projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 209fecd1 KK |
1 | /* linux/arch/arm/plat-s5p/cpu.c |
| 2 | * | |
| 3 | * Copyright (c) 2009 Samsung Electronics Co., Ltd. | |
| 4 | * http://www.samsung.com/ | |
| 5 | * | |
| 6 | * S5P CPU Support | |
| 7 | * | |
| 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. | |
| 11 | */ | |
| 12 | ||
| 13 | #include <linux/init.h> | |
| 14 | #include <linux/module.h> | |
| 15 | #include <mach/map.h> | |
| 16 | #include <asm/mach/arch.h> | |
| 17 | #include <asm/mach/map.h> | |
| 18 | #include <mach/regs-clock.h> | |
| 19 | #include <plat/cpu.h> | |
| 20 | #include <plat/s5p6440.h> | |
| 5f7f6a4a | 21 | #include <plat/s5p6442.h> |
| acc84707 | 22 | #include <plat/s5pc100.h> |
| 939d28aa | 23 | #include <plat/s5pv210.h> |
| 209fecd1 KK |
24 | |
| 25 | /* table of supported CPUs */ | |
| 26 | ||
| 27 | static const char name_s5p6440[] = "S5P6440"; | |
| 5f7f6a4a | 28 | static const char name_s5p6442[] = "S5P6442"; |
| acc84707 | 29 | static const char name_s5pc100[] = "S5PC100"; |
| 939d28aa | 30 | static const char name_s5pv210[] = "S5PV210/S5PC110"; |
| 209fecd1 KK |
31 | |
| 32 | static struct cpu_table cpu_ids[] __initdata = { | |
| 33 | { | |
| 34 | .idcode = 0x56440100, | |
| 35 | .idmask = 0xffffff00, | |
| 36 | .map_io = s5p6440_map_io, | |
| 37 | .init_clocks = s5p6440_init_clocks, | |
| 38 | .init_uarts = s5p6440_init_uarts, | |
| 39 | .init = s5p6440_init, | |
| 40 | .name = name_s5p6440, | |
| 5f7f6a4a KK |
41 | }, { |
| 42 | .idcode = 0x36442000, | |
| 43 | .idmask = 0xffffff00, | |
| 44 | .map_io = s5p6442_map_io, | |
| 45 | .init_clocks = s5p6442_init_clocks, | |
| 46 | .init_uarts = s5p6442_init_uarts, | |
| 47 | .init = s5p6442_init, | |
| 48 | .name = name_s5p6442, | |
| acc84707 MS |
49 | }, { |
| 50 | .idcode = 0x43100000, | |
| 51 | .idmask = 0xfffff000, | |
| 52 | .map_io = s5pc100_map_io, | |
| 53 | .init_clocks = s5pc100_init_clocks, | |
| 54 | .init_uarts = s5pc100_init_uarts, | |
| 55 | .init = s5pc100_init, | |
| 56 | .name = name_s5pc100, | |
| 939d28aa KK |
57 | }, { |
| 58 | .idcode = 0x43110000, | |
| 59 | .idmask = 0xfffff000, | |
| 60 | .map_io = s5pv210_map_io, | |
| 61 | .init_clocks = s5pv210_init_clocks, | |
| 62 | .init_uarts = s5pv210_init_uarts, | |
| 63 | .init = s5pv210_init, | |
| 64 | .name = name_s5pv210, | |
| 209fecd1 KK |
65 | }, |
| 66 | }; | |
| 67 | ||
| 68 | /* minimal IO mapping */ | |
| 69 | ||
| 209fecd1 KK |
70 | static struct map_desc s5p_iodesc[] __initdata = { |
| 71 | { | |
| 81317960 KK |
72 | .virtual = (unsigned long)S5P_VA_CHIPID, |
| 73 | .pfn = __phys_to_pfn(S5P_PA_CHIPID), | |
| 74 | .length = SZ_4K, | |
| 75 | .type = MT_DEVICE, | |
| 76 | }, { | |
| 77 | .virtual = (unsigned long)S3C_VA_SYS, | |
| 209fecd1 KK |
78 | .pfn = __phys_to_pfn(S5P_PA_SYSCON), |
| 79 | .length = SZ_64K, | |
| 80 | .type = MT_DEVICE, | |
| 81 | }, { | |
| 81317960 KK |
82 | .virtual = (unsigned long)S3C_VA_UART, |
| 83 | .pfn = __phys_to_pfn(S3C_PA_UART), | |
| 209fecd1 KK |
84 | .length = SZ_4K, |
| 85 | .type = MT_DEVICE, | |
| 86 | }, { | |
| 81317960 | 87 | .virtual = (unsigned long)VA_VIC0, |
| 209fecd1 KK |
88 | .pfn = __phys_to_pfn(S5P_PA_VIC0), |
| 89 | .length = SZ_16K, | |
| 90 | .type = MT_DEVICE, | |
| 91 | }, { | |
| 81317960 | 92 | .virtual = (unsigned long)VA_VIC1, |
| 209fecd1 KK |
93 | .pfn = __phys_to_pfn(S5P_PA_VIC1), |
| 94 | .length = SZ_16K, | |
| 95 | .type = MT_DEVICE, | |
| 96 | }, { | |
| 81317960 | 97 | .virtual = (unsigned long)S3C_VA_TIMER, |
| 209fecd1 KK |
98 | .pfn = __phys_to_pfn(S5P_PA_TIMER), |
| 99 | .length = SZ_16K, | |
| 100 | .type = MT_DEVICE, | |
| 101 | }, { | |
| 102 | .virtual = (unsigned long)S5P_VA_GPIO, | |
| 103 | .pfn = __phys_to_pfn(S5P_PA_GPIO), | |
| 104 | .length = SZ_4K, | |
| 105 | .type = MT_DEVICE, | |
| 106 | }, | |
| 107 | }; | |
| 108 | ||
| 109 | /* read cpu identification code */ | |
| 110 | ||
| 111 | void __init s5p_init_io(struct map_desc *mach_desc, | |
| 112 | int size, void __iomem *cpuid_addr) | |
| 113 | { | |
| 114 | unsigned long idcode; | |
| 115 | ||
| 116 | /* initialize the io descriptors we need for initialization */ | |
| 117 | iotable_init(s5p_iodesc, ARRAY_SIZE(s5p_iodesc)); | |
| 118 | if (mach_desc) | |
| 119 | iotable_init(mach_desc, size); | |
| 120 | ||
| 121 | idcode = __raw_readl(cpuid_addr); | |
| 122 | s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids)); | |
| 123 | } |