include/asm-avr32/addrspace.h

   1 /*
   2  * Copyright (C) 2006 Atmel Corporation
   3  *
   4  * See file CREDITS for list of people who contributed to this
   5  * project.
   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 #ifndef __ASM_AVR32_ADDRSPACE_H
  23 #define __ASM_AVR32_ADDRSPACE_H
  24
  25 /* Memory segments when segmentation is enabled */
  26 #define P0SEG           0x00000000
  27 #define P1SEG           0x80000000
  28 #define P2SEG           0xa0000000
  29 #define P3SEG           0xc0000000
  30 #define P4SEG           0xe0000000
  31
  32 /* Returns the privileged segment base of a given address */
  33 #define PXSEG(a)        (((unsigned long)(a)) & 0xe0000000)
  34
  35 /* Returns the physical address of a PnSEG (n=1,2) address */
  36 #define PHYSADDR(a)     (((unsigned long)(a)) & 0x1fffffff)
  37
  38 /*
  39  * Map an address to a certain privileged segment
  40  */
  41 #define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P1SEG))
  42 #define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P2SEG))
  43 #define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P3SEG))
  44 #define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P4SEG))
  45
  46 #endif /* __ASM_AVR32_ADDRSPACE_H */