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asm-m68knommu
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coldfire.h

coldfire.h 2.4 KB
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  1. /****************************************************************************/
    2. 

  2. 

  3. /*
    4. 

  4.  *	coldfire.h -- Motorola ColdFire CPU sepecific defines
    5. 

  5.  *
    6. 

  6.  *	(C) Copyright 1999-2002, Greg Ungerer (gerg@snapgear.com)
    7. 

  7.  *	(C) Copyright 2000, Lineo (www.lineo.com)
    8. 

  8.  */
    9. 

  9. 

  10. /****************************************************************************/
    11. 

  11. #ifndef	coldfire_h
    12. 

  12. #define	coldfire_h
    13. 

  13. /****************************************************************************/
    14. 

  14. 

  15. #include <linux/config.h>
    16. 

  16. 

  17. /*
    18. 

  18.  *	Define the processor support peripherals base address.
    19. 

  19.  *	This is generally setup by the boards start up code.
    20. 

  20.  */
    21. 

  21. #define	MCF_MBAR	0x10000000
    22. 

  22. #define	MCF_MBAR2	0x80000000
    23. 

  23. #define	MCF_IPSBAR	0x40000000
    24. 

  24. 

  25. #if defined(CONFIG_M527x) || defined(CONFIG_M528x)
    26. 

  26. #undef MCF_MBAR
    27. 

  27. #define	MCF_MBAR	MCF_IPSBAR
    28. 

  28. #endif
    29. 

  29. 

  30. /*
    31. 

  31.  *	Define master clock frequency.
    32. 

  32.  */
    33. 

  33. #if defined(CONFIG_CLOCK_11MHz)
    34. 

  34. #define	MCF_CLK		11289600
    35. 

  35. #elif defined(CONFIG_CLOCK_16MHz)
    36. 

  36. #define	MCF_CLK		16000000
    37. 

  37. #elif defined(CONFIG_CLOCK_20MHz)
    38. 

  38. #define	MCF_CLK		20000000
    39. 

  39. #elif defined(CONFIG_CLOCK_24MHz)
    40. 

  40. #define	MCF_CLK		24000000
    41. 

  41. #elif defined(CONFIG_CLOCK_25MHz)
    42. 

  42. #define	MCF_CLK		25000000
    43. 

  43. #elif defined(CONFIG_CLOCK_33MHz)
    44. 

  44. #define	MCF_CLK		33000000
    45. 

  45. #elif defined(CONFIG_CLOCK_40MHz)
    46. 

  46. #define	MCF_CLK		40000000
    47. 

  47. #elif defined(CONFIG_CLOCK_45MHz)
    48. 

  48. #define	MCF_CLK		45000000
    49. 

  49. #elif defined(CONFIG_CLOCK_48MHz)
    50. 

  50. #define	MCF_CLK		48000000
    51. 

  51. #elif defined(CONFIG_CLOCK_50MHz)
    52. 

  52. #define	MCF_CLK		50000000
    53. 

  53. #elif defined(CONFIG_CLOCK_54MHz)
    54. 

  54. #define	MCF_CLK		54000000
    55. 

  55. #elif defined(CONFIG_CLOCK_60MHz)
    56. 

  56. #define	MCF_CLK		60000000
    57. 

  57. #elif defined(CONFIG_CLOCK_64MHz)
    58. 

  58. #define	MCF_CLK		64000000
    59. 

  59. #elif defined(CONFIG_CLOCK_66MHz)
    60. 

  60. #define	MCF_CLK		66000000
    61. 

  61. #elif defined(CONFIG_CLOCK_70MHz)
    62. 

  62. #define	MCF_CLK		70000000
    63. 

  63. #elif defined(CONFIG_CLOCK_100MHz)
    64. 

  64. #define	MCF_CLK		100000000
    65. 

  65. #elif defined(CONFIG_CLOCK_140MHz)
    66. 

  66. #define	MCF_CLK		140000000
    67. 

  67. #elif defined(CONFIG_CLOCK_150MHz)
    68. 

  68. #define	MCF_CLK		150000000
    69. 

  69. #elif defined(CONFIG_CLOCK_166MHz)
    70. 

  70. #define	MCF_CLK		166000000
    71. 

  71. #else
    72. 

  72. #error "Don't know what your ColdFire CPU clock frequency is??"
    73. 

  73. #endif
    74. 

  74. 

  75. /*
    76. 

  76.  *	One some ColdFire family members the bus clock (used by internal
    77. 

  77.  *	peripherals) is not the same as the CPU clock.
    78. 

  78.  */
    79. 

  79. #if defined(CONFIG_M5249) || defined(CONFIG_M527x)
    80. 

  80. #define	MCF_BUSCLK	(MCF_CLK / 2)
    81. 

  81. #else
    82. 

  82. #define	MCF_BUSCLK	MCF_CLK
    83. 

  83. #endif
    84. 

  84. 

  85. /****************************************************************************/
    86. 

  86. #endif	/* coldfire_h */
    87.