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| author | David Vrabel <david.vrabel@csr.com> | 2009-01-02 16:17:13 +0300 |
|---|---|---|
| committer | David Vrabel <david.vrabel@csr.com> | 2009-01-02 16:17:13 +0300 |
| commit | b21a207141d83a06abc5f492b80204602e02ca44 (patch) | |
| tree | f0152cde543008c72d7eb5c12c18095ad92785e6 /arch/arm/mach-footbridge/include/mach/memory.h | |
| parent | 3af373021fa32f8f787bfbdcc1a9277a287bde4e (diff) | |
| parent | b58602a4bac012b5f4fc12fe6b46ab237b610d5d (diff) | |
| download | linux-b21a207141d83a06abc5f492b80204602e02ca44.tar.xz | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
Conflicts:
drivers/uwb/wlp/eda.c
Diffstat (limited to 'arch/arm/mach-footbridge/include/mach/memory.h')
| -rw-r--r-- | arch/arm/mach-footbridge/include/mach/memory.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-footbridge/include/mach/memory.h b/arch/arm/mach-footbridge/include/mach/memory.h index 6ae2f1a07ab9..cb16e59d87b6 100644 --- a/arch/arm/mach-footbridge/include/mach/memory.h +++ b/arch/arm/mach-footbridge/include/mach/memory.h @@ -30,9 +30,18 @@ extern unsigned long __virt_to_bus(unsigned long); extern unsigned long __bus_to_virt(unsigned long); #endif +#define __virt_to_bus __virt_to_bus +#define __bus_to_virt __bus_to_virt #elif defined(CONFIG_FOOTBRIDGE_HOST) +/* + * The footbridge is programmed to expose the system RAM at the corresponding + * address. So, if PAGE_OFFSET is 0xc0000000, RAM appears at 0xe0000000. + * If 0x80000000, then its exposed at 0xa0000000 on the bus. etc. + * The only requirement is that the RAM isn't placed at bus address 0 which + * would clash with VGA cards. + */ #define __virt_to_bus(x) ((x) - 0xe0000000) #define __bus_to_virt(x) ((x) + 0xe0000000) |