ia64/linux-2.6.18-xen.hg

view include/asm-arm/mc146818rtc.h @ 782:9ab1c319531f

merge with linux-2.6.18-xen.hg
author Isaku Yamahata <yamahata@valinux.co.jp>
date Wed Jan 28 13:07:23 2009 +0900 (2009-01-28)
parents 831230e53067
children
line source
1 /*
2 * Machine dependent access functions for RTC registers.
3 */
4 #ifndef _ASM_MC146818RTC_H
5 #define _ASM_MC146818RTC_H
7 #include <asm/arch/irqs.h>
8 #include <asm/io.h>
10 #ifndef RTC_PORT
11 #define RTC_PORT(x) (0x70 + (x))
12 #define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */
13 #endif
15 /*
16 * The yet supported machines all access the RTC index register via
17 * an ISA port access but the way to access the date register differs ...
18 */
19 #define CMOS_READ(addr) ({ \
20 outb_p((addr),RTC_PORT(0)); \
21 inb_p(RTC_PORT(1)); \
22 })
23 #define CMOS_WRITE(val, addr) ({ \
24 outb_p((addr),RTC_PORT(0)); \
25 outb_p((val),RTC_PORT(1)); \
26 })
28 #endif /* _ASM_MC146818RTC_H */