include/asm-arm/arch-ks8695/memory.h

   1 /*
   2  *  linux/include/asm-arm/arch-ks8695/memory.h
   3  *
   4  *  Copyright (C) 2002 Micrel Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 #ifndef __ASM_ARCH_MEMORY_H
  21 #define __ASM_ARCH_MEMORY_H
  22
  23 #include <asm/arch/hardware.h>
  24 #include <asm/arch/ks8695-regs.h>
  25 #include <asm/arch/ks8695-pci.h>
  26
  27 /*
  28  * All the current machines based on this I know of have RAM based at
  29  * address 0. Lets deal with any that don't if/when we hit them.
  30  */
  31 #define PHYS_OFFSET     UL(0x00000000)
  32
  33 /*
  34  * Virtual view <-> DMA view memory address translations
  35  * virt_to_bus: Used to translate the virtual address to an
  36  *              address suitable to be passed to set_dma_addr
  37  * bus_to_virt: Used to convert an address for DMA operations
  38  *              to an address that the kernel can use.
  39  * On KS8695, physical and bus address are same for dram
  40  */
  41 #define __virt_to_bus(x)        ((x) - PAGE_OFFSET  + KS8695P_PCI_MEM_BASE)
  42 #define __bus_to_virt(x)        ((x) - KS8695P_PCI_MEM_BASE + PAGE_OFFSET)
  43
  44 #endif /* __ASM_ARCH_MEMORY_H */