");
91
Marek Szyprowskic8d833b2010-05-20 08:13:06 +020092 /* the i2c devices are directly compatible with s3c2440 */
93 s3c_i2c0_setname("s3c2440-i2c");
94 s3c_i2c1_setname("s3c2440-i2c");
95 s3c_i2c2_setname("s3c2440-i2c");
Kukjin Kim939d28a2010-02-24 16:40:29 +090096}
97
98void __init s5pv210_init_clocks(int xtal)
99{
100 printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
101
102 s3c24xx_register_baseclocks(xtal);
103 s5p_register_clocks(xtal);
104 s5pv210_register_clocks();
105 s5pv210_setup_clocks();
106}
107
108void __init s5pv210_init_irq(void)
109{
110 u32 vic[4]; /* S5PV210 supports 4 VIC */
111
112 /* All the VICs are fully populated. */
113 vic[0] = ~0;
114 vic[1] = ~0;
115 vic[2] = ~0;
116 vic[3] = ~0;
117
118 s5p_init_irq(vic, ARRAY_SIZE(vic));
119}
120
Kukjin Kim0ad73ce2010-05-11 09:56:37 +0900121struct sysdev_class s5pv210_sysclass = {
Kukjin Kim939d28a2010-02-24 16:40:29 +0900122 .name = "s5pv210-core",
123};
124
125static struct sys_device s5pv210_sysdev = {
126 .cls = &s5pv210_sysclass,
127};
128
129static int __init s5pv210_core_init(void)
130{
131 return sysdev_class_register(&s5pv210_sysclass);
132}
133
134core_initcall(s5pv210_core_init);
135
136int __init s5pv210_init(void)
137{
138 printk(KERN_INFO "S5PV210: Initializing architecture\n");
139
140 /* set idle function */
141 pm_idle = s5pv210_idle;
142
143 return sysdev_register(&s5pv210_sysdev);
144}