linux-arkmicro/linux/arch/mips/lasat/ds1603.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Dallas Semiconductors 1603 RTC driver
 *
 * Brian Murphy <brian@murphy.dk>
 *
 */
#ifndef __DS1603_H
#define __DS1603_H

struct ds_defs {
	volatile u32 *reg;
	volatile u32 *data_reg;
	u32 rst;
	u32 clk;
	u32 data;
	u32 data_read_shift;
	char data_reversed;
	u32 huge_delay;
};

extern struct ds_defs *ds1603;

void ds1603_set_trimmer(unsigned int);
void ds1603_enable(void);
void ds1603_disable(void);
void ds1603_init(struct ds_defs *);

#define TRIMMER_DEFAULT 3
#define TRIMMER_DISABLE_RTC 0

#endif