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