aboutsummaryrefslogtreecommitdiff
path: root/arch/mips/include/asm/mach-loongson/mc146818rtc.h
diff options
context:
space:
mode:
authorFrederic Weisbecker <fweisbec@gmail.com>2009-09-23 23:08:43 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2009-09-23 23:08:43 +0200
commitd7a4b414eed51f1653bb05ebe84122bf9a7ae18b (patch)
treebd6603a0c27de4c138a1767871897e9cd3e1a1d2 /arch/mips/include/asm/mach-loongson/mc146818rtc.h
parent1f0ab40976460bc4673fa204ce917a725185d8f2 (diff)
parenta724eada8c2a7b62463b73ccf73fd0bb6e928aeb (diff)
Merge commit 'linus/master' into tracing/kprobes
Conflicts: kernel/trace/Makefile kernel/trace/trace.h kernel/trace/trace_event_types.h kernel/trace/trace_export.c Merge reason: Sync with latest significant tracing core changes.
Diffstat (limited to 'arch/mips/include/asm/mach-loongson/mc146818rtc.h')
-rw-r--r--arch/mips/include/asm/mach-loongson/mc146818rtc.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-loongson/mc146818rtc.h b/arch/mips/include/asm/mach-loongson/mc146818rtc.h
new file mode 100644
index 00000000000..ed7fe978335
--- /dev/null
+++ b/arch/mips/include/asm/mach-loongson/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, 07 by Ralf Baechle (ralf@linux-mips.org)
+ *
+ * RTC routines for PC style attached Dallas chip.
+ */
+#ifndef __ASM_MACH_LOONGSON_MC146818RTC_H
+#define __ASM_MACH_LOONGSON_MC146818RTC_H
+
+#include <linux/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 0
+
+#ifndef mc146818_decode_year
+#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1970)
+#endif
+
+#endif /* __ASM_MACH_LOONGSON_MC146818RTC_H */