[mirror_ubuntu-kernels.git] / arch / mips / include / asm / mach-dec / mc146818rtc.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * RTC definitions for DECstation style attached Dallas DS1287 chip.
 *
 * Copyright (C) 1998, 2001 by Ralf Baechle
 * Copyright (C) 1998 by Harald Koerfgen
 * Copyright (C) 2002, 2005  Maciej W. Rozycki
 */
#ifndef __ASM_MIPS_DEC_RTC_DEC_H
#define __ASM_MIPS_DEC_RTC_DEC_H

#include <linux/types.h>
#include <asm/addrspace.h>
#include <asm/dec/system.h>

extern volatile u8 *dec_rtc_base;

#define ARCH_RTC_LOCATION

#define RTC_PORT(x)	CPHYSADDR((long)dec_rtc_base)
#define RTC_IO_EXTENT	dec_kn_slot_size
#define RTC_IOMAPPED	0
#undef RTC_IRQ

#define RTC_DEC_YEAR	0x3f	/* Where we store the real year on DECs.  */

static inline unsigned char CMOS_READ(unsigned long addr)
{
	return dec_rtc_base[addr * 4];
}

static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
{
	dec_rtc_base[addr * 4] = data;
}

#define RTC_ALWAYS_BCD	0

#endif /* __ASM_MIPS_DEC_RTC_DEC_H */
Commit	Line	Data
2874c5fd	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
1da177e4 LT	2	/*
	3	* RTC definitions for DECstation style attached Dallas DS1287 chip.
	4	*
	5	* Copyright (C) 1998, 2001 by Ralf Baechle
	6	* Copyright (C) 1998 by Harald Koerfgen
a5fc9c0b	7	* Copyright (C) 2002, 2005 Maciej W. Rozycki
1da177e4 LT	8	*/
	9	#ifndef __ASM_MIPS_DEC_RTC_DEC_H
	10	#define __ASM_MIPS_DEC_RTC_DEC_H
	11
	12	#include <linux/types.h>
1da177e4	13	#include <asm/addrspace.h>
a5fc9c0b	14	#include <asm/dec/system.h>
1da177e4 LT	15
1da177e4 LT	16	extern volatile u8 *dec_rtc_base;
1da177e4	17
38e0e8c0 MR	18	#define ARCH_RTC_LOCATION
38e0e8c0 MR	19
a5fc9c0b	20	#define RTC_PORT(x) CPHYSADDR((long)dec_rtc_base)
1da177e4 LT	21	#define RTC_IO_EXTENT dec_kn_slot_size
	22	#define RTC_IOMAPPED 0
	23	#undef RTC_IRQ
	24
	25	#define RTC_DEC_YEAR 0x3f /* Where we store the real year on DECs. */
	26
1da177e4 LT	27	static inline unsigned char CMOS_READ(unsigned long addr)
	28	{
	29	return dec_rtc_base[addr * 4];
	30	}
	31
	32	static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
	33	{
	34	dec_rtc_base[addr * 4] = data;
	35	}
	36
	37	#define RTC_ALWAYS_BCD 0
	38
	39	#endif /* __ASM_MIPS_DEC_RTC_DEC_H */