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authorPaul Mundt <lethal@linux-sh.org>2009-04-21 17:12:16 +0900
committerPaul Mundt <lethal@linux-sh.org>2009-04-21 17:12:16 +0900
commit4db25d496c09fdf094d52d11a90ae51f9ee473c6 (patch)
tree77ab8003db1d6ccbcf3a9acafad26002fba37b63 /arch/m32r/include/asm/mc146818rtc.h
parentb8c193f88ebd8705b3e916532539031cd9fc0b4c (diff)
parent8c31813f31cd4403b46802866949a95a6e8fa584 (diff)
Merge branch 'sh/stable-updates' into sh/for-2.6.30
Diffstat (limited to 'arch/m32r/include/asm/mc146818rtc.h')
-rw-r--r--arch/m32r/include/asm/mc146818rtc.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/m32r/include/asm/mc146818rtc.h b/arch/m32r/include/asm/mc146818rtc.h
new file mode 100644
index 00000000000..aa1b7bf84f5
--- /dev/null
+++ b/arch/m32r/include/asm/mc146818rtc.h
@@ -0,0 +1,29 @@
+/*
+ * Machine dependent access functions for RTC registers.
+ */
+#ifndef _ASM_MC146818RTC_H
+#define _ASM_MC146818RTC_H
+
+#include <asm/io.h>
+
+#ifndef RTC_PORT
+#define RTC_PORT(x) ((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)); \
+})
+
+#define RTC_IRQ 8
+
+#endif /* _ASM_MC146818RTC_H */