LXR uboot/board/ge/common/ge

   1/*
   2 * Copyright 2017 General Electric Company
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#include <common.h>
   8#include <i2c.h>
   9#include <rtc.h>
  10
  11void check_time(void)
  12{
  13        int ret, i;
  14        struct rtc_time tm;
  15        u8 retry = 3;
  16
  17        unsigned int current_i2c_bus = i2c_get_bus_num();
  18
  19        ret = i2c_set_bus_num(CONFIG_SYS_RTC_BUS_NUM);
  20        if (ret < 0)
  21                return;
  22
  23        rtc_init();
  24
  25        for (i = 0; i < retry; i++) {
  26                ret = rtc_get(&tm);
  27                if (!ret || ret == -EINVAL)
  28                        break;
  29        }
  30
  31        if (ret < 0)
  32                env_set("rtc_status", "RTC_ERROR");
  33
  34        if (tm.tm_year > 2037) {
  35                tm.tm_sec  = 0;
  36                tm.tm_min  = 0;
  37                tm.tm_hour = 0;
  38                tm.tm_mday = 1;
  39                tm.tm_wday = 2;
  40                tm.tm_mon  = 1;
  41                tm.tm_year = 2036;
  42
  43                for (i = 0; i < retry; i++) {
  44                        ret = rtc_set(&tm);
  45                        if (!ret)
  46                                break;
  47                }
  48
  49                if (ret < 0)
  50                        env_set("rtc_status", "RTC_ERROR");
  51        }
  52
  53        i2c_set_bus_num(current_i2c_bus);
  54}
  55
  56