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39 lines
935 B
39 lines
935 B
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* RTC definitions for DECstation style attached Dallas DS1287 chip. |
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* |
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* Copyright (C) 1998, 2001 by Ralf Baechle |
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* Copyright (C) 1998 by Harald Koerfgen |
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* Copyright (C) 2002, 2005 Maciej W. Rozycki |
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*/ |
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#ifndef __ASM_MIPS_DEC_RTC_DEC_H |
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#define __ASM_MIPS_DEC_RTC_DEC_H |
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#include <linux/types.h> |
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#include <asm/addrspace.h> |
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#include <asm/dec/system.h> |
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extern volatile u8 *dec_rtc_base; |
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#define ARCH_RTC_LOCATION |
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#define RTC_PORT(x) CPHYSADDR((long)dec_rtc_base) |
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#define RTC_IO_EXTENT dec_kn_slot_size |
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#define RTC_IOMAPPED 0 |
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#undef RTC_IRQ |
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#define RTC_DEC_YEAR 0x3f /* Where we store the real year on DECs. */ |
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static inline unsigned char CMOS_READ(unsigned long addr) |
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{ |
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return dec_rtc_base[addr * 4]; |
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} |
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static inline void CMOS_WRITE(unsigned char data, unsigned long addr) |
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{ |
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dec_rtc_base[addr * 4] = data; |
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} |
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#define RTC_ALWAYS_BCD 0 |
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#endif /* __ASM_MIPS_DEC_RTC_DEC_H */
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