Wednesday, August 23, 2023

[fedora-arm] Re: Not finding RTC with a different spin?

On Wed, Aug 23, 2023 at 4:12 PM Chris Adams <linux@cmadams.net> wrote:
>
> I have a Raspberry Pi 4B running Fedora 38 (server edition) that I use
> as a little occasional server for random things. Since it doesn't
> always have NTP available, I added an RTC module, and added
> "dtoverlay=i2c-rtc,ds1307" to /boot/efi/config.txt (no other change);
> all is good.
>
> Now I have a short-term need to use it as a desktop, so I put the XFCE
> spin on a different uSD card. I made the same edit to config.txt... and
> it doesn't work. No RTC.
>
> I've loaded all the Fedora updates, including the firmware with
> "rpi-uboot-update", but it still doesn't work. If I swap back to the
> "server" uSD card, it sees the RTC.
>
> The only difference I can see is that the original card is 32G and the
> new card is 64G (so "SDXC")... would that be an issue to the firmware
> loader?

I doubt it.

Ddi you follow this section of the HATs/Overlay docs?
https://fedoraproject.org/w/index.php?title=Architectures/ARM/Raspberry_Pi/HATs#General_configuration
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