proc-arm7tdmi.S 5.7 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/elf.h>
  16. #include <asm/pgtable-hwdef.h>
  17. #include <asm/pgtable.h>
  18. #include <asm/ptrace.h>
  19. .text
  20. /*
  21. * cpu_arm7tdmi_proc_init()
  22. * cpu_arm7tdmi_do_idle()
  23. * cpu_arm7tdmi_dcache_clean_area()
  24. * cpu_arm7tdmi_switch_mm()
  25. *
  26. * These are not required.
  27. */
  28. ENTRY(cpu_arm7tdmi_proc_init)
  29. ENTRY(cpu_arm7tdmi_do_idle)
  30. ENTRY(cpu_arm7tdmi_dcache_clean_area)
  31. ENTRY(cpu_arm7tdmi_switch_mm)
  32. mov pc, lr
  33. /*
  34. * cpu_arm7tdmi_proc_fin()
  35. */
  36. ENTRY(cpu_arm7tdmi_proc_fin)
  37. mov r0, #PSR_F_BIT | PSR_I_BIT | SVC_MODE
  38. msr cpsr_c, r0
  39. mov pc, lr
  40. /*
  41. * Function: cpu_arm7tdmi_reset(loc)
  42. * Params : loc(r0) address to jump to
  43. * Purpose : Sets up everything for a reset and jump to the location for soft reset.
  44. */
  45. ENTRY(cpu_arm7tdmi_reset)
  46. mov pc, r0
  47. __INIT
  48. .type __arm7tdmi_setup, #function
  49. __arm7tdmi_setup:
  50. mov pc, lr
  51. .size __arm7tdmi_setup, . - __arm7tdmi_setup
  52. __INITDATA
  53. /*
  54. * Purpose : Function pointers used to access above functions - all calls
  55. * come through these
  56. */
  57. .type arm7tdmi_processor_functions, #object
  58. ENTRY(arm7tdmi_processor_functions)
  59. .word v4t_late_abort
  60. .word cpu_arm7tdmi_proc_init
  61. .word cpu_arm7tdmi_proc_fin
  62. .word cpu_arm7tdmi_reset
  63. .word cpu_arm7tdmi_do_idle
  64. .word cpu_arm7tdmi_dcache_clean_area
  65. .word cpu_arm7tdmi_switch_mm
  66. .word 0 @ cpu_*_set_pte
  67. .size arm7tdmi_processor_functions, . - arm7tdmi_processor_functions
  68. .section ".rodata"
  69. .type cpu_arch_name, #object
  70. cpu_arch_name:
  71. .asciz "armv4t"
  72. .size cpu_arch_name, . - cpu_arch_name
  73. .type cpu_elf_name, #object
  74. cpu_elf_name:
  75. .asciz "v4"
  76. .size cpu_elf_name, . - cpu_elf_name
  77. .type cpu_arm7tdmi_name, #object
  78. cpu_arm7tdmi_name:
  79. .asciz "ARM7TDMI"
  80. .size cpu_arm7tdmi_name, . - cpu_arm7tdmi_name
  81. .type cpu_triscenda7_name, #object
  82. cpu_triscenda7_name:
  83. .asciz "Triscend-A7x"
  84. .size cpu_triscenda7_name, . - cpu_triscenda7_name
  85. .type cpu_at91_name, #object
  86. cpu_at91_name:
  87. .asciz "Atmel-AT91M40xxx"
  88. .size cpu_at91_name, . - cpu_at91_name
  89. .type cpu_s3c3410_name, #object
  90. cpu_s3c3410_name:
  91. .asciz "Samsung-S3C3410"
  92. .size cpu_s3c3410_name, . - cpu_s3c3410_name
  93. .type cpu_s3c44b0x_name, #object
  94. cpu_s3c44b0x_name:
  95. .asciz "Samsung-S3C44B0x"
  96. .size cpu_s3c44b0x_name, . - cpu_s3c44b0x_name
  97. .type cpu_s3c4510b, #object
  98. cpu_s3c4510b_name:
  99. .asciz "Samsung-S3C4510B"
  100. .size cpu_s3c4510b_name, . - cpu_s3c4510b_name
  101. .type cpu_s3c4530_name, #object
  102. cpu_s3c4530_name:
  103. .asciz "Samsung-S3C4530"
  104. .size cpu_s3c4530_name, . - cpu_s3c4530_name
  105. .type cpu_netarm_name, #object
  106. cpu_netarm_name:
  107. .asciz "NETARM"
  108. .size cpu_netarm_name, . - cpu_netarm_name
  109. .align
  110. .section ".proc.info.init", #alloc, #execinstr
  111. .type __arm7tdmi_proc_info, #object
  112. __arm7tdmi_proc_info:
  113. .long 0x41007700
  114. .long 0xfff8ff00
  115. .long 0
  116. .long 0
  117. b __arm7tdmi_setup
  118. .long cpu_arch_name
  119. .long cpu_elf_name
  120. .long HWCAP_SWP | HWCAP_26BIT
  121. .long cpu_arm7tdmi_name
  122. .long arm7tdmi_processor_functions
  123. .long 0
  124. .long 0
  125. .long v4_cache_fns
  126. .size __arm7tdmi_proc_info, . - __arm7dmi_proc_info
  127. .type __triscenda7_proc_info, #object
  128. __triscenda7_proc_info:
  129. .long 0x0001d2ff
  130. .long 0x0001ffff
  131. .long 0
  132. .long 0
  133. b __arm7tdmi_setup
  134. .long cpu_arch_name
  135. .long cpu_elf_name
  136. .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
  137. .long cpu_triscenda7_name
  138. .long arm7tdmi_processor_functions
  139. .long 0
  140. .long 0
  141. .long v4_cache_fns
  142. .size __triscenda7_proc_info, . - __triscenda7_proc_info
  143. .type __at91_proc_info, #object
  144. __at91_proc_info:
  145. .long 0x14000040
  146. .long 0xfff000e0
  147. .long 0
  148. .long 0
  149. b __arm7tdmi_setup
  150. .long cpu_arch_name
  151. .long cpu_elf_name
  152. .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
  153. .long cpu_at91_name
  154. .long arm7tdmi_processor_functions
  155. .long 0
  156. .long 0
  157. .long v4_cache_fns
  158. .size __at91_proc_info, . - __at91_proc_info
  159. .type __s3c4510b_proc_info, #object
  160. __s3c4510b_proc_info:
  161. .long 0x36365000
  162. .long 0xfffff000
  163. .long 0
  164. .long 0
  165. b __arm7tdmi_setup
  166. .long cpu_arch_name
  167. .long cpu_elf_name
  168. .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
  169. .long cpu_s3c4510b_name
  170. .long arm7tdmi_processor_functions
  171. .long 0
  172. .long 0
  173. .long v4_cache_fns
  174. .size __s3c4510b_proc_info, . - __s3c4510b_proc_info
  175. .type __s3c4530_proc_info, #object
  176. __s3c4530_proc_info:
  177. .long 0x4c000000
  178. .long 0xfff000e0
  179. .long 0
  180. .long 0
  181. b __arm7tdmi_setup
  182. .long cpu_arch_name
  183. .long cpu_elf_name
  184. .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
  185. .long cpu_s3c4530_name
  186. .long arm7tdmi_processor_functions
  187. .long 0
  188. .long 0
  189. .long v4_cache_fns
  190. .size __s3c4530_proc_info, . - __s3c4530_proc_info
  191. .type __s3c3410_proc_info, #object
  192. __s3c3410_proc_info:
  193. .long 0x34100000
  194. .long 0xffff0000
  195. .long 0
  196. .long 0
  197. b __arm7tdmi_setup
  198. .long cpu_arch_name
  199. .long cpu_elf_name
  200. .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
  201. .long cpu_s3c3410_name
  202. .long arm7tdmi_processor_functions
  203. .long 0
  204. .long 0
  205. .long v4_cache_fns
  206. .size __s3c3410_proc_info, . - __s3c3410_proc_info
  207. .type __s3c44b0x_proc_info, #object
  208. __s3c44b0x_proc_info:
  209. .long 0x44b00000
  210. .long 0xffff0000
  211. .long 0
  212. .long 0
  213. b __arm7tdmi_setup
  214. .long cpu_arch_name
  215. .long cpu_elf_name
  216. .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
  217. .long cpu_s3c44b0x_name
  218. .long arm7tdmi_processor_functions
  219. .long 0
  220. .long 0
  221. .long v4_cache_fns
  222. .size __s3c44b0x_proc_info, . - __s3c44b0x_proc_info