[Sound-open-firmware] Status of Braswell

[Pierre-Louis Bossart]

On 8/26/19 2:02 PM, Pierre-Louis Bossart wrote:
> Hi Curtis,
> 
>> I am just curious what the status of Braswell devices are right now.
>> If the status is unknown that is fine. I may be doing some
>> experimenting with them in the near future. Any known issues or
>> caveats would be appreciated. :)
> 
> braswell is essentially cherrytrail which is very nearly identical to 
> baytrail except for an oscillator frequency. I tested SOF on Cyan a 
> number of times in the past, so all the plumbing should already be there.
> The only caveat is that there is quite a bit of DMA rework at the moment 
> so there might be some re-testing required if you take the latest 
> development branch.
> Also our module load/reload tests failed, but it's more of a dependency 
> with the max98080/TI aux chip that's not well handled than SOF proper.

well, it's really bad with the latest firmware and kernel:

[   16.264301] sof-audio-acpi 808622A8:00: ipc tx: 0x30200000: 
GLB_TPLG_MSG: BUFFER_NEW
[   16.264399] sof-audio-acpi 808622A8:00: error: ipc error for 
0x30200000 size 20
[   16.264404] sof-audio-acpi 808622A8:00: error: buffer BUF3.2 load failed
[   16.264408] sof-audio-acpi 808622A8:00: error: DSP failed to add 
widget id 0 type 31 name : BUF3.2 stream none reply -12
[   16.264413] sof-audio-acpi 808622A8:00: ASoC: failed to load widget 
BUF3.2
[   16.264426] sof-audio-acpi 808622A8:00: error: tplg component load 
failed -12
[   16.264435] sof-audio-acpi 808622A8:00: error: failed to load DSP 
topology -22
[   16.264438] sof-audio-acpi 808622A8:00: ASoC: failed to probe 
component -22
[   16.264464] cht-bsw-max98090 cht-bsw-max98090: ASoC: failed to 
instantiate card -22
[   16.264493] cht-bsw-max98090 cht-bsw-max98090: snd_soc_register_card 
failed -22

I don't know when things went south so spectacularly but clearly the 
Intel validation isn't up to snuff. Gah.