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/s5p6442.h>
25 #include <plat/s5p6450.h>
26 #include <plat/s5pc100.h>
27 #include <plat/s5pv210.h>
28 #include <plat/exynos4.h>
30 /* table of supported CPUs */
32 static const char name_s5p6440[] = "S5P6440";
33 static const char name_s5p6442[] = "S5P6442";
34 static const char name_s5p6450[] = "S5P6450";
35 static const char name_s5pc100[] = "S5PC100";
36 static const char name_s5pv210[] = "S5PV210/S5PC110";
37 static const char name_exynos4210[] = "EXYNOS4210";
39 static struct cpu_table cpu_ids[] __initdata = {
43 .map_io = s5p6440_map_io,
44 .init_clocks = s5p6440_init_clocks,
45 .init_uarts = s5p6440_init_uarts,
51 .map_io = s5p6442_map_io,
52 .init_clocks = s5p6442_init_clocks,
53 .init_uarts = s5p6442_init_uarts,
59 .map_io = s5p6450_map_io,
60 .init_clocks = s5p6450_init_clocks,
61 .init_uarts = s5p6450_init_uarts,
67 .map_io = s5pc100_map_io,
68 .init_clocks = s5pc100_init_clocks,
69 .init_uarts = s5pc100_init_uarts,
75 .map_io = s5pv210_map_io,
76 .init_clocks = s5pv210_init_clocks,
77 .init_uarts = s5pv210_init_uarts,
83 .map_io = exynos4_map_io,
84 .init_clocks = exynos4_init_clocks,
85 .init_uarts = exynos4_init_uarts,
87 .name = name_exynos4210,
91 /* minimal IO mapping */
93 static struct map_desc s5p_iodesc[] __initdata = {
95 .virtual = (unsigned long)S5P_VA_CHIPID,
96 .pfn = __phys_to_pfn(S5P_PA_CHIPID),
100 .virtual = (unsigned long)S3C_VA_SYS,
101 .pfn = __phys_to_pfn(S5P_PA_SYSCON),
105 .virtual = (unsigned long)S3C_VA_TIMER,
106 .pfn = __phys_to_pfn(S5P_PA_TIMER),
110 .virtual = (unsigned long)S3C_VA_WATCHDOG,
111 .pfn = __phys_to_pfn(S3C_PA_WDT),
115 .virtual = (unsigned long)S5P_VA_SROMC,
116 .pfn = __phys_to_pfn(S5P_PA_SROMC),
122 /* read cpu identification code */
124 void __init s5p_init_io(struct map_desc *mach_desc,
125 int size, void __iomem *cpuid_addr)
127 unsigned long idcode;
129 /* initialize the io descriptors we need for initialization */
130 iotable_init(s5p_iodesc, ARRAY_SIZE(s5p_iodesc));
132 iotable_init(mach_desc, size);
134 idcode = __raw_readl(cpuid_addr);
135 s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids));