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?
--
Chris Adams <linux@cmadams.net>
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