diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-x86_64/mc146818rtc.h |
Linux-2.6.12-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-x86_64/mc146818rtc.h')
-rw-r--r-- | include/asm-x86_64/mc146818rtc.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/asm-x86_64/mc146818rtc.h b/include/asm-x86_64/mc146818rtc.h new file mode 100644 index 000000000000..d6e3009430c1 --- /dev/null +++ b/include/asm-x86_64/mc146818rtc.h | |||
@@ -0,0 +1,29 @@ | |||
1 | /* | ||
2 | * Machine dependent access functions for RTC registers. | ||
3 | */ | ||
4 | #ifndef _ASM_MC146818RTC_H | ||
5 | #define _ASM_MC146818RTC_H | ||
6 | |||
7 | #include <asm/io.h> | ||
8 | |||
9 | #ifndef RTC_PORT | ||
10 | #define RTC_PORT(x) (0x70 + (x)) | ||
11 | #define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */ | ||
12 | #endif | ||
13 | |||
14 | /* | ||
15 | * The yet supported machines all access the RTC index register via | ||
16 | * an ISA port access but the way to access the date register differs ... | ||
17 | */ | ||
18 | #define CMOS_READ(addr) ({ \ | ||
19 | outb_p((addr),RTC_PORT(0)); \ | ||
20 | inb_p(RTC_PORT(1)); \ | ||
21 | }) | ||
22 | #define CMOS_WRITE(val, addr) ({ \ | ||
23 | outb_p((addr),RTC_PORT(0)); \ | ||
24 | outb_p((val),RTC_PORT(1)); \ | ||
25 | }) | ||
26 | |||
27 | #define RTC_IRQ 8 | ||
28 | |||
29 | #endif /* _ASM_MC146818RTC_H */ | ||