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[karo-tx-linux.git] / arch / mips / lasat / ds1603.h
1 /*
2  * Dallas Semiconductors 1603 RTC driver
3  *
4  * Brian Murphy <brian@murphy.dk>
5  *
6  */
7 #ifndef __DS1603_H
8 #define __DS1603_H
9
10 struct ds_defs {
11         volatile u32 *reg;
12         volatile u32 *data_reg;
13         u32 rst;
14         u32 clk;
15         u32 data;
16         u32 data_read_shift;
17         char data_reversed;
18         u32 huge_delay;
19 };
20
21 extern struct ds_defs *ds1603;
22
23 void ds1603_set_trimmer(unsigned int);
24 void ds1603_enable(void);
25 void ds1603_disable(void);
26 void ds1603_init(struct ds_defs *);
27
28 #define TRIMMER_DEFAULT 3
29 #define TRIMMER_DISABLE_RTC 0
30
31 #endif