proc-arm7tdmi.S 3.1 KB

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  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. #include "proc-macros.S"
  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. * cpu_arm7tdmi_proc_fin()
  36. */
  37. ENTRY(cpu_arm7tdmi_proc_fin)
  38. mov pc, lr
  39. /*
  40. * Function: cpu_arm7tdmi_reset(loc)
  41. * Params : loc(r0) address to jump to
  42. * Purpose : Sets up everything for a reset and jump to the location for soft reset.
  43. */
  44. .pushsection .idmap.text, "ax"
  45. ENTRY(cpu_arm7tdmi_reset)
  46. mov pc, r0
  47. ENDPROC(cpu_arm7tdmi_reset)
  48. .popsection
  49. __CPUINIT
  50. .type __arm7tdmi_setup, #function
  51. __arm7tdmi_setup:
  52. mov pc, lr
  53. .size __arm7tdmi_setup, . - __arm7tdmi_setup
  54. __INITDATA
  55. @ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
  56. define_processor_functions arm7tdmi, dabort=v4t_late_abort, pabort=legacy_pabort, nommu=1
  57. .section ".rodata"
  58. string cpu_arch_name, "armv4t"
  59. string cpu_elf_name, "v4"
  60. string cpu_arm7tdmi_name, "ARM7TDMI"
  61. string cpu_triscenda7_name, "Triscend-A7x"
  62. string cpu_at91_name, "Atmel-AT91M40xxx"
  63. string cpu_s3c3410_name, "Samsung-S3C3410"
  64. string cpu_s3c44b0x_name, "Samsung-S3C44B0x"
  65. string cpu_s3c4510b_name, "Samsung-S3C4510B"
  66. string cpu_s3c4530_name, "Samsung-S3C4530"
  67. string cpu_netarm_name, "NETARM"
  68. .align
  69. .section ".proc.info.init", #alloc, #execinstr
  70. .macro arm7tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, \
  71. extra_hwcaps=0
  72. .type __\name\()_proc_info, #object
  73. __\name\()_proc_info:
  74. .long \cpu_val
  75. .long \cpu_mask
  76. .long 0
  77. .long 0
  78. b __arm7tdmi_setup
  79. .long cpu_arch_name
  80. .long cpu_elf_name
  81. .long HWCAP_SWP | HWCAP_26BIT | ( \extra_hwcaps )
  82. .long \cpu_name
  83. .long arm7tdmi_processor_functions
  84. .long 0
  85. .long 0
  86. .long v4_cache_fns
  87. .size __\name\()_proc_info, . - __\name\()_proc_info
  88. .endm
  89. arm7tdmi_proc_info arm7tdmi, 0x41007700, 0xfff8ff00, \
  90. cpu_arm7tdmi_name
  91. arm7tdmi_proc_info triscenda7, 0x0001d2ff, 0x0001ffff, \
  92. cpu_triscenda7_name, extra_hwcaps=HWCAP_THUMB
  93. arm7tdmi_proc_info at91, 0x14000040, 0xfff000e0, \
  94. cpu_at91_name, extra_hwcaps=HWCAP_THUMB
  95. arm7tdmi_proc_info s3c4510b, 0x36365000, 0xfffff000, \
  96. cpu_s3c4510b_name, extra_hwcaps=HWCAP_THUMB
  97. arm7tdmi_proc_info s3c4530, 0x4c000000, 0xfff000e0, \
  98. cpu_s3c4530_name, extra_hwcaps=HWCAP_THUMB
  99. arm7tdmi_proc_info s3c3410, 0x34100000, 0xffff0000, \
  100. cpu_s3c3410_name, extra_hwcaps=HWCAP_THUMB
  101. arm7tdmi_proc_info s3c44b0x, 0x44b00000, 0xffff0000, \
  102. cpu_s3c44b0x_name, extra_hwcaps=HWCAP_THUMB