RTC clock on AXON

General
1

How to enable RTC clock on AXON?

I can see a battery connector for RTC clock on the board. Upon some investigation I found that rtc clock is enabled by Hymn8563. And /dev/rtc0 is wired to this Hymm8563. However, I can’t find any external RTC clock IC on the board. Is this result of a bad merge in kernel device tree?

image
image791×193 66.7 KB

2

No, there is hymn8563 on the board. It located just right of DRAM and below PCIe 2.0 slot.

3

oh! I was informed otherwise that it doesn’t use external hym8563 IC but rather RK3588’s internal rtc. I found no such RTC sources in RK3588 datasheet. Hence I raised this issue.

Thanks for clarifying.

1 Like