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| author | Johannes Weiner <jw@emlix.com> | 2009-03-04 16:21:31 +0100 |
|---|---|---|
| committer | Chris Zankel <chris@zankel.net> | 2009-04-02 23:41:50 -0700 |
| commit | e5083a63b6a8546c5fe1e571fe529e3939787ec2 (patch) | |
| tree | 5c11db5b0a924f8bcfc404c202630d37ccfd7c3c /arch/xtensa/include/asm/io.h | |
| parent | 7789f89af9e8e426d7a7f173cf465a4fcadba7dd (diff) | |
| download | linux-e5083a63b6a8546c5fe1e571fe529e3939787ec2.tar.gz linux-e5083a63b6a8546c5fe1e571fe529e3939787ec2.tar.bz2 linux-e5083a63b6a8546c5fe1e571fe529e3939787ec2.zip | |
xtensa: nommu support
Add support for !CONFIG_MMU setups.
Signed-off-by: Johannes Weiner <jw@emlix.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa/include/asm/io.h')
| -rw-r--r-- | arch/xtensa/include/asm/io.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h index 07b7299dab20..d04cd3a625fa 100644 --- a/arch/xtensa/include/asm/io.h +++ b/arch/xtensa/include/asm/io.h @@ -69,21 +69,28 @@ static inline void * phys_to_virt(unsigned long address) static inline void *ioremap(unsigned long offset, unsigned long size) { +#ifdef CONFIG_MMU if (offset >= XCHAL_KIO_PADDR && offset < XCHAL_KIO_PADDR + XCHAL_KIO_SIZE) return (void*)(offset-XCHAL_KIO_PADDR+XCHAL_KIO_BYPASS_VADDR); - else BUG(); +#else + return (void *)offset; +#endif } static inline void *ioremap_nocache(unsigned long offset, unsigned long size) { +#ifdef CONFIG_MMU if (offset >= XCHAL_KIO_PADDR && offset < XCHAL_KIO_PADDR + XCHAL_KIO_SIZE) return (void*)(offset-XCHAL_KIO_PADDR+XCHAL_KIO_CACHED_VADDR); else BUG(); +#else + return (void *)offset; +#endif } static inline void iounmap(void *addr) |