| /* 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 |
