cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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mc146818rtc.h (970B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Carsten Langgaard, carstenl@mips.com
      4 * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
      5 * Copyright (C) 2003 by Ralf Baechle
      6 *
      7 * RTC routines for Malta style attached PIIX4 device, which contains a
      8 * Motorola MC146818A-compatible Real Time Clock.
      9 */
     10#ifndef __ASM_MACH_MALTA_MC146818RTC_H
     11#define __ASM_MACH_MALTA_MC146818RTC_H
     12
     13#include <asm/io.h>
     14#include <asm/mips-boards/generic.h>
     15#include <asm/mips-boards/malta.h>
     16
     17#define RTC_PORT(x)	(0x70 + (x))
     18#define RTC_IRQ		8
     19
     20static inline unsigned char CMOS_READ(unsigned long addr)
     21{
     22	outb(addr, MALTA_RTC_ADR_REG);
     23	return inb(MALTA_RTC_DAT_REG);
     24}
     25
     26static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
     27{
     28	outb(addr, MALTA_RTC_ADR_REG);
     29	outb(data, MALTA_RTC_DAT_REG);
     30}
     31
     32#define RTC_ALWAYS_BCD	0
     33
     34#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900)
     35
     36#endif /* __ASM_MACH_MALTA_MC146818RTC_H */