| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2008, Guennadi Liakhovetski <lg@denx.de> |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0+ |
| 5 | */ |
| 6 | |
| 7 | #include <common.h> |
| 8 | #include <rtc.h> |
| 9 | #include <spi.h> |
| 10 | #include <power/pmic.h> |
| 11 | #include <fsl_pmic.h> |
| 12 | |
| 13 | int rtc_get(struct rtc_time *rtc) |
| 14 | { |
| 15 | u32 day1, day2, time; |
| 16 | int tim, i = 0; |
| 17 | struct pmic *p = pmic_get("FSL_PMIC"); |
| 18 | int ret; |
| 19 | |
| 20 | if (!p) |
| 21 | return -1; |
| 22 | do { |
| 23 | ret = pmic_reg_read(p, REG_RTC_DAY, &day1); |
| 24 | if (ret < 0) |
| 25 | return -1; |
| 26 | |
| 27 | ret = pmic_reg_read(p, REG_RTC_TIME, &time); |
| 28 | if (ret < 0) |
| 29 | return -1; |
| 30 | |
| 31 | ret = pmic_reg_read(p, REG_RTC_DAY, &day2); |
| 32 | if (ret < 0) |
| 33 | return -1; |
| 34 | |
| 35 | } while (day1 != day2 && i++ < 3); |
| 36 | |
| 37 | tim = day1 * 86400 + time; |
| 38 | |
| 39 | to_tm(tim, rtc); |
| 40 | |
| 41 | rtc->tm_yday = 0; |
| 42 | rtc->tm_isdst = 0; |
| 43 | |
| 44 | return 0; |
| 45 | } |
| 46 | |
| 47 | int rtc_set(struct rtc_time *rtc) |
| 48 | { |
| 49 | u32 time, day; |
| 50 | struct pmic *p = pmic_get("FSL_PMIC"); |
| 51 | if (!p) |
| 52 | return -1; |
| 53 | |
| 54 | time = mktime(rtc->tm_year, rtc->tm_mon, rtc->tm_mday, |
| 55 | rtc->tm_hour, rtc->tm_min, rtc->tm_sec); |
| 56 | day = time / 86400; |
| 57 | time %= 86400; |
| 58 | |
| 59 | pmic_reg_write(p, REG_RTC_DAY, day); |
| 60 | pmic_reg_write(p, REG_RTC_TIME, time); |
| 61 | |
| 62 | return 0; |
| 63 | } |
| 64 | |
| 65 | void rtc_reset(void) |
| 66 | { |
| 67 | } |