memory.h 1.0 KB

12345678910111213141516171819202122232425262728293031323334353637383940
  1. /*
  2. * arch/arm/mach-rpc/include/mach/memory.h
  3. *
  4. * Copyright (C) 1996,1997,1998 Russell King.
  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 version 2 as
  8. * published by the Free Software Foundation.
  9. *
  10. * Changelog:
  11. * 20-Oct-1996 RMK Created
  12. * 31-Dec-1997 RMK Fixed definitions to reduce warnings
  13. * 11-Jan-1998 RMK Uninlined to reduce hits on cache
  14. * 08-Feb-1998 RMK Added __virt_to_bus and __bus_to_virt
  15. * 21-Mar-1999 RMK Renamed to memory.h
  16. * RMK Added TASK_SIZE and PAGE_OFFSET
  17. */
  18. #ifndef __ASM_ARCH_MEMORY_H
  19. #define __ASM_ARCH_MEMORY_H
  20. /*
  21. * Physical DRAM offset.
  22. */
  23. #define PHYS_OFFSET UL(0x10000000)
  24. /*
  25. * Cache flushing area - ROM
  26. */
  27. #define FLUSH_BASE_PHYS 0x00000000
  28. #define FLUSH_BASE 0xdf000000
  29. /*
  30. * Sparsemem support. Each section is a maximum of 64MB. The sections
  31. * are offset by 128MB and can cover 128MB, so that gives us a maximum
  32. * of 29 physmem bits.
  33. */
  34. #define MAX_PHYSMEM_BITS 29
  35. #define SECTION_SIZE_BITS 26
  36. #endif