/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef _ASM_POWERPC_MC146818RTC_H #define _ASM_POWERPC_MC146818RTC_H /* * Machine dependent access functions for RTC registers. */ #ifdef __KERNEL__ #include <asm/io.h> #ifndef RTC_PORT #define RTC_PORT(x) (0x70 + (x)) #define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */ #endif /* * The yet supported machines all access the RTC index register via * an ISA port access but the way to access the date register differs ... */ #define CMOS_READ(addr) ({ \ outb_p((addr),RTC_PORT(0)); \ inb_p(RTC_PORT(1)); \ }) #define CMOS_WRITE(val, addr) ({ \ outb_p((addr),RTC_PORT(0)); \ outb_p((val),RTC_PORT(1)); \ }) #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_MC146818RTC_H */