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 <asm/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
38