include/asm-arm/arch-sa1100/mtd-xip.h

   1 /*
   2  * MTD primitives for XIP support. Architecture specific functions
   3  *
   4  * Do not include this file directly. It's included from linux/mtd/xip.h
   5  *
   6  * Author:      Nicolas Pitre
   7  * Created:     Nov 2, 2004
   8  * Copyright:   (C) 2004 MontaVista Software, Inc.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14  * $Id: xip.h,v 1.2 2004/12/01 15:49:10 nico Exp $
  15  */
  16
  17 #ifndef __ARCH_SA1100_MTD_XIP_H__
  18 #define __ARCH_SA1100_MTD_XIP_H__
  19
  20 #define xip_irqpending()        (ICIP & ICMR)
  21
  22 /* we sample OSCR and convert desired delta to usec (1/4 ~= 1000000/3686400) */
  23 #define xip_currtime()          (OSCR)
  24 #define xip_elapsed_since(x)    (signed)((OSCR - (x)) / 4)
  25
  26 #endif /* __ARCH_SA1100_MTD_XIP_H__ */