arch/m68k/include/asm/coldfire.h

   1 /****************************************************************************/
   2
   3 /*
   4  *      coldfire.h -- Motorola ColdFire CPU sepecific defines
   5  *
   6  *      (C) Copyright 1999-2006, Greg Ungerer (gerg@snapgear.com)
   7  *      (C) Copyright 2000, Lineo (www.lineo.com)
   8  */
   9
  10 /****************************************************************************/
  11 #ifndef coldfire_h
  12 #define coldfire_h
  13 /****************************************************************************/
  14
  15
  16 /*
  17  *      Define master clock frequency. This is done at config time now.
  18  *      No point enumerating dozens of possible clock options here. And
  19  *      in any case new boards come along from time to time that have yet
  20  *      another different clocking frequency.
  21  */
  22 #ifdef CONFIG_CLOCK_SET
  23 #define MCF_CLK         CONFIG_CLOCK_FREQ
  24 #else
  25 #error "Don't know what your ColdFire CPU clock frequency is??"
  26 #endif
  27
  28 /*
  29  *      Define the processor internal peripherals base address.
  30  *
  31  *      The majority of ColdFire parts use an MBAR register to set
  32  *      the base address. Some have an IPSBAR register instead, and it
  33  *      has slightly different rules on its size and alignment. Some
  34  *      parts have fixed addresses and the internal peripherals cannot
  35  *      be relocated in the CPU address space.
  36  *
  37  *      The value of MBAR or IPSBAR is config time selectable, we no
  38  *      longer hard define it here. No MBAR or IPSBAR will be defined if
  39  *      this part has a fixed peripheral address map.
  40  */
  41 #ifdef CONFIG_MBAR
  42 #define MCF_MBAR        CONFIG_MBAR
  43 #endif
  44 #ifdef CONFIG_IPSBAR
  45 #define MCF_IPSBAR      CONFIG_IPSBAR
  46 #endif
  47
  48 /****************************************************************************/
  49 #endif  /* coldfire_h */