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939d28aa KK |
1 | /* 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> | |
c8d833bf | 35 | #include <plat/iic-core.h> |
e6f66a9f | 36 | #include <plat/sdhci.h> |
939d28aa KK |
37 | |
38 | /* Initial IO mappings */ | |
39 | ||
40 | static struct map_desc s5pv210_iodesc[] __initdata = { | |
41 | { | |
42 | .virtual = (unsigned long)S5P_VA_SYSTIMER, | |
43 | .pfn = __phys_to_pfn(S5PV210_PA_SYSTIMER), | |
44 | .length = SZ_1M, | |
45 | .type = MT_DEVICE, | |
46 | }, { | |
47 | .virtual = (unsigned long)VA_VIC2, | |
48 | .pfn = __phys_to_pfn(S5PV210_PA_VIC2), | |
49 | .length = SZ_16K, | |
50 | .type = MT_DEVICE, | |
51 | }, { | |
52 | .virtual = (unsigned long)VA_VIC3, | |
53 | .pfn = __phys_to_pfn(S5PV210_PA_VIC3), | |
54 | .length = SZ_16K, | |
55 | .type = MT_DEVICE, | |
56 | }, { | |
57 | .virtual = (unsigned long)S5P_VA_SROMC, | |
58 | .pfn = __phys_to_pfn(S5PV210_PA_SROMC), | |
59 | .length = SZ_4K, | |
60 | .type = MT_DEVICE, | |
61 | } | |
62 | }; | |
63 | ||
64 | static void s5pv210_idle(void) | |
65 | { | |
66 | if (!need_resched()) | |
67 | cpu_do_idle(); | |
68 | ||
69 | local_irq_enable(); | |
70 | } | |
71 | ||
72 | /* s5pv210_map_io | |
73 | * | |
74 | * register the standard cpu IO areas | |
75 | */ | |
76 | ||
77 | void __init s5pv210_map_io(void) | |
78 | { | |
41d8289d NKC |
79 | s3c_device_adc.name = "s3c64xx-adc"; |
80 | ||
939d28aa | 81 | iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc)); |
c8d833bf | 82 | |
e6f66a9f MS |
83 | /* initialise device information early */ |
84 | s5pv210_default_sdhci0(); | |
85 | s5pv210_default_sdhci1(); | |
86 | s5pv210_default_sdhci2(); | |
87 | ||
c8d833bf MS |
88 | /* the i2c devices are directly compatible with s3c2440 */ |
89 | s3c_i2c0_setname("s3c2440-i2c"); | |
90 | s3c_i2c1_setname("s3c2440-i2c"); | |
91 | s3c_i2c2_setname("s3c2440-i2c"); | |
939d28aa KK |
92 | } |
93 | ||
94 | void __init s5pv210_init_clocks(int xtal) | |
95 | { | |
96 | printk(KERN_DEBUG "%s: initializing clocks\n", __func__); | |
97 | ||
98 | s3c24xx_register_baseclocks(xtal); | |
99 | s5p_register_clocks(xtal); | |
100 | s5pv210_register_clocks(); | |
101 | s5pv210_setup_clocks(); | |
102 | } | |
103 | ||
104 | void __init s5pv210_init_irq(void) | |
105 | { | |
106 | u32 vic[4]; /* S5PV210 supports 4 VIC */ | |
107 | ||
108 | /* All the VICs are fully populated. */ | |
109 | vic[0] = ~0; | |
110 | vic[1] = ~0; | |
111 | vic[2] = ~0; | |
112 | vic[3] = ~0; | |
113 | ||
114 | s5p_init_irq(vic, ARRAY_SIZE(vic)); | |
115 | } | |
116 | ||
0ad73cef | 117 | struct sysdev_class s5pv210_sysclass = { |
939d28aa KK |
118 | .name = "s5pv210-core", |
119 | }; | |
120 | ||
121 | static struct sys_device s5pv210_sysdev = { | |
122 | .cls = &s5pv210_sysclass, | |
123 | }; | |
124 | ||
125 | static int __init s5pv210_core_init(void) | |
126 | { | |
127 | return sysdev_class_register(&s5pv210_sysclass); | |
128 | } | |
129 | ||
130 | core_initcall(s5pv210_core_init); | |
131 | ||
132 | int __init s5pv210_init(void) | |
133 | { | |
134 | printk(KERN_INFO "S5PV210: Initializing architecture\n"); | |
135 | ||
136 | /* set idle function */ | |
137 | pm_idle = s5pv210_idle; | |
138 | ||
139 | return sysdev_register(&s5pv210_sysdev); | |
140 | } |