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kernel/linux-rt-4.4.41/arch/m68k/include/asm/coldfire.h 1.58 KB
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  /****************************************************************************/
  
  /*
   *	coldfire.h -- Motorola ColdFire CPU sepecific defines
   *
   *	(C) Copyright 1999-2006, Greg Ungerer (gerg@snapgear.com)
   *	(C) Copyright 2000, Lineo (www.lineo.com)
   */
  
  /****************************************************************************/
  #ifndef	coldfire_h
  #define	coldfire_h
  /****************************************************************************/
  
  
  /*
   *	Define master clock frequency. This is done at config time now.
   *	No point enumerating dozens of possible clock options here. And
   *	in any case new boards come along from time to time that have yet
   *	another different clocking frequency.
   */
  #ifdef CONFIG_CLOCK_FREQ
  #define	MCF_CLK		CONFIG_CLOCK_FREQ
  #else
  #error "Don't know what your ColdFire CPU clock frequency is??"
  #endif
  
  /*
   *	Define the processor internal peripherals base address.
   *
   *	The majority of ColdFire parts use an MBAR register to set
   *	the base address. Some have an IPSBAR register instead, and it
   *	has slightly different rules on its size and alignment. Some
   *	parts have fixed addresses and the internal peripherals cannot
   *	be relocated in the CPU address space.
   *
   *	The value of MBAR or IPSBAR is config time selectable, we no
   *	longer hard define it here. No MBAR or IPSBAR will be defined if
   *	this part has a fixed peripheral address map.
   */
  #ifdef CONFIG_MBAR
  #define	MCF_MBAR	CONFIG_MBAR
  #endif
  #ifdef CONFIG_IPSBAR
  #define	MCF_IPSBAR	CONFIG_IPSBAR
  #endif
  
  /****************************************************************************/
  #endif	/* coldfire_h */