1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2008, Guennadi Liakhovetski <lg@denx.de>
4 */
5
6 #include <common.h>
7 #include <rtc.h>
8 #include <spi.h>
9 #include <power/pmic.h>
10 #include <fsl_pmic.h>
11
rtc_get(struct rtc_time * rtc)12 int rtc_get(struct rtc_time *rtc)
13 {
14 u32 day1, day2, time;
15 int tim, i = 0;
16 struct pmic *p = pmic_get("FSL_PMIC");
17 int ret;
18
19 if (!p)
20 return -1;
21 do {
22 ret = pmic_reg_read(p, REG_RTC_DAY, &day1);
23 if (ret < 0)
24 return -1;
25
26 ret = pmic_reg_read(p, REG_RTC_TIME, &time);
27 if (ret < 0)
28 return -1;
29
30 ret = pmic_reg_read(p, REG_RTC_DAY, &day2);
31 if (ret < 0)
32 return -1;
33
34 } while (day1 != day2 && i++ < 3);
35
36 tim = day1 * 86400 + time;
37
38 rtc_to_tm(tim, rtc);
39
40 rtc->tm_yday = 0;
41 rtc->tm_isdst = 0;
42
43 return 0;
44 }
45
rtc_set(struct rtc_time * rtc)46 int rtc_set(struct rtc_time *rtc)
47 {
48 u32 time, day;
49 struct pmic *p = pmic_get("FSL_PMIC");
50 if (!p)
51 return -1;
52
53 time = rtc_mktime(rtc);
54 day = time / 86400;
55 time %= 86400;
56
57 pmic_reg_write(p, REG_RTC_DAY, day);
58 pmic_reg_write(p, REG_RTC_TIME, time);
59
60 return 0;
61 }
62
rtc_reset(void)63 void rtc_reset(void)
64 {
65 }
66