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linux-vybrid_public
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linux-vybrid_pu...
/
arch
/
m68k
/
include
/
asm
/
coldfire.h

coldfire.h 1.5 KB
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  1. /****************************************************************************/
    2. 

  2. 

  3. /*
    4. 

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

  5.  *
    6. 

  6.  *	(C) Copyright 1999-2006, 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. 

  16. /*
    17. 

  17.  *	Define master clock frequency. This is essentially done at config
    18. 

  18.  *	time now. No point enumerating dozens of possible clock options
    19. 

  19.  *	here. Also the peripheral clock (bus clock) divide ratio is set
    20. 

  20.  *	at config time too.
    21. 

  21.  */
    22. 

  22. #ifdef CONFIG_CLOCK_SET
    23. 

  23. #define	MCF_CLK		CONFIG_CLOCK_FREQ
    24. 

  24. #define	MCF_BUSCLK	(CONFIG_CLOCK_FREQ / CONFIG_CLOCK_DIV)
    25. 

  25. #else
    26. 

  26. #error "Don't know what your ColdFire CPU clock frequency is??"
    27. 

  27. #endif
    28. 

  28. 

  29. /*
    30. 

  30.  *	Define the processor support peripherals base address.
    31. 

  31.  *	This is generally setup by the boards start up code.
    32. 

  32.  */
    33. 

  33. #define	MCF_MBAR	0x10000000
    34. 

  34. #define	MCF_MBAR2	0x80000000
    35. 

  35. #if defined(CONFIG_M520x)
    36. 

  36. #define	MCF_IPSBAR	0xFC000000
    37. 

  37. #else
    38. 

  38. #define	MCF_IPSBAR	0x40000000
    39. 

  39. #endif
    40. 

  40. 

  41. #if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
    42. 

  42.     defined(CONFIG_M520x)
    43. 

  43. #undef MCF_MBAR
    44. 

  44. #define	MCF_MBAR	MCF_IPSBAR
    45. 

  45. #elif defined(CONFIG_M532x)
    46. 

  46. #undef MCF_MBAR
    47. 

  47. #define MCF_MBAR	0x00000000
    48. 

  48. #endif
    49. 

  49. 

  50. /****************************************************************************/
    51. 

  51. #endif	/* coldfire_h */
    52.