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-rw-r--r--include/asm-arm/arch-clps711x/memory.h94
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diff --git a/include/asm-arm/arch-clps711x/memory.h b/include/asm-arm/arch-clps711x/memory.h
deleted file mode 100644
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--- a/include/asm-arm/arch-clps711x/memory.h
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1/*
2 * linux/include/asm-arm/arch-clps711x/memory.h
3 *
4 * Copyright (C) 1999 ARM Limited
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20#ifndef __ASM_ARCH_MEMORY_H
21#define __ASM_ARCH_MEMORY_H
22
23
24/*
25 * Physical DRAM offset.
26 */
27#define PHYS_OFFSET UL(0xc0000000)
28
29/*
30 * Virtual view <-> DMA view memory address translations
31 * virt_to_bus: Used to translate the virtual address to an
32 * address suitable to be passed to set_dma_addr
33 * bus_to_virt: Used to convert an address for DMA operations
34 * to an address that the kernel can use.
35 */
36
37#if defined(CONFIG_ARCH_CDB89712)
38
39#define __virt_to_bus(x) (x)
40#define __bus_to_virt(x) (x)
41
42#elif defined (CONFIG_ARCH_AUTCPU12)
43
44#define __virt_to_bus(x) (x)
45#define __bus_to_virt(x) (x)
46
47#else
48
49#define __virt_to_bus(x) ((x) - PAGE_OFFSET)
50#define __bus_to_virt(x) ((x) + PAGE_OFFSET)
51
52#endif
53
54
55/*
56 * Like the SA1100, the EDB7211 has a large gap between physical RAM
57 * banks. In 2.2, the Psion (CL-PS7110) port added custom support for
58 * discontiguous physical memory. In 2.4, we can use the standard
59 * Linux NUMA support.
60 *
61 * This is not necessary for EP7211 implementations with only one used
62 * memory bank. For those systems, simply undefine CONFIG_DISCONTIGMEM.
63 */
64
65/*
66 * The PS7211 allows up to 256MB max per DRAM bank, but the EDB7211
67 * uses only one of the two banks (bank #1). However, even within
68 * bank #1, memory is discontiguous.
69 *
70 * The EDB7211 has two 8MB DRAM areas with 8MB of empty space between
71 * them, so we use 24 for the node max shift to get 16MB node sizes.
72 */
73
74/*
75 * Because of the wide memory address space between physical RAM banks on the
76 * SA1100, it's much more convenient to use Linux's NUMA support to implement
77 * our memory map representation. Assuming all memory nodes have equal access
78 * characteristics, we then have generic discontiguous memory support.
79 *
80 * Of course, all this isn't mandatory for SA1100 implementations with only
81 * one used memory bank. For those, simply undefine CONFIG_DISCONTIGMEM.
82 *
83 * The nodes are matched with the physical memory bank addresses which are
84 * incidentally the same as virtual addresses.
85 *
86 * node 0: 0xc0000000 - 0xc7ffffff
87 * node 1: 0xc8000000 - 0xcfffffff
88 * node 2: 0xd0000000 - 0xd7ffffff
89 * node 3: 0xd8000000 - 0xdfffffff
90 */
91#define NODE_MEM_SIZE_BITS 24
92
93#endif
94