include/asm-arm/arch-h720x/memory.h

   1 /*
   2  * linux/include/asm-arm/arch-h720x/memory.h
   3  *
   4  * Copyright (c) 2000 Jungjun Kim
   5  *
   6  */
   7 #ifndef __ASM_ARCH_MEMORY_H
   8 #define __ASM_ARCH_MEMORY_H
   9
  10 /*
  11  * Page offset:
  12  *    ( 0xc0000000UL )
  13  */
  14 #define PHYS_OFFSET     UL(0x40000000)
  15
  16 /*
  17  * Virtual view <-> DMA view memory address translations
  18  * virt_to_bus: Used to translate the virtual address to an
  19  *              address suitable to be passed to set_dma_addr
  20  * bus_to_virt: Used to convert an address for DMA operations
  21  *              to an address that the kernel can use.
  22  *
  23  * There is something to do here later !, Mar 2000, Jungjun Kim
  24  */
  25
  26 #define __virt_to_bus__is_a_macro
  27 #define __virt_to_bus(x)        __virt_to_phys(x)
  28 #define __bus_to_virt__is_a_macro
  29 #define __bus_to_virt(x)        __phys_to_virt(x)
  30
  31 #endif