1 /* 1
2 * arch/m68k/sun3/intersil.c
3 *
4 * basic routines for accessing the intersil c
5 *
6 * started 11/12/1999 Sam Creasey
7 *
8 * This file is subject to the terms and condi
9 * License. See the file COPYING in the main
10 * for more details.
11 */
12
13 #include <linux/kernel.h>
14 #include <linux/rtc.h>
15
16 #include <asm/errno.h>
17 #include <asm/intersil.h>
18 #include <asm/machdep.h>
19
20 #include "sun3.h"
21
22 /* bits to set for start/run of the intersil *
23 #define STOP_VAL (INTERSIL_STOP | INTERSIL_INT
24 #define START_VAL (INTERSIL_RUN | INTERSIL_INT
25
26 /* get/set hwclock */
27
28 int sun3_hwclk(int set, struct rtc_time *t)
29 {
30 volatile struct intersil_dt *todinters
31 unsigned long flags;
32
33 todintersil = (struct intersil_dt *) &
34
35 local_irq_save(flags);
36
37 intersil_clock->cmd_reg = STOP_VAL;
38
39 /* set or read the clock */
40 if(set) {
41 todintersil->csec = 0;
42 todintersil->hour = t->tm_hour
43 todintersil->minute = t->tm_mi
44 todintersil->second = t->tm_se
45 todintersil->month = t->tm_mon
46 todintersil->day = t->tm_mday;
47 todintersil->year = (t->tm_yea
48 todintersil->weekday = t->tm_w
49 } else {
50 /* read clock */
51 t->tm_sec = todintersil->csec;
52 t->tm_hour = todintersil->hour
53 t->tm_min = todintersil->minut
54 t->tm_sec = todintersil->secon
55 t->tm_mon = todintersil->month
56 t->tm_mday = todintersil->day;
57 t->tm_year = todintersil->year
58 t->tm_wday = todintersil->week
59 if (t->tm_year < 70)
60 t->tm_year += 100;
61 }
62
63 intersil_clock->cmd_reg = START_VAL;
64
65 local_irq_restore(flags);
66
67 return 0;
68
69 }
70
71
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