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| author |   Maciej W. Rozycki <macro@linux-mips.org> | 2006-07-10 04:45:30 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-10 13:24:25 -0700 |
| commit | 38e0e8c0550eaed1af48ec5ad9ddb8a25e8b04ae (patch) | |
| tree | f38daa22e42969c8eabccfd73dc298dcaec99821 /include/linux/mc146818rtc.h | |
| parent | [PATCH] make valid_mmap_phys_addr_range() take a pfn (diff) | |
| download | linux-dev-38e0e8c0550eaed1af48ec5ad9ddb8a25e8b04ae.tar.xz linux-dev-38e0e8c0550eaed1af48ec5ad9ddb8a25e8b04ae.zip | |
[PATCH] char/rtc: Handle memory-mapped chips properly
Handle memory-mapped chips properly, needed for example on DECstations.
This support was in Linux 2.4 but for some reason got lost in 2.6. This
patch is taken directly from the linux-mips repository.
[akpm@osdl.org: cleanup]
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Cc: Paul Gortmaker <penguin@muskoka.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/mc146818rtc.h')
| -rw-r--r-- | include/linux/mc146818rtc.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/mc146818rtc.h b/include/linux/mc146818rtc.h index bbc93ae217e1..432b2fa24929 100644 --- a/include/linux/mc146818rtc.h +++ b/include/linux/mc146818rtc.h @@ -89,4 +89,11 @@ extern spinlock_t rtc_lock; /* serialize CMOS RAM access */ # define RTC_VRT 0x80 /* valid RAM and time */ /**********************************************************************/ +#ifndef ARCH_RTC_LOCATION /* Override by <asm/mc146818rtc.h>? */ + +#define RTC_IO_EXTENT 0x8 +#define RTC_IOMAPPED 1 /* Default to I/O mapping. */ + +#endif /* ARCH_RTC_LOCATION */ + #endif /* _MC146818RTC_H */ |