memory.h 1.2 KB

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  1. /*
  2. * arch/arm/mach-sa1100/include/mach/memory.h
  3. *
  4. * Copyright (C) 1999-2000 Nicolas Pitre <nico@fluxnic.net>
  5. */
  6. #ifndef __ASM_ARCH_MEMORY_H
  7. #define __ASM_ARCH_MEMORY_H
  8. #include <asm/sizes.h>
  9. /*
  10. * Physical DRAM offset is 0xc0000000 on the SA1100
  11. */
  12. #define PLAT_PHYS_OFFSET UL(0xc0000000)
  13. #ifdef CONFIG_SA1111
  14. #define ARM_DMA_ZONE_SIZE SZ_1M
  15. #endif
  16. /*
  17. * Because of the wide memory address space between physical RAM banks on the
  18. * SA1100, it's much convenient to use Linux's SparseMEM support to implement
  19. * our memory map representation. Assuming all memory nodes have equal access
  20. * characteristics, we then have generic discontiguous memory support.
  21. *
  22. * The sparsemem banks are matched with the physical memory bank addresses
  23. * which are incidentally the same as virtual addresses.
  24. *
  25. * node 0: 0xc0000000 - 0xc7ffffff
  26. * node 1: 0xc8000000 - 0xcfffffff
  27. * node 2: 0xd0000000 - 0xd7ffffff
  28. * node 3: 0xd8000000 - 0xdfffffff
  29. */
  30. #define MAX_PHYSMEM_BITS 32
  31. #define SECTION_SIZE_BITS 27
  32. /*
  33. * Cache flushing area - SA1100 zero bank
  34. */
  35. #define FLUSH_BASE_PHYS 0xe0000000
  36. #define FLUSH_BASE 0xf5000000
  37. #define FLUSH_BASE_MINICACHE 0xf5100000
  38. #endif