memory.h 1.3 KB

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  1. /*
  2. * arch/arm/mach-at91/include/mach/memory.h
  3. *
  4. * Copyright (C) 2004 SAN People
  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. #include <mach/hardware.h>
  23. #define PHYS_OFFSET (AT91_SDRAM_BASE)
  24. /*
  25. * Virtual view <-> DMA view memory address translations
  26. * virt_to_bus: Used to translate the virtual address to an
  27. * address suitable to be passed to set_dma_addr
  28. * bus_to_virt: Used to convert an address for DMA operations
  29. * to an address that the kernel can use.
  30. */
  31. #define __virt_to_bus(x) __virt_to_phys(x)
  32. #define __bus_to_virt(x) __phys_to_virt(x)
  33. #endif