IMPORTANT NOTICE This binary release is an opt-in release for select Intel cAVS2.5 hardware (11th, 12th and 13th Generation Intel® Core™ Mobile Processors).
Notably the Linux kernel requirements of this release are more strict and the provided set of DSP topology files do not cover all the hardware that is supported by stable releases.
For a complete release that includes support for all hardware, you MUST use official release tarballs (currently SOF2.2) found here:
https://github.com/thesofproject/sof-bin/releases
These prebuilt binaries use the new SOF IPC4 host interface and thus a recent Linux kernel version is required. All the required patches are submitted to inclusion into mainline Linux kernel and are queued for later release in Linux 6.4. Before 6.4 is out (expected to be out in summer of 2023), following pre-6.4 kernel snapshots have been validated to work with SOF2.5 release for cAVS2.5:
Linux-next 20230320 or newer https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tag/?h=next-20230320
ASoC upstream tree, staging branch for 6.4 https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git/commit/?id=37b58becc1cee4d591024f2056d7ffa99c6089e0
SOF Linux kernel staging for 6.4 https://github.com/thesofproject/linux/commit/8525b92425e781dfef8c4344e4008e850a304395
This release includes a set of DSP topology files that cover a large set of systems equipped with a HDA audio codec for headset and speakers, and a set of digital microphones connected directly to the Platform Controller Hub (PCH).
Use the install script at sof-bin/install.sh to install the binaries on your system (or follow the manual instructions described in the install.sh file).
The SOF driver will by default look for a stable firmware, so following additional steps are needed to take the new firmware into use:
mkdir -p /lib/firmware/intel/avs /lib/firmware/intel/avs-tplg
ln -s /lib/firmware/intel/sof-v2.5/* /lib/firmware/intel/avs/
ln -s /lib/firmware/intel/sof-tplg-v2.5/* /lib/firmware/intel/avs-tplg/
Add the following file to "/etc/modprobe.d/sof-ipc4-override.conf":
# SOF audio driver, enable IPC4 mode
options snd_sof_pci ipc_type=1
options snd_sof_intel_hda_common sof_use_tplg_nhlt=1
And then reboot your system (or reload the SOF kernel modules).
To switch back to stable SOF2.2, restore symbolic /lib/firmware/intel/sof to point back to /lib/firmware/intel/sof-v2.2 and remove "/etc/modprobe.d/sof-ipc4-override.conf".