diff --git a/include/asm-mips/mach-dec/mc146818rtc.h b/include/asm-mips/mach-dec/mc146818rtc.h
new file mode 100644
index 0000000..a326f45
--- /dev/null
+++ b/include/asm-mips/mach-dec/mc146818rtc.h
@@ -0,0 +1,46 @@
+/*
+ * RTC definitions for DECstation style attached Dallas DS1287 chip.
+ *
+ * Copyright (C) 1998, 2001 by Ralf Baechle
+ * Copyright (C) 1998 by Harald Koerfgen
+ * Copyright (C) 2002  Maciej W. Rozycki
+ *
+ * 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.
+ */
+#ifndef __ASM_MIPS_DEC_RTC_DEC_H
+#define __ASM_MIPS_DEC_RTC_DEC_H
+
+#include <linux/types.h>
+
+#include <asm/addrspace.h>
+
+extern volatile u8 *dec_rtc_base;
+extern unsigned long dec_kn_slot_size;
+
+#define RTC_PORT(x)	CPHYSADDR(dec_rtc_base)
+#define RTC_IO_EXTENT	dec_kn_slot_size
+#define RTC_IOMAPPED	0
+#undef RTC_IRQ
+
+#define RTC_DEC_YEAR	0x3f	/* Where we store the real year on DECs.  */
+
+#include <linux/mc146818rtc.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+static inline unsigned char CMOS_READ(unsigned long addr)
+{
+	return dec_rtc_base[addr * 4];
+}
+
+static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
+{
+	dec_rtc_base[addr * 4] = data;
+}
+
+#define RTC_ALWAYS_BCD	0
+
+#endif /* __ASM_MIPS_DEC_RTC_DEC_H */
diff --git a/include/asm-mips/mach-dec/param.h b/include/asm-mips/mach-dec/param.h
new file mode 100644
index 0000000..3e4f0e3
--- /dev/null
+++ b/include/asm-mips/mach-dec/param.h
@@ -0,0 +1,18 @@
+/*
+ * 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) 2003 by Ralf Baechle
+ */
+#ifndef __ASM_MACH_DEC_PARAM_H
+#define __ASM_MACH_DEC_PARAM_H
+
+/*
+ * log2(HZ), change this here if you want another HZ value. This is also
+ * used in dec_time_init.  Minimum is 1, Maximum is 15.
+ */
+#define LOG_2_HZ 7
+#define HZ (1 << LOG_2_HZ)
+
+#endif /* __ASM_MACH_DEC_PARAM_H */