summaryrefslogtreecommitdiffstats
path: root/arch/mips/include/asm/mach-loongson/mc146818rtc.h
diff options
context:
space:
mode:
authorFrederic Weisbecker2009-10-18 01:09:09 +0200
committerFrederic Weisbecker2009-10-18 01:12:33 +0200
commit0f8f86c7bdd1c954fbe153af437a0d91a6c5721a (patch)
tree94a8d419a470a4f9852ca397bb9bbe48db92ff5c /arch/mips/include/asm/mach-loongson/mc146818rtc.h
parentMerge branch 'linus' into tracing/hw-breakpoints (diff)
parentperf tools: Move dereference after NULL test (diff)
downloadkernel-qcow2-linux-0f8f86c7bdd1c954fbe153af437a0d91a6c5721a.tar.gz
kernel-qcow2-linux-0f8f86c7bdd1c954fbe153af437a0d91a6c5721a.tar.xz
kernel-qcow2-linux-0f8f86c7bdd1c954fbe153af437a0d91a6c5721a.zip
Merge commit 'perf/core' into perf/hw-breakpoint
Conflicts: kernel/Makefile kernel/trace/Makefile kernel/trace/trace.h samples/Makefile Merge reason: We need to be uptodate with the perf events development branch because we plan to rewrite the breakpoints API on top of perf events.
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 000000000000..ed7fe978335a
--- /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 */