Glad you test this, Eduardo: rpi4 8GB: sysutils/u-boot-*: 2023.07.02 && sysutils/rpi-firmware: 1.20230405

From: Fred Finster <fred_at_thegalacticzoo.com>
Date: Fri, 11 Aug 2023 05:20:14 UTC
*/From:/* Nuno Teixeira <eduardo_at_freebsd.org>
*/Date:/* Thu, 10 Aug 2023 11:09:14 UTC

Hello all,

I'm just testing latest updates on u-boot and rpi-firmware and all looks
good on rpi4 8GB rev 1.5

- tested config.txt 'arm_boost=1' and it sets auto cpu to 1800.

dmesg shows a lot of:
clk_fixed4: Cannot FDT parameters.

*I've attached dmesg to e-mail.*

config.txt
===
[all]
arm_64bit=1
#dtparam=audio=on,i2c_arm=on,spi=on
dtoverlay=disable-bt
dtoverlay=mmc
device_tree_address=0x4000
kernel=u-boot.bin

[pi4]
hdmi_safe=0
armstub=armstub8-gic.bin
max_framebuffers=2
hdmi_force_hotplug=1
hdmi_group=2
hdmi_drive=2
hdmi_mode=82
disable_overscan=1
# overclock 20210303
#over_voltage=6
#arm_freq=2000
#sdram_freq_min=3200
arm_boost=1
force_turbo=1
===

Cheers,

-- 
Nuno Teixeira
FreeBSD Committer (ports)


Are you able to use md5deep  or hashdeep to create a file size and file checksum list to
share with us a working version firmware files?

https://ghostbsd-arm64.blogspot.com/2021/05/audit-your-boot-files-with-md5deep.html
Here is my blogpost about using MD5SUM and Sha256sum  checksum protocols.
Notice the listing in the lower comment section on the July 2023 version of these same files.

Fred Finsterfred@thegalacticzoo.com