arch/arm/mm/proc-arm7tdmi.S

   1 /*
   2  *  linux/arch/arm/mm/proc-arm7tdmi.S: utility functions for ARM7TDMI
   3  *
   4  *  Copyright (C) 2003-2006 Hyok S. Choi <hyok.choi@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/linkage.h>
  12 #include <linux/init.h>
  13 #include <asm/assembler.h>
  14 #include <asm/asm-offsets.h>
  15 #include <asm/hwcap.h>
  16 #include <asm/pgtable-hwdef.h>
  17 #include <asm/pgtable.h>
  18 #include <asm/ptrace.h>
  19
  20         .text
  21 /*
  22  * cpu_arm7tdmi_proc_init()
  23  * cpu_arm7tdmi_do_idle()
  24  * cpu_arm7tdmi_dcache_clean_area()
  25  * cpu_arm7tdmi_switch_mm()
  26  *
  27  * These are not required.
  28  */
  29 ENTRY(cpu_arm7tdmi_proc_init)
  30 ENTRY(cpu_arm7tdmi_do_idle)
  31 ENTRY(cpu_arm7tdmi_dcache_clean_area)
  32 ENTRY(cpu_arm7tdmi_switch_mm)
  33                 mov     pc, lr
  34
  35 /*
  36  * cpu_arm7tdmi_proc_fin()
  37  */
  38 ENTRY(cpu_arm7tdmi_proc_fin)
  39                 mov     pc, lr
  40
  41 /*
  42  * Function: cpu_arm7tdmi_reset(loc)
  43  * Params  : loc(r0)    address to jump to
  44  * Purpose : Sets up everything for a reset and jump to the location for soft reset.
  45  */
  46 ENTRY(cpu_arm7tdmi_reset)
  47                 mov     pc, r0
  48
  49                 __CPUINIT
  50
  51                 .type   __arm7tdmi_setup, #function
  52 __arm7tdmi_setup:
  53                 mov     pc, lr
  54                 .size   __arm7tdmi_setup, . - __arm7tdmi_setup
  55
  56                 __INITDATA
  57
  58 /*
  59  * Purpose : Function pointers used to access above functions - all calls
  60  *           come through these
  61  */
  62                 .type   arm7tdmi_processor_functions, #object
  63 ENTRY(arm7tdmi_processor_functions)
  64                 .word   v4t_late_abort
  65                 .word   legacy_pabort
  66                 .word   cpu_arm7tdmi_proc_init
  67                 .word   cpu_arm7tdmi_proc_fin
  68                 .word   cpu_arm7tdmi_reset
  69                 .word   cpu_arm7tdmi_do_idle
  70                 .word   cpu_arm7tdmi_dcache_clean_area
  71                 .word   cpu_arm7tdmi_switch_mm
  72                 .word   0               @ cpu_*_set_pte
  73                 .size   arm7tdmi_processor_functions, . - arm7tdmi_processor_functions
  74
  75                 .section ".rodata"
  76
  77                 .type   cpu_arch_name, #object
  78 cpu_arch_name:
  79                 .asciz  "armv4t"
  80                 .size   cpu_arch_name, . - cpu_arch_name
  81
  82                 .type   cpu_elf_name, #object
  83 cpu_elf_name:
  84                 .asciz  "v4"
  85                 .size   cpu_elf_name, . - cpu_elf_name
  86
  87                 .type   cpu_arm7tdmi_name, #object
  88 cpu_arm7tdmi_name:
  89                 .asciz  "ARM7TDMI"
  90                 .size   cpu_arm7tdmi_name, . - cpu_arm7tdmi_name
  91
  92                 .type   cpu_triscenda7_name, #object
  93 cpu_triscenda7_name:
  94                 .asciz  "Triscend-A7x"
  95                 .size   cpu_triscenda7_name, . - cpu_triscenda7_name
  96
  97                 .type   cpu_at91_name, #object
  98 cpu_at91_name:
  99                 .asciz  "Atmel-AT91M40xxx"
 100                 .size   cpu_at91_name, . - cpu_at91_name
 101
 102                 .type   cpu_s3c3410_name, #object
 103 cpu_s3c3410_name:
 104                 .asciz  "Samsung-S3C3410"
 105                 .size   cpu_s3c3410_name, . - cpu_s3c3410_name
 106
 107                 .type   cpu_s3c44b0x_name, #object
 108 cpu_s3c44b0x_name:
 109                 .asciz  "Samsung-S3C44B0x"
 110                 .size   cpu_s3c44b0x_name, . - cpu_s3c44b0x_name
 111
 112                 .type   cpu_s3c4510b, #object
 113 cpu_s3c4510b_name:
 114                 .asciz  "Samsung-S3C4510B"
 115                 .size   cpu_s3c4510b_name, . - cpu_s3c4510b_name
 116
 117                 .type   cpu_s3c4530_name, #object
 118 cpu_s3c4530_name:
 119                 .asciz  "Samsung-S3C4530"
 120                 .size   cpu_s3c4530_name, . - cpu_s3c4530_name
 121
 122                 .type   cpu_netarm_name, #object
 123 cpu_netarm_name:
 124                 .asciz  "NETARM"
 125                 .size   cpu_netarm_name, . - cpu_netarm_name
 126
 127                 .align
 128
 129                 .section ".proc.info.init", #alloc, #execinstr
 130
 131                 .type   __arm7tdmi_proc_info, #object
 132 __arm7tdmi_proc_info:
 133                 .long   0x41007700
 134                 .long   0xfff8ff00
 135                 .long   0
 136                 .long   0
 137                 b       __arm7tdmi_setup
 138                 .long   cpu_arch_name
 139                 .long   cpu_elf_name
 140                 .long   HWCAP_SWP | HWCAP_26BIT
 141                 .long   cpu_arm7tdmi_name
 142                 .long   arm7tdmi_processor_functions
 143                 .long   0
 144                 .long   0
 145                 .long   v4_cache_fns
 146                 .size   __arm7tdmi_proc_info, . - __arm7dmi_proc_info
 147
 148                 .type   __triscenda7_proc_info, #object
 149 __triscenda7_proc_info:
 150                 .long   0x0001d2ff
 151                 .long   0x0001ffff
 152                 .long   0
 153                 .long   0
 154                 b       __arm7tdmi_setup
 155                 .long   cpu_arch_name
 156                 .long   cpu_elf_name
 157                 .long   HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
 158                 .long   cpu_triscenda7_name
 159                 .long   arm7tdmi_processor_functions
 160                 .long   0
 161                 .long   0
 162                 .long   v4_cache_fns
 163                 .size   __triscenda7_proc_info, . - __triscenda7_proc_info
 164
 165                 .type   __at91_proc_info, #object
 166 __at91_proc_info:
 167                 .long   0x14000040
 168                 .long   0xfff000e0
 169                 .long   0
 170                 .long   0
 171                 b       __arm7tdmi_setup
 172                 .long   cpu_arch_name
 173                 .long   cpu_elf_name
 174                 .long   HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
 175                 .long   cpu_at91_name
 176                 .long   arm7tdmi_processor_functions
 177                 .long   0
 178                 .long   0
 179                 .long   v4_cache_fns
 180                 .size   __at91_proc_info, . - __at91_proc_info
 181
 182                 .type   __s3c4510b_proc_info, #object
 183 __s3c4510b_proc_info:
 184                 .long   0x36365000
 185                 .long   0xfffff000
 186                 .long   0
 187                 .long   0
 188                 b       __arm7tdmi_setup
 189                 .long   cpu_arch_name
 190                 .long   cpu_elf_name
 191                 .long   HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
 192                 .long   cpu_s3c4510b_name
 193                 .long   arm7tdmi_processor_functions
 194                 .long   0
 195                 .long   0
 196                 .long   v4_cache_fns
 197                 .size   __s3c4510b_proc_info, . - __s3c4510b_proc_info
 198
 199                 .type   __s3c4530_proc_info, #object
 200 __s3c4530_proc_info:
 201                 .long   0x4c000000
 202                 .long   0xfff000e0
 203                 .long   0
 204                 .long   0
 205                 b       __arm7tdmi_setup
 206                 .long   cpu_arch_name
 207                 .long   cpu_elf_name
 208                 .long   HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
 209                 .long   cpu_s3c4530_name
 210                 .long   arm7tdmi_processor_functions
 211                 .long   0
 212                 .long   0
 213                 .long   v4_cache_fns
 214                 .size   __s3c4530_proc_info, . - __s3c4530_proc_info
 215
 216                 .type   __s3c3410_proc_info, #object
 217 __s3c3410_proc_info:
 218                 .long   0x34100000
 219                 .long   0xffff0000
 220                 .long   0
 221                 .long   0
 222                 b       __arm7tdmi_setup
 223                 .long   cpu_arch_name
 224                 .long   cpu_elf_name
 225                 .long   HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
 226                 .long   cpu_s3c3410_name
 227                 .long   arm7tdmi_processor_functions
 228                 .long   0
 229                 .long   0
 230                 .long   v4_cache_fns
 231                 .size   __s3c3410_proc_info, . - __s3c3410_proc_info
 232
 233                 .type   __s3c44b0x_proc_info, #object
 234 __s3c44b0x_proc_info:
 235                 .long   0x44b00000
 236                 .long   0xffff0000
 237                 .long   0
 238                 .long   0
 239                 b       __arm7tdmi_setup
 240                 .long   cpu_arch_name
 241                 .long   cpu_elf_name
 242                 .long   HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
 243                 .long   cpu_s3c44b0x_name
 244                 .long   arm7tdmi_processor_functions
 245                 .long   0
 246                 .long   0
 247                 .long   v4_cache_fns
 248                 .size   __s3c44b0x_proc_info, . - __s3c44b0x_proc_info