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u-boot
/
arch
/
arm
/
include
/
asm
/
assembler.h

assembler.h 2.0 KB
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  1. /*
    2. 

  2.  *  arch/arm/include/asm/assembler.h
    3. 

  3.  *
    4. 

  4.  *  Copyright (C) 1996-2000 Russell King
    5. 

  5.  *
    6. 

  6.  * This program is free software; you can redistribute it and/or modify
    7. 

  7.  * it under the terms of the GNU General Public License version 2 as
    8. 

  8.  * published by the Free Software Foundation.
    9. 

  9.  *
    10. 

  10.  *  This file contains arm architecture specific defines
    11. 

  11.  *  for the different processors.
    12. 

  12.  *
    13. 

  13.  *  Do not include any C declarations in this file - it is included by
    14. 

  14.  *  assembler source.
    15. 

  15.  */
    16. 

  16. 

  17. #include <config.h>
    18. 

  18. 

  19. /*
    20. 

  20.  * Endian independent macros for shifting bytes within registers.
    21. 

  21.  */
    22. 

  22. #ifndef __ARMEB__
    23. 

  23. #define lspull		lsr
    24. 

  24. #define lspush		lsl
    25. 

  25. #define get_byte_0	lsl #0
    26. 

  26. #define get_byte_1	lsr #8
    27. 

  27. #define get_byte_2	lsr #16
    28. 

  28. #define get_byte_3	lsr #24
    29. 

  29. #define put_byte_0	lsl #0
    30. 

  30. #define put_byte_1	lsl #8
    31. 

  31. #define put_byte_2	lsl #16
    32. 

  32. #define put_byte_3	lsl #24
    33. 

  33. #else
    34. 

  34. #define lspull		lsl
    35. 

  35. #define lspush		lsr
    36. 

  36. #define get_byte_0	lsr #24
    37. 

  37. #define get_byte_1	lsr #16
    38. 

  38. #define get_byte_2	lsr #8
    39. 

  39. #define get_byte_3      lsl #0
    40. 

  40. #define put_byte_0	lsl #24
    41. 

  41. #define put_byte_1	lsl #16
    42. 

  42. #define put_byte_2	lsl #8
    43. 

  43. #define put_byte_3      lsl #0
    44. 

  44. #endif
    45. 

  45. 

  46. /*
    47. 

  47.  * Data preload for architectures that support it
    48. 

  48.  */
    49. 

  49. #if defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) || \
    50. 

  50. 	defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || \
    51. 

  51. 	defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || \
    52. 

  52. 	defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_7A__) || \
    53. 

  53. 	defined(__ARM_ARCH_7R__)
    54. 

  54. #define PLD(code...)	code
    55. 

  55. #else
    56. 

  56. #define PLD(code...)
    57. 

  57. #endif
    58. 

  58. 

  59. 	.irp	c,,eq,ne,cs,cc,mi,pl,vs,vc,hi,ls,ge,lt,gt,le,hs,lo
    60. 

  60. 	.macro	ret\c, reg
    61. 

  61. #if defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__)
    62. 

  62. 	mov\c	pc, \reg
    63. 

  63. #else
    64. 

  64. 	.ifeqs	"\reg", "lr"
    65. 

  65. 	bx\c	\reg
    66. 

  66. 	.else
    67. 

  67. 	mov\c	pc, \reg
    68. 

  68. 	.endif
    69. 

  69. #endif
    70. 

  70. 	.endm
    71. 

  71. 	.endr
    72. 

  72. 

  73. /*
    74. 

  74.  * Cache aligned, used for optimized memcpy/memset
    75. 

  75.  * In the kernel this is only enabled for Feroceon CPU's...
    76. 

  76.  * We disable it especially for Thumb builds since those instructions
    77. 

  77.  * are not made in a Thumb ready way...
    78. 

  78.  */
    79. 

  79. #ifdef CONFIG_SYS_THUMB_BUILD
    80. 

  80. #define CALGN(code...)
    81. 

  81. #else
    82. 

  82. #define CALGN(code...) code
    83. 

  83. #endif
    84.