Failing to load wcn36xx firmware on db410c with mainline

[Bjorn Andersson]

On Wed 11 Jan 00:00 PST 2017, Riku Voipio wrote:

> Hi,
> 
> I'm triying wifi on Dragonboard 410c with mainline 4.10-rc3 + wcn36xxx
> patches from: https://git.kernel.org/cgit/linux/kernel/git/kvalo/ath.git/log/?h=pending
> 
> For device tree, the following was applied:
> https://patches.linaro.org/patch/83059/
> 
> Mainline:
> 
> [    7.858517] a204000.wcnss supply vddcx not found, using dummy regulator
> [    7.868858] remoteproc remoteproc0: a204000.wcnss is available
> [    7.872690] remoteproc remoteproc0: powering up a204000.wcnss
> [    7.874077] remoteproc remoteproc0: Booting fw image wcnss.mdt, size 7260
> [    7.882642] remoteproc remoteproc0: invalid firmware metadata
> [    7.886649] remoteproc remoteproc0: Failed to load program segments: 130
> 

It looks like you're running into an issue with how we interface with
TrustZone to authenticate the firmware on recent kernels.

The fix for this is under review, you can pick the latest patches here:
https://patchwork.kernel.org/patch/9491673/
https://patchwork.kernel.org/patch/9491677/

Regards,
Bjorn