Merge branch 'fixes-modulesplit' into fixes
[zen-stable.git] / arch / arm / mach-s5pv210 / cpu.c
blob84ec746332328d0cfd5b5f81ed1e338c7399d428
1 /* linux/arch/arm/mach-s5pv210/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.
9 */
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 #include <linux/dma-mapping.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/map.h>
27 #include <asm/mach/irq.h>
29 #include <asm/proc-fns.h>
30 #include <mach/map.h>
31 #include <mach/regs-clock.h>
33 #include <plat/cpu.h>
34 #include <plat/devs.h>
35 #include <plat/clock.h>
36 #include <plat/fb-core.h>
37 #include <plat/s5pv210.h>
38 #include <plat/adc-core.h>
39 #include <plat/ata-core.h>
40 #include <plat/fimc-core.h>
41 #include <plat/iic-core.h>
42 #include <plat/keypad-core.h>
43 #include <plat/sdhci.h>
44 #include <plat/reset.h>
45 #include <plat/tv-core.h>
47 /* Initial IO mappings */
49 static struct map_desc s5pv210_iodesc[] __initdata = {
51 .virtual = (unsigned long)S5P_VA_SYSTIMER,
52 .pfn = __phys_to_pfn(S5PV210_PA_SYSTIMER),
53 .length = SZ_4K,
54 .type = MT_DEVICE,
55 }, {
56 .virtual = (unsigned long)S5P_VA_GPIO,
57 .pfn = __phys_to_pfn(S5PV210_PA_GPIO),
58 .length = SZ_4K,
59 .type = MT_DEVICE,
60 }, {
61 .virtual = (unsigned long)VA_VIC0,
62 .pfn = __phys_to_pfn(S5PV210_PA_VIC0),
63 .length = SZ_16K,
64 .type = MT_DEVICE,
65 }, {
66 .virtual = (unsigned long)VA_VIC1,
67 .pfn = __phys_to_pfn(S5PV210_PA_VIC1),
68 .length = SZ_16K,
69 .type = MT_DEVICE,
70 }, {
71 .virtual = (unsigned long)VA_VIC2,
72 .pfn = __phys_to_pfn(S5PV210_PA_VIC2),
73 .length = SZ_16K,
74 .type = MT_DEVICE,
75 }, {
76 .virtual = (unsigned long)VA_VIC3,
77 .pfn = __phys_to_pfn(S5PV210_PA_VIC3),
78 .length = SZ_16K,
79 .type = MT_DEVICE,
80 }, {
81 .virtual = (unsigned long)S3C_VA_UART,
82 .pfn = __phys_to_pfn(S3C_PA_UART),
83 .length = SZ_512K,
84 .type = MT_DEVICE,
85 }, {
86 .virtual = (unsigned long)S5P_VA_DMC0,
87 .pfn = __phys_to_pfn(S5PV210_PA_DMC0),
88 .length = SZ_4K,
89 .type = MT_DEVICE,
90 }, {
91 .virtual = (unsigned long)S5P_VA_DMC1,
92 .pfn = __phys_to_pfn(S5PV210_PA_DMC1),
93 .length = SZ_4K,
94 .type = MT_DEVICE,
95 }, {
96 .virtual = (unsigned long)S3C_VA_USB_HSPHY,
97 .pfn =__phys_to_pfn(S5PV210_PA_HSPHY),
98 .length = SZ_4K,
99 .type = MT_DEVICE,
103 static void s5pv210_idle(void)
105 if (!need_resched())
106 cpu_do_idle();
108 local_irq_enable();
111 static void s5pv210_sw_reset(void)
113 __raw_writel(0x1, S5P_SWRESET);
116 /* s5pv210_map_io
118 * register the standard cpu IO areas
121 void __init s5pv210_map_io(void)
123 iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc));
124 init_consistent_dma_size(14 << 20);
126 /* initialise device information early */
127 s5pv210_default_sdhci0();
128 s5pv210_default_sdhci1();
129 s5pv210_default_sdhci2();
130 s5pv210_default_sdhci3();
132 s3c_adc_setname("samsung-adc-v3");
134 s3c_cfcon_setname("s5pv210-pata");
136 s3c_fimc_setname(0, "s5pv210-fimc");
137 s3c_fimc_setname(1, "s5pv210-fimc");
138 s3c_fimc_setname(2, "s5pv210-fimc");
140 /* the i2c devices are directly compatible with s3c2440 */
141 s3c_i2c0_setname("s3c2440-i2c");
142 s3c_i2c1_setname("s3c2440-i2c");
143 s3c_i2c2_setname("s3c2440-i2c");
145 s3c_fb_setname("s5pv210-fb");
147 /* Use s5pv210-keypad instead of samsung-keypad */
148 samsung_keypad_setname("s5pv210-keypad");
150 /* setup TV devices */
151 s5p_hdmi_setname("s5pv210-hdmi");
154 void __init s5pv210_init_clocks(int xtal)
156 printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
158 s3c24xx_register_baseclocks(xtal);
159 s5p_register_clocks(xtal);
160 s5pv210_register_clocks();
161 s5pv210_setup_clocks();
164 void __init s5pv210_init_irq(void)
166 u32 vic[4]; /* S5PV210 supports 4 VIC */
168 /* All the VICs are fully populated. */
169 vic[0] = ~0;
170 vic[1] = ~0;
171 vic[2] = ~0;
172 vic[3] = ~0;
174 s5p_init_irq(vic, ARRAY_SIZE(vic));
177 struct sysdev_class s5pv210_sysclass = {
178 .name = "s5pv210-core",
181 static struct sys_device s5pv210_sysdev = {
182 .cls = &s5pv210_sysclass,
185 static int __init s5pv210_core_init(void)
187 return sysdev_class_register(&s5pv210_sysclass);
190 core_initcall(s5pv210_core_init);
192 int __init s5pv210_init(void)
194 printk(KERN_INFO "S5PV210: Initializing architecture\n");
196 /* set idle function */
197 pm_idle = s5pv210_idle;
199 /* set sw_reset function */
200 s5p_reset_hook = s5pv210_sw_reset;
202 return sysdev_register(&s5pv210_sysdev);