memory.h

 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