arch/arm/include/asm/arch-s3c64xx/hardware.h

   1 /*
   2  * Originates from Samsung's u-boot 1.1.6 port to S3C6400 / SMDK6400
   3  *
   4  * (C) Copyright 2008
   5  * Guennadi Liakhovetki, DENX Software Engineering, <lg@denx.de>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22
  23 #ifndef _ARCH_HARDWARE_H_
  24 #define _ARCH_HARDWARE_H_
  25
  26 #include <asm/sizes.h>
  27
  28 #ifndef __ASSEMBLY__
  29 #define UData(Data)     ((unsigned long) (Data))
  30
  31 #define __REG(x)        (*(vu_long *)(x))
  32 #define __REGl(x)       (*(vu_long *)(x))
  33 #define __REGw(x)       (*(vu_short *)(x))
  34 #define __REGb(x)       (*(vu_char *)(x))
  35 #define __REG2(x, y)    (*(vu_long *)((x) + (y)))
  36 #else
  37 #define UData(Data)     (Data)
  38
  39 #define __REG(x)        (x)
  40 #define __REGl(x)       (x)
  41 #define __REGw(x)       (x)
  42 #define __REGb(x)       (x)
  43 #define __REG2(x, y)    ((x) + (y))
  44 #endif
  45
  46 #define Fld(Size, Shft) (((Size) << 16) + (Shft))
  47
  48 #define FSize(Field)    ((Field) >> 16)
  49 #define FShft(Field)    ((Field) & 0x0000FFFF)
  50 #define FMsk(Field)     (((UData (1) << FSize (Field)) - 1) << FShft (Field))
  51 #define FAlnMsk(Field)  ((UData (1) << FSize (Field)) - 1)
  52 #define F1stBit(Field)  (UData (1) << FShft (Field))
  53
  54 #define FClrBit(Data, Bit)      (Data = (Data & ~(Bit)))
  55 #define FClrFld(Data, Field)    (Data = (Data & ~FMsk(Field)))
  56
  57 #define FInsrt(Value, Field) \
  58                         (UData (Value) << FShft (Field))
  59
  60 #define FExtr(Data, Field) \
  61                         ((UData (Data) >> FShft (Field)) & FAlnMsk (Field))
  62
  63 #endif /* _ARCH_HARDWARE_H_ */