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