1 /* linux/arch/arm/plat-s5p/cpu.c
3 * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/init.h>
14 #include <linux/module.h>
16 #include <asm/mach/arch.h>
17 #include <asm/mach/map.h>
20 #include <mach/regs-clock.h>
23 #include <plat/s5p6440.h>
24 #include <plat/s5p6450.h>
25 #include <plat/s5pc100.h>
26 #include <plat/s5pv210.h>
27 #include <plat/exynos4.h>
29 /* table of supported CPUs */
31 static const char name_s5p6440[] = "S5P6440";
32 static const char name_s5p6450[] = "S5P6450";
33 static const char name_s5pc100[] = "S5PC100";
34 static const char name_s5pv210[] = "S5PV210/S5PC110";
35 static const char name_exynos4210[] = "EXYNOS4210";
36 static const char name_exynos4212[] = "EXYNOS4212";
37 static const char name_exynos4412[] = "EXYNOS4412";
39 static struct cpu_table cpu_ids[] __initdata = {
41 .idcode = S5P6440_CPU_ID,
42 .idmask = S5P64XX_CPU_MASK,
43 .map_io = s5p6440_map_io,
44 .init_clocks = s5p6440_init_clocks,
45 .init_uarts = s5p6440_init_uarts,
49 .idcode = S5P6450_CPU_ID,
50 .idmask = S5P64XX_CPU_MASK,
51 .map_io = s5p6450_map_io,
52 .init_clocks = s5p6450_init_clocks,
53 .init_uarts = s5p6450_init_uarts,
57 .idcode = S5PC100_CPU_ID,
58 .idmask = S5PC100_CPU_MASK,
59 .map_io = s5pc100_map_io,
60 .init_clocks = s5pc100_init_clocks,
61 .init_uarts = s5pc100_init_uarts,
65 .idcode = S5PV210_CPU_ID,
66 .idmask = S5PV210_CPU_MASK,
67 .map_io = s5pv210_map_io,
68 .init_clocks = s5pv210_init_clocks,
69 .init_uarts = s5pv210_init_uarts,
73 .idcode = EXYNOS4210_CPU_ID,
74 .idmask = EXYNOS4_CPU_MASK,
75 .map_io = exynos4_map_io,
76 .init_clocks = exynos4_init_clocks,
77 .init_uarts = exynos4_init_uarts,
79 .name = name_exynos4210,
81 .idcode = EXYNOS4212_CPU_ID,
82 .idmask = EXYNOS4_CPU_MASK,
83 .map_io = exynos4_map_io,
84 .init_clocks = exynos4_init_clocks,
85 .init_uarts = exynos4_init_uarts,
87 .name = name_exynos4212,
89 .idcode = EXYNOS4412_CPU_ID,
90 .idmask = EXYNOS4_CPU_MASK,
91 .map_io = exynos4_map_io,
92 .init_clocks = exynos4_init_clocks,
93 .init_uarts = exynos4_init_uarts,
95 .name = name_exynos4412,
99 /* minimal IO mapping */
101 static struct map_desc s5p_iodesc[] __initdata = {
103 .virtual = (unsigned long)S5P_VA_CHIPID,
104 .pfn = __phys_to_pfn(S5P_PA_CHIPID),
108 .virtual = (unsigned long)S3C_VA_SYS,
109 .pfn = __phys_to_pfn(S5P_PA_SYSCON),
113 .virtual = (unsigned long)S3C_VA_TIMER,
114 .pfn = __phys_to_pfn(S5P_PA_TIMER),
118 .virtual = (unsigned long)S3C_VA_WATCHDOG,
119 .pfn = __phys_to_pfn(S3C_PA_WDT),
123 .virtual = (unsigned long)S5P_VA_SROMC,
124 .pfn = __phys_to_pfn(S5P_PA_SROMC),
130 /* read cpu identification code */
132 void __init s5p_init_io(struct map_desc *mach_desc,
133 int size, void __iomem *cpuid_addr)
135 /* initialize the io descriptors we need for initialization */
136 iotable_init(s5p_iodesc, ARRAY_SIZE(s5p_iodesc));
138 iotable_init(mach_desc, size);
140 /* detect cpu id and rev. */
141 s5p_init_cpu(cpuid_addr);
143 s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));