aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-mips/mach-lemote/mc146818rtc.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-mips/mach-lemote/mc146818rtc.h')
-rw-r--r--include/asm-mips/mach-lemote/mc146818rtc.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/include/asm-mips/mach-lemote/mc146818rtc.h b/include/asm-mips/mach-lemote/mc146818rtc.h
new file mode 100644
index 000000000000..ed5147e11085
--- /dev/null
+++ b/include/asm-mips/mach-lemote/mc146818rtc.h
@@ -0,0 +1,36 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 1998, 2001, 03, 07 by Ralf Baechle (ralf@linux-mips.org)
7 *
8 * RTC routines for PC style attached Dallas chip.
9 */
10#ifndef __ASM_MACH_LEMOTE_MC146818RTC_H
11#define __ASM_MACH_LEMOTE_MC146818RTC_H
12
13#include <linux/io.h>
14
15#define RTC_PORT(x) (0x70 + (x))
16#define RTC_IRQ 8
17
18static inline unsigned char CMOS_READ(unsigned long addr)
19{
20 outb_p(addr, RTC_PORT(0));
21 return inb_p(RTC_PORT(1));
22}
23
24static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
25{
26 outb_p(addr, RTC_PORT(0));
27 outb_p(data, RTC_PORT(1));
28}
29
30#define RTC_ALWAYS_BCD 0
31
32#ifndef mc146818_decode_year
33#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1970)
34#endif
35
36#endif /* __ASM_MACH_LEMOTE_MC146818RTC_H */