1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * arch/arm/mach-sa1100/include/mach/memory.h 4 * 5 * Copyright (C) 1999-2000 Nicolas Pitre <nico@fluxnic.net> 6 */ 7 8 #ifndef __ASM_ARCH_MEMORY_H 9 #define __ASM_ARCH_MEMORY_H 10 11 #include <linux/sizes.h> 12 13 /* 14 * Because of the wide memory address space between physical RAM banks on the 15 * SA1100, it's much convenient to use Linux's SparseMEM support to implement 16 * our memory map representation. Assuming all memory nodes have equal access 17 * characteristics, we then have generic discontiguous memory support. 18 * 19 * The sparsemem banks are matched with the physical memory bank addresses 20 * which are incidentally the same as virtual addresses. 21 * 22 * node 0: 0xc0000000 - 0xc7ffffff 23 * node 1: 0xc8000000 - 0xcfffffff 24 * node 2: 0xd0000000 - 0xd7ffffff 25 * node 3: 0xd8000000 - 0xdfffffff 26 */ 27 #define MAX_PHYSMEM_BITS 32 28 #define SECTION_SIZE_BITS 27 29 30 /* 31 * Cache flushing area - SA1100 zero bank 32 */ 33 #define FLUSH_BASE_PHYS 0xe0000000 34 #define FLUSH_BASE 0xf5000000 35 #define FLUSH_BASE_MINICACHE 0xf5100000 36 37 #endif