| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 */ |