diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm/arch-omap/memory.h |
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 'include/asm-arm/arch-omap/memory.h')
-rw-r--r-- | include/asm-arm/arch-omap/memory.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/include/asm-arm/arch-omap/memory.h b/include/asm-arm/arch-omap/memory.h new file mode 100644 index 000000000000..f6b57dd846a3 --- /dev/null +++ b/include/asm-arm/arch-omap/memory.h | |||
@@ -0,0 +1,87 @@ | |||
1 | /* | ||
2 | * linux/include/asm-arm/arch-omap/memory.h | ||
3 | * | ||
4 | * Memory map for OMAP-1510 and 1610 | ||
5 | * | ||
6 | * Copyright (C) 2000 RidgeRun, Inc. | ||
7 | * Author: Greg Lonnon <glonnon@ridgerun.com> | ||
8 | * | ||
9 | * This file was derived from linux/include/asm-arm/arch-intergrator/memory.h | ||
10 | * Copyright (C) 1999 ARM Limited | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or modify it | ||
13 | * under the terms of the GNU General Public License as published by the | ||
14 | * Free Software Foundation; either version 2 of the License, or (at your | ||
15 | * option) any later version. | ||
16 | * | ||
17 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | ||
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | ||
19 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN | ||
20 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | ||
23 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | ||
24 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | ||
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
27 | * | ||
28 | * You should have received a copy of the GNU General Public License along | ||
29 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
30 | * 675 Mass Ave, Cambridge, MA 02139, USA. | ||
31 | */ | ||
32 | |||
33 | #ifndef __ASM_ARCH_MEMORY_H | ||
34 | #define __ASM_ARCH_MEMORY_H | ||
35 | |||
36 | /* | ||
37 | * Physical DRAM offset. | ||
38 | */ | ||
39 | #define PHYS_OFFSET (0x10000000UL) | ||
40 | |||
41 | /* | ||
42 | * OMAP-1510 Local Bus address offset | ||
43 | */ | ||
44 | #define OMAP1510_LB_OFFSET (0x30000000UL) | ||
45 | |||
46 | /* | ||
47 | * Conversion between SDRAM and fake PCI bus, used by USB | ||
48 | * NOTE: Physical address must be converted to Local Bus address | ||
49 | * on OMAP-1510 only | ||
50 | */ | ||
51 | |||
52 | /* | ||
53 | * Bus address is physical address, except for OMAP-1510 Local Bus. | ||
54 | */ | ||
55 | #define __virt_to_bus(x) __virt_to_phys(x) | ||
56 | #define __bus_to_virt(x) __phys_to_virt(x) | ||
57 | |||
58 | /* | ||
59 | * OMAP-1510 bus address is translated into a Local Bus address if the | ||
60 | * OMAP bus type is lbus. We do the address translation based on the | ||
61 | * device overriding the defaults used in the dma-mapping API. | ||
62 | * Note that the is_lbus_device() test is not very efficient on 1510 | ||
63 | * because of the strncmp(). | ||
64 | */ | ||
65 | #ifdef CONFIG_ARCH_OMAP1510 | ||
66 | |||
67 | #define virt_to_lbus(x) ((x) - PAGE_OFFSET + OMAP1510_LB_OFFSET) | ||
68 | #define lbus_to_virt(x) ((x) - OMAP1510_LB_OFFSET + PAGE_OFFSET) | ||
69 | #define is_lbus_device(dev) (cpu_is_omap1510() && dev && (strncmp(dev->bus_id, "ohci", 4) == 0)) | ||
70 | |||
71 | #define __arch_page_to_dma(dev, page) ({is_lbus_device(dev) ? \ | ||
72 | (dma_addr_t)virt_to_lbus(page_address(page)) : \ | ||
73 | (dma_addr_t)__virt_to_bus(page_address(page));}) | ||
74 | |||
75 | #define __arch_dma_to_virt(dev, addr) ({is_lbus_device(dev) ? \ | ||
76 | lbus_to_virt(addr) : \ | ||
77 | __bus_to_virt(addr);}) | ||
78 | |||
79 | #define __arch_virt_to_dma(dev, addr) ({is_lbus_device(dev) ? \ | ||
80 | virt_to_lbus(addr) : \ | ||
81 | __virt_to_bus(addr);}) | ||
82 | |||
83 | #endif /* CONFIG_ARCH_OMAP1510 */ | ||
84 | |||
85 | #define PHYS_TO_NID(addr) (0) | ||
86 | #endif | ||
87 | |||