Error when reading time rtc uses hwclock "hwclock: ioctl (RTC_RD_TIME) to / dev / rtc0 to read the time failed: No such device or address" how to deal with?

1. No such device or address

　　This sentence shows that no such peripherals, check the device tree and hardware connections on the current board

2. The author is solved

　　Since there is a connection bus on the rtc device tree for the specified bus rtc hardware access, so modified to conform to resolve this issue.