arch/m68k/include/asm/mc146818rtc.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Machine dependent access functions for RTC registers.
   4  */
   5 #ifndef _ASM_MC146818RTC_H
   6 #define _ASM_MC146818RTC_H
   7
   8
   9 #ifdef CONFIG_ATARI
  10 /* RTC in Atari machines */
  11
  12 #include <asm/atarihw.h>
  13
  14 #define ATARI_RTC_PORT(x)       (TT_RTC_BAS + 2*(x))
  15 #define RTC_ALWAYS_BCD  0
  16
  17 #define CMOS_READ(addr) ({ \
  18 atari_outb_p((addr), ATARI_RTC_PORT(0)); \
  19 atari_inb_p(ATARI_RTC_PORT(1)); \
  20 })
  21 #define CMOS_WRITE(val, addr) ({ \
  22 atari_outb_p((addr), ATARI_RTC_PORT(0)); \
  23 atari_outb_p((val), ATARI_RTC_PORT(1)); \
  24 })
  25 #endif /* CONFIG_ATARI */
  26
  27 #endif /* _ASM_MC146818RTC_H */