arch/arm/mach-sa1100/include/mach/memory.h

   1 /*
   2  * arch/arm/mach-sa1100/include/mach/memory.h
   3  *
   4  * Copyright (C) 1999-2000 Nicolas Pitre <nico@fluxnic.net>
   5  */
   6
   7 #ifndef __ASM_ARCH_MEMORY_H
   8 #define __ASM_ARCH_MEMORY_H
   9
  10 #include <asm/sizes.h>
  11
  12 /*
  13  * Physical DRAM offset is 0xc0000000 on the SA1100
  14  */
  15 #define PLAT_PHYS_OFFSET        UL(0xc0000000)
  16
  17 /*
  18  * Because of the wide memory address space between physical RAM banks on the
  19  * SA1100, it's much convenient to use Linux's SparseMEM support to implement
  20  * our memory map representation.  Assuming all memory nodes have equal access
  21  * characteristics, we then have generic discontiguous memory support.
  22  *
  23  * The sparsemem banks are matched with the physical memory bank addresses
  24  * which are incidentally the same as virtual addresses.
  25  *
  26  *      node 0:  0xc0000000 - 0xc7ffffff
  27  *      node 1:  0xc8000000 - 0xcfffffff
  28  *      node 2:  0xd0000000 - 0xd7ffffff
  29  *      node 3:  0xd8000000 - 0xdfffffff
  30  */
  31 #define MAX_PHYSMEM_BITS        32
  32 #define SECTION_SIZE_BITS       27
  33
  34 /*
  35  * Cache flushing area - SA1100 zero bank
  36  */
  37 #define FLUSH_BASE_PHYS         0xe0000000
  38 #define FLUSH_BASE              0xf5000000
  39 #define FLUSH_BASE_MINICACHE    0xf5100000
  40
  41 #endif