There are two spidev overlays:
BB-SPIDEV0-00A0.dtbo
and
BB-SPIDEV1-00A0.dtbo
One conflicts with hdmi audio… So update /boot/uEnv.txt with:
enable_uboot_overlays=1
uboot_overlay_addr4=BB-SPIDEV0-00A0.dtbo
uboot_overlay_addr5=BB-SPIDEV1-00A0.dtbo
disable_uboot_overlay_video=1
disable_uboot_overlay_audio=1
You can verify with sudo beagle-version
voodoo@PB2UBOOT:~$ sudo beagle-version
eeprom:[A335BNLT00D0BBB215050010]
model:[TI_AM335x_BeagleBone_Black]
dogtag:[BeagleBoard.org Debian Trixie Base Image 2025-09-05]
bootloader:[microSD-(push-button)]:[/dev/mmcblk0]:[U-Boot SPL 2022.04-gb4b56c73 (Oct 28 2025 - 17:45:28 +0000)]:[location: dd MBR]
bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot SPL 2022.04-gb4b56c73 (Oct 28 2025 - 17:45:28 +0000)]:[location: dd MBR]
UBOOT: Booted Device-Tree:[am335x-boneblack-uboot.dts]
UBOOT: Loaded Overlay:[BB-ADC-00A0.kernel]
UBOOT: Loaded Overlay:[BB-BONE-eMMC1-01-00A0.kernel]
UBOOT: Loaded Overlay:[BB-SPIDEV0-00A0.kernel]
UBOOT: Loaded Overlay:[BB-SPIDEV1-00A0.kernel]
kernel:[6.18.0-rc5-bone6]
/boot/uEnv.txt Settings:
uboot_overlay_options:[enable_uboot_overlays=1]
uboot_overlay_options:[uboot_overlay_addr4=BB-SPIDEV0-00A0.dtbo]
uboot_overlay_options:[uboot_overlay_addr5=BB-SPIDEV1-00A0.dtbo]
uboot_overlay_options:[disable_uboot_overlay_video=1]
uboot_overlay_options:[disable_uboot_overlay_audio=1]
uboot_overlay_options:[enable_uboot_cape_universal=1]
Regards,