Re: [PATCH] arm64: dts: imx8mn-beacon-som: Configure RTC aliases
From: Shawn Guo
Date: Sun Jan 17 2021 - 19:19:56 EST
On Sun, Jan 10, 2021 at 05:53:53AM -0600, Adam Ford wrote:
> On the i.MX8MN Beacon SOM, there is an RTC chip which is fed power
> from the baseboard during power off. The SNVS RTC integrated into
> the SoC is not fed power. Depending on the order the modules are
> loaded, this can be a problem if the external RTC isn't rtc0.
> Make the alias for rtc0 point to the external RTC all the time and
> rtc1 point to the SVNS in order to correctly hold date/time over
> a power-cycle.
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>