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authorJon Loeliger <jdl@freescale.com>2005-09-01 22:51:52 +0200
committerPaul Mackerras <paulus@samba.org>2005-09-06 08:07:53 +0200
commit6b9269abd64c54f11dc4aaf162d2915fccae6c77 (patch)
tree78d19c06dd3f09582cdd5aa91d0981de18a99ca6 /include/asm-powerpc/mc146818rtc.h
parent[PATCH] Move 3 more headers to asm-powerpc (diff)
downloadlinux-6b9269abd64c54f11dc4aaf162d2915fccae6c77.tar.xz
linux-6b9269abd64c54f11dc4aaf162d2915fccae6c77.zip
[PATCH] ppc/ppc64: Merge more include files
This patch merges several include files from asm-ppc and asm-ppc64 into the new asm-powerpc. Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/mc146818rtc.h')
-rw-r--r--include/asm-powerpc/mc146818rtc.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/include/asm-powerpc/mc146818rtc.h b/include/asm-powerpc/mc146818rtc.h
new file mode 100644
index 000000000000..a5619a2a1393
--- /dev/null
+++ b/include/asm-powerpc/mc146818rtc.h
@@ -0,0 +1,36 @@
+#ifndef _POWERPC_MC146818RTC_H
+#define _POWERPC_MC146818RTC_H
+
+/*
+ * Machine dependent access functions for RTC registers.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifdef __KERNEL__
+
+#include <asm/io.h>
+
+#ifndef RTC_PORT
+#define RTC_PORT(x) (0x70 + (x))
+#define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */
+#endif
+
+/*
+ * The yet supported machines all access the RTC index register via
+ * an ISA port access but the way to access the date register differs ...
+ */
+#define CMOS_READ(addr) ({ \
+outb_p((addr),RTC_PORT(0)); \
+inb_p(RTC_PORT(1)); \
+})
+#define CMOS_WRITE(val, addr) ({ \
+outb_p((addr),RTC_PORT(0)); \
+outb_p((val),RTC_PORT(1)); \
+})
+
+#endif /* __KERNEL__ */
+#endif /* _POWERPC_MC146818RTC_H */