cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

mc146818rtc.h (680B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Machine dependent access functions for RTC registers.
      4 */
      5#ifndef __ASM_ALPHA_MC146818RTC_H
      6#define __ASM_ALPHA_MC146818RTC_H
      7
      8#include <asm/io.h>
      9
     10#ifndef RTC_PORT
     11#define RTC_PORT(x)	(0x70 + (x))
     12#define RTC_ALWAYS_BCD	1	/* RTC operates in binary mode */
     13#endif
     14
     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) ({ \
     20outb_p((addr),RTC_PORT(0)); \
     21inb_p(RTC_PORT(1)); \
     22})
     23#define CMOS_WRITE(val, addr) ({ \
     24outb_p((addr),RTC_PORT(0)); \
     25outb_p((val),RTC_PORT(1)); \
     26})
     27
     28#endif /* __ASM_ALPHA_MC146818RTC_H */