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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-clps711x/edb7211-mm.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/arm/mach-clps711x/edb7211-mm.c')
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diff --git a/arch/arm/mach-clps711x/edb7211-mm.c b/arch/arm/mach-clps711x/edb7211-mm.c
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@@ -0,0 +1,70 @@
1/*
2 * linux/arch/arm/mach-clps711x/mm.c
3 *
4 * Extra MM routines for the EDB7211 board
5 *
6 * Copyright (C) 2000, 2001 Blue Mug, Inc. All Rights Reserved.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22#include <linux/kernel.h>
23#include <linux/init.h>
24
25#include <asm/hardware.h>
26#include <asm/page.h>
27#include <asm/pgtable.h>
28#include <asm/sizes.h>
29
30#include <asm/mach/map.h>
31
32extern void clps711x_map_io(void);
33
34/*
35 * The on-chip registers are given a size of 1MB so that a section can
36 * be used to map them; this saves a page table. This is the place to
37 * add mappings for ROM, expansion memory, PCMCIA, etc. (if static
38 * mappings are chosen for those areas).
39 *
40 * Here is a physical memory map (to be fleshed out later):
41 *
42 * Physical Address Size Description
43 * ----------------- ----- ---------------------------------
44 * c0000000-c001ffff 128KB reserved for video RAM [1]
45 * c0020000-c0023fff 16KB parameters (see Documentation/arm/Setup)
46 * c0024000-c0027fff 16KB swapper_pg_dir (task 0 page directory)
47 * c0028000-... kernel image (TEXTADDR)
48 *
49 * [1] Unused pages should be given back to the VM; they are not yet.
50 * The parameter block should also be released (not sure if this
51 * happens).
52 */
53static struct map_desc edb7211_io_desc[] __initdata = {
54 /* virtual, physical, length, type */
55
56 /* memory-mapped extra keyboard row and CS8900A Ethernet chip */
57 { EP7211_VIRT_EXTKBD, EP7211_PHYS_EXTKBD, SZ_1M, MT_DEVICE },
58 { EP7211_VIRT_CS8900A, EP7211_PHYS_CS8900A, SZ_1M, MT_DEVICE },
59
60 /* flash banks */
61 { EP7211_VIRT_FLASH1, EP7211_PHYS_FLASH1, SZ_8M, MT_DEVICE },
62 { EP7211_VIRT_FLASH2, EP7211_PHYS_FLASH2, SZ_8M, MT_DEVICE }
63};
64
65void __init edb7211_map_io(void)
66{
67 clps711x_map_io();
68 iotable_init(edb7211_io_desc, ARRAY_SIZE(edb7211_io_desc));
69}
70