1 #ifndef _POWERPC_MC146818RTC_H
2 #define _POWERPC_MC146818RTC_H
5 * Machine dependent access functions for RTC registers.
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
18 #define RTC_PORT(x) (0x70 + (x))
19 #define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */
23 * The yet supported machines all access the RTC index register via
24 * an ISA port access but the way to access the date register differs ...
26 #define CMOS_READ(addr) ({ \
27 outb_p((addr),RTC_PORT(0)); \
30 #define CMOS_WRITE(val, addr) ({ \
31 outb_p((addr),RTC_PORT(0)); \
32 outb_p((val),RTC_PORT(1)); \
35 #endif /* __KERNEL__ */
36 #endif /* _POWERPC_MC146818RTC_H */