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Diffstat (limited to 'arch/mips/include/asm/mach-jazz/mc146818rtc.h')
-rw-r--r--arch/mips/include/asm/mach-jazz/mc146818rtc.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-jazz/mc146818rtc.h b/arch/mips/include/asm/mach-jazz/mc146818rtc.h
new file mode 100644
index 000000000000..987f727afe25
--- /dev/null
+++ b/arch/mips/include/asm/mach-jazz/mc146818rtc.h
@@ -0,0 +1,38 @@
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 by Ralf Baechle
7 * Copyright (C) 2007 Thomas Bogendoerfer
8 *
9 * RTC routines for Jazz style attached Dallas chip.
10 */
11#ifndef __ASM_MACH_JAZZ_MC146818RTC_H
12#define __ASM_MACH_JAZZ_MC146818RTC_H
13
14#include <linux/delay.h>
15
16#include <asm/io.h>
17#include <asm/jazz.h>
18
19#define RTC_PORT(x) (0x70 + (x))
20#define RTC_IRQ 8
21
22static inline unsigned char CMOS_READ(unsigned long addr)
23{
24 outb_p(addr, RTC_PORT(0));
25 return *(volatile char *)JAZZ_RTC_BASE;
26}
27
28static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
29{
30 outb_p(addr, RTC_PORT(0));
31 *(volatile char *)JAZZ_RTC_BASE = data;
32}
33
34#define RTC_ALWAYS_BCD 0
35
36#define mc146818_decode_year(year) ((year) + 1980)
37
38#endif /* __ASM_MACH_JAZZ_MC146818RTC_H */