ge_common.c 859 B

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