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 42