aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-ppc64/mc146818rtc.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-ppc64/mc146818rtc.h
Linux-2.6.12-rc2v2.6.12-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-ppc64/mc146818rtc.h')
-rw-r--r--include/asm-ppc64/mc146818rtc.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/include/asm-ppc64/mc146818rtc.h b/include/asm-ppc64/mc146818rtc.h
new file mode 100644
index 000000000000..f713e1bbb533
--- /dev/null
+++ b/include/asm-ppc64/mc146818rtc.h
@@ -0,0 +1,32 @@
1/*
2 * Machine dependent access functions for RTC registers.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */
9#ifndef __ASM_PPC64_MC146818RTC_H
10#define __ASM_PPC64_MC146818RTC_H
11
12#include <asm/io.h>
13
14#ifndef RTC_PORT
15#define RTC_PORT(x) (0x70 + (x))
16#define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */
17#endif
18
19/*
20 * The yet supported machines all access the RTC index register via
21 * an ISA port access but the way to access the date register differs ...
22 */
23#define CMOS_READ(addr) ({ \
24outb_p((addr),RTC_PORT(0)); \
25inb_p(RTC_PORT(1)); \
26})
27#define CMOS_WRITE(val, addr) ({ \
28outb_p((addr),RTC_PORT(0)); \
29outb_p((val),RTC_PORT(1)); \
30})
31
32#endif /* __ASM_PPC64_MC146818RTC_H */