/* SPDX-License-Identifier: GPL-2.0-only */ /* * Carsten Langgaard, carstenl@mips.com * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. * Copyright (C) 2003 by Ralf Baechle * * RTC routines for Malta style attached PIIX4 device, which contains a * Motorola MC146818A-compatible Real Time Clock. */ #ifndef __ASM_MACH_MALTA_MC146818RTC_H #define __ASM_MACH_MALTA_MC146818RTC_H #include <asm/io.h> #include <asm/mips-boards/generic.h> #include <asm/mips-boards/malta.h> #define RTC_PORT(x) (0x70 + (x)) #define RTC_IRQ 8 static inline unsigned char CMOS_READ(unsigned long addr) { outb(addr, MALTA_RTC_ADR_REG); return inb(MALTA_RTC_DAT_REG); } static inline void CMOS_WRITE(unsigned char data, unsigned long addr) { outb(addr, MALTA_RTC_ADR_REG); outb(data, MALTA_RTC_DAT_REG); } #define RTC_ALWAYS_BCD 0 #define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900) #endif /* __ASM_MACH_MALTA_MC146818RTC_H */