kernel 4.6-rc1

christian at boltares.de christian at boltares.de
Wed Mar 30 10:38:11 CEST 2016


Hi,

a short update on the baytrail, I have replaced the intel firmware with a
collection of firmware images I found on the internet (I am not sure where I
found the hint, but the files are from a repository for chromeos).

1.) remove everything under /var/lib/firmware/intel and replace it with the
files from attached tarfile.
2.) reboot
3.) when starting alsamixer you should find a couple of items prefixed with
"SPO*" when toggling those you should get some cracking out of the corresponding
speaker (left for SPOL_* etc.)

Greetings
Christian

> Paul Mansfield <paul at mansfield.co.uk> hat am 30. März 2016 um 09:30
> geschrieben:
> 
> 
> of late, the only clue to sound I see is this:
> 
> Mar 29 10:56:37 toksvig kernel: [   12.796243] iTCO_wdt: Found a Bay
> Trail SoC TCO device (Version=3, TCOBASE=0x0460)
> Mar 29 10:56:37 toksvig kernel: [   12.862158] baytrail-pcm-audio
> baytrail-pcm-audio: ipc: error DSP boot timeout
> 
> I found this in an old log file:
> Mar 26 10:46:39 toksvig kernel: [    6.110313] bus: 'platform': add
> driver sst-acpi
> Mar 26 10:46:39 toksvig kernel: [    6.110335] bus: 'platform':
> driver_probe_device: matched device 80860F28:00 with driver sst-a
> cpi
> Mar 26 10:46:39 toksvig kernel: [    6.110341] bus: 'platform':
> really_probe: probing driver sst-acpi with device 80860F28:00
> Mar 26 10:46:39 toksvig kernel: [    6.110351] sst-acpi 80860F28:00:
> no default pinctrl state
> Mar 26 10:46:39 toksvig kernel: [    6.110367] devices_kset: Moving
> 80860F28:00 to end of list
> Mar 26 10:46:39 toksvig kernel: [    6.111322] device class 'sound':
> registering
> Mar 26 10:46:39 toksvig kernel: [    6.111784] Registering platform
> device 'byt-rt5640'. Parent at 80860F28:00
> Mar 26 10:46:39 toksvig kernel: [    6.111791] device: 'byt-rt5640':
> device_add
> Mar 26 10:46:39 toksvig kernel: [    6.111805] bus: 'platform': add
> device byt-rt5640
> Mar 26 10:46:39 toksvig kernel: [    6.111842] PM: Adding info for
> platform:byt-rt5640
> Mar 26 10:46:39 toksvig kernel: [    6.111883] driver: 'sst-acpi':
> driver_bound: bound to device '80860F28:00'
> Mar 26 10:46:39 toksvig kernel: [    6.111898] __allocate_fw_buf:
> fw-intel/fw_sst_0f28.bin-48kHz_i2s_master buf=f453b8c0
> Mar 26 10:46:39 toksvig kernel: [    6.111975] bus: 'platform':
> really_probe: bound device 80860F28:00 to driver sst-acpi
> 
> 
> however, I can't work out which kernel it was running at the time when
> that happened!!
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