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| author |   Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-06-29 20:17:15 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2006-06-29 22:14:30 +0100 |
| commit | ff0daca525dde796382b9ccd563f169df2571211 (patch) | |
| tree | acb3feb60cec39f316447f702a2277a7448cbad9 /include/asm-arm/memory.h | |
| parent | [ARM] Fix sa11x0 SDRAM selection (diff) | |
| download | linux-dev-ff0daca525dde796382b9ccd563f169df2571211.tar.xz linux-dev-ff0daca525dde796382b9ccd563f169df2571211.zip | |
[ARM] Add section support to ioremap
Allow section mappings to be setup using ioremap() and torn down
with iounmap(). This requires additional support in the MM
context switch to ensure that mappings are properly synchronised
when mapped in.
Based an original implementation by Deepak Saxena, reworked and
ARMv6 support added by rmk.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/memory.h')
| -rw-r--r-- | include/asm-arm/memory.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-arm/memory.h b/include/asm-arm/memory.h index 94f973b704f1..176a4fb04989 100644 --- a/include/asm-arm/memory.h +++ b/include/asm-arm/memory.h @@ -68,6 +68,11 @@ */ #define XIP_VIRT_ADDR(physaddr) (MODULE_START + ((physaddr) & 0x000fffff)) +/* + * Allow 2MB-aligned ioremap pages + */ +#define IOREMAP_MAX_ORDER 21 + #else /* CONFIG_MMU */ /* |