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27 lines
598 B
27 lines
598 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Machine dependent access functions for RTC registers. |
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*/ |
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#ifndef _ASM_MC146818RTC_H |
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#define _ASM_MC146818RTC_H |
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#ifdef CONFIG_ATARI |
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/* RTC in Atari machines */ |
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#include <asm/atarihw.h> |
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#define ATARI_RTC_PORT(x) (TT_RTC_BAS + 2*(x)) |
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#define RTC_ALWAYS_BCD 0 |
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#define CMOS_READ(addr) ({ \ |
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atari_outb_p((addr), ATARI_RTC_PORT(0)); \ |
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atari_inb_p(ATARI_RTC_PORT(1)); \ |
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}) |
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#define CMOS_WRITE(val, addr) ({ \ |
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atari_outb_p((addr), ATARI_RTC_PORT(0)); \ |
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atari_outb_p((val), ATARI_RTC_PORT(1)); \ |
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}) |
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#endif /* CONFIG_ATARI */ |
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#endif /* _ASM_MC146818RTC_H */
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