1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Machine dependent access functions for RTC registers.
5 #ifndef __ASM_SPARC64_MC146818RTC_H
6 #define __ASM_SPARC64_MC146818RTC_H
11 extern unsigned long cmos_regs
;
12 #define RTC_PORT(x) (cmos_regs + (x))
13 #define RTC_ALWAYS_BCD 0
17 * The yet supported machines all access the RTC index register via
18 * an ISA port access but the way to access the date register differs ...
20 #define CMOS_READ(addr) ({ \
21 outb_p((addr),RTC_PORT(0)); \
24 #define CMOS_WRITE(val, addr) ({ \
25 outb_p((addr),RTC_PORT(0)); \
26 outb_p((val),RTC_PORT(1)); \
29 #endif /* __ASM_SPARC64_MC146818RTC_H */