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 * 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. 17 * 18 * The sparsemem banks are matched with the physical memory bank addresses 19 * which are incidentally the same as virtual addresses. 20 * 21 * node 0: 0xc0000000 - 0xc7ffffff 22 * node 1: 0xc8000000 - 0xcfffffff 23 * node 2: 0xd0000000 - 0xd7ffffff 24 * node 3: 0xd8000000 - 0xdfffffff 25 */ 26 #define MAX_PHYSMEM_BITS 32 27 #define SECTION_SIZE_BITS 27 28 29 /* 30 * Cache flushing area - SA1100 zero bank 31 */ 32 #define FLUSH_BASE_PHYS 0xe0000000 33 #define FLUSH_BASE 0xf5000000 34 #define FLUSH_BASE_MINICACHE 0xf5100000 35 36 #endif 37