1 files changed, 36 insertions, 0 deletions

diff --git a/arch/mips/include/asm/mach-generic/mc146818rtc.h b/arch/mips/include/asm/mach-generic/mc146818rtc.h
new file mode 100644
index 000000000000..0b9a942f079d
--- /dev/null
+++ b/arch/mips/include/asm/mach-generic/mc146818rtc.h
@@ -0,0 +1,36 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1998, 2001, 03 by Ralf Baechle
+ *
+ * RTC routines for PC style attached Dallas chip.
+ */
+#ifndef __ASM_MACH_GENERIC_MC146818RTC_H
+#define __ASM_MACH_GENERIC_MC146818RTC_H
+
+#include <asm/io.h>
+
+#define RTC_PORT(x)     (0x70 + (x))
+#define RTC_IRQ         8
+
+static inline unsigned char CMOS_READ(unsigned long addr)
+{
+        outb_p(addr, RTC_PORT(0));
+        return inb_p(RTC_PORT(1));
+}
+
+static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
+{
+        outb_p(addr, RTC_PORT(0));
+        outb_p(data, RTC_PORT(1));
+}
+
+#define RTC_ALWAYS_BCD  1
+
+#ifndef mc146818_decode_year
+#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900)
+#endif
+
+#endif /* __ASM_MACH_GENERIC_MC146818RTC_H */