diff options
Diffstat (limited to 'arch/m68k/include/asm/mc146818rtc.h')
| -rw-r--r-- | arch/m68k/include/asm/mc146818rtc.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/mc146818rtc.h b/arch/m68k/include/asm/mc146818rtc.h new file mode 100644 index 0000000000..6e9f319ce4 --- /dev/null +++ b/arch/m68k/include/asm/mc146818rtc.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Machine dependent access functions for RTC registers. + */ +#ifndef _ASM_MC146818RTC_H +#define _ASM_MC146818RTC_H + + +#ifdef CONFIG_ATARI +/* RTC in Atari machines */ + +#include <asm/atarihw.h> + +#define ATARI_RTC_PORT(x) (TT_RTC_BAS + 2*(x)) +#define RTC_ALWAYS_BCD 0 + +#define CMOS_READ(addr) ({ \ +atari_outb_p((addr), ATARI_RTC_PORT(0)); \ +atari_inb_p(ATARI_RTC_PORT(1)); \ +}) +#define CMOS_WRITE(val, addr) ({ \ +atari_outb_p((addr), ATARI_RTC_PORT(0)); \ +atari_outb_p((val), ATARI_RTC_PORT(1)); \ +}) +#endif /* CONFIG_ATARI */ + +#endif /* _ASM_MC146818RTC_H */ |