diff options
Diffstat (limited to 'arch/arm/mach-clps711x/edb7211-mm.c')
-rw-r--r-- | arch/arm/mach-clps711x/edb7211-mm.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/arm/mach-clps711x/edb7211-mm.c b/arch/arm/mach-clps711x/edb7211-mm.c new file mode 100644 index 000000000000..7fd7b01822d0 --- /dev/null +++ b/arch/arm/mach-clps711x/edb7211-mm.c | |||
@@ -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 | |||
32 | extern 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 | */ | ||
53 | static 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 | |||
65 | void __init edb7211_map_io(void) | ||
66 | { | ||
67 | clps711x_map_io(); | ||
68 | iotable_init(edb7211_io_desc, ARRAY_SIZE(edb7211_io_desc)); | ||
69 | } | ||
70 | |||